Partial hand amputation may leave a significant functional limitations for amputee that are difficult to ameliorate by either orthoses or prostheses. Many kinds of devices have been tried to promote the function and cosmesis. Cosmetic hand was the best answer to the person with first and second metacarpophalangeal joint disarticulation and the strength and range of motion of remaining three fingers were not in optimal status till now. We applied a new device of wrist driven prehension prosthesis consist of forearm stabilizer, short opponens, actuator rod, artificial thumb, artificial index and attached 2 rings was designed and fabricated. As a result, it is possible to provide considerable improvement in function and cosmesis with this new device.
