US20060111703A1 - Atrial ablation catheter and method of use - Google Patents
Atrial ablation catheter and method of use Download PDFInfo
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- US20060111703A1 US20060111703A1 US11/107,191 US10719105A US2006111703A1 US 20060111703 A1 US20060111703 A1 US 20060111703A1 US 10719105 A US10719105 A US 10719105A US 2006111703 A1 US2006111703 A1 US 2006111703A1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/0016—Energy applicators arranged in a two- or three dimensional array
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
- A61B2018/00267—Expandable means emitting energy, e.g. by elements carried thereon having a basket shaped structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
- A61B2018/00351—Heart
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1475—Electrodes retractable in or deployable from a housing
Definitions
- the inventions described below relate the field of atrial ablation.
- Atrial fibrillation is a form of arrhythmia, or irregular heartbeat, in which the atria (the two small upper chambers of the heart) quiver instead of beating effectively. While there are a number of variations of atrial fibrillation with different causes, they all involve irregularities in the transmission of electrical impulses through the heart. As a result of abnormalities in the heart's electrical impulses, the heart is not able to pump the blood out properly, and it may pool and clot. If a blood clot moves to an artery in the brain, AF can lead to stroke. AF is also associated with increased risks of congestive heart failure and cardiomyopathy. These risks warrant medical attention for patients with AF even if the symptoms are mild. Atrial fibrillation is the most common sustained heart rhythm disorder and increases the risk for heart disease and stroke, both leading causes of death in the United States. Over 2 million adults in the United States have been diagnosed with atrial fibrillation.
- An endocardial catheter with an electrode array particularly adapted to locate and ablate foci of arrhythmia which are required for sustained atrial fibrillation is provided.
- the array is easily deployed and retracted from the catheter, and presents a distally oriented electrode array that can be pressed flat against the wall of the atrium.
- a control system comprising an ECG analyzer and a RF power supply operates to analyze electrical signals obtained from the electrode array, determine if an arrythmogenic focus is present in the area covered by the array, and supply RF power to appropriate electrodes to ablate the focus.
- FIG. 1 illustrates the treatment to be accomplished with the devices and methods described below.
- FIG. 2 illustrates an atrial sensing and ablation catheter with an expandable electrode array constrained within an outer catheter tube.
- FIG. 3 is an enlarged view of the distal portion of the catheter of FIG. 2 .
- FIG. 4 is a cross-section of the distal portion of the catheter of FIG. 2 .
- FIG. 5 illustrates the atrial sensing and ablation catheter of FIG. 2 with the electrode array in its expanded configuration.
- FIG. 6 is an enlarged view of the electrode array in its expanded configuration.
- FIG. 7 is an end view of the electrode array in its expanded configuration.
- FIGS. 8 and 9 illustrate the mechanism of recapture of the electrode array of the atrial ablation catheter.
- FIG. 10 illustrates an alternate mechanism of recapture of the electrode array of the atrial ablation catheter.
- FIG. 11 illustrates the operation of the steering system of the atrial ablation catheter.
- FIG. 12 illustrates the electrode array in the configuration it takes on when pressed against a surface.
- FIG. 13 illustrates the electrode array in the configuration it takes on when pressed against a concave surface such as the atrial wall.
- FIG. 14 illustrates a method for using the electrode array in a monopolar mode.
- FIG. 1 illustrates the treatment to be accomplished with the devices and methods described below.
- FIG. 1 shows a cutaway view of the human heart 1 , showing the major structures of the heart including the right atrium 2 , the left atrium 3 , the right ventricle 4 , and the left ventricle 5 .
- the atrial septum 6 separates the left and right atria.
- the fossa ovalis 7 is a small depression in the atrial septum which is easily punctured and easily heals, and may be used as an access pathway to the left atrium from the right atrium.
- aberrant electrically conductive tissue may be found in the atrial walls 8 and 9 , as well as in the pulmonary veins 10 and pulmonary arteries 11 .
- arrhythmogenic foci and also referred to as drivers or rotors
- Ablation of these areas is an effective treatment for atrial fibrillation.
- circumferential ablation of the pulmonary veins cures the arrhythmia which originates in the pulmonary veins, it often results in rapid stenosis of the pulmonary veins.
- Ablation of foci, rotors or drivers on atrial walls may prevent the propagation of any aberrant electrical activity that originates in the pulmonary veins.
- a catheter is inserted into the atrium, preferably through the inferior vena cava 20 , as shown in the illustration, or through the superior vena cava 21 , into the right atrium or left atrium.
- the catheter penetrates the fossa ovalis (a trans-septal puncture will facilitate the crossing).
- the catheter 22 carries a distal electrode array 23 into the atrium, and this electrode array is adapted to be pressed into contact with the atrial wall.
- the electrode array is electrically connected to circuitry in a control system 24 which is operable to analyze electrical signals detected by the electrodes and pass RF current through the electrodes and heart tissue to ablate the tissue.
- a surface electrode 25 is mounted on the patient's body (typically on the back) to permit use of the electrodes in monopolar modes.
- a return electrode 26 may also be provided on the catheter 22 , proximal to the electrode array 23 . Using the catheter, an electrophysiologist will map regions of the atrial walls and apply energy through the catheter to ablate any arrhythmogenic foci which are identified in the mapping procedure. The procedure may be repeated as necessary throughout the atrium.
- FIG. 2 illustrates an atrial sensing and ablation catheter 22 with an expandable electrode array.
- the catheter comprises a handle 30 with a steering control knob 31 , electrical connector 32 and side-arm connector 33 .
- the electrical connector is used to connect the catheter to the control box.
- An outer catheter tube 34 is slidably mounted on the inner catheter tube 35 , and they may be releasably secured to each other by sliding the proximal portion of the outer catheter sheath strain relief 36 over the cylindrical detent 37 which is fixed to the handle.
- the side arm connector is used as a flushing port, to allow the flushing of debris and blood from the space between the inner and outer catheter tubes.
- the electrode array 23 is fixed to the inner catheter tube 35 , and is restrained within the distal portion of the outer catheter tube 34 .
- FIG. 3 is an enlarged view of the distal portion of the catheter of FIG. 2 .
- the electrode array 23 comprises a number of resiliently biased arms 39 which each carry a number of electrodes 40 .
- An array of five arms, each of which carry two electrodes, is suitable for use in the atria.
- the arms each comprise a wire (preferably a flat wire) with a distal section 41 , a proximal section 42 and an intervening bend section 43 .
- the electrodes are placed on the distal sections.
- the proximal end of each arm is fixed to the inner catheter tube 35 .
- the distal end of each arm is fixed to the floating tube (or pin) 44 . This floating tube is retained within the inner catheter tube, but is free to slide longitudinally within the inner catheter tube.
- the necessary electrical wires 45 and 46 which connect the electrodes to the control system run from each electrode proximally along the arm (and through any intervening electrodes), and enter the lumen of the floating tube 44 and then run proximally through the inner catheter tube and into the catheter handle. (Additional wires for temperature sensing thermistor or thermocouples may be included.) The wires are looped within the handle to provide the distension necessary for the resilient deployment of the electrode array as illustrated in FIG. 5 . A steering pull wire 47 is secured to the distal end of the inner catheter tube.
- the pull wire runs proximally to the steering control knob in the proximal handle, and is operably connected to the control knob so that rotation of the control knob pulls the pull wire to effectuate steering of the distal end of the device.
- the outer catheter tube is sufficiently flexible so that it is steered by deflection of the inner catheter tube.
- the materials used for each component are selected to provide the suitable flexibility, column strength and steerability.
- the outer catheter tube 34 may comprises nylon, polyester or other suitable polymer, and the inner catheter tube 35 comprises a stainless steel coil covered in shrink tubing to provide tensile strength.
- the electrode arms 39 comprise flat nitinol wires.
- the floating tube 44 comprises a stainless steel coil.
- the floating tube may be disposed over the inner catheter if accommodations are made for proximal fixation of the proximal arm segments to the inner catheter, such as placing the fixation points proximally on the inner catheter or providing slots on the proximal portion of the floating tube.
- the electrode wires may be disposed on or in the wall of the inner catheter, rather than passing through the lumen of the inner catheter as shown in the Figures.
- FIG. 4 is a cross-section of the distal portion of the catheter of FIG. 2 .
- an electrode 40 is mounted on each arm 39 .
- These electrodes will be located on the inner portion of the deployed array as shown in FIGS. 5 and 6 .
- the electrodes are tubes of triangular cross section, with tissue contacting faces directed radially outwardly from the catheter.
- the electrode wires 45 which are connected to the outside electrodes, run through the inside electrodes on their route to the floating tube.
- the electrode wires 46 are fixed to the inner wall of the inner electrode. As shown in this view, the electrodes are collapsed upon the floating tube 44 , and due to the triangular shape they are securely packed within the outer catheter tube 34 .
- the floating tube 44 also houses the various electrode wires 45 and 46 .
- FIGS. 5 and 6 illustrate the atrial sensing and ablation catheter of FIG. 2 with the electrode array in its expanded configuration.
- the outer catheter tube 34 has been withdrawn proximally over the catheter inner tube, allowing the array arms 39 to expand to create substantially triangular array segments.
- Each proximal arm segment resiliently bends radially outwardly from the proximal connection with the inner catheter tube, while each distal arm segment bends radially inwardly from the bend portion toward the longitudinally axis of the catheter.
- the distal arm segments also tend proximally, and establish an acute angle a with the proximal arm segment from which it extends, and the angle is small such that the distal end of the distal arm segment (the point of attachment to the floating tube) is proximal to the bend point.
- the angle b which is the angle between the long axis of the catheter and the proximal arm segment, is also an acute angle.
- the angle c between the catheter longitudinal axis and the distal arm segment is thus obtuse, creating a forward biased array.
- the forward biased array results from providing a bend angle a which is less than 90-b, or, conversely, providing a bend angle a such that a+b is less than 90°.
- the overall curvature of the arms may provide an arc such that the angle b is acute and the angle c is obtuse.
- the resilient expansion of the electrode array pushes the floating tube 44 proximally into the inner catheter tube.
- the distal electrode arms will be forced distally, as the proximal segments are compressed inwardly starting from the proximal end, to first splay the distal segments toward and through a perpendicular relationship with the floating tube such that the joint between the arms and the floating tube is distal to the bend point, while drawing the floating tube distally within the inner catheter tube.
- FIG. 7 is an end view of the electrode array in its expanded configuration.
- the five arm array is fully expanded resiliently and resiliently flattened as if pressed against a flat surface, to create a substantially planar arrangement of the distal arm segments and the electrodes.
- the array provides two pairs of electrodes on each of five arms evenly distributed about the floating tube 44 .
- the electrode wires 45 and 46 can be seen extending inwardly from the electrodes and running proximally down the floating tube.
- the arms are each separated from the adjacent arms by about 72°, for form a pentagram (the actual shape obtained within the heart will of course diverge from the ideal due to resilient deformation as the array is pressed against the atrium walls).
- the array when deployed and flattened as shown, is preferably about 15 to 30 mm in diameter (to the outer extent of the arm), with each distal arm segment 41 being about 7.5 to 15 mm long.
- the diameter of the electrode group (from the center to the outer extent of the electrodes) is preferably about 2 to 30 mm.
- the wire width is preferable about 0.26 mm, and the distal face of the electrodes is preferably about 1 to 2 mm wide and 2 to 3 mm long (the illustrated electrodes are 2 mm wide and 1.6 mm wide).
- the electrode array can comprise any number of arms, and each arm can carry any number of electrodes, though the five arm array, with dimensions described above, is well suited for the typical atrial ablation therapy.
- FIGS. 8 and 9 illustrate the mechanism of recapture of the electrode array.
- the distal electrode arms 41 will be forced distally, as the proximal segments 42 are compressed inwardly starting from the proximal end, as shown in FIG. 8 .
- This initially splays the distal segments toward a perpendicular relationship with the floating tube as shown in FIG. 8 .
- the distal arm segments become further splayed, such that they are distal to the proximal arms segments.
- the bend sections provide a means for rotatably joining the distal arm segment to the proximal arm segment, and other suitable mechanisms, such as hinges, may be used instead.
- FIG. 10 illustrate an alternate mechanism of recapture of the electrode array of the atrial ablation catheter.
- the small diameter configuration is achieved by folding the distal arm segments axially inside the proximal arm segments. This is achieved by biasing the proximal arm segments to bow outwardly, providing an inward component of force when compressed by action of the outer catheter tube. Recapture of the array after use may be aided by pulling proximally on the floating tube with a control wire operable from the proximal handle.
- FIG. 11 illustrates the operation of the steering system of the atrial ablation catheter.
- the steering pull wire 47 is secured to the distal end of the inner catheter tube 35 , such that pulling the pull wire proximally deflects the distal end of the inner catheter tube.
- the pull wire may, as shown, be unsecured to the inner catheter tube wall along much of its length, or it may be embedded in the inner catheter tube wall or otherwise restrained to the inner catheter tube.
- the entire distal end of the catheter may also be steered with this pull wire, as the outer catheter tube is sufficiently flexible that it will deform along with the inner catheter tube. If desired, similar steering can be effected with a pushable wire or stylet in place of the pull wire.
- FIG. 12 illustrates the electrode array in the configuration it takes on when pressed against the atrial wall.
- FIG. 14 illustrates a method for using the electrode array in a monopolar mode, especially in sensitive areas of the atrium such as the back wall (the posterior wall) and the ostia of the pulmonary veins.
- the electrode array is placed over the posterior wall 51 of the left atrium, with electrodes in contact with the atrium wall.
- This wall is fairly thin, and the patient's esophagus lies immediately behind this wall. Ablation in this area entails a risk of perforating the atrial wall and the esophagus.
- the electrode array is operated in a monopolar mode. For each arrhythmogenic focus found by the electrophysiologist (based on the electrical signals detected by the various electrodes), an appropriate electrode can be energized in a monopolar mode to direct ablative RF power to the atrial wall, while the return electrode 26 provides a ground for the RF energy.
- the current densities around the electrode will be sufficient to locally ablate the atrial wall, but because the RF energy takes a path toward the return electrode, the current density at the epicardial surface of the atrium, and in surrounding structures such as the esophagus, will be minimized.
- the device may be used is this mode to ablate the ostium of a pulmonary vein, and treatment of the ostium may include additional steps of ablating the ostium with the electrode in a first orientation, then rotating the electrode array and maintaining (or re-establishing) contact with the ostium to establish contact in a second orientation and then ablating the ostium with the electrode in the second orientation, and repeating as necessary to create a ring of ablated zones establishing substantially circumferential ablation of the pulmonary vein ostium.
