Motion assistance system for wheelchairs
US9615982B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 19, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Aug 19, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2203/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The presently disclosure describes a motion assistance system for a wheelchair, for example, a powered drive wheel system that can continually drive a wheelchair in a circular or elliptical path. The motion assistance system comprises a mounting mechanism attachable to one or more structural elements of the wheelchair, and a drive linkage pivotable with respect to the mounting mechanism. A drive wheel can be mounted to an end of the drive linkage such that the drive wheel contacts the ground when installed on the wheelchair. The drive wheel comprises a plurality of lateral rollers positioned radially about the circumference of the power drive wheel. The lateral rollers can rotate about an axis tangential to the circumference of the drive wheel in order to facilitate driving the wheelchair in a radial direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.