Impedance devices and methods to use the same to obtain luminal organ measurements
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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Abstract
Impedance devices and methods to use the same to obtain luminal organ measurements. In at least one embodiment of an impedance device of the present disclosure, the impedance device comprises an elongated body having a distal body end, and a first electrode located along the elongated body at or near the distal body end, the first electrode configured to obtain one or more conductance values within a mammalian luminal organ within an electric field, wherein a measured parameter of the mammalian luminal organ can be calculated based in part upon the one or more conductance values obtained by the first electrode.
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Citations
20 Claims
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1. An impedance system, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of using an impedance device, the method comprising the steps of:
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introducing at least part of an impedance device into a mammalian luminal organ at a first location, the impedance device comprising; an elongated body having a distal body end, and a first electrode and a second electrode each located along the elongated body at the distal body end, the first electrode and the second electrode configured to obtain one or more conductance values within a mammalian luminal organ within an electric field, and wherein the first electrode is configured to operate as an excitation electrode and a detection electrode; providing electrical current to the first electrode and a first external electrode not coupled to the elongated body to generate the electric field, the first external electrode positioned upon or within a mammalian body having the mammalian luminal organ; obtaining at least one conductance value using the impedance device within the electric field; and calculating a measured parameter of the mammalian luminal organ based in part upon the at least one conductance value, the measured parameter of the mammalian luminal organ calculatable from at least one conductivity measurement. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of using an impedance device, the method comprising the steps of:
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introducing at least part of an impedance device into a mammalian luminal organ at a first location, the impedance device comprising; an elongated body having a distal body end, and a first electrode and a second electrode each located along the elongated body at the distal body end, the first electrode and the second electrode configured to obtain one or more conductance values within a mammalian luminal organ within an electric field, and wherein the first electrode is configured to operate as an excitation electrode and a detection electrode; providing electrical current to the first electrode and a first external electrode not coupled to the elongated body to generate the electric field, the first external electrode positioned upon or within a mammalian body having the mammalian luminal organ; obtaining at least one conductance value using the impedance device within the electric field and within an undiluted bolus of an injected first solution having a known conductivity differing from a blood conductivity; and calculating a measured parameter of the mammalian luminal organ calculatable from at least one conductivity measurement based in part upon the at least one conductance value. - View Dependent Claims (18, 19, 20)
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Specification