Patent ID: 6287260
Filing Date: 2001-09-11
Classification: A61B,G01F,G01P,G01S

Abstract:
A method of improving the accuracy with which the speed of a fluid, such as a liquid, in particular blood flowing in a duct, such as a blood vessel, in particular the aorta, is measured by means of a signal emitted by a Doppler transducer, wherein the Doppler transducer is associated with a programmable memory which contains at least one correction data item for correcting the Doppler signal transmitted by the transducer to a transducer control and computer unit, wherein said computer unit incorporates said signal correction data item in its computation during each speed measurement on the basis of each signal emitted by the Doppler transducer, and computes the speed value while taking account of said correction data item, so as to provide a corrected measurement of the speed of said fluid, thereby improving the accuracy of the measurement.