A motor-driven adjustable prosthetic socket operated using a mobile phone app: A technical note.

摘要: Abstract Sockets that allow incremental size adjustment during ambulation may help prosthesis users improve management of their changes in limb volume and the quality prosthetic fit. A platform system was developed allowed people with trans-tibial loss to adjust radial positions socket panels small increments via a motor mounted beneath socket. The altered length cable running through according commands communicated from mobile phone. proportional–integral–derivative controller adjusted voltage applied pulse-width modulation achieve target settings. Bench test results showed when subjected loads comparable those expected clinical use, maximum absolute steady state error 0.036 mm. Treadmill testing on 16 amputation demonstrated range lengths over which participants deemed fit clinically acceptable varied between 24 mm 114 mm depending user. In field 11 13 were comfortable making adjustments while walking. achieves appropriate for research development ambulatory adjustable sockets.