Air blower, and continuous positive pressure/non invasive positive pressure awakening (CPAP/NIPPV) device

摘要

A double-ended variable speed blower (100) for Continuous Positive Airway Pressure (CPAP) ventilation of patients includes two impellers (114,115) in the gas flow path that cooperatively pressurize gas to desired pressure and flow characteristics. Thus and the double-ended blower (100) can provide faster pressure response and desired flow characteristics over a narrower range of motor speeds and resulting in greater reliability and less acoustic noise. IMAGE