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Apparatus for neurosurgical stereotactic procedures

  • US 5,695,501 A
  • Filed: 09/30/1994
  • Issued: 12/09/1997
  • Est. Priority Date: 09/30/1994
  • Status: Expired due to Term
First Claim
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1. A stereotactic system comprising:

  • an imaging display system for displaying images;

    an image fiducial selector coupled to said imaging system for selecting fiducials on an image displayed on said display system;

    a target selector coupled to said imaging system for selecting a target on an image displayed on said display system;

    an articulated arm terminating with a probe and coupled to said imaging system, said articulated arm providing spatial coordinates for said probe with reference to said imaging system so that a position associated with said probe is displayed on said displayed image;

    a patient fiducial selector coupled to said imaging system and said articulated arm for selecting fiducials on a patient that correspond to said fiducials selected by said image fiducial selector;

    a coregistration processor for coregistering said selected patient fiducials to said selected image fiducials so that said coordinates provided by said articulated arm may be matched to said displayed images whereby a path from said displayed probe position to said selected target may be displayed on said displayed image; and

    a holder separate from the articulated arm and located at a desired position in proximity to a patient, said holder supporting said probe and being pivotable at said desired position with respect to said patient to allow a surgeon to evaluate and establish a desired path as displayed on said displayed image between said desired position and said selected target, said holder being lockable to fix said holder supporting said probe at a desired orientation directing said probe along said desired path, and thereafter, upon removing said probe, said holder adapted to receive an instrument, said holder providing independent of said imaging system, support and guidance for said instrument so that said instrument follows said desired path.

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