WO2013016056A2 - Devices and methods for transnasal dilation and irrigation of the sinuses - Google Patents
Devices and methods for transnasal dilation and irrigation of the sinuses Download PDFInfo
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- WO2013016056A2 WO2013016056A2 PCT/US2012/046964 US2012046964W WO2013016056A2 WO 2013016056 A2 WO2013016056 A2 WO 2013016056A2 US 2012046964 W US2012046964 W US 2012046964W WO 2013016056 A2 WO2013016056 A2 WO 2013016056A2
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- irrigation
- medical device
- tip
- lumen
- opening
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
- A61M3/0295—Cannula; Nozzles; Tips; their connection means with inflatable balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/24—Surgical instruments, devices or methods, e.g. tourniquets for use in the oral cavity, larynx, bronchial passages or nose; Tongue scrapers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1688—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the sinus or nose
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3478—Endoscopic needles, e.g. for infusion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00557—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated inflatable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/77—Suction-irrigation systems
- A61M1/772—Suction-irrigation systems operating alternately
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0681—Sinus (maxillaris)
Definitions
- the present invention relates, in general, to medical devices and, in particular, to medical devices and related methods for the treatment of sinus conditions.
- the paranasal sinuses are hollow cavities in the skull connected by small openings, known as ostia, to the nasal canal.
- Each ostium between a paranasal sinus and the nasal cavity is formed by a bone covered by a layer of mucosal tissue.
- mucosal tissue Normally, air passes into and out of the paranasal sinuses through the ostia.
- mucus is continually formed by the mucosal lining of the sinuses and drains through the ostia and into the nasal canal.
- Sinusitis is a general term that refers to inflammation in one or more of the paranasal sinuses.
- Acute sinusitis can be associated with upper respiratory infections or allergic conditions, which may cause tissue swelling and temporarily impede normal trans-ostial drainage and ventilation of the sinuses, thereby resulting in some collection of mucus and possibly infection within the sinus cavities.
- Chronic sinusitis is a long term condition characterized by persistent narrowing or blockage of one or more sinus ostia, resulting in chronic infection and inflammation of the sinuses.
- Chronic sinusitis is often associated with longstanding respiratory allergies, nasal polyps, hypertrophic nasal turbinates and/or deviated internasal septum.
- acute sinusitis is typically caused by infection with a single pathogen (e.g., one type of bacteria, one type of virus, one type of fungus, etc.)
- chronic sinusitis is often associated with multiple pathogen infections (e.g., more than one type of bacteria or more than one genus of micro-organism).
- Chronic sinusitis if left untreated, can result in irreparable damage to the tissues and/or bony structures of the paranasal anatomy.
- the initial treatment of chronic sinusitis usually involves the use of drugs such as decongestants, steroid nasal sprays and antibiotics (if the infection is bacterial). In cases where drug treatment alone fails to provide permanent relief, surgical intervention may be indicated.
- FESS functional endoscopic sinus surgery
- FESS is commonly performed using an endoscope and various rigid instruments inserted through the patient's nostril.
- the endoscope is used to visualize the positioning and use of various rigid instruments used for removing tissue from the nasal cavity and sinus ostia in an attempt to improve sinus drainage.
- Balloon SinuplastyTM procedure A technique known as the Balloon SinuplastyTM procedure and a system for performing the procedure has been developed by Acclarent Inc, of Menlo Park, CA for the treatment of sinusitis.
- a number of US patents and patent applications including US Patent Nos. 7645272, 7654997, and 7803150 describe various embodiment of the Balloon SinuplastyTM procedure as well as various devices useable in the performance of such procedure.
- a guide catheter is inserted into the nose and positioned within or adjacent to the ostium of the affected paranasal sinus.
- a guidewire is then advanced through the guide catheter and into the affected paranasal sinus.
- a dilation catheter having an expandable dilator e.g.
- an inflatable balloon is advanced over the guidewire to a position where the dilator is positioned within the ostium of the affected paranasal sinus.
- the dilator is then expanded, causing dilation of the ostium and remodelling of bone adjacent to the ostium, without required incision of the mucosa or removal of any bone.
- the catheters and guidewire are then removed and the dilated ostium allows for improved drainage from and ventilation of the affected paranasal sinus.
- 2008/0183128 may be used for irrigating a paranasal sinus.
- the irrigation catheter may be advanced through a guide catheter and into an ostium or the sinus for purposes of, for example irrigation, suctioning, substance delivery and culture retrieval.
