Patent ID: 9486157
Filing Date: 2016-11-08
CPC Classification: A61B,A61M

Claim Text:
1. A method for externally assessing or monitoring placement of an endo-tracheal tube for ventilation of a patient, said method comprising transmitting a current through at least two external measuring electrodes placed on a thoracic region of said patient; receiving, at a measuring unit via the at least two external measuring electrodes, thoracic impedance signals of said patient to assess or monitor placement of said endo-tracheal tube for ventilation of said patient; detecting, using a processing unit connected to the measuring unit, whether the received impedance signals indicate an impedance change; upon detection of an impedance change, comparing, using the processing unit, the detected impedance change to a predetermined threshold value indicative of a thoracic air volume change of said patient; transmitting a signal to at least one of an alarm device or a display device connected to said processing unit when the comparison indicates that the at least one impedance change is greater than or equal to the predetermined threshold value; and generating, in response to the signal, an indication that the proper endo-tracheal tube placement is achieved.