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WO1995033510A1 - DISPOSITIF DE PROTECTION CONTRE LE SURGONFLAGE DE CATHETER à BALLONNET - Google Patents

DISPOSITIF DE PROTECTION CONTRE LE SURGONFLAGE DE CATHETER à BALLONNET Download PDF

Info

Publication number
WO1995033510A1
WO1995033510A1 PCT/US1995/007920 US9507920W WO9533510A1 WO 1995033510 A1 WO1995033510 A1 WO 1995033510A1 US 9507920 W US9507920 W US 9507920W WO 9533510 A1 WO9533510 A1 WO 9533510A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
port
movable wall
housing
pressure release
Prior art date
Application number
PCT/US1995/007920
Other languages
English (en)
Inventor
Allan Willis
Original Assignee
Allan Willis
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Allan Willis filed Critical Allan Willis
Priority to AU29073/95A priority Critical patent/AU2907395A/en
Publication of WO1995033510A1 publication Critical patent/WO1995033510A1/fr

Links

Classifications

    • 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
    • A61M25/1018—Balloon inflating or inflation-control devices
    • A61M25/10184—Means for controlling or monitoring inflation or deflation
    • A61M25/10185—Valves
    • A61M25/10186—One-way valves
    • 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
    • A61M25/1018—Balloon inflating or inflation-control devices
    • A61M25/10181—Means for forcing inflation fluid into the balloon
    • A61M25/10182—Injector syringes

