JP2001008907A - Electric sphygmomanometer - Google Patents
Electric sphygmomanometerInfo
- Publication number
- JP2001008907A JP2001008907A JP11181524A JP18152499A JP2001008907A JP 2001008907 A JP2001008907 A JP 2001008907A JP 11181524 A JP11181524 A JP 11181524A JP 18152499 A JP18152499 A JP 18152499A JP 2001008907 A JP2001008907 A JP 2001008907A
- Authority
- JP
- Japan
- Prior art keywords
- pulse wave
- blood pressure
- value
- detecting means
- measurement
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、血圧を長時間にわ
たって連続的又は間欠的に測定する電子血圧計に関す
る。The present invention relates to an electronic sphygmomanometer for continuously or intermittently measuring blood pressure over a long period of time.
【０００２】[0002]
【従来の技術】従来、血圧を長時間にわたって連続的又
は間欠的に測定する携帯型電子血圧計としては、血圧の
みを測定するもの以外に、血圧とともに心電図、体位、
活動強度、体温、温度などを付帯情報として併せて測定
するものがある。2. Description of the Related Art Conventionally, as a portable electronic sphygmomanometer for continuously or intermittently measuring blood pressure over a long period of time, besides a device for measuring only blood pressure, an electrocardiogram, body position,
In some cases, activity intensity, body temperature, temperature, and the like are also measured as incidental information.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
ような電子血圧計では、 ｉ）血圧値に影響を与える精神的な状況が不明である。 ii）血圧値に影響を与える脈管系の状態に関する情報が
欠落する。 iii)心臓に対する負荷状況が不明である。 ため、データ解析時に測定された血圧値がどのような状
況での値かを、上記心電図、体位、活動量、体温などか
らだけでは特定できず、行動記録に依存する部分が大で
あり、被測定者自身が詳細に記録しなければならない、
という問題点がある。However, in the above-mentioned electronic sphygmomanometer, i) the mental condition affecting the blood pressure value is unknown. ii) Lack of information on vascular conditions affecting blood pressure values. iii) The state of load on the heart is unknown. Therefore, it is not possible to identify the state of the blood pressure value measured at the time of data analysis only from the above-mentioned electrocardiogram, body position, activity amount, body temperature, etc. The measurer must record in detail,
There is a problem.
【０００４】この問題点についてもう少し詳しく説明す
る。血圧を長時間にわたって連続的又は間欠的に測定す
る目的の１つには、血圧の日内変動を記録することにあ
る。しかし、日常の測定において、血圧値に影響を与え
る誤差要因がいくつかある。例えば、精神的緊張、環境
温度、活動強度、姿勢などである。従って、医師は、測
定された血圧値をそれらの状況と突き合わせて吟味する
必要がある。[0004] This problem will be described in more detail. One purpose of measuring blood pressure continuously or intermittently over an extended period of time is to record the diurnal variation of blood pressure. However, there are several error factors that affect blood pressure values in daily measurements. For example, mental tension, environmental temperature, activity intensity, posture, and the like. Therefore, the physician needs to examine the measured blood pressure values against those situations.
【０００５】付帯情報を収集するタイプの従来の携帯型
血圧計では、血圧の誤差要因を表す量として生理量では
なく物理量を用いている。例えば、従来の血圧計は血圧
値と併行して、温度、姿勢、動きなどのデータを測定し
ている。しかし、上記血圧の誤差要因の中には、生理量
でしか表現できないもの（例えば、精神的緊張）、生理
量と物理量の両方で吟味すべきもの（例えば、活動強
度）などもある。従って、血圧を長時間にわたって連続
的又は間欠的に測定するための従来の携帯型血圧計で
は、血圧値を十分に吟味するデータを収集しきれていな
いという欠点がある。In a conventional portable sphygmomanometer of the type that collects incidental information, a physical quantity is used instead of a physiological quantity as a quantity representing a blood pressure error factor. For example, a conventional sphygmomanometer measures data such as temperature, posture, and movement in parallel with a blood pressure value. However, among the error factors of the blood pressure, there are those that can be expressed only by physiological quantities (for example, mental tension) and those that should be examined using both physiological quantities and physical quantities (for example, activity intensity). Therefore, the conventional portable sphygmomanometer for continuously or intermittently measuring blood pressure for a long time has a drawback that data for sufficiently examining blood pressure values cannot be collected.
【０００６】一方、付帯情報を収集する他の方法とし
て、被測定者に行動を記録してもらう方法もあるが、こ
の方法では、行動・状況に関する内容を被測定者が記録
用紙に記入しなければならないので、 ａ）記述の手間が掛かる。 ｂ）記述する行為自体がストレス要因となる。 ｃ）記述内容に主観的評価が加わる。 などの問題点があり、精度の良い情報収集が難しい。On the other hand, as another method of collecting supplementary information, there is a method of having the subject record the behavior. In this method, however, the subject has to fill in the recording form with the contents concerning the behavior and the situation. A) It takes time to describe. b) The act of describing itself becomes a stress factor. c) Subjective evaluation is added to the description. It is difficult to collect accurate information.
【０００７】従って、本発明は、そのような問題点に着
目してなされたもので、血圧値が測定された状況を正確
に特定でき、血圧値と測定状況を関連付けて把握できる
電子血圧計を提供することを目的とする。Accordingly, the present invention has been made in view of such problems, and an electronic sphygmomanometer capable of accurately specifying a situation in which a blood pressure value is measured and capable of grasping a blood pressure value in association with a measurement situation is provided. The purpose is to provide.
【０００８】[0008]
【課題を解決するための手段】前記目的を達成するため
に、本発明の請求項１記載の電子血圧計は、生体の測定
部位を圧迫するためのカフと、カフ内を加圧・減圧する
圧力制御手段と、カフ内の圧力を検出する圧力検出手段
と、この圧力検出手段で得られた信号から血圧を算出す
る血圧算出手段とを備え、血圧を長時間にわたって連続
的又は間欠的に測定するものにおいて、前記カフに設け
られ、測定部位から脈波を検出する脈波検出手段と、こ
の脈波検出手段で得られた脈波形状の特徴量を算出する
脈波特徴量検出手段と、この脈波特徴量検出手段で得ら
れた脈波形状特徴量、前記血圧算出手段で得られた血圧
値、及び測定時刻を関連付けて記憶する記憶手段と、前
記血圧値と測定時刻と脈波形状特徴量を出力する出力手
段とを備えることを特徴とする。In order to achieve the above object, an electronic sphygmomanometer according to claim 1 of the present invention provides a cuff for pressing a measurement site of a living body, and pressurizes and depressurizes the inside of the cuff. Pressure control means, pressure detection means for detecting the pressure in the cuff, and blood pressure calculation means for calculating blood pressure from a signal obtained by the pressure detection means, and the blood pressure is measured continuously or intermittently over a long period of time. In the cuff, provided on the cuff, a pulse wave detecting means for detecting a pulse wave from a measurement site, a pulse wave feature amount detecting means for calculating a feature amount of the pulse wave shape obtained by the pulse wave detecting means, A storage unit for storing the pulse wave shape feature amount obtained by the pulse wave feature amount detection unit, the blood pressure value obtained by the blood pressure calculation unit, and the measurement time in association with each other; Output means for outputting a feature quantity And it features.
