Artificial sphincter
US4118805A · kind A · utility
294Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Feb 28, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/25
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An improved artificial sphincter for occluding a duct. The basic sphincter includes means to increase the occlusive force about the duct and means to control the increase of such occlusive force. To protect the duct from excessive or damaging occlusion the basic sphincter is improved by including means for preventing increase of the occlusive force about the duct beyond a predetermined position. An additional improvement includes means for adjusting the occlusive means after the sphincter has been implanted in a human or animal body to account for variations in fit about different ducts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.