JPS6462128A - Ultrasonic pulse doppler blood flowmeter - Google Patents
Ultrasonic pulse doppler blood flowmeterInfo
- Publication number
- JPS6462128A JPS6462128A JP62219260A JP21926087A JPS6462128A JP S6462128 A JPS6462128 A JP S6462128A JP 62219260 A JP62219260 A JP 62219260A JP 21926087 A JP21926087 A JP 21926087A JP S6462128 A JPS6462128 A JP S6462128A
- Authority
- JP
- Japan
- Prior art keywords
- sampling
- blood flow
- doppler shift
- data
- sampling pulse
- 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
- 239000008280 blood Substances 0.000 title 1
- 210000004369 blood Anatomy 0.000 title 1
- 238000005070 sampling Methods 0.000 abstract 5
- 230000017531 blood circulation Effects 0.000 abstract 3
- 238000005259 measurement Methods 0.000 abstract 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
PURPOSE:To rapidly start measurement and to easily deal with such a case that a sampling point is shifted during measurement, by automatically forming a sampling pulse for sampling the echo signal of a blood flow part generating Doppler shift. CONSTITUTION:In blood flow position detecting circuits 14, 15 only the data of the depth position corresponding to the blood flow part K generating Doppler shift among the outputs of low-pass filters 10, 11 shown by a drawing B of the echo signal obtained from a living body 5 is stored in the corresponding depth position address of the memory of a digital scanning converter 3. The converter 3 judges an address having relatively large data among the data of the memory stored therein and divides the frequency of the signal from a reference signal generator 2 to automatically form a sampling pulse E synchronous to the repeating cycle of a transmitting trigger pulse to supply the same to sample holding circuits 12, 13 and Doppler shift is detected from the signal extracted by said sampling pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62219260A JPS6462128A (en) | 1987-09-03 | 1987-09-03 | Ultrasonic pulse doppler blood flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62219260A JPS6462128A (en) | 1987-09-03 | 1987-09-03 | Ultrasonic pulse doppler blood flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6462128A true JPS6462128A (en) | 1989-03-08 |
Family
ID=16732735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62219260A Pending JPS6462128A (en) | 1987-09-03 | 1987-09-03 | Ultrasonic pulse doppler blood flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6462128A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257943A (en) * | 1989-03-31 | 1990-10-18 | Toshiba Corp | Ultrasonic diagnosing device |
| JP2002540831A (en) * | 1999-04-02 | 2002-12-03 | インスティチュート オブ クリティカル ケア メディスン | Evaluation of perfusion insufficiency by blood flow measurement |
| CN103690194A (en) * | 2013-12-17 | 2014-04-02 | 中国科学院深圳先进技术研究院 | Method and system for estimating flow velocity of blood flow based on broadband signal |
-
1987
- 1987-09-03 JP JP62219260A patent/JPS6462128A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257943A (en) * | 1989-03-31 | 1990-10-18 | Toshiba Corp | Ultrasonic diagnosing device |
| JP2002540831A (en) * | 1999-04-02 | 2002-12-03 | インスティチュート オブ クリティカル ケア メディスン | Evaluation of perfusion insufficiency by blood flow measurement |
| CN103690194A (en) * | 2013-12-17 | 2014-04-02 | 中国科学院深圳先进技术研究院 | Method and system for estimating flow velocity of blood flow based on broadband signal |
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