Leaflet/cuff attachment compliance for improved durability
US11717402B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2021 |
| Grant date | Aug 8, 2023 |
| Priority date | — |
| Expiry date | Oct 14, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0048
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A prosthetic heart valve may include an expandable stent having a plurality of struts forming cells connected to one another in a plurality of annular rows around the stent, a cuff attached to an annulus section of the stent by cuff sutures that have a plurality of stitches extending through material of the cuff and looping around the struts, and a plurality of leaflets each having a belly attached to the cuff within an interior region of the stent. The leaflets may together have a coapted position occluding the interior region of the stent and an open position in which the interior region is not occluded. The belly of each leaflet may be attached to the cuff by leaflet sutures extending in a path that crosses some of the struts in overlap zones. Those struts may be devoid of the stitches within the overlap zones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.