WO2009052838A1 - Perfusion balloon catheter - Google Patents

Perfusion balloon catheter Download PDF

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Publication number
WO2009052838A1
WO2009052838A1 PCT/EG2008/000040 EG2008000040W WO2009052838A1 WO 2009052838 A1 WO2009052838 A1 WO 2009052838A1 EG 2008000040 W EG2008000040 W EG 2008000040W WO 2009052838 A1 WO2009052838 A1 WO 2009052838A1
Authority
WO
WIPO (PCT)
Prior art keywords
balloon
balloons
balloon catheter
passage
catheter
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.)
Ceased
Application number
PCT/EG2008/000040
Other languages
French (fr)
Inventor
Wael Mohamed Nabil Lotfy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2009052838A1 publication Critical patent/WO2009052838A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • A61M25/1002—Balloon catheters characterised by balloon shape
    • 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
    • A61M25/1011—Multiple 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
    • A61M29/02—Dilators made of swellable material
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1095—Balloon catheters with special features or adapted for special applications with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1097—Balloon catheters with special features or adapted for special applications with perfusion means for enabling blood circulation only while the balloon is in an inflated state, e.g. temporary by-pass within balloon

Definitions

  • Balloon catheters known from the clinical practice are usually cylindrical in shape, they are mostly circular in cross section. They are used to dilate any narrowed passage, e.g. a blood vessel or any other part of a body. Because they are circular, the wall stress is evenly distributed around the circumference. Thus, the valve or vessel will tear at its weakest point. Using two or three separate balloons has been effective though required multiple sites of vascular entry.
  • a problem that may occur while using known balloon catheters is that upon inflation of the balloon catheter the flow of the blood, other fluid or gas is interrupted completely or almost completely during the dilation process. When afterwards the balloon is deflated, this may lead - e.g. in case of dilation of a blood vessel - to a marked decrease of blood pressure, oxygen saturation or even cardiac arrest.
  • Another problem deriving from the use of known balloon catheters is that the balloon catheter sometimes is dislodged from its place during the dilation procedure.
  • the invention relates to balloon catheters.
  • Balloon catheters are used to dilate narrowings whether congenial or acquired present in the lumen of a passage.
  • a passage might be a respiratory, airway, vascular, urinary or gastrointestinal passage.
  • Balloon catheters known from the clinical practice are usually cylindrical in shape, they are mostly circular in cross section. They are used to dilate any narrowed passage, e.g. a blood vessel or any other part of a body. Because they are circular, the wall stress is evenly distributed around the circumference. Thus, the valve or vessel will tear at its weakest point. Using two or three separate balloons has been effective though required multiple sites of vascular entry.
  • a problem that may occur while using known balloon catheters is that upon inflation of the balloon catheter the flow of the blood, other fluid or gas is interrupted completely or almost completely during the dilation process. When afterwards the balloon is deflated, this may lead - e.g. in case of dilation of a blood vessel - to a marked decrease of blood pressure, oxygen saturation or even cardiac arrest.
  • Another problem deriving from the use of known balloon catheters is that the balloon catheter sometimes is dislodged from its place during the dilation procedure.
  • An inventive balloon catheter comprises at least one inflatable balloon and further comprises, at least when being inflated inside a tubular or hollow body, one passage that allows fluid to pass the balloon.
  • the passage may be beneath or inside the balloon.
