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Methods of and apparatus for determining fluid volume presence in mammalian tissue

  • US 20060264775A1
  • Filed: 03/11/2004
  • Published: 11/23/2006
  • Est. Priority Date: 03/14/2003
  • Status: Abandoned Application
First Claim
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1. A method of determining the presence of fluid volume in mammalian tissue of a mammal having a body, comprising:

  • providing a first set of injection electrodes and a second set of measurement electrodes;

    positioning members of the first set of electrodes on the body to introduce electrical current flow through the mammalian tissue and thereby establish flow paths that define injection vectors along which electrical currents flow between two or more injection electrodes;

    positioning members of the second set of electrodes on the body to define measurement vectors relating to electrical voltages produced in response to the electrical currents flowing between the injection electrodes, the injection and measurement vectors defining an anatomical space of the mammalian tissue;

    deriving from each of different pairs of the injection and measurement vectors an electrical bio-impedance value that is characteristic of the electrical bio-impedance of a region of the anatomical space; and

    analyzing the electrical bio-impedance values to detect a presence of a volume of fluid or change in a volume of fluid in the anatomical space.

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