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System for indicating the position of a surgical probe within a head on an image of the head

  • US 5,871,445 A
  • Filed: 09/07/1995
  • Issued: 02/16/1999
  • Est. Priority Date: 04/26/1993
  • Status: Expired due to Term
First Claim
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1. A system for providing a display of images from at least two different scanning technologies, the display showing a particular position within a body of a patient, said system comprising:

  • reference points means having a position in fixed relation to the body for providing reference points;

    means for generating images of the body from each different scanning technology, said images including reference images corresponding to the reference points means;

    reference means having a location outside the body for providing a reference;

    a surgical probe including a tip adapted to be located at the particular position;

    first means for determining the position of the tip of the surgical probe relative to the reference means;

    second means for determining the position of the reference points means of the body relative to the reference means so that the position of the tip relative to the reference points means of the body is a known position;

    means for translating the known position of the tip of the surgical probe to provide a translated position within a coordinate system corresponding to the images of the body from each different scanning technology; and

    means for displaying a plurality of images of the body produced from the different scanning technologies to provide displayed images which correspond to the translated position of the tip of the probe in the body.

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