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System, device, and method for determining a position of an object

  • US 7,657,298 B2
  • Filed: 03/11/2004
  • Issued: 02/02/2010
  • Est. Priority Date: 03/11/2004
  • Status: Active Grant
First Claim
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1. A system for determining a position and a change in the position of an anatomical structure, comprising:

  • a surgical navigation system;

    a substrate including means for removably attaching the substrate to an outer surface of a body, wherein the body includes an anatomical structure;

    a sensor attached to the substrate that can be tracked by the surgical navigation system to determine a position of the sensor;

    a magnetic transmitter attached to the substrate;

    a magnetic sensor comprising means for attachment to the anatomical structure,wherein the magnetic transmitter and the magnetic sensor are utilized to determine a position of the anatomical structure relative to the sensor;

    a first circuit for calculating a global position of the anatomical structure by concatenating the position of the sensor and the position of the anatomical structure relative to the sensor; and

    a second circuit for displaying the global position of the anatomical structure on a display unit.

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