- the array may be used on the heart during open heart surgery, open chest surgery, or minimally invasive thoracic surgery.
- a short catheter or cannula carrying the electrode array may be inserted into the heart through the wall of the right atrium or through the vena cava, or an electrode array may be applied directly to the atrium wall through an incision in the left atrium wall.
- the electrode array may be applied to the epicardial surface of the atrium or other areas of the heart to detect and ablate arrhythmogenic foci from outside the heart.
Abstract
An atrial ablation catheter and methods for its use. The endocardial catheter includes an electrode array particularly adapted to locate and ablate foci of arrhythmia which are required for sustained atrial fibrillation is provided. The array is easily deployed and retracted from the catheter, and presents a distally oriented electrode array that can be pressed against the wall of the atrium.
Description
- This application is a continuation-in-part of U.S. patent application Ser. No. 10/997,172 filed Nov. 24, 2004.
- The inventions described below relate the field of atrial ablation.
- Atrial fibrillation is a form of arrhythmia, or irregular heartbeat, in which the atria (the two small upper chambers of the heart) quiver instead of beating effectively. While there are a number of variations of atrial fibrillation with different causes, they all involve irregularities in the transmission of electrical impulses through the heart. As a result of abnormalities in the heart's electrical impulses, the heart is not able to pump the blood out properly, and it may pool and clot. If a blood clot moves to an artery in the brain, AF can lead to stroke. AF is also associated with increased risks of congestive heart failure and cardiomyopathy. These risks warrant medical attention for patients with AF even if the symptoms are mild. Atrial fibrillation is the most common sustained heart rhythm disorder and increases the risk for heart disease and stroke, both leading causes of death in the United States. Over 2 million adults in the United States have been diagnosed with atrial fibrillation.
- Various ablation techniques have been proposed to treat atrial fibrillation, including the Cox-Maze procedure, linear ablation of various regions of the atrium, and circumferential pulmonary vein ablation. Each of these techniques has its various drawbacks. The Cox-Maze procedure and linear ablation procedures are tedious and time-consuming, taking up to several hours to accomplish endocardially. Circumferential ablation is proving to lead to rapid stenosis and occlusion of the pulmonary veins. Thus, improved atrial ablation techniques are sorely needed.
- The devices and methods described below provide for a simplified approach to the treatment of atrial fibrillation with substantially improved efficacy & outcomes in patients with paroxysmal or persistent atrial fibrillation. An endocardial catheter with an electrode array particularly adapted to locate and ablate foci of arrhythmia which are required for sustained atrial fibrillation is provided. The array is easily deployed and retracted from the catheter, and presents a distally oriented electrode array that can be pressed flat against the wall of the atrium. A control system comprising an ECG analyzer and a RF power supply operates to analyze electrical signals obtained from the electrode array, determine if an arrythmogenic focus is present in the area covered by the array, and supply RF power to appropriate electrodes to ablate the focus.
-
FIG. 1 illustrates the treatment to be accomplished with the devices and methods described below. -
FIG. 2 illustrates an atrial sensing and ablation catheter with an expandable electrode array constrained within an outer catheter tube. -
FIG. 3 is an enlarged view of the distal portion of the catheter ofFIG. 2 . -
FIG. 4 is a cross-section of the distal portion of the catheter ofFIG. 2 . -
FIG. 5 illustrates the atrial sensing and ablation catheter ofFIG. 2 with the electrode array in its expanded configuration. -
FIG. 6 is an enlarged view of the electrode array in its expanded configuration. -
FIG. 7 is an end view of the electrode array in its expanded configuration. -
FIGS. 8 and 9 illustrate the mechanism of recapture of the electrode array of the atrial ablation catheter. -
FIG. 10 illustrates an alternate mechanism of recapture of the electrode array of the atrial ablation catheter. -
FIG. 11 illustrates the operation of the steering system of the atrial ablation catheter. -
FIG. 12 illustrates the electrode array in the configuration it takes on when pressed against a surface. -
FIG. 13 illustrates the electrode array in the configuration it takes on when pressed against a concave surface such as the atrial wall. -
FIG. 14 illustrates a method for using the electrode array in a monopolar mode. -
FIG. 1 illustrates the treatment to be accomplished with the devices and methods described below.FIG. 1 shows a cutaway view of thehuman heart 1, showing the major structures of the heart including theright atrium 2, theleft atrium 3, theright ventricle 4, and theleft ventricle 5. Theatrial septum 6 separates the left and right atria. The fossa ovalis 7 is a small depression in the atrial septum which is easily punctured and easily heals, and may be used as an access pathway to the left atrium from the right atrium. In a patient suffering from atrial fibrillation, aberrant electrically conductive tissue may be found in theatrial walls 8 and 9, as well as in thepulmonary veins 10 andpulmonary arteries 11. Ablation of these areas, referred to as arrhythmogenic foci (and also referred to as drivers or rotors), is an effective treatment for atrial fibrillation. Though circumferential ablation of the pulmonary veins cures the arrhythmia which originates in the pulmonary veins, it often results in rapid stenosis of the pulmonary veins. Ablation of foci, rotors or drivers on atrial walls, however, may prevent the propagation of any aberrant electrical activity that originates in the pulmonary veins. - To accomplish this, a catheter is inserted into the atrium, preferably through the
inferior vena cava 20, as shown in the illustration, or through thesuperior vena cava 21, into the right atrium or left atrium. When passing into the left atrium, as illustrated, the catheter penetrates the fossa ovalis (a trans-septal puncture will facilitate the crossing). Thecatheter 22 carries adistal electrode array 23 into the atrium, and this electrode array is adapted to be pressed into contact with the atrial wall. The electrode array is electrically connected to circuitry in acontrol system 24 which is operable to analyze electrical signals detected by the electrodes and pass RF current through the electrodes and heart tissue to ablate the tissue. Asurface electrode 25 is mounted on the patient's body (typically on the back) to permit use of the electrodes in monopolar modes. Areturn electrode 26 may also be provided on thecatheter 22, proximal to theelectrode array 23. Using the catheter, an electrophysiologist will map regions of the atrial walls and apply energy through the catheter to ablate any arrhythmogenic foci which are identified in the mapping procedure. The procedure may be repeated as necessary throughout the atrium. -
FIG. 2 illustrates an atrial sensing andablation catheter 22 with an expandable electrode array. The catheter comprises ahandle 30 with asteering control knob 31,electrical connector 32 and side-arm connector 33. The electrical connector is used to connect the catheter to the control box. Anouter catheter tube 34 is slidably mounted on theinner catheter tube 35, and they may be releasably secured to each other by sliding the proximal portion of the outer cathetersheath strain relief 36 over thecylindrical detent 37 which is fixed to the handle. The side arm connector is used as a flushing port, to allow the flushing of debris and blood from the space between the inner and outer catheter tubes. Theelectrode array 23 is fixed to theinner catheter tube 35, and is restrained within the distal portion of theouter catheter tube 34. -
FIG. 3 is an enlarged view of the distal portion of the catheter ofFIG. 2 . Theelectrode array 23 comprises a number of resilientlybiased arms 39 which each carry a number ofelectrodes 40. An array of five arms, each of which carry two electrodes, is suitable for use in the atria. The arms each comprise a wire (preferably a flat wire) with adistal section 41, aproximal section 42 and an interveningbend section 43. The electrodes are placed on the distal sections. The proximal end of each arm is fixed to theinner catheter tube 35. The distal end of each arm is fixed to the floating tube (or pin) 44. This floating tube is retained within the inner catheter tube, but is free to slide longitudinally within the inner catheter tube. The necessaryelectrical wires tube 44 and then run proximally through the inner catheter tube and into the catheter handle. (Additional wires for temperature sensing thermistor or thermocouples may be included.) The wires are looped within the handle to provide the distension necessary for the resilient deployment of the electrode array as illustrated inFIG. 5 . Asteering pull wire 47 is secured to the distal end of the inner catheter tube. The pull wire runs proximally to the steering control knob in the proximal handle, and is operably connected to the control knob so that rotation of the control knob pulls the pull wire to effectuate steering of the distal end of the device. The outer catheter tube is sufficiently flexible so that it is steered by deflection of the inner catheter tube. The materials used for each component are selected to provide the suitable flexibility, column strength and steerability. Theouter catheter tube 34 may comprises nylon, polyester or other suitable polymer, and theinner catheter tube 35 comprises a stainless steel coil covered in shrink tubing to provide tensile strength. Theelectrode arms 39 comprise flat nitinol wires. The floatingtube 44 comprises a stainless steel coil. The floating tube may be disposed over the inner catheter if accommodations are made for proximal fixation of the proximal arm segments to the inner catheter, such as placing the fixation points proximally on the inner catheter or providing slots on the proximal portion of the floating tube. The electrode wires may be disposed on or in the wall of the inner catheter, rather than passing through the lumen of the inner catheter as shown in the Figures. -
FIG. 4 is a cross-section of the distal portion of the catheter ofFIG. 2 . At this cross section, anelectrode 40 is mounted on eacharm 39. These electrodes will be located on the inner portion of the deployed array as shown inFIGS. 5 and 6 . The electrodes are tubes of triangular cross section, with tissue contacting faces directed radially outwardly from the catheter. Theelectrode wires 45, which are connected to the outside electrodes, run through the inside electrodes on their route to the floating tube. Theelectrode wires 46 are fixed to the inner wall of the inner electrode. As shown in this view, the electrodes are collapsed upon the floatingtube 44, and due to the triangular shape they are securely packed within theouter catheter tube 34. The floatingtube 44 also houses thevarious electrode wires -
FIGS. 5 and 6 illustrate the atrial sensing and ablation catheter ofFIG. 2 with the electrode array in its expanded configuration. Theouter catheter tube 34 has been withdrawn proximally over the catheter inner tube, allowing thearray arms 39 to expand to create substantially triangular array segments. Each proximal arm segment resiliently bends radially outwardly from the proximal connection with the inner catheter tube, while each distal arm segment bends radially inwardly from the bend portion toward the longitudinally axis of the catheter. Preferably, the distal arm segments also tend proximally, and establish an acute angle a with the proximal arm segment from which it extends, and the angle is small such that the distal end of the distal arm segment (the point of attachment to the floating tube) is proximal to the bend point. The angle b, which is the angle between the long axis of the catheter and the proximal arm segment, is also an acute angle. The angle c between the catheter longitudinal axis and the distal arm segment is thus obtuse, creating a forward biased array. Generally, the forward biased array results from providing a bend angle a which is less than 90-b, or, conversely, providing a bend angle a such that a+b is less than 90°. In embodiments where the arm segments are not straight, the overall curvature of the arms may provide an arc such that the angle b is acute and the angle c is obtuse. - The resilient expansion of the electrode array pushes the floating
tube 44 proximally into the inner catheter tube. When the outer catheter tube is pushed distally over the electrode array, the distal electrode arms will be forced distally, as the proximal segments are compressed inwardly starting from the proximal end, to first splay the distal segments toward and through a perpendicular relationship with the floating tube such that the joint between the arms and the floating tube is distal to the bend point, while drawing the floating tube distally within the inner catheter tube. -
FIG. 7 is an end view of the electrode array in its expanded configuration. In this view, the five arm array is fully expanded resiliently and resiliently flattened as if pressed against a flat surface, to create a substantially planar arrangement of the distal arm segments and the electrodes. The array provides two pairs of electrodes on each of five arms evenly distributed about the floatingtube 44. Theelectrode wires distal arm segment 41 being about 7.5 to 15 mm long. The diameter of the electrode group (from the center to the outer extent of the electrodes) is preferably about 2 to 30 mm. The wire width is preferable about 0.26 mm, and the distal face of the electrodes is preferably about 1 to 2 mm wide and 2 to 3 mm long (the illustrated electrodes are 2 mm wide and 1.6 mm wide). The electrode array can comprise any number of arms, and each arm can carry any number of electrodes, though the five arm array, with dimensions described above, is well suited for the typical atrial ablation therapy. -
FIGS. 8 and 9 illustrate the mechanism of recapture of the electrode array. When theouter catheter tube 34 is pushed distally over theinner catheter tube 35 and the electrode array, thedistal electrode arms 41 will be forced distally, as theproximal segments 42 are compressed inwardly starting from the proximal end, as shown inFIG. 8 . This initially splays the distal segments toward a perpendicular relationship with the floating tube as shown inFIG. 8 . As the outer catheter tube is translated further distally, such that the joint between the arms and the floating tube is distal to the bend point, the distal arm segments become further splayed, such that they are distal to the proximal arms segments. Because the distal arm segments are fixed to the floating tube, their movement distally draws the floating tube distally within the inner catheter tube. The array is completely captured when the outer catheter tube is translated fully forward to resume the position shown inFIGS. 2 and 3 . As can be seen from the illustration, the bend sections provide a means for rotatably joining the distal arm segment to the proximal arm segment, and other suitable mechanisms, such as hinges, may be used instead. -
FIG. 10 illustrate an alternate mechanism of recapture of the electrode array of the atrial ablation catheter. In the device shown inFIG. 10 , the small diameter configuration is achieved by folding the distal arm segments axially inside the proximal arm segments. This is achieved by biasing the proximal arm segments to bow outwardly, providing an inward component of force when compressed by action of the outer catheter tube. Recapture of the array after use may be aided by pulling proximally on the floating tube with a control wire operable from the proximal handle. -
FIG. 11 illustrates the operation of the steering system of the atrial ablation catheter. Thesteering pull wire 47 is secured to the distal end of theinner catheter tube 35, such that pulling the pull wire proximally deflects the distal end of the inner catheter tube. Using the pull wire, the operator can steer the array as needed to contact different areas of the atrium wall. The pull wire may, as shown, be unsecured to the inner catheter tube wall along much of its length, or it may be embedded in the inner catheter tube wall or otherwise restrained to the inner catheter tube. The entire distal end of the catheter may also be steered with this pull wire, as the outer catheter tube is sufficiently flexible that it will deform along with the inner catheter tube. If desired, similar steering can be effected with a pushable wire or stylet in place of the pull wire. -
FIG. 12 illustrates the electrode array in the configuration it takes on when pressed against the atrial wall. After the array has been steered to face a target site within the atrium, the operator will press the distal face of the array into contact with the atrium wall, and this may cause the distal face to deform, resiliently, to a substantially flat configuration as shown. Given the concave curvature of the atrium chamber, the array will deform to obtain distal arm segments with slightly convex curvature as shown inFIG. 12 . - After contact has been established between the atrium wall and the electrode array, the operator will analyze electrical signals detected by the electrodes to determine if the array has been placed over an arrhythmogenic focus. If it has, the operator may energize any of the electrodes, as appropriate, to ablate the focus. Bipolar RF energy may be applied between pairs of the electrodes, or monopolar energy may be applied to any of the electrodes (grounded to the surface electrode or a return electrode located proximally on the catheter body).
