Friction fiber sleeve retraction system

摘要

An implantable system for endoluminal delivery of expandable devices having one or more sleeves and one or more sleeve pull back lines. The sleeve pull back lines enable retraction of the one or more sleeves, with various benefits resulting therefrom.

主权项

1. An implantable system comprising:
an endoluminal device having a distal end and a proximal end; a flexible constraining sleeve surrounding the endoluminal device; a coupling member releasably coupled to the constraining sleeve to retain the endoluminal device toward a delivery configuration suitable for endoluminal delivery; and a sleeve pull back line engaged with the constraining sleeve, the sleeve pull back line disposed between the constraining sleeve and the endoluminal device and extending from the distal end of endoluminal device towards and beyond the proximal end, towards the distal end exterior to the constraining sleeve, back towards the proximal end exterior to the constraining sleeve, and back towards the distal end of the endoluminal device between the constraining sleeve and the endoluminal device to engage the flexible constraining sleeve, the sleeve pull back line being configured to generate frictional force between the sleeve pull back line and the constraining sleeve in response to applying tension to the sleeve pull back line thereby displacing a portion of the constraining sleeve relative to the endoluminal device.