Heart valve prosthesis
US4192020A · kind A · utility
68Cited by
3References
14Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 25, 1977 |
| Grant date | Mar 11, 1980 |
| Priority date | — |
| Expiry date | Apr 25, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S623/90
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A prosthesis for an inadequate or diseased heart valve, the prosthesis being formed of a porous fabric comprising multifilament synthetic yarns supported on a plural-lobed frame. The frame has generally parallel legs each comprising a pair of rod portions. The fabric is inserted between the rod portions of the legs to form flexible leaflets. Each leaflet consists essentially of a textile of filaments having a substantial number of open interstitial spaces in the range of 20 to 40 microns evenly distributed throughout the fabric. The resulting composite structures are free of thrombogenic complications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.