USRE39200E1 - Apparatus for treating a blood vessel - Google Patents

Apparatus for treating a blood vessel Download PDF

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Publication number
USRE39200E1
USRE39200E1 US08/785,445 US78544597A USRE39200E US RE39200 E1 USRE39200 E1 US RE39200E1 US 78544597 A US78544597 A US 78544597A US RE39200 E USRE39200 E US RE39200E
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United States
Prior art keywords
fluid
balloon
tube
electrode
wire
Prior art date
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Expired - Lifetime
Application number
US08/785,445
Inventor
Quinghua Qian
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Boston Scientific Scimed Inc
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Boston Scientific Scimed Inc
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Priority to US08/785,445 priority Critical patent/USRE39200E1/en
Assigned to BOSTON SCIENTIFIC SCIMED, INC. reassignment BOSTON SCIENTIFIC SCIMED, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: SCIMED LIFE SYSTEMS, INC.
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Publication of USRE39200E1 publication Critical patent/USRE39200E1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04—Tracheal tubes
    • A61M16/0475—Tracheal tubes having openings in the tube
    • A61M16/0477—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
    • A61M16/0481—Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids through the cuff wall
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00059—Material properties
    • A61B2018/00065—Material properties porous
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00184—Moving parts
    • A61B2018/00196—Moving parts reciprocating lengthwise
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053—Mechanical features of the instrument of device
    • A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
    • A61B2018/0022—Balloons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00482—Digestive system
    • A61B2018/00488—Esophagus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00482—Digestive system
    • A61B2018/00494—Stomach, intestines or bowel

Definitions

  • This invention relates to methods employing balloon tubes in medical practice. More particularly, the invention concerns a method of using a balloon tube for inducing thrombosis in blood vessels located directly under the surface of a cavity in the body which is difficult to reach.
  • Balloon tubes are known from T. V. Taylor and J. M. M. Neilson's article “Currents and Clots” —an approach to the problem of acute variceal bleeding”. Br. J. Surg. Vol. 68 (1981) 692-696. It is known how to stop bleeding of vessels located directly under the surface of a difficult to reach body cavity, through thrombosis by introducing a deflated balloon tube into the body cavity and then inflating it by applying a fluid at the correct position.
  • the balloon tube from the previous proposal is furnished with electrodes on its outer surface. These electrodes are supplied with a voltage across an electrically conductive wire. An electrode, possibly placed on the patient's back, can serve as an oppositely charged electrode. The electric current which arises through the application of voltage between the two electrodes induces thrombosis and therefore acts to stop the bleeding of the vessels.
  • Such thrombosis in bleeding vessels is indicated especially for oesophageal varices but could also be involved in bleeding in other body cavities.
  • the balloon tube which is known from the above-named article has not been able to assert itself in practice, since the resistance between the electrode and the surface of the body cavity is not defined.
  • the aim of the invention is to further develop the balloon tube as it is already known, so that it suffices for the demands of practical use.
  • the fluid which serves to inflate the balloon is capable of carrying in an electric current and the membrane wall of the balloon is semi-permeable for the fluid.
  • the wire which is to be led through the tube, should preferably be made of platinum.
  • Normal saline solution can be used as the fluid.
  • Other electrically conductive fluids, such as electrode gel, can be used.
  • the fluid can also serve as a conductor of medication.
  • FIG. 1 shows a cross-section through the balloon tube, whereby the upper part of the tube has been cut off and
  • FIG. 2 shows a cross-section along the line II—II from FIG. 1 .
  • the balloon tube which has been used corresponds in its appearance at first glance to a normal Sengstaken-Tube. It consists of a tube 10 and a balloon 12 located near the end of tube 10 . Tube 10 is furnished with openings 14 in the area in which the tube 10 is led through balloon 12 . A conductive wire 16 is led through tube 10 .
  • the conductive wire is made from platinum.
  • the balloon tube is introduced into the oesophagus, whereby balloon 12 is deflated.
  • a conductive fluid for example, normal saline solution, is introduced into the tube 10 .
  • the fluid enters balloon 12 through the openings 14 in tube 10 and fills it.
  • the balloon membrane walls 18 are of a semipermeable nature. Therefore, a small amount of the conducting fluid flows through the balloon walls 18 .
  • the balloon wall 18 offers no significant electrical resistance.
  • a counter electrode 20 with a large surface is applied to the chest area of the patient in the case of thrombosis of oesophageal varices.
  • the special wire 16 is not absolutely necessary, but rather the conductive fluid found in the tube also can be used as an electric conductor. Tube 10 is not semi-permeable and therefore offers considerable electric resistance.
  • a substance such as electrode gel for example, also can be used as a conducting fluid.
  • the balloon tube suggested here can further be used for example for the treatment of post-operative rebleedings after urethra operations or by lower intestinal bleedings or also by nasopharyngeal bleedings.
  • a further method is to add medications to the conducting fluid which induce blood-stanching over an iontophoretic tissue diffusion.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pulmonology (AREA)
  • Physics & Mathematics (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Emergency Medicine (AREA)
  • Otolaryngology (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Cardiology (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Child & Adolescent Psychology (AREA)
  • Biophysics (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Materials For Medical Uses (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Method of employing a balloon tube for creating a thrombosis of vessels located directly under the surface of a body cavity which is difficult to reach, through the initiation of an electric current between the balloon which is deflated as introduced into the body cavity and which is inflated by introducing a fluid on the spot and an outside electrode. The fluid which is used to inflate the balloon is electrically conductive and the balloon wall is semi-permeable for the fluid.

