Retrieval device for insertion into a body lumen

Details Retrieval device for insertion into a body lumen Retrieval device for insertion into a body lumen

A - Human Necessities

61

B

A61B 17/00 (2006.01) A61B 17/22 (2006.01) A61F 2/06 (2006.01) A61N 1/05 (2006.01) A61B 17/30 (2006.01)

Patent

CA 2236843

A retrieval device for insertion into a tubular biological lumen of the human or animal body, including a supporting sleeve (1) with a first axial cavity (2), pusher means (3) slidable within the axial cavity, first control means for causing relative movement of the pusher and the supporting sleeve, and flexible gripping means including gripping members (7) circumferentially arranged on the pusher so that they extend forwards within the supporting sleeve and spread out radially when outside said sleeve. The distal end of each gripping member has a hook for engaging an inner surface of a tubular part to be retrieved from the lumen and radially compressing said part when a pulling force is exerted thereon.

Dispositif de capture à introduire dans un conduit tubulaire biologique d'un corps humain ou animal, comprenant une gaine porteuse (1) présentant une première cavité axiale (2), des moyens de poussoir (3) capables de coulisser dans ladite cavité axiale, des permiers moyens de commande permettant un déplacement relatif entre le poussoir et la gaine porteuse, et des moyens de préhension flexibles comprenant des éléments d'accrochage (7) qui sont disposés périphériquement sur le poussoir de manière à s'étendre vers l'avant, à l'intérieur de la gaine porteuse et à s'écarter l'un de l'autre radialement, à l'extérieur de la gaine porteuse, et qui sont chacun pourvus à leur extrémité distale d'un crochet capable d'entrer en prise avec une surface interne d'un matériel tubulaire à capturer dans ledit conduit et de le comprimer radialement par traction.

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