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1. EP0477325 - VALVULE CARDIAQUE BIOPROTHETIQUE A COMMISSURES ELASTIQUES.

Office Office européen des brevets (OEB)
Numéro de la demande 91907342
Date de la demande 03.04.1991
Numéro de publication 0477325
Date de publication 01.04.1992
Type de publication B1
CIB
A61F 2/24
ANÉCESSITÉS COURANTES DE LA VIE
61SCIENCES MÉDICALE OU VÉTÉRINAIRE; HYGIÈNE
FFILTRES IMPLANTABLES DANS LES VAISSEAUX SANGUINS; PROTHÈSES; DISPOSITIFS MAINTENANT LE PASSAGE OU ÉVITANT L'AFFAISSEMENT DE STRUCTURES CORPORELLES TUBULAIRES, p.ex. STENTS; DISPOSITIFS D'ORTHOPÉDIE, DE SOINS OU DE CONTRACEPTION; FOMENTATION; TRAITEMENT OU PROTECTION DES YEUX OU DES OREILLES; BANDAGES, PANSEMENTS OU GARNITURES ABSORBANTES; NÉCESSAIRES DE PREMIERS SECOURS
2Filtres implantables dans les vaisseaux sanguins; Prothèses, c.à d. éléments de substitution ou de remplacement pour des parties du corps; Appareils pour les assujettir au corps; Dispositifs maintenant le passage ou évitant l'affaissement de structures corporelles tubulaires, p.ex. stents
02Prothèses implantables dans le corps
24Valvules de cœur
CPC
A61F 2/2418
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
24Heart 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
2412with soft flexible valve members, e.g. tissue valves shaped like natural valves
2418Scaffolds therefor, e.g. support stents
A61F 2/2409
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
24Heart 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
2409Support rings therefor, e.g. for connecting valves to tissue
A61F 2220/0075
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2220Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
0025Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
0075sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
Y10S 623/90
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
623Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
90Stent for heart valve
Déposants CARBOMEDICS INC
Inventeurs LANE ERNEST
États désignés
Données relatives à la priorité 50827590 11.04.1990 US
9102128 03.04.1991 US
Titre
(DE) BIOPROSTHETISCHE HERZKLAPPE MIT ELASTISCHEN VERBINDUNGSSTELLEN.
(EN) BIOPROSTHETIC HEART VALVE WITH ELASTIC COMMISSURES.
(FR) VALVULE CARDIAQUE BIOPROTHETIQUE A COMMISSURES ELASTIQUES.
Abrégé
(EN)
A bioprosthetic heart valve (10) comprising first and second mechanisms for supporting leaflets (16) to provide multiple effective spring constants. An inner frame (12) supporting commissures (24, 26, 28) of the valve is elastic, permitting the commissures to bend in toward the center of the prosthetic heart valve at very low loads. A relatively rigid annular support ring (14) supports the elastic frame (12) and provides the second spring constant mechanism. An attachment system for sewing bioprosthetic leaflets to the frame and clamping the leaflets between the frame and the annular ring minimizes stress risers in the leaflets. The leaflets have an uncoupled mating edge (84) where the leaflets meet in the center of the valve. The uncoupled portions of the leaflets permit the leaflets to roll by each other.

(FR)
Valvule cardiaque bioprothétique (10) comprenant des premier et second mécanismes destinés à supporter des valves (16) afin de produire des constantes de flexibilité de ressorts multiples efficaces. Un cadre intérieur (12) supportant des commissures (24, 26, 28) de la valvule est élastique, permettant auxdites commissures de se plier intérieurement vers le centre de la valvule cardiaque prothétique à des charges très faibles. Un ressort de support annulaire relativement rigide (14) supporte le cadre élastique (12) et il constitue le second mécanisme à constantes de flexibilité de ressort. Un système de fixation permettant de coudre des valves prothétiques au cadre et de serrer les valves entre le cadre et la bague annulaire réduit au minimum les pointes de contrainte dans les valves. Les valves présentent un bord d'appariement non couplé (84) où les valves se rencontrent au centre de la valvule. Les parties non couplées des valves permettent à ces dernières de rouler l'une contre l'autre.

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