Artificial hand, comprises elastic element and unit for being locked in required position

摘要

The hand (100) has a base (101) to be moved around a longitudinal (5) as well as around a transversal axle (4). A joint unit (10) is attached to the base (101) with a mounting plate (1) and a housing (200) is used for connecting the artificial hand (100) to a stump or a prosthesis of the lower arm. When a soft button (6) located laterally at the joint unit (10) is pressed the base (101) can be locked in a particular position as required. The locking unit comprises a torsion spring pushing with gradually increasing forces in order to counteract an over-stretching.