Stented bioprosthetic heart valve
US6350282B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1995 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Dec 11, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A supported bioprosthetic heart valve is provided. The valve includes a stent and a bilogical valve member. The stent has an annular frame defined by a support rail. The support rail is formed to define a triad of axially-projecting circumferentially-spaced commissure posts, each post having an inverted U-shaped configuration and a pair of legs. Each of the pair of legs has an upper end and a lower end. The lower end of each leg merges smoothly with the lower end of a leg of an adjacent commissure post. A sleeve having an inflow end and an outflow end is fitted around the annular frame. The biological valve member is defined by a tubular wall and three leaflets, the three leaflets being attached to the tubular wall and axially converging along three commissures. The biological valve member has a shape which fits the contour of the support rail and is disposed under the support rail. The biological valve member is sutured to the support rail and the outflow end of the sleeve. The bioprosthetic valve member also includes a suturing cuff which is not rigidly attached to the support rail allowing the valve to expand and contract in the lateral direction. The suturing cuff is formed by …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.