Leaflet positioning for a mechanical heart valve
US6176876A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1998 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Dec 4, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/2472
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A bi-leaflet prosthetic heart valve, comprising an annular body having an upstream edge, a downstream edge and a passageway therebetween includes first and second leaflets pivotally mounted in the annular body. Each leaflet has an upstream edge, a downstream edge and a leaflet length therebetween. First and second pivot axes associated respectively with the first and second leaflets are provided and each leaflet rotates about its respective pivot axes between an open position allowing blood flow through the passageway of the annular body and a closed position blocking blood flow. The valve is configured such that the leaflets have an angle in the naturally open position of more than about 85.degree..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.