Power supply using time varying signal for electrolytically detaching implantable device
OwnerMichael Williams, Mehran Bashiri +1inventors
InventorsMichael Williams, Mehran Bashiri, Scott Merchel
Life of this patent
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Abstract
A medical system comprises an implant assembly including an elongated pusher member, an implantable device (e.g., a vaso-occlusive device) mounted to the distal end of the pusher member, and an electrolytically severable joint disposed on the pusher member, wherein the implantable device detaches from the pusher member when the severable joint is severed, the medical system comprising an electrical power supply coupled to the implant assembly, and configured for conveying a time varying signal having net positive electrical energy to the severable joint to detach the implantable device from the pusher member.
Claims65
A medical system, comprising:
- an implant assembly including an elongated pusher member having a proximal end and a distal end, an implantable device mounted to the distal end of the pusher member, and 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
- an electrical power supply coupled to the implant assembly, the power supply configured for conveying a time varying signal having net positive electrical energy to the severable joint to detach the implantable device from the pusher member.
A method of implanting a medical device within a patient, comprising:
- introducing the medical device within the patient via a pusher member;
- and
- conveying a time varying signal having net positive electrical energy to a joint disposed on the pusher member to induce an electrolytic reaction at the joint, wherein the joint is severed to detach the medical device from the pusher member at a target site within the patient.
A power supply, comprising:
- an electrical contact configured for being coupled to an implant assembly having a pusher member and an electrolytically detachable implantable device;
- and
- power delivery circuitry configured for conveying a time varying signal having net positive electrical energy to the electrical contact to electrolytically detach the implantable device from the pusher member.
Dependencies are inferred from the claim text.