Prosthetic heart valve
US5123920A · kind A · utility
13Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1990 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Sep 19, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/2403
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bi-leaflet heart valve having an improved hinge arrangement that allows the valve to respond quickly to flow reversals and minimizes fluttering of the leaflets in the open position. A pair of leaflets are slidably and pivotally mounted in a heart valve body for movement between closed and open positions. Notches in the leaflets matingly engage complementary surfaces on pivot projections extending inward from the valve body sidewall. Downstream stops interengage with complementary surfaces on the leaflets to cushion the final opening movement and reduce wear in critical locations to improve operating characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.