US20040171942A1 - Esophageal balloon catheter device - Google Patents
Esophageal balloon catheter device Download PDFInfo
- Publication number
- US20040171942A1 US20040171942A1 US10/793,299 US79329904A US2004171942A1 US 20040171942 A1 US20040171942 A1 US 20040171942A1 US 79329904 A US79329904 A US 79329904A US 2004171942 A1 US2004171942 A1 US 2004171942A1
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- US
- United States
- Prior art keywords
- catheter
- balloon
- stylet
- pressure transducer
- coupler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/42—Detecting, measuring or recording for evaluating the gastrointestinal, the endocrine or the exocrine systems
- A61B5/4222—Evaluating particular parts, e.g. particular organs
- A61B5/4233—Evaluating particular parts, e.g. particular organs oesophagus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/036—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs by means introduced into body tracts
- A61B5/037—Measuring oesophageal pressure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/085—Measuring impedance of respiratory organs or lung elasticity
-
- 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
Definitions
- the present invention relates to a device that provides a conduit through which intra-thoracic pressures can be monitored and measured. More particularly, the present invention relates to an improved esophageal balloon catheter device that is used to obtain esophageal pressure data for evaluating, treating and diagnosing patients with various respiratory conditions and diseases.
- Esophageal balloon catheter devices are commonly used as a research or clinical tool in the study of lung mechanics. Specifically, many investigators have utilized esophageal balloons to characterize the mechanical properties of the lung in both health and in disease as well as in determining the work or effort of breathing.
- esophageal balloon catheter devices have been used as part of monitoring systems for diagnosing sleep disorders, the clinical management of ventilator patients, as well as a part of pulmonary function systems in the measurement of lung mechanics.
- Typical esophageal balloon catheter devices employ an air-containing balloon sealed over the distal or near distal end of a catheter that transmits balloon pressure to a pressure transducer attached to the proximal end of the catheter.
- a pressure transducer in this context converts mechanical energy (balloon pressure) into electrical signals and units of measurement.
- the balloon of the catheter is usually positioned in the lower or middle third of the esophagus to monitor esophageal pressure to determine lung compliance and respiratory effort.
- the catheter used in these devices is sometimes constructed to be stiff and rigid enough to allow insertion through the nasal passage and down into the esophagus.
- a serious disadvantage of these devices is that they are uncomfortable to patients being monitored to an extent that the pressure data may be affected as well as the patient's ability to sleep.
- the catheter used in these devices may also be constructed to be limp and flaccid to provide comfort during overnight esophageal pressure testing.
- the limp and flaccid nature of the catheter makes it virtually impossible to insert it into the esophagus.
- such a catheter device includes a removable stylet assembly, which consists of a wire that is inserted into the lumen of the catheter at the proximal end thereof to stiffen the catheter so that it can be inserted into the esophagus and the balloon properly positioned therein.
- a removable stylet assembly which consists of a wire that is inserted into the lumen of the catheter at the proximal end thereof to stiffen the catheter so that it can be inserted into the esophagus and the balloon properly positioned therein.
- a major disadvantage of these devices is that it is very difficult to position the balloon correctly in the esophagus.
- the stylet is removed and the pressure transducer attached, it is often discovered that the balloon is not properly positioned in the esophagus. Because the catheter is so soft and flaccid this necessitates removing the pressure transducer and reinserting the stylet into the catheter to stiffen it so that the position of the balloon can be corrected.
- reinserting the stylet assembly into the catheter is extremely dangerous as it can puncture the catheter and the esophagus.
- An esophageal catheter device comprises a catheter with a balloon as pressure sensor affixed to an exterior surface of the catheter, and a stylet assembly including a stylet for preventing bending and flexing of the catheter during insertion in the esophagus and a port for removably attaching a pressure transducer.
- FIG. 1 is an elevational view of an esophageal balloon catheter device according to an exemplary embodiment of the present invention
- FIG. 2 is a sectional view of a balloon air pressure sensor according to an exemplary embodiment of the catheter device of the present invention
- FIG. 3 is a side elevational view of an exemplary stylet transducer coupler assembly according to an exemplary embodiment of the catheter device of the present invention
- FIG. 4 is a side elevational view showing a pressure transducer mounted to the transducer port of the coupler assembly.
- FIG. 5 is a side elevational view showing a pressure transducer mounted to a hub connector of the catheter device.
- the catheter device 10 generally comprises a catheter 12 , a pressure sensor 14 sealingly affixed to the exterior surface of the catheter 12 in a conventional manner, and a stylet transducer coupler assembly 16 having a transducer port 18 for mounting a pressure transducer which may be used for correctly positioning the pressure sensor 14 of the device in the esophagus.
- the ability to attach a pressure transducer to the coupler assembly 16 substantially eliminates the need for guess work when placing the pressure sensor 14 in the esophagus.