  • This design of the inventive balloon catheter allows the passage of fluids and gases through it and/or around it during the dilatation procedure. Thereby it reduces the risk of a sudden decrease of blood pressure, oxygen saturation or cardiac arrest, because it allows fluids to pass the balloon(s) even during the dilation progress. Furthermore the risk of dislocation is reduced, as the passage(s) of the inventive balloon catheter reduce the forces being applied on the balloon(s) during the dilation procedure.
  • the invention comprises all forms of catheters with their different sizes, lengths including but not limited to those for the vascular system, the urinary system, the central nervous system, the gastrointestinal or respiratory system.
  • the inventive balloon catheter allows the catheter(s) to be in the centre of the inflated balloon(s), on the side or even inside them.
  • the size of the balloon(s) may be equal or different.
  • the balloon catheter comprises one balloon, it is advantageous to design the balloon as a hollow wheel balloon with a central supporting structure.
  • the structure may comprise one or several supporting arms that make sure that the passage will is maintained when the balloon is inflated.
  • the inventive balloon catheter may also consist of two balloons being designed to provide two passages when being inflated inside a blood vessel or any other tubular or hollow structure.
  • the balloon catheter may be connected or separate balloons.
  • the balloon catheter may consist of three or more balloons being designed to provide three or more passages when being inflated.
  • a balloon catheter may consist of two balloons each being shaped as torus.
  • inventive balloon catheters may be combined with stents. Stents may be imposed on the balloon(s) without significantly influencing the function of the inventive balloon catheter.
  • the invented balloon could be made from, but not limited to plastic polymers: polyvinyl chloride, polyethylene, polyethylene teraphthalate, nylon or reinforced polyurethane.
  • the optimal balloon would be scratch resistant, non compliant with a high yield strength equal to ultimate tensile strength.
  • the balloon is attached to the catheter shaft by thermal or adhesive bonding.
  • the catheter should contain at least one guide wire lumen to deliver the balloon to the stenosis.
  • a true double lumen or more design like most of the available balloons is advantageous. Further embodiments of the invention are described in the following in conjunction with the drawings and the detailed description.
  • Fig. 1 shows a longitudinal section of a vessel with the inventive balloon catheter comprising two balloons and two passages.
  • Fig. 2:- shows a cross-sectional view of the balloon catheter in fig. 1.
  • Fig. Si- shows a longitudinal section of a vessel with an inventive balloon catheter comprising three balloons and three passages.
  • Fig. 4:- shows a cross-sectional view of the balloon catheter in fig. 3.
  • Fig. 5 shows a longitudinal section of a vessel with an inventive balloon catheter comprising four balloons and four passages; the catheter shown here is connected to two balloons which are in turn connected to the other two balloons but the catheter could easily be as well the centre of the four or more balloons.
  • Fig. 6 shows a cross-sectional view of the balloon catheter in fig. 5.
  • Fig. 7 shows a longitudinal section of a vessel with an inventive balloon catheter comprising two balloons with two passages and double catheter lumens.
  • Fig. 8:- shows a cross-sectional view of the balloon catheter in fig. 7.
  • Fig. 9:- shows a longitudinal section of a vessel with an inventive balloon catheter comprising two balloons with two passages.
  • Fig. 10 shows a cross-sectional view of the balloon catheter in fig. 9.
  • Fig. 11 shows a longitudinal section of a vessel with an inventive balloon catheter comprising a wheel tire shaped balloon with four supporting arms and one central passage.
  • Fig. 12:- shows a cross sectional view of the inventive balloon catheter in fig. 1 1.
  • A Catheter supporting the balloon(s).

