Motion-based power assist system for wheelchairs
US11813209B2 · kind B2 · utility
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87References
20Claims
0Family size
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Key dates
| Filing date | Jun 8, 2021 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Aug 6, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/36
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A motion-based push activation power assist system for manual wheelchairs. The system uses motion-based measurements to determine when the user applies a push to the wheelchair handrims and brakes with the handrims. The push recognition activates a drive system that provides an assistive driving force-pulse to the wheelchair to reduce the demand on the user during propulsion. The brake recognition deactivates the power assist. The provided power assist is proportional to the sensed push and can be modulated to different proportional settings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.