Delivery system ejection component and method

摘要

A stent or stent-graft delivery system includes a stent ejection component. The stent ejection component includes a body and an ejection collar. The ejection collar extends from the body in the proximal direction. The ejection collar assists in automatically ejecting a proximal end of a stent when the tapered tip is moved in the distal direction to deploy the stent. A stent or stent-graft delivery system may also include a retain-sleeve landing component. The retaining-sleeve landing component includes a body and a landing collar. The landing collar extends from the body in a distal direction. The landing collar automatically captures a tapered tip of the delivery system when the tapered tip is moved in a distal direction to deploy a stent contained in the delivery system. Upon capture of the tapered tip, the stent ejection component with the tapered tip attached has an atraumatic profile.