Permanent magnet device for implantation
US4197840A · kind A · utility
411Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1976 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Sep 29, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2210/009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A permanent magnet device for implantation in the eyelids including at least two magnet bodies enclosed in substantially shape-dependent manner by an enveloping body consisting of a ductile, tissue-compatible material, the enveloping body being substantially gastight and having at least one constriction in the radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.