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Stereotactic surgery apparatus and method

  • US 4,341,220 A
  • Filed: 04/13/1979
  • Issued: 07/27/1982
  • Est. Priority Date: 04/13/1979
  • Status: Expired due to Term
First Claim
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1. Stereotactic frame apparatus adapted for use in performing stereotactic surgery with an X-ray CT scanner, said stereotactic frame apparatus comprising:

  • a stereotactic frame defining a three-dimensional coordinate system which can be fixed with respect to the anatomy of a living patient,said stereotactic frame including mechanism for positioning a desired surgical device within said anatomy at any desired location defined in terms of said three-dimensional coordinate system, andX-ray detectable fiducial marker means associated with said stereotactic frame defining at least three non-collinear points within each planar cross-section therethrough, said marker means including means for determining the three-dimensional coordinates of said three points in each said cross-section whereby a scan in any single plane provides the three-dimensional coordinates of said three noncollinear points.

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