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Method and apparatus for guiding an external needle to an implantable device

  • US 8,483,802 B2
  • Filed: 03/11/2011
  • Issued: 07/09/2013
  • Est. Priority Date: 03/25/2010
  • Status: Active Grant
First Claim
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1. A system comprising:

  • an implantable device having a port and a localizer configured to generate a navigation field, the port including an insertion axis;

    an instrument including a tracking device configured to sense the navigation field;

    a display device; and

    a processor system operable with the tracking device and the display device and configured to determine a real-time location of the instrument relative to the port and a trajectory of the instrument relative to the insertion axis of the port;

    wherein the processor system is configured to cause the display device to graphically render the instrument in the form of a plurality of two or three-dimensional rings positioned around an axis coincident with the determined trajectory and in an axially spaced apart relation to each other along the axis, and wherein a first ring of the plurality of rings is positioned at the determined location of the instrument relative to a graphical representation of the location of the port.

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