Artificial sphincter with magnetic control
US6409656B1 · kind B1 · utility
Inventors
Key dates
| Filing date | May 8, 2000 |
| Grant date | Jun 25, 2002 |
| Priority date | — |
| Expiry date | May 8, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/0036
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to an artificial sphincter provided with a valve implanted permanently on a duct or an organ, whether biological or not, during a surgical operation and which can then be easily activated from outside the human body by the patient and also easily adjusted from outside the human body during a postoperative session by a doctor. The valve (17) of the artificial sphincter comprises a rigid and airtight housing (1, 3, 16), provided with a support conduit (11) receiving the duct (2), and a strap (4) compressing this duct against a wall of the conduit, this strap being kept tight by a spring mechanism (12) which presses a lower disk (6) bearing a first magnet (9), the whole assembly being mobile in axial translation in the housing. It also comprises an upper disk (14) screwed in the housing, forming an axial stop for the first magnet and bearing a second magnet (15). A permanent magnet (18) outside the human body makes it possible to activate the first magnet (9) to loosen the strap (4) and open said duct (2). A rotating electromagnet (27) outside the human body makes it possible to make the second magnet (15) and the upper disk (14) rotate to adjust the tens…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.