A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 5/00 (2006.01) A61M 25/01 (2006.01)
Patent
CA 2216112
This invention has a guidewire extension capability for use in a medical procedure having a guidewire (12) and a guidewire extension (13). The guidewire comprises a flexible elongate cylindrical member (16) having proximal and distal extremities. A portion of the distal extremity is formed of a material having high torque ability and high push ability. The guidewire extension comprises a flexible elongate cylindrical member formed of a shape memory material. A major portion of the flexible elongate cylindrical member of the guidewire extension has a shape memory in the form of a coil so that when it is free it will assume a shape memory coil. A junction (14) is formed between the proximal extremity of the guidewire (17) and the distal extremity of the guidewire extension (33) to the guidewire.
L'invention concerne un fil-guide extensible utilisable en médecine, composé d'un fil-guide (12) et de son extension (13). Le fil-guide se compose d'une partie cylindrique allongée souple (16) terminée par une extrémité proximale et une extrémité distale. L'extrémité distale est faite en partie d'un matériau offrant une grande résistance à la torsion et à la poussée. L'extension se compose d'une partie cylindrique allongée souple faite d'un matériau à mémoire de forme. Une grande partie de la portion cylindrique allongée souple de l'extension du fil-guide est faite d'un matériau à mémoire de forme en bobine, de telle sorte que lorsqu'elle est libre elle prend la forme d'une bobine. Un raccord (14) relie l'extrémité proximale du fil-guide (17) et l'extrémité distale de l'extension du fil-guide (33).
Brooks Dennis L.
Gandhi Deepak R.
Imran Mir A.
Intella Interventional Systems Inc.
Smart & Biggar
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