Lever-actuated device for external prosthesis
US9198779B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2012 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Feb 24, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/805
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A lever-actuated distal lock connects a limb liner to a prosthetic leg or arm hard socket. In some versions, air-sealing capability may limit/prevent air flow through the distal lock, even with vacuum inside the socket. To unlatch the lock, a lever is swung to pull a sliding shaft outward in the lock housing. Swung in the opposite direction, the lever releases the sliding shaft to be biased to a latched position wherein slanted surfaces of the shaft inner end and a liner pin cooperate to allow the pin to slide down into, but not up out of, the lock. In some versions, the shaft inner end slides relative to, but is biased away from, the shaft opposite end, so that the inner end moves out of the way of the downwardly-sliding pin, without moving the entire lock shaft and without disrupting the optional air seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.