DEVICE FOR RAPID REPAIR OF BODY CONDUITS

摘要

A self-expanding stent-graft provided in a diametrically compacted state for implantation and retained preferably by a constraining sheath, useful for the temporary or permanent repair of injured, partially or entirely transected body conduits including blood vessels. It may be used under direct visualization to quickly stop or substantially reduce loss of blood from such damaged vessels and to quickly re-establish perfusion distal to the injury site. The device would typically be implanted under emergency room conditions but also be used in field situations by trained medical technicians. After an end of the device is inserted into a blood vessel through the injury access, deployment preferably initiates from the device end in a direction moving toward the middle of the length of the device by directionally releasing the constraining sheath. In a preferred embodiment, the two opposing ends of the device are individually deployable from the compacted, small diameter intended for insertion into a vessel, to the larger diameter at which they fit interferably into a portion of the vessel.

主权项

1. An implantable tubular prosthesis having first and second opposing ends and a lumen extending between the ends wherein said first end, and a lumen and an outer surface extending between the ends, the implantable tubular prosthesis including a vascular graft having a first end and a second end and a stent located at the first end of the vascular graft, a length of the vascular graft extending beyond one end of the stent to the second end of the implantable tubular prosthesis,
wherein the stent is coaxially received with the vascular graft, the stent having a smaller compacted diameter for insertion into a body conduit and a larger expanded diameter for contacting inner surfaces of the body conduit, wherein the compacted stent is contained in a releasable delivery sheath, the delivery sheath having a first end adjacent the first end of the implantable tubular prosthesis and a second end opposite the first end, the releasable delivery sheath including a release line extending away from the first end of the delivery sheath back toward the second end of the delivery sheath where the release line is looped through itself such that upon tensioning the release line at an angle to the longitudinal axis of the prosthesis a portion of the release line between the first and second ends of the delivery sheath is maintained parallel to the longitudinal axis of the prosthesis, and wherein expansion of the stent initiates adjacent the first end of the delivery sheath moving in a direction toward the second end of the delivery sheath.