BREATHING MONITOR APPARATUS

摘要

A breathing monitor apparatus comprises a catheter insertable in the airway of a subject. First and second pressure sensors are provided on the catheter and are arranged to supply first and second pressure signals. A processing unit receives the first and second pressure signals and applies a filter to both of the first and second pressure signals. The processing unit further obtains a value indicative of the amplitude of the first filtered signal and the amplitude of the second filtered signal, and also calculates the difference between the obtained values. The processing unit then generates an output based on the obtained values and the calculated difference, which is indicative of obstruction in the airway.