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EP0975283A1 - Prothese de valvules cardiaques - Google Patents

Prothese de valvules cardiaques

Info

Publication number
EP0975283A1
EP0975283A1 EP97929106A EP97929106A EP0975283A1 EP 0975283 A1 EP0975283 A1 EP 0975283A1 EP 97929106 A EP97929106 A EP 97929106A EP 97929106 A EP97929106 A EP 97929106A EP 0975283 A1 EP0975283 A1 EP 0975283A1
Authority
EP
European Patent Office
Prior art keywords
flow
wing flaps
ring plane
ring
flaps
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Withdrawn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
EP97929106A
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Otto
Gerd Pfister
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.)
Tricumed Medizintechnik GmbH
Original Assignee
Tricumed Medizintechnik GmbH
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 Tricumed Medizintechnik GmbH filed Critical Tricumed Medizintechnik GmbH
Publication of EP0975283A1 publication Critical patent/EP0975283A1/fr
Withdrawn legal-status Critical Current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
    • A61F2/2403—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 pivoting rigid closure members

Definitions

  • claim 1 specifies a preferred embodiment of the invention.
  • Fig. 4 shows a section through the heart valve in the state shown in Figure 2 along the line IV-IV.
  • the flap ring 10 is curved in the ring plane in such a way that it largely corresponds to the anatomy of the installation environment. In the area of the mounting of the axles 18, the flap ring 10 is pulled up in order to give the bearings 18 the necessary stability and to form a stop for the wing flaps 12, 14, 16 in their open state.

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic 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

L'invention concerne une prothèse destinée à remplacer les valvules cardiaques. Cette prothèse comprend un anneau (10) de rayon R dans lequel au moins deux clapets (12, 14, 16) de forme sensiblement allongée pivotent autour d'un axe (18) situé respectivement dans le plan de l'anneau. Les axes (18), projetés sur le plan de l'anneau, sont distants du centre dudit plan de 0,5 R à 0,9 R. Lorsque les clapets sont en position fermée, les bords de leurs sections orientées vers l'intérieur, affleurent les bords des sections correspondantes des autres clapets (12, 14, 16). Les surfaces des clapets présentent, au niveau de la section (20) dirigées, en position ouverte, dans le sens du flux, un biseautage (24) formant un bord (22) tranchant de décollement et se profilant de l'extérieur vers l'intérieur dans le sens du flux.
EP97929106A 1996-07-11 1997-06-10 Prothese de valvules cardiaques Withdrawn EP0975283A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19627859 1996-07-11
DE19627859A DE19627859C1 (de) 1996-07-11 1996-07-11 Herzklappenprothese
PCT/DE1997/001226 WO1998002115A1 (fr) 1996-07-11 1997-06-10 Prothese de valvules cardiaques

Publications (1)

Publication Number Publication Date
EP0975283A1 true EP0975283A1 (fr) 2000-02-02

Family

ID=7799481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97929106A Withdrawn EP0975283A1 (fr) 1996-07-11 1997-06-10 Prothese de valvules cardiaques

Country Status (4)

Country Link
US (1) US6179869B1 (fr)
EP (1) EP0975283A1 (fr)
DE (1) DE19627859C1 (fr)
WO (1) WO1998002115A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2305730A1 (fr) * 1998-06-24 1999-12-29 Sulzer Carbomedics Inc. Modification de la geometrie d'attache des valves d'une valvule cardiaque de sorte que l'emplacement et l'ampleur de la contrainte maximum appliquee sur les valves soient influences
FR2822364B1 (fr) 2001-03-22 2003-07-04 Seb Sa Appareil electromenager de preparation culinaire comportant un outil rotatif et un double dispositif de securite
US20040098090A1 (en) * 2002-11-14 2004-05-20 Williams Michael S. Polymeric endoprosthesis and method of manufacture
AU2005234752B2 (en) * 2004-04-16 2010-12-16 Cook, Inc. Removable vena cava filter having primary struts for enhanced retrieval and delivery

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3409005A1 (de) * 1984-03-09 1985-09-19 Hans-Hinrich Dr. 2371 Luhnstedt Sievers Prothese zum ersatz der aortenklappen
FR2587614B1 (fr) * 1985-09-23 1988-01-15 Biomasys Sa Valve cardiaque prothetique
DE3701704C1 (de) * 1987-01-22 1988-08-18 Braun Melsungen Ag Herzklappenprothese
FR2612597B1 (fr) * 1987-03-20 1989-06-23 Colon Jean Valve a au moins un volet basculant par rapport a des pivots elastiques
IN175399B (fr) * 1992-03-26 1995-06-10 Kalke Mhatre Associates
US5522886A (en) * 1994-07-29 1996-06-04 Milo; Simcha Heart valve prostheses
DE19532973C1 (de) * 1995-09-07 1996-11-07 Tricumed Medizintechnik Gmbh Herzklappenprothese

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9802115A1 *

Also Published As

Publication number Publication date
WO1998002115A1 (fr) 1998-01-22
DE19627859C1 (de) 1998-04-16
US6179869B1 (en) 2001-01-30

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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