| CPC A61N 1/0507 (2013.01) [A61M 25/0105 (2013.01); A61N 1/37247 (2013.01); A61N 1/37258 (2013.01); A61N 1/3754 (2013.01); A61N 1/378 (2013.01); A61M 2025/0166 (2013.01); A61M 2210/10 (2013.01); A61N 2001/083 (2013.01)] | 17 Claims |
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1. A tubing assembly comprising:
a catheter having a proximal end and a distal end and extending in a longitudinal direction, wherein the proximal end and the distal end define a lumen therebetween, and wherein the catheter is configured for placement within a digestive tract of a patient including an esophagus;
a stimulation electrode assembly, wherein the stimulation electrode assembly is configured to deliver an electrical stimulation waveform to tissue at a voltage of from about 1.01volts to about 100 volts and a noise signal over a frequency range, wherein the tissue comprises muscle or cartilage;
a recording electrode assembly, wherein the recording electrode assembly monitors for electrical activity elicited by the tissue in response to the noise signal and communicates the electrical activity elicited by the tissue to a processor in real-time, wherein the processor is configured to:
determine if the electrical activity elicited by the tissue is in the form of one or more evoked potentials or corresponds with an impedance signature for the tissue over the frequency range,
determine whether the catheter is positioned in the esophagus based, at least in part, on the one or more evoked potentials or the determined impedance signature, and
generate an alert in response to determining that the catheter is not positioned in the esophagus; and
an electrical connection for delivering the electrical stimulation waveform and noise signal to the stimulation electrode assembly.
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