Description

RELATED APPLICATIONS
This is a Continuation Reissue Application of Ser. No. 08/120,212, filed Sep. 10, 1993, now Reissue No. 35,775, which is a Reissue of Application of Ser. No. 07/518,163, filed May 3, 1990, now U.S. Pat. No. 5,047,028.
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to methods employing balloon tubes in medical practice. More particularly, the invention concerns a method of using a balloon tube for inducing thrombosis in blood vessels located directly under the surface of a cavity in the body which is difficult to reach.
2. Description of the Prior Art
Balloon tubes are known from T. V. Taylor and J. M. M. Neilson's article “Currents and Clots” —an approach to the problem of acute variceal bleeding”. Br. J. Surg. Vol. 68 (1981) 692-696. It is known how to stop bleeding of vessels located directly under the surface of a difficult to reach body cavity, through thrombosis by introducing a deflated balloon tube into the body cavity and then inflating it by applying a fluid at the correct position. The balloon tube from the previous proposal is furnished with electrodes on its outer surface. These electrodes are supplied with a voltage across an electrically conductive wire. An electrode, possibly placed on the patient's back, can serve as an oppositely charged electrode. The electric current which arises through the application of voltage between the two electrodes induces thrombosis and therefore acts to stop the bleeding of the vessels.
Such thrombosis in bleeding vessels is indicated especially for oesophageal varices but could also be involved in bleeding in other body cavities.
The balloon tube which is known from the above-named article has not been able to assert itself in practice, since the resistance between the electrode and the surface of the body cavity is not defined.
SUMMARY OF THE INVENTION
The aim of the invention is to further develop the balloon tube as it is already known, so that it suffices for the demands of practical use.
Through this invention this problem can be solved by the fact that the fluid which serves to inflate the balloon is capable of carrying in an electric current and the membrane wall of the balloon is semi-permeable for the fluid.
The wire, which is to be led through the tube, should preferably be made of platinum.
Normal saline solution can be used as the fluid. Other electrically conductive fluids, such as electrode gel, can be used. The fluid can also serve as a conductor of medication.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is explained by the following description and drawings in which:
FIG. 1 shows a cross-section through the balloon tube, whereby the upper part of the tube has been cut off and
FIG. 2 shows a cross-section along the line II—II from FIG. 1.
 DETAILED DESCRIPTION OF THE INVENTION
Throughout the following detailed description, the same reference numerals refer to the same elements in all figures.
The balloon tube which has been used corresponds in its appearance at first glance to a normal Sengstaken-Tube. It consists of a tube 10 and a balloon 12 located near the end of tube 10. Tube 10 is furnished with openings 14 in the area in which the tube 10 is led through balloon 12. A conductive wire 16 is led through tube 10. Preferably, the conductive wire is made from platinum.
As an example, to stop bleedings of the oesophageal varices, the balloon tube is introduced into the oesophagus, whereby balloon 12 is deflated. When the desired place has been reached, a conductive fluid, for example, normal saline solution, is introduced into the tube 10. The fluid enters balloon 12 through the openings 14 in tube 10 and fills it. The balloon membrane walls 18 are of a semipermeable nature. Therefore, a small amount of the conducting fluid flows through the balloon walls 18. The balloon wall 18 offers no significant electrical resistance.
A counter electrode 20 with a large surface is applied to the chest area of the patient in the case of thrombosis of oesophageal varices.
By applying a source of voltage between the platinum wire 16 and the counter electrode 20 with opposite charge, a current arises between these two which induces the desired thrombosis through the choice of a suitable voltage difference between them.
The special wire 16 is not absolutely necessary, but rather the conductive fluid found in the tube also can be used as an electric conductor. Tube 10 is not semi-permeable and therefore offers considerable electric resistance.
Instead of a normal saline solution, a substance such as electrode gel, for example, also can be used as a conducting fluid.
The balloon tube suggested here can further be used for example for the treatment of post-operative rebleedings after urethra operations or by lower intestinal bleedings or also by nasopharyngeal bleedings.
A further method is to add medications to the conducting fluid which induce blood-stanching over an iontophoretic tissue diffusion.

