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US 9,308,108 B2Granted
Controlled release and recapture stent-deployment device
AssigneeCook Medical Technologies LLC
InventorVincent McHugo
Life of this patent
Estimating the term…
Abstract
A delivery device for deploying and resheathing an expandable prosthesis such as a stent. The delivery device includes a movable outer sheath and a fixed pusher/holder member that are configured for the sheath to retract in a proximal direction to release and/or to extend distally to resheath the stent. The device includes a spring-tensioned anti-backlash mechanism to accommodate any backlash elongation and/or compression of the pusher/holder member and sheath.
Claims12
A controlled release and recapture prosthetic deployment device comprising:
- a handle including a handle body;
- a tubular sheath;
- a sheath-attached puller extending slidably through the handle body and fixedly attached to the sheath;
- and
- an elongate stent-holder member fixedly extending through and distally out from the handle body, and further extending through a longitudinal lumen of the sheath, which sheath is slidable relative to the stent-holder member;
- wherein the handle comprises:
- a retaining member in the handle body, where the retaining member is biased toward a distal end of the device;
- a keeper member in the handle body, where the keeper body releasably engages the sheath-attached puller and is also biased toward the distal end of the device;
- and
- a first trigger member,
- pivotable relative to the handle body,
- disposed in mechanical communication with the retaining member, and
- configured to move the retaining member and the sheath-attached puller proximally when the trigger member is pivoted in a first direction.
10 more elements
Dependencies are inferred from the claim text.