JPH02289230A - Pulse wave meter - Google Patents
Pulse wave meterInfo
- Publication number
- JPH02289230A JPH02289230A JP1110283A JP11028389A JPH02289230A JP H02289230 A JPH02289230 A JP H02289230A JP 1110283 A JP1110283 A JP 1110283A JP 11028389 A JP11028389 A JP 11028389A JP H02289230 A JPH02289230 A JP H02289230A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- pulse wave
- pulse
- period
- circuit
- 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
- 230000005856 abnormality Effects 0.000 claims abstract description 4
- 239000008280 blood Substances 0.000 claims description 5
- 210000004369 blood Anatomy 0.000 claims description 5
- 210000004204 blood vessel Anatomy 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 206010003119 arrhythmia Diseases 0.000 description 12
- 230000006793 arrhythmia Effects 0.000 description 12
- 230000006870 function Effects 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 4
- 208000024891 symptom Diseases 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、人体の循環機能の診断に用いろ脈波計に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a pulse wave meter used for diagnosing the circulatory function of the human body.
（従来の技術）
脈流波形（脈波）は血管中の血液量の増減によって生ず
る波動で、この波動の変化量を観察することで循環機能
の障害の有無の診断がなされる。(Prior Art) A pulsating flow waveform (pulse wave) is a wave generated by an increase or decrease in blood volume in a blood vessel, and by observing the amount of change in this wave, it is possible to diagnose whether there is a disorder in the circulatory function.
脈波計はこの脈波を計測表示する計器である。具体的に
は、例えば特開昭５７−９３０３６号公報に示されてい
るように、指先の血液１の変化を（ｂ先の容積変化とし
て検出し、検出した容積脈流を二回微分して加速度脈波
を得、この脈波をＣＲＴやＬＣＤで形成した画像表示装
置で表示して診断を行うようにしてなる。A pulse wave meter is an instrument that measures and displays this pulse wave. Specifically, as shown in Japanese Patent Application Laid-Open No. 57-93036, for example, the change in blood 1 at the fingertip is detected as a change in volume at the tip (b), and the detected volumetric pulsating flow is differentiated twice. Diagnosis is performed by obtaining an accelerated pulse wave and displaying this pulse wave on an image display device formed by a CRT or LCD.
（発明が解決しようとする課題）
前述した脈波の画像表示に於て、その表示形態は時間と
共に表示部分が移行するスクロール表示か或いは一画面
毎クリアされる画面切り換え表示が採用されている。こ
のため診断をなす医者は適当なところでストップスイッ
チを動作せしめて画像を静止させ静止画面に表示された
脈波波形を見て診断を下すものである。(Problems to be Solved by the Invention) In the pulse wave image display described above, a scroll display in which the display portion changes over time or a screen switching display in which each screen is cleared is adopted as the display form. For this reason, the doctor making the diagnosis operates a stop switch at an appropriate point to freeze the image and makes a diagnosis by looking at the pulse waveform displayed on a still screen.
しかし、血管中の血液量の変化に基づく脈波の周期の異
常即ち脈拍が異常となる不整脈は、常時不整脈の症状を
なしているものでなく、突発的に生じることが多く、前
記の脈波計での診断中に不整脈の症状が現れたとしても
、画面が動いているため不整脈の発生を発見し難くまた
発見したとしても、ストップ操作が遅れると画面上に不
整脈時の脈波を残すことができなくなってしまう。However, arrhythmia in which the pulse wave cycle is abnormal due to changes in blood volume in blood vessels, that is, the pulse rate is abnormal, does not always present as an arrhythmia symptom, but often occurs suddenly, and the above-mentioned pulse wave Even if symptoms of arrhythmia appear during diagnosis with the monitor, the screen is moving, making it difficult to detect the occurrence of an arrhythmia, and even if the arrhythmia is detected, the pulse wave at the time of the arrhythmia may remain on the screen if the stop operation is delayed. I become unable to do so.
（課題を解決するための手段）
本発明は前記課題を鑑み、不整脈の発生時に画像表示画
面が自動的に停止するようにしたものである。即ち本発
明に係る脈波計は、血管中の血液量の変化に基づく脈波
を経時的に画像表示する脈波計に於て、ＵＡ波の周期を
検出し、周期の異常検出時に画像表示を停止せしめる自
動停止機構を付設したことを特徴とするものである。(Means for Solving the Problems) In view of the above problems, the present invention is designed to automatically stop the image display screen when an arrhythmia occurs. That is, the pulse wave meter according to the present invention detects the period of the UA wave and displays the image when an abnormality in the period is detected in the pulse wave meter that displays images of pulse waves based on changes in blood volume in blood vessels over time. It is characterized by being equipped with an automatic stop mechanism that stops the operation.
（作 用）
脈波の周期を常時監視し、周期変動が予め定めた範囲を
超えたとさｌ１１市（６号を発し、画像表示を行う表示
部では前記の静止信号を受けると画像表示を静止させる
ものである。(Function) The period of the pulse wave is constantly monitored, and if the period fluctuation exceeds a predetermined range, a signal (6) is issued, and the display unit that displays the image freezes the image display when it receives the above static signal. It is something that makes you
（実施例） 次に本発明の実施例について説明する。(Example) Next, examples of the present invention will be described.
脈波計は従前と同様のセンサ部１．演算処理部２、表示
部３に、自動停止機構４を付設したものである。センサ
部１は光学的に指先の容積変化を感知するもので、この
変化を適宜な電気信号（？１先容積脈波）に変換して出
力をするものである。The pulse wave meter has the same sensor part 1 as before. An automatic stop mechanism 4 is attached to the arithmetic processing section 2 and the display section 3. The sensor unit 1 optically senses changes in the volume of the fingertip, and converts this change into an appropriate electrical signal (1-tip volume pulse wave) and outputs it.
演算処理部２ば前記容積脈波を二回微分すると共に、適
当な増幅をなした加速度脈波を得るものである。表示部
３はＣＲＴやＬＣＤで形成され画像表示機能を有するも
ので、前記演算処理部２からの信号ａ （加速度脈波）
を受け、これを画像表示すると共に、適宜な静止信号に
よって静止画像を得ろことができるものである。自動停
止機構は、ワンショット＠路４１．基準発振晋４２．Ｎ
ＯＴ回路４３、ＡＮＤ回ｉ＠ ４４．カウンタ４５．ラ
ッチ４６．減算Ｗ１４７から構成され、ワンショット回
ｆｉ４１は演算処理部２と接続して加速度脈波信号＆を
ワンショットパルス信号すに切や換えるものであり、基
準発ｔｌｓ昭４２は前記加速度脈波信号ａより周期が充
分小さい基準パルス信号Ｃを発生せしめるものである。The arithmetic processing section 2 differentiates the volume pulse wave twice and obtains an appropriately amplified accelerated pulse wave. The display section 3 is formed of a CRT or LCD and has an image display function, and receives the signal a (accelerated pulse wave) from the arithmetic processing section 2.
It is possible to receive this information, display it as an image, and obtain a still image using an appropriate still signal. The automatic stop mechanism is one-shot@ro41. Standard Oscillation Shin 42. N
OT circuit 43, AND times i@44. Counter 45. Latch 46. The one-shot signal fi41 is connected to the arithmetic processing unit 2 to switch the accelerated pulse wave signal & into the one-shot pulse signal, and the reference signal tls 1973 is the accelerated pulse wave signal a. This is to generate a reference pulse signal C having a sufficiently smaller period.
ＡＮＤ回ｌ５４４はＮＯＴ回路４３を介して逆転させた
ワンショットパルス信号すの逆転信号ｄと、基準発振器
４２からの基準パルス信号Ｃとを入力し、その出力はカ
ウンタ４５と接続する。カウンタ４５ばＡＮＤ回路４４
の出力パルス信号を、基準パルス信号Ｃの周期以上の非
入力時短にカウントするもので、カラン）−数をラッチ
４６と減算器４７に出力する。ラッチ４６は入力するカ
ウント数を順次メモリすると共に、先のメモリ数値を順
次減算器４７に出力する。The AND circuit 1544 inputs the inverted signal d of the one-shot pulse signal S which is reversed through the NOT circuit 43 and the reference pulse signal C from the reference oscillator 42, and its output is connected to the counter 45. Counter 45 AND circuit 44
The output pulse signal is counted in a non-input time that is longer than the period of the reference pulse signal C, and the count is output to the latch 46 and the subtracter 47. The latch 46 sequentially stores the input count number and sequentially outputs the previous memory value to the subtracter 47.
減算器４７はカウンタ４５からの入力数とラッチ４６か
らの入力数との差異を比較し、差異が予め定めた範囲を
超えたとき表示部３に静止イス号を発するものである。The subtracter 47 compares the difference between the number of inputs from the counter 45 and the number of inputs from the latch 46, and issues a static signal on the display section 3 when the difference exceeds a predetermined range.
次に前記実施例の動作について説明する。Next, the operation of the above embodiment will be explained.