FIG. 14 illustrates a method for using the electrode array in a monopolar mode, especially in sensitive areas of the atrium such as the back wall (the posterior wall) and the ostia of the pulmonary veins. As shown, the electrode array is placed over theposterior wall 51 of the left atrium, with electrodes in contact with the atrium wall. This wall is fairly thin, and the patient's esophagus lies immediately behind this wall. Ablation in this area entails a risk of perforating the atrial wall and the esophagus. To reduce this risk, the electrode array is operated in a monopolar mode. For each arrhythmogenic focus found by the electrophysiologist (based on the electrical signals detected by the various electrodes), an appropriate electrode can be energized in a monopolar mode to direct ablative RF power to the atrial wall, while thereturn electrode 26 provides a ground for the RF energy. With the return electrode on the catheter, the current densities around the electrode will be sufficient to locally ablate the atrial wall, but because the RF energy takes a path toward the return electrode, the current density at the epicardial surface of the atrium, and in surrounding structures such as the esophagus, will be minimized. The device may be used is this mode to ablate the ostium of a pulmonary vein, and treatment of the ostium may include additional steps of ablating the ostium with the electrode in a first orientation, then rotating the electrode array and maintaining (or re-establishing) contact with the ostium to establish contact in a second orientation and then ablating the ostium with the electrode in the second orientation, and repeating as necessary to create a ring of ablated zones establishing substantially circumferential ablation of the pulmonary vein ostium. - Though the ablation device has been described in terms of its preferred endocardial and transcutaneous method of use, the array may be used on the heart during open heart surgery, open chest surgery, or minimally invasive thoracic surgery. Thus, during open chest surgery, a short catheter or cannula carrying the electrode array may be inserted into the heart through the wall of the right atrium or through the vena cava, or an electrode array may be applied directly to the atrium wall through an incision in the left atrium wall. Also, the electrode array may be applied to the epicardial surface of the atrium or other areas of the heart to detect and ablate arrhythmogenic foci from outside the heart.
- While the preferred embodiments of the devices and methods have been described in reference to the environment in which they were developed, they are merely illustrative of the principles of the inventions. Other embodiments and configurations may be devised without departing from the spirit of the inventions and the scope of the appended claims.
Claims (20)
1. An ablation catheter comprising:
an outer catheter tube;
an inner catheter tube slidably disposed within the outer catheter tube, said inner catheter tube having a distal end adapted for insertion into a vessel of the body;
a floating tube slidably disposed relative to the inner catheter tube; and
an electrode array comprising a plurality of resilient arms, each arm having a proximal arm segment fixed to the inner catheter tube and a distal arm segment fixed to the floating tube, whereby the electrode array may be compressed by longitudinal translation of the outer catheter tube relative to the inner catheter tube, and the floating tube longitudinally translates relative to the inner tube to accommodate longitudinal movement of the distal end of the resilient arms in response to compression of the electrode array;
a plurality of electrodes disposed on each of the distal arm segments of the array.
2. The ablation catheter of claim 1 , wherein:
the floating tube is disposed at least partially within the distal end of the inner catheter tube.
3. The ablation catheter of claim 1 , wherein:
the electrode array is resiliently movable from a small diameter configuration to a large diameter configuration, and in the large diameter configuration each proximal arm segment resiliently bends radially outwardly from the inner catheter tube, and each distal arm segment bends radially inwardly toward the longitudinal axis of the catheter from a bend point connecting the proximal arm segment to the distal arm segment, creating an acute angle between each distal arm segment and its associated proximal arm segment.
4. The ablation catheter of claim 1 , wherein:
the electrode array is resiliently movable from a small diameter configuration and a large diameter configuration, and in the large diameter configuration each proximal arm segment resiliently bends radially outwardly from the inner catheter tube, and each distal arm segment bends radially inwardly and proximally toward the longitudinal axis of the catheter from a bend point connecting the proximal arm segment to the distal arm segment.
5. The ablation catheter of claim 1 , wherein:
the electrode array is resiliently movable from a small diameter configuration and a large diameter configuration, and in the large diameter configuration each proximal arm segment resiliently bends radially outwardly from the inner catheter tube, and each distal arm segment bends radially inwardly and proximally toward the longitudinal axis of the catheter from a bend point connecting the proximal arm segment to the distal arm segment, and said electrode arms are further deformable upon pressing the array against a surface to position the distal arm segments into a substantially planar arrangement.
6. The ablation catheter of claim 4 in the small diameter configuration, the distal arm segments are restrained within a segment of the outer catheter tube which is distal to the proximal arm segments, and extend distally from the bend point.
7. The ablation catheter of claim 4 in the small diameter configuration, the distal arm segments are folded inwardly so as to be disposed proximate the proximal arm segments and extend proximally from the bend point.
8. The ablation of claim 5 further comprising a control wire fixed to the floating tube and operable from the proximal end of the catheter to pull the floating tube proximally.
9. The ablation catheter of claim 1 , wherein:
the floating tube comprises a stainless steel coil.
10. An ablation catheter comprising:
a catheter;
an electrode array disposed on the distal end of the catheter, said electrode array comprising a plurality of resilient arms, each arm having a proximal arm segment and a distal arm segment resiliently or rotatably joined to each other at a bend point, whereby the electrode array may be retained in a small diameter configuration within the catheter and released to assume a large diameter configuration, wherein the large diameter configuration comprises the proximal arm segments bent radially outwardly from the catheter with the distal arm segments extending radially inwardly from the proximal arm segments; and
at least one electrode disposed on each of the distal arm segments of the array;
11. The ablation catheter of claim 10 wherein the distal arm segments tend proximally from the bend point in the large diameter configuration.
12. The ablation catheter of claim 10 wherein the distal arm segments tend proximally from the bend point in the large diameter configuration and tend distally from the bend point in the small diameter configuration.
13. The ablation catheter of claim 10 further comprising:
a tube slidably disposed within the catheter and fixed to the distal arm segments.
14. The ablation catheter of claim 10 further comprising:
a tube slidably disposed within the catheter and fixed to the distal arm segments, wherein the tube comprises a coil.
15. The ablation catheter of claim 10 wherein, in the small diameter configuration, the distal arm segments are restrained within a segment of the outer catheter tube which is distal to the proximal arm segments, and extend distally from the bend point.
16. The ablation catheter of claim 10 wherein, in the small diameter configuration, the distal arm segments are folded inwardly so as to be disposed proximate the proximal arm segments and extend proximally from the bend point.
17. The ablation of claim 16 further comprising a control wire fixed to the floating tube and operable from the proximal end of the catheter to pull the floating tube proximally.
18. A method of treating atrial fibrillation comprising:
providing a catheter having an electrode array disposed on the distal end thereof, said electrode array comprising:
a plurality of resilient arms, each arm having a proximal arm segment and a distal arm segment connected by a bend point, said arms being resiliently biased to bend at an acute angle at the bend points, and a plurality of electrodes disposed on each of the distal arm segments;
wherein said electrode array has an expanded configuration in which each proximal arm segment resiliently bends radially outwardly from the catheter, and each distal arm segment bends radially inwardly and proximally toward the longitudinal axis of the catheter from the bend point;
restraining the electrode array in a small diameter configuration within the outer catheter tube;
inserting the electrode array into the left atrium of the heart of a patient;
withdrawing the outer tube from the electrode array, and allowing the electrode array to expand to its expanded configuration;
pressing the distal arm segments of the electrode array against an area of the heart wall;
sensing electrical signals of the heart wall through the electrodes of the electrode array;
upon determining that the array is disposed over an arrhythmogenic focus in the left atrium, passing energy through the electrode array to ablate a portion of the heart wall;
moving the electrode array as desired to additional areas of the heart wall and repeating the sensing and ablating steps as desired to treat atrial fibrillation.
19. The method of claim 18 further comprising the steps of:
providing a return electrode on the catheter, proximal to the electrodes of the electrode array;
pressing the electrode array against the posterior wall of the left atrium of the heart to sense electrical signals;
operating at least one electrode of the array in monopolar mode in conjunction with the return electrode ablate a portion of the posterior wall of the left atrium.
20. The method of claim 19 further comprising the steps of:
providing a return electrode on the catheter, proximal to the electrodes of the electrode array;
pressing the electrode array against an ostium of a pulmonary vein opening to the left atrium of the heart to sense electrical signals;
operating at least one electrode of the array in monopolar mode in conjunction with the return electrode to ablate a portion of the left atrium wall surrounding a pulmonary vein.
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JP2007543550A JP2008521504A (en) | 2004-11-24 | 2005-11-23 | Atrial ablation catheter and methods of use |
CA002587917A CA2587917A1 (en) | 2004-11-24 | 2005-11-23 | Atrial ablation catheter and method of use |
EP20050852220 EP1814484B1 (en) | 2004-11-24 | 2005-11-23 | Atrial ablation catheter |
PCT/US2005/042812 WO2006058251A2 (en) | 2004-11-24 | 2005-11-23 | Atrial ablation catheter and method of use |
AU2005309408A AU2005309408B2 (en) | 2004-11-24 | 2005-11-23 | Atrial ablation catheter and method of use |
US12/197,425 US8273084B2 (en) | 2004-11-24 | 2008-08-25 | Atrial ablation catheter and method of use |
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---|---|---|---|---|
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US20110098694A1 (en) * | 2009-10-28 | 2011-04-28 | Ethicon Endo-Surgery, Inc. | Methods and instruments for treating cardiac tissue through a natural orifice |
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US8409219B2 (en) | 2004-06-18 | 2013-04-02 | Medtronic, Inc. | Method and system for placement of electrical lead inside heart |
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US9375268B2 (en) | 2007-02-15 | 2016-06-28 | Ethicon Endo-Surgery, Inc. | Electroporation ablation apparatus, system, and method |
US9427255B2 (en) | 2012-05-14 | 2016-08-30 | Ethicon Endo-Surgery, Inc. | Apparatus for introducing a steerable camera assembly into a patient |
US9545290B2 (en) | 2012-07-30 | 2017-01-17 | Ethicon Endo-Surgery, Inc. | Needle probe guide |
US9572623B2 (en) | 2012-08-02 | 2017-02-21 | Ethicon Endo-Surgery, Inc. | Reusable electrode and disposable sheath |
US9883910B2 (en) | 2011-03-17 | 2018-02-06 | Eticon Endo-Surgery, Inc. | Hand held surgical device for manipulating an internal magnet assembly within a patient |
US10098527B2 (en) | 2013-02-27 | 2018-10-16 | Ethidcon Endo-Surgery, Inc. | System for performing a minimally invasive surgical procedure |
US10098691B2 (en) | 2009-12-18 | 2018-10-16 | Ethicon Endo-Surgery, Inc. | Surgical instrument comprising an electrode |
US10105141B2 (en) | 2008-07-14 | 2018-10-23 | Ethicon Endo-Surgery, Inc. | Tissue apposition clip application methods |
US10258406B2 (en) | 2011-02-28 | 2019-04-16 | Ethicon Llc | Electrical ablation devices and methods |
