ENDOVASCULAR GRAFT AND GRAFT TRIMMER

摘要

An endovascular graft includes a flexible graft body dimensioned for positioning within a body vessel and having an outer wall defining an opening therethrough, and an elastic polymer strip mounted to the outer wall of the graft body. The elastic strip is dimensioned to increase an effective strength of the outer wall to thereby facilitate support of the body vessel upon implantation of the graft body therewithin. The graft body is preferably bifurcated including a tubular body defining a longitudinal opening and first and second legs connected to the tubular body. The first and second graft legs each define a longitudinal opening in communication with the longitudinal opening of the tubular body. The tubular body and the first and second legs preferably include the elastic polymer strip. The polymer strip is dimensioned to extend substantially along the lengths of the respective tubular body and the first and second legs. The graft elastic polymer strip may be helically disposed relative to the graft body. The graft elastic polymer strip may comprise a biodegradable polymer. Suitable polymers include may be selected from the group consisting of polyglyocolide, polylactide, and copolymers of glycolide and lactide. The graft body may include two sheets of graft material joined together with elastic polymer strip disposed between the two sheets of graft material. The elastic polymer strip may includes vascular medication for treatment of the patient. Preferably, a plurality of elastic polymer strips helically disposed relative to the graft body.