Definitions

  • the present invention relates to over-inflation protection devices and, more particularly, to balloon catheter over-inflation protection devices.
  • Percutaneous transluminal coronary angioplasty is a procedure for enlarging a narrowed coronary arterial lumen using a balloon catheter.
  • balloon catheters One concern regarding the use of balloon catheters is the possibility of the inflatable dilatation balloon bursting while inside the patient.
  • the purpose of over-inflation protection devices is to ensure that the balloon catheter is not exposed to more than a specific predetermined maximum pressure, which is less than the failure pressure of the balloon.
  • One of the known over-inflation protection devices involves the use of an externally placed latex balloon.
  • the externally placed latex balloon however, has inherent burst risk problems similar to those of the dilatation balloon mounted on the catheter tip.
  • the over-inflation protection device comprises a housing, having an effluent port for communication with a pressure source.
  • the housing is further provided with an effluent port for communication with a balloon catheter.
  • the effluent port and influent port are in communication with each other, and with a pressure release port on the housing.
  • a vent is provided in the housing for releasing inflation media to maintain a predetermined maximum pressure.
  • a movable wall is positioned within the housing for defining a variable volume pressure release chamber between the movable wall and the pressure release port .
  • the movable wall is biased in the direction of the pressure source, so that an increase in pressure above a threshold pressure over comes the biasing force and moves the movable wall from a first position disposed towards the pressure, through a second position between the first position and a third position, to the third position in which the vent is placed in communication with the pressure source. In this manner, access inflation media is released through the vent when the movable wall is in the third position, thereby minimizing the likelihood of balloon failure.
  • a method of minimizing balloon catheter over-inflation In accordance with a further aspect of the present invention, there is provided a method of minimizing balloon catheter over-inflation.
  • a balloon catheter over-inflation device as described above is selected, said device having a maximum or vent pressure which is below the failure pressure of the balloon catheter.
  • the balloon catheter is connected to effluent port of the housing, and a pressure source is connected to the influent port of the housing.
  • the balloon catheter is thereafter percutaneously inserted and transluminally advanced to the desired treatment site in accordance with conventional techniques.
  • the pressure source is activated to inflate the balloon, and access inflation media beyond that required to inflate the balloon to the predetermined maximum pressure is vented through the vent, to minimize the risk of balloon failure.
  • the inflation balloon is thereafter deflated, and the catheter is withdrawn from the treatment site in accordance with conventional techniques .
  • Figure 1 is a partially exploded side elevational representation of a balloon catheter system incorporating the over-inflation protection device according to the present invention.
  • Figure 2 is a front elevational view of a first embodiment of an over-inflation protection device according to the present invention.
  • Figures 3A, 3B, and 3C are elevational cross-sectional views taken along lines 3-3 of Figure 2.
  • Figure 4 is an enlarged view of the vent depicted in Figure 3C.
  • Figure 5 is an exploded side elevational view of a second embodiment of an over-inflation protection device according to the present invention.
  • Figure 6 is a front elevational view of the second embodiment of the over-inflation protection device.
  • Figure 7 is an elevational cross-sectional view taken along line 7-7 of Figure 6.
  • Figure 8 is an exploded side elevational view of a third embodiment of an over-inflation protection device according to the present invention.
  • Figure 9 is a front elevational view of the third embodiment of the over-inflation protection device.
  • Figure 10 is an elevational cross-sectional view taken along line 10-10 of Figure 9.
  • the over- inflation protection device has an influent port 40, which can be connected to any of a variety of known pressure sources 22, such as a source of pressurized carbon dioxide gas, fluid or other media.
  • pressure sources 22 such as a source of pressurized carbon dioxide gas, fluid or other media.
  • Other conventional pressure sources such as an Indeflator or a syringe 24, can also be used.
  • a connector 25 is preferably provided on influent port 40 for releasably placing influent port 40 in communication with pressure source 22.
  • Connector 25 is preferably a standard luer connector, such as for connection to a corresponding luer
  • the over-inflation protection device 20 also has an effluent port 42, which can be connected to a catheter 30, such as a conventional balloon catheter with an inflatable balloon 32 near the distal tip.
  • the balloon 32 can be made from any of a number of materials, such as latex or polyethylene, depending on the type of procedure being performed.
  • Compressed gas such as pressurized carbon dioxide is preferably used to inflate a latex balloon as may be used in right heart/pulmonary artery catheterization, while a fluid pressure source is preferably used to inflate a polyethylene balloon in other percutaneous transluminal coronary angioplasty procedures.
  • the catheter 30 is connected to the over-inflation protection device 20 with a connector 33.
  • the catheter connection is preferably a standard luer connection, such as that obtained using a male luer lock 34.
