Optimizing Body Thickness of Watchband-Type Soft Pneumatic Actuator for Feedback of Prosthesis Grasping Force
Watchband-type soft pneumatic actuators were prototyped and tested by motion experiments. The actuators are soft device which is made from thermoplastic copolyester (TPC) by 3D printer. The actuator is for a device for feedback of prosthesis grasping force. The feedback device resembles a watch, and the parts corresponding to the watch wristband are actuators shaped like a thumb and index finger. The actuator of finger-type bands can press an intact wrist of amputees who use a prosthesis by wrapping around the wrist in accordance with the grasping motion of the prosthesis hand. In experiments, actuator’s various configurations using different combination of thickness of the body were compared by measuring output forces and range of motion (ROM). As a result of the comparison, the optimal configuration which improve the force and ROM was found.
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