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Spinal distraction tool for load and position measurement

  • US 8,945,133 B2
  • Filed: 09/23/2011
  • Issued: 02/03/2015
  • Est. Priority Date: 09/23/2011
  • Status: Active Grant
First Claim
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1. A method of distracting a spinal region comprising the steps of:

  • inserting a sensored head of a spinal instrument into a spinal region;

    electronically measuring at least one of the orientation, rotation, angle, or position of the sensor head with respect to a reference position not on the spinal instrument;

    positioning the sensored head until the position of a load magnitude on the sensored head as electronically measured by the sensored head is within a predetermined positional range; and

    distracting the spinal region to a height where an electrical measurement of the load magnitude by the sensored head of the spinal instrument is within a predetermined load range.

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