초록 ▼

A natural tissue heart valve prosthesis mounted in a cloth-covered, generally anatomical stent is disclosed. The prosthesis includes an annular implantation flange attached to the exterior base portion of the stent between the inflow end and the outflow end of the stent base and a pericardium strip

A natural tissue heart valve prosthesis mounted in a cloth-covered, generally anatomical stent is disclosed. The prosthesis includes an annular implantation flange attached to the exterior base portion of the stent between the inflow end and the outflow end of the stent base and a pericardium strip attached to at least a portion of the outflow rails of the prosthesis to generally inhibit abrasion between the cusps of the valve and the cloth covering of the stent structure.

대표청구항 ▼

[ What is claimed is:] [1.] A natural tissue heart valve prosthesis having inflow and outflow ends primarily intended for replacing a patient's defective heart valve, said prosthesis comprising:a tanned natural tissue heart valve having a generally cylindrical valve wall, an inflow end, and a plural

[ What is claimed is:] [1.] A natural tissue heart valve prosthesis having inflow and outflow ends primarily intended for replacing a patient's defective heart valve, said prosthesis comprising:a tanned natural tissue heart valve having a generally cylindrical valve wall, an inflow end, and a plurality of cusps attached adjacent said inflow end of said valve and extending to a position proximal said outflow end of said valve;a stent having an inflow end, an outflow end, an annular base portion proximal said stent inflow end and at least three generally elongated posts extending from said stent base in a generally parallel and spaced apart relation that generally corresponds to the position of said cusps, said stent having interior and exterior portions, and said valve attached within said stent interior portion such that said inflow end of said valve is positioned adjacent said inflow end of said stent with said outflow end of said valve proximal said posts;a generally nonabsorbent textile material covering at least a portion of said stent; anda pericardium strip having first and second ends attached along at least a portion of said textile material of said outflow end of said stent to inhibit abrasion between said cusps and said textile material covering said stent.