Electric endovascular implant depolyment system
AssigneeEndovascular Technologies, Inc.
InventorsReid K. Hayashi, Albert K. Chin
Life of this patent
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Abstract
A system for releasing a graft within vasculature that incorporates graft bindings severed by current-generated heat in a resistive wire element. In one aspect, the graft is held by bindings threaded through a resistive wire loop formed between conducting wires attached to opposite ends of a high resistive wire element. When an external current source is applied to the conducting wires, heat generated in the resistive wire element causes the bindings to sever, thereby allowing the graft to be released within vasculature.
Claims19
A system for releasing a graft within a lumen, said system comprising:
- a graft;
- a delivery catheter adapted to be placed within the lumen;
- an attachment device releasably attaching the graft to the delivery catheter;
- and
- a release source for releasing the attachment device, the release source including one or more resistive wire elements and conducting wires;
- wherein the release source is electrical and facilitates near contemporaneous release of the graft from the attachment device;
- and
- the delivery catheter further comprising an inner catheter configured within the graft, the inner catheter including a conducting wire lumen to receive the conducting wires and at least one opening in communication with each end of each resistive wire element, whereby each conducting wire exits the conducting wire lumen at a different opening to engage one of each resistive wire element, thereby forming one or more resistive wire loops.
A method for releasing a graft within a lumen using a delivery catheter being releasably attached to the graft by an attachment device in combination with an electrical release source, the release source including one or more resistive wire elements and conducting wires and the delivery catheter including an inner catheter with a conducting wire lumen to receive the conducting wires and at least one opening in communication with each end of each resistive wire element, comprising:
- configuring each conducting wire to exit the conducting wire lumen at a different opening to engage one end of each resistive wire element thereby forming one or more resistive wire loops;
- placing the graft and delivery catheter within vasculature of a patient;
- and
- activating the release source to automatically disengage the attachment device from the graft.
Dependencies are inferred from the claim text.