US10278761B2 (en) | 2011-02-28 | 2019-05-07 | Ethicon Llc | Electrical ablation devices and methods |
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US10314649B2 (en) | 2012-08-02 | 2019-06-11 | Ethicon Endo-Surgery, Inc. | Flexible expandable electrode and method of intraluminal delivery of pulsed power |
US10314603B2 (en) | 2008-11-25 | 2019-06-11 | Ethicon Llc | Rotational coupling device for surgical instrument with flexible actuators |
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US10779882B2 (en) | 2009-10-28 | 2020-09-22 | Ethicon Endo-Surgery, Inc. | Electrical ablation devices |
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Families Citing this family (97)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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US7455670B2 (en) * | 2005-01-14 | 2008-11-25 | Co-Repair, Inc. | System and method for the treatment of heart tissue |
US10154792B2 (en) * | 2005-03-01 | 2018-12-18 | Checkpoint Surgical, Inc. | Stimulation device adapter |
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US9480552B2 (en) | 2006-04-26 | 2016-11-01 | The Cleveland Clinic Foundation | Apparatus and method for treating cardiovascular diseases |
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US8588885B2 (en) | 2007-05-09 | 2013-11-19 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Bendable catheter arms having varied flexibility |
US8224416B2 (en) * | 2007-05-09 | 2012-07-17 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Basket catheter having multiple electrodes |
WO2009076461A1 (en) | 2007-12-10 | 2009-06-18 | Ablation Frontiers, Inc. | Rf energy delivery system and method |
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US8882761B2 (en) | 2008-07-15 | 2014-11-11 | Catheffects, Inc. | Catheter and method for improved ablation |
US10695126B2 (en) | 2008-10-06 | 2020-06-30 | Santa Anna Tech Llc | Catheter with a double balloon structure to generate and apply a heated ablative zone to tissue |
US9795442B2 (en) | 2008-11-11 | 2017-10-24 | Shifamed Holdings, Llc | Ablation catheters |
WO2010056771A1 (en) | 2008-11-11 | 2010-05-20 | Shifamed Llc | Low profile electrode assembly |
US9339331B2 (en) | 2008-12-29 | 2016-05-17 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Non-contact electrode basket catheters with irrigation |
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EP2445568B1 (en) | 2009-06-24 | 2020-09-23 | Kalila Medical, Inc. | Steerable medical delivery devices |
US8280477B2 (en) * | 2009-07-29 | 2012-10-02 | Medtronic Cryocath Lp | Mono-phasic action potential electrogram recording catheter, and method |
EP2512330A1 (en) | 2009-12-14 | 2012-10-24 | Mayo Foundation for Medical Education and Research | Device and method for treating cardiac disorders by modulating autonomic response |
JP2013524862A (en) | 2010-01-15 | 2013-06-20 | メドトロニック・アドヴァンスド・エナジー・エルエルシー | Electrosurgical apparatus, electrosurgical unit, and method of use thereof |
AU2011232335A1 (en) | 2010-03-24 | 2012-10-11 | Shifamed Holdings, Llc | Intravascular tissue disruption |
US20110238058A1 (en) * | 2010-03-29 | 2011-09-29 | Estech, Inc. (Endoscopic Technologies, Inc.) | Indifferent electrode pad systems and methods for tissue ablation |
US8845631B2 (en) | 2010-04-28 | 2014-09-30 | Medtronic Ablation Frontiers Llc | Systems and methods of performing medical procedures |
US9655677B2 (en) | 2010-05-12 | 2017-05-23 | Shifamed Holdings, Llc | Ablation catheters including a balloon and electrodes |
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US8906012B2 (en) | 2010-06-30 | 2014-12-09 | Medtronic Advanced Energy Llc | Electrosurgical devices with wire electrode |
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AU2011332014B2 (en) | 2010-11-27 | 2016-12-22 | Securus Medical Group, Inc. | Ablation and temperature measurement devices |
US8998893B2 (en) | 2010-12-07 | 2015-04-07 | Boaz Avitall | Catheter systems for cardiac arrhythmia ablation |
US11246653B2 (en) | 2010-12-07 | 2022-02-15 | Boaz Avitall | Catheter systems for cardiac arrhythmia ablation |
US10517667B2 (en) | 2014-05-16 | 2019-12-31 | Biosense Webster (Israel) Ltd. | Catheter tip with microelectrodes |
WO2012151396A2 (en) | 2011-05-03 | 2012-11-08 | Shifamed Holdings, Llc | Steerable delivery sheaths |
US9055951B2 (en) | 2011-05-23 | 2015-06-16 | Covidien Lp | Endovascular tissue removal device |
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US8961550B2 (en) | 2012-04-17 | 2015-02-24 | Indian Wells Medical, Inc. | Steerable endoluminal punch |
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US20140121657A1 (en) * | 2012-10-26 | 2014-05-01 | Biosense Webster (Israel) Ltd. | Irrrigated ablation catheter with deformable head |
WO2014071372A1 (en) * | 2012-11-05 | 2014-05-08 | Boston Scientific Scimed, Inc. | Devices for delivering energy to body lumens |
US20140200639A1 (en) | 2013-01-16 | 2014-07-17 | Advanced Neuromodulation Systems, Inc. | Self-expanding neurostimulation leads having broad multi-electrode arrays |
US10349824B2 (en) | 2013-04-08 | 2019-07-16 | Apama Medical, Inc. | Tissue mapping and visualization systems |
CA2908517A1 (en) | 2013-04-08 | 2014-10-16 | Apama Medical, Inc. | Cardiac ablation catheters and methods of use thereof |
US10098694B2 (en) | 2013-04-08 | 2018-10-16 | Apama Medical, Inc. | Tissue ablation and monitoring thereof |
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US9204929B2 (en) | 2013-09-16 | 2015-12-08 | Biosense Webster (Israel) Ltd. | Basket catheter with deflectable spine |
US10433902B2 (en) | 2013-10-23 | 2019-10-08 | Medtronic Ardian Luxembourg S.A.R.L. | Current control methods and systems |
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WO2015192018A1 (en) | 2014-06-12 | 2015-12-17 | Iowa Approach Inc. | Method and apparatus for rapid and selective tissue ablation with cooling |
EP3154463B1 (en) | 2014-06-12 | 2019-03-27 | Farapulse, Inc. | Apparatus for rapid and selective transurethral tissue ablation |
EP3206613B1 (en) | 2014-10-14 | 2019-07-03 | Farapulse, Inc. | Apparatus for rapid and safe pulmonary vein cardiac ablation |
US10363086B2 (en) | 2014-10-31 | 2019-07-30 | Medtronic Advanced Energy Llc | Power monitoring circuitry and method for reducing leakage current in RF generators |
US9820664B2 (en) | 2014-11-20 | 2017-11-21 | Biosense Webster (Israel) Ltd. | Catheter with high density electrode spine array |
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CA2982823A1 (en) | 2015-04-24 | 2016-10-27 | Shifamed Holdings, Llc | Steerable medical devices, systems, and methods of use |
JP6113780B2 (en) * | 2015-05-07 | 2017-04-12 | イューエムセー ユトレヒト ホールディング ベースローテン フェンノートシャップ | Ablation catheter and method for electrically insulating heart tissue |
US10537259B2 (en) | 2015-06-29 | 2020-01-21 | Biosense Webster (Israel) Ltd. | Catheter having closed loop array with in-plane linear electrode portion |
US9949656B2 (en) | 2015-06-29 | 2018-04-24 | Biosense Webster (Israel) Ltd. | Catheter with stacked spine electrode assembly |
US10575742B2 (en) | 2015-06-30 | 2020-03-03 | Biosense Webster (Israel) Ltd. | Catheter having closed electrode assembly with spines of uniform length |
JP6445742B1 (en) | 2015-10-21 | 2018-12-26 | セント・ジュード・メディカル,カーディオロジー・ディヴィジョン,インコーポレイテッド | High density electrode mapping catheter |
CN108366715A (en) | 2015-11-09 | 2018-08-03 | 施菲姆德控股有限责任公司 | Steering assembly and application method for medical treatment device |
EP3376936B1 (en) | 2015-11-16 | 2024-01-03 | Boston Scientific Scimed, Inc. | Energy delivery devices |
US10172673B2 (en) | 2016-01-05 | 2019-01-08 | Farapulse, Inc. | Systems devices, and methods for delivery of pulsed electric field ablative energy to endocardial tissue |
US10660702B2 (en) | 2016-01-05 | 2020-05-26 | Farapulse, Inc. | Systems, devices, and methods for focal ablation |
US10130423B1 (en) | 2017-07-06 | 2018-11-20 | Farapulse, Inc. | Systems, devices, and methods for focal ablation |
US20170189097A1 (en) | 2016-01-05 | 2017-07-06 | Iowa Approach Inc. | Systems, apparatuses and methods for delivery of ablative energy to tissue |
EP3432820B1 (en) | 2016-05-03 | 2021-04-28 | St. Jude Medical, Cardiology Division, Inc. | Irrigated high density electrode catheter |
US11331140B2 (en) | 2016-05-19 | 2022-05-17 | Aqua Heart, Inc. | Heated vapor ablation systems and methods for treating cardiac conditions |
EP3471631A4 (en) | 2016-06-16 | 2020-03-04 | Farapulse, Inc. | Systems, apparatuses, and methods for guide wire delivery |
US11172858B2 (en) | 2016-10-28 | 2021-11-16 | St. Jude Medical, Cardiology Division, Inc. | Flexible high-density mapping catheter |
US20180192958A1 (en) * | 2017-01-06 | 2018-07-12 | Biosense Webster (Israel) Ltd. | Multi-electrode assembly with controlled folding mechanism |
US9987081B1 (en) | 2017-04-27 | 2018-06-05 | Iowa Approach, Inc. | Systems, devices, and methods for signal generation |
US10617867B2 (en) | 2017-04-28 | 2020-04-14 | Farapulse, Inc. | Systems, devices, and methods for delivery of pulsed electric field ablative energy to esophageal tissue |
EP3606420B1 (en) | 2017-07-07 | 2023-05-24 | St. Jude Medical, Cardiology Division, Inc. | Layered high density electrode mapping catheter |
US11647935B2 (en) | 2017-07-24 | 2023-05-16 | St. Jude Medical, Cardiology Division, Inc. | Masked ring electrodes |
EP3681391A1 (en) | 2017-09-12 | 2020-07-22 | Farapulse, Inc. | Systems, apparatuses, and methods for ventricular focal ablation |
EP3658054B1 (en) | 2017-10-13 | 2023-03-22 | St. Jude Medical, Cardiology Division, Inc. | Catheter with high-density mapping electrodes |
US11426111B2 (en) | 2018-03-13 | 2022-08-30 | St. Jude Medical, Cardiology Division, Inc. | Variable density mapping catheter |
CN112087980B (en) | 2018-05-07 | 2023-01-10 | 波士顿科学医学有限公司 | Systems, devices, and methods for delivering ablation energy to tissue |
CN112118798A (en) | 2018-05-07 | 2020-12-22 | 法拉普尔赛股份有限公司 | Systems, devices, and methods for filtering high voltage noise induced by pulsed electric field ablation |
CN112087978B (en) | 2018-05-07 | 2023-01-17 | 波士顿科学医学有限公司 | Epicardial ablation catheter |
WO2020039392A2 (en) | 2018-08-23 | 2020-02-27 | St. Jude Medical, Cardiology Division, Inc. | Curved high density electrode mapping catheter |
WO2020061359A1 (en) | 2018-09-20 | 2020-03-26 | Farapulse, Inc. | Systems, apparatuses, and methods for delivery of pulsed electric field ablative energy to endocardial tissue |
CN109621198B (en) * | 2018-12-25 | 2023-04-18 | 创领心律管理医疗器械(上海)有限公司 | Medical device and fixing device of slender body medical equipment thereof |
US11850051B2 (en) | 2019-04-30 | 2023-12-26 | Biosense Webster (Israel) Ltd. | Mapping grid with high density electrode array |
US10625080B1 (en) | 2019-09-17 | 2020-04-21 | Farapulse, Inc. | Systems, apparatuses, and methods for detecting ectopic electrocardiogram signals during pulsed electric field ablation |
US11065047B2 (en) | 2019-11-20 | 2021-07-20 | Farapulse, Inc. | Systems, apparatuses, and methods for protecting electronic components from high power noise induced by high voltage pulses |
US11497541B2 (en) | 2019-11-20 | 2022-11-15 | Boston Scientific Scimed, Inc. | Systems, apparatuses, and methods for protecting electronic components from high power noise induced by high voltage pulses |
US10842572B1 (en) | 2019-11-25 | 2020-11-24 | Farapulse, Inc. | Methods, systems, and apparatuses for tracking ablation devices and generating lesion lines |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010894A (en) * | 1988-01-07 | 1991-04-30 | Edhag Knut O | Intravascular electrode lead usable for cardiac defibrillation |
US5184621A (en) * | 1991-05-29 | 1993-02-09 | C. R. Bard, Inc. | Steerable guidewire having electrodes for measuring vessel cross-section and blood flow |
US5313943A (en) * | 1992-09-25 | 1994-05-24 | Ep Technologies, Inc. | Catheters and methods for performing cardiac diagnosis and treatment |
US5911720A (en) * | 1996-11-26 | 1999-06-15 | Ep Technologies, Inc. | Ablation catheter with segmented tip |
US6032674A (en) * | 1992-01-07 | 2000-03-07 | Arthrocare Corporation | Systems and methods for myocardial revascularization |
US6053937A (en) * | 1995-08-15 | 2000-04-25 | Rita Medical Systems, Inc. | Multiple electrode ablation apparatus and method with cooling element |
US6063082A (en) * | 1997-11-04 | 2000-05-16 | Scimed Life Systems, Inc. | Percutaneous myocardial revascularization basket delivery system and radiofrequency therapeutic device |
US6071282A (en) * | 1994-10-07 | 2000-06-06 | Ep Technologies, Inc. | Structures for deploying electrode elements |
US6319251B1 (en) * | 1998-09-24 | 2001-11-20 | Hosheng Tu | Medical device and methods for treating intravascular restenosis |
US6952615B2 (en) * | 2001-09-28 | 2005-10-04 | Shutaro Satake | Radiofrequency thermal balloon catheter |
Family Cites Families (376)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3516412A (en) * | 1965-08-16 | 1970-06-23 | Electro Catheter Corp | Bipolar electrode having irregularity at inserting end thereof and method of insertion |
US3951136A (en) | 1973-10-10 | 1976-04-20 | Vital Signs, Inc. | Multiple purpose esophageal probe |
US5904680A (en) * | 1992-09-25 | 1999-05-18 | Ep Technologies, Inc. | Multiple electrode support structures having optimal bio-mechanical characteristics |
