Device for measuring a characteristic of liquid flow in a...

Details Device for measuring a characteristic of liquid flow in a... Device for measuring a characteristic of liquid flow in a...

A - Human Necessities

61

B

349/36, 349/39

A61B 8/06 (2006.01) G01F 1/66 (2006.01)

Patent

CA 1320756

Abstract of the Disclosure System for measuring the volumetric flow of blood in a vessel of a patient comprising a transducer positioned in a vessel in a patient for supplying ultrasonic energy. The transducer produces a substantially uniform beam which encompasses the vessel. The transducer receives ultrasonic energy back scattered from the red blood cells. A first moment detector is provided. A signal is supplied from the transducer to the first moment detector. A calculated correctional factor is also provided to the output of the first moment detector to provide an electrical output representing volume flow. 44220

563591

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