JPH03107756A - Air bubble detection sensor - Google Patents

Air bubble detection sensor

Info

Publication number
JPH03107756A
JPH03107756A JP1243362A JP24336289A JPH03107756A JP H03107756 A JPH03107756 A JP H03107756A JP 1243362 A JP1243362 A JP 1243362A JP 24336289 A JP24336289 A JP 24336289A JP H03107756 A JPH03107756 A JP H03107756A
Authority
JP
Japan
Prior art keywords
receiver
tube
groove
contact
case
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1243362A
Other languages
Japanese (ja)
Inventor
Yutaka Muramoto
Osahisa Ohira
Hiroshi Sakai
Koichi Innami
Original Assignee
Terumo Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Terumo Corp filed Critical Terumo Corp
Priority to JP1243362A priority Critical patent/JPH03107756A/en
Publication of JPH03107756A publication Critical patent/JPH03107756A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent an air layer from being formed and to improve the detection rate by increasing the area of contact between a tubular body and a groove part in the range between a transmitter and a receiver and improving the contactness.
CONSTITUTION: A signal wave U from an oscillator 1 being in contact with one-external-surface sides of parallel wall surface parts 3b of a case body 3 is passed through the tube 7 of blood B clamped in the case body 3 and detected by the receiver 2 which is connected to an electronic circuit 5 in contact with the other surface. Consequently, whether or not there is an air bubble P in the blood flowing in the tube 7 is detected. The tube 7 made of a soft material is pressed in the groove part 3a parallel to the case body 3, but deform along an arc part R provided at nearly the center part of the groove part 3a and no gap is formed, so that the signal wave U is all received by the receiver 2. Then there is no air layer of a gap, so the signal wave U is prevented from attenuating abruptly.
COPYRIGHT: (C)1991,JPO&Japio
JP1243362A 1989-09-21 1989-09-21 Air bubble detection sensor Pending JPH03107756A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1243362A JPH03107756A (en) 1989-09-21 1989-09-21 Air bubble detection sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1243362A JPH03107756A (en) 1989-09-21 1989-09-21 Air bubble detection sensor

Publications (1)

Publication Number Publication Date
JPH03107756A true JPH03107756A (en) 1991-05-08

Family

ID=17102714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1243362A Pending JPH03107756A (en) 1989-09-21 1989-09-21 Air bubble detection sensor

Country Status (1)

Country Link
JP (1) JPH03107756A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394732A (en) * 1993-09-10 1995-03-07 Cobe Laboratories, Inc. Method and apparatus for ultrasonic detection of air bubbles
EP1225445A1 (en) * 2001-01-20 2002-07-24 B. Braun Melsungen Ag Ultrasonic detector of gas bubbles
US8033157B2 (en) 2007-10-01 2011-10-11 Baxter International Inc. Medical fluid air bubble detection apparatus and method
JP2012115613A (en) * 2010-12-03 2012-06-21 Junken Medical株式会社 Device for blood transfusion, infusion or hemocatharsis and method for detecting suction defect of pump in the same
JP2018044893A (en) * 2016-09-15 2018-03-22 株式会社ジェイ・エム・エス Ultrasonic sensor head and ultrasonic detector including the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394732A (en) * 1993-09-10 1995-03-07 Cobe Laboratories, Inc. Method and apparatus for ultrasonic detection of air bubbles
JPH07163660A (en) * 1993-09-10 1995-06-27 Cobe Lab Inc Sealed body detector and detecting method
EP1225445A1 (en) * 2001-01-20 2002-07-24 B. Braun Melsungen Ag Ultrasonic detector of gas bubbles
US8033157B2 (en) 2007-10-01 2011-10-11 Baxter International Inc. Medical fluid air bubble detection apparatus and method
JP2012115613A (en) * 2010-12-03 2012-06-21 Junken Medical株式会社 Device for blood transfusion, infusion or hemocatharsis and method for detecting suction defect of pump in the same
JP2018044893A (en) * 2016-09-15 2018-03-22 株式会社ジェイ・エム・エス Ultrasonic sensor head and ultrasonic detector including the same
WO2018051865A1 (en) * 2016-09-15 2018-03-22 株式会社ジェイ・エム・エス Ultrasonic sensor head and ultrasonic detector having said ultrasonic sensor head
CN109716123A (en) * 2016-09-15 2019-05-03 株式会社Jms Supersonic sensing head and supersonic detector with the supersonic sensing head

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