Prosthetic heart valve
US5116367A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 10, 1989 |
| Grant date | May 26, 1992 |
| Priority date | — |
| Expiry date | Oct 10, 2009 |
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, in combination with the disclosed curved surfaces of the leaflets, allows the valve to respond more quickly to flow reversal and minimizes fluttering of the leaflets in the open position. The leaflets are slidably and pivotally mounted in a heart valve body for movement between closed and open positions. The leaflets have notches which matingly engage complementary surfaces on pivot projections extending inward from the valve body sidewall. The shape and relationship of these complementary surfaces and the two-dimensional curvature of the leaflets provides for improved operating characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.