【０００９】この電子血圧計は、長時間にわたって脈波
形状特徴量、血圧値及び測定時刻の３つのデータを連続
的又は間欠的に測定すると共に、それらを関連付けて記
憶するので、医者は血圧値に影響を与える生理的状態を
容易に推定することができ、血圧値に生理的状態を判断
材料に加えることで、血圧診断の精度向上を図ることが
できる。This electronic sphygmomanometer continuously or intermittently measures the three data of the pulse waveform characteristic amount, the blood pressure value, and the measurement time over a long period of time and stores them in association with each other. It is possible to easily estimate a physiological condition that affects the blood pressure, and to improve the accuracy of blood pressure diagnosis by adding the physiological condition to the blood pressure value.
【００１０】なお、本発明において、脈波検出手段とし
ては、カフ圧力センサ、光電脈波センサ、インピーダン
スセンサ、ひずみセンサなどを使用すればよい。In the present invention, a cuff pressure sensor, a photoelectric pulse wave sensor, an impedance sensor, a strain sensor, or the like may be used as the pulse wave detecting means.
【００１１】[0011]
【発明の実施の形態】以下、本発明を実施の形態に基づ
いて説明する。その一実施形態に係る電子血圧計の概略
外観図を図１〔カフの斜視図（ａ）、本体の斜視図
（ｂ）〕に示す。この電子血圧計は、血圧を長時間にわ
たって連続的又は間欠的に測定するもので、生体の測定
部位を圧迫するためのカフ１０と、カフ１０が接続され
る本体２０とで構成される。カフ１０は空気を送気・排
気するためのチューブ１１を有し、チューブ１１は本体
２０の接続口２２に着脱可能に接続される。本体２０
は、最高血圧（ＳＹＳ）、最低血圧（ＤＩＡ）、心拍数
（ＨＲ）等を表示する表示部２１と、カフ１０のチュー
ブ１１を接続する接続口２２と、電源ＯＮ／ＯＦＦを兼
ねる測定開始スイッチ２３と、強度な運動をした直後
等、主観的に安静状態でないと分かるような特別な事象
や、医者や看護士等の医療従事者から具体的な指示に従
い、動悸の発生時等の特別な生理的状態の発生を装着者
の意志で記録するためのイベントスイッチ２４とを有す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments. A schematic external view of the electronic sphygmomanometer according to the embodiment is shown in FIG. 1 [a perspective view of the cuff (a) and a perspective view of the main body (b)]. This electronic sphygmomanometer measures the blood pressure continuously or intermittently for a long time, and includes a cuff 10 for compressing a measurement site of a living body and a main body 20 to which the cuff 10 is connected. The cuff 10 has a tube 11 for sending and discharging air, and the tube 11 is detachably connected to a connection port 22 of the main body 20. Body 20
Is a display unit 21 for displaying systolic blood pressure (SYS), diastolic blood pressure (DIA), heart rate (HR), etc., a connection port 22 for connecting the tube 11 of the cuff 10, and a measurement start switch serving also as a power ON / OFF. 23 and special events such as immediately after intense exercise, such as when the subject is not in a resting state subjectively, or when specific palpitations occur according to specific instructions from medical staff such as doctors and nurses An event switch 24 for recording occurrence of a physiological condition at the will of the wearer.
【００１２】この電子血圧計の構成例を図２にブロック
図で示す。この電子血圧計は、ＣＰＵ３０と、カフ１０
内を加圧・減圧する圧力制御部（圧力制御手段）３１
と、カフ１０内の圧力を検出する圧力センサ（圧力検出
手段）３２と、カフ１０に設けられ、測定部位から脈波
として光電脈波を検出する脈波センサ（脈波検出手段）
３３と、同じくカフ１０に設けられ、生体の動き、体
位、温度等を検出する各種センサ３４と、血圧値や脈波
形状特徴量などを表示する表示装置（出力手段、本体２
０の表示部２１に相当）３５と、関連付けられた脈波形
状特徴量・血圧値・測定時刻や脈波形状特徴量の基準値
などを記憶する記憶装置（記憶手段）３６と、当該血圧
計を外部装置（例えばパソコン）で一括制御するための
外部インタフェース３７と、電源３８とを備える。FIG. 2 is a block diagram showing a configuration example of the electronic sphygmomanometer. This electronic sphygmomanometer includes a CPU 30 and a cuff 10.
Pressure control unit (pressure control means) 31 for pressurizing and depressurizing the inside
A pressure sensor (pressure detecting means) 32 for detecting the pressure in the cuff 10; and a pulse wave sensor (pulse wave detecting means) provided on the cuff 10 and detecting a photoelectric pulse wave as a pulse wave from a measurement site.
33, various sensors 34 which are also provided on the cuff 10 and detect the movement, body position, temperature, etc. of the living body, and a display device (output means, main body 2
0, a display unit 21) 35, a storage device (storage means) 36 for storing associated pulse wave shape feature values, blood pressure values, measurement times, reference values of pulse wave shape feature values, and the like, An external interface 37 for collectively controlling the external devices (for example, a personal computer) and a power supply 38 are provided.
【００１３】ＣＰＵ３０は、圧力制御部３１、表示装置
３５などを制御する機能、圧力センサ３２で得られた信
号から血圧を算出する血圧算出機能、脈波センサ３３で
得られた脈波形状の特徴量を算出する脈波特徴量検出機
能、脈波形状特徴量と記憶装置３６に記憶された脈波形
状特徴量の基準値とを比較し、この比較結果と比較結果
に基づいて定める以降の血圧測定動作との関連付けを設
定・記憶し、比較結果と関連付けに基づいて脈波検出後
の血圧測定を制御する測定シーケンス制御機能を有す
る。The CPU 30 has a function of controlling the pressure control unit 31 and the display device 35, a blood pressure calculation function of calculating a blood pressure from a signal obtained by the pressure sensor 32, and features of a pulse wave shape obtained by the pulse wave sensor 33. A pulse wave feature value detection function for calculating the amount, a pulse wave shape feature value is compared with a reference value of the pulse wave shape feature value stored in the storage device 36, and a blood pressure determined thereafter based on the comparison result and the comparison result It has a measurement sequence control function of setting and storing an association with a measurement operation and controlling blood pressure measurement after pulse wave detection based on the comparison result and the association.
【００１４】次に、上記のように構成した電子血圧計の
動作について、図３のフロー図を参照して説明する。ま
ず、ステップ（以下、ＳＴと略す）１において、脈波セ
ンサ３３により脈波が測定され、得られた脈波波形から
脈波形状特徴量がＣＰＵ３０で算出され（ＳＴ２）、算
出された脈波形状特徴量が記憶装置３６に記憶される
（ＳＴ３）。Next, the operation of the electronic sphygmomanometer configured as described above will be described with reference to the flowchart of FIG. First, in step (hereinafter abbreviated as ST) 1, a pulse wave is measured by the pulse wave sensor 33, and a pulse wave shape feature is calculated by the CPU 30 from the obtained pulse wave waveform (ST2), and the calculated pulse wave is calculated. The shape feature is stored in the storage device 36 (ST3).
