Cardiac valvular prosthesis with rheodynamic disc
US4425670A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1981 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Jul 15, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7903
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac valvular prosthesis comprising an occluder disc, a supporting ring pivotally supporting said disc, and a suturing ring arranged on an outer portion of said supporting ring and adapted to facilitate suturing to the annulus of a cardiac valve to be replaced, said occluder disc having a hydrodynamic shape, an eccentrically positioned rotational axis far from the obturation plane of the disc, and hinges located in the central area of said disc, said occluder disc being pivotable between an open position disposed at an angle which is 90.degree. with respect to the supporting ring and a closed position wherein said disc is disposed at an angle of approximately 15.degree. with respect to said supporting ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.