Claims (20)

1. Method for creating a thrombosis in a blood vessel located directly under the surface of a body cavity which is difficult to reach comprising
inserting a deflated balloon containing a cylindrical tube into the body cavity, the tube having openings to the balloon,
inflating the balloon by introducing an electrically conductive fluid into the tube, the balloon having an exterior wall semi-permeable to the fluid, contacting a conductive wire to the conductive fluid to provide a connection to an electrode outside the body and initiating an electric current between the balloon and the electrode located outside the body cavity.
2. The method according to claim 1 wherein a wire is inserted through the cylindrical tube and is connected to the electrode located outside the body cavity.
3. The method according to claim 2 wherein the wire inserted is made of platinum.
4. The method according to claim 3 wherein the fluid introduced is normal saline solution.
5. The method according to claim 2 wherein the fluid introduced is normal saline solution.
6. The method according to claim 1 wherein the fluid introduced is normal saline solution.
7. The method according to claim 6, the method further comprising a step of adding a medicament to the fluid.
8. The method according to claim 1, the method further comprising a step of adding a medicament to the fluid.
9. An apparatus for inducing thrombosis in hard to reach blood vessels within a living body comprising
a cylindrical tube having multiple lateral passage-ways,
an electrically conductive fluid located within the tube,
a balloon having a membrane wall semipermeable to the fluid surrounding a portion of the cylindrical tube containing the passageways,
a counter electrode adapted to be located outside the body and
an electrically conductive wire electrically connecting the fluid and the electrode.
10. An apparatus according to claim 9 wherein the fluid is normal saline solution.
11. An apparatus according to claim 9 wherein the wire is made of platinum and the fluid is normal saline solution.
12. An apparatus according to claim 11 wherein a medicament is present in the fluid.
13. An apparatus according to claim 9 wherein a medicament is present in the fluid.
14. An apparatus for treating a blood vessel comprising:
a tube including an inlet and outlet, the tube adapted to receive a conductive fluid;
a balloon in communication with a portion of the tube, the balloon including a membrane adapted to allow the conductive fluid to pass through the membrane;
an electrode adapted to be located outside the blood vessel; and
an electronically conductive wire adapted to connect the electrode to the conductive fluid.
15. The apparatus of claim 14 wherein the electrode is adapted to be located outside the body.
16. The apparatus of claim 14 wherein the balloon is semi-permeable.
17. The apparatus of claim 14 wherein the conductive wire extends through the tube.
18. The apparatus of claim 14 wherein the wire is platinum.
19. The apparatus of claim 14 wherein the balloon is made of a material which offers no significant electrical resistance.
20. The apparatus of claim 14 wherein the tube is made of a material which offers significant electric resistance.
US08/785,445 1989-05-12 1997-01-17 Apparatus for treating a blood vessel Expired - Lifetime USRE39200E1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/785,445 USRE39200E1 (en) 1989-05-12 1997-01-17 Apparatus for treating a blood vessel

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3915636A DE3915636C1 (en) 1989-05-12 1989-05-12
US07/518,163 US5047028A (en) 1989-05-12 1990-05-03 Method for inducing thrombosis in blood vessels
US08/120,212 USRE35755E (en) 1989-05-12 1993-09-10 Method for inducing thrombosis in blood vessels
US08/785,445 USRE39200E1 (en) 1989-05-12 1997-01-17 Apparatus for treating a blood vessel

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US07/518,163 Reissue US5047028A (en) 1989-05-12 1990-05-03 Method for inducing thrombosis in blood vessels

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USRE39200E1 true USRE39200E1 (en) 2006-07-18

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Application Number Title Priority Date Filing Date
US07/518,163 Ceased US5047028A (en) 1989-05-12 1990-05-03 Method for inducing thrombosis in blood vessels
US08/120,212 Expired - Lifetime USRE35755E (en) 1989-05-12 1993-09-10 Method for inducing thrombosis in blood vessels
US08/785,445 Expired - Lifetime USRE39200E1 (en) 1989-05-12 1997-01-17 Apparatus for treating a blood vessel

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Application Number Title Priority Date Filing Date
US07/518,163 Ceased US5047028A (en) 1989-05-12 1990-05-03 Method for inducing thrombosis in blood vessels
US08/120,212 Expired - Lifetime USRE35755E (en) 1989-05-12 1993-09-10 Method for inducing thrombosis in blood vessels

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US (3) US5047028A (en)
EP (1) EP0396945B1 (en)
DE (2) DE3915636C1 (en)

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DE3915636C1 (en) 1990-04-26
US5047028A (en) 1991-09-10
USRE35755E (en) 1998-03-24
EP0396945B1 (en) 1996-03-06
EP0396945A2 (en) 1990-11-14
DE59010170D1 (en) 1996-04-11
EP0396945A3 (en) 1991-03-13

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