The invention relates to a prosthetic grip unit (1) having a base body (2) on which connection means (3) are disposed for fastening said grip unit to an upper extremity, at least two extensions (10, 20) protruding from said connection means, a first extension (10) being movable relative to the second extension (20) from a protruding position into a flush position, wherein the pivot axis (14) has a perpendicular orientation to the base body (2) and the first extension (10) is motor driven.一種義肢握持單元(1)，具有一本體(2)，在本體(2)上設一接頭手段(3)以固定在一上肢上，至少有二懸臂(10)(20)從該接頭手段突出，其中一第一懸臂(10)支承成可相對於第二懸臂(20)運動，從一突出的位置移位到一倚靠的位置，且該可動懸臂的樞動軸(14)垂直於該本體對準，其特徵在：該第一懸臂(10)用馬達驅動。
