Apparatus with automatic respiration monitoring and display

Details Apparatus with automatic respiration monitoring and display Apparatus with automatic respiration monitoring and display

2005-05-24

2005-05-24

Lewis, Aaron J. (Department: 3743)

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

C128S204230, C128S205230

Reexamination Certificate

active

06895963

ABSTRACT:
A respiratory device is provided with a display showing a respiration signal related to a breathing pattern of a patient. This signal is derived from the difference between a sensed signal indicative of the respiration and airflow generated by the device and a baseline signal. The parameter is adjusted so that the respiration signal is restricted to a predetermined dynamic range. A short term average of the respiration signal (taken over about 0.5 seconds) and a long term average of respiration signals (taken over about 12 seconds) are calculated based on the CPAP measure. These averages are used to monitor the dynamic change in the respiration signal. If a large variation in either average is detected, the baseline is set to a value selected to rapidly reduce the respiration signal to a lower offset.

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