| 摘要 |
The present invention consists of a mechanical hand resembling the appearance and function of a human hand. The hand can be used for upper-limb amputees, and is able to fit wrist disarticulation, trans-radial and trans- humeral amputees. The hand includes an articulating thumb having a hinge at the carpo-metacarpal, metacarpophalangeal and distal interphalangeal joints. Similarly the hand has four articulating fingers, each having a knuckle-shaped hinge at both the metacarpophalangeal and proximal inter-phalangeal joints. Each finger has the option of being actuated. The wrist has an actuator connected to it which articulates the wrist in an up / down movement. Further aspect of the present invention comprises a mechanical finger resembling the appearance and function of a human finger. The finger is able to have the metacarpal and proximal joints actuated. The metacarpal joints are able to be deviated sideways; the elasticity of the skin returns the fingers to the straight position after deviation. This feature significantly increases the longevity of the fingers. The design is scaleable from large male to child sizes. The design is strong, light and efficient to produce making it very competitive for the upper-limb amputee market. |
