| 摘要 |
<p>A respiratory measurement system including a respiratory air flow sensor (22), a microprocessor based analyzer module (24), a set of lumen tubes (44, 45, 46) for connecting the air flow sensor to the analyzer module, a connector (25) attaches to the module housing, and an electronic subassembly for calculating the patient's respiratory air flow rate based on pressure differential measurements received from the air flow sensor. The air flow sensor is a tubular member providing air passageway for the flow of air between a patient and a ventilator. The passageway includes fixed orifice-type obstruction having a plurality of aerodynamically curved vanes to produce a pressure drop.</p> |
