| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heart valve assembly that can effectively mate a valve and a sewing ring together. <P>SOLUTION: The heart valve assembly 10 includes an annular prosthesis 14 and a valve prosthesis 14. The annular prosthesis includes an annular ring 18 for dilating tissue within a biological annulus and a conformable sewing cuff 20 extending radially from an annular member. The valve prosthesis includes a frame 32 and a valve component. The annular ring is introduced into the biological annulus to dilate tissue surrounding the biological annulus and the sewing cuff conforms to tissue above the biological annulus. Fasteners are directed through the sewing cuff to secure the annular prosthesis to the biological annulus. The annular prosthesis may include a baleen element for biasing fabric on the annular ring outwardly to enhance sealing against the biological annulus. The valve prosthesis is then advanced into the sinus cavity, and secured relative to the annular prosthesis. The sewing cuff may enhance a seal between the valve prosthesis and annular prosthesis. <P>COPYRIGHT: (C)2013,JPO&INPIT |