【００１５】次いで、通常の血圧測定が行われ（ＳＴ
４）、最高血圧及び最低血圧が上記脈波形状特徴量と共
に測定時刻と関連付けて記憶装置３６に記憶される（Ｓ
Ｔ５）。３つの関連データが記憶されたら、次の測定時
刻まで待機し（ＳＴ６）、測定時刻になるたびに同様の
処理が繰り返され、各測定時刻ごとに血圧値、脈波形状
特徴量が関連付けて記憶される。Next, a normal blood pressure measurement is performed (ST
4), the systolic blood pressure and the diastolic blood pressure are stored in the storage device 36 in association with the measurement time together with the pulse wave shape feature amount (S).
T5). After the three related data are stored, the process waits until the next measurement time (ST6), and the same processing is repeated each time the measurement time comes, and the blood pressure value and the pulse wave shape feature amount are stored in association with each measurement time. Is done.
【００１６】この電子血圧計によると、血圧値と脈波形
状特徴量が測定時刻と併せて記憶されるので、後で医者
が記録データを用いて診断する際、血圧値と、血圧値が
測定されたときの心臓及び脈管系の機能・状態を反映す
る情報が提供されるため、医者は得られた血圧値が適切
な状態で測定されたものかどうかを判断することがで
き、被測定者に対して正確なアドバイスを行うことがで
きる。According to this electronic sphygmomanometer, since the blood pressure value and the pulse wave shape feature amount are stored together with the measurement time, the blood pressure value and the blood pressure value are measured when the doctor later makes a diagnosis using the recorded data. Information reflecting the function and condition of the heart and vascular system at the time of the measurement is provided, so that the doctor can determine whether the obtained blood pressure value has been measured in an appropriate state, and Can give accurate advice to the person.
【００１７】なお、図３のフロー図において、血圧測定
は従来どおりに行えばよい。例えば、血圧をカフの減圧
過程で測定する場合は、カフを一旦最高血圧以上に加圧
し、加圧後、一定圧で減圧していき、その減圧過程での
脈波出現点を最高血圧、脈波消失点を最低血圧とする。
勿論、カフの加圧過程で血圧を測定してもよい。別実施
形態に係る電子血圧計の動作フロー図を図４に示す。こ
の実施形態は、脈波形状特徴量と記憶装置３６に記憶さ
れた脈波形状特徴量の基準値とを比較し、この比較結果
と比較結果に基づいて定める以降の血圧測定動作との関
連付けを設定・記憶し、比較結果と関連付けに基づいて
脈波検出後の血圧測定を制御（実行・延期・中止など）
する場合である。In the flowchart of FIG. 3, the blood pressure measurement may be performed in a conventional manner. For example, when measuring blood pressure during the depressurization process of the cuff, the cuff is once pressurized above the systolic blood pressure, and then depressurized at a constant pressure after the pressurization. The wave vanishing point is defined as the diastolic blood pressure.
Of course, the blood pressure may be measured during the process of pressurizing the cuff. FIG. 4 shows an operation flowchart of the electronic sphygmomanometer according to another embodiment. This embodiment compares the pulse wave shape feature value with the reference value of the pulse wave shape feature value stored in the storage device 36, and associates the comparison result with a subsequent blood pressure measurement operation determined based on the comparison result. Set and memorize and control blood pressure measurement after pulse wave detection based on comparison result and association (execution, postponement, cancellation, etc.)
This is the case.
【００１８】まず、図３のフロー図と同様に、脈波が測
定され（ＳＴ３１）、得られた脈波波形から脈波形状特
徴量が算出される（ＳＴ３２）。次いで、算出された脈
波形状特徴量と、予め記憶装置３６に記憶された基準値
とが比較され（ＳＴ３３）、特徴量が基準値以上である
場合には、血圧を測定するには不適切な状態であると判
断し、所定時間待機し（ＳＴ３４）、所定時間経過後に
脈波測定と脈波形状特徴量の算出が再度行われる。例え
ば、極度に緊張している状態のときは、脈波波形の特徴
量が大きくなるので、そのような緊張状態にあるときに
は、血圧測定は不適切であると判断し、改めて脈波測定
をし直すわけである。First, similarly to the flow chart of FIG. 3, a pulse wave is measured (ST31), and a pulse waveform feature is calculated from the obtained pulse waveform (ST32). Next, the calculated pulse wave shape feature value is compared with a reference value stored in the storage device 36 in advance (ST33). If the feature value is equal to or more than the reference value, it is inappropriate to measure the blood pressure. And waits for a predetermined time (ST34), and after the lapse of the predetermined time, the pulse wave measurement and the calculation of the pulse wave shape feature amount are performed again. For example, when the patient is extremely nervous, the characteristic amount of the pulse waveform becomes large.In such a nervous state, the blood pressure measurement is determined to be inappropriate, and the pulse wave measurement is performed again. It is fixed.
【００１９】ＳＴ３３で、特徴量が基準値よりも小さい
場合は、正常な状態（安静状態）で脈波測定が実施され
たものと判断し、算出された脈波形状特徴量が記憶装置
３６に記憶される（ＳＴ３５）。そして、通常の血圧測
定が行われ（ＳＴ３６）、血圧値が脈波形状特徴量及び
測定時刻と関連付けて記憶装置３６に記憶される（ＳＴ
３７）。その後、次の測定時刻まで待機し（ＳＴ３
８）、各測定時刻ごとに血圧値、脈波形状特徴量が関連
付けて記憶される。In ST33, if the characteristic amount is smaller than the reference value, it is determined that the pulse wave measurement has been performed in a normal state (resting state), and the calculated pulse wave shape characteristic amount is stored in the storage device 36. It is stored (ST35). Then, normal blood pressure measurement is performed (ST36), and the blood pressure value is stored in the storage device 36 in association with the pulse wave shape feature value and the measurement time (ST36).
37). After that, it waits until the next measurement time (ST3).
8) The blood pressure value and the pulse wave shape feature amount are stored in association with each other at each measurement time.
【００２０】図４に示すような動作は、血圧を長時間に
わたって連続的又は間欠的に測定する目的によっては、
血圧値の誤差要因を極力除いて血圧測定する必要がある
場合（例えば血圧降圧剤等の投薬効果を確認する場合）
に特に有効である。このような場合、測定した脈波から
脈波形状特徴量を算出し、血圧値に影響を与え得る生理
的状態の程度によって血圧測定動作を制御（実行・延期
・中止など）することで、血圧値への誤差要因の影響を
低減することができる。The operation as shown in FIG. 4 depends on the purpose of continuously or intermittently measuring the blood pressure over a long period of time.
