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Method and apparatus for switching degrees of freedom in a prosthetic limb

  • US 5,336,269 A
  • Filed: 06/09/1992
  • Issued: 08/09/1994
  • Est. Priority Date: 06/09/1992
  • Status: Expired due to Fees
First Claim
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1. A method for switching amongst a plurality of degrees of freedom of a prosthesis comprising the steps of;

  • (1) storing a pattern representing myoelectric signals of a muscle corresponding to a predesignated muscle contraction, said pattern comprising a first plurality of data points, each data point being representative of an instantaneous amplitude of said myoelectric signals at an instant in time,(2) obtaining a second plurality of data points, each of said second plurality of data points being representative of the instantaneous amplitude of myoelectric signals of said muscle in real time,(3) comparing said second set of data points with said first set of data points, and(4) switching amongst said degrees of freedom if said real time myoelectric signals are similar to said stored pattern within a predetermined limit.

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