Automatic lung monitoring device, comprises electro-acoustic transmitters and receivers used to record local lung ventilation activity for comparison with expected activity

摘要

Device for continuous monitoring of local lung ventilation, in which a number of sound transmitters and receivers are used to monitor local lung ventilation activity by transmission and detection of reflected sound signals. The processed signals can be visually presented and stored in a data store. Permanent or considerable differences from expected local lung activity or state can be used to trigger an alarm.