  • FIGS 3A-3C illustrate side elevational cross-sectional views of a first embodiment of the over-inflation protection device 20 in sequential stages of operation.
  • a housing 38 is provided with influent port 40 for communication with a pressure source.
  • An effluent port 42 is provided for connection to a balloon catheter and placing the balloon catheter in communication with influent port 40 through the housing 38 as has been discussed.
  • the housing is also provided with a pressure release port 44.
  • the influent port 40, effluent port 42, and pressure release port 44 are in communication with each other.
  • a vent 52 is provided in the housing 38 downstream from the release port 44 for releasing inflation media, if necessary, to maintain a precalibrated maximum pressure.
  • the maximum pressure is preferably calibrated during the manufacturing stage of the device using conventional means as will be apparent to one of skill in the art in view of the disclosure herein.
  • a movable wall 48 is disposed within the housing 38 for defining a variable volume pressure release chamber 46 between the movable wall and the pressure release port 44.
  • the movable wall 48 comprises an elastomeric plug such as the plunger in a conventional syringe, for providing slidable sealing engagement within a tubular wall.
  • the pressure release chamber 46 is in communication with the pressure release port 44, and normally positioned in between the port 44 and the vent 52.
  • the movable wall 48 is biased in the direction of the pressure source 22 by a spring 50 in the housing 38. Any of a number of other conventional sources for providing a biasing force can also be used, such as compressible foams, resilient materials and the like.
  • the movable wall can be biased by a pull spring in the housing positioned on the pressure release port 44 side of the movable wall 48.
  • the coil 50 is disposed on the downstream side of movable wall 48 as illustrated.
  • the dimensions and configuration of the over-inflation protection device 20 can be varied considerably to suit the particular design criteria desired for a particular application and still embody the present invention.
  • the device in a typical percutaneous transluminal coronary angioplasty procedure, is adapted for use with a conventional dilatation balloon having a working pressure within the range of from about 120 p.s.i. to about 160 p.s.i and a failure pressure of greater than 180 p.s.i.
  • the movable wall 48 is axially movably positioned within a generally cylindrical portion of the housing 38 as illustrated to provide the variable volume chamber 46.
  • the housing can be made using any of a number of techniques known in the art. For instance, the housing can be cast from stainless steel, such as in a sterilizable, reusable model. The housing can also be injection molded from polyethylene, polycarbonate, or other medical grade polymer such as in a disposable model. Use of a clear polymer permits visualization of the position of the movable wall 48 within the chamber. Indicia of pressure can also be provided on the generally cylindrical portion of the housing containing the movable wall.
  • the main manifold portion of the housing 38 is integrally molded with the portion of the housing which contains the movable wall 48 and chamber 46.
  • the distal end 49 of the housing 38 is provided with an open end, for insertion of the movable wall 48 and spring 50.
  • a separate cap 51 is secured into place such as through the use of conventional adhesives, thermal bonding, solvent bonding or mechanical interfit techniques.
  • the chamber size and spring constant will be adapted to cooperate with the coefficient of sliding friction of movable wall 48 within the chamber to achieve venting at the appropriate maximum pressure.
  • the movable wall 48 is a generally cylindrical elastomeric plug having a diameter of about 0.250 inch to 0.400 inch and an axial length of about 0.250 inch.
  • the movable wall 48 is slidably disposed in a generally cylindrical chamber having an axial length of about 1.5 to 2.0 inches.
  • a coil spring having a coil diameter of about 0.350 inch, a wire diameter of about 0.025 inch, and a relaxed length of about 1.3 to 1.9 inches is used to bias the movable wall 48.
  • the spatial orientation of the movable wall within the chamber causes partial compression of the spring so that the spring length in the chamber is somewhat less than the relaxed length of the spring.
  • the stroke length of the spring is generally about 1.00 to 1.50 inches.
  • the chamber preferably has an inside diameter of 0.360 inch, with a pressure release chamber variable volume between 0.75 cc and 1.0 cc.
  • Calibration of the device can be readily accomplished by pressurizing the system to the desired maximum pressure, and observing and/or marking the location of the movable wall 48 within the chamber. Following release of pressure, the vent 52 can be conveniently drilled at the appropriate location. Alternatively, the vent 52 can be predrilled or molded if the various components of the device are available within acceptable manufacturing tolerances to produce a desired precision in the final product.
  • the movable wall has an axial travel of at least about 0.75 inch, and preferably at least about 1.0 inch between the onset of pressure and the release of inflation media through the vent 52.
  • the aforementioned axial travel of the movable wall creates a damper effect.
  • This damper effect is beneficial for a number of reasons. For example, axial travel of the movable wall ensures gradual inflation of the catheter balloon 32. In addition, the damper effect lowers the peak pressure received by the catheter balloon in response to a given pressure delivered from the pressure source 22. Further, visualization of the axial position of the movable wall enhances the user's ability to gauge the degree of inflation while the balloon is inside the patient.