When it is necessary to measure the blood pressure while removing the error factors of the blood pressure value as much as possible (for example, when confirming the effect of medication such as a blood pressure lowering agent)
It is especially effective for In such a case, the pulse wave shape feature quantity is calculated from the measured pulse wave, and the blood pressure measurement operation is controlled (executed, postponed, stopped, etc.) according to the degree of the physiological state that can affect the blood pressure value, thereby obtaining the blood pressure. The influence of the error factor on the value can be reduced.
【００２１】例えば、脈波形状特徴量から極度に緊張し
ていると判断されるときには、血圧測定を一時延期し、
脈波形状特徴量から緊張が緩和したと判断される時点で
血圧測定を実行するようにする。また、脈波形状特徴量
から身体活動強度が上がっていると判断されるときも、
血圧測定を一時延期し、脈波形状特徴量から身体活動強
度が通常レベルに戻ったと判断される時点で血圧測定を
実行するようにすることもできる。このような動作にす
ることで、血圧値への誤差要因の影響を低減することが
でき、血圧の日内変動をより正確に捉えることができる
ようになる。For example, when it is determined that the patient is extremely nervous from the pulse wave shape feature, the blood pressure measurement is temporarily postponed,
The blood pressure measurement is performed at the time when it is determined from the pulse wave shape feature that the tension has been alleviated. Also, when it is determined that the physical activity intensity is increased from the pulse wave shape feature value,
The blood pressure measurement may be temporarily postponed, and the blood pressure measurement may be performed when it is determined that the physical activity intensity has returned to the normal level from the pulse wave shape feature value. With such an operation, the influence of the error factor on the blood pressure value can be reduced, and the daily fluctuation of the blood pressure can be more accurately captured.
【００２２】更に別実施形態に係る電子血圧計の動作フ
ロー図を図５に示す。この実施形態では、圧力制御部３
１は、脈波センサ３３が脈波を検出する際のカフ１０に
よる押圧が脈波測定部位の最低血圧値以下となるよう
に、脈波センサ３３が測定する測定部位に対するカフ１
０による押圧を制御する場合である。これを行う理由は
次のとおりである。FIG. 5 shows an operation flow chart of an electronic sphygmomanometer according to still another embodiment. In this embodiment, the pressure control unit 3
1 is a cuff 1 for the measurement site measured by the pulse wave sensor 33 such that the pressure applied by the cuff 10 when the pulse wave sensor 33 detects a pulse wave is equal to or less than the minimum blood pressure value of the pulse wave measurement site.
This is a case where the pressing by 0 is controlled. The reasons for doing this are as follows.
【００２３】つまり、脈波計測を行う際に、脈波測定部
位の押圧を脈波測定部位の最高血圧値未満で最低血圧値
よりも高く設定すると（最低血圧値＜押圧＜最高血圧
値）、押圧によって脈波波形が変形する。従って、脈波
計測を行う際に、脈波測定部位の押圧を最低血圧値以下
に設定することで、押圧による脈波波形の変形を避ける
ことができ、脈波形状特徴量の算出精度が向上する。In other words, when performing the pulse wave measurement, if the pressure of the pulse wave measurement site is set to be lower than the systolic blood pressure value of the pulse wave measurement site and higher than the diastolic blood pressure value (diastolic blood pressure value <pressed pressure> systolic blood pressure value), The pulse waveform is deformed by the pressing. Therefore, when performing pulse wave measurement, by setting the pressure on the pulse wave measurement site to be equal to or lower than the minimum blood pressure value, deformation of the pulse wave waveform due to the pressure can be avoided, and the calculation accuracy of the pulse wave shape feature amount is improved. I do.
【００２４】具体的に脈波測定部位の押圧を最低血圧値
以下に設定する方法としては、 １）脈波測定部位の最低血圧値に所定比率（例えば８０
％）を掛けた値を採用する方法 ２）脈波測定部位の最低血圧値から所定圧力（例えば１
０ｍｍＨｇ）を引いた値を採用する方法などが考えられ
る。Specifically, the method of setting the pressure of the pulse wave measurement site to be equal to or lower than the diastolic blood pressure value is as follows: 1) The predetermined ratio (for example, 80)
%) A value obtained by multiplying the predetermined pressure (for example, 1) from the diastolic blood pressure value of the pulse wave measurement site
A method of adopting a value obtained by subtracting 0 mmHg) is conceivable.
【００２５】但し、血圧測定前に脈波を測定する場合、
最低血圧値を知ることができない。しかし、この場合、
最近の最低血圧値又は複数回の最低血圧値の平均値など
を代用すればよい。図５のフロー図において、まずカフ
が加圧され（ＳＴ１１）、カフ圧が所定圧力（最低血圧
値以下）に達したか否かが判定される（ＳＴ１２）。カ
フ圧が所定圧力に達したら、加圧が停止し（ＳＴ１
３）、それ以降の処理（ＳＴ１４〜ＳＴ２１）は、図４
のフロー図と同様の処理が行われる。However, when measuring the pulse wave before measuring the blood pressure,
I can't know my diastolic blood pressure. But in this case,
A recent diastolic blood pressure value or an average value of a plurality of diastolic blood pressure values may be used instead. In the flowchart of FIG. 5, first, the cuff is pressurized (ST11), and it is determined whether or not the cuff pressure has reached a predetermined pressure (not more than the minimum blood pressure value) (ST12). When the cuff pressure reaches a predetermined pressure, the pressurization is stopped (ST1).
3) and the subsequent processes (ST14 to ST21) are shown in FIG.
The same processing as in the flowchart of FIG.
【００２６】次に、脈波形状特徴量の算出について具体
的に説明する。算出方法は種々あるが、まず一例として
図６に示すように、脈波センサ３３で得られた脈波（上
図）を二次微分して二次微分脈波（加速度脈波、下図）
を得、この二次微分脈波において、脈波出現点に対応す
る最大点をａ、最小点をｂ、また脈波中における前隆波
出現点に対応する最大点をｃ、最小点をｄとすると、ｂ
／ａ、ｄ／ａ又は｛（−ｂ＋ｃ＋ｄ）／ａ｝×１００、
或いはこれらの関数を用いて脈波形状特徴量を算出す
る。ｂ／ａ、ｄ／ａ又は｛（−ｂ＋ｃ＋ｄ）／ａ｝×１
００は、生体の循環状況を表す指標とされており、例え
ばこれらの特徴量を血圧値と共に記憶し、治療処置の前
後で比較することで、治療方法、投薬の種類、投薬量が
適正かどうかの判断情報として有用となる。Next, the calculation of the pulse wave shape feature will be specifically described. There are various calculation methods. First, as shown in FIG. 6 as an example, the pulse wave (upper figure) obtained by the pulse wave sensor 33 is secondarily differentiated to obtain a second derivative pulse wave (acceleration pulse wave, lower figure).