- irrigation catheter described above is easy to use, it would be useful to provide for irrigation of the sinuses during the Balloon
- the current invention is directed to a medical device for the treatment of a sinus opening, the medical device having a proximal end, a distal end, and a shaft system having an inflation lumen and an irrigation lumen between the proximal end and distal end.
- the shaft system has a proximal shaft section and a distal shaft section, an inflatable balloon on the distal shaft section and proximal to the distal end, and an irrigation tip on the distal shaft section, distal to the inflatable balloon.
- the irrigation tip has a tip opening and one or more radially facing openings.
- the medical device may have 3 radially facing openings.
- the radially facing openings may have a diameter of between 0.020 inches and 0.050 inches or of 0.026 inches.
- the inflation lumen and the irrigation lumen of the medical device are adjacent lumens.
- the medical device includes a guide element lumen.
- the irrigation tip has an irrigation tip lumen proximal of the atraumatic tip.
- the irrigation tip lumen has an irrigation tip lumen diameter
- the tip opening has a tip opening diameter
- the irrigation tip lumen diameter is greater than the tip opening diameter.
- the tip opening diameter is 0.037 inches and the irrigation lumen diameter is 0.042 inches.
- the proximal shaft section of the medical device includes a stiffening member.
- the stiffening member is a hypotube.
- the current invention is directed to a system for accessing, dilating and irrigating a sinus, the system having a sinus guide catheter, a guiding element; and a medical device.
- the medical device has an inflation lumen, an irrigation lumen, an inflatable balloon and an irrigation tip.
- the inflation lumen and the irrigation lumen are adjacent lumens and the irrigation tip has a tip opening and at least one radially facing opening.
- the medical device of the system has one or more direct visualization markers or one or more radiographic markers.
- the medical device of the system has 3 radially facing openings.
- the radially facing openings may have a diameter of between 0.020 inches and 0.050 inches or of 0.026 inches.
- system guiding element is selected from the group consisting of a guidewire or a sinus illumination system.
- medical device of the system includes a guide element lumen.
- the medical device of the system has an irrigation tip with an irrigation tip lumen proximal of the atraumatic tip.
- the irrigation tip lumen has an irrigation tip lumen diameter
- the tip opening has a tip opening diameter
- the irrigation tip lumen diameter is greater than the tip opening diameter.
- the tip opening diameter is 0.037 inches and the irrigation tip lumen diameter is 0.042 inches.
- the medical device of the system has a proximal shaft section that includes a stiffening member.
- the stiffening member comprises a hypotube.
- the invention is directed to a packaged kit for treating a sinus opening.
- the kit comprises a medical device having an inflation lumen, an irrigation lumen, an inflatable balloon and an irrigation tip, the inflation lumen and the irrigation lumen being adjacent lumens and the irrigation tip having at least one radially facing opening, a balloon insertion stylet for insertion of the medical device into a sinus guide catheter, and irrigation tubing for connecting the medical device to a source of irrigation fluid.
- the invention is directed to a method for treating a target space in the nasal anatomy.
- the method includes providing a medical device having an inflation lumen, an irrigation lumen, an inflatable balloon and an irrigation tip.
- the inflation lumen and the irrigation lumen are adjacent lumens and the irrigation tip has a tip opening and at least one radially facing opening.
- the method includes inserting the medical device into a sinus guide catheter, inserting a guiding element into the medical device through the irrigation lumen, positioning the guide catheter in the nasal anatomy, advancing the guiding element into the target space of the nasal anatomy, advancing the medical device over the guiding element into the target space of the nasal anatomy, inflating the balloon to dilate a sinus opening, deflating the balloon, withdrawing the guiding element from the medical device, connecting irrigation tubing to the medical device, and delivering fluid to the target space though the tip opening and the at least one radially facing opening.
- delivering the fluid occurs at a flow rate of between 50 ml/min and 200 ml/min or at a flow rate of between 75 ml/min and 125 ml/min and the sinus opening may be frontal sinus opening, a maxillary sinus opening, an ethmoid sinus opening and a sphenoid sinus opening.
- the fluid may be water, saline, contrast agents, antimicrobial agents anti-inflammatory agents, decongestants , mucous thinning agents, anesthetic agents, analgesic agents, anti-allergenic agents, allergens, antiproliferative agents, hemostatic agents, cytotoxic agents, and biological agents or combinations of any of the above.
- FIG. 1 is a simplified side view of a medical device according to an embodiment of the present invention.
- FIG. 1 A is a cross section view through line 1 A-1A of FIG. 1 .
- FIG 1 B is an alternative embodiment of a cross section view through line 1A-1A of FIG. 1 .
- FIG. 2 is an enlarged view of the distal end of the medical device shown in FIG. 1 .
- FIG. 3 shows a collection of sinus guide catheters useful for positioning of the sinus balloon catheters of the invention.
- FIG. 4 shows a stylet for positioning the medical devices of the invention.
- FIG. 5 shows irrigation tubing useful with the medical devices according to the invention.
- FIG. 6 is a perspective view of a guidewire for use with the medical devices of the invention.
- FIG. 7 is a perspective view of a sinus illumination system for use with the medical devices of the invention.
- FIG. 8 is a side view of a medical device according to an embodiment of the present invention.
- Medical devices according to embodiments of the present invention are beneficial in that, for example, their configuration provides for a particularly efficient preparation and treatment of a patient's sinus opening and is mechanically simple. Moreover, the simplicity of the medical devices provides for them to be manufactured in a cost effective manner. In addition, the medical device according to
- embodiments of the present invention is sufficiently stiff that it can be beneficially employed to access sinus anatomy followed by a convenient remodeling and irrigation of the sinus.
- FIG. 1 is a simplified side view of a medical device 100 for the treatment of a sinus opening (for example a frontal sinus opening, maxillary sinus opening, ethmoid sinus opening or sphenoid sinus opening) according to an embodiment of the present invention.
- a sinus opening for example a frontal sinus opening, maxillary sinus opening, ethmoid sinus opening or sphenoid sinus opening
- the medical device 100 is a sinus remodeling and irrigation catheter with an integrated shaft system 102 and a high pressure balloon 104 near the irrigation tip 106.
- the shaft system 102 contains adjacent dual lumen tubing (see FIG. 1 A).
- the inflation lumen 108 is used for inflation of the balloon with water, contrast medium or saline through inflation port 150, and the irrigation lumen 1 10 permits passage of a guidewire or sinus illumination system to facilitate advancement of the medical device 100 to the target site and, further, to allow for the flow of irrigation fluid (water or saline) to the target site.
- irrigation lumen 1 10 permits passage of a guidewire or sinus illumination system to facilitate advancement of the medical device 100 to the target site and, further, to allow for the flow of irrigation fluid (water or saline) to the target site.
- a guide element lumen 1 1 1 such lumen being adjacent to the inflation lumen 108 and the irrigation lumen 1 10 (see FIG. 1 B).
- the irrigation lumen 1 10 and the guide element lumen 1 1 1 merge into a single irrigation lumen 1 10 in the distal shaft portion 1 18 of the device, proximal to the balloon 104.
- the medical device 100 has an irrigation tip 106 with both a forward facing tip opening 1 14 and radially facing openings 1 12a, 1 12b and 1 12c to facilitate irrigation delivery through the irrigation lumen 1 10.
- the medical device 100 is intended to dilate sinus ostia and spaces within the paranasal sinus cavities and to provide a means to irrigate from within a target sinus for diagnostic and therapeutic purposes.
- the medical device 100 is designed to irrigate the sinus through the tip opening 1 14 and three radially facing openings 1 12a, 1 12b and 1 12c in the irrigation tip 106, by delivering fluid via the irrigation lumen 1 10 for delivery before, during, or after dilation of the sinus ostia or spaces within the paranasal sinus cavities. Further, instead of delivering fluid through the irrigation lumen 1 10, a vacuum may be applied and a culture may be obtained by suctioning through the tip opening 1 14 or the radially facing openings 1 12a, 1 12b and 1 12c.
- radially facing openings is intended that the flow through the openings may be at 90 degrees from the flow through the tip opening, but is may also be at 30, 45 or 60 degrees or other angles between 0 and 90 degrees, and the openings may be round or non-round such as oval or slot-shaped.
- the sinus balloon 104 is designed to be non-compliant or semi-compliant.
- the diameter of the non-compliant balloon does not vary significantly with inflation pressure and that of the semi-compliant balloon will vary only to the extent that it will "hourglass" or "dog-bone” about a target region.
- the balloon itself may be any shape such as round, triangular, oval or square. In the embodiment shown in FIG. 1 , the balloon is round and semi-compliant.
- a stiffening member in this case a hypotube 1 16 is incorporated on the proximal end of the medical device (at the distal end of the proximal shaft portion 122) to provide rigidity during insertion through a sinus guide catheter, as further described below.
- direct visualization markers and/or radiographic markers may be disposed along the integrated shaft system 102.
- direct visualization markers refers to markers that may be viewed during use with the naked eye or by use of an endoscope, while radiographic markers include radiopaque material and are viewed using a radiographic device such as intra-operative fluoroscopy.
- first distal radiographic marker 120a which has a proximal edge aligned with the location where the proximal taper 140a of the balloon 104 meets the proximal end of the effective length 142 of the balloon 104.
- second distal radiographic marker 120b which has a distal edge aligned with the location where the distal taper 140b meets the distal end effective length 142 of the balloon 104.
- the distance across the outside edges of the distal markers 120a and 120b represents the effective length 142 of the balloon 104.
- the distal markers 120a and 120b may be platinum marker bands. In this embodiment, the distal markers help to ensure that the medical device 100 is in a straight position inside the guide during the device loading and preparation. Additional radiographic markers may be included along the shaft of the catheter and/or at the distal tip.
- Direct visualization markers can be positioned in a number of locations along the integrated shaft system 102. Although one embodiment is described here with reference to FIGs. 1 and 2, other variations may be substituted in alternative embodiments.
- shaft system 102 may have a dark color, such as black, dark blue, dark grey or the like, and markers may have a light color, such as white, green, red or the like.
- markers may have different colors and/or different widths to facilitate distinguishing the markers from one another during use. This contrast in colors may facilitate viewing the markers in a darkened operation room and/or when using an endoscope inside a patient in the presence of blood.
- first distal shaft marker 128 there may be a first distal shaft marker 128 (or
- endoscopic marker since it is typically viewed during use via an endoscope (endoscopic marker), since it is typically viewed during use via an endoscope) disposed on the distal shaft portion 1 18 of the shaft system 102 at a location such that its distal edge aligns with the location where the proximal taper 140a of the balloon 104 meets the shaft system 102.
- the extended balloon neck 134 allows the first endoscopic marker 128 to be placed on the shaft and away from any adhesive bonding used to secure the proximal end of the balloon neck to the shaft.
- the first endoscopic marker 128 indicates to the user the ending location of the balloon 104 and indicates that the balloon has exited the guide during a procedure.
- the first endoscopic marker 128 may be about 2 mm wide.
- a second distal shaft marker 130 is disposed on the shaft system102 such that the distal edge of the marker is 1 cm. ⁇ .0.2 cm from the location where the proximal taper 140a of the balloon 104 meets the shaft system 102. This marker indicates to the user that the shaft location is 1 cm away from the end of the balloon indicating that the balloon has extended from the guide during the procedure.
- the second distal shaft marker may be about 2 mm wide and white in color, while the first marker is about 2 mm and green in color. Of course, any of a number of different size and color combinations may be used alternatively.
- a third distal shaft marker 132 is disposed on the shaft system 102 such that the distal edge of the marker is 1 cm. ⁇ .0.1 cm from the distal edge of the second distal shaft marker 130. As shown in FIG. 1 , the third distal shaft marker is a double marker to distinguish the second and third distal shaft markers 130 and 132 one from one another. The third distal shaft marker 132 indicates the shaft location 2 cm away from the end proximal end of the balloon 104, thus indicating the distance the balloon has extended from the guide during the procedure. In one embodiment, the two markers forming the third distal shaft marker 132 are each 0.75 mm wide and white in color, however, the size and color of the marker can be changed in alternative embodiments.
- the differences in the first, second and third distal shaft markers' color, length and number of marks give the indication of the relative location proximal to the balloon under endoscopic visibility.
- the physician user can identify the length of catheter that has been advanced and retracted out of a guide catheter and/or can approximate a location of the balloon 104 relative to patient anatomy such as a paranasal sinus ostium, other paranasal sinus opening, or other openings in the ear, nose or throat. This approximation of balloon position may be very useful in circumstances when the balloon 104 has been advanced far enough into an anatomical location that the balloon 104 can no longer be viewed via endoscope.
- the user is able to endoscopically gauge the distance the catheter has advanced into the frontal recess once the proximal portion of the balloon is no longer visible.
- distal shaft markers having different numbers, sizes, colors and positions along the catheter shaft may be used.
- one or more proximal shaft markers may be disposed along the proximal portion 122 of shaft system 102.
- proximal shaft markers may be viewed directly by a physician, without using an endoscope, to indicate to the physician a location of the balloon 104 of the medical device 100 relative to a guide catheter (see i.e. catheter 200a in FIG. 3) through which the medical device 100 is being advanced.
- the proximal shaft markers may have any suitable width, color, number, position and the like. In one embodiment, for example, as shown in FIG.
- two proximal shaft markers 124, 126 may have a light color to contrast with a dark colored shaft system 102 and increase visibility in a darkened operating room.
- the more proximal of the proximal markers 124 (or the "first proximal shaft marker") may indicate that a tip of the medical device 100 is at a distal end of the guide catheter 200 and that the balloon 104 has exited the distal end 202 of the guide catheter as the marker 124 passes into the proximal end 204 of the guide catheter.
- proximal markers 126 may indicate to a user that the balloon 104 is just proximal to a curve 206 in a guide catheter when marker 126 is located at the proximal end 204 of the guide catheter.
- the first proximal shaft marker 124 is disposed on the shaft system 102 such that the length from the proximal end of the proximal balloon taper 140a to the proximal end of the first shaft marker 124 is 13.1 cm. ⁇ .0.2 cm..
- the length of the first proximal shaft marker 124 can vary depending on the size of the balloon catheter and may be determined by adding the length of the irrigation tip 106, the effective or working length 142 of the balloon 104, and the lengths of the two balloon taper sections 140a and 140b.
- the first proximal shaft marker 124 is preferably white in color, however, other light colors, such as grey, can be used as well.
- the second proximal shaft marker 126 is disposed on the shaft system 102 distally from the first proximal shaft marker 124.
- the second proximal shaft marker 126 is positioned such that the irrigation tip 106 of the medical device 100 is 1 1 .4 cm. ⁇ .0.2 cm from the distal edge of the second proximal shaft marker 126.
- the second proximal shaft marker 126 has a length of 3 mm. ⁇ 2 mm. It is preferred that the second shaft proximal marker 126 is white in color, however, other light colors, such as grey, can be used as well.
- a user may visualize the first and second proximal shaft markers 124 and 126 to determine the position of the irrigation tip 106 and the balloon 104 of the medical device 100 relative to the sinus guide catheter 200a. For instance, when the second proximal shaft marker 126 is aligned with the proximal opening 204 of the guide catheter, the user will know that the balloon 104 is proximal to the curve 206 of the guide catheter. The position of the second proximal shaft marker 126 helps to visually ensure that the medical device 100 is properly loaded into the sinus guide catheter 200a.
- the user When the distal edge of the first proximal shaft marker 124 is aligned with the proximal opening 204 of the guide catheter 200a, the user knows that the irrigation tip 106 of the medical device 100 is beginning to exit the guide catheter 200a, and when the proximal edge of the first proximal shaft marker is aligned with the proximal opening 204 of the guide catheter 200a, the user knows that the balloon is completely out of the guide catheter 200a.
- the visible markers 124, 126, 128, 130 and 132 are preferably light in color, such as white as indicated above, to contrast with a dark color of the shaft system 102, which is preferably black.
- the high contrast between these visible markers and the shaft helps view the markers in a low light environment. Also, the high contrast allows the user to view directly with an endoscope the markers and know where the balloon 104 is located relative to a sinus ostium. Furthermore, the color contrast is useful during the procedure when the field is full of blood and/or mucus to view the markers and know the position of the balloon. Of course, any other suitable contrasting color combination may be used.
- the shaft system 102 may be light colored, and the markers 124, 126, 128, 130 and 132 may be dark colored.
- FIG. 3 shows a series of sinus guide catheters 200a-200f that may be used in conjunction with the medical device 100.
- These guide catheters 200a-200f are substantially rigid and each has a preset distal curve of 0 degrees (200a), 30 degrees (200b), 90 degrees (200d), 70 degrees (200c) or 1 10 degrees (200e and 200f). Different curvatures are useable to access the ostia of different sinuses. For example, a 70 degree guide is typically used to access the ostium of a frontal sinus, a 90 or 1 10 degree guide is typically used to access the ostium of a maxillary sinus, etc. Each of these guide catheters 200a-200f has a length of 12.7 cm. These sinus guide catheters are described in U.S.
- the medical device 100 is packaged with a balloon insertion stylet 300 (see FIG. 4) and irrigation tubing 400 (see FIG. 5).
- the stylet 300 comprises a rounded distal tip 302, a support shaft 304 and a proximal loop 306.
- the insertion stylet 300 assists with insertion of the medical device 100 into the sinus guide catheter 200a and is removed from the device 100 prior to advancement of the medical device 100 into the patient anatomy.
- the irrigation tubing 400 incorporates standard luer connectors 402 and 404 on each end and is used to attach a sterile syringe to the irrigation port 144 of the medical device 100 for sinus irrigation. Additionally, as shown in FIG. 8, a ring 800 is provided that may be operated by the thumb or finger of a user to aid in insertion of the medical device 820.
- the sinus guide catheter will be referred to as 200a, but any of the guide catheters 200b-f shown in FIG. 3 may be used.
- a guiding element such as a sinus guidewire 500 (i.e. Relieva Vigor® Sinus Guidewire manufactured by Acclarent Inc, Menlo Park, CA and shown in FIG. 6) or sinus illumination system 600 (i.e. Relieva Luma SentryTM Sinus Illumination System shown manufactured by Acclarent Inc, Menlo Park, CA and shown in FIG. 7) is inserted through the irrigation port 144 of the medical device 100 and to the distal tip of the sinus guide catheter 200a.
- a sinus guidewire 500 i.e. Relieva Vigor® Sinus Guidewire manufactured by Acclarent Inc, Menlo Park, CA and shown in FIG.
- sinus illumination system 600 i.e. Relieva Luma SentryTM Sinus Illumination System shown manufactured by Acclarent Inc, Menlo Park, CA and shown in FIG.
- Sinus access is achieved by positioning the sinus guide catheter 200a in the nasal anatomy, and advancing the sinus guidewire 500 or sinus illumination system 600 into the target sinus. Once sinus access has been achieved, the medical device 100 is advanced over the sinus guidewire 500 or sinus illumination system 600 and into the target space. The endoscopic markers on the balloon catheter can be used to assist with placement. The medical device 100 is then inflated to dilate the sinus ostia. Following dilation, the balloon is deflated. The guidewire 500 or sinus illumination system 600 is removed from the nasal anatomy. A standard syringe is connected to the irrigation tubing 400, which is connected to the irrigation port 144 of the medical device 100.
- Fluid is manually delivered to the sinus through the irrigation tip 106 via the distal tip opening 1 14 and three radially facing openings 1 12a, 1 12b and 1 12c of the medical device 100, each side port having a diameter of 0.026 inches.
- the medical device 100 is retracted into the sinus guide catheter 200a and removed from the anatomy.
- the medical device 100 can be prepared for additional sinus dilations and/or irrigations in the same patient.
- a suction system such as a standard syringe or other vacuum source such as a vacuum pump may be connected to the irrigation port 144 either directly and through a tubing system and the target sinus may be suctioned either before or after treatment thereof.
- the medical device 100 sizes may be 3.5mm x 12mm, 6mm x 16mm or 7mm x 24mm, although others are within the scope of the invention, including, but not limited to 5mm x 16mm, 5mm x 24mm or 7mm x 16mm.
- the distal shaft portion or section 1 18 of the device has an inner diameter of ⁇ 0.037 inches and the proximal shaft portion or section 122 of the device has an inner diameter of 0.042 inches.
- the distal edge 138 of the first endoscopic marker 128 is located 10 mm from the proximal edge 136 of the proximal balloon taper 140a, the length from the medical device tip opening 1 14 to the distal end 124a of the first shaft marker 124 is 1 14 mm and the distance from the proximal end 136 of the proximal balloon taper 140a to the proximal end 124a of the shaft marker 124 is 131 mm.
- the total length of the 3.5 mm medical device is 250mm and of the other medical devices is 252mm.
- the balloon inflated diameters for the medical devices are as follows: 3.5 mm for the 3.5mm x 12mm, 6 mm for the 6mm x 16mm and 7 mm for the 7mm x 24mm.
- the balloon inflated working lengths for the medical devices are as follows: 12 mm for the 3.5mm x 12mm, 16 mm for the 6mm x 16mm and 24 mm for the 7mm x 24mm.
- the maximum outer shaft diameter is ⁇ 0.086 inches.
- the deflation time of the balloon catheter is preferably ⁇ 5 seconds.