Landscapes

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

Abstract

This invention is a new design of a balloon catheter that allows the passage of fluids or gases through or around it during the dilatation procedure in a reasonable manner to allow more stability to the catheter itself and less risks and complications during the procedure itself. This includes all balloon catheters whether for cardiovascular, urinary, gastrointestinal, or respiratory system use.

Description

Smart Balloon
Technical field:
Medicine, interventional procedures e.g. cardiac catheterization, bronchoscopic, urinary, gastrointestinal ..etc.
Background Art:
Balloon catheters known from the clinical practice are usually cylindrical in shape, they are mostly circular in cross section. They are used to dilate any narrowed passage, e.g. a blood vessel or any other part of a body. Because they are circular, the wall stress is evenly distributed around the circumference. Thus, the valve or vessel will tear at its weakest point. Using two or three separate balloons has been effective though required multiple sites of vascular entry. A problem that may occur while using known balloon catheters is that upon inflation of the balloon catheter the flow of the blood, other fluid or gas is interrupted completely or almost completely during the dilation process. When afterwards the balloon is deflated, this may lead - e.g. in case of dilation of a blood vessel - to a marked decrease of blood pressure, oxygen saturation or even cardiac arrest. Another problem deriving from the use of known balloon catheters is that the balloon catheter sometimes is dislodged from its place during the dilation procedure.
The other alternative was surgery with its inherent risks, sequale and complications e.g. in the case of open heart surgery. Disclosure of Invention:-
The invention relates to balloon catheters. Balloon catheters are used to dilate narrowings whether congenial or acquired present in the lumen of a passage. Such a passage might be a respiratory, airway, vascular, urinary or gastrointestinal passage. Balloon catheters known from the clinical practice are usually cylindrical in shape, they are mostly circular in cross section. They are used to dilate any narrowed passage, e.g. a blood vessel or any other part of a body. Because they are circular, the wall stress is evenly distributed around the circumference. Thus, the valve or vessel will tear at its weakest point. Using two or three separate balloons has been effective though required multiple sites of vascular entry. A problem that may occur while using known balloon catheters is that upon inflation of the balloon catheter the flow of the blood, other fluid or gas is interrupted completely or almost completely during the dilation process. When afterwards the balloon is deflated, this may lead - e.g. in case of dilation of a blood vessel - to a marked decrease of blood pressure, oxygen saturation or even cardiac arrest. Another problem deriving from the use of known balloon catheters is that the balloon catheter sometimes is dislodged from its place during the dilation procedure.
The problem to be solved is to overcome the aforementioned disadvantages of known balloon catheters. The problem is solved by a balloon catheter according to claim 1. An inventive balloon catheter comprises at least one inflatable balloon and further comprises, at least when being inflated inside a tubular or hollow body, one passage that allows fluid to pass the balloon. The passage may be beneath or inside the balloon. This design of the inventive balloon catheter allows the passage of fluids and gases through it and/or around it during the dilatation procedure. Thereby it reduces the risk of a sudden decrease of blood pressure, oxygen saturation or cardiac arrest, because it allows fluids to pass the balloon(s) even during the dilation progress. Furthermore the risk of dislocation is reduced, as the passage(s) of the inventive balloon catheter reduce the forces being applied on the balloon(s) during the dilation procedure.
The invention comprises all forms of catheters with their different sizes, lengths including but not limited to those for the vascular system, the urinary system, the central nervous system, the gastrointestinal or respiratory system.
The inventive balloon catheter allows the catheter(s) to be in the centre of the inflated balloon(s), on the side or even inside them. The size of the balloon(s) may be equal or different. If the balloon catheter comprises one balloon, it is advantageous to design the balloon as a hollow wheel balloon with a central supporting structure. The structure may comprise one or several supporting arms that make sure that the passage will is maintained when the balloon is inflated. The inventive balloon catheter may also consist of two balloons being designed to provide two passages when being inflated inside a blood vessel or any other tubular or hollow structure.
If the balloon catheter consists of several balloons, the balloons may be connected or separate balloons.
In an analogous manner the balloon catheter may consist of three or more balloons being designed to provide three or more passages when being inflated.
It is also possible to achieve a passage through a balloon by designing the balloons respectively. For example, a balloon catheter may consist of two balloons each being shaped as torus.
The inventive balloon catheters may be combined with stents. Stents may be imposed on the balloon(s) without significantly influencing the function of the inventive balloon catheter.
The invented balloon could be made from, but not limited to plastic polymers: polyvinyl chloride, polyethylene, polyethylene teraphthalate, nylon or reinforced polyurethane. The optimal balloon would be scratch resistant, non compliant with a high yield strength equal to ultimate tensile strength.
The balloon is attached to the catheter shaft by thermal or adhesive bonding.
The catheter should contain at least one guide wire lumen to deliver the balloon to the stenosis. A true double lumen or more design like most of the available balloons is advantageous. Further embodiments of the invention are described in the following in conjunction with the drawings and the detailed description.
Brief Descreabtion of Drawing: Fig. 1 :- shows a longitudinal section of a vessel with the inventive balloon catheter comprising two balloons and two passages.
Fig. 2:- shows a cross-sectional view of the balloon catheter in fig. 1.
Fig. Si- shows a longitudinal section of a vessel with an inventive balloon catheter comprising three balloons and three passages.
Fig. 4:- shows a cross-sectional view of the balloon catheter in fig. 3.
Fig. 5 : shows a longitudinal section of a vessel with an inventive balloon catheter comprising four balloons and four passages; the catheter shown here is connected to two balloons which are in turn connected to the other two balloons but the catheter could easily be as well the centre of the four or more balloons.
Fig. 6: shows a cross-sectional view of the balloon catheter in fig. 5.
Fig. 7: shows a longitudinal section of a vessel with an inventive balloon catheter comprising two balloons with two passages and double catheter lumens. Fig. 8:- shows a cross-sectional view of the balloon catheter in fig. 7.
Fig. 9:- shows a longitudinal section of a vessel with an inventive balloon catheter comprising two balloons with two passages. Fig. 10: shows a cross-sectional view of the balloon catheter in fig. 9. Fig. 11 : shows a longitudinal section of a vessel with an inventive balloon catheter comprising a wheel tire shaped balloon with four supporting arms and one central passage. Fig. 12:- shows a cross sectional view of the inventive balloon catheter in fig. 1 1.
* * * * * * *
A: Catheter supporting the balloon(s).
B: Balloon(s).
C: Vessel wall.
D: Passage around the balloon(s).
E: Extracatheter lumen whether directly related or spaced from the catheter supporting the balloon(s) A.

