| CPC B25J 15/10 (2013.01) [A61F 2/586 (2013.01); A61F 2002/587 (2013.01); A61F 2002/704 (2013.01); A61F 2002/7625 (2013.01)] | 18 Claims |
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1. A mechanical hand comprising:
a plurality of finger assemblies each selectively moveable by a respective finger drive assembly about a finger pivot axis along a finger flexion/extension plane and between a finger open position and a finger closed position;
a thumb assembly selectively rotatable by a first thumb drive assembly about a first thumb axis between an opposed position and a non-opposed position with respect to the finger assemblies, and selectively moveable by a second thumb drive assembly about a second thumb axis along a thumb flexion/extension plane and between a thumb open position and a thumb closed position;
a controller operatively coupled to the finger and thumb drive assemblies; and
a selector operatively coupled to the controller for selecting a desired thumb rotational position or a desired grip to be defined by the finger assemblies and the thumb assembly,
wherein:
the selector comprises at least one switch or sensor configured to send an input signal to the controller responsive to a forced movement of the thumb assembly by a user;
the thumb assembly is selectively moveable about a third thumb axis; and
the thumb assembly is mounted on a thumb rocker member coupled to the first thumb drive assembly and rotatable about the third thumb axis.
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