DE3207690A1 - Venous valve prosthesis/artificial venous valve - Google Patents

Venous valve prosthesis/artificial venous valve

Info

Publication number
DE3207690A1
DE3207690A1 DE19823207690 DE3207690A DE3207690A1 DE 3207690 A1 DE3207690 A1 DE 3207690A1 DE 19823207690 DE19823207690 DE 19823207690 DE 3207690 A DE3207690 A DE 3207690A DE 3207690 A1 DE3207690 A1 DE 3207690A1
Authority
DE
Germany
Prior art keywords
venous valve
venous
diameter
valve prosthesis
artificial
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.)
Withdrawn
Application number
DE19823207690
Other languages
German (de)
Inventor
Karl-Egon Dr. med. 1000 Berlin Gaul
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
Priority to DE19823207690 priority Critical patent/DE3207690A1/en
Publication of DE3207690A1 publication Critical patent/DE3207690A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2475—Venous valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2469—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with resilient valve members, e.g. conical spiral
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0091—Three-dimensional shapes helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

Published without abstract.

Description

Beschreibungdescription

Das menschliche Venensystem enthält insbesondere in den unteren Extremitäten sogenannte Venenklappen. Diese haben die Aufgabe, den venösen Rückstrom des Blutes zum Herzen dadurch zu unterstützen, daß sie zwischen den Pumphüben der Muskelkontraktionen den Rücklauf unter dem Einfluß der Erdbeschleunigung verhindern. Wenn unter dem Einfluß von Krankheit und Alter diese Venenklappen undicht werden, so kommt es zur Stagnation des Blutes. Die Ursache liegt in der Annäherung des Gleichgewichtes des hydrostatischen Druckes, der dem venösen Druck entgegengerichtet ist.The human venous system contains particularly in the lower extremities so-called venous valves. These have the task of the venous return flow of the blood to assist the heart by giving muscle contractions between pump strokes prevent the return movement under the influence of gravitational acceleration. If under the Influence of illness and age these venous valves become leaky, so it comes to Stagnation of blood. The cause lies in the approximation of the equilibrium of the hydrostatic pressure, which is opposite to the venous pressure.

Es sind Versuche bekannt, die defekten physiologischen Venenklappen durch Prothesen zu ersetzen. Dafür wurden vorzugsweise mechanische Klappensysteme vorgeschlagen. Diese haben zwei Wachteile: Die Lager der Klappenhalterungen unterliegen einer mechanischen Abnutzung und die Klappendeckel zertriimmern beim Schließvorgang stets eine Anzahl von Blutplättchen.Attempts are known to repair defective physiological venous valves to be replaced by prostheses. Mechanical valve systems were preferred for this suggested. These have two guard parts: The bearings of the flap brackets are defeated mechanical wear and tear and the flap cover shatter during the closing process always a number of platelets.

Diese Nachteile werden durch die nachfolgend beschriebene Erfindung verhindert: Das in Fig. 1 dargestellte mechanische spiralförmige Ventil ist mit seinem Grundring 1 mit der Venenwand fest verbunden.These disadvantages are alleviated by the invention described below prevents: The mechanical spiral valve shown in Fig. 1 is with its base ring 1 is firmly connected to the vein wall.

Der Ring enthält kegelförmig angeordnet eine im Durchmesser abnehmende schneckenförmige Kunststoffspirale 2, die unter dem Einfluß des hydrostatischen Blutdruckes den Durchmesser verschließt.The ring contains a conically arranged one with a decreasing diameter helical plastic spiral 2, which is under the influence of the hydrostatic Blood pressure closes the diameter.

Der von unten kommende zu denkende venöse Blutstrom hebt die Spirale an und gibt einen Teil des Querschnitts des Ringes 1 frei. Im nächsten Takt wird durch den von oben kommend zu.The imaginary venous blood flow coming from below lifts the spiral and is part of the cross section of the ring 1 free. The next bar will by coming from above.

denkenden hydrostatischen Blutdruck die Spirale 2 geschlossen.thinking hydrostatic blood pressure the spiral 2 closed.

Das in Fig.2 dargestellte mechanische #Ventil besteht aus einem ringförmigen Träger 1 vom Gefäßdurchmesser.The mechanical #valve shown in Fig.2 consists of an annular Carrier 1 of the vessel diameter.

Der Träger enthält 3 oder mehr dreieckige Ventilsegmente 2, die in drucklosem Zustand den Durchmesser des ringförmigen Trägers verschließen.The carrier contains 3 or more triangular valve segments 2, which in close the diameter of the ring-shaped carrier in the unpressurized state.

