Medical retrieval device

A - Human Necessities – 61 – B

Patent

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A61B 17/22 (2006.01)

Patent

CA 2503013

A medical retrieval device has a multi-prong retrieval assembly. The multi- prong retrieval assembly has a first position, in which the retrieval assembly extends from the distal end of the sheath to form an open ended grasping device, and a second position, in which the retrieval assembly extends from the distal end of the sheath to form a substantially close ended basket-type retrieval device. When the retrieval assembly is used as a basket-type retrieval device, the distal ends of the prongs of the retrieval assembly that form the basket are not connected to each other. Thus, captured objects may be released by the operator, or by applying sufficient force to separate one or more of the prongs.

Dispositif médical d'extraction comportant un ensemble d'extraction pourvu de griffes multiples. Cet ensemble présente une première position dans laquelle il s'étend depuis l'extrémité distale de la gaine afin de constituer un dispositif de saisie à extrémité ouverte, jusqu'à une deuxième position dans laquelle cet ensemble s'étend depuis l'extrémité distale de la gaine, de façon à constituer un dispositif d'extraction semblable à un panier possédant une extrémité pratiquement fermée. Quand on utilise cet ensemble d'extraction sous forme de dispositif de type panier, les extrémités distales des griffes constituant le panier ne sont pas accouplées les unes aux autres. De ce fait, les objets saisis peuvent être relâchés par l'opérateur ou par application d'une force suffisante pour séparer une ou plusieurs des griffes.

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