JPS6458240A - Blood flowmeter - Google Patents
Blood flowmeterInfo
- 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
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.
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)
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)
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 |
-
1987
- 1987-08-31 JP JP62217140A patent/JPS6458240A/en active Pending
Patent Citations (3)
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)
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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