In this second derivative pulse wave, the maximum point corresponding to the pulse wave appearance point is a, the minimum point is b, the maximum point corresponding to the anterior ridge wave appearance point in the pulse wave is c, and the minimum point is d. Then, b
/ A, d / a or {(−b + c + d) / a} × 100,
Alternatively, a pulse wave shape feature value is calculated using these functions. b / a, d / a or {(−b + c + d) / a} × 1
00 is an index indicating the circulatory state of the living body. For example, by storing these characteristic amounts together with the blood pressure value and comparing before and after the therapeutic treatment, the therapeutic method, the type of medication, whether the dosage is appropriate or not. This is useful as judgment information.
【００２７】また、血管緊張を反映するパラメータを用
いて脈波形状特徴量を算出することも可能である。血管
緊張は、例えば精神的緊張や寒冷暴露によって起こり、
結果として血圧が上昇する。このような状況では、循環
器系機能異常、器質異常を伴わなくても血圧が上昇する
ため、このときに測定された血圧値を診断に用いるのは
避けるべきである。しかしながら、逆の意味では、血管
緊張状態を反映する脈波形状特徴量を血圧値と併せて記
憶することは診断上有用である。It is also possible to calculate a pulse wave shape feature using a parameter that reflects vascular tone. Vascular tone occurs, for example, due to mental tension or cold exposure,
As a result, blood pressure rises. In such a situation, the blood pressure rises without any circulatory dysfunction or organic abnormality, so that the blood pressure value measured at this time should be avoided for diagnosis. However, in the opposite sense, it is useful for diagnosis to store the pulse wave shape feature amount reflecting the vascular tone state together with the blood pressure value.
【００２８】この血管緊張を反映するパラメータとして
は、具体的には図６の二次微分脈波における前記前隆波
出現点に対応する最大点ｃ、最小点ｄ、及び脈波におけ
る前隆波波高Ｂ4 を用い、（ｃ−ｄ）／Ｂ4 の関数を用
いる。この関数を用いる理由は次のとおりである。血管
緊張状態では、末梢血管収縮に伴う脈波反射強度の上昇
によって、反射波振幅が増大する。従って、反射波強度
の反映する二次微分波形中のｃ，ｄ点のレベル差を用い
ることができる。しかし、ｃ，ｄ点のレベル差だけで
は、血管緊張の影響の他に、脈波振幅変動の影響も受け
てしまうので、脈波振幅の影響を除去するため、ｃ，ｄ
点のレベル差を脈波の前隆波波高Ｂ4 で正規化すること
で、血管緊張状態を精度良く数値化できる。As the parameters reflecting the vascular tone, specifically, the maximum point c and the minimum point d corresponding to the appearance point of the anterior ridge in the second derivative pulse wave of FIG. 6, and the anterior ridge in the pulse wave using wave height B 4, using the function of (c-d) / B 4 . The reason for using this function is as follows. In the vascular tone state, the amplitude of the reflected wave increases due to an increase in pulse wave reflection intensity accompanying peripheral vasoconstriction. Therefore, the level difference between the points c and d in the second derivative waveform reflected by the reflected wave intensity can be used. However, only the level difference between the points c and d is affected not only by the blood vessel tension but also by the pulse wave amplitude fluctuation.
By normalizing the level difference of the point in front Takashi wave height B 4 of the pulse wave, it can accurately quantify vascular tension.
【００２９】他方、全血管抵抗を反映するパラメータを
用いて脈波形状特徴量を算出することも可能である。全
血管抵抗を反映するパラメータとしては、本願出願人の
先願に係る特願平１０−２０４６２２号「心血管系診断
装置」に記載された末梢血管抵抗状態を示す指標を使用
することができる。この指標は、血圧Ｐ−心機能ＣＯの
関係における回帰直線ＣＯ＝ａ1 ・Ｐ＋ｂ1 、血圧Ｐ−
末梢血管抵抗Ｒの関係における回帰直線Ｒ＝ａ2 ・Ｐ＋
ｂ2 、心機能の寄与度ＣCO＝ａ1 、末梢血管抵抗の寄与
度ＣR ＝Ｋ・ａ2 （ａ1 ，ｂ1 ，ａ2 ，ｂ2 ，Ｋ：係
数）とすると、血圧上昇に対する末梢血管抵抗の寄与率
は、ＣR ／（ＣCO＋ＣR ）〔％〕で求められるものであ
る。On the other hand, it is also possible to calculate a pulse wave shape feature using a parameter reflecting the total blood vessel resistance. As a parameter reflecting the total vascular resistance, an index indicating a peripheral vascular resistance state described in Japanese Patent Application No. 10-204622 “Cardiovascular System Diagnosis Apparatus” according to the earlier application of the present applicant can be used. This index is represented by a regression line CO = a 1 · P + b 1 in the relationship between blood pressure P and cardiac function CO, and blood pressure P-
Regression line R = a 2 · P + in relation to peripheral vascular resistance R
b 2 , contribution of cardiac function C CO = a 1 , contribution of peripheral vascular resistance C R = K · a 2 (a 1 , b 1 , a 2 , b 2 , K: coefficient): The contribution rate of peripheral vascular resistance is determined by C R / (C CO + C R ) [%].
【００３０】末梢血管抵抗をパラメータとして用いる理
由は、次のとおりである。運動、活動、行動によって血
液循環が通常よりも増加しているような状況では、血圧
値は幾つかの要因の影響を受ける。例えば、下記のよう
な状況が発生している。 １）骨格筋の末梢抵抗低下に伴い、全血管抵抗が低下
し、血圧を下げる方向に作用する。 ２）心拍出量が増加し、血圧を上げる方向に作用する。 ３）脈拍数が増加し、血圧を上げる方向に作用する。 このような状況では、循環器系機能異常・器質異常以外
の影響も血圧値に影響するので、血圧値と併せて循環の
状況、例えば全血管抵抗を反映する量や脈拍数を記録す
ることは診断上有用であるからである。The reason for using the peripheral vascular resistance as a parameter is as follows. In situations where exercise, activity, and behavior increase blood circulation more than normal, blood pressure values are affected by several factors. For example, the following situation has occurred. 1) As the peripheral resistance of the skeletal muscle decreases, the total vascular resistance decreases and acts in the direction of lowering the blood pressure. 2) The cardiac output increases and acts in the direction of increasing blood pressure. 3) The pulse rate increases and acts in the direction of increasing blood pressure. In such a situation, effects other than circulatory system abnormalities / organic abnormalities also affect the blood pressure value.Therefore, it is not possible to record the circulatory status together with the blood pressure value, for example, the amount or pulse rate reflecting total vascular resistance. This is because it is useful for diagnosis.
