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Stereotactic localizer system with dental impression

  • US 20040015176A1
  • Filed: 02/21/2003
  • Published: 01/22/2004
  • Est. Priority Date: 06/20/1994
  • Status: Abandoned Application
First Claim
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1. A dental-based localizer for non-invasively indexing computer tomographic (CT) slice images of the anatomy of a patient, the localizer defining x, y and z-axes, whereby upon positioning of the localizer with respect to a head of the patient, the z-axis is in general parallel relation to the axis of the body, the localizer comprising:

  • a discrete independent reference structure which is solely supported by the patient, the reference structure including;

    a dental piece configured and adapted to be received in the mouth of the patient;

    a base plate attached to the dental piece, the base plate having a single monolithic element defining a general arcuate configuration, the arcuate configuration having a first portion including a first end and a second portion including a second end, wherein the first portion and the second portion of the base plate extend an approximately equal distance from the dental piece and terminate in the first end and the second end, respectively, the first end and the second end being positioned approximately adjacent the opposed posterior regions of the teeth of the patient, the dental piece providing a fixed reference point for the base plate relative to the patient, the dental piece and the base plate being configured and adapted for use on the patient without an external support structure attached thereto; and

    a plurality of elongated graphic reference elements connected to the base plate and being disposed in at least two planes, the graphic reference elements and base plate being configured to accommodate the positioning of the patient in a supine position on a treatment table such that the occipital region of the head of the patient is directly positionable on the treatment table.

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