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Target depth locators for trajectory guide for introducing an instrument

  • US 7,559,935 B2
  • Filed: 02/20/2003
  • Issued: 07/14/2009
  • Est. Priority Date: 02/20/2003
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a mounting base, configured to be locally secured relative to an entry portal in a surface;

    a trajectory guide assembly, adjustably coupled to the mounting base, the trajectory guide assembly including at least one adjustably orientable instrument guide structure to establish a trajectory for an instrument to be introduced through the entry portal in the surface;

    first and second imagable locators, coupled to the trajectory guide assembly at respective different first and second positions that are located away from the trajectory, the first and second imagable locators defining a first line therebetween that intersects the trajectory; and

    wherein the first and second imagable locators are each adjustably coupled to the trajectory guide assembly such that each of the first and second imagable locators are moveable to adjust the first line to substantially orthogonally intersect the trajectory at different points along the trajectory.

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