JPS6417624A - Blood flowmeter - Google Patents

Blood flowmeter

Info

Publication number
JPS6417624A
JPS6417624A JP62174473A JP17447387A JPS6417624A JP S6417624 A JPS6417624 A JP S6417624A JP 62174473 A JP62174473 A JP 62174473A JP 17447387 A JP17447387 A JP 17447387A JP S6417624 A JPS6417624 A JP S6417624A
Authority
JP
Japan
Prior art keywords
living body
blood flow
blood
operator
high frequency
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.)
Granted
Application number
JP62174473A
Other languages
Japanese (ja)
Other versions
JPH0466574B2 (en
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 JP62174473A priority Critical patent/JPS6417624A/en
Publication of JPS6417624A publication Critical patent/JPS6417624A/en
Publication of JPH0466574B2 publication Critical patent/JPH0466574B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/42—Introducing metal atoms or metal-containing groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F30/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
    • C08F30/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal
    • C08F30/08—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

PURPOSE:To detect and display the heart rate of a living body, by guiding the scattering beam from the living body of laser beam to a photoelectric detector and analyzing the output signal thereof to measure a blood state and measuring the number of times of a blood amount exceeding a preset blood amount. CONSTITUTION:The laser beam emitted from a laser beam source 4 passes through a beam transmitting fiber 2 to irradiate a living body S from the leading end of a probe 1. A part of the beam scattered by the blood flow in the living body S returns to the probe 1 to pass through a beam receiving fiber 3 and is incident to a photoelectric detector 5 to be converted to an electric signal which is, in turn, amplified by an amplifier 6 and separated into a high frequency component and a low frequency component by band-pass filters 7, 8 and the ratio of both components is calculated by an operator 9 to be displayed on a display part 12 as a blood flow speed. Further, the output signal of the band-pass filter 7 on a high frequency side enters a low-pass filter 10 to cut a high frequency component and a zero cross detector 11 detects that the signal relating to a blood flow rate passes a zero point and the blood flow rate is calculated by the operator 9. The operator 9 has a timer and can calculate the number of zero cross times per unit time and 1/2 of the calculated value is displayed on the display part 12 as a heart rate.
JP62174473A 1987-07-13 1987-07-13 Blood flowmeter Granted JPS6417624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62174473A JPS6417624A (en) 1987-07-13 1987-07-13 Blood flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62174473A JPS6417624A (en) 1987-07-13 1987-07-13 Blood flowmeter

Publications (2)

Publication Number Publication Date
JPS6417624A true JPS6417624A (en) 1989-01-20
JPH0466574B2 JPH0466574B2 (en) 1992-10-23

Family

ID=15979095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62174473A Granted JPS6417624A (en) 1987-07-13 1987-07-13 Blood flowmeter

Country Status (1)

Country Link
JP (1) JPS6417624A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731595A (en) * 1993-07-23 1995-02-03 Kao Corp Blood flow measuring device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0731595A (en) * 1993-07-23 1995-02-03 Kao Corp Blood flow measuring device and method

Also Published As

Publication number Publication date
JPH0466574B2 (en) 1992-10-23

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