Bi-leaflet heart valve
US4863459A · kind A · utility
Inventor
Key dates
| Filing date | Jan 6, 1988 |
| Grant date | Sep 5, 1989 |
| Priority date | — |
| Expiry date | Jan 6, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/2409
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a heart valve prosthesis having an annular valve body defining a central passageway for blood flow. A pair of curved, convex-concave leaflet occluders pivotally mounted in the valve body and movable between open and closed positions have opposed lateral edges disposed between a mating edge and an arcuate edge. The mating edges of the leaflets engage each other when the valve is closed, with the arcuate edges engaging a preferably frustoconical section of the valve body. A pair of protuberances extend from the valve body to pivotally mount each lateral edge of each leaflet. Each pair of protuberances receives a lateral edge of a leaflet therebetween. The leaflets include a swelled area having a concave lower surface for receiving one protuberance and an upper convex surface for engaging the other protuberance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.