Title:
PRESSURE SENSOR DEVICE AND EXTRACORPOREAL CIRCULATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/013088
Kind Code:
A1
Abstract:
[Problem] To provide a pressure sensor device with which it is possible to suppress erroneous sensing of the pressure of a medium within a tube. [Solution] This pressure sensor device 30 is configured to be installable in a tube 11 through which a medium is transported, and senses the pressure of the medium BL within the tube 11, wherein the pressure sensor device 30 comprises: a body part 31 configured to be mountable in the tube 11; a polarizing means 34 provided to the body part 31, the polarizing means 34 transmitting light that oscillates in a specific direction; an image acquisition unit 32 provided to the body part 31, the image acquisition unit 32 acquiring, through the polarizing means 34, image information pertaining to a pressure-receiving part that deforms upon receiving pressure; and a control unit 100 that converts the image information acquired by the image acquisition unit 32 into pressure information pertaining to pressure.
Inventors:
ITAMOCHI YOSUKE (JP)
HISAMATSU KOZO (JP)
HISAMATSU KOZO (JP)
Application Number:
PCT/JP2018/025493
Publication Date:
January 17, 2019
Filing Date:
July 05, 2018
Export Citation:
Assignee:
TERUMO CORP (JP)
International Classes:
G01L11/02; A61M1/16; A61M1/36
Domestic Patent References:
| WO2007123156A1 | 2007-11-01 |
Foreign References:
| JP3201948U | 2016-01-14 | |||
| US20090009764A1 | 2009-01-08 | |||
| JPH09229799A | 1997-09-05 | |||
| US4911015A | 1990-03-27 | |||
| JPS5728347U | 1982-02-15 |
Other References:
See also references of EP 3654006A4
Attorney, Agent or Firm:
ARAI Tamotsu et al. (JP)
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