- the catheter 12 typically comprises a 5 french, pliable and soft tubular body 20 which maximizes patient comfort and minimizes effects on normal breathing.
- the catheter 12 has a length which, in one exemplary embodiment, may be about 87 cm when sized for an adult.
- a conventional female Luer hub connector 22 or other suitable connector may be provided at a proximal end 24 of the catheter 12 for permitting a pressure transducer to be easily connected to the catheter 12 as explained further on.
- the catheter 12 defines an inflation lumen 26 that typically extends within the catheter 12 such that it communicates with the interior of the pressure sensor 14 via one or more openings 28 located in a wall portion of the catheter 12 enclosed by the pressure sensor 14 .
- the catheter 12 is preferably made from a radio-opaque material such as poly(vinyl chloride) or polyurethane.
- the catheter 12 may be provided with a plurality of depth markings 30 , typically in the form of circumferential gradations.
- the markings 30 are preferably of a type that can be easily seen, therefore, further aiding the user of the catheter device 10 to appropriately position the pressure sensor 14 within the esophagus or other part of the body of the patient.
- the pressure sensor 14 preferably comprises an elongated balloon 15 element having a length which is typically about 10 cm and about 3-4 cc in air capacity, although the exact size of the balloon 14 may be selected so that when positioned within the esophagus, it occupies the lower third of the thorax to properly represent intra-thoracic pressure oscillation independent of cardiac oscillation.
- the balloon 15 may be made from a soft, preferably latex free material such as poly(vinyl chloride) or polyurethane.
- the distal-most end 32 of the pressure sensor 14 is located about 5 cm from the distal end of the catheter 12 offering a thin lead ahead of the balloon to ease passage through the nasal passages, oral pharynx and esophagus.
- the pressure sensor 14 of the catheter device 10 monitors esophageal pressure in the following manner.
- the balloon 15 is only partially filled with air (about 1 cc) as it rests inside the esophagus.
- intra-thoracic pressure becomes sub-atmospheric (negative).
- the sub-atmospheric pressure is applied to the walls of the pressure sensor balloon attempting to more fully expand or fill the balloon.
- intra-thoracic pressure becomes positive.
- the positive pressure is applied to the walls of the pressure sensor balloon attempting to collapse or empty the balloon.
- the conduit defined by the inflation lumen 26 of the catheter 12 connects the pressure sensor balloon 14 to a transducer attached to the port 18 .
- the lumen 26 channels air and pressure into the balloon 15 through the one or more openings 28 in the catheter wall that pass directly to the inside of the balloon 15 .
- the pressure in the balloon 15 is transmitted to the proximal end of the lumen 26 which communicates with a pressure transducer 50 via the stylet transducer coupler assembly 16 as shown in FIG. 4 or via the hub connector 22 as shown in FIG. 5.
- the pressure transducer converts the positive and negative esophageal pressure oscillations (mechanical energy) to electronic signals and units of pressure. The esophageal pressures of the person receiving the catheter device 10 will be reflected by air pressure changes within the balloon 15 .
- the stylet transducer coupler assembly 16 of the catheter device 10 comprises a coupler 34 and a stylet 36 .
- the coupler 34 includes a substantially straight main tube section 38 having distal 40 and proximal ends 42 , and the earlier mentioned transducer port tube 18 .
- the distal end 40 of the main tube section 38 is tapered to permit the coupler 34 to be received within the hub connector 22 of the catheter 12 in a friction fit manner.
- the proximal end 42 of the main tube section 38 is sealed by a cap-like closure 44 .
- the stylet 36 is a wire-like member, the proximal end of which may be permanently affixed to a cylindrical portion 46 of the closure 44 extending into the main tube section 38 .
- the stylet 36 of the transducer coupler assembly 16 is threaded through the inflation lumen 26 of the catheter 12 (FIG. 2) adding rigidity to the catheter 12 , hence aiding the insertion thereof into the esophagus and the positioning of the pressure sensor 14 therein. It is preferred that the distal end 48 of the stylet 36 be blunt (FIG. 2), with a rounded tip, and that the entire stylet be coated with PTFE to aid in removing it from the inflation lumen 26 after the balloon is properly placed.
- the transducer port 18 of the stylet coupler assembly 16 is adapted to accept a standard pressure transducer 50 to the coupler assembly 16 so that the transducer 50 , in conjunction with the pressure sensor 14 , may be used in concert for correctly positioning the pressure sensor in the esophagus.
- the pressure transducer 50 is then removed from the port 18 of the coupler assembly 16 .
- the stylet transducer coupler assembly 16 is withdrawn from the catheter 12 .
- the pressure transducer 50 may then be attached to the connector 22 of the catheter 12 and operated in conjunction with the pressure sensor 14 to monitor esophageal pressure.
Abstract
An esophageal catheter device including a catheter with a balloon pressure sensor affixed to an exterior surface of the catheter, and a stylet assembly including a stylet for providing appropriate rigidity to the catheter to aid insertion in the esophagus and a port for removably mounting a pressure transducer.
Description
- The present invention relates to a device that provides a conduit through which intra-thoracic pressures can be monitored and measured. More particularly, the present invention relates to an improved esophageal balloon catheter device that is used to obtain esophageal pressure data for evaluating, treating and diagnosing patients with various respiratory conditions and diseases.
- Esophageal balloon catheter devices are commonly used as a research or clinical tool in the study of lung mechanics. Specifically, many investigators have utilized esophageal balloons to characterize the mechanical properties of the lung in both health and in disease as well as in determining the work or effort of breathing.
- More recently, esophageal balloon catheter devices have been used as part of monitoring systems for diagnosing sleep disorders, the clinical management of ventilator patients, as well as a part of pulmonary function systems in the measurement of lung mechanics.
- Typical esophageal balloon catheter devices employ an air-containing balloon sealed over the distal or near distal end of a catheter that transmits balloon pressure to a pressure transducer attached to the proximal end of the catheter. A pressure transducer in this context converts mechanical energy (balloon pressure) into electrical signals and units of measurement. The balloon of the catheter is usually positioned in the lower or middle third of the esophagus to monitor esophageal pressure to determine lung compliance and respiratory effort. As is known; during inhalation the pressure in the esophagus and thorax decreases, while it increases in the viscera below the diaphragm and during exhalation the pressure in the esophagus and thorax increases while it decreases in the viscera below the diaphragm
- The catheter used in these devices is sometimes constructed to be stiff and rigid enough to allow insertion through the nasal passage and down into the esophagus. A serious disadvantage of these devices is that they are uncomfortable to patients being monitored to an extent that the pressure data may be affected as well as the patient's ability to sleep. The catheter used in these devices may also be constructed to be limp and flaccid to provide comfort during overnight esophageal pressure testing. However, the limp and flaccid nature of the catheter makes it virtually impossible to insert it into the esophagus. Accordingly, such a catheter device includes a removable stylet assembly, which consists of a wire that is inserted into the lumen of the catheter at the proximal end thereof to stiffen the catheter so that it can be inserted into the esophagus and the balloon properly positioned therein. Once the balloon of the catheter device is positioned in the esophagus, the stylet assembly needs to be removed so the pressure transducer can be attached to the proximal end of the catheter.
- A major disadvantage of these devices is that it is very difficult to position the balloon correctly in the esophagus. There is an advantage in being able to monitor esophageal pressure oscillation while positioning the balloon in the esophagus. This is possible with the stiffer more rigid catheters but not with the more comfortable soft and flaccid catheters. Once the stylet is removed and the pressure transducer attached, it is often discovered that the balloon is not properly positioned in the esophagus. Because the catheter is so soft and flaccid this necessitates removing the pressure transducer and reinserting the stylet into the catheter to stiffen it so that the position of the balloon can be corrected. Unfortunately, reinserting the stylet assembly into the catheter is extremely dangerous as it can puncture the catheter and the esophagus.
- Accordingly, there is a need for an improved esophageal balloon catheter device, which is soft and flaccid for comfort and yet allows for monitoring esophageal pressure oscillation to aid proper positioning of the balloon. Such a device would avoid the need for removal of the stylet to attach the pressure transducer and the subsequent risk of reinserting the stylet assembly for balloon repositioning.
- An esophageal catheter device comprises a catheter with a balloon as pressure sensor affixed to an exterior surface of the catheter, and a stylet assembly including a stylet for preventing bending and flexing of the catheter during insertion in the esophagus and a port for removably attaching a pressure transducer.
- The advantages, nature, and various additional features of the invention will appear more fully upon consideration of the illustrative embodiments now to be described in detail in connection with accompanying drawings wherein:
- FIG. 1 is an elevational view of an esophageal balloon catheter device according to an exemplary embodiment of the present invention;
- FIG. 2 is a sectional view of a balloon air pressure sensor according to an exemplary embodiment of the catheter device of the present invention;
- FIG. 3 is a side elevational view of an exemplary stylet transducer coupler assembly according to an exemplary embodiment of the catheter device of the present invention;
- FIG. 4 is a side elevational view showing a pressure transducer mounted to the transducer port of the coupler assembly; and
- FIG. 5 is a side elevational view showing a pressure transducer mounted to a hub connector of the catheter device.
