Disposable delivery device for endoluminal prosthesis

摘要

A delivery system (30) for inserting a tubular endoluminal prosthesis (10) into a patient body, the delivery system comprising an outer tube (54) fixed to a housing (50); a shaft (34) extending within the outer tube (54) and fixed to the housing (50); and a sheath (32) extending from the housing between the outer tube (54) and the shaft (34) distally beyond the outer tube (54) and having a lumen capable of receiving the prosthesis (10) near the distal end and being retractable from a first position to a second position relative to the shaft (34) to deploy the prosthesis (10); wherein the outer tube (54) is designed to provide, upon insertion through an introducer valve (82) of an introducer sheath for providing access to a body lumen (84), frictional contact between the introducer valve (82) and the outer tube (54) for helping to maintain the prosthesis (10) at a target location in the body lumen (84) while the sheath (32) is being retracted.