Delivery system for embolic braid
AssigneeDePuy Synthes Products, Inc.
InventorLacey GOROCHOW
Life of this patent
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Abstract
A device for treating an aneurysm by releasing an implanted implant from a delivery system at a treatment site can include a braided implant attached to a releasing component that can be detachably engaged with a delivery tube and a pull wire. The releasing component can engage the delivery tube in a compressed configuration via friction fit and can disengage the delivery tube by expanding to a released or deployed configuration. The pull wire can have an extending portion that can engage the releasing component and an elongated portion that can be pulled to disengage the releasing component. The braided implant, once implanted, can be released from the delivery tube by disengaging the pull wire from the releasing component and disengaging the releasing component from the delivery tube.
Claims19
A system for releasing an implant in an aneurysm, the system comprising:
- a braided implant;
- a delivery tube comprising a lumen therethrough, a distal end, an outer surface, and a channel disposed on the outer surface;
- a releasing component comprising:
- a band comprising an outer surface attached to a first portion of the braided implant and a lumen encompassing the delivery tube approximate the distal end of the delivery tube, and
- a spring member attached to the band, the spring member movable from a compression configuration to an extended configuration, the compression configuration pressing the outer surface of the delivery tube, and the extended configuration extending away from the outer surface of the delivery tube;
- and
- a pull wire positioned within the channel of the delivery tube, the pull wire movable from an engaging configuration to a releasing configuration, the engaging configuration engaging the releasing component, and the releasing configuration allowing the spring member to expand to its extended configuration.
A device for treating an aneurysm, the device comprising:
- a tubular delivery member comprising a distal delivery end, an interior, and an exterior;
- a braided tubular implant comprising:
- a distal implant end extending outward from the distal delivery end of the tubular delivery member and folding proximally over a portion of the exterior of the tubular delivery member, and
- a proximal implant end positioned within the interior of the tubular delivery member;
- a releasing component attached to the distal implant end and detachably attached to the exterior of the tubular delivery member approximate the distal delivery end;
- and
- a bending member positioned approximate the distal delivery end of the tubular delivery member, the bending member comprising a bent configuration and a straight configuration, the bent configuration engaging a distal surface of the releasing component, and the straight configuration being disengaged from the distal surface of the releasing component.
A method for releasing an implant at an aneurysm treatment site, the method comprising:
- providing a braided implantation delivery system, wherein the implantation delivery system comprises a braided implant, a delivery tube, a releasing component, and a pull wire;
- engaging the pull wire to the releasing component;
- engaging the releasing component to the delivery tube;
- implanting the braided implant at the treatment site;
- pulling the pull wire to disengage from the releasing component;
- disengaging the releasing component from the delivery tube;
- and
- releasing the releasing component from the delivery tube which releases the braided implant from the delivery tube.
Dependencies are inferred from the claim text.