Magnetic system for use in sealing body openings
US4258705A · kind A · utility
114Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1978 |
| Grant date | Mar 31, 1981 |
| Priority date | — |
| Expiry date | Sep 15, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/0018
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A magnet system for sealing devices for artificial or natural intestinal or similar ducts, comprising a ring-magnet to implant in the tissue around the duct and a rod-shaped center magnet member mounted in a more or less soft sealing member to be in sealing contact with the walls of the duct. The improvement is that the center magnet member comprises at least two, in practice usually two or three, axial aligned individual magnets acting together so as to resist axial displacement; the individual poles are positioned to resist tilting of the center magnet member relative the axis of the duct and the ring-shaped magnet member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.