Heart valves with increased effective orifice area
US11266499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2017 |
| Grant date | Mar 8, 2022 |
| Priority date | — |
| Expiry date | Jan 8, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2310/00389
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthetic heart valve for implant in a human. The valve includes a wireform with undulating inflow cusps and outflow commissure posts to which flexible leaflets attach and coapt in a flow area. Each leaflet may drape over the top of the wireform in the cusp area, but have tabs that each extend underneath the wireform at the commissure posts to be secured along with a tab of an adjacent leaflet. The prosthetic heart valve may also be a dual-wire wireform, with the leaflets sandwiched therebetween. One wireform may be larger than the other, with the leaflets extending over the smaller wireform. The smaller wireform may have commissures that bend radially outward from the larger wireform to provide structure to which the leaflet tabs attach.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.