Patent ID: 7867287

Claim:
A hand prosthesis comprising: a chassis including an inner palmar surface; a plurality of finger prostheses articulated or elastically coupled to the chassis; a single motorized drive coupled to the plurality of finger prostheses, the drive configured to rotate in a first direction and a second direction to articulate each of the plurality of finger prostheses about a swiveling axis relative to the chassis from a rest position toward the inner palmar surface; and a plurality of force transmission units, each unit coupling one of the plurality of finger prostheses to the motorized drive, wherein upon rotation of the motorized drive in the first direction at least two of the plurality of finger prostheses articulate about the swiveling axis to a first gripping position defined by a first adjustment angle of each articulated finger; and wherein upon rotation of the motorized drive in a second direction the at least two finger prostheses articulate about the swiveling axis to a second gripping position defined by a second and different adjustment angle of each articulated finger.