Patent ID: 9445743
Filing Date: 2016-09-20
CPC Classification: A61B,A61F,A61M

Claim Text:
1. A method of creating a cross-sectional area profile of a targeted treatment site, the method comprising the steps of: introducing an impedance device having at least two detection electrodes positioned equidistant between at least two excitation electrodes into a treatment site of a luminal organ at a first position, wherein a distance between the at least two detection electrodes and the at least two excitation electrodes is based on a vessel diameter; measuring a first conductance at the first position using the impedance device and at least two injections of solutions having different conductivities; moving the impedance device to a second position in the luminal organ; measuring a second conductance at the second position using the impedance device and the at least two injections of solutions having different conductivities; calculating a first position cross-sectional area using the first conductance and a second position cross-sectional area using the second conductance; and constructing the cross-sectional profile of the targeted treatment site based in part on the calculated first position cross-sectional area and the calculated second position cross-sectional area.