Prostheses with mechanically operable digit members

摘要

A prosthesis (1) for providing at least one mechanically operable digit member. The prosthesis (1) has at least one digit member (3) extending generally tangentially with respect to a fixed worm gear wheel means (5) on a support member of the prosthesis and mounted for rotation about the worm gear wheel means axis (8). The digit member has a drive motor (7) operable to drive a worm means (13). The worm means (13) is in engagement with the worm gear wheel means (5) so that when the drive motor is operated, in use of the prosthesis, the digit member (3) moves around the worm gear wheel means (5), in which the worm means (13) is disposed outwith the digit member (3).

主权项

1. A prosthesis for providing a mechanically operable digit, the prosthesis comprising:
a worm gear wheel mounted to a support member of the prosthesis, the worm gear wheel being adjacent to the digit; the mechanically operable digit comprising a drive motor within a motor housing, the digit being mounted for rotation about the worm gear wheel; and a worm gear operatively coupled to the drive motor and in engagement with the worm gear wheel so that when the drive motor is operated, in use of the prosthesis, the digit rotates around the worm gear wheel and rotates in relation to the support member, wherein the worm gear is disposed outside the motor housing; and a transmission configured to couple the drive motor to the worm, wherein an axis of rotation of the worm gear is oriented at 90° to an axis of rotation of the drive motor.