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BONE TRACKING WITH A GYROSCOPE SENSOR IN COMPUTER-ASSISTED SURGERY

  • US 20120029389A1
  • Filed: 07/30/2010
  • Published: 02/02/2012
  • Est. Priority Date: 07/30/2010
  • Status: Active Grant
First Claim
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1. A system for tracking an object in computer-assisted surgery, comprising:

  • a sensor unit adapted to be secured to the femur, the sensor unit comprising a gyroscope producing gyroscope readings related to orientation data about three axes of rotation;

    a tracking unit for receiving the gyroscope readings and comprising;

    an axis calibrator comprising a gyroscope reading calculator for adding at least a part of the gyroscope readings for specific movements of the object about a desired axis, and an axis normalizer for determining an orientation of the desired axis with respect to the sensor unit from the added gyroscope readings; and

    a tracking processor for subsequently tracking the desired axis from the gyroscope readings; and

    an interface for displaying the orientation data for the object from a tracking of the desired axis.

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