STENT DELIVERY AND DEPLOYMENT SYSTEM

摘要

A stent delivery and deployment system (10) for use primarily with self-expanding stents (12), incorporating a traction tube (16) extending over the length of the diametrically compacted and constrained stent and everting back over itself, with the outer everted portion (19) of the traction tube (18) preferably extending to the proximal end of the delivery system. A constraining sleeve (14) is provided between the inner, non-everted portion and outer, everted portion of the traction tube, the constraining sheath extending over the length of the constrained stent prior to deployment and diametrically constraining the diametrically compacted self-expanding stent. The application of tension (27) to the proximal end of the traction tube causes the constraining sheath to move in a proximal direction, freeing the constrained stent as it moves and allowing the stent to deploy against the wall of the body conduit within which it is located during the deployment process.