【００３１】この全血管抵抗を反映する別のパラメータ
としては、例えば収縮期後期の下り傾斜を用いる。これ
は、具体的には図７の脈波中における大動脈弁閉鎖痕の
起始点Ｃと起始点Ｃ後の最大点Ｄとの血圧差を脈波中の
前隆波波高Ｂ4 で正規化した量の関数〔（Ｃ−Ｄ）／Ｂ
4 〕である。これは、運動、活動、行動による骨格筋の
末梢抵抗低下に伴って血管抵抗の低下が起こり、これで
心臓の収縮期後期の大動脈内血液量が減少し、弾性エネ
ルギーとして貯えられる圧が低下し、血圧波形の下り傾
斜が急峻化するのに対し、心臓は心拍数増加により平均
血圧を維持するからである。As another parameter that reflects the total vascular resistance, for example, a downward slope in the late systolic period is used. Specifically, the blood pressure difference between the starting point C of the aortic valve closing scar and the maximum point D after the starting point C in the pulse wave in FIG. 7 is normalized by the front ridge wave height B 4 in the pulse wave. Function of quantity [(CD) / B
4 ]. This is due to a decrease in vascular resistance associated with a decrease in peripheral resistance of skeletal muscle due to exercise, activity, and behavior, which reduces the amount of blood in the aorta during late systole of the heart and reduces the pressure stored as elastic energy. This is because, while the downward slope of the blood pressure waveform becomes steep, the heart maintains the average blood pressure by increasing the heart rate.
【００３２】ところで、前記したとおり、脈波形状特徴
量と脈波形状特徴量の基準値との比較結果は表示装置３
５（本体２０の表示部２１）に表示されるが、これの利
点について説明する。前記図４や図５のフロー図に示す
動作を備える電子血圧計によると、定期的な血圧測定時
刻に比較結果によっては血圧測定が延期される場合があ
る。このような場合、比較結果を表示部２１に表示する
ことによって、被測定者に測定が延期された状況を把握
させ、延期の要因を取り除くように働きかけることが可
能となる。As described above, the result of comparison between the pulse wave shape feature value and the reference value of the pulse wave shape feature value is displayed on the display device 3.
5 (the display unit 21 of the main body 20), the advantage of which will be described. According to the electronic sphygmomanometer having the operations shown in the flowcharts of FIGS. 4 and 5, the blood pressure measurement may be postponed at regular blood pressure measurement times depending on the comparison result. In such a case, by displaying the comparison result on the display unit 21, it becomes possible for the subject to grasp the situation where the measurement has been postponed and to work to remove the cause of the postponement.
【００３３】例えば、図８に本体２０の表示部２１の表
示画面を示すように、図８の（ａ）において、脈波測定
時に“脈波測定中”が表示され、そのときに過度の緊張
によって血圧測定が延期される場合、図８の（ｂ）のよ
うに“測定延期”だけでなく、“リラックス！”も表示
されることで、被測定者は測定が延期になったことだけ
でなく、なぜ延期になったかの要因を知り、その要因を
取り除くための対処をすることが可能となり、次回の測
定を過度に緊張しないで実施できるように心構えができ
る。この結果、再度の測定延期を防止できる可能性が高
くなる。For example, as shown in the display screen of the display unit 21 of the main body 20 in FIG. 8, "pulse wave measurement is being performed" is displayed at the time of pulse wave measurement in FIG. When the blood pressure measurement is postponed, not only “Measurement postponement” but also “Relax!” Is displayed as shown in FIG. 8B, so that the subject only needs to postpone the measurement postponement. In other words, it is possible to know the cause of the postponement, take measures to eliminate the cause, and prepare for the next measurement without excessive tension. As a result, the possibility of preventing the measurement from being postponed again increases.
【００３４】勿論、表示部２１に表示される内容は適宜
変更すればよく、緊張を和らげる場合は、“深呼吸して
ください”でもよい。更には、血圧値と併せて比較結果
を記憶媒体に出力する構成でもよい。これは、脈波形状
特徴量自体が記憶されるよりも、脈波形状特徴量の基準
値との比較結果、それも異常と判定された比較結果のみ
を記憶する方が、医師が正確な診断を早く行え、診断に
要する時間を短縮でき、診断をより効率化することがで
きるからである。Of course, what is displayed on the display unit 21 may be changed as appropriate, and "to take a deep breath" may be used to ease the tension. Further, the configuration may be such that the comparison result is output to a storage medium together with the blood pressure value. This is because the doctor can obtain a more accurate diagnosis by storing only the comparison result of the pulse wave shape feature value with the reference value and the comparison result determined to be abnormal, rather than storing the pulse wave shape feature value itself. This can be performed quickly, the time required for diagnosis can be reduced, and the diagnosis can be made more efficient.
【００３５】なお、図３〜図５の動作フロー図は、血圧
を間欠的に測定する場合であるが、連続的に測定する場
合でもよい。但し、連続測定では、血圧値、脈波形状特
徴量及び測定時刻を関連付けて連続記憶すればよい。The operation flowcharts shown in FIGS. 3 to 5 are for the case where the blood pressure is measured intermittently, but may be for the case where the blood pressure is measured continuously. However, in the continuous measurement, the blood pressure value, the pulse wave shape feature amount, and the measurement time may be continuously stored in association with each other.
【００３６】[0036]
【発明の効果】本発明の電子血圧計は、以上説明したよ
うに構成されるため、下記の効果を有する。 （１）長時間にわたって脈波特徴量、血圧値及び測定時
刻の３つのデータが連続的又は間欠的に測定されると共
に、それらが関連付けて記憶されるので、医者は血圧値
に影響を与える生理的状態を容易に推定することがで
き、血圧値に生理的状態を判断材料に加えることで、血
圧診断の精度向上を図ることができる。 （２）脈波波形に含まれる情報（脈管系、精神系）が新
たに得られる。 （３）血圧値と脈波形状特徴量を照合することで、血圧
値の過大評価、過小評価を防ぐことができる。 （４）請求項２の構成によれば、脈波形状特徴量から血
圧値に対する他の誤差要因の影響が大きいと判断される
場合には、血圧測定を延期することができ、より正確な
血圧の日内変動特性を得ることができる。 （５）請求項３の構成によれば、カフの押圧による脈波
の波形変形を防ぐことができ、脈波形状特徴量の算出精
度が向上する。 （６）請求項４の構成によれば、血圧値と脈波形状特徴
量を治療処置の前後で比較することで、例えば治療方法
・投薬の種類・投薬量が適正かどうか判断することがで
きる。 （７）請求項５の構成によれば、測定された血圧値がど
のような精神的状況で測定されたのかを把握できる。 （８）請求項６の構成によれば、血圧測定時の精神的状
況を測るのに使用する血管緊張状態を容易に数値化でき
る。 （９）請求項７の構成によれば、測定された血圧値がど
のような脈管系状況で測定されたのかを把握できる。 （10）請求項８の構成によれば、血圧測定時の脈管系状
況を測るのに使用する全血管抵抗を容易に数値化でき
る。 （11）請求項９の構成によれば、例えば比較結果によっ
て血圧測定が延期された場合に、被測定者が延期理由を
認識でき、延期の要因を取り除くように指示することが
できる。The electronic sphygmomanometer of the present invention has the following effects because it is configured as described above. (1) Since the three data of the pulse wave feature value, the blood pressure value, and the measurement time are measured continuously or intermittently over a long period of time and are stored in association with each other, the doctor can check the physiological conditions affecting the blood pressure value. The target state can be easily estimated, and the accuracy of the blood pressure diagnosis can be improved by adding the physiological state to the blood pressure value. (2) Information (vascular system, mental system) included in the pulse wave waveform is newly obtained. (3) By comparing the blood pressure value with the pulse wave shape feature value, overestimation and underestimation of the blood pressure value can be prevented. (4) According to the configuration of the second aspect, when it is determined from the pulse waveform characteristic amount that the influence of another error factor on the blood pressure value is large, the blood pressure measurement can be postponed, and a more accurate blood pressure measurement can be performed. Can be obtained. (5) According to the configuration of the third aspect, the waveform deformation of the pulse wave due to the pressing of the cuff can be prevented, and the calculation accuracy of the pulse wave shape feature quantity is improved. (6) According to the configuration of claim 4, by comparing the blood pressure value and the pulse wave shape feature value before and after the treatment, it is possible to judge whether the treatment method, the kind of medication and the dosage are appropriate, for example. . (7) According to the configuration of claim 5, it is possible to grasp in what mental state the measured blood pressure value was measured. (8) According to the configuration of the sixth aspect, the vascular tone used for measuring the mental state at the time of measuring the blood pressure can be easily digitized. (9) According to the configuration of claim 7, it is possible to grasp in which vascular system the measured blood pressure value is measured. (10) According to the configuration of claim 8, the total vascular resistance used for measuring the vascular system state at the time of blood pressure measurement can be easily quantified. (11) According to the configuration of claim 9, for example, when the blood pressure measurement is postponed by the comparison result, the subject can recognize the reason for postponement and can instruct to remove the cause of postponement.
