Title:
【発明の名称】流体の速度を測定する精度を高める方法および装置
Document Type and Number:
Japanese Patent JP2003511144
Kind Code:
A
Abstract:
The present invention relates to a method and associated apparatus for 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 ( 4 ). In characteristic manner, according to the method, the Doppler transducer is associated with a programmable memory ( 50 ) which contains at least one correction data item for correcting the Doppler signal transmitted by the transducer ( 4 ) to a transducer control and computer unit ( 8 ). Said computer unit ( 8 ) incorporates said signal correction data item in its computation (at 16 ) of each speed measurement on the basis of each signal emitted by the Doppler transducer, and it 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 its accuracy.
More Like This:
| JPS5337060 | ULTRASONIC FLOWMETER |
| WO/1995/004258 | IMPROVEMENTS RELATING TO FLUID FLOW MONITORING |
| JP5177057 | Intruder detection device and intruder detection method |
Inventors:
Ascor, Gerard
Peshu, Thierry
Peshu, Thierry
Application Number:
JP2001529347A
Publication Date:
March 25, 2003
Filing Date:
March 10, 2000
Export Citation:
Assignee:
ARROW INTERNATIONAL, INC.
International Classes:
G01P5/00; A61B8/02; A61B8/06; A61B8/12; G01F1/66; G01P5/24; G01S15/58; (IPC1-7): A61B8/12; G01P5/00
Domestic Patent References:
| JPH06129888A | 1994-05-13 |
Foreign References:
| FR2424733A1 | 1979-11-30 |
Attorney, Agent or Firm:
Soga Doteru (6 people outside)