Surgical implement particularly useful for implanting...

A - Human Necessities – 61 – B

Patent

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A61B 17/04 (2006.01) A61F 2/24 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2243961

A surgical implement (10) particularly useful for implanting a prosthetic valve (4) in an excised annulus includes a manually grippable handle (11), and a suture retainer (15) carried by the handle and having an outer face carrying a coiled spring (16) whose coils define an annular array of slits each having opposed yielding surfaces for receiving and releasably retaining sutures between selected coils. Optimum spacing of the sutures according to the shape of the excised annulus is attained by providing reference ribs (17) between selected coils of the spring, and also by making the outer annular face of the suture retainer of substantially the same shape as that of the excised annulus. Implements are described, with a suture retainer and without a suture retainer, including an illuminating device (211) for artificially illuminating the working area. Also described is a method of implanting a prosthetic valve in a quick and efficient manner using such implements.

Un instrument chirurgical (10), particulièrement utile à l'implantation d'une valvule protétique (4) dans un anneau excisé, comprend une poignée (11) pouvant être saisie manuellement, un élément de retenue de suture (15) porté par la poignée et présentant une face extérieure portant un ressort spiralé (16) dont les spirales définissent un réseau annulaire de fentes présentant chacune des surfaces opposées souples destinées à recevoir et à retenir de façon libérable des sutures entre des spirales sélectionnées. L'espacement optimal des sutures selon la forme de l'anneau excisé est atteint par disposition de nervures de référence (17) entre des spirales sélectionnées du ressort, et également en donnant à la face annulaire extérieure de l'élément de retenue de suture la même forme que celle de l'anneau excisé. Des instruments sont décrits, avec élément de retenue de suture et sans élément de retenue de suture, parmi lesquels un dispositif d'éclairage (211) destiné à éclairer artificiellement la région de travail. Un procédé d'implantation d'une valvule protétique de manière rapide et efficace à l'aide desdits instruments est également décrit.

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