- Referring to the drawings wherein like reference numerals identify similar or like elements throughout the several views and initially to FIG. 1, there is shown an esophageal
balloon catheter device 10 according to an exemplary embodiment of the invention. Thecatheter device 10 generally comprises acatheter 12, apressure sensor 14 sealingly affixed to the exterior surface of thecatheter 12 in a conventional manner, and a stylettransducer coupler assembly 16 having atransducer port 18 for mounting a pressure transducer which may be used for correctly positioning thepressure sensor 14 of the device in the esophagus. The ability to attach a pressure transducer to thecoupler assembly 16 substantially eliminates the need for guess work when placing thepressure sensor 14 in the esophagus. - The
catheter 12 typically comprises a 5 french, pliable and softtubular body 20 which maximizes patient comfort and minimizes effects on normal breathing. Thecatheter 12 has a length which, in one exemplary embodiment, may be about 87 cm when sized for an adult. A conventional femaleLuer hub connector 22 or other suitable connector may be provided at aproximal end 24 of thecatheter 12 for permitting a pressure transducer to be easily connected to thecatheter 12 as explained further on. As shown in FIG. 2, thecatheter 12 defines an inflation lumen 26 that typically extends within thecatheter 12 such that it communicates with the interior of thepressure sensor 14 via one or more openings 28 located in a wall portion of thecatheter 12 enclosed by thepressure sensor 14. - The
catheter 12 is preferably made from a radio-opaque material such as poly(vinyl chloride) or polyurethane. Thecatheter 12 may be provided with a plurality ofdepth markings 30, typically in the form of circumferential gradations. Themarkings 30 are preferably of a type that can be easily seen, therefore, further aiding the user of thecatheter device 10 to appropriately position thepressure sensor 14 within the esophagus or other part of the body of the patient. - The
pressure sensor 14 preferably comprises anelongated balloon 15 element having a length which is typically about 10 cm and about 3-4 cc in air capacity, although the exact size of theballoon 14 may be selected so that when positioned within the esophagus, it occupies the lower third of the thorax to properly represent intra-thoracic pressure oscillation independent of cardiac oscillation. Theballoon 15 may be made from a soft, preferably latex free material such as poly(vinyl chloride) or polyurethane. Thedistal-most end 32 of thepressure sensor 14 is located about 5 cm from the distal end of thecatheter 12 offering a thin lead ahead of the balloon to ease passage through the nasal passages, oral pharynx and esophagus. - In operation, the
pressure sensor 14 of thecatheter device 10 monitors esophageal pressure in the following manner. Theballoon 15 is only partially filled with air (about 1 cc) as it rests inside the esophagus. During inhalation intra-thoracic pressure becomes sub-atmospheric (negative). The sub-atmospheric pressure is applied to the walls of the pressure sensor balloon attempting to more fully expand or fill the balloon. During exhalation intra-thoracic pressure becomes positive. The positive pressure is applied to the walls of the pressure sensor balloon attempting to collapse or empty the balloon. The conduit defined by the inflation lumen 26 of thecatheter 12 connects thepressure sensor balloon 14 to a transducer attached to theport 18. It is important that the pressure sensor balloon has the correct amount of residual air so slight changes in intra-thoracic pressures are transmitted to the transducer without the distortion of any elastic properties from the balloon wall stretching. The lumen 26 channels air and pressure into theballoon 15 through the one or more openings 28 in the catheter wall that pass directly to the inside of theballoon 15. The pressure in theballoon 15 is transmitted to the proximal end of the lumen 26 which communicates with apressure transducer 50 via the stylettransducer coupler assembly 16 as shown in FIG. 4 or via thehub connector 22 as shown in FIG. 5. The pressure transducer converts the positive and negative esophageal pressure oscillations (mechanical energy) to electronic signals and units of pressure. The esophageal pressures of the person receiving thecatheter device 10 will be reflected by air pressure changes within theballoon 15. - As shown in FIG. 3, the stylet
transducer coupler assembly 16 of thecatheter device 10 comprises acoupler 34 and astylet 36. Thecoupler 34 includes a substantially straightmain tube section 38 having distal 40 and proximal ends 42, and the earlier mentionedtransducer port tube 18. Thedistal end 40 of themain tube section 38 is tapered to permit thecoupler 34 to be received within thehub connector 22 of thecatheter 12 in a friction fit manner. The proximal end 42 of themain tube section 38 is sealed by a cap-like closure 44. Thestylet 36 is a wire-like member, the proximal end of which may be permanently affixed to a cylindrical portion 46 of theclosure 44 extending into themain tube section 38. - The
stylet 36 of thetransducer coupler assembly 16 is threaded through the inflation lumen 26 of the catheter 12 (FIG. 2) adding rigidity to thecatheter 12, hence aiding the insertion thereof into the esophagus and the positioning of thepressure sensor 14 therein. It is preferred that the distal end 48 of thestylet 36 be blunt (FIG. 2), with a rounded tip, and that the entire stylet be coated with PTFE to aid in removing it from the inflation lumen 26 after the balloon is properly placed. - The
transducer port 18 of thestylet coupler assembly 16 is adapted to accept astandard pressure transducer 50 to thecoupler assembly 16 so that thetransducer 50, in conjunction with thepressure sensor 14, may be used in concert for correctly positioning the pressure sensor in the esophagus. Once the pressure sensor is correctly positioned in the esophagus, thepressure transducer 50 is then removed from theport 18 of thecoupler assembly 16. The stylettransducer coupler assembly 16 is withdrawn from thecatheter 12. Thepressure transducer 50 may then be attached to theconnector 22 of thecatheter 12 and operated in conjunction with thepressure sensor 14 to monitor esophageal pressure. - While the foregoing invention has been described with reference to the above embodiments, various modifications and changes can be made without departing from the spirit of the invention. Accordingly, all such modifications and changes are considered to be within the scope of the appended claims.
