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Method and apparatus for prosthetic limb rotation control

  • US 7,922,773 B1
  • Filed: 05/15/2009
  • Issued: 04/12/2011
  • Est. Priority Date: 05/16/2008
  • Status: Active Grant
First Claim
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1. A prosthetic limb for instantaneously converting residual bone rotation into rotation of a portion of the prosthetic limb comprising:

  • a permanent magnet having a magnetic field for mounting adjacent to the distal end of the residual bone;

    a plurality of magnetic sensors disposed about the magnet for generating data indicative of changes in the magnetic field produced by rotation of the residual bone and magnet;

    a motor driven prosthetic rotator for rotating the limb portion, anda microprocessor programmed to analyze the data indicative of the changes in the magnetic field and to control the prosthetic rotator in response to the data to thereby convert the residual bone rotation into rotation of the limb portion.

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