Systems and methods for fine motor control of the fingers on a prosthetic hand to emulate a natural stroke
US11759337B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2020 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/701
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention generally relates to a system and method for fine motor control of fingers on a prosthetic hand. In particular, the present disclosure describes a system and method for controlling the flexion or extension of one or more fingers of a prosthetic hand to reproduce a natural stroke such as for, e.g., writing, painting, brushing teeth, or eating. The systems and methods described herein use electromyographic (EMG) signals and, more particularly, combinations of electromyographic signals, from muscles in the forearm to activate one or more motors of the prosthetic hand that control the motion of the prosthetic fingers. The electromyographic signals may be used to cause fingers of a prosthetic hand to, for example, imitate a writing stroke while the fingers of the prosthetic hand hold a writing utensil. Additionally, the present invention describes electrode placement locations that maximize peak signal detected while maintaining a low base-line signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.