Medical grasping device

Details Medical grasping device Medical grasping device

A - Human Necessities

61

B

A61B 17/22 (2006.01) A61B 17/221 (2006.01)

Patent

CA 2647106

A medical grasping device (1 ) has an elongate control member (9) with a grasping member ( 17) proximal to its distal tip. An outer sheath (3) with a passageway therethrough surrounds the elongate control member and is relatively movable with respect to the control member. A control assembly (2) disposed at a proximal end of said outer sheath has a fixed handle (5) and a sliding handle (7) and the proximal end of the elongate control member is fixed to the sliding handle to move the control member. The grasping member (17) has a plurality of pre¬ formed wire loops (50, 52, 54, 56) which self-deploy transversely upon emerging from said distal end of said outer sheath. Each wire loop is fastened to substantially opposite sides of the elongate control member so that each of said wire loops is substantially semi-circular upon full deployment and the respective ends (27, 29)of each wire loop extend substantially in opposite directions from the elongate control member.

L'invention concerne un dispositif médical d'agrippement (1) comprenant un élément de commande allongé (9) pourvu d'un élément d'agrippement (17) proximal à la pointe distale de l'élément de commande. Une gaine externe (3) comprenant un canal traversant entoure l'élément de commande allongé et est relativement mobile par rapport à celui-ci. Un ensemble de commande (2) disposé au niveau de l'extrémité proximale de la gaine externe comprend un manche fixe (5) et un manche coulissant (7), et l'extrémité proximale de l'élément de commande allongé est fixée sur le manche coulissant pour déplacer l'élément de commande. L'élément d'agrippement (17) comprend une pluralité de boucles en fil métallique préformées (50, 52, 54, 56) qui s'auto-déploient perpendiculairement lorsqu'elles sortent de l'extrémité distale de la gaine externe. Chaque boucle en fil métallique est fixée à des côtés sensiblement opposés de l'élément de commande allongé, de sorte que chaque boucle soit sensiblement semi-circulaire lorsqu'elle est pleinement déployée et que les extrémités respectives (27, 29) de chaque boucle s'étendent dans des directions sensiblement opposées à partir de l'élément de commande allongé.

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