Passive anatomic ankle-foot exerciser
US5203321A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1991 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Sep 23, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H1/0266
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A continuous motion passive anatomic ankle-foot exerciser for rehabilitating ankle and foot injuries is provided. The ankle-foot exerciser is constructed to move a patient's foot through a range of motion which may include pure ankle joint motion, pure subtalar joint motion, or a combination of both. The ankle-foot exerciser includes a base, a foot holder, a drive motor for moving the foot holder in an up/down in/out motion, and a foot tilting device for continuously tilting the foot in an inversion/eversion motion. Movement of the foot holder is controlled by an initial positioning of the drive motor and by a control circuit that coordinates the up/down in/out and tilting motions of the foot holder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.