Claims (20)
1. An esophageal catheter device comprising:
a catheter including an open end and a closed end, the closed end for removably mounting one of a pressure transducer and removably receiving a stylet;
a balloon affixed to an exterior surface of the catheter, the balloon useable as a pressure sensor;
a balloon inflation lumen extending through the catheter in communication with the interior of the balloon through at least one aperture extending through the catheter; and
a stylet assembly including a stylet for providing appropriate rigidity to the catheter to aid insertion into the esophagus and a port for removably mounting a pressure transducer.
2. The esophageal catheter device according to claim 1 , wherein the stylet assembly further includes a coupler.
3. The esophageal catheter device according to claim 2 , wherein the coupler includes the port for mounting the pressure transducer.
4. The esophageal catheter device according to claim 2 , wherein the coupler includes a main tube section, the port for mounting the pressure transducer extending from the main tube section.
5. The esophageal catheter device according to claim 1 , wherein the catheter includes a plurality of depth markings.
6. The esophageal catheter device according to claim 1 , wherein the stylet assembly further includes a coupler and a closure sealing an end of the coupler, the stylet having an end affixed to a portion of the closure.
7. The esophageal catheter device according to claim 6 , wherein the coupler includes the port for mounting the pressure transducer.
8. The esophageal catheter device according to claim 1 , further comprising a hub connector disposed at the open end of the catheter.
9. The esophageal catheter device according to claim 1 , wherein the catheter is made from a radio-opaque material.
10. The esophageal catheter device according to claim 1 , wherein the balloon is made from a latex-free material.
11. A stylet assembly for an esophageal catheter device having a balloon affixed to an exterior surface of the catheter, the balloon useable as a pressure sensor; the stylet assembly comprising:
a coupler;
a stylet having an end affixed to the coupler; and
a port extending from the coupler for removably mounting a pressure transducer.
12. The stylet assembly according to claim 11 , wherein the coupler includes a main tube section, the port for mounting the pressure transducer extending from the main tube section.
13. The stylet assembly according to claim 11 , wherein the stylet assembly further includes a closure sealing an end of the coupler, the stylet having an end affixed to a portion of the closure.
14. A method for intra-thoracic pressure monitoring, the method comprising the steps of:
providing an esophageal catheter device including a catheter, a balloon affixed to an exterior surface of the catheter, the balloon useable as a pressure sensor, a balloon inflation lumen extending through the catheter in communication with the interior of the balloon through at least one aperture extending through the catheter, and a stylet assembly including a stylet for providing appropriate rigidity to the catheter to aid insertion in the esophagus and a port for removably mounting a pressure transducer;
mounting a pressure transducer to the port of the stylet assembly;
inserting the catheter device into an esophagus;
adding the correct amount of air to the sensor balloon;
positioning the sensor balloon of the catheter device in a desired location in the esophagus using pressure information obtained through the sensor balloon, the stylet assembly and pressure transducer working in concert.
15. The method according to claim 14 , further comprising the steps of:
removing the pressure transducer from the port;
removing the stylet assembly from the open end of the catheter;
mounting the pressure transducer to the open end of the catheter; and
monitoring esophageal pressure using pressure information obtained through the sensor balloon and the pressure transducer working in concert.
16. The method according to claim 14 , wherein the stylet assembly further includes a coupler.
17. The method according to claim 16 , wherein the coupler includes the port for mounting the pressure transducer.
18. The method according to claim 16 , wherein the coupler includes a main tube section, the port for mounting the pressure transducer extending from the main tube section.
