| 摘要 |
A hand and lower arm prosthesis is provided for amputees who have the amputation stump of the lower arm muscularly connected to the upper arm, the prosthesis including a lateral thumb pinch utilizing a key grip with spring closure force connected to the upper arm elbow and in combination connected to the opposite shoulder to translate force of humeral flexion electively, alternately or in combination, with pronation and supination to the thumb pinch.
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