JPS554580A - Transfusion run-out detector - Google Patents

Transfusion run-out detector

Info

Publication number
JPS554580A
JPS554580A JP7841678A JP7841678A JPS554580A JP S554580 A JPS554580 A JP S554580A JP 7841678 A JP7841678 A JP 7841678A JP 7841678 A JP7841678 A JP 7841678A JP S554580 A JPS554580 A JP S554580A
Authority
JP
Japan
Prior art keywords
transfusion
receiver
pipe
amplitude
inlet pipe
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
JP7841678A
Other languages
Japanese (ja)
Inventor
Atsuko Hayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP7841678A priority Critical patent/JPS554580A/en
Publication of JPS554580A publication Critical patent/JPS554580A/en
Pending legal-status Critical Current

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  • Geophysics And Detection Of Objects (AREA)

Abstract

PURPOSE: To enable the occurrence of run-out of transfusion to be surely detected from the magnitude of the amplitude of ultrasonic vibrations by providing ultrasonic vibrators on both sides of an inlet pipe for transfusion injection.
CONSTITUTION: A transmitter 1 and receiver 2 consisting of ultrasonic wave vibrators are provided in mutual opposition to a transfusion inlet pipe 3 of an instillator. Ultrasonic vibrations propagate in the order of the transmitter 1 - pipe wall of inlet pipe 3 - transfusion in the pipe 3 - pipe wall of the pipe 3 - receiver 2. The high frequency voltage of the same frequency as the natural resonance frequency of the receiver 2 is generated in the terminal of the receiver 2. This voltage is amplified by an amplifier 4 and is applied to the transmitter 1. If part of the output of the amplifier 4 is introduced into an amplitude comparator 5 and is compared with the reference amplitude having a suitable amplitude, the output of the amplitude comparator 5 becomes "1" or "0" depending upon whether the inside of the inlet pipe 3 is filled with liquid or with gas, by which the run-out of the transfusion may be detected.
COPYRIGHT: (C)1980,JPO&Japio
JP7841678A 1978-06-27 1978-06-27 Transfusion run-out detector Pending JPS554580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7841678A JPS554580A (en) 1978-06-27 1978-06-27 Transfusion run-out detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7841678A JPS554580A (en) 1978-06-27 1978-06-27 Transfusion run-out detector

Publications (1)

Publication Number Publication Date
JPS554580A true JPS554580A (en) 1980-01-14

Family

ID=13661428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7841678A Pending JPS554580A (en) 1978-06-27 1978-06-27 Transfusion run-out detector

Country Status (1)

Country Link
JP (1) JPS554580A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218842A (en) * 1983-05-27 1984-12-10 大日精化工業株式会社 Conductive high molecular shape and manufacture thereof
JPS6098981A (en) * 1983-11-04 1985-06-01 Mitsubishi Kakoki Kaisha Ltd Bioreactor of rotary disc type
JPH04127207U (en) * 1991-05-10 1992-11-19 恵子 小田切 Attachments such as skirts that can be combined with the main body of clothing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59218842A (en) * 1983-05-27 1984-12-10 大日精化工業株式会社 Conductive high molecular shape and manufacture thereof
JPS6098981A (en) * 1983-11-04 1985-06-01 Mitsubishi Kakoki Kaisha Ltd Bioreactor of rotary disc type
JPH04127207U (en) * 1991-05-10 1992-11-19 恵子 小田切 Attachments such as skirts that can be combined with the main body of clothing

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