Claims

Claims
1- Balloon catheter comprising at least one inflatable balloon, characterized in that the balloon, being inflated inside a tubular or hollow body, further comprises at least one passage that allows fluid or gas to pass the balloon.
2- Balloon catheter according to claim 1 comprising one inflatable balloon, characterized in that the balloon is shaped as a hollow wheel balloon with a central supporting structure.
3-Balloon catheter according to claim 1 comprising two balloons, characterized by two passages that allow the passage of fluid around the balloons.
4-Balloon catheter according to claim 1 comprising three balloons, characterized by three passages allowing the passage of fluid around the balloons.
5-Balloon catheter according to claim 1 comprising four of more balloons, characterized by four or more passages allowing the passage of fluid around the balloons.
6-Balloon catheter according to one of the precedent claims, characterized by at least one passage through one ore more balloons. 7- Balloon catheter according to one of the precedent claims comprising at least two balloons, characterized in that the at least two balloons, being inflated are designed to allow fluid or gas to pass through the balloons.
8- Balloon catheter according to one of the preceding claims, characterized by at least one stent being imposed on the balloon(s).
PCT/EG2008/000040 2007-10-24 2008-10-20 Perfusion balloon catheter Ceased WO2009052838A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EG2007100550 2007-10-24
EG2007100550 2007-10-24

Publications (1)

Publication Number Publication Date
WO2009052838A1 true WO2009052838A1 (en) 2009-04-30

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ID=40579103

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EG2008/000040 Ceased WO2009052838A1 (en) 2007-10-24 2008-10-20 Perfusion balloon catheter

Country Status (1)

Country Link
WO (1) WO2009052838A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012045297A (en) * 2010-08-30 2012-03-08 Takehisa Nojima Dilation catheter
US8409171B2 (en) 2008-02-28 2013-04-02 Hollister Incorporated Fluid drainage catheter having an external flow path
GB2502956A (en) * 2012-06-06 2013-12-18 Creagh Medical Ltd A catheter having balloons located around the circumference of the catheter
US8663319B2 (en) 2007-07-23 2014-03-04 Hocor Cardiovascular Technologies Llc Methods and apparatus for percutaneous aortic valve replacement
US8663318B2 (en) 2007-07-23 2014-03-04 Hocor Cardiovascular Technologies Llc Method and apparatus for percutaneous aortic valve replacement
US8708955B2 (en) 2008-06-02 2014-04-29 Loma Vista Medical, Inc. Inflatable medical devices
WO2015100393A1 (en) 2013-12-27 2015-07-02 Renalpro Medical, Inc. Devices and methods for treating acute kidney injury
US9592119B2 (en) 2010-07-13 2017-03-14 C.R. Bard, Inc. Inflatable medical devices
CN108514679A (en) * 2018-04-25 2018-09-11 邱结华 A kind of foley's tube for maintaining blood flow unobstructed
JP2018175550A (en) * 2017-04-17 2018-11-15 テルモ株式会社 Balloon catheter
US10188436B2 (en) 2010-11-09 2019-01-29 Loma Vista Medical, Inc. Inflatable medical devices
US10188273B2 (en) 2007-01-30 2019-01-29 Loma Vista Medical, Inc. Biological navigation device
JP2021528165A (en) * 2018-06-21 2021-10-21 レナルプロ メディカル， インコーポレイテッド Multi-chamber balloon catheter devices and methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994019049A1 (en) * 1993-02-16 1994-09-01 Boston Scientific Corporation Inflatable perfusion catheter
US5505702A (en) * 1992-04-09 1996-04-09 Scimed Life Systems, Inc. Balloon catheter for dilatation and perfusion
DE20014621U1 (en) * 2000-08-24 2000-11-30 Hosny Abd El Rahman, Yasser, 45147 Essen Non-flow-limiting balloon for intravascular dilation or radiation
US6540734B1 (en) * 2000-02-16 2003-04-01 Advanced Cardiovascular Systems, Inc. Multi-lumen extrusion tubing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5505702A (en) * 1992-04-09 1996-04-09 Scimed Life Systems, Inc. Balloon catheter for dilatation and perfusion
WO1994019049A1 (en) * 1993-02-16 1994-09-01 Boston Scientific Corporation Inflatable perfusion catheter
US6540734B1 (en) * 2000-02-16 2003-04-01 Advanced Cardiovascular Systems, Inc. Multi-lumen extrusion tubing
DE20014621U1 (en) * 2000-08-24 2000-11-30 Hosny Abd El Rahman, Yasser, 45147 Essen Non-flow-limiting balloon for intravascular dilation or radiation

