Catheter system for treating a vascular occlusion

Details Catheter system for treating a vascular occlusion Catheter system for treating a vascular occlusion

A - Human Necessities

61

M

A61M 29/00 (2006.01) A61B 17/22 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2319064

Disclosed herein is a blunt end assembly including a catheter and a blunt end member. The blunt end member includes jaw sections which have a first closed position for locating the blunt end member at the site of the occlusion within the native lumen of the blood vessel and a second open position wherein the jaw sections are able to press against the interior walls of the lumen adjacent the occlusion. The assembly includes an actuation member for moving the jaw sections from the closed to the open positions repeatedly resulting in a fracturing of the occlusion. A guide wire may be thread through an internal opening in the catheter and the blunt end member and after fracturing, across the occlusion.

L'invention concerne un appareil à extrémité franche consistant en un cathéter et un élément à extrémité franche. Cet élément comporte des mâchoires d'abord fermées lors de son positionnement au niveau de l'occlusion dans la lumière naturelle du vaisseau sanguin, puis s'ouvrant afin d'exercer une pression contre les parois intérieures de la lumière à côté de l'occlusion. L'appareil comporte également un élément actionneur qui ouvre et ferme les mâchoires à maintes reprises afin de rompre l'occlusion. Un filament peut être introduit via un orifice interne dans le cathéter et l'élément à extrémité franche puis, une fois l'occlusion fracturée, à travers l'occlusion.

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