19. The method according to claim 14 , wherein the catheter is made from a radio-opaque material.
20. The method according to claim 14 , wherein the balloon is made from a latex-free material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/793,299 US20040171942A1 (en) | 2001-03-14 | 2004-03-04 | Esophageal balloon catheter device |
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Application Number | Priority Date | Filing Date | Title |
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US09/808,080 US6723053B2 (en) | 2001-03-14 | 2001-03-14 | Esophageal balloon catheter device |
US10/793,299 US20040171942A1 (en) | 2001-03-14 | 2004-03-04 | Esophageal balloon catheter device |
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US09/808,080 Division US6723053B2 (en) | 2001-03-14 | 2001-03-14 | Esophageal balloon catheter device |
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US09/808,080 Expired - Fee Related US6723053B2 (en) | 2001-03-14 | 2001-03-14 | Esophageal balloon catheter device |
US10/793,299 Abandoned US20040171942A1 (en) | 2001-03-14 | 2004-03-04 | Esophageal balloon catheter device |
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US09/808,080 Expired - Fee Related US6723053B2 (en) | 2001-03-14 | 2001-03-14 | Esophageal balloon catheter device |
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US20080033415A1 (en) * | 2006-03-17 | 2008-02-07 | Rieker Gregory B | Method and apparatus to prevent esophageal damage |
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US20040226556A1 (en) | 2003-05-13 | 2004-11-18 | Deem Mark E. | Apparatus for treating asthma using neurotoxin |
US7261730B2 (en) * | 2003-11-14 | 2007-08-28 | Lumerx, Inc. | Phototherapy device and system |
US20070196269A1 (en) * | 2003-12-19 | 2007-08-23 | Karl-Hermann Schlingensiepen | Pharmaceutical composition |
US8025638B2 (en) * | 2004-05-21 | 2011-09-27 | Keio University | Balloon catheter, medical apparatus and method for treating living organ |
US20060100492A1 (en) * | 2004-10-29 | 2006-05-11 | Medtronic, Inc. | Intra-esophageal catheter |
AU2006277553A1 (en) * | 2005-08-11 | 2007-02-15 | Stimplant Ltd. | Implantable device for obesity prevention |
US9011328B2 (en) * | 2005-10-18 | 2015-04-21 | Pneumoflex Systems, Llc | Oral-esophageal-gastric device with esophageal cuff to reduce gastric reflux and/or emesis |
US8597184B2 (en) | 2005-10-18 | 2013-12-03 | Pneumoflex Systems, Llc | Techniques for evaluating urinary stress incontinence and use of involuntary reflex cough as a medical diagnostic tool |
US9028406B2 (en) * | 2005-10-18 | 2015-05-12 | Pneumoflex Systems, Llc | Oral-esophageal-gastric device to diagnose reflux and/or emesis |
US9033896B2 (en) * | 2006-07-13 | 2015-05-19 | Mayo Foundation For Medical Education And Research | Obtaining a tissue sample |
US20100113939A1 (en) * | 2006-10-02 | 2010-05-06 | Hiroshi Mashimo | Smart balloon catheter |
CN1935286B (en) * | 2006-10-19 | 2010-08-18 | 王书文 | Esophageal cavity applicator fixing device |
US10182833B2 (en) | 2007-01-08 | 2019-01-22 | Ekos Corporation | Power parameters for ultrasonic catheter |
EP2155300A1 (en) | 2007-04-05 | 2010-02-24 | Velomedix, Inc | Automated therapy system and method |
ES2471118T3 (en) | 2007-06-22 | 2014-06-25 | Ekos Corporation | Method and apparatus for the treatment of intracranial hemorrhages |
US7963929B2 (en) | 2007-09-21 | 2011-06-21 | Dtherapeutics, Llc | Devices and systems for sizing of a gastric pouch |
US8483831B1 (en) | 2008-02-15 | 2013-07-09 | Holaira, Inc. | System and method for bronchial dilation |
US9833149B2 (en) * | 2008-03-18 | 2017-12-05 | Circa Scientific, Llc | Methods, apparatus and systems for facilitating introduction of shaped medical instruments into the body of a subject |
WO2009117523A2 (en) | 2008-03-18 | 2009-09-24 | Circa Medical, Llc | Large surface area temperature sensing device |
US9023062B2 (en) | 2008-04-17 | 2015-05-05 | Apollo Endosurgery, Inc. | Implantable access port device and attachment system |
US9023063B2 (en) | 2008-04-17 | 2015-05-05 | Apollo Endosurgery, Inc. | Implantable access port device having a safety cap |
EP2662046B1 (en) | 2008-05-09 | 2023-03-15 | Nuvaira, Inc. | Systems and assemblies for treating a bronchial tree |
CN102264423A (en) * | 2008-10-24 | 2011-11-30 | 呼吸医疗技术有限公司 | Method and system for ventilation |
US8708979B2 (en) | 2009-08-26 | 2014-04-29 | Apollo Endosurgery, Inc. | Implantable coupling device |
US8715158B2 (en) * | 2009-08-26 | 2014-05-06 | Apollo Endosurgery, Inc. | Implantable bottom exit port |
