| 摘要 |
The present invention provides an articular endoskeletal prosthesis (1) for providing a user with at least one of a mechanically operable pivoting wrist, elbow and shoulder joint. The prosthesis (1) has at least on e elongate endoskeletal tube upper limb member (5) with a proximal end portion (6) having a pivotal connection (7) to a support body ( 9) therefor. One of said upper limb member proximal end portion (6) and said support body (9) has a fixed worm gear wheel means (19) and the other a drive motor (22) having a drive output worm (25) extending generally tangentially of said worm gear wheel means (19) for engagement with the gear teeth of said worm gear wheel means (19) so that when said drive motor (22) is operated, in use of the prosthesis (1), said upper limb member (5) moves around said worm gear wheel means (19) so as to pivot said upper limb member about its pivotal connection (7).
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