- the irrigation flow rate is approximately 100 ml/min and may between 50 and 200 ml/min or 75 and 125 ml/min with a maximum flow rate of 250 ml/min.
- the balloon 104 is made of any suitable material known in the art for inflation balloons and may be constructed of compliant, semi-compliant or non-compliant materials such as nylon (semi-compliant) and polyethylene terepththalate (PET) (non-compliant).
- the balloon is constructed of semi- compliant material such as nylon.
- the atraumatic tip portion 146 is also made of nylon and is soft with a durometer of less than approximately 55D (often approximately 40D). The remainder of the irrigation tip is less soft (with a durometer greater than about 55D, often about 70D) than the tip portion 146 and is flexible with a longer length than prior art balloons tips in order to accommodate the radially facing openings 1 12a, 1 12b and 1 12c.
- the medical device 100 is more easily inserted into the guide catheter 200a and through the tortuous sinus anatomy.
- the atraumatic tip portion 146 may further contain a marker that is nylon with 20% barium sulfate and is approximately 1 mm in length or may contain any other type of radiopaque marker for fluoroscopic visualization or colored marker for direct visualization of the patient anatomy.
- the outer shaft 148 of the medical device 100 is made of pebax.
- the first inner shaft 150 (comprising the inflation lumen) and the second inner shaft 152
- the irrigation lumen (comprising the irrigation lumen) are made of nylon and pebax.
- the hypotube shaft 1 16 that surrounds the outershaft 148 is 304 stainless steel.
- the combination of materials (the nylon balloon and the adjacent dual lumen design) provides for ease of insertion of the medical device into and removal from the guide catheter 200a (at least in part due to the smaller profile of the nylon balloon) and navigation through the tortuous sinus anatomy. Insertion into the guide catheter 200a and navigation through the tortuous anatomy is also enhanced by the atraumatic tip that is long, soft and flexible.
- Medical device 100 is configured to irrigate or suction fluids deep within the sinuses, as well as other areas within the paranasal space. Medical device 100 is sized appropriately to be delivered into adult as well as pediatric sinuses, including maxillary, sphenoid, ethmoid and frontal sinuses. Further, the devices of the invention may be useful for the treatment of the Eustachian tube or through an incision to access the middle ear. Medical device 100 can also be used to deliver diagnostic or therapeutic substances into the sinuses or other areas in the paranasal space.
- diagnostic or therapeutic substances include, but are not limited to: contrast agents, pharmaceutically acceptable salt or dosage form of an antimicrobial agent (e.g., antibiotic, antiviral, anti-parasitic, antifungal, etc.), a corticosteroid or other anti-inflammatory (e.g., an NSAID), a decongestant (e.g., vasoconstrictor), a mucous thinning agent (e.g., an expectorant or mucolytic), an anesthetic agent with or without vasoconstrictor (e.g., Xylocaine with or without epinephrine, Tetracaine with or without epinephrine), an analgesic agent, an agent (anti-allergenic agent) that prevents of modifies an allergic response (e.g., an antihistamine, cytokine inhibitor, leucotriene inhibitor, IgE inhibitor,
- an antimicrobial agent e.g., antibiotic, antiviral, anti-parasitic, antifung
- immunomodulator an allergen or another substance that causes secretion of mucous by tissues, anti-proliferative agents, hemostatic agents to stop bleeding, cytotoxic agents e.g. alcohol, and biological agents such as protein molecules, stem cells, genes or gene therapy preparations.
- medical device may include a forward facing tip opening 1 14 three radially facing openings 1 12 a, 1 12b, and 1 12c, on irrigation tip 106 spaced 120 degrees apart, with the inner diameter of the forward facing tip opening being 0.037 inches and each of the side openings having a inner diameter of 0.026 inches and the inner diameter of the irrigation lumen proximal of the atraumatic tip is about 0.042 inches.
- Alternative embodiments may include any suitable alternative number of side openings distributed in any suitable pattern such as a helical pattern.
- a first side opening may be placed at about 2.5 mm from the distal end of medical device 100
- a second side opening may be placed at about 3.5 mm from the distal end of medical device 100
- a third side opening may be placed at about 4.5 mm from the distal end of medical device 100, with each of these measurements being from the distal end to approximately the center of each side opening.
- the length of the irrigation tip from the distal end of the medical device 100 to the distal end of the balloon 104 is approximately 7 mm.
- Each side opening may have any suitable diameter in various alternative embodiments.