US8506532B2 (en) * | 2009-08-26 | 2013-08-13 | Allergan, Inc. | System including access port and applicator tool |
CN107049479B (en) | 2009-10-27 | 2020-10-16 | 努瓦拉公司 | Delivery device with coolable energy emitting assembly |
US8911439B2 (en) | 2009-11-11 | 2014-12-16 | Holaira, Inc. | Non-invasive and minimally invasive denervation methods and systems for performing the same |
KR101820542B1 (en) | 2009-11-11 | 2018-01-19 | 호라이라 인코포레이티드 | Systems, apparatuses, and methods for treating tissue and controlling stenosis |
US20110196195A1 (en) * | 2010-02-05 | 2011-08-11 | Allergan, Inc. | Implantable subcutaneous access port |
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US8992415B2 (en) | 2010-04-30 | 2015-03-31 | Apollo Endosurgery, Inc. | Implantable device to protect tubing from puncture |
US20110270021A1 (en) | 2010-04-30 | 2011-11-03 | Allergan, Inc. | Electronically enhanced access port for a fluid filled implant |
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US20120065460A1 (en) | 2010-09-14 | 2012-03-15 | Greg Nitka | Implantable access port system |
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US8821373B2 (en) | 2011-05-10 | 2014-09-02 | Apollo Endosurgery, Inc. | Directionless (orientation independent) needle injection port |
US8801597B2 (en) | 2011-08-25 | 2014-08-12 | Apollo Endosurgery, Inc. | Implantable access port with mesh attachment rivets |
US9199069B2 (en) | 2011-10-20 | 2015-12-01 | Apollo Endosurgery, Inc. | Implantable injection port |
US8858421B2 (en) | 2011-11-15 | 2014-10-14 | Apollo Endosurgery, Inc. | Interior needle stick guard stems for tubes |
US9089395B2 (en) | 2011-11-16 | 2015-07-28 | Appolo Endosurgery, Inc. | Pre-loaded septum for use with an access port |
US10806882B2 (en) | 2012-01-03 | 2020-10-20 | Hospitech Respiration Ltd. | System and method for controlling and monitoring flow in an endotracheal tube |
US9398933B2 (en) | 2012-12-27 | 2016-07-26 | Holaira, Inc. | Methods for improving drug efficacy including a combination of drug administration and nerve modulation |
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WO2014159274A1 (en) | 2013-03-14 | 2014-10-02 | Ekos Corporation | Method and apparatus for drug delivery to a target site |
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WO2018035000A1 (en) * | 2016-08-13 | 2018-02-22 | Ecom Medical, Inc. | Medical devices with layered conductive elements and methods for manufacturing the same |
US10709475B2 (en) | 2018-03-07 | 2020-07-14 | Edward J. Mikol | Pumping surgical cannula |
CN109091110B (en) * | 2018-08-13 | 2021-04-13 | 重庆金山医疗器械有限公司 | Esophagus pressure measurement identification recognition system, electronic equipment and storage medium |
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CA3142032A1 (en) * | 2019-08-26 | 2021-03-04 | Boston Scientific Scimed, Inc. | Devices, systems, and methods for a catheter accessory |
DE102020120900A1 (en) * | 2020-08-07 | 2022-02-10 | Drägerwerk AG & Co. KGaA | Device and method for measuring lung compliance |
CN116761543A (en) * | 2020-12-25 | 2023-09-15 | 深圳迈瑞生物医疗电子股份有限公司 | Medical equipment and position prompting method of esophageal pressure measuring device thereof |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US586892A (en) * | 1897-07-20 | Victor angerer | ||
US3480003A (en) * | 1967-02-03 | 1969-11-25 | Battelle Development Corp | Apparatus for measuring esophageal motility |
US3710781A (en) * | 1970-10-12 | 1973-01-16 | T Huthcins | Catheter tip pressure transducer |
US4214593A (en) * | 1978-09-18 | 1980-07-29 | Mallinckrodt, Inc. | Esophageal pressure monitoring device |
US4981470A (en) * | 1989-06-21 | 1991-01-01 | Synectics Medical, Inc. | Intraesophageal catheter with pH sensor |
US5117828A (en) * | 1989-09-25 | 1992-06-02 | Arzco Medical Electronics, Inc. | Expandable esophageal catheter |
US5117839A (en) * | 1990-09-18 | 1992-06-02 | Lake Region Manufacturing Co., Inc. | Exchangeable fixed wire catheter |
US5295968A (en) * | 1992-08-19 | 1994-03-22 | Wilson-Cook Medical Inc. | Stylet wire assembly |
US5419340A (en) * | 1993-10-27 | 1995-05-30 | Stevens; Robert C. | Guidable catheter assembly using coated deflector wire and method of using same |
US5716318A (en) * | 1995-04-14 | 1998-02-10 | The University Of North Carolina At Chapel Hill | Method of treating cardiac arrest and apparatus for same |
US5836895A (en) * | 1995-01-09 | 1998-11-17 | Arzco Medical Systems, Inc. | Esophageal catheter with gauge |
US5836951A (en) * | 1986-12-09 | 1998-11-17 | Boston Scientific Corporation | Balloon dilation catheter |
