Walking assist device
US9216131B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2009 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Sep 19, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2205/102
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
To provide a walking assist device which can apply torque to a knee joint at a suitable timing. A walking assist device includes an actuator, a reaction force sensor and an angle sensor. The walking assist device is fitted to a user's leg. The actuator is able to apply torque to a knee joint of one leg of the user. The reaction force sensor detects a reaction force that the foot of the one leg receives from the floor. The angle sensor detects a hip joint angle of the one leg around a pitch axis. The walking assist device specifies a timing to start applying the torque to the knee joint in a direction that swings the lower leg backward, based on the detected reaction force and the detected hip joint angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.