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10188273B2 (en) 2007-01-30 2019-01-29 Loma Vista Medical, Inc. Biological navigation device
US11253356B2 (en) 2007-07-23 2022-02-22 Hocor Cardiovascular Technologies, Llc Methods and apparatus for percutaneous aortic valve replacement
US9700410B2 (en) 2007-07-23 2017-07-11 Hocor Cardiovascular Technologies Llc Method and apparatus for percutaneous aortic valve replacement
US8663319B2 (en) 2007-07-23 2014-03-04 Hocor Cardiovascular Technologies Llc Methods and apparatus for percutaneous aortic valve replacement
US8663318B2 (en) 2007-07-23 2014-03-04 Hocor Cardiovascular Technologies Llc Method and apparatus for percutaneous aortic valve replacement
US10080654B2 (en) 2007-07-23 2018-09-25 Hocor Cardiovascular Technologies, Llc Methods and apparatus for percutaneous aortic valve replacement
US9480564B2 (en) 2007-07-23 2016-11-01 Hocor Cardiovascular Technologies, Llc Methods and apparatus for percutaneous aortic valve replacement
US8409171B2 (en) 2008-02-28 2013-04-02 Hollister Incorporated Fluid drainage catheter having an external flow path
US9186488B2 (en) 2008-06-02 2015-11-17 Loma Vista Medical, Inc. Method of making inflatable medical devices
US9504811B2 (en) 2008-06-02 2016-11-29 Loma Vista Medical, Inc. Inflatable medical devices
US8708955B2 (en) 2008-06-02 2014-04-29 Loma Vista Medical, Inc. Inflatable medical devices
US9592119B2 (en) 2010-07-13 2017-03-14 C.R. Bard, Inc. Inflatable medical devices
JP2012045297A (en) * 2010-08-30 2012-03-08 Takehisa Nojima Dilation catheter
US10188436B2 (en) 2010-11-09 2019-01-29 Loma Vista Medical, Inc. Inflatable medical devices
GB2502956A (en) * 2012-06-06 2013-12-18 Creagh Medical Ltd A catheter having balloons located around the circumference of the catheter
EP3086834A4 (en) * 2013-12-27 2018-01-03 Renalpro Medical, Inc. Devices and methods for treating acute kidney injury
US10300252B2 (en) 2013-12-27 2019-05-28 Renalpro Medical, Inc. Devices and methods for treating acute kidney injury
CN110013597A (en) * 2013-12-27 2019-07-16 睿诺帛医学科技股份有限公司 Devices and methods for treating acute kidney injury
WO2015100393A1 (en) 2013-12-27 2015-07-02 Renalpro Medical, Inc. Devices and methods for treating acute kidney injury
US11298512B2 (en) 2013-12-27 2022-04-12 Renalpro Medical, Inc. Devices and methods for treating acute kidney injury
CN110013597B (en) * 2013-12-27 2023-02-21 睿诺帛医学科技股份有限公司 Devices and methods for treating acute kidney injury
JP2018175550A (en) * 2017-04-17 2018-11-15 テルモ株式会社 Balloon catheter
CN108514679A (en) * 2018-04-25 2018-09-11 邱结华 A kind of foley's tube for maintaining blood flow unobstructed
JP2021528165A (en) * 2018-06-21 2021-10-21 レナルプロ メディカル， インコーポレイテッド Multi-chamber balloon catheter devices and methods
EP3810246A4 (en) * 2018-06-21 2022-04-20 Renalpro Medical, Inc. Multi-chambered balloon catheter devices and methods

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