US4017903A (en) | 1975-08-27 | 1977-04-12 | Hewlett-Packard Company | Pulse code modulation recording and/or reproducing system |
US4112952A (en) | 1977-02-11 | 1978-09-12 | The United States Of America As Represented By The Secretary Of Health, Education And Welfare | Electrode for artificial pacemaker |
US4411266A (en) | 1980-09-24 | 1983-10-25 | Cosman Eric R | Thermocouple radio frequency lesion electrode |
US4432377A (en) * | 1982-01-29 | 1984-02-21 | Medtronic, Inc. | Biomedical lead with ring electrode and method of making same |
US4660571A (en) * | 1985-07-18 | 1987-04-28 | Cordis Corporation | Percutaneous lead having radially adjustable electrode |
US4699147A (en) | 1985-09-25 | 1987-10-13 | Cordis Corporation | Intraventricular multielectrode cardial mapping probe and method for using same |
US4785815A (en) | 1985-10-23 | 1988-11-22 | Cordis Corporation | Apparatus for locating and ablating cardiac conduction pathways |
US5231995A (en) | 1986-11-14 | 1993-08-03 | Desai Jawahar M | Method for catheter mapping and ablation |
US4940064A (en) | 1986-11-14 | 1990-07-10 | Desai Jawahar M | Catheter for mapping and ablation and method therefor |
US5365926A (en) | 1986-11-14 | 1994-11-22 | Desai Jawahar M | Catheter for mapping and ablation and method therefor |
US5215103A (en) | 1986-11-14 | 1993-06-01 | Desai Jawahar M | Catheter for mapping and ablation and method therefor |
US6738673B2 (en) | 1986-11-14 | 2004-05-18 | Jawahar M. Desai | Method for catheter mapping and ablation |
US4882777A (en) | 1987-04-17 | 1989-11-21 | Narula Onkar S | Catheter |
US4869248A (en) | 1987-04-17 | 1989-09-26 | Narula Onkar S | Method and apparatus for localized thermal ablation |
US4920980A (en) * | 1987-09-14 | 1990-05-01 | Cordis Corporation | Catheter with controllable tip |
SU1512622A1 (en) | 1987-11-12 | 1989-10-07 | Научно-Исследовательский Институт Онкологии И Медицинской Радиологии Мз Бсср | Electrode device for hyperthermia of hollow organs |
US4860769A (en) | 1987-11-12 | 1989-08-29 | Thomas J. Fogarty | Implantable defibrillation electrode |
SU1544396A1 (en) | 1987-12-08 | 1990-02-23 | 1-Й Ленинградский Медицинский Институт Им.Акад.И.П.Павлова | Electrodestruction device |
US5588432A (en) | 1988-03-21 | 1996-12-31 | Boston Scientific Corporation | Catheters for imaging, sensing electrical potentials, and ablating tissue |
US4907589A (en) | 1988-04-29 | 1990-03-13 | Cosman Eric R | Automatic over-temperature control apparatus for a therapeutic heating device |
US4896671A (en) * | 1988-08-01 | 1990-01-30 | C. R. Bard, Inc. | Catheter with contoured ablation electrode |
US4966597A (en) | 1988-11-04 | 1990-10-30 | Cosman Eric R | Thermometric cardiac tissue ablation electrode with ultra-sensitive temperature detection |
FR2639238B1 (en) | 1988-11-21 | 1991-02-22 | Technomed Int Sa | APPARATUS FOR SURGICAL TREATMENT OF TISSUES BY HYPERTHERMIA, PREFERABLY THE PROSTATE, COMPRISING MEANS OF THERMAL PROTECTION COMPRISING PREFERABLY RADIOREFLECTIVE SCREEN MEANS |
US5230349A (en) | 1988-11-25 | 1993-07-27 | Sensor Electronics, Inc. | Electrical heating catheter |
US4945912A (en) | 1988-11-25 | 1990-08-07 | Sensor Electronics, Inc. | Catheter with radiofrequency heating applicator |
SU1690786A1 (en) | 1989-06-30 | 1991-11-15 | Каунасский Медицинский Институт | Electrocardial electrode |
US5016808A (en) * | 1989-09-14 | 1991-05-21 | Cardiac Pacemakers, Inc. | Implantable tapered spiral endocardial lead for use in internal defibrillation |
US5820591A (en) | 1990-02-02 | 1998-10-13 | E. P. Technologies, Inc. | Assemblies for creating compound curves in distal catheter regions |
US5083565A (en) * | 1990-08-03 | 1992-01-28 | Everest Medical Corporation | Electrosurgical instrument for ablating endocardial tissue |
US5100423A (en) | 1990-08-21 | 1992-03-31 | Medical Engineering & Development Institute, Inc. | Ablation catheter |
US5156151A (en) * | 1991-02-15 | 1992-10-20 | Cardiac Pathways Corporation | Endocardial mapping and ablation system and catheter probe |
US5465717A (en) | 1991-02-15 | 1995-11-14 | Cardiac Pathways Corporation | Apparatus and Method for ventricular mapping and ablation |
US5345936A (en) | 1991-02-15 | 1994-09-13 | Cardiac Pathways Corporation | Apparatus with basket assembly for endocardial mapping |
US5228442A (en) | 1991-02-15 | 1993-07-20 | Cardiac Pathways Corporation | Method for mapping, ablation, and stimulation using an endocardial catheter |
US5327889A (en) | 1992-12-01 | 1994-07-12 | Cardiac Pathways Corporation | Mapping and ablation catheter with individually deployable arms and method |
US20010051803A1 (en) | 1991-07-05 | 2001-12-13 | Desai Jawahar M. | Device and method for multi-phase radio-frequency ablation |
US5620481A (en) | 1991-07-05 | 1997-04-15 | Desai; Jawahar M. | Device for multi-phase radio-frequency ablation |
US5383917A (en) | 1991-07-05 | 1995-01-24 | Jawahar M. Desai | Device and method for multi-phase radio-frequency ablation |
AU3128593A (en) | 1991-11-08 | 1993-06-07 | Ep Technologies Inc | Radiofrequency ablation with phase sensitive power detection |
US5699796A (en) | 1993-01-29 | 1997-12-23 | Cardima, Inc. | High resolution intravascular signal detection |
US5239999A (en) | 1992-03-27 | 1993-08-31 | Cardiac Pathways Corporation | Helical endocardial catheter probe |
AU4280393A (en) | 1992-04-10 | 1993-11-18 | Cardiorhythm | Intracardiac electrical potential reference catheter |
US5318525A (en) | 1992-04-10 | 1994-06-07 | Medtronic Cardiorhythm | Steerable electrode catheter |
US5231987A (en) | 1992-04-10 | 1993-08-03 | Random Technologies, Inc. | Time domain reflectometer-integrity testing system and method for implantable electrode |
AU4026793A (en) | 1992-04-10 | 1993-11-18 | Cardiorhythm | Shapable handle for steerable electrode catheter |
US5573533A (en) | 1992-04-10 | 1996-11-12 | Medtronic Cardiorhythm | Method and system for radiofrequency ablation of cardiac tissue |
US5540681A (en) | 1992-04-10 | 1996-07-30 | Medtronic Cardiorhythm | Method and system for radiofrequency ablation of tissue |
US5281213A (en) | 1992-04-16 | 1994-01-25 | Implemed, Inc. | Catheter for ice mapping and ablation |
US5255679A (en) | 1992-06-02 | 1993-10-26 | Cardiac Pathways Corporation | Endocardial catheter for mapping and/or ablation with an expandable basket structure having means for providing selective reinforcement and pressure sensing mechanism for use therewith, and method |
US5281218A (en) | 1992-06-05 | 1994-01-25 | Cardiac Pathways Corporation | Catheter having needle electrode for radiofrequency ablation |
US5324284A (en) * | 1992-06-05 | 1994-06-28 | Cardiac Pathways, Inc. | Endocardial mapping and ablation system utilizing a separately controlled ablation catheter and method |
US5782239A (en) | 1992-06-30 | 1998-07-21 | Cordis Webster, Inc. | Unique electrode configurations for cardiovascular electrode catheter with built-in deflection method and central puller wire |
US5772590A (en) | 1992-06-30 | 1998-06-30 | Cordis Webster, Inc. | Cardiovascular catheter with laterally stable basket-shaped electrode array with puller wire |
US5411025A (en) | 1992-06-30 | 1995-05-02 | Cordis Webster, Inc. | Cardiovascular catheter with laterally stable basket-shaped electrode array |
US5772597A (en) | 1992-09-14 | 1998-06-30 | Sextant Medical Corporation | Surgical tool end effector |
US5309910A (en) | 1992-09-25 | 1994-05-10 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
US5471982A (en) | 1992-09-29 | 1995-12-05 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
US6086581A (en) * | 1992-09-29 | 2000-07-11 | Ep Technologies, Inc. | Large surface cardiac ablation catheter that assumes a low profile during introduction into the heart |
US5342357A (en) | 1992-11-13 | 1994-08-30 | American Cardiac Ablation Co., Inc. | Fluid cooled electrosurgical cauterization system |
US5334193A (en) | 1992-11-13 | 1994-08-02 | American Cardiac Ablation Co., Inc. | Fluid cooled ablation catheter |
CA2109980A1 (en) | 1992-12-01 | 1994-06-02 | Mir A. Imran | Steerable catheter with adjustable bend location and/or radius and method |
US5389073A (en) | 1992-12-01 | 1995-02-14 | Cardiac Pathways Corporation | Steerable catheter with adjustable bend location |
US5545161A (en) | 1992-12-01 | 1996-08-13 | Cardiac Pathways Corporation | Catheter for RF ablation having cooled electrode with electrically insulated sleeve |
US5330466A (en) * | 1992-12-01 | 1994-07-19 | Cardiac Pathways Corporation | Control mechanism and system and method for steering distal extremity of a flexible elongate member |
US5348554A (en) | 1992-12-01 | 1994-09-20 | Cardiac Pathways Corporation | Catheter for RF ablation with cooled electrode |
US5391147A (en) * | 1992-12-01 | 1995-02-21 | Cardiac Pathways Corporation | Steerable catheter with adjustable bend location and/or radius and method |
US5706809A (en) | 1993-01-29 | 1998-01-13 | Cardima, Inc. | Method and system for using multiple intravascular sensing devices to detect electrical activity |
PT681451E (en) | 1993-01-29 | 2002-02-28 | Medtronic Inc | MULTIPLE DEVICES OF INTRAVASCULAR DETECTION OF ELECTRICAL ACTIVITY |
US5645082A (en) | 1993-01-29 | 1997-07-08 | Cardima, Inc. | Intravascular method and system for treating arrhythmia |
US6522905B2 (en) | 1993-03-11 | 2003-02-18 | Jawahar M. Desai | Apparatus and method for cardiac ablation |
US5657755A (en) | 1993-03-11 | 1997-08-19 | Desai; Jawahar M. | Apparatus and method for cardiac ablation |
US5433198A (en) | 1993-03-11 | 1995-07-18 | Desai; Jawahar M. | Apparatus and method for cardiac ablation |
US5364352A (en) | 1993-03-12 | 1994-11-15 | Heart Rhythm Technologies, Inc. | Catheter for electrophysiological procedures |
US6233491B1 (en) * | 1993-03-16 | 2001-05-15 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
US5893847A (en) * | 1993-03-16 | 1999-04-13 | Ep Technologies, Inc. | Multiple electrode support structures with slotted hub and hoop spline elements |
DK0696176T3 (en) | 1993-04-28 | 2002-07-22 | Biosense Webster Inc | Electrophysiological catheter with pre-curved tip |
DE9422383U1 (en) * | 1993-05-10 | 2001-03-22 | Thapliyal & Eggers | Surgical cutting device |
WO1994027670A1 (en) * | 1993-06-02 | 1994-12-08 | Cardiac Pathways Corporation | Catheter having tip with fixation means |
USD351652S (en) | 1993-06-21 | 1994-10-18 | Ep Technologies, Inc. | Steerable medical catheter handle |
CA2165829A1 (en) | 1993-07-01 | 1995-01-19 | John E. Abele | Imaging, electrical potential sensing, and ablation catheters |
US5630837A (en) | 1993-07-01 | 1997-05-20 | Boston Scientific Corporation | Acoustic ablation |
IL116699A (en) | 1996-01-08 | 2001-09-13 | Biosense Ltd | Method of constructing cardiac map |
US5487757A (en) * | 1993-07-20 | 1996-01-30 | Medtronic Cardiorhythm | Multicurve deflectable catheter |
US5545200A (en) | 1993-07-20 | 1996-08-13 | Medtronic Cardiorhythm | Steerable electrophysiology catheter |
US5928191A (en) * | 1993-07-30 | 1999-07-27 | E.P. Technologies, Inc. | Variable curve electrophysiology catheter |
US5342295A (en) | 1993-09-24 | 1994-08-30 | Cardiac Pathways Corporation | Catheter assembly, catheter and multi-port introducer for use therewith |
US5607462A (en) * | 1993-09-24 | 1997-03-04 | Cardiac Pathways Corporation | Catheter assembly, catheter and multi-catheter introducer for use therewith |
US5400783A (en) | 1993-10-12 | 1995-03-28 | Cardiac Pathways Corporation | Endocardial mapping apparatus with rotatable arm and method |
US6129724A (en) | 1993-10-14 | 2000-10-10 | Ep Technologies, Inc. | Systems and methods for forming elongated lesion patterns in body tissue using straight or curvilinear electrode elements |
US5582609A (en) * | 1993-10-14 | 1996-12-10 | Ep Technologies, Inc. | Systems and methods for forming large lesions in body tissue using curvilinear electrode elements |
US5673695A (en) | 1995-08-02 | 1997-10-07 | Ep Technologies, Inc. | Methods for locating and ablating accessory pathways in the heart |
EP0754075B1 (en) | 1993-10-14 | 2006-03-15 | Boston Scientific Limited | Electrode elements for forming lesion patterns |
US6146379A (en) | 1993-10-15 | 2000-11-14 | Ep Technologies, Inc. | Systems and methods for creating curvilinear lesions in body tissue |
WO1995010320A1 (en) * | 1993-10-15 | 1995-04-20 | Ep Technologies, Inc. | Device for lengthening cardiac conduction pathways |
US5575810A (en) | 1993-10-15 | 1996-11-19 | Ep Technologies, Inc. | Composite structures and methods for ablating tissue to form complex lesion patterns in the treatment of cardiac conditions and the like |
US6001093A (en) | 1993-10-15 | 1999-12-14 | Ep Technologies, Inc. | Systems and methods for creating long, thin lesions in body tissue |
WO1995010225A1 (en) * | 1993-10-15 | 1995-04-20 | Ep Technologies, Inc. | Multiple electrode element for mapping and ablating |
US5545193A (en) | 1993-10-15 | 1996-08-13 | Ep Technologies, Inc. | Helically wound radio-frequency emitting electrodes for creating lesions in body tissue |
WO1995010978A1 (en) * | 1993-10-19 | 1995-04-27 | Ep Technologies, Inc. | Segmented electrode assemblies for ablation of tissue |
US5433739A (en) | 1993-11-02 | 1995-07-18 | Sluijter; Menno E. | Method and apparatus for heating an intervertebral disc for relief of back pain |
