Wheelchair system with motion sensors and neural stimulation
US11419772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2018 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | May 31, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/0504
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system and method for improving stability of a wheelchair user includes a wheelchair having sensors measuring motion parameters to sense collisions and sharp turns which may unseat the user. Neuromuscular stimulating electrodes attached to extensor and flexor muscles of the user's trunk and under the command of a controller in communication with the sensors activate the muscles during turns and collisions to counteract the forces induced. A system and method for increasing manual propulsion efficiency includes sensors for sensing motion parameters indicating completion of a manual push of the wheelchair wheels and recovery from the push. Neuromuscular stimulating electrodes attached to extensor and flexor muscles of the user's trunk and under the command of a controller in communication with the sensors activate the muscles at the appropriate time in the cycle of push and recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.