Medical implant detachment systems

A - Human Necessities – 61 – B

Patent

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A61B 17/12 (2006.01)

Patent

CA 2691969

An implant assembly comprises an elongated pusher member, and an implantable device (e.g., a vaso-occlusive device) mounted to the distal end of the pusher member. The implant assembly further comprises an electrolytically severable joint disposed on the pusher member, wherein the implantable device detaches from the pusher member when the severable joint is severed, and a return electrode carried by the distal end of the pusher member (e.g., a coil disposed about the pusher member) in proximity to, but electrically isolated from, the severable joint. The implant assembly further comprises a terminal carried by the proximal end of the pusher member in electrical communication with the severable joint.

La présente invention concerne un ensemble d'implant comportant un organe de poussée de forme allongée, et un dispositif implantable (par exemple, un dispositif vaso-occlusif) monté à l'extrémité de l'organe de poussée. L'ensemble d'implant comporte également un joint apte à être soumis à un détachement électrolytique disposé sur l'organe de poussée, permettant ainsi le détachement du dispositif implantable depuis l'organe de poussée lors du détachement du joint détachable, et une électrode de retour portée par l'extrémité distale de l'organe de poussée (par exemple, un serpentin disposé autour de l'organe de poussée) à proximité du joint détachable mais électriquement isolé de celui-ci. L'ensemble d'implant comporte en outre une borne portée par l'extrémité proximale de l'organe de poussée en liaison électrique avec le joint détachable.

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