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Patent Searching and Data


Title:
PRESSURE SENSOR AND EXTRACORPOREAL CIRCULATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2018/151084
Kind Code:
A1
Abstract:
[Problem] To provide a pressure sensor and an extracorporeal circulation apparatus whereby the in-tube pressure of a liquid circulating through a circuit can be more accurately and more stably sensed. [Solution] A pressure sensor 30 for sensing the pressure of a liquid inside an elastically deformable tube 11, 12, 15 for transporting the liquid, the pressure sensor 30 being configured so as to be installable in the tube 11, 12, 15, wherein the pressure sensor 30 is provided with: a body 31 mountable to the tube 11, 12, 15; a load sensing element 40 provided to the body 31 and being capable of measuring a force applied to the tube 11, 12, 15, the load sensing element 40 having a measurement terminal 41 capable of contacting an outer surface of the tube 11, 12, 15; and a control unit 100 for executing control for causing the measurement terminal 41 to intermittently come in contact with the outer surface of the tube 11, 12, 15, and calculating the pressure of the liquid inside the tube 11, 12, 15 on the basis of the measurement value measured by the load sensing element 40.

Inventors:
HISAMATSU Kozo (1500 Inokuchi Nakai-mach, Ashigarakami-gun Kanagawa 51, 〒2590151, JP)
FURUKAWA Shinpei (1500 Inokuchi Nakai-mach, Ashigarakami-gun Kanagawa 51, 〒2590151, JP)
ITAMOCHI Yosuke (1500 Inokuchi Nakai-mach, Ashigarakami-gun Kanagawa 51, 〒2590151, JP)
Application Number:
JP2018/004857
Publication Date:
August 23, 2018
Filing Date:
February 13, 2018
Export Citation:
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Assignee:
TERUMO KABUSHIKI KAISHA (44-1, Hatagaya 2-chome Shibuya-ku Tokyo, 72, 〒1510072, JP)
International Classes:
G01L7/00; A61M1/36; G01L9/00
Foreign References:
JP2006081852A2006-03-30
JP2013538650A2013-10-17
JP2014505538A2014-03-06
JPH05195959A1993-08-06
JPS63189163A1988-08-04
US20060122552A12006-06-08
Attorney, Agent or Firm:
ARAI Tamotsu et al. (Yurakucho Denki Building North Tower 8F, Section 810 1-7-1 Yurakuch, Chiyoda-ku Tokyo 06, 〒1000006, JP)
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