US5575766A (en) | 1993-11-03 | 1996-11-19 | Daig Corporation | Process for the nonsurgical mapping and treatment of atrial arrhythmia using catheters guided by shaped guiding introducers |
US5536267A (en) | 1993-11-08 | 1996-07-16 | Zomed International | Multiple electrode ablation apparatus |
DE69433213T2 (en) | 1993-11-10 | 2004-05-06 | Medtronic, Inc., Minneapolis | Catheter with electrode arrangement |
US5487385A (en) | 1993-12-03 | 1996-01-30 | Avitall; Boaz | Atrial mapping and ablation catheter system |
US6241725B1 (en) | 1993-12-15 | 2001-06-05 | Sherwood Services Ag | High frequency thermal ablation of cancerous tumors and functional targets with image data assistance |
US5462521A (en) | 1993-12-21 | 1995-10-31 | Angeion Corporation | Fluid cooled and perfused tip for a catheter |
US5492119A (en) * | 1993-12-22 | 1996-02-20 | Heart Rhythm Technologies, Inc. | Catheter tip stabilizing apparatus |
US6099524A (en) | 1994-01-28 | 2000-08-08 | Cardiac Pacemakers, Inc. | Electrophysiological mapping and ablation catheter and method |
WO1995020344A1 (en) | 1994-01-28 | 1995-08-03 | Ep Technologies, Inc. | System for examining cardiac tissue electrical characteristics |
US5462545A (en) | 1994-01-31 | 1995-10-31 | New England Medical Center Hospitals, Inc. | Catheter electrodes |
US6165169A (en) | 1994-03-04 | 2000-12-26 | Ep Technologies, Inc. | Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays |
US5968040A (en) | 1994-03-04 | 1999-10-19 | Ep Technologies, Inc. | Systems and methods using asymmetric multiple electrode arrays |
US6216043B1 (en) | 1994-03-04 | 2001-04-10 | Ep Technologies, Inc. | Asymmetric multiple electrode support structures |
US5584830A (en) | 1994-03-30 | 1996-12-17 | Medtronic Cardiorhythm | Method and system for radiofrequency ablation of cardiac tissue |
US5598848A (en) * | 1994-03-31 | 1997-02-04 | Ep Technologies, Inc. | Systems and methods for positioning multiple electrode structures in electrical contact with the myocardium |
US5882333A (en) * | 1994-05-13 | 1999-03-16 | Cardima, Inc. | Catheter with deflectable distal section |
US6056744A (en) * | 1994-06-24 | 2000-05-02 | Conway Stuart Medical, Inc. | Sphincter treatment apparatus |
WO1996000039A1 (en) | 1994-06-27 | 1996-01-04 | Ep Technologies, Inc. | Systems and methods for sensing temperature within the body |
US5735846A (en) | 1994-06-27 | 1998-04-07 | Ep Technologies, Inc. | Systems and methods for ablating body tissue using predicted maximum tissue temperature |
EP0768841B1 (en) | 1994-06-27 | 2003-12-03 | Boston Scientific Limited | System for controlling tissue ablation using temperature sensors |
US5680860A (en) | 1994-07-07 | 1997-10-28 | Cardiac Pathways Corporation | Mapping and/or ablation catheter with coilable distal extremity and method for using same |
US5797905A (en) | 1994-08-08 | 1998-08-25 | E. P. Technologies Inc. | Flexible tissue ablation elements for making long lesions |
US5810802A (en) | 1994-08-08 | 1998-09-22 | E.P. Technologies, Inc. | Systems and methods for controlling tissue ablation using multiple temperature sensing elements |
WO1996010961A1 (en) | 1994-10-07 | 1996-04-18 | Ep Technologies, Inc. | Flexible structures for supporting electrode elements |
US6071274A (en) * | 1996-12-19 | 2000-06-06 | Ep Technologies, Inc. | Loop structures for supporting multiple electrode elements |
US5876336A (en) * | 1994-10-11 | 1999-03-02 | Ep Technologies, Inc. | Systems and methods for guiding movable electrode elements within multiple-electrode structure |
US5722401A (en) | 1994-10-19 | 1998-03-03 | Cardiac Pathways Corporation | Endocardial mapping and/or ablation catheter probe |
US5857997A (en) | 1994-11-14 | 1999-01-12 | Heart Rhythm Technologies, Inc. | Catheter for electrophysiological procedures |
US5630425A (en) | 1995-02-17 | 1997-05-20 | Ep Technologies, Inc. | Systems and methods for adaptive filtering artifacts from composite signals |
US5595183A (en) * | 1995-02-17 | 1997-01-21 | Ep Technologies, Inc. | Systems and methods for examining heart tissue employing multiple electrode structures and roving electrodes |
US5711305A (en) | 1995-02-17 | 1998-01-27 | Ep Technologies, Inc. | Systems and methods for acquiring endocardially or epicardially paced electrocardiograms |
US5601088A (en) | 1995-02-17 | 1997-02-11 | Ep Technologies, Inc. | Systems and methods for filtering artifacts from composite signals |
US5897553A (en) | 1995-11-02 | 1999-04-27 | Medtronic, Inc. | Ball point fluid-assisted electrocautery device |
US5882206A (en) | 1995-03-29 | 1999-03-16 | Gillio; Robert G. | Virtual surgery system |
EP0830091B1 (en) | 1995-04-20 | 2003-10-29 | Jawahar M. Desai | Apparatus for cardiac mapping and ablation |
AU5487696A (en) | 1995-04-20 | 1996-11-07 | Jawahar M. Desai | Apparatus for cardiac ablation |
AU5558096A (en) * | 1995-05-01 | 1996-11-21 | Medtronic Cardiorhythm | Dual curve ablation catheter and method |
CA2217024A1 (en) | 1995-05-01 | 1996-11-21 | Ep Technologies, Inc. | Systems and methods for sensing sub-surface temperatures in body tissue during ablation with actively cooled electrodes |
WO1996034570A1 (en) | 1995-05-01 | 1996-11-07 | Ep Technologies, Inc. | Systems and methods for obtaining desired lesion characteristics while ablating body tissue |
US5596995A (en) | 1995-05-02 | 1997-01-28 | Heart Rhythm Technologies, Inc. | Biomedical device having a temperature sensing system |
WO1996034567A1 (en) | 1995-05-02 | 1996-11-07 | Heart Rhythm Technologies, Inc. | System for controlling the energy delivered to a patient for ablation |
US5666970A (en) | 1995-05-02 | 1997-09-16 | Heart Rhythm Technologies, Inc. | Locking mechanism for catheters |
US5681280A (en) | 1995-05-02 | 1997-10-28 | Heart Rhythm Technologies, Inc. | Catheter control system |
US5741320A (en) * | 1995-05-02 | 1998-04-21 | Heart Rhythm Technologies, Inc. | Catheter control system having a pulley |
USD381076S (en) | 1995-05-02 | 1997-07-15 | Heart Rhythm Technologies, Inc. | Manipulation handle |
US5735280A (en) | 1995-05-02 | 1998-04-07 | Heart Rhythm Technologies, Inc. | Ultrasound energy delivery system and method |
US5606974A (en) | 1995-05-02 | 1997-03-04 | Heart Rhythm Technologies, Inc. | Catheter having ultrasonic device |
WO1996034560A1 (en) | 1995-05-02 | 1996-11-07 | Heart Rhythm Technologies, Inc. | Catheter with expandable probe |
US5782760A (en) | 1995-05-23 | 1998-07-21 | Cardima, Inc. | Over-the-wire EP catheter |
US5895355A (en) | 1995-05-23 | 1999-04-20 | Cardima, Inc. | Over-the-wire EP catheter |
US6002956A (en) | 1995-05-23 | 1999-12-14 | Cardima, Inc. | Method of treating using an over-the-wire EP catheter |
US5857464A (en) | 1995-06-07 | 1999-01-12 | Desai; Jawahar M. | Catheter for media injection |
JPH11507251A (en) | 1995-06-07 | 1999-06-29 | カーディマ・インコーポレイテッド | Guide catheter for coronary sinus |
US6293943B1 (en) | 1995-06-07 | 2001-09-25 | Ep Technologies, Inc. | Tissue heating and ablation systems and methods which predict maximum tissue temperature |
US6052612A (en) | 1995-06-07 | 2000-04-18 | Desai; Jawahar M. | Catheter for media injection |
WO1996039967A1 (en) | 1995-06-07 | 1996-12-19 | Ep Technologies, Inc. | Tissue heating and ablation systems and methods which predict maximum tissue temperature |
US6132438A (en) | 1995-06-07 | 2000-10-17 | Ep Technologies, Inc. | Devices for installing stasis reducing means in body tissue |
US5702438A (en) | 1995-06-08 | 1997-12-30 | Avitall; Boaz | Expandable recording and ablation catheter system |
US5697925A (en) | 1995-06-09 | 1997-12-16 | Engineering & Research Associates, Inc. | Apparatus and method for thermal ablation |
US6023638A (en) | 1995-07-28 | 2000-02-08 | Scimed Life Systems, Inc. | System and method for conducting electrophysiological testing using high-voltage energy pulses to stun tissue |
US5724985A (en) | 1995-08-02 | 1998-03-10 | Pacesetter, Inc. | User interface for an implantable medical device using an integrated digitizer display screen |
US5827272A (en) | 1995-08-07 | 1998-10-27 | Medtronic Cardiorhythm | Simplified torquing electrode catheter |
US6283951B1 (en) | 1996-10-11 | 2001-09-04 | Transvascular, Inc. | Systems and methods for delivering drugs to selected locations within the body |
WO1997015919A1 (en) | 1995-10-25 | 1997-05-01 | Iomega Corporation | Molded actuator crash stops |
US5716389A (en) | 1995-11-13 | 1998-02-10 | Walinsky; Paul | Cardiac ablation catheter arrangement with movable guidewire |
WO1997017893A1 (en) | 1995-11-13 | 1997-05-22 | Heart Rhythm Technologies, Inc. | System and method for analyzing electrogram waveforms |
US5733323A (en) | 1995-11-13 | 1998-03-31 | Cordis Corporation | Electrically conductive unipolar vascular sheath |
US5837001A (en) | 1995-12-08 | 1998-11-17 | C. R. Bard | Radio frequency energy delivery system for multipolar electrode catheters |
NL1001890C2 (en) * | 1995-12-13 | 1997-06-17 | Cordis Europ | Catheter with plate-shaped electrode array. |
US5891135A (en) * | 1996-01-19 | 1999-04-06 | Ep Technologies, Inc. | Stem elements for securing tubing and electrical wires to expandable-collapsible electrode structures |
WO1997025918A1 (en) | 1996-01-19 | 1997-07-24 | Ep Technologies, Inc. | Electrode structures formed from flexible, porous, or woven materials |
US5925038A (en) | 1996-01-19 | 1999-07-20 | Ep Technologies, Inc. | Expandable-collapsible electrode structures for capacitive coupling to tissue |
WO1997025917A1 (en) | 1996-01-19 | 1997-07-24 | Ep Technologies, Inc. | Multi-function electrode structures for electrically analyzing and heating body tissue |
US6475213B1 (en) | 1996-01-19 | 2002-11-05 | Ep Technologies, Inc. | Method of ablating body tissue |
US5895417A (en) * | 1996-03-06 | 1999-04-20 | Cardiac Pathways Corporation | Deflectable loop design for a linear lesion ablation apparatus |
US5800482A (en) | 1996-03-06 | 1998-09-01 | Cardiac Pathways Corporation | Apparatus and method for linear lesion ablation |
WO1997036541A1 (en) | 1996-04-02 | 1997-10-09 | Cordis Webster, Inc. | Electrophysiology catheter with a bullseye electrode |
US6063077A (en) * | 1996-04-08 | 2000-05-16 | Cardima, Inc. | Linear ablation device and assembly |
US6302880B1 (en) | 1996-04-08 | 2001-10-16 | Cardima, Inc. | Linear ablation assembly |
US5863291A (en) * | 1996-04-08 | 1999-01-26 | Cardima, Inc. | Linear ablation assembly |
US6813520B2 (en) | 1996-04-12 | 2004-11-02 | Novacept | Method for ablating and/or coagulating tissue using moisture transport |
US5769880A (en) * | 1996-04-12 | 1998-06-23 | Novacept | Moisture transport system for contact electrocoagulation |
AUPN957296A0 (en) | 1996-04-30 | 1996-05-23 | Cardiac Crc Nominees Pty Limited | A system for simultaneous unipolar multi-electrode ablation |
US5766152A (en) | 1996-08-15 | 1998-06-16 | Cardima, Inc. | Intraluminal delivery of tissue lysing medium |
US5697928A (en) | 1996-09-23 | 1997-12-16 | Uab Research Foundation | Cardic electrode catheter |
US5820568A (en) | 1996-10-15 | 1998-10-13 | Cardiac Pathways Corporation | Apparatus and method for aiding in the positioning of a catheter |
US5891027A (en) * | 1996-10-21 | 1999-04-06 | Irvine Biomedical, Inc. | Cardiovascular catheter system with an inflatable soft tip |
US5904651A (en) | 1996-10-28 | 1999-05-18 | Ep Technologies, Inc. | Systems and methods for visualizing tissue during diagnostic or therapeutic procedures |
US6096036A (en) | 1998-05-05 | 2000-08-01 | Cardiac Pacemakers, Inc. | Steerable catheter with preformed distal shape and method for use |
US5893885A (en) | 1996-11-01 | 1999-04-13 | Cordis Webster, Inc. | Multi-electrode ablation catheter |
US5954719A (en) | 1996-12-11 | 1999-09-21 | Irvine Biomedical, Inc. | System for operating a RF ablation generator |
US5782828A (en) | 1996-12-11 | 1998-07-21 | Irvine Biomedical, Inc. | Ablation catheter with multiple flexible curves |
US6332880B1 (en) | 1996-12-19 | 2001-12-25 | Ep Technologies, Inc. | Loop structures for supporting multiple electrode elements |
US6071279A (en) | 1996-12-19 | 2000-06-06 | Ep Technologies, Inc. | Branched structures for supporting multiple electrode elements |
US6048329A (en) * | 1996-12-19 | 2000-04-11 | Ep Technologies, Inc. | Catheter distal assembly with pull wires |
US6076012A (en) | 1996-12-19 | 2000-06-13 | Ep Technologies, Inc. | Structures for supporting porous electrode elements |
US5910129A (en) * | 1996-12-19 | 1999-06-08 | Ep Technologies, Inc. | Catheter distal assembly with pull wires |
AU5722198A (en) | 1996-12-20 | 1998-07-17 | Ep Technologies Inc | Unified switching system for electrophysiological stimulation and signal recording and analysis |
US5906605A (en) * | 1997-01-10 | 1999-05-25 | Cardiac Pathways Corporation | Torquable guiding catheter for basket deployment and method |
US5913854A (en) | 1997-02-04 | 1999-06-22 | Medtronic, Inc. | Fluid cooled ablation catheter and method for making |
US5916213A (en) * | 1997-02-04 | 1999-06-29 | Medtronic, Inc. | Systems and methods for tissue mapping and ablation |
US5873865A (en) | 1997-02-07 | 1999-02-23 | Eclipse Surgical Technologies, Inc. | Spiral catheter with multiple guide holes |
US5897554A (en) * | 1997-03-01 | 1999-04-27 | Irvine Biomedical, Inc. | Steerable catheter having a loop electrode |
