Low-pressure fixation of valvular tissue intended for implantation
US4372743A · kind A · utility
70Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1981 |
| Grant date | Feb 8, 1983 |
| Priority date | — |
| Expiry date | Jun 22, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/2415
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of obtaining fixation of an animal aortic valve intended for implantation, including subjecting the aortic valve to a tanning fluid at a differential pressure across the valve leaflets in a direction to urge the valve leaflets closed and with the tanning fluid tending to distort the aortic valve. The differential pressure across the valve leaflets is greater than zero and less than about four mm Hg. An insert restrains the valve against substantial distortion during the time the valve is subjected to the tanning fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.