RESPIRATION MONITOR
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Abstract
A RESPIRATION MONITOR WHICH MAY BE INSERTED DIRECTLY INTO A HIGH-PRESSURE OXYGEN LINE IS PROVIDED BY A CAPPED TUBE ADAPTED TO BE CONNECTED TO A SOURCE OF OXYGEN UNDER PRESSURE. A HOLE ON THE SIDE OF THE TUBE ALLOWS OXYGEN TO ESCAPE INTO A SEALED CHAMBER HAVING AN OUTLET PORT ADAPTED TO BE CONNECTED TO A FACE MASK THROUGH A REGULATOR. A MICROPHONE PLACED OPPOSITE THE HOLE DETECTS TURBULENCE CREATED BY OXYGEN TURNING 90* TO ESCAPE. A
SIGNAL FROM THE MICROPHONE IS CONDITIONED TO DERIVE DESIRED INFORMATION, SUCH AS RESPIRATION RATE AND TOTAL BREATHS.
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