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Instrument for adjustment osteotomy of a lower extremity

  • US 5,911,724 A
  • Filed: 09/28/1997
  • Issued: 06/15/1999
  • Est. Priority Date: 05/26/1995
  • Status: Expired due to Fees
First Claim
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1. An instrument for performing an adjustment osteotomy of a lower extremity of a patient comprisinga securing frame (1);

  • first and second fixation elements (7,

         8) for attaching said frame to the skeleton of a lower extremity of a patient;

    first and second securing components (6,

         9) adjustably holding said first and second fixation elements, respectively, on said frame;

    a saw guide (25) mounted on said frame, said saw guide being adjustable to a plurality of angles relative to said frame;

    an angle-indicating scale plate (10) adjustably attached to one of said securing components;

    a rotation axis pin (12) penetrating said scale plate for pointing toward a location on said skeleton for intersection of bone cuts to be made therein; and

    an angle determining component (23) pivotable about said rotation axis pin and carrying said saw guide and two pointers (26,

         27) aligned with each other and alignable with a projection of a mechanical loading axis of the extremity of the patient, whereby adjustment of said pointers directly causes adjustment of said saw guide.

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