Impedance devices for obtaining conductance measurements within luminal organs
First Claim
1. An impedance device, comprising:
- an elongated body; and
a detector positioned upon the elongated body, the detector comprising at least four electrodes configured to obtain one or more conductance measurements within a luminal organ comprising a diameter, the at least four electrodes comprising at least a most distal electrode, an electrode immediately adjacent to the most distal electrode, a proximal electrode, and an electrode immediately adjacent to the proximal electrode;
wherein the most distal electrode is spaced at least 3 mm from the electrode immediately adjacent to the most distal electrode, wherein the electrode immediately adjacent to the most distal electrode is spaced at least 2 mm from the electrode immediately adjacent to the proximal electrode, and wherein the electrode immediately adjacent to the proximal electrode is spaced at least 6 mm from the proximal electrode, and wherein the distance between the most distal electrode and the proximal electrode is at least two times the diameter of the luminal organ;
wherein the most distal electrode and the most proximal electrode are not equidistant to the electrode immediately adjacent to the most distal electrode and the electrode immediately adjacent to the most proximal electrode, respectively; and
wherein a distance between the electrode immediately adjacent to the most distal electrode and the electrode immediately adjacent to the proximal electrode is smaller than a distance between the most distal electrode and the electrode immediately adjacent to the most distal electrode and also smaller than a distance between the proximal electrode and the electrode immediately adjacent to the proximal electrode.
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Accused Products
Abstract
Impedance devices for obtaining conductance measurements within luminal organs. In at least one embodiment of an impedance device of the present disclosure, the device, comprises an elongated body and an detector positioned upon the elongated body, the detector comprising at least five electrodes and configured to obtain one or more conductance measurements generated using a first arrangement of four of the at least five electrodes and further configured to obtain one or more fluid velocity measurements using a second arrangement of four of the at least five electrodes when the elongated body is positioned within a fluid environment of a mammalian luminal organ, wherein the first arrangement is different from the second arrangement.
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Citations
19 Claims
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1. An impedance device, comprising:
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an elongated body; and a detector positioned upon the elongated body, the detector comprising at least four electrodes configured to obtain one or more conductance measurements within a luminal organ comprising a diameter, the at least four electrodes comprising at least a most distal electrode, an electrode immediately adjacent to the most distal electrode, a proximal electrode, and an electrode immediately adjacent to the proximal electrode; wherein the most distal electrode is spaced at least 3 mm from the electrode immediately adjacent to the most distal electrode, wherein the electrode immediately adjacent to the most distal electrode is spaced at least 2 mm from the electrode immediately adjacent to the proximal electrode, and wherein the electrode immediately adjacent to the proximal electrode is spaced at least 6 mm from the proximal electrode, and wherein the distance between the most distal electrode and the proximal electrode is at least two times the diameter of the luminal organ; wherein the most distal electrode and the most proximal electrode are not equidistant to the electrode immediately adjacent to the most distal electrode and the electrode immediately adjacent to the most proximal electrode, respectively; and wherein a distance between the electrode immediately adjacent to the most distal electrode and the electrode immediately adjacent to the proximal electrode is smaller than a distance between the most distal electrode and the electrode immediately adjacent to the most distal electrode and also smaller than a distance between the proximal electrode and the electrode immediately adjacent to the proximal electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An impedance device, comprising:
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an elongated body selected from the group consisting of a wire and a catheter; and a detector positioned upon the elongated body, the detector comprising at least four electrodes configured to obtain one or more conductance measurements within a luminal organ of at least 4 mm in diameter, the at least four electrodes comprising at least a most distal electrode, an electrode immediately adjacent to the most distal electrode, a proximal electrode, and an electrode immediately adjacent to the proximal electrode; wherein the most distal electrode is spaced between 3 mm and 5 mm from the electrode immediately adjacent to the most distal electrode, wherein the electrode immediately adjacent to the most distal electrode is spaced about 2 mm from the electrode immediately adjacent to the proximal electrode, and wherein the electrode immediately adjacent to the proximal electrode is spaced at least 6 mm from the proximal electrode; and wherein the distance between the most distal electrode and the proximal electrode is at least two times the diameter of the luminal organ. - View Dependent Claims (9, 10, 11)
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12. An impedance device, comprising:
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an elongated body; and a detector positioned upon the elongated body, the detector comprising at least five electrodes, the at least five electrodes comprising; a most distal electrode, an electrode immediately adjacent to the most distal electrode, a most proximal electrode, an electrode immediately adjacent to the most proximal electrode, and a central electrode positioned between the electrode immediately adjacent to the most distal electrode and the electrode immediately adjacent to the most proximal electrode, wherein the electrode immediately adjacent to the most distal electrode is spaced at least 1 mm from the central electrode; wherein the most distal electrode and the most proximal electrode are not equidistant to the electrode immediately adjacent to the most distal electrode and the electrode immediately adjacent to the most proximal electrode, respectively; and wherein a distance between the electrode immediately adjacent to the most distal electrode and the electrode immediately adjacent to the proximal electrode is smaller than a distance between the most distal electrode and the electrode immediately adjacent to the most distal electrode and also smaller than a distance between the proximal electrode and the electrode immediately adjacent to the proximal electrode; wherein the impedance device is configured to obtain one or more conductance measurements and one of more fluid velocity measurements when the elongated body is positioned within a fluid environment of a mammalian luminal organ, wherein the distance between the most distal electrode and the proximal electrode is at least two times the diameter of the luminal organ. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification