(1) for improving a user catches an equipment (100) for function to be configured to including one with same bracket (102), is tightly suitble to about (1) part of a user of main body (3) At least one hinged gripping element (130) with multiple phalanxes: (133) of (132) and distal end that are hinged by articular cartilage (135) are reconciled in (131) for the proximal end being fixed on bracket (102) One motor unit (120) is fixed on bracket (102) One winding drum machine (125) It is partially positioned in drum(125)On at least one tendon(140)With along phalanx(131,132,133)And connector(135)Extend,Setting is by from drum(125)Draw it,Phalanx(131,132,133)Around respective articular cartilage(135)It rotates and moves from an extended position(a)To clamping bow-shaped position(B)Hinged gripping element(130)This mode in,Lead to hinged gripping element(130)A flexion/extension movement,Connector(135)Configuration,Therefore by from drum(125)Discharge tendon(140),Phalanx(131,132,133)It is connect around each item(135)It rotates and in clamping bow-shaped position(B)And extended position(a)Between mobile hinged gripping element(130).