Title:
Blood circulating device
Document Type and Number:
Japanese Patent JP6141733
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a blood circulation apparatus which is accurately measuring the flow rate value of blood in response to a change in characteristics of a patient's blood varying from hour to hour when circulating blood by actuating a pump.SOLUTION: An extracorporeal circulation apparatus 1 includes: an ultrasonic signal detection unit (an ultrasonic bubble flow rate detection sensor 20) that is disposed in a circulation circuit 1R, detects blood passing through the circulation circuit 1R by ultrasonic wave, and acquires a measured flow rate value of the blood; a measurement unit (a monitor measurement cell 70) that is disposed in the circulation circuit 1R and measures a hematocrit value of the blood passing through the circulation circuit 1R: and a control unit 100 that corrects the measured flow rate value of the blood acquired by the ultrasonic detection unit, on the basis of the hematocrit value Ht which is correlated with density of the blood measured by the measurement unit, and acquires a corrected flow rate value of the blood.
Inventors:
Yuuki Hara
Application Number:
JP2013195762A
Publication Date:
June 07, 2017
Filing Date:
September 20, 2013
Export Citation:
Assignee:
Terumo Corporation
International Classes:
A61M1/36; A61B8/06; G01F1/00; G01F1/66; G01N29/02
Domestic Patent References:
| JP11076394A | ||||
| JP2010119859A | ||||
| JP2006314800A | ||||
| JP2012078270A |
Foreign References:
| WO2012116336A2 |
Attorney, Agent or Firm:
岡▲崎▼ 信太郎
Arai Zen
Arai Zen
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