Abstract: A moving device for moving a human thumb, in particular for moving the thumb between a resting position and a grasping position. A thumb bending section is adapted to at least partially move the thumb between a flexed position and an extended position. The thumb bending section has a gear unit for transforming a rotation of a rotation element, which is rotatably mounted to a housing, into an essentially linear movement between a translation element and the housing. The thumb bending section further has a first flexion spring mechanically connected to the translation element and adapted to be fixed with a first proximal end of the first flexion spring relative to a human thumb at a position in a proximal distance to the metacarpophalangeal joint or at a position between the metacarpophalangeal joint and the carpometacarpal joint.