Patent ID: 6142148
Filing Date: 2000-11-07
Classification: A61B,G01F

Abstract:
A measuring transducer for the measurement of gas flow, including the measurement of the pressure and/or flow of a patient's respiratory gas, which measuring transducer comprises:a tubular flow channel (1) for conveying the gas flow to be measured, said flow channel being delimited by a wall (2) having an interior surface exposed to the gas flow to be measured;a restricting element (3) disposed in the flow channel to restrict gas flow in the flow channel and presenting a surface exposed to the gas flow to be measured; andmeasuring channels (4) opening into the flow channel for the measurement of the pressure difference caused by the restricting element,at least one of said surface of the flow channel wall (2) and surface of the restricting element (3) being capable of retaining water inside it to remove water drops or drops containing water from said surface.