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Tool position indicator

  • US 7,302,288 B1
  • Filed: 11/25/1996
  • Issued: 11/27/2007
  • Est. Priority Date: 11/25/1996
  • Status: Expired due to Fees
First Claim
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1. An apparatus for guiding the movement of a surgical toot in relation to the anatomy of a patient, the apparatus comprising:

  • a surgical tool;

    a display remote from the tool for displaying a diagnostic image of the anatomy;

    a means for superimposing at least one of a proposed target and a proposed trajectory indicative of a desired position of the tool on the display;

    means for determining an actual position of the tool;

    means for determining a difference between the actual position of the tool and the desired position of the tool; and

    ,indicating means different from the remote display and mounted on the tool for indicating to a human the difference between the actual and desired positions of the tool, the indicating means having an indicator reference frame different from the remote display frame of reference, the difference being indicated with respect to the indicator reference frame.

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