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Electronically controlled prosthetic system

  • US 7,029,500 B2
  • Filed: 04/09/2003
  • Issued: 04/18/2006
  • Est. Priority Date: 04/12/2002
  • Status: Expired due to Fees
First Claim
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1. A prosthetic ankle joint system for users comprising:

  • a housing having an interior cavity, a center axis in said interior cavity, and an attachment means for fixedly connecting said housing to said user;

    an inner cylinder disposed in said housing interior cavity wherein said inner cylinder rotates around said center axis of said housing;

    a keel attached to said inner cylinder;

    a sensor system located in said interior cavity of said housing having an angle sensor for determining said inner cylinder rotation amount respective to said housing;

    a dampening system in communication with said sensor system,said inner cylinder, and said housing for controlling dampening of the rotation ofsaid inner cylinder around said center axis of said housing, comprising;

    a microprocessor for processing said communication between said sensor system, said inner cylinder, said housing, and wherein said dampening of the rotation is programably adjustable;

    MR fluid in communication with said housing, said inner cylinder, and said microprocessor for electronically controlling said dampening of rotation; and

    a power source for operating said microprocessor.

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