US5814064A (en) | 1997-03-06 | 1998-09-29 | Scimed Life Systems, Inc. | Distal protection device |
US5916163A (en) | 1997-03-07 | 1999-06-29 | Ep Technologies, Inc. | Graphical user interface for use with multiple electrode catheters |
US6625482B1 (en) | 1998-03-06 | 2003-09-23 | Ep Technologies, Inc. | Graphical user interface for use with multiple electrode catheters |
US6245067B1 (en) | 1997-04-16 | 2001-06-12 | Irvine Biomedical, Inc. | Ablation device and methods having perpendicular electrodes |
US6012457A (en) | 1997-07-08 | 2000-01-11 | The Regents Of The University Of California | Device and method for forming a circumferential conduction block in a pulmonary vein |
US5792140A (en) | 1997-05-15 | 1998-08-11 | Irvine Biomedical, Inc. | Catheter having cooled multiple-needle electrode |
US5941845A (en) | 1997-08-05 | 1999-08-24 | Irvine Biomedical, Inc. | Catheter having multiple-needle electrode and methods thereof |
US5849028A (en) | 1997-05-16 | 1998-12-15 | Irvine Biomedical, Inc. | Catheter and method for radiofrequency ablation of cardiac tissue |
US6050992A (en) | 1997-05-19 | 2000-04-18 | Radiotherapeutics Corporation | Apparatus and method for treating tissue with multiple electrodes |
US6217576B1 (en) | 1997-05-19 | 2001-04-17 | Irvine Biomedical Inc. | Catheter probe for treating focal atrial fibrillation in pulmonary veins |
US5893884A (en) | 1997-05-19 | 1999-04-13 | Irvine Biomedical, Inc. | Catheter system having rollable electrode means |
US6241726B1 (en) * | 1997-05-21 | 2001-06-05 | Irvine Biomedical, Inc. | Catheter system having a tip section with fixation means |
US5891137A (en) * | 1997-05-21 | 1999-04-06 | Irvine Biomedical, Inc. | Catheter system having a tip with fixation means |
US5876399A (en) * | 1997-05-28 | 1999-03-02 | Irvine Biomedical, Inc. | Catheter system and methods thereof |
US5782900A (en) | 1997-06-23 | 1998-07-21 | Irvine Biomedical, Inc. | Catheter system having safety means |
US6251109B1 (en) | 1997-06-27 | 2001-06-26 | Daig Corporation | Process and device for the treatment of atrial arrhythmia |
US5997532A (en) | 1997-07-03 | 1999-12-07 | Cardiac Pathways Corporation | Ablation catheter tip with a buffer layer covering the electrode |
US6241666B1 (en) * | 1997-07-03 | 2001-06-05 | Cardiac Pathways Corp. | Ablation catheter tip with a buffer layer covering the electrode |
US6652515B1 (en) | 1997-07-08 | 2003-11-25 | Atrionix, Inc. | Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall |
IL133901A (en) | 1997-07-08 | 2005-09-25 | Univ Emory | Circumferential ablation device assembly and method |
US6500174B1 (en) | 1997-07-08 | 2002-12-31 | Atrionix, Inc. | Circumferential ablation device assembly and methods of use and manufacture providing an ablative circumferential band along an expandable member |
US6966908B2 (en) | 1997-07-08 | 2005-11-22 | Atrionix, Inc. | Tissue ablation device assembly and method for electrically isolating a pulmonary vein ostium from an atrial wall |
US6080151A (en) | 1997-07-21 | 2000-06-27 | Daig Corporation | Ablation catheter |
US5891138A (en) | 1997-08-11 | 1999-04-06 | Irvine Biomedical, Inc. | Catheter system having parallel electrodes |
US6123699A (en) | 1997-09-05 | 2000-09-26 | Cordis Webster, Inc. | Omni-directional steerable catheter |
US6554794B1 (en) * | 1997-09-24 | 2003-04-29 | Richard L. Mueller | Non-deforming deflectable multi-lumen catheter |
US6086532A (en) | 1997-09-26 | 2000-07-11 | Ep Technologies, Inc. | Systems for recording use of structures deployed in association with heart tissue |
US6071281A (en) | 1998-05-05 | 2000-06-06 | Ep Technologies, Inc. | Surgical method and apparatus for positioning a diagnostic or therapeutic element within the body and remote power control unit for use with same |
US5935063A (en) | 1997-10-29 | 1999-08-10 | Irvine Biomedical, Inc. | Electrode catheter system and methods thereof |
US6120476A (en) | 1997-12-01 | 2000-09-19 | Cordis Webster, Inc. | Irrigated tip catheter |
US6200315B1 (en) | 1997-12-18 | 2001-03-13 | Medtronic, Inc. | Left atrium ablation catheter |
US6358245B1 (en) | 1998-02-19 | 2002-03-19 | Curon Medical, Inc. | Graphical user interface for association with an electrode structure deployed in contact with a tissue region |
US5951471A (en) | 1998-03-09 | 1999-09-14 | Irvine Biomedical, Inc. | Catheter-based coronary sinus mapping and ablation |
US6167291A (en) | 1998-03-12 | 2000-12-26 | Cardima, Inc. | Protected pin connector for an electrophysiology catheter |
US6106460A (en) | 1998-03-26 | 2000-08-22 | Scimed Life Systems, Inc. | Interface for controlling the display of images of diagnostic or therapeutic instruments in interior body regions and related data |
US6115626A (en) | 1998-03-26 | 2000-09-05 | Scimed Life Systems, Inc. | Systems and methods using annotated images for controlling the use of diagnostic or therapeutic instruments in instruments in interior body regions |
US6014581A (en) | 1998-03-26 | 2000-01-11 | Ep Technologies, Inc. | Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure |
US6064902A (en) | 1998-04-16 | 2000-05-16 | C.R. Bard, Inc. | Pulmonary vein ablation catheter |
US6045550A (en) | 1998-05-05 | 2000-04-04 | Cardiac Peacemakers, Inc. | Electrode having non-joined thermocouple for providing multiple temperature-sensitive junctions |
US6059778A (en) * | 1998-05-05 | 2000-05-09 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method using unipolar and bipolar techniques |
US6146381A (en) | 1998-05-05 | 2000-11-14 | Cardiac Pacemakers, Inc. | Catheter having distal region for deflecting axial forces |
US6312425B1 (en) | 1998-05-05 | 2001-11-06 | Cardiac Pacemakers, Inc. | RF ablation catheter tip electrode with multiple thermal sensors |
US6558378B2 (en) * | 1998-05-05 | 2003-05-06 | Cardiac Pacemakers, Inc. | RF ablation system and method having automatic temperature control |
US6171305B1 (en) | 1998-05-05 | 2001-01-09 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method having high output impedance drivers |
US6049737A (en) * | 1998-05-05 | 2000-04-11 | Cardiac Pacemakers, Inc. | Catheter having common lead for electrode and sensor |
US6042580A (en) | 1998-05-05 | 2000-03-28 | Cardiac Pacemakers, Inc. | Electrode having composition-matched, common-lead thermocouple wire for providing multiple temperature-sensitive junctions |
US6050994A (en) | 1998-05-05 | 2000-04-18 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method using controllable duty cycle with alternate phasing |
US6428537B1 (en) | 1998-05-22 | 2002-08-06 | Scimed Life Systems, Inc. | Electrophysiological treatment methods and apparatus employing high voltage pulse to render tissue temporarily unresponsive |
US6107699A (en) | 1998-05-22 | 2000-08-22 | Scimed Life Systems, Inc. | Power supply for use in electrophysiological apparatus employing high-voltage pulses to render tissue temporarily unresponsive |
US6238390B1 (en) * | 1998-05-27 | 2001-05-29 | Irvine Biomedical, Inc. | Ablation catheter system having linear lesion capabilities |
US20010044625A1 (en) | 1998-05-27 | 2001-11-22 | Cary Hata | Catheter for circular tissue ablation and methods thereof |
US6241727B1 (en) | 1998-05-27 | 2001-06-05 | Irvine Biomedical, Inc. | Ablation catheter system having circular lesion capabilities |
US6251107B1 (en) | 1998-06-25 | 2001-06-26 | Cardima, Inc. | Ep catheter |
US6029091A (en) * | 1998-07-09 | 2000-02-22 | Irvine Biomedical, Inc. | Catheter system having lattice electrodes |
US6301496B1 (en) | 1998-07-24 | 2001-10-09 | Biosense, Inc. | Vector mapping of three-dimensionally reconstructed intrabody organs and method of display |
US6226542B1 (en) | 1998-07-24 | 2001-05-01 | Biosense, Inc. | Three-dimensional reconstruction of intrabody organs |
US6033403A (en) | 1998-10-08 | 2000-03-07 | Irvine Biomedical, Inc. | Long electrode catheter system and methods thereof |
US6451015B1 (en) | 1998-11-18 | 2002-09-17 | Sherwood Services Ag | Method and system for menu-driven two-dimensional display lesion generator |
US6290697B1 (en) | 1998-12-01 | 2001-09-18 | Irvine Biomedical, Inc. | Self-guiding catheter system for tissue ablation |
US6210406B1 (en) | 1998-12-03 | 2001-04-03 | Cordis Webster, Inc. | Split tip electrode catheter and signal processing RF ablation system |
US6267746B1 (en) | 1999-03-22 | 2001-07-31 | Biosense Webster, Inc. | Multi-directional steerable catheters and control handles |
US6325797B1 (en) | 1999-04-05 | 2001-12-04 | Medtronic, Inc. | Ablation catheter and method for isolating a pulmonary vein |
US20050010095A1 (en) | 1999-04-05 | 2005-01-13 | Medtronic, Inc. | Multi-purpose catheter apparatus and method of use |
US6702811B2 (en) * | 1999-04-05 | 2004-03-09 | Medtronic, Inc. | Ablation catheter assembly with radially decreasing helix and method of use |
US6478793B1 (en) | 1999-06-11 | 2002-11-12 | Sherwood Services Ag | Ablation treatment of bone metastases |
US6391024B1 (en) | 1999-06-17 | 2002-05-21 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering |
US6371955B1 (en) * | 1999-08-10 | 2002-04-16 | Biosense Webster, Inc. | Atrial branding iron catheter and a method for treating atrial fibrillation |
US6289248B1 (en) | 1999-08-20 | 2001-09-11 | Cardiac Pacemakers, Inc. | System and method for detecting and displaying parameter interactions |
US6332881B1 (en) | 1999-09-01 | 2001-12-25 | Cardima, Inc. | Surgical ablation tool |
US6471693B1 (en) | 1999-09-10 | 2002-10-29 | Cryocath Technologies Inc. | Catheter and system for monitoring tissue contact |
US6607520B2 (en) | 1999-09-15 | 2003-08-19 | The General Hospital Corporation | Coiled ablation catheter system |
US6632223B1 (en) | 2000-03-30 | 2003-10-14 | The General Hospital Corporation | Pulmonary vein ablation stent and method |
US6386199B1 (en) | 1999-09-29 | 2002-05-14 | David D. Alfery | Perilaryngeal oral airway |
US6529756B1 (en) | 1999-11-22 | 2003-03-04 | Scimed Life Systems, Inc. | Apparatus for mapping and coagulating soft tissue in or around body orifices |
US6575997B1 (en) | 1999-12-23 | 2003-06-10 | Endovascular Technologies, Inc. | Embolic basket |
US6628976B1 (en) | 2000-01-27 | 2003-09-30 | Biosense Webster, Inc. | Catheter having mapping assembly |
US6711428B2 (en) | 2000-01-27 | 2004-03-23 | Biosense Webster, Inc. | Catheter having mapping assembly |
US6892091B1 (en) | 2000-02-18 | 2005-05-10 | Biosense, Inc. | Catheter, method and apparatus for generating an electrical map of a chamber of the heart |
US6264664B1 (en) | 2000-03-10 | 2001-07-24 | General Science And Technology Corp. | Surgical basket devices |
US6569162B2 (en) | 2001-03-29 | 2003-05-27 | Ding Sheng He | Passively self-cooled electrode design for ablation catheters |
US7344546B2 (en) | 2000-04-05 | 2008-03-18 | Pathway Medical Technologies | Intralumenal material removal using a cutting device for differential cutting |
US6652517B1 (en) | 2000-04-25 | 2003-11-25 | Uab Research Foundation | Ablation catheter, system, and method of use thereof |
WO2001082811A1 (en) | 2000-04-27 | 2001-11-08 | Medtronic, Inc. | System and method for assessing transmurality of ablation lesions |
US6546935B2 (en) | 2000-04-27 | 2003-04-15 | Atricure, Inc. | Method for transmural ablation |
US20020107514A1 (en) | 2000-04-27 | 2002-08-08 | Hooven Michael D. | Transmural ablation device with parallel jaws |
US6475214B1 (en) | 2000-05-01 | 2002-11-05 | Biosense Webster, Inc. | Catheter with enhanced ablation electrode |
US6936047B2 (en) | 2000-05-12 | 2005-08-30 | Agility Capital Llc | Multi-channel RF energy delivery with coagulum reduction |
US6477396B1 (en) | 2000-07-07 | 2002-11-05 | Biosense Webster, Inc. | Mapping and ablation catheter |
US6546270B1 (en) | 2000-07-07 | 2003-04-08 | Biosense, Inc. | Multi-electrode catheter, system and method |
US6425894B1 (en) | 2000-07-12 | 2002-07-30 | Biosense Webster, Inc. | Ablation catheter with electrode temperature monitoring |
US6746446B1 (en) | 2000-08-04 | 2004-06-08 | Cardima, Inc. | Electrophysiological device for the isthmus |
US6669692B1 (en) | 2000-08-21 | 2003-12-30 | Biosense Webster, Inc. | Ablation catheter with cooled linear electrode |
US6493586B1 (en) | 2000-08-30 | 2002-12-10 | Cardiac Pacemakers, Inc. | Site reversion in cardiac rhythm management |
US6638275B1 (en) | 2000-10-05 | 2003-10-28 | Medironic, Inc. | Bipolar ablation apparatus and method |
US6640120B1 (en) | 2000-10-05 | 2003-10-28 | Scimed Life Systems, Inc. | Probe assembly for mapping and ablating pulmonary vein tissue and method of using same |
US6916306B1 (en) | 2000-11-10 | 2005-07-12 | Boston Scientific Scimed, Inc. | Steerable loop structures for supporting diagnostic and therapeutic elements in contact with body tissue |
EP1343426B1 (en) | 2000-12-11 | 2012-10-24 | C.R. Bard, Inc. | Microelectrode catheter for mapping and ablation |
US7047068B2 (en) * | 2000-12-11 | 2006-05-16 | C.R. Bard, Inc. | Microelectrode catheter for mapping and ablation |
US6583796B2 (en) | 2000-12-14 | 2003-06-24 | Medtronic, Inc. | Method and apparatus for displaying information retrieved from an implanted medical device |
US6723092B2 (en) | 2000-12-15 | 2004-04-20 | Tony R. Brown | Atrial fibrillation RF treatment device and method |