  • the movable wall is in a first position.
  • the movable wall 48 will remain in the first position until being exposed to pressures above a threshold pressure necessary to overcome the initial biasing force and thereby move the wall.
  • the spring 50 is partially compressed (pretensioned) so that the movable wall will return to the first position when the pressure drops below the threshold pressure.
  • Figure 3B illustrates the movable wall 48 in a second, intermediate position.
  • the second position of the movable wall 48 can be anywhere between the first position and a third position as discussed below.
  • the vent 52 is not in communication with the pressure release chamber 46 when the movable wall 48 is in either the first or second position. Pressure increases above the threshold pressure, however, cause the variable volume of the pressure release chamber 46 to increase. The increased volume of the pressure release chamber 46 allows the over-inflation protection device to absorb excess pressure while the movable wall 48 is advancing through the second position, even though the vent 52 is not yet in communication with the pressure release chamber 46.
  • Figure 3C illustrates the movable wall in the third position.
  • the vent is placed in communication with the pressure release chamber so that inflation media is released through the vent 52, as indicated by the curved arrow in Figure 3C, thereby maintaining a stable maximum inflation pressure within the system.
  • FIG 4 is an enlarged view of a portion of Figure 3C, illustrating the release of pressure through the vent 52 when the movable wall 48 is in the third position.
  • fluid escaping through vent 52 can be collected by any of the variety of structures apparent to those skilled in the art.
  • a procedure for preventing balloon catheter over- inflation within an artery is generally accomplished as follows. The surgeon selects an over-inflation protection device of the present invention having a desired vent pressure. The vent pressure selected depends on the type of procedure being performed.
  • an over-inflation protection device 20 with a vent pressure of at least about 14 atmospheres or less may be used to dilate a highly calcified lesion, while an over-inflation protection device 20 having a vent pressure on the order of about 10 atmospheres may be used to dilate a soft thrombosis or less calcified lesion.
  • the influent port 40 of the housing 38 is connected to a conventional pressure source 22, such as a syringe 24.
  • a conventional balloon catheter is connected to the effluent port 42 of the housing 38.
  • a seven French Swan-Ganz catheter is preferably used for adults, while a five French Swan-Ganz catheter is preferably used for pediatric patients.
  • the surgeon positions the balloon catheter at a vascular treatment site using conventional techniques.
  • the surgeon then transmits pressure from the pressure source 22 to inflate the balloon 32 at the treatment site.
  • the seven French Swan-Ganz catheter balloon will normally inflate to its recommended size at a nominal 17 p.s.i., while the corresponding pressure for a five French Swan-Ganz pediatric catheter is approximately 21 p.s.i.
  • the over-inflation protection device 20 is calibrated so that the catheter balloon is not exposed to more than the preselected vent pressure, which is less than the failure pressure of the balloon 32, thereby preventing over-inflation.
  • the physician can determine whether the balloon 32 is inflated or deflated based on the position of the movable wall. This decreases the risk of the physician unknowingly withdrawing a catheter having a partially inflated balloon.
  • visualization of the movable wall enables the physician to assess catheter function. For instance, movement of the movable wall towards the pressure release port in response to a constant pressure from the pressure source 22, may be indicative of catheter malfunction, such as a leak in the catheter system.
  • Figures 5-7 illustrate a second embodiment of the present invention.
  • a subassembly 56 is releasably attached to pressure release port 44.
  • a standard luer connector 58 or other connector adapted for convenient attachment can be used to bring the subassembly 56 in communication with pressure release port 44.
  • the first and second embodiments are functionally identical.
  • FIG. 5-7 The procedure for using the second embodiment depicted by Figures 5-7 is the same as that of the first embodiment depicted by Figures 2-4 with the exception of the second embodiment requiring additional steps.
  • the additional steps required to use the embodiment of Figures 5-7 involve selecting a subassembly 56 having a desired vent pressure and attaching the subassembly 56 to the pressure-release port 44 before transmitting pressure from the pressure source 22.
  • This releasable attachment can be accomplished using a standard luer connector 58 or other connector adapted for convenient attachment. Alternatively, this step can be accomplished at the point of manufacture of the over-inflation protection device.
  • Figures 8-10 illustrate a third embodiment of the present invention.
  • the entire spring, movable wall and pressure release chamber are disposed within a integrally molded cap 60.
  • the cap 60 is press fit to the pressure release port 44 during the manufacturing stage of the device and secured using conventional techniques such as snap fit or net tolerance fit preferably together with any of a variety of ways to maintain a seal such as thermal bonding, solvent bonding or suitable adhesives known in the art.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Child & Adolescent Psychology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

