Stitching devices for heart valve replacement surgery

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/04 (2006.01) A61F 2/24 (2006.01) A61B 17/06 (2006.01)

Patent

CA 2290574

There is provided a surgical suturing apparatus (10), or a stitching device particularly suited for use in suturing artificial heart valves to heart tissue during heart valve replacement surgery. The disclosed apparatus includes a stationary jaw (16) oriented at a predetermined angle relative to the apparatus to facilitate suturing through the artificial valve in a direction generally parallel to the axis of the valve. One embodiment of the stitching device utilizes a pair of surgical needles (304) or incision members joined by a single length of suture material (306). There are also disclosed disposable loading units (30) for providing suture/needle assemblies to the suturing apparatus. Also disclosed are methods of suturing an artificial heart valve to heart tissue using the disclosed apparatus.

L'invention concerne un dispositif de suture chirurgical (10), ou un dispositif de suture particulièrement adapté à l'utilisation lors de la suture de valvules cardiaques artificielles sur les tissus cardiaques au cours d'une opération consistant à remplacer une valvule cardiaque. Le dispositif selon l'invention comporte une mâchoire fixe (16) orientée selon un angle prédéterminé par rapport audit dispositif et ce, dans le but de faciliter la réalisation des sutures dans la valvule artificielle dans un sens généralement parallèle à l'axe de la valvule. Selon un mode réalisation dudit dispositif de suture, il faut utiliser une paires d'aiguilles chirurgicales (304) ou d'éléments d'incision réunis par une simple longueur de matériau de suture (306). L'invention concerne également des unités de charge jetables (30) destinées à fournir des ensembles de suture/d'aiguilles à ce dispositif de suture. L'invention se rapporte enfin à des procédés de suture d'une valvule cardiaque artificielle sur des tissus cardiaques utilisant le dispositif selon l'invention.

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