【図１】一実施形態に係る電子血圧計におけるカフの概
略外観斜視図（ａ）、及び本体の概略外観斜視図（ｂ）
である。FIG. 1 is a schematic external perspective view of a cuff in an electronic sphygmomanometer according to an embodiment (a), and a schematic external perspective view of a main body (b).
It is.
【図２】同実施形態の電子血圧計の構成例を示すブロッ
ク図である。FIG. 2 is a block diagram showing a configuration example of the electronic sphygmomanometer of the embodiment.
【図３】同実施形態の電子血圧計の動作例を示すフロー
図である。FIG. 3 is a flowchart showing an operation example of the electronic sphygmomanometer of the embodiment.
【図４】別実施形態に係る電子血圧計の動作例を示すフ
ロー図である。FIG. 4 is a flowchart illustrating an operation example of an electronic sphygmomanometer according to another embodiment.
【図５】更に別実施形態に係る電子血圧計の動作例を示
すフロー図である。FIG. 5 is a flowchart showing an operation example of an electronic sphygmomanometer according to still another embodiment.
【図６】脈波形状特徴量を算出する血管緊張を反映する
パラメータを説明する図である。FIG. 6 is a diagram illustrating parameters reflecting a blood vessel tension for calculating a pulse wave shape feature quantity.
【図７】脈波形状特徴量を算出する全血管抵抗を反映す
るパラメータを説明する図である。FIG. 7 is a diagram illustrating parameters reflecting the total blood vessel resistance for calculating the pulse wave shape feature quantity.
【図８】図１の電子血圧計における本体の表示部の表示
形態を示す図である。8 is a diagram showing a display mode of a display unit of the main body in the electronic sphygmomanometer of FIG.
１０ カフ ２０ 本体 ２１ 表示部 ３０ ＣＰＵ（血圧算出機能、脈波特徴量検出機能、
測定シーケンス制御機能） ３１ 圧力制御部（圧力制御手段） ３２ 圧力センサ（圧力検出手段） ３３ 脈波センサ（脈波検出手段） ３５ 表示装置（出力手段） ３６ 記憶装置（記憶手段）10 cuff 20 main body 21 display unit 30 CPU (blood pressure calculation function, pulse wave feature amount detection function,
Measurement sequence control function) 31 Pressure controller (pressure control means) 32 Pressure sensor (pressure detection means) 33 Pulse wave sensor (pulse wave detection means) 35 Display device (output means) 36 Storage device (storage means)
Claims (9)
カフ内を加圧・減圧する圧力制御手段と、カフ内の圧力
を検出する圧力検出手段と、この圧力検出手段で得られ
た信号から血圧を算出する血圧算出手段とを備え、血圧
を長時間にわたって連続的又は間欠的に測定する電子血
圧計において、 前記カフに設けられ、測定部位から脈波を検出する脈波
検出手段と、この脈波検出手段で得られた脈波形状の特
徴量を算出する脈波特徴量検出手段と、この脈波特徴量
検出手段で得られた脈波形状特徴量、前記血圧算出手段
で得られた血圧値、及び測定時刻を関連付けて記憶する
記憶手段と、前記血圧値と測定時刻と脈波形状特徴量を
出力する出力手段とを備えることを特徴とする電子血圧
計。1. A cuff for compressing a measurement site of a living body,
Pressure control means for pressurizing and depressurizing the inside of the cuff, pressure detecting means for detecting the pressure in the cuff, and blood pressure calculating means for calculating the blood pressure from a signal obtained by the pressure detecting means; An electronic sphygmomanometer that measures continuously or intermittently, a pulse wave detecting means provided on the cuff and detecting a pulse wave from a measurement site, and a characteristic value of a pulse wave shape obtained by the pulse wave detecting means. Pulse wave feature value detection means to be calculated, and a pulse wave shape feature value obtained by the pulse wave feature value detection means, a blood pressure value obtained by the blood pressure calculation means, and a storage means for storing the measurement time in association with each other, An electronic sphygmomanometer comprising output means for outputting the blood pressure value, the measurement time, and the pulse wave shape feature quantity.
記憶され、前記脈波特徴量検出手段で得られた脈波形状
特徴量と前記記憶手段に記憶された脈波形状特徴量の基
準値とを比較し、この比較結果と比較結果に基づいて定
める以降の血圧測定動作との関連付けを設定・記憶し、
比較結果と関連付けに基づいて脈波検出後の血圧測定を
制御する測定シーケンス制御手段を備えることを特徴と
する請求項１記載の電子血圧計。2. A pulse wave shape feature value obtained by said pulse wave feature value detection means and a pulse wave shape feature value stored by said storage means. The reference value is compared with, and the association between the comparison result and the subsequent blood pressure measurement operation determined based on the comparison result is set and stored,
The electronic sphygmomanometer according to claim 1, further comprising a measurement sequence control unit that controls blood pressure measurement after pulse wave detection based on the comparison result and the association.
を検出する際のカフによる押圧が脈波測定部位の最低血
圧値以下となるように、脈波検出手段が測定する測定部
位に対するカフによる押圧を制御することを特徴とする
請求項１又は請求項２記載の電子血圧計。3. The measuring device according to claim 1, wherein the pressure control means is configured to measure the pulse wave by the pulse wave detecting means so that the pressure applied by the cuff when the pulse wave detecting means detects the pulse wave is equal to or less than the minimum blood pressure value of the pulse wave measuring part. The electronic sphygmomanometer according to claim 1 or 2, wherein the pressure of the cuff is controlled by the cuff.
