ES2149802T3 - Mejora en la protesis valvular cardiaca, o en relacion con ella, y en el metodo de fabricacion de la misma. - Google Patents

Mejora en la protesis valvular cardiaca, o en relacion con ella, y en el metodo de fabricacion de la misma.

Info

Publication number
ES2149802T3
ES2149802T3 ES93303377T ES93303377T ES2149802T3 ES 2149802 T3 ES2149802 T3 ES 2149802T3 ES 93303377 T ES93303377 T ES 93303377T ES 93303377 T ES93303377 T ES 93303377T ES 2149802 T3 ES2149802 T3 ES 2149802T3
Authority
ES
Spain
Prior art keywords
valve
disc
housing
uhmw
cobalt
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
ES93303377T
Other languages
English (en)
Inventor
Gobichettipalayam Bhuvaneshwar
Muraleedharan Chira Vayalappil
Omana Amma Sreedharan Nair
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.)
NAT RES DEV
National Research Development Corp UK
Original Assignee
NAT RES DEV
National Research Development Corp UK
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, National Research Development Corp UK filed Critical NAT RES DEV
Application granted granted Critical
Publication of ES2149802T3 publication Critical patent/ES2149802T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)

Abstract

SE PROPORCIONA UN CONJUNTO DE VALVULA PERFECCIONADA QUE TIENE UN ALOJAMIENTO DE VALVULA, UN ANILLO DE COSTURA SOSTENIDO EN LA SUPERFICIE EXTERIOR DEL ALOJAMIENTO DE LA VALVULA Y UN OBTURADOR DE DISCO BASCULABLEMENTE SOSTENIDO SOBRE SOPORTES ADECUADOS DENTRO DEL ALOJAMIENTO. EL ANILLO DE COSTURA ES DE POLIESTER, EL ALOJAMIENTO DE LA VALVULA ES DE UNA ALEACION DE COBALTO-NIQUEL O COBALTO, CROMO, TUNGSTENO, O DE ALEACIONES DE TITANIO/TITANIO. EL DISCO DE LA VALVULA ESTA HECHO DE POLIETILENO DE UN GRAN PESO MOLECULAR MODIFICADO. TAMBIEN SE DESCRIBE UN PROCESO PARA LA FABRICACION DEL CONJUNTO DE VALVULA, EN EL QUE EL DISCO DE VALVULA Y MODIFICACION DE UHMW-PE TIENEN LUGAR SIMULTANEAMENTE. EL PROCESO ESPECIAL COMPRENDE CRIOMAQUINADO DE UNA PIEZA EN BRUTO DE UHMW-PE, COMPACTACION EN ESTADO SOLIDO DE LA PIEZA EN BRUTO, RECOCIDO DEL COMPACTO, SEGUIDO DE FASES POSTERIORES DE CRIOMAQUINADO, RECOCIDO Y LIMPIEZA.
ES93303377T 1993-04-29 1993-04-29 Mejora en la protesis valvular cardiaca, o en relacion con ella, y en el metodo de fabricacion de la misma. Expired - Lifetime ES2149802T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP93303377A EP0622060B1 (en) 1993-04-29 1993-04-29 Improvement in or relating to prosthetic cardiac valve and to the method of manufacturing same
JP12156993A JP3468794B2 (ja) 1993-04-29 1993-05-24 心臓弁膜組立体

Publications (1)

Publication Number Publication Date
ES2149802T3 true ES2149802T3 (es) 2000-11-16

Family

ID=26134283

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93303377T Expired - Lifetime ES2149802T3 (es) 1993-04-29 1993-04-29 Mejora en la protesis valvular cardiaca, o en relacion con ella, y en el metodo de fabricacion de la misma.

Country Status (6)

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

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 (en) 2000-09-20
EP0622060A1 (en) 1994-11-02
PT622060E (pt) 2001-03-30
ATE196415T1 (de) 2000-10-15
DE69329452D1 (de) 2000-10-26
JPH0795995A (ja) 1995-04-11
DE69329452T2 (de) 2001-02-15

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