脈波による循環機能の診断を行うため、被検者がセンサ
部１に指先を装着すると、指先の微小な容積変化をイス
帰化（容積脈波）し、更にこの容積変化を二回微分して
診断の基礎となる加速度脈波イス号ａｌｅる。表示部３
でこの加速度脈波信号８で脈波を画像表示し、脈波形状
で被検者の循環機能の健康状態をチエツクするものであ
る。またこれと同時に加速度脈波信号ａをワンショット
回路４１でワンショットパルスイス号しに変換し、更に
ＮＯＴ回１ｓ４３を通してワンショットパルス信号すの
逆転４２号ｄと基準パルス４１号ＣとをＡＮＤ回路４４
に入力せしめると、ＡＮＤ回路４４の出力は加速度脈波
の周期Ｔと対応する一群となった基準パルス（ス号Ｃ′
が順次出力される。このパルス信号Ｃは順次カウンタ４
５でそのパルス数がカラン）・されろ。In order to diagnose circulatory function using pulse waves, when the subject attaches his or her fingertip to the sensor unit 1, minute changes in the volume of the fingertip are naturalized (volume pulse wave), and this volume change is then differentiated twice. Acceleration pulse wave is the basis of diagnosis. Display section 3
The pulse wave is displayed as an image using this accelerated pulse wave signal 8, and the health condition of the circulatory function of the subject is checked based on the pulse wave shape. At the same time, the accelerated pulse wave signal a is converted into a one-shot pulse wave signal by the one-shot circuit 41, and further, the one-shot pulse signal reversal No. 42 d and the reference pulse No. 41 C are converted into an AND circuit through the NOT circuit 1s43. 44
, the output of the AND circuit 44 is a group of reference pulses (symbol C') corresponding to the period T of the accelerated pulse wave.
are output sequentially. This pulse signal C is sequentially sent to the counter 4.
At 5, the number of pulses is 5).
このカウント数は脈波における周期Ｔと対応する。This count corresponds to the period T in the pulse wave.
カウント数はラッチ４６と減算器４７に送られ、ラッチ
４Ｇでは一回前のカウント数を減算器４７に送るので、
減算器４７はカウンタ４５から当該時のカウント数（ａ
ｓのカウント数）とラッチ４６が当該時−回前のカウン
ト数（Ｃ＋のカウント数）とを入力するので、両者の差
異即ち脈波の周期変動（′ｒ１Ｔ２１と対応する値を求
めると共に、その差異が予め設定した所定の範囲以上の
とき、例えば０．２≧もので、静止信号が発せられると
、画像表示が停止するものである 。従って脈波の周期
を順次計測し、規則的な周期である正常脈においては診
断者（ま任意に停止してその脈波を観察して診断を下す
ことができると共に、スクロール表示や画面切換表示等
の動的画面において、突発的に生ずる脈波の周期の乱れ
即ち不整脈が生じたときは、減算器４７からの静止信号
が発せられ、画像表示が静止して不整脈発生時の脈波を
静止画像として表示するので不整脈時の脈波を確実に観
察することができるものである。尚、本発明は脈波計に
おいてその脈拍の周期を常時計測し、異常周期発生時に
画像表示を静止せしめれば良いもので、脈波計が加速度
脈波でなく、容積脈波を表示するものでも良く、また周
期の計測手段や異常１！認手段は特に前記実施例に特定
されるものでない。The count number is sent to the latch 46 and the subtracter 47, and the latch 4G sends the previous count number to the subtracter 47, so
The subtracter 47 extracts the current count number (a
Since the latch 46 inputs the current count number (count number of s) and the previous count number (count number of C+) at this time, the difference between the two, that is, the periodic fluctuation of the pulse wave ('r1T21), and the value corresponding to When the difference exceeds a predetermined range, for example 0.2 or more, and a stationary signal is issued, the image display stops.Therefore, the period of the pulse wave is sequentially measured, and the regular period is For normal pulses, the diagnostician can stop the pulse wave at will and make a diagnosis by observing the pulse wave. When a disturbance in the period, that is, an arrhythmia occurs, a stationary signal is issued from the subtractor 47, and the image display becomes static and the pulse wave at the time of the arrhythmia is displayed as a still image, making it possible to reliably observe the pulse wave at the time of the arrhythmia. In addition, the present invention only needs to constantly measure the pulse cycle in a pulse wave meter and freeze the image display when an abnormal cycle occurs. , a volume pulse wave may be displayed, and the period measuring means and the abnormality recognition means are not particularly specified in the above embodiments.
（発明の効果）
本発明は以上のように、脈拍の周期を常時計測すると共
に、異常周期を検出した時に脈波を表示する画像表示を
静止せしめるようにした脈波計で、突発的に生ずる不整
脈症状が現れたときに当該不整脈時の脈波を静止画像と
するもので、脈波計での循環機能の診断を効率的且つ確
実なものとしたものである。(Effects of the Invention) As described above, the present invention is a pulse wave meter that constantly measures the pulse cycle and freezes the image display displaying the pulse wave when an abnormal cycle is detected. When an arrhythmia symptom appears, the pulse wave at the time of the arrhythmia is taken as a still image, making the diagnosis of circulatory function using a pulse wave meter efficient and reliable.
第１図は本発明の実施例の簡便なブロック図、第２図は
各部の信号波形を示すものである。
】はセンサ部
２は演算処理部
３は表示部
４は自動停止機構
４１はワンショット回路
４２は基準発振型
４３はＮＯＴ回路
４４はＡＮＤ回路
４５はカウンタ
４６はラッチ
４７は減算器FIG. 1 is a simple block diagram of an embodiment of the present invention, and FIG. 2 shows signal waveforms at various parts. ] is the sensor section 2, the arithmetic processing section 3, the display section 4, the automatic stop mechanism 41, the one-shot circuit 42, the reference oscillation type 43, the NOT circuit 44, the AND circuit 45, the counter 46, the latch 47, and the subtracter.
Claims (1)
に画像表示する脈波計に於て、前記脈波の周期を検出し
、周期の異常検出時に前記画像表示を停止せしめる自動
停止機構を付設したことを特徴とする脈波計。(1) In a pulse wave meter that displays images over time of pulsating flow waveforms based on changes in blood volume in blood vessels, an automatic device that detects the cycle of the pulse wave and stops the image display when an abnormality in the cycle is detected. A pulse wave meter characterized by being equipped with a stop mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1110283A JPH02289230A (en) | 1989-04-28 | 1989-04-28 | Pulse wave meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1110283A JPH02289230A (en) | 1989-04-28 | 1989-04-28 | Pulse wave meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02289230A true JPH02289230A (en) | 1990-11-29 |
Family
ID=14531766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1110283A Pending JPH02289230A (en) | 1989-04-28 | 1989-04-28 | Pulse wave meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02289230A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997038626A1 (en) * | 1996-04-17 | 1997-10-23 | Seiko Epson Corporation | Arrhythmia detector |
| JP2015119741A (en) * | 2013-12-20 | 2015-07-02 | 日本光電工業株式会社 | Biological information display device |
-
1989
- 1989-04-28 JP JP1110283A patent/JPH02289230A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997038626A1 (en) * | 1996-04-17 | 1997-10-23 | Seiko Epson Corporation | Arrhythmia detector |
| US6095984A (en) * | 1996-04-17 | 2000-08-01 | Seiko Epson Corporation | Arrhythmia detecting apparatus |
| JP3635663B2 (en) * | 1996-04-17 | 2005-04-06 | セイコーエプソン株式会社 | Arrhythmia detector |
| JP2015119741A (en) * | 2013-12-20 | 2015-07-02 | 日本光電工業株式会社 | Biological information display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3978856A (en) | Heart beat waveform monitoring apparatus | |
| US5755669A (en) | Blood pressure monitoring apparatus | |
| KR960004298B1 (en) | Blood pressure measuring apparatus by extraction of blood flowing | |
| US4951680A (en) | Fetal monitoring during labor | |
| JP5369726B2 (en) | Pulsation detection device and pulsation detection method | |
| WO1995015117A1 (en) | Method and apparatus for detecting epileptic seizures | |
| JPH07313472A (en) | Blood pressure monitor device | |
| US5724980A (en) | Pulse diagnosis meter | |
| JPH02289230A (en) | Pulse wave meter | |
| JP4365020B2 (en) | Graph display method in blood pressure monitoring device | |
| EP0875200A1 (en) | Blood pressure monitoring apparatus | |
| JP2759189B2 (en) | Stress measuring device | |
| US6662043B1 (en) | Heart beat coincidence detection | |
| JP2002191569A (en) | Pulse counter and method for counting pulse | |
| JPH0938037A (en) | Eyeball movement counter type effective visual field measuring apparatus | |
| JPH0866377A (en) | Multi-functional sphygmomanometer | |
| JPH0824232A (en) | Apparatus for displaying degree of relaxation | |
| JPH03268738A (en) | Living body information detecting device | |
| JPH0642871B2 (en) | Tonometer | |
| JP2758101B2 (en) | Pulse wave measuring device | |
| KR20020085393A (en) | A detect method of electro-cardiogram using the electric tonometer | |
| KR0137409B1 (en) | The apparatus and method for testing pulsation by using television | |
| JPH01299531A (en) | Pulse wave meter | |
| JPH0154057B2 (en) | ||
| SU1708303A1 (en) | Device for observing and controlling the operator functional state |