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).一種義手指(1),具有一近體節(10)、一中節(20)、及一遠體節(30),這些指節支承成可互相作樞轉的形式,並有一個設在義手指(1)中的馬達(40),該馬達可經由一聯動裝置使中節(20)相對於該近乎節(10)轉動,其中在中節(20)中設有一可縱向運動的天平樑(90),該天平樑(90)經由槓桿(91)(93)與該近體節(10)及遠體節(30)連接。(圖1)