| 摘要 |
<p>A prosthetic graft device for insertion through a body wall of an organ such as the heart includes a tubular graft and an annular, resilient element at a proximal end of the graft. The resilient element has an undeformed diameter greater than a principal diameter of the graft. Near the resilient element, but distal therefrom, a flange such as a sewing ring is coupled to an outer wall of the tubular graft. A cardiac assist device may be coupled to the tubular graft. Also, a method of securing a prosthetic graft device through a body wall including the step of folding a resilient annular ring attached to a tubular graft such that the resilient ring assumes a first, collapsed configuration having a cross-sectional area smaller than the cross-sectional area of the undeformed ring. The resilient ring is positioned through a body wall until a flange on an outer wall of the tubular graft contacts an outer surface of the wall. The ring is then allowed to resiliently deform to a second configuration, having a larger diameter then the first configuration, capturing the body wall between the resilient ring and the flange.</p> |