DE60115707T2 (en) | 2000-12-21 | 2006-08-10 | Insulet Corp., Beverly | REMOTE CONTROL MEDICAL DEVICE |
US6752804B2 (en) | 2000-12-28 | 2004-06-22 | Cardiac Pacemakers, Inc. | Ablation system and method having multiple-sensor electrodes to assist in assessment of electrode and sensor position and adjustment of energy levels |
US6638223B2 (en) | 2000-12-28 | 2003-10-28 | Ge Medical Systems Global Technology Company, Llc | Operator interface for a medical diagnostic imaging device |
US6740040B1 (en) | 2001-01-30 | 2004-05-25 | Advanced Cardiovascular Systems, Inc. | Ultrasound energy driven intraventricular catheter to treat ischemia |
US6569163B2 (en) | 2001-03-09 | 2003-05-27 | Quantumcor, Inc. | Wireless electrosurgical adapter unit and methods thereof |
US6743225B2 (en) | 2001-03-27 | 2004-06-01 | Uab Research Foundation | Electrophysiologic measure of endpoints for ablation lesions created in fibrillating substrates |
US6663627B2 (en) | 2001-04-26 | 2003-12-16 | Medtronic, Inc. | Ablation system and method of use |
US6699240B2 (en) | 2001-04-26 | 2004-03-02 | Medtronic, Inc. | Method and apparatus for tissue ablation |
EP1383426B1 (en) | 2001-04-27 | 2008-12-24 | C.R. Bard, Inc. | Catheter for three dimensional mapping of electrical activity in blood vessels |
US6551271B2 (en) | 2001-04-30 | 2003-04-22 | Biosense Webster, Inc. | Asymmetrical bidirectional steerable catheter |
US6972016B2 (en) | 2001-05-01 | 2005-12-06 | Cardima, Inc. | Helically shaped electrophysiology catheter |
US6740080B2 (en) | 2001-08-31 | 2004-05-25 | Cardiac Pacemakers, Inc. | Ablation system with selectable current path means |
US6569114B2 (en) | 2001-08-31 | 2003-05-27 | Biosense Webster, Inc. | Steerable catheter with struts |
US6761716B2 (en) | 2001-09-18 | 2004-07-13 | Cardiac Pacemakers, Inc. | System and method for assessing electrode-tissue contact and lesion quality during RF ablation by measurement of conduction time |
US6907297B2 (en) | 2001-09-28 | 2005-06-14 | Ethicon, Inc. | Expandable intracardiac return electrode and method of use |
US6635056B2 (en) | 2001-10-09 | 2003-10-21 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method using amplitude control |
US6671533B2 (en) | 2001-10-11 | 2003-12-30 | Irvine Biomedical Inc. | System and method for mapping and ablating body tissue of the interior region of the heart |
US6669693B2 (en) * | 2001-11-13 | 2003-12-30 | Mayo Foundation For Medical Education And Research | Tissue ablation device and methods of using |
US6961602B2 (en) | 2001-12-31 | 2005-11-01 | Biosense Webster, Inc. | Catheter having multiple spines each having electrical mapping and location sensing capabilities |
US6817999B2 (en) | 2002-01-03 | 2004-11-16 | Afx, Inc. | Flexible device for ablation of biological tissue |
US7048756B2 (en) | 2002-01-18 | 2006-05-23 | Apasara Medical Corporation | System, method and apparatus for evaluating tissue temperature |
US6733499B2 (en) | 2002-02-28 | 2004-05-11 | Biosense Webster, Inc. | Catheter having circular ablation assembly |
EP1487366B1 (en) | 2002-03-15 | 2007-08-08 | C.R. Bard, Inc. | Apparatus for control of ablation energy and electrogram acquisition through multiple common electrodes in an electrophysiology catheter |
US6730078B2 (en) | 2002-04-22 | 2004-05-04 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method using multi-frequency energy delivery |
DE10218426A1 (en) | 2002-04-24 | 2003-11-06 | Biotronik Mess & Therapieg | Ablation device for cardiac tissue, in particular for producing linear lesions between two vascular orifices in the heart |
US20030204185A1 (en) | 2002-04-26 | 2003-10-30 | Sherman Marshall L. | System and method for monitoring use of disposable catheters |
US20030212390A1 (en) | 2002-05-07 | 2003-11-13 | Chen Peter C. | System for operating an ablation generator with dual energy source |
US6893442B2 (en) | 2002-06-14 | 2005-05-17 | Ablatrics, Inc. | Vacuum coagulation probe for atrial fibrillation treatment |
US7588568B2 (en) | 2002-07-19 | 2009-09-15 | Biosense Webster, Inc. | Atrial ablation catheter and method for treating atrial fibrillation |
US6866662B2 (en) | 2002-07-23 | 2005-03-15 | Biosense Webster, Inc. | Ablation catheter having stabilizing array |
US7306593B2 (en) | 2002-10-21 | 2007-12-11 | Biosense, Inc. | Prediction and assessment of ablation of cardiac tissue |
US20050033137A1 (en) | 2002-10-25 | 2005-02-10 | The Regents Of The University Of Michigan | Ablation catheters and methods for their use |
US20040082947A1 (en) | 2002-10-25 | 2004-04-29 | The Regents Of The University Of Michigan | Ablation catheters |
US7027851B2 (en) | 2002-10-30 | 2006-04-11 | Biosense Webster, Inc. | Multi-tip steerable catheter |
WO2004039273A2 (en) | 2002-10-31 | 2004-05-13 | C.R. Bard, Inc. | Electrophysiology catheter with biased tip |
US20040116921A1 (en) | 2002-12-11 | 2004-06-17 | Marshall Sherman | Cold tip rf/ultrasonic ablation catheter |
US6984232B2 (en) * | 2003-01-17 | 2006-01-10 | St. Jude Medical, Daig Division, Inc. | Ablation catheter assembly having a virtual electrode comprising portholes |
US7819866B2 (en) | 2003-01-21 | 2010-10-26 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Ablation catheter and electrode |
US6987995B2 (en) | 2003-03-12 | 2006-01-17 | Biosense Webster, Inc. | Multifunctional catheter handle |
US7163537B2 (en) * | 2003-06-02 | 2007-01-16 | Biosense Webster, Inc. | Enhanced ablation and mapping catheter and method for treating atrial fibrillation |
US7292715B2 (en) | 2003-06-09 | 2007-11-06 | Infraredx, Inc. | Display of diagnostic data |
US6973339B2 (en) | 2003-07-29 | 2005-12-06 | Biosense, Inc | Lasso for pulmonary vein mapping and ablation |
DE10340546B4 (en) | 2003-09-01 | 2006-04-20 | Siemens Ag | Method and apparatus for visually assisting electrophysiology catheter application in the heart |
DE10340544B4 (en) | 2003-09-01 | 2006-08-03 | Siemens Ag | Device for visual support of electrophysiology catheter application in the heart |
US7156843B2 (en) | 2003-09-08 | 2007-01-02 | Medtronic, Inc. | Irrigated focal ablation tip |
US7155270B2 (en) | 2003-10-24 | 2006-12-26 | Biosense Webster, Inc. | Catheter with multi-spine mapping assembly |
US20050096644A1 (en) | 2003-10-30 | 2005-05-05 | Hall Jeffrey A. | Energy delivery optimization for RF duty cycle for lesion creation |
US7367970B2 (en) | 2003-11-11 | 2008-05-06 | Biosense Webster Inc. | Externally applied RF for pulmonary vein isolation |
US7077823B2 (en) | 2003-11-19 | 2006-07-18 | Biosense Webster, Inc. | Bidirectional steerable catheter with slidable mated puller wires |
MXPA06007623A (en) | 2003-12-31 | 2007-01-30 | Johnson & Johnson | Circumferential ablation device assembly with an expandable member. |
ATE507789T1 (en) | 2003-12-31 | 2011-05-15 | Biosense Webster Inc | COMPREHENSIVE ABLATION DEVICE ASSEMBLY HAVING DUAL EXPANDABLE ELEMENTS |
US7070594B2 (en) | 2004-02-10 | 2006-07-04 | Cryocor, Inc. | System and method for assessing ice ball formation during a cryoablation procedure |
US20050187545A1 (en) | 2004-02-20 | 2005-08-25 | Hooven Michael D. | Magnetic catheter ablation device and method |
US7530980B2 (en) | 2004-04-14 | 2009-05-12 | Atricure, Inc | Bipolar transmural ablation method and apparatus |
US7527625B2 (en) | 2004-08-04 | 2009-05-05 | Olympus Corporation | Transparent electrode for the radiofrequency ablation of tissue |
US20060089637A1 (en) | 2004-10-14 | 2006-04-27 | Werneth Randell L | Ablation catheter |
WO2006049970A2 (en) | 2004-10-27 | 2006-05-11 | Yuval Carmel | Radio-frequency device for passivation of vascular plaque and method of using same |
US8409191B2 (en) | 2004-11-04 | 2013-04-02 | Boston Scientific Scimed, Inc. | Preshaped ablation catheter for ablating pulmonary vein ostia within the heart |
US20060100618A1 (en) | 2004-11-08 | 2006-05-11 | Cardima, Inc. | System and method for performing ablation and other medical procedures using an electrode array with flex circuit |
US8617152B2 (en) * | 2004-11-15 | 2013-12-31 | Medtronic Ablation Frontiers Llc | Ablation system with feedback |
WO2006055654A1 (en) | 2004-11-15 | 2006-05-26 | Biosense Webster Inc. | Catheter with microfabricated temperature sensing |
AU2005307758B2 (en) | 2004-11-15 | 2011-08-25 | Biosense Webster Inc. | Catheter with multiple microfabricated temperature sensors |
WO2006055741A1 (en) | 2004-11-17 | 2006-05-26 | Biosense Webster, Inc. | Apparatus for real time evaluation of tissue ablation |
EP1658818A1 (en) | 2004-11-23 | 2006-05-24 | Biosense Webster, Inc. | Externally applied rf for pulmonary vein isolation |
US7429261B2 (en) | 2004-11-24 | 2008-09-30 | Ablation Frontiers, Inc. | Atrial ablation catheter and method of use |
US7468062B2 (en) | 2004-11-24 | 2008-12-23 | Ablation Frontiers, Inc. | Atrial ablation catheter adapted for treatment of septal wall arrhythmogenic foci and method of use |
EP1895927A4 (en) | 2005-06-20 | 2011-03-09 | Medtronic Ablation Frontiers | Ablation catheter |
WO2007008954A2 (en) | 2005-07-11 | 2007-01-18 | Ablation Frontiers | Low power tissue ablation system |
US7879030B2 (en) * | 2005-07-27 | 2011-02-01 | St. Jude Medical, Atrial Fibrillation Division, Inc. | Multipolar, virtual-electrode catheter with at least one surface electrode and method for ablation |
US8657814B2 (en) | 2005-08-22 | 2014-02-25 | Medtronic Ablation Frontiers Llc | User interface for tissue ablation system |
-
2004
- 2004-11-24 US US10/997,172 patent/US7429261B2/en not_active Expired - Fee Related
-
2005
- 2005-04-15 US US11/107,191 patent/US20060111703A1/en not_active Abandoned
- 2005-11-23 AU AU2005309408A patent/AU2005309408B2/en not_active Ceased
- 2005-11-23 JP JP2007543550A patent/JP2008521504A/en active Pending
- 2005-11-23 EP EP20050852220 patent/EP1814484B1/en active Active
- 2005-11-23 CA CA002587917A patent/CA2587917A1/en not_active Abandoned
- 2005-11-23 WO PCT/US2005/042812 patent/WO2006058251A2/en active Application Filing
-
2008
- 2008-08-25 US US12/197,425 patent/US8273084B2/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010894A (en) * | 1988-01-07 | 1991-04-30 | Edhag Knut O | Intravascular electrode lead usable for cardiac defibrillation |
US5184621A (en) * | 1991-05-29 | 1993-02-09 | C. R. Bard, Inc. | Steerable guidewire having electrodes for measuring vessel cross-section and blood flow |
US6032674A (en) * | 1992-01-07 | 2000-03-07 | Arthrocare Corporation | Systems and methods for myocardial revascularization |
US5313943A (en) * | 1992-09-25 | 1994-05-24 | Ep Technologies, Inc. | Catheters and methods for performing cardiac diagnosis and treatment |
US6071282A (en) * | 1994-10-07 | 2000-06-06 | Ep Technologies, Inc. | Structures for deploying electrode elements |
US6053937A (en) * | 1995-08-15 | 2000-04-25 | Rita Medical Systems, Inc. | Multiple electrode ablation apparatus and method with cooling element |
US5911720A (en) * | 1996-11-26 | 1999-06-15 | Ep Technologies, Inc. | Ablation catheter with segmented tip |
US6063082A (en) * | 1997-11-04 | 2000-05-16 | Scimed Life Systems, Inc. | Percutaneous myocardial revascularization basket delivery system and radiofrequency therapeutic device |
US6319251B1 (en) * | 1998-09-24 | 2001-11-20 | Hosheng Tu | Medical device and methods for treating intravascular restenosis |
US6952615B2 (en) * | 2001-09-28 | 2005-10-04 | Shutaro Satake | Radiofrequency thermal balloon catheter |
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US8409219B2 (en) | 2004-06-18 | 2013-04-02 | Medtronic, Inc. | Method and system for placement of electrical lead inside heart |
US9642675B2 (en) | 2004-10-14 | 2017-05-09 | Medtronic Ablation Frontiers Llc | Ablation catheter |
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US9375268B2 (en) | 2007-02-15 | 2016-06-28 | Ethicon Endo-Surgery, Inc. | Electroporation ablation apparatus, system, and method |
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US10105141B2 (en) | 2008-07-14 | 2018-10-23 | Ethicon Endo-Surgery, Inc. | Tissue apposition clip application methods |
US10314603B2 (en) | 2008-11-25 | 2019-06-11 | Ethicon Llc | Rotational coupling device for surgical instrument with flexible actuators |
US10004558B2 (en) | 2009-01-12 | 2018-06-26 | Ethicon Endo-Surgery, Inc. | Electrical ablation devices |
US9011431B2 (en) | 2009-01-12 | 2015-04-21 | Ethicon Endo-Surgery, Inc. | Electrical ablation devices |
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US10258406B2 (en) | 2011-02-28 | 2019-04-16 | Ethicon Llc | Electrical ablation devices and methods |
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US10492880B2 (en) | 2012-07-30 | 2019-12-03 | Ethicon Llc | Needle probe guide |
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Also Published As
Publication number | Publication date |
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US7429261B2 (en) | 2008-09-30 |
US20080306477A1 (en) | 2008-12-11 |
WO2006058251A3 (en) | 2006-10-05 |
AU2005309408B2 (en) | 2012-01-19 |
EP1814484B1 (en) | 2015-04-29 |
EP1814484A4 (en) | 2008-08-20 |
WO2006058251A2 (en) | 2006-06-01 |
EP1814484A2 (en) | 2007-08-08 |
CA2587917A1 (en) | 2006-06-01 |
US8273084B2 (en) | 2012-09-25 |
US20060111700A1 (en) | 2006-05-25 |
JP2008521504A (en) | 2008-06-26 |
AU2005309408A1 (en) | 2006-06-01 |
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