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Implantable dual sensor bio-pressure transponder and method of calibration

  • US 9,668,663 B2
  • Filed: 03/24/2015
  • Issued: 06/06/2017
  • Est. Priority Date: 03/24/2014
  • Status: Active Grant
First Claim
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1. A bio-pressure sensor system, comprising:

  • a first implantable sensor to provide a reference pressure measurement;

    a second implantable sensor to measure a fluid pressure associated with a bodily fluid within a human body;

    a first reference element; and

    a second reference element in fluid communication with the first implantable sensor, the second reference element to provide a reference pressure, the second reference element comprising a static fluid, the static fluid being different than the bodily fluid, wherein the reference pressure comprises a known first reference pressure provided at a first position and a known second reference pressure provided at a second position, the first position being defined as a reference axis being parallel with a gravitational field acting on the second reference element, and the second position being defined as the reference axis being orthogonal to the gravitational field, wherein the reference axis extends through the second reference element and orthogonal to the first implantable sensor,wherein;

    the first and second implantable sensors share the first reference element,the second implantable sensor is not in fluid communication with the second reference element, andthe first and second implantable sensors each comprise independent output signals.

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