Leak detection system and method for tube or catheter placement

摘要

The present disclosure relates to a leak detection system and method for tube or catheter placement. The system and method includes acoustically sensing a leak in the seal between a tube or catheter within a body and the body cavity against which it is sealed, assisting the user in adjusting the system until the leak has been substantially sealed, and establishing system parameters to be used thereafter to maintain the system in an operating state that will substantially prevent leakage, all using a noninvasive acoustic technique.

主权项

1. A leak detection method for tube placement, the method comprising:
using a microphone at only one location coupled to the tube to detect acoustic waves generated by vibrations from a passage of air between an inflatable cuff of the tube and an anatomical conduit when inserted in the anatomical conduit; and transmitting the acoustic waves from the microphone at the only one location to a processor that is configured to compare the acoustic waves to a baseline expected sound profile stored in a memory and determine that a leak around the inflatable cuff is present when the acoustic waves are in addition to the baseline expected sound profile, wherein the baseline expected sound profile is established by the detection of a frequency range over a duration of time, such that the expected baseline sound profile defines an absence of a backflow of the air and other fluids caused by leakage past the cuff.