Der von unten kommende zu denkende venöse Blutstrom hebt die dreieckigen Segmente 2 an und gibt somit den Blutstrom durch den Ringdurchmesser frei.The venous blood flow to be thought coming from below lifts the triangular ones Segments 2 and thus releases the blood flow through the ring diameter.

Im nächsten Takt wird durch den von oben kommend zu denkenden hydrostatisch Blutdruck das Klappensystem 2 wieder geschlossen.In the next cycle, the thinking coming from above becomes hydrostatic Blood pressure the valve system 2 closed again.

Claims (1)

Venenklappenprothese Ans#rüche: 1. Venenklappenprothese, dadurch gekennzeichnet, daß ein ringförmiger, flexibler Träger eine im Durchmesser abnehmende Kuns ts to ffspirale trägt, die kegelförmig den Durchmesser des Ringes verschließt, 2. Venenklappenprothese, dadurch gekennzeichnet, daß ein ringförmiger Träger 3 oder mehr dreieckige Ventilsegmente enthält, deren Kanten. im belastungsfreien Zustand den Ringdurchmesser verschließen.Venous valve prosthesis Claims: 1. Venous valve prosthesis, characterized that an annular, flexible support is a plastic that decreases in diameter wears ffspirale, which conically closes the diameter of the ring, 2nd venous valve prosthesis, characterized in that an annular carrier has 3 or more triangular valve segments contains whose edges. Close the ring diameter in the no-load condition.
DE19823207690 1982-03-01 1982-03-01 Venous valve prosthesis/artificial venous valve Withdrawn DE3207690A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823207690 DE3207690A1 (en) 1982-03-01 1982-03-01 Venous valve prosthesis/artificial venous valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823207690 DE3207690A1 (en) 1982-03-01 1982-03-01 Venous valve prosthesis/artificial venous valve

Publications (1)

Publication Number Publication Date
DE3207690A1 true DE3207690A1 (en) 1983-09-08

Family

ID=6157234

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823207690 Withdrawn DE3207690A1 (en) 1982-03-01 1982-03-01 Venous valve prosthesis/artificial venous valve

Country Status (1)

Country Link
DE (1) DE3207690A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH680263A5 (en) * 1989-07-20 1992-07-31 Norman Godin
DE4204138A1 (en) * 1992-02-12 1993-08-19 Bruno Maria Dr Med Zimmermann Heart valve prosthesis formed by conical spring - which is wound with coils pressed together and which open to allow flow of blood.
US5500014A (en) * 1989-05-31 1996-03-19 Baxter International Inc. Biological valvular prothesis
US5824061A (en) * 1989-05-31 1998-10-20 Baxter International Inc. Vascular and venous valve implant prostheses
GB2371988A (en) * 2001-02-08 2002-08-14 Tayside Flow Technologies Ltd Valve
EP2522309A1 (en) * 2011-05-10 2012-11-14 Biotronik AG Valve for a heart valve prosthesis
US11224512B2 (en) 2018-03-21 2022-01-18 Edwards Lifesciences Corporation Coronary artery check valve

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500014A (en) * 1989-05-31 1996-03-19 Baxter International Inc. Biological valvular prothesis
US5824061A (en) * 1989-05-31 1998-10-20 Baxter International Inc. Vascular and venous valve implant prostheses
US5997573A (en) * 1989-05-31 1999-12-07 Baxter International, Inc. Stent devices and support/restrictor assemblies for use in conjunction with prosthetic vascular grafts
CH680263A5 (en) * 1989-07-20 1992-07-31 Norman Godin
DE4204138A1 (en) * 1992-02-12 1993-08-19 Bruno Maria Dr Med Zimmermann Heart valve prosthesis formed by conical spring - which is wound with coils pressed together and which open to allow flow of blood.
GB2371988A (en) * 2001-02-08 2002-08-14 Tayside Flow Technologies Ltd Valve
GB2371988B (en) * 2001-02-08 2002-12-24 Tayside Flow Technologies Ltd Valve
US7112220B2 (en) 2001-02-08 2006-09-26 Tayside Flow Technologies Limited Valve
EP2522309A1 (en) * 2011-05-10 2012-11-14 Biotronik AG Valve for a heart valve prosthesis
US11224512B2 (en) 2018-03-21 2022-01-18 Edwards Lifesciences Corporation Coronary artery check valve

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee