US Patent 8100986 Prosthetic finger

The invention relates to a prosthetic finger (1) with a proximal member (10), a medial member (20) and a distal member (30) that are mounted pivotably on one another, and with a motor (40) which is arranged in the prosthetic finger (1) and which, via a gear mechanism, rotates the medial member (20) relative to the proximal member (10), said medial member (20) accommodating a longitudinally movable balance arm (90) which is connected via levers (91, 93) to the proximal member (10) and to the distal member (30).