JPS6458240A - Blood flowmeter - Google Patents

Blood flowmeter

Info

Publication number
JPS6458240A
JPS6458240A JP62217140A JP21714087A JPS6458240A JP S6458240 A JPS6458240 A JP S6458240A JP 62217140 A JP62217140 A JP 62217140A JP 21714087 A JP21714087 A JP 21714087A JP S6458240 A JPS6458240 A JP S6458240A
Authority
JP
Japan
Prior art keywords
blood flow
data
moving average
specimen
probe
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
JP62217140A
Other languages
Japanese (ja)
Inventor
Atsushi Saito
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62217140A priority Critical patent/JPS6458240A/en
Publication of JPS6458240A publication Critical patent/JPS6458240A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

PURPOSE:To provide a blood flowmeter obtaining a stable result while reflecting a change in blood flow, by providing a setting means capable of arbitrarily setting the number of data of the optimum moving average corresponding to blood flow change velocity. CONSTITUTION:The laser beam emitted from a laser beam source 1 passes through a beam transmitting fiber 2 to irradiate a specimen S from the leading end of a probe 3. A part of beam scattered by the blood flow in the specimen S and containing the data of blood flow is returned to a probe 3 to be incident to a photoelectric detector 5 through a beam receiving fiber 4 and converted to an electric signal which is, in turn, amplified by an amplifier 6 to be separated into high and low frequency components by two kinds of band pass filters 7, 8 and these two peak values are converted to digital quantities by an AD converter 9 to be inputted to an operator 10 and instantaneously blood flow velocity is obtained. In the operator 10, the contact of an external switch 12 is detected to input the number of data when moving average is taken and this number data is used to output the blood flow value calculated by moving average to a display part 11.
JP62217140A 1987-08-31 1987-08-31 Blood flowmeter Pending JPS6458240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62217140A JPS6458240A (en) 1987-08-31 1987-08-31 Blood flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62217140A JPS6458240A (en) 1987-08-31 1987-08-31 Blood flowmeter

Publications (1)

Publication Number Publication Date
JPS6458240A true JPS6458240A (en) 1989-03-06

Family

ID=16699481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62217140A Pending JPS6458240A (en) 1987-08-31 1987-08-31 Blood flowmeter

Country Status (1)

Country Link
JP (1) JPS6458240A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0373129A (en) * 1989-08-14 1991-03-28 Morita Mfg Co Ltd Optical diagnostic device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510981A (en) * 1978-04-10 1980-01-25 Hewlett Packard Yokogawa Sphygmomanometer
JPS5937929A (en) * 1982-08-27 1984-03-01 セイコーインスツルメンツ株式会社 Pulse meter
JPS6054056A (en) * 1983-09-02 1985-03-28 Nec Corp Interface circuit of bit data write memory

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5510981A (en) * 1978-04-10 1980-01-25 Hewlett Packard Yokogawa Sphygmomanometer
JPS5937929A (en) * 1982-08-27 1984-03-01 セイコーインスツルメンツ株式会社 Pulse meter
JPS6054056A (en) * 1983-09-02 1985-03-28 Nec Corp Interface circuit of bit data write memory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0373129A (en) * 1989-08-14 1991-03-28 Morita Mfg Co Ltd Optical diagnostic device

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