Hand control system
US4558704A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1983 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Dec 15, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/704
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for stimulating a grasping action by a paralyzed hand. The system includes a sensor arrangement for detecting movement of a shoulder by the paralyzed person. The sensor transmits shoulder movement signals to a computerized controller which generates stimulation signals for stimulation electrodes mounted within a cuff worn about the forearm which supports the hand to be stimulated. Closed loop control is accomplished by use of a glove to which are attached a length sensor and a pressure sensor connected for alternative selection. Stimulation of deeply buried muscles is accomplished by arranging the stimulation electrodes into side-by-side electrode sets which are so positioned as to produce focusing of stimulation energy at the location of the subject muscle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.