Sleeve retraction system

摘要

The present disclosure describes systems for endoluminal devices utilizing a sleeve for constraining an expandable device toward a constrained configuration suitable for endoluminal delivery to a treatment site along vasculature; and a mechanism for retracting at least a portion of the sleeve.

主权项

1. An implantable system comprising:
a sleeve having a distal end and a proximal end and configured to constrain an endoluminal device; a deployment line configured to form a coupling, the deployment line and coupling being configured to close the sleeve in constraining the endoluminal device; and a sleeve pull back line engaged to in a zig zag pattern near the proximal end of the sleeve, and engaged to the coupling through at least one hole in the sleeve; wherein applying tension to the sleeve pull back line retracts the sleeve whereby the zig zag pattern multiplies the tensile force applied to the sleeve; and wherein applying tension to the deployment line releases the coupling and deploys the endoluminal device.