DE3915636C1 - - Google Patents

Info

Publication number
DE3915636C1
DE3915636C1 DE3915636A DE3915636A DE3915636C1 DE 3915636 C1 DE3915636 C1 DE 3915636C1 DE 3915636 A DE3915636 A DE 3915636A DE 3915636 A DE3915636 A DE 3915636A DE 3915636 C1 DE3915636 C1 DE 3915636C1
Authority
DE
Germany
Prior art keywords
balloon
fluid
wire
probe according
body cavity
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.)
Expired - Lifetime
Application number
DE3915636A
Other languages
English (en)
Inventor
Qinghua 2300 Kiel De Qian
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.)
SASS WOLFGANG DR
Original Assignee
SASS WOLFGANG DR
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 SASS WOLFGANG DR filed Critical SASS WOLFGANG DR
Priority to DE3915636A priority Critical patent/DE3915636C1/de
Priority to EP90107488A priority patent/EP0396945B1/de
Priority to DE59010170T priority patent/DE59010170D1/de
Application granted granted Critical
Publication of DE3915636C1 publication Critical patent/DE3915636C1/de
Priority to US07/518,163 priority patent/US5047028A/en
Priority to US08/120,212 priority patent/USRE35755E/en
Priority to US08/785,445 priority patent/USRE39200E1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/10Balloon catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12Surgical 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
    • A61B18/14Probes or electrodes therefor
    • A61B18/1492Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/04Tracheal tubes
    • A61M16/0475Tracheal tubes having openings in the tube
    • A61M16/0477Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids
    • A61M16/0481Tracheal tubes having openings in the tube with incorporated means for delivering or removing fluids through the cuff wall
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/12Reflex reflectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00292Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053Mechanical features of the instrument of device
    • A61B2018/00059Material properties
    • A61B2018/00065Material properties porous
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053Mechanical features of the instrument of device
    • A61B2018/00184Moving parts
    • A61B2018/00196Moving parts reciprocating lengthwise
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053Mechanical features of the instrument of device
    • A61B2018/00214Expandable means emitting energy, e.g. by elements carried thereon
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00053Mechanical features of the instrument of device
    • A61B2018/00214Expandable means emitting energy, e.g. by elements carried thereon
    • A61B2018/0022Balloons
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00482Digestive system
    • A61B2018/00488Esophagus
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00315Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
    • A61B2018/00482Digestive system
    • A61B2018/00494Stomach, intestines or bowel

Description

Die Erfindung betrifft eine Ballonsonde zur Thrombosie­ rung von dicht unterhalb der Fläche einer schwer zugäng­ lichen Körperhöhlung angeordneten Gefäßen nach dem Ober­ begriff des Anspruchs 1, wie sie aus der Literaturstelle T.V. Taylor und J.M.M. Neilson, "Currents and clots" - an approach to the problem of acute variceal bleeding", Br. J. Surg. Vol. 68 (1981) 692-696 bekannt ist.
Es ist bekannt, Blutungen von dicht unterhalb der Fläche einer schwer zugänglichen Körperhöhlung angeordneten Ge­ fäßen durch Thrombosierung zu stillen, indem eine Bal­ lonsonde ("Sengstaken-Sonde") entblockiert in die Kör­ perhöhlung eingebracht und sodann durch Einbringen eines Fluids an Ort und Stelle geblockt wird. Die Ballonsonde ist bei dem vorbekannten Vorschlag an ihrer Außenfläche mit Elektroden versehen, die über einen elektrisch lei­ tenden Draht mit einer Spannung versorgt werden. Als Ge­ genpol dient eine großflächige, beispielsweise auf dem Rücken des Patienten aufgelegte Elektrode. Der bei Anle­ gung der Spannung entstehende Stromfluß zwischen den beiden Elektroden bewirkt eine Thrombosierung und damit eine Stillung der Blutung der Gefäße.
Eine derartige Thrombosierung von blutenden Gefäßen ist insbesondere bei Ösophagusvarizen indiziert, kommt aber auch bei anderen Körperhöhlungen in Betracht.
Die aus der genannten Literaturstelle bekannte Ballon­ sonde hat sich in der Praxis nicht durchsetzen können, da der zwischen der Elektrode und der Fläche der Körper­ höhlung gebildete Widerstand nicht definiert ist.
Der Erfindung liegt damit die Aufgabe zugrunde, die vor­ bekannte Ballonsonde derart weiterzubilden, daß sie den Anforderungen der Praxis genügt, d. h. daß der zwischen der Elektrode und der Fläche der Körperhöhlung gebildete Wider­ stand einen definierten Wert aufweist.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß das den Ballon blockierende Fluid elektrisch leitend ist und die Ballonwandung für das Fluid teilpermeabel ist.
Vorzugsweise ist zur Stromzuführung ein durch den Schlauch geführter Draht vorgesehen, wobei der Draht vorzugsweise als Platindraht ausgebildet ist.
Als Fluid kommt insbesondere physiologische Kochsalzlö­ sung in Betracht, auch andere elektrisch leitende Flui­ de, beispielsweise ein Elektrodengel, können verwendet werden.
Das Fluid kann dabei weiter als Medikationsträger die­ nen.
Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt:
Fig. 1 eine Schnittdarstellung durch die Ballonsonde, wobei der obere Teil des Schlau­ ches abgeschnitten ist, und
Fig. 2 eine Schnittdarstellung ent­ lang der Linie II-II von Fig. 1.
Die verwendete Ballonsonde entspricht in ihrem Erschei­ nungsbild zunächst einer üblichen Sengstaken-Sonde: Sie besteht aus einem Schlauch 10 und einem nahe dem einen Ende des Schlauches 10 angeordneten Ballon 12, wobei der Schlauch 10 in dem Bereich, in dem er durch den Ballon 12 geführt ist, mit Öffnungen 14 versehen ist. Durch den Schlauch 10 ist ein Platindraht 16 geführt.
Um beispielsweise Blutungen der Ösophagusvarizen zu stillen, wird die Ballonsonde in die Speiseröhre einge­ führt, wobei der Ballon 12 entblockiert, also schlaff, ist. Bei Erreichen des gewünschten Ortes wird ein Fluid, beispielsweise physiologische Kochsalzlösung, in den Schlauch eingebracht, bis diese durch die Öffnungen 14 in den Ballon 12 eintritt und diesen füllt. Durch die teilpermeable Ausbildung der Ballonwandung 18 tritt eine geringe Menge des elektrisch leitenden Fluids durch die Ballonwandung 18 hindurch, so daß die Ballonwandung 18 einen definierten und genügend kleinen elekrischen Widerstand bildet.
Eine großflächige Gegenelektrode 20 wird - bei Thrombo­ sierung von Ösophagusvarizen auf den Brustbereich - auf­ gebracht.
Durch Anlegen einer Spannungsquelle zwischen den Platin­ draht 16 und der Gegenelektrode 20 entsteht ein Strom­ fluß zwischen diesen, der bei Wahl einer geeigneten Höhe der Spannung zwischen diesen die gewünschte Thrombosie­ rung bewirkt.
Es versteht sich, daß die Vorsehung eines besonderen Drahtes 16 nicht erforderlich ist, vielmehr kann auch das in dem Schlauch befindliche elektrische leitende Fluid selbst als elektrischer Leiter verwendet werden.
Als elektrisch leitendes Fluid kann statt einer physio­ logischen Kochsalzlösung beispielsweise auch eine Sub­ stanz entsprechend Elektrodengel verwendet werden.
Die hier vorgeschlagene Ballonsonde kann weiterhin bei­ spielsweise zur Behandlung postoperativer Nachblutungen bei Harnröhrenoperationen oder bei Blutungen im Enddarm­ bereich oder aber auch bei Blutungen aus dem Nasen- Rachenraum verwendet werden.
Es kann sich empfehlen, dem elektrisch leitenden Fluid Medikamente zuzugeben, die über eine iontophoretische Gewebsdiffusion blutstillend wirken.

Claims (5)

1. Ballonsonde zur Thrombosierung von dicht unterhalb der Fläche einer schwer zugänglichen Körperhöhlung an­ geordneten Gefäßen durch Bewirken eines elektrischen Stromflusses zwischen dem entblockiert in die Körperhöh­ le eingebrachten und durch Einbringen eines Fluids an Ort und Stelle geblockten Ballon und einer Gegenelektro­ de dadurch gekennzeichnet, daß
  • - das den Ballon (12) blockierende Fluid elektrisch leitend ist, und
  • - die Ballonwandung (18) für das Fluid teilpermeabel ist.
2. Ballonsonde nach Anspruch 1, dadurch gekennzeich­ net, daß der Strom durch einen Draht (16) zu dem Ballon (12) geführt wird.
3. Ballonsonde nach Anspruch 2, dadurch gekennzeich­ net, daß der Draht (16) ein Platindraht ist.
4. Ballonsonde nach einem der vorangehenden Ansprü­ che, dadurch gekennzeichnet, daß das Fluid physiologi­ sche Kochsalzlösung ist.
5. Ballonsonde nach einem der vorangehenden Ansprü­ che, dadurch gekennzeichnet, daß das Fluid als Medikati­ onsträger dient.
DE3915636A 1989-05-12 1989-05-12 Expired - Lifetime DE3915636C1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE3915636A DE3915636C1 (de) 1989-05-12 1989-05-12
EP90107488A EP0396945B1 (de) 1989-05-12 1990-04-19 Ballonsonde zur Thrombosierung von Gefässen
DE59010170T DE59010170D1 (de) 1989-05-12 1990-04-19 Ballonsonde zur Thrombosierung von Gefässen
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

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3915636A DE3915636C1 (de) 1989-05-12 1989-05-12

Publications (1)

Publication Number Publication Date
DE3915636C1 true DE3915636C1 (de) 1990-04-26

Family

ID=6380582

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3915636A Expired - Lifetime DE3915636C1 (de) 1989-05-12 1989-05-12
DE59010170T Expired - Fee Related DE59010170D1 (de) 1989-05-12 1990-04-19 Ballonsonde zur Thrombosierung von Gefässen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59010170T Expired - Fee Related DE59010170D1 (de) 1989-05-12 1990-04-19 Ballonsonde zur Thrombosierung von Gefässen

Country Status (3)

Country Link
US (3) US5047028A (de)
EP (1) EP0396945B1 (de)
DE (2) DE3915636C1 (de)

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WO1994005361A1 (en) * 1992-08-28 1994-03-17 Cortrak Medical, Inc. Polymer matrix drug delivery apparatus and method
WO1994005369A1 (en) * 1992-08-28 1994-03-17 Cortrak Medical, Inc. Internal iontophoresis electrical circuit and waveforms

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EP0396945A2 (de) 1990-11-14
EP0396945B1 (de) 1996-03-06
EP0396945A3 (de) 1991-03-13
US5047028A (en) 1991-09-10
USRE39200E1 (en) 2006-07-18
DE59010170D1 (de) 1996-04-11

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