- each side opening may have a diameter of between about 0.020 inches and about 0.050 inches and or between about 0.030 inches and about 0.040 inches and or about 0.033 inches, so long as the diameter of the irrigation lumen of the irrigation tip proximal of the atraumatic tip is larger than the diameter of the forward facing tip opening.
- the medical device 100 may contain an integrated guidewire such that there is no irrigation from the distal end of the device, but only from the radially facing openings.
Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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BR112014001928A BR112014001928A2 (en) | 2011-07-25 | 2012-07-16 | devices and methods for transnasal dilation and paranasal sinuses irrigation |
CN201280036891.5A CN103945895B (en) | 2011-07-25 | 2012-07-16 | Intranasal expansion and the apparatus and method rinsed for nasal sinus |
EP12742999.1A EP2736579B1 (en) | 2011-07-25 | 2012-07-16 | Devices and methods for transnasal dilation and irrigation of the sinuses |
CA2843145A CA2843145A1 (en) | 2011-07-25 | 2012-07-16 | Devices and methods for transnasal dilation and irrigation of the sinuses |
MX2014001001A MX2014001001A (en) | 2011-07-25 | 2012-07-16 | Devices and methods for transnasal dilation and irrigation of the sinuses. |
AU2012287321A AU2012287321A1 (en) | 2011-07-25 | 2012-07-16 | Devices and methods for transnasal dilation and irrigation of the sinuses |
ES12742999.1T ES2560469T3 (en) | 2011-07-25 | 2012-07-16 | Devices and methods for transnasal dilation and irrigation of the sinuses |
JP2014522870A JP6352180B2 (en) | 2011-07-25 | 2012-07-16 | Device and method for nasal dilatation and irrigation of sinuses |
RU2014106870/14A RU2014106870A (en) | 2011-07-25 | 2012-07-16 | DEVICES AND METHODS OF TRANSNASAL EXTENSION AND SINUS IRRIGATION |
KR1020147004488A KR102015262B1 (en) | 2011-07-25 | 2012-07-16 | Devices and methods for transnasal dilation and irrigation of the sinuses |
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EP (1) | EP2736579B1 (en) |
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ES (1) | ES2560469T3 (en) |
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- 2012-07-16 BR BR112014001928A patent/BR112014001928A2/en not_active IP Right Cessation
- 2012-07-16 CN CN201280036891.5A patent/CN103945895B/en not_active Expired - Fee Related
- 2012-07-16 US US13/550,293 patent/US9095646B2/en active Active
- 2012-07-16 MX MX2014001001A patent/MX2014001001A/en not_active Application Discontinuation
- 2012-07-16 CA CA2843145A patent/CA2843145A1/en not_active Abandoned
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- 2012-07-16 AU AU2012287321A patent/AU2012287321A1/en not_active Abandoned
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US11167080B2 (en) | 2012-04-13 | 2021-11-09 | Acclarent, Inc. | Balloon dilation catheter system for treatment and irrigation of the sinuses |
US11844539B2 (en) | 2012-04-13 | 2023-12-19 | Acclarent, Inc. | Balloon dilation catheter system for treatment and irrigation of the sinuses |
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WO2019171359A1 (en) * | 2018-03-09 | 2019-09-12 | Acclarent, Inc. | Fluid fitting for dilation instrument |
US11272946B2 (en) | 2018-03-09 | 2022-03-15 | Acclarent, Inc. | Fluid fitting for dilation instrument |
Also Published As
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BR112014001928A2 (en) | 2017-02-21 |
CN103945895A (en) | 2014-07-23 |
WO2013016056A3 (en) | 2013-07-04 |
ES2560469T3 (en) | 2016-02-19 |
US20150328394A1 (en) | 2015-11-19 |
MX2014001001A (en) | 2014-05-13 |
JP2014521438A (en) | 2014-08-28 |
JP6352180B2 (en) | 2018-07-04 |
US9095646B2 (en) | 2015-08-04 |
RU2014106870A (en) | 2015-08-27 |
EP2736579A2 (en) | 2014-06-04 |
CA2843145A1 (en) | 2013-01-31 |
EP2736579B1 (en) | 2015-10-28 |
US20130184683A1 (en) | 2013-07-18 |
AU2012287321A1 (en) | 2014-02-13 |
KR102015262B1 (en) | 2019-10-21 |
CN103945895B (en) | 2018-02-02 |
KR20140049566A (en) | 2014-04-25 |
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