Device at a hand prosthesis
First Claim
1. An arrangement for a hand prosthesis, which hand prosthesis is adapted to replace a lost human hand on a human or artificial lower arm and comprises on the one hand a wrist part and on the other hand an arm part, the arrangement being situated between the wrist part and the lower arm, wherein the arrangement has means to permit tilting and turning of the wrist part relative to the lower arm.
1 Assignment
0 Petitions
Accused Products
Abstract
Arrangement (1) for a hand prosthesis (2), which hand prosthesis (2) is adapted to replace a lost human hand on a human or artificial lower arm (3). The arrangement (1) is mounted between a wrist part (2a) and a lower arm (3). In addition the arrangement (1) has means for effecting tilting or turning of the hand part (2) relative to the lower arm (3).
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Citations
9 Claims
- 1. An arrangement for a hand prosthesis, which hand prosthesis is adapted to replace a lost human hand on a human or artificial lower arm and comprises on the one hand a wrist part and on the other hand an arm part, the arrangement being situated between the wrist part and the lower arm, wherein the arrangement has means to permit tilting and turning of the wrist part relative to the lower arm.
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9. A method of effecting a movement between a wrist part and an arm part, comprising:
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arranging on the wrist part two controllable motors adapted to drive two coaxial shafts aligned therewith, arranging on each shaft a gear in a gear-type engagement with an arm cavity connected to an arm shaft, mounting the arm shaft in the arm part, and controlling the motors such that the gears can rotate relative to the wrist part in the same direction in order to tilt the wrist part and/or so that the gears can rotate relative to the wrist part in different directions so as to turn the wrist part relative to the arm part.
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Specification