US5921935A (en) * | 1989-09-18 | 1999-07-13 | The Research Foundation Of State University Of New York | Method and apparatus utilizing heart sounds for determining pressures associated with the left atrium |
US6259938B1 (en) * | 1998-05-15 | 2001-07-10 | Respironics, Inc. | Monitoring catheter and method of using same |
US6322840B2 (en) * | 1999-03-16 | 2001-11-27 | Nestec S.A. | Pasta product and manufacture thereof |
US6723053B2 (en) * | 2001-03-14 | 2004-04-20 | Coopersurgical, Inc. | Esophageal balloon catheter device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5372138A (en) * | 1988-03-21 | 1994-12-13 | Boston Scientific Corporation | Acousting imaging catheters and the like |
US5263485A (en) | 1989-09-18 | 1993-11-23 | The Research Foundation Of State University Of New York | Combination esophageal catheter for the measurement of atrial pressure |
US5836892A (en) | 1995-10-30 | 1998-11-17 | Cordis Corporation | Guidewire with radiopaque markers |
US6322514B1 (en) * | 2000-03-13 | 2001-11-27 | Instrumentarium Corporation | Method for determining cardiac characteristics of subject |
-
2001
- 2001-03-14 US US09/808,080 patent/US6723053B2/en not_active Expired - Fee Related
-
2004
- 2004-03-04 US US10/793,299 patent/US20040171942A1/en not_active Abandoned
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US586892A (en) * | 1897-07-20 | Victor angerer | ||
US3480003A (en) * | 1967-02-03 | 1969-11-25 | Battelle Development Corp | Apparatus for measuring esophageal motility |
US3710781A (en) * | 1970-10-12 | 1973-01-16 | T Huthcins | Catheter tip pressure transducer |
US4214593A (en) * | 1978-09-18 | 1980-07-29 | Mallinckrodt, Inc. | Esophageal pressure monitoring device |
US5836951A (en) * | 1986-12-09 | 1998-11-17 | Boston Scientific Corporation | Balloon dilation catheter |
US4981470A (en) * | 1989-06-21 | 1991-01-01 | Synectics Medical, Inc. | Intraesophageal catheter with pH sensor |
US5921935A (en) * | 1989-09-18 | 1999-07-13 | The Research Foundation Of State University Of New York | Method and apparatus utilizing heart sounds for determining pressures associated with the left atrium |
US5117828A (en) * | 1989-09-25 | 1992-06-02 | Arzco Medical Electronics, Inc. | Expandable esophageal catheter |
US5117839A (en) * | 1990-09-18 | 1992-06-02 | Lake Region Manufacturing Co., Inc. | Exchangeable fixed wire catheter |
US5295968A (en) * | 1992-08-19 | 1994-03-22 | Wilson-Cook Medical Inc. | Stylet wire assembly |
US5419340A (en) * | 1993-10-27 | 1995-05-30 | Stevens; Robert C. | Guidable catheter assembly using coated deflector wire and method of using same |
US5836895A (en) * | 1995-01-09 | 1998-11-17 | Arzco Medical Systems, Inc. | Esophageal catheter with gauge |
US5716318A (en) * | 1995-04-14 | 1998-02-10 | The University Of North Carolina At Chapel Hill | Method of treating cardiac arrest and apparatus for same |
US6259938B1 (en) * | 1998-05-15 | 2001-07-10 | Respironics, Inc. | Monitoring catheter and method of using same |
US6322840B2 (en) * | 1999-03-16 | 2001-11-27 | Nestec S.A. | Pasta product and manufacture thereof |
US6723053B2 (en) * | 2001-03-14 | 2004-04-20 | Coopersurgical, Inc. | Esophageal balloon catheter device |
Cited By (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100367909C (en) * | 2004-12-25 | 2008-02-13 | 安徽医科大学第一附属医院 | Testing meter of venous pressure for varicose esophagus in computer vision, and testing process |
US8147431B2 (en) * | 2005-02-17 | 2012-04-03 | Q-Pidt Bv | Measuring member and device for determining the blood flow of the gastrointestinal tract, as well as for registrating the intestinal peristalsis |
US20080319339A1 (en) * | 2005-02-17 | 2008-12-25 | Jan Beute | Measuring Member And Device For Determining The Blood Flow Of The Gastrointestinal Tract, As Well As For Registrating The Intestinal Peristalsis |
US8323180B2 (en) | 2006-01-04 | 2012-12-04 | Allergan, Inc. | Hydraulic gastric band with collapsible reservoir |
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US8840541B2 (en) | 2010-02-25 | 2014-09-23 | Apollo Endosurgery, Inc. | Pressure sensing gastric banding system |
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US10321867B2 (en) * | 2010-07-13 | 2019-06-18 | Diversatek Healthcare, Inc. | Method of detecting and measuring the condition of intraluminal esophageal mucosa |
US20170143248A1 (en) * | 2010-07-13 | 2017-05-25 | Sandhill Scientific, Inc. | Method of Detecting and Measuring the Condition of Intraluminal Esophageal Mucosa |
US8725435B2 (en) | 2011-04-13 | 2014-05-13 | Apollo Endosurgery, Inc. | Syringe-based leak detection system |
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