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Impedance devices and methods to use the same to obtain luminal organ measurements

  • US 9,675,257 B2
  • Filed: 03/16/2014
  • Issued: 06/13/2017
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. An impedance system, comprising:

  • an impedance device comprising;

    an elongated body having a distal body end;

    a first electrode located along the elongated body at the distal body end, wherein the first electrode is configured to obtain one or more conductance values within a mammalian luminal organ within an electric field and to operate as an excitation electrode and a detection electrode; and

    a second electrode positioned along the elongated body;

    a first external electrode for placement upon or within a mammalian body, the first external electrode not coupled to the elongated body; and

    a second external electrode for placement upon or within a mammalian body, the second external electrode not coupled to the elongated body;

    wherein the first electrode is configured to generate the electric field within a mammalian body when the first external electrode is positioned upon or within the mammalian body and when the first electrode and the first external electrode are activated;

    wherein the second electrode and the second external electrode are configured to detect the electric field generated by the first electrode and the first external electrode when the second external electrode is positioned upon or within the mammalian body; and

    wherein a measured parameter of the mammalian luminal organ calculatable from at least one conductivity measurement can be calculated based in part upon the one or more conductance values obtained by the first electrode.

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