ATE196415T1 - Verbesserte herzklappe und ihr herstellungsverfahren - Google Patents

Verbesserte herzklappe und ihr herstellungsverfahren

Info

Publication number
ATE196415T1
ATE196415T1 AT93303377T AT93303377T ATE196415T1 AT E196415 T1 ATE196415 T1 AT E196415T1 AT 93303377 T AT93303377 T AT 93303377T AT 93303377 T AT93303377 T AT 93303377T AT E196415 T1 ATE196415 T1 AT E196415T1
Authority
AT
Austria
Prior art keywords
valve
disc
housing
uhmw
cobalt
Prior art date
Application number
AT93303377T
Other languages
English (en)
Inventor
Gobichettipalayam Bhuvaneshwar
Tirunal Satelmond Palac Chitra
Muraleedharan Chira Vayalappil
Satelmond Palace Tirunal
Omana Amma Sreedharan Nair
Original Assignee
Nat Res Dev
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 Nat Res Dev filed Critical Nat Res Dev
Application granted granted Critical
Publication of ATE196415T1 publication Critical patent/ATE196415T1/de

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A61L27/507—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials for artificial blood vessels
    • 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
    • A61F2/2409—Support rings therefor, e.g. for connecting valves to tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14—Macromolecular materials
    • A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/068—Ultra high molecular weight polyethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Dermatology (AREA)
  • Medicinal Chemistry (AREA)
  • Epidemiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Prostheses (AREA)
  • Check Valves (AREA)
  • External Artificial Organs (AREA)
  • Lift Valve (AREA)
AT93303377T 1993-04-29 1993-04-29 Verbesserte herzklappe und ihr herstellungsverfahren ATE196415T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93303377A EP0622060B1 (de) 1993-04-29 1993-04-29 Verbesserte Herzklappe und ihr Herstellungsverfahren
JP12156993A JP3468794B2 (ja) 1993-04-29 1993-05-24 心臓弁膜組立体

Publications (1)

Publication Number Publication Date
ATE196415T1 true ATE196415T1 (de) 2000-10-15

Family

ID=26134283

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93303377T ATE196415T1 (de) 1993-04-29 1993-04-29 Verbesserte herzklappe und ihr herstellungsverfahren

Country Status (6)

Country Link
EP (1) EP0622060B1 (de)
JP (1) JP3468794B2 (de)
AT (1) ATE196415T1 (de)
DE (1) DE69329452T2 (de)
ES (1) ES2149802T3 (de)
PT (1) PT622060E (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824629A (en) * 1969-03-24 1974-07-23 D Shiley Pivoted discoid heart valve having a changing pivot axis
US4197593A (en) * 1978-03-03 1980-04-15 Kastec Corporation Rotatably positionable heart valve and method
US4532659A (en) * 1982-09-07 1985-08-06 Angicor Limited Prosthetic heart valve with plano-convex disk occluder
ATE48524T1 (de) * 1982-09-07 1989-12-15 Angicor Ltd Herzklappenprothese mit plankonvexem verschlussteil.
US4556996A (en) * 1983-08-04 1985-12-10 Robert S. Wallace Heart valve
DE3343859A1 (de) * 1983-12-03 1985-06-13 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Verfahren zur herstellung von bauteilen aus unidirektionalen, kristallinen kunststoffen
BR8907795A (pt) * 1988-12-02 1991-08-27 Du Pont Processo para produzir artigos moldados de polietileno linear de peso molecular ultra elevado

Also Published As

Publication number Publication date
JP3468794B2 (ja) 2003-11-17
EP0622060B1 (de) 2000-09-20
EP0622060A1 (de) 1994-11-02
PT622060E (pt) 2001-03-30
ES2149802T3 (es) 2000-11-16
DE69329452D1 (de) 2000-10-26
JPH0795995A (ja) 1995-04-11
DE69329452T2 (de) 2001-02-15

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee