Prosthetic valve
US4204283A · kind A · utility
223Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1978 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | May 3, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7903
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthetic valve, suitable for use as a mitral valve replacement, has a D-shaped annular seat-forming member and obturating flap, the flap having a major area formed by a rigid sheet of similar D-shape and extent for direct support on the seat when the valve is closed, and a flexible sheet hinge connecting the flap and annular member as a hinge along their straight edge portions. The rigid sheet is preferably scalloped around its free edge, with a flexible skirt being located across the incursions of this shaping, and is also preferably dished inwardly towards the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.