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Instrumented evaluation of myoelectric control in a bilateral percutaneous hand grasp neuroprosthesis for spinal cord injured persons with tetraplegia
| Content Provider | Semantic Scholar |
|---|---|
| Author | Heasman, J. M. Vare, V. Middleton, Jw Gschwind, Charles R. Rutkowski, Sb |
| Copyright Year | 2000 |
| Abstract | I. Abstract Stimulation was applied to both right and left hands to create simultaneous handgrasps using intramuscular percutaneous electrodes. It was controlled by myoelectric signals detected from both right and left sternocleidomastoid muscles in two persons with tetraplegia. The controller detected three levels of activation of the muscle: none, low and high; with the resulting hand movements being: no movement, close, and open respectively. Measurement of the effectiveness of this control method was made using grasp force and position sensors, which were applied to both hands simultaneously, with the output fed to a computer. In addition, visual feedback of hand position and force was provided. Tracking tasks were set up requiring the subjects to move their stimulated hands to predetermined levels of force and position. The sensitivity to the controller parameters in completion of these tracking tasks was measured in one of the two subjects. For proper adjustment of the controller parameters, the times with which the subjects could complete the precision tracking task suggested that errors resulting from the operator and the system were not sufficient to disrupt adequate control of the hands using bilateral sternocleidomastoids. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ifess.org/proceedings/IFESS1997/IFESS1997_070_Scott.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
