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Patient assist device

  • US 4,985,947 A
  • Filed: 05/14/1990
  • Issued: 01/22/1991
  • Est. Priority Date: 05/14/1990
  • Status: Expired due to Fees
First Claim
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1. A mobile machine for assisting a partially ambulatory user to walk or move about, said machine comprising:

  • frame means, comprising front and rear means, adapted to be disposed upon a supporting surface;

    yoke means associated with said frame means for selectively engaging the torso of said user;

    linkage means for dynamically coupling said yoke means to said frame means, said linkage means comprising top lever means for coupling said yoke means to a first pivot point defined upon said frame means;

    bottom lever means for coupling said yoke means to a second pivot point defined upon said frame means, said first pivot point being located above said second pivot point and being offset from said second pivot point towards said frame front means, and the length of said top lever means being less than the length of said bottom lever means; and

    ,motor means disposed upon said frame means for selectively moving said yoke means and consequently said user from a sitting position to a standing position.

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