Control system for a lower limb prosthesis or orthosis
US8366788B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2005 |
| Grant date | Feb 5, 2013 |
| Priority date | — |
| Expiry date | Apr 23, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/70
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a control system for a lower limb prosthesis or orthosis, a plurality of sensors generate sensor signals representing kinematic measurements (21) relating to the movement of segments of a prosthesis or orthosis (e.g. a thigh segment and a shank segment). The sensor signals are applied in a comparison stage 22 to a plurality of comparison steps (K1, K2, K3) which produce binary outputs for feeding to a combining stage (23) in which a binary word (16) is produced, identifying a phase of limb motion. During a walking cycle, for instance, the binary word (16) changes, and the sequence of words represents a movement phase description which is used as the input for a prosthetic or orthotic movement controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.