Shape memory shutter device
US7297132B2 · kind B2 · utility
55Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2005 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Jun 13, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0001
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A shape memory shutter device for controlling the rectum of a disabled person, comprises a section of conduit to be connected to the rectum of the disabled person, and a shutter which controls the passage through the conduit section and actuated by a shape memory actuator. The shutter comprises a plurality of petals positioned circumferentially around the conduit section and able to move between a closed and an open position. The actuator comprises shape memory wires associated to the petals which are supplied with electrical current to cause opening of the petals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.