Patent ID: 8343234
Filing Date: 2013-01-01
Classification: A61F

Abstract:
1. A hand prosthesis comprising: a chassis; a finger prosthesis articulated to the chassis; a first drive located in the chassis and coupled to the finger prosthesis, the first drive moving the finger prosthesis about a first swiveling axis relative to the chassis; a force transmission unit located in the chassis coupling the finger prosthesis to the first drive; and a second drive located within the finger prosthesis such that the second drive moves with the finger prosthesis when the first drive moves the finger prosthesis about the first swiveling axis, the second drive coupled via a gear mechanism to an output device, the output device including a worm element positioned to mesh with a gearwheel segment to form a worm gear mechanism, the second drive moving a portion of the finger prosthesis in which the second drive is located about a second swiveling axis that does not intersect with the first swiveling axis.