发明名称 |
Natural tissue heat valve and method of making same |
摘要 |
A low profile natural tissue heart valve with a one-piece fabric covering is applied to a stent in a minimum number of steps so that virtually no seams are exposed. The one-piece covering serves also to enclose and mount the sewing ring to avoid separation from the stent. The procedure employed enables use of bovine pericardium united as a single piece to the exterior of the stent and fixed in position in such a way as to avoid prolapsing in use.
|
申请公布号 |
US4477930(A) |
申请公布日期 |
1984.10.23 |
申请号 |
US19820425553 |
申请日期 |
1982.09.28 |
申请人 |
MITRAL MEDICAL INTERNATIONAL, INC. |
发明人 |
TOTTEN, ROBERT P.;TOTTEN, GAIL S.;WILSON, MARY A. |
分类号 |
A61F2/24;(IPC1-7):A61F1/22 |
主分类号 |
A61F2/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|