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Bone oxygenation measurement

  • US 8,792,951 B1
  • Filed: 02/23/2010
  • Issued: 07/29/2014
  • Est. Priority Date: 02/23/2010
  • Status: Active Grant
First Claim
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1. A method of making an oxygen saturation measurement for a bone comprising:

  • advancing an elongated probe through an incision in a tissue, wherein the probe comprises;

    a first tube;

    a sensor head, coupled to the first tube; and

    first and second fiber optic cables, coupled to the sensor head, wherein ends of the first and second fiber optic cables are exposed on a surface of the sensor head, and an axis passing through the first tube passes through the surface;

    positioning the elongated probe in the tissue so the sensor head contacts a bone for which an oxygen saturation parameter is to be measured;

    causing transmitting of a first light signal through the first fiber optic cable to the sensor head, wherein from the sensor head, the first light signal is directed at the bone;

    after causing transmitting of the first light signal through the first fiber optic cable, maintaining a position of the probe at the bone for the probe to receive a reflection of the first light signal from the bone, wherein the reflection of the first light signal from the bone is a second light signal; and

    causing transmitting of the second light signal via the second fiber optic cable, wherein the second light signal is transmitted in a direction opposite of the transmitting of the first light signal.

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