L'invention concerne un dispositif (20) destiné à empêcher le surgonflage d'un cathéter à ballonnet (10). Selon un mode de réalisation de l'invention, une paroi mobile (48) est fixée à un ressort (50) afin de former une chambre de détente (46) entre la paroi mobile (48) et un orifice de détente (44) du dispositif. La paroi mobile (48) est sollicitée dans la direction d'une source de pression de sorte que les élévations de la pression déplacent la paroi mobile (48) à une distance variable de l'orifice de détente (44). Tout surgonflage du ballonnet (32) du cathéter est impossible car les pressions supérieures à un maximum voulu entraînent le déplacement de la paroi mobile (48) vers une position plaçant la chambre de détente (46) en communication avec un évent (52). L'invention concerne également un procédé destiné à empêcher le surgonflage d'un cathéter à ballonnet.
PCT/US1995/007920 1994-06-07 1995-06-07 DISPOSITIF DE PROTECTION CONTRE LE SURGONFLAGE DE CATHETER à BALLONNET WO1995033510A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU29073/95A AU2907395A (en) 1994-06-07 1995-06-07 Balloon catheter over-inflation protection device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25509794A 1994-06-07 1994-06-07
US08/255,097 1994-06-07

Publications (1)

Publication Number Publication Date
WO1995033510A1 true WO1995033510A1 (fr) 1995-12-14

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AU (1) AU2907395A (fr)
WO (1) WO1995033510A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0988870A3 (fr) * 1998-09-14 2000-07-12 Medtronic Ave, Inc. Dispositif de limitation de pression
WO2000078386A1 (fr) * 1999-06-23 2000-12-28 Medtronic Percusurge, Inc. Dispositif integre de gonflage/degonflage et procede associe
WO2006115904A3 (fr) * 2005-04-22 2007-03-15 Accessclosure Inc Appareil et méthodes permettant de fermer un point de ponction dans des tissus
US7331979B2 (en) 2003-06-04 2008-02-19 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
US8002742B2 (en) 2005-04-22 2011-08-23 Accessclosure, Inc. Apparatus and methods for sealing a puncture in tissue
EP2398549A4 (fr) * 2009-02-17 2012-08-08 Entellus Medical Inc Appareil et procédés de gonflement de cathéter à ballonnet
WO2013115993A1 (fr) * 2012-01-24 2013-08-08 St. Jude Medical Puerto Rico Llc Collecteur de dispositif de positionnement de ballonnet pour un dispositif de fermeture vasculaire
EP2862592A1 (fr) 2013-10-18 2015-04-22 University of Limerick Kit de cathéter transurétral et ensemble de seringue approprié à utiliser dans le gonflement correct d'un cathéter transurétral
JP2015104506A (ja) * 2013-11-29 2015-06-08 有限会社アルゴコーポレーション 流体吸排装置、及びカテーテルシステム
JP2015516196A (ja) * 2012-03-30 2015-06-11 アボット カーディオバスキュラー システムズ インコーポレイテッド 足場の配置中にけるバルーン膨張速度の制御
CN105025971A (zh) * 2013-01-31 2015-11-04 美敦力施美德公司 用于球囊窦扩张的充胀设备
US9289195B2 (en) 2003-06-04 2016-03-22 Access Closure, Inc. Auto-retraction apparatus and methods for sealing a vascular puncture
WO2016044020A1 (fr) * 2014-09-15 2016-03-24 Medtronic Xomed, Inc. Limiteur de pression pour dispositif de ballonnet de cathéter
JP2017521210A (ja) * 2014-06-27 2017-08-03 アクラレント インコーポレイテッドＡｃｃｌａｒｅｎｔ， 耳管拡開システム用ベントキャップ
WO2022217025A1 (fr) * 2021-04-09 2022-10-13 Edwards Lifesciences Corporation Systèmes de cathéter avec amortisseur de choc hydraulique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403988A (en) * 1980-08-21 1983-09-13 The Kendall Company Syringe assembly
US4801293A (en) * 1985-10-09 1989-01-31 Anthony Jackson Apparatus and method for detecting probe penetration of human epidural space and injecting a therapeutic substance thereinto

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403988A (en) * 1980-08-21 1983-09-13 The Kendall Company Syringe assembly
US4801293A (en) * 1985-10-09 1989-01-31 Anthony Jackson Apparatus and method for detecting probe penetration of human epidural space and injecting a therapeutic substance thereinto

