JPS6417629A - Blood flow rate measuring apparatus - Google Patents

Blood flow rate measuring apparatus

Info

Publication number
JPS6417629A
JPS6417629A JP62173641A JP17364187A JPS6417629A JP S6417629 A JPS6417629 A JP S6417629A JP 62173641 A JP62173641 A JP 62173641A JP 17364187 A JP17364187 A JP 17364187A JP S6417629 A JPS6417629 A JP S6417629A
Authority
JP
Japan
Prior art keywords
temp
injection
measured value
blood
injection liquid
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
JP62173641A
Other languages
Japanese (ja)
Inventor
Takashi Kawabata
Kiyoshi Takagi
Yuzo Shida
Shinichi Miyata
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.)
Zeon Corp
Original Assignee
Nippon Zeon Co Ltd
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 Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Priority to JP62173641A priority Critical patent/JPS6417629A/en
Publication of JPS6417629A publication Critical patent/JPS6417629A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

PURPOSE:To measure a blood flow rate in a state near to a continuous monitor and to reduce a measuring error due to the irregularity of the injection speed of an injection liquid, by digitalizing the temp. measured value of the injection liquid and the measured value of the temp. of blood due to the temp. measuring element in a catheter before processing and displaying or recording the calculated blood amount. CONSTITUTION:An injection liquid 7 cooled to predetermined temp. enters a quantitative constant speed injection apparatus 45 to be guided to a catheter 2 and injected in the body from a cooling water injection orifice 14 provided to a predetermined region through a cooling water supply lumen 17. The temp. measured value of the injection liquid due to a thermistor 49 and the temp. measured value of blood due to a thermistor 8 are together taken out by thermistor conductors 50, 51. At this time, a bridge circuit converting the change of electric resistance to a current, a signal amplifying circuit and an automatic zero control circuit compensating a drift with the elaspe of time are provided and the signals from the thermistors 49, 8 are digitalized by an A/D converter 32 to be processed by a CPU 35. Signals showing a blood amount, the temp. of the injection liquid and an injection amount are inputted to a display apparatus 36 from the CPU 35 to automatically perform predetermined display.
JP62173641A 1987-07-10 1987-07-10 Blood flow rate measuring apparatus Pending JPS6417629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62173641A JPS6417629A (en) 1987-07-10 1987-07-10 Blood flow rate measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62173641A JPS6417629A (en) 1987-07-10 1987-07-10 Blood flow rate measuring apparatus

Publications (1)

Publication Number Publication Date
JPS6417629A true JPS6417629A (en) 1989-01-20

Family

ID=15964376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62173641A Pending JPS6417629A (en) 1987-07-10 1987-07-10 Blood flow rate measuring apparatus

Country Status (1)

Country Link
JP (1) JPS6417629A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03176029A (en) * 1989-09-14 1991-07-31 Terumo Corp Catheter for measuring cardiac output
JPH05184549A (en) * 1991-07-01 1993-07-27 Boc Health Care Inc Heat diluting injection solution device provided with filter
JPH0575742U (en) * 1992-03-23 1993-10-15 ホシデン株式会社 Liquid crystal resistivity monitor in liquid crystal injection device
JP2011521753A (en) * 2008-06-04 2011-07-28 エドワーズ ライフサイエンシーズ アイピーアールエム アーゲー Apparatus for determining blood volume and / or blood volume flow and method of operating the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047480A (en) * 1973-02-09 1975-04-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5047480A (en) * 1973-02-09 1975-04-26

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03176029A (en) * 1989-09-14 1991-07-31 Terumo Corp Catheter for measuring cardiac output
JPH05184549A (en) * 1991-07-01 1993-07-27 Boc Health Care Inc Heat diluting injection solution device provided with filter
JPH0575742U (en) * 1992-03-23 1993-10-15 ホシデン株式会社 Liquid crystal resistivity monitor in liquid crystal injection device
JP2011521753A (en) * 2008-06-04 2011-07-28 エドワーズ ライフサイエンシーズ アイピーアールエム アーゲー Apparatus for determining blood volume and / or blood volume flow and method of operating the same

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