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0988870A3 (fr) * 1998-09-14 2000-07-12 Medtronic Ave, Inc. Dispositif de limitation de pression
WO2000078386A1 (fr) * 1999-06-23 2000-12-28 Medtronic Percusurge, Inc. Dispositif integre de gonflage/degonflage et procede associe
US6234996B1 (en) 1999-06-23 2001-05-22 Percusurge, Inc. Integrated inflation/deflation device and method
US9289195B2 (en) 2003-06-04 2016-03-22 Access Closure, Inc. Auto-retraction apparatus and methods for sealing a vascular puncture
US7331979B2 (en) 2003-06-04 2008-02-19 Access Closure, Inc. Apparatus and methods for sealing a vascular puncture
US8002742B2 (en) 2005-04-22 2011-08-23 Accessclosure, Inc. Apparatus and methods for sealing a puncture in tissue
US9107645B2 (en) 2005-04-22 2015-08-18 Access Closure, Inc. Apparatus and methods for sealing a puncture in tissue
EP3199110A1 (fr) * 2005-04-22 2017-08-02 Access Closure, Inc. Appareil et procédé de fermeture étanche d'une perforation dans un tissu
JP2008538519A (ja) * 2005-04-22 2008-10-30 アクセスクロージャー，インク． 組織の穿刺を塞ぐ装置および方法
WO2006115904A3 (fr) * 2005-04-22 2007-03-15 Accessclosure Inc Appareil et méthodes permettant de fermer un point de ponction dans des tissus
EP2398549A4 (fr) * 2009-02-17 2012-08-08 Entellus Medical Inc Appareil et procédés de gonflement de cathéter à ballonnet
WO2013115993A1 (fr) * 2012-01-24 2013-08-08 St. Jude Medical Puerto Rico Llc Collecteur de dispositif de positionnement de ballonnet pour un dispositif de fermeture vasculaire
JP2015516196A (ja) * 2012-03-30 2015-06-11 アボット カーディオバスキュラー システムズ インコーポレイテッド 足場の配置中にけるバルーン膨張速度の制御
CN105025971A (zh) * 2013-01-31 2015-11-04 美敦力施美德公司 用于球囊窦扩张的充胀设备
US10105521B2 (en) 2013-01-31 2018-10-23 Medtronic Xomed, Inc. Inflation device for balloon sinus dilation
WO2015055815A1 (fr) 2013-10-18 2015-04-23 University Of Limerick Kit de cathéter transurétral, et ensemble seringue pouvant être utilisé pour gonfler correctement un cathéter transurétral
US9474877B2 (en) 2013-10-18 2016-10-25 University Of Limerick Transurethral catheter kit, and syringe assembly suitable for use in correctly inflating a transurethral catheter
EP2862592A1 (fr) 2013-10-18 2015-04-22 University of Limerick Kit de cathéter transurétral et ensemble de seringue approprié à utiliser dans le gonflement correct d'un cathéter transurétral
JP2015104506A (ja) * 2013-11-29 2015-06-08 有限会社アルゴコーポレーション 流体吸排装置、及びカテーテルシステム
JP2017521210A (ja) * 2014-06-27 2017-08-03 アクラレント インコーポレイテッドＡｃｃｌａｒｅｎｔ， 耳管拡開システム用ベントキャップ
US9770577B2 (en) 2014-09-15 2017-09-26 Medtronic Xomed, Inc. Pressure relief for a catheter balloon device
JP2017527385A (ja) * 2014-09-15 2017-09-21 メドトロニック・ゾーメド・インコーポレーテッド カテーテルバルーン装置のための圧力逃し
CN106714892A (zh) * 2014-09-15 2017-05-24 美敦力施美德公司 导管球囊装置的卸压
WO2016044020A1 (fr) * 2014-09-15 2016-03-24 Medtronic Xomed, Inc. Limiteur de pression pour dispositif de ballonnet de cathéter
AU2015318280B2 (en) * 2014-09-15 2020-02-20 Medtronic Xomed, Inc. Pressure relief for a catheter balloon device
JP2020114438A (ja) * 2014-09-15 2020-07-30 メドトロニック・ゾーメド・インコーポレーテッド 外科用器械のバルーンを選択的に膨らますための膨張装置
US10737077B2 (en) 2014-09-15 2020-08-11 Medtronix Xomed, Inc. Pressure relief for a catheter balloon device
EP3957351A1 (fr) 2014-09-15 2022-02-23 Medtronic Xomed, Inc. Décharge de pression pour un dispositif de cathéter à ballonnet
US11660433B2 (en) 2014-09-15 2023-05-30 Medtronic Xomed, Inc. Pressure relief for a catheter balloon device
WO2022217025A1 (fr) * 2021-04-09 2022-10-13 Edwards Lifesciences Corporation Systèmes de cathéter avec amortisseur de choc hydraulique

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Publication number Publication date
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