分して二次微分脈波を得、脈波出現点に対応する二次微
分脈波中の最大点をａ、最小点をｂ、また脈波中におけ
る前隆波出現点に対応する二次微分脈波中の最大点を
ｃ、最小点をｄとすると、ｂ／ａ、ｄ／ａ又は｛（−ｂ
＋ｃ＋ｄ）／ａ｝×１００、或いはこれらの関数を用い
て脈波形状特徴量を算出することを特徴とする請求項
１、請求項２又は請求項３記載の電子血圧計。4. The pulse wave feature quantity detecting means performs a second derivative of the pulse wave to obtain a second derivative pulse wave, and sets the maximum point in the second derivative pulse wave corresponding to the pulse wave appearance point to a, minimum Assuming that the point is b, the maximum point in the second derivative pulse wave corresponding to the anterior ridge wave appearance point in the pulse wave is c, and the minimum point is d, b / a, d / a or ｛(-b
4. The electronic sphygmomanometer according to claim 1, wherein the pulse wave shape feature value is calculated using (+ c + d) / a｝ × 100 or a function thereof.
映するパラメータを用いて脈波形状特徴量を算出するこ
とを特徴とする請求項１、請求項２又は請求項３記載の
電子血圧計。5. The electronic device according to claim 1, wherein said pulse wave feature value detecting means calculates the pulse wave shape feature value using a parameter reflecting blood vessel tension. Sphygmomanometer.
映するパラメータとして、脈波の二次微分による二次微
分脈波において、脈波中における前隆波出現点に対応す
る最大点と最小点とのレベル差を脈波中の前隆波波高で
正規化した量の関数を用いることを特徴とする請求項５
記載の電子血圧計。6. The pulse wave feature quantity detecting means, as a parameter reflecting a vascular tone, in a second derivative pulse wave obtained by a second derivative of the pulse wave, a maximum point corresponding to a front ridge appearance point in the pulse wave. 6. A function of an amount obtained by normalizing a level difference between the peak point and the minimum point with a front ridge wave height in a pulse wave.
Electronic blood pressure monitor as described.
反映するパラメータを用いて脈波形状特徴量を算出する
ことを特徴とする請求項１、請求項２又は請求項３記載
の電子血圧計。7. The pulse wave feature amount detecting means according to claim 1, wherein said pulse wave feature amount detecting means calculates a pulse wave shape feature amount using a parameter reflecting a total blood vessel resistance. Electronic sphygmomanometer.
反映するパラメータとして、脈波中における大動脈弁閉
鎖痕の起始点と起始点後の最大点との血圧差を脈波中の
前隆波波高で正規化した量の関数を用いることを特徴と
する請求項７記載の電子血圧計。8. The pulse wave feature quantity detecting means calculates a blood pressure difference between the starting point of the aortic valve closure scar and the maximum point after the starting point in the pulse wave as a parameter reflecting the total vascular resistance. 8. The electronic sphygmomanometer according to claim 7, wherein a function of an amount normalized by a front ridge wave height is used.
状特徴量の基準値との比較結果を出力することを特徴と
する請求項２記載の電子血圧計。9. An electronic sphygmomanometer according to claim 2, wherein said output means outputs a result of comparison between the pulse wave shape feature value and a reference value of the pulse wave shape feature value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11181524A JP2001008907A (en) | 1999-06-28 | 1999-06-28 | Electric sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11181524A JP2001008907A (en) | 1999-06-28 | 1999-06-28 | Electric sphygmomanometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001008907A true JP2001008907A (en) | 2001-01-16 |
Family
ID=16102281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11181524A Pending JP2001008907A (en) | 1999-06-28 | 1999-06-28 | Electric sphygmomanometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001008907A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003000130A1 (en) * | 2001-06-21 | 2003-01-03 | Nihon University | Blood vessel disease examining device and bypass blood vessel diagnosing device |
| JP2003199718A (en) * | 2002-01-09 | 2003-07-15 | Nippon Colin Co Ltd | Arterial sclerosis evaluation apparatus |
| JP2005537724A (en) * | 2002-08-29 | 2005-12-08 | クゥアルコム・インコーポレイテッド | Procedure for detecting interference multipath conditions |
| JP2006102258A (en) * | 2004-10-06 | 2006-04-20 | Nippon Telegr & Teleph Corp <Ntt> | Ear type hemadynamometer |
| JP2006326293A (en) * | 2005-05-20 | 2006-12-07 | Dailycare Biomedical Inc | Device for evaluating cardiovascular function to provide index in accordance with health condition |
| JP2007007077A (en) * | 2005-06-29 | 2007-01-18 | Fukuda Denshi Co Ltd | Blood pressure monitoring apparatus |
| JP2008302127A (en) * | 2007-06-11 | 2008-12-18 | Denso Corp | Blood pressure measuring apparatus, program, and recording medium |
| JP2009101090A (en) * | 2007-10-25 | 2009-05-14 | Terumo Corp | Electronic sphygmomanometer and its signal processing method |
| US8473205B2 (en) | 2002-10-22 | 2013-06-25 | Qualcomm Incorporated | Procedure for searching for position determination signals using a plurality of search modes |
| US8870782B2 (en) | 2010-09-29 | 2014-10-28 | Denso Corporation | Pulse wave analyzer and blood pressure estimator using the same |
| JP2015531261A (en) * | 2012-09-10 | 2015-11-02 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Apparatus and method for improving the reliability of physiological parameter measurement |
| JP2015533548A (en) * | 2012-09-28 | 2015-11-26 | ビーピー アラート リミテッドＢｐ Ａｌｅｒｔ Ｌｉｍｉｔｅｄ | Device for measuring brachial blood pressure of the subject |
| JP2016140642A (en) * | 2015-02-04 | 2016-08-08 | セイコーエプソン株式会社 | Biological information measuring apparatus |
| JP2016140641A (en) * | 2015-02-04 | 2016-08-08 | セイコーエプソン株式会社 | Biological information measuring apparatus |
| WO2016155572A1 (en) * | 2015-03-27 | 2016-10-06 | 腾讯科技（深圳）有限公司 | Service processing method, terminal and server |
| JP2018166644A (en) * | 2017-03-29 | 2018-11-01 | 日本光電工業株式会社 | Blood pressure measuring device |
| KR20200063507A (en) * | 2018-11-28 | 2020-06-05 | 한국 한의학 연구원 | Apparatus and Method for Pulse Tension State |
-
1999
- 1999-06-28 JP JP11181524A patent/JP2001008907A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003000130A1 (en) * | 2001-06-21 | 2003-01-03 | Nihon University | Blood vessel disease examining device and bypass blood vessel diagnosing device |
| US7309313B2 (en) | 2001-06-21 | 2007-12-18 | Nihon University | Vascular disease examining system and bypass vascular diagnosing device |
| JP2003199718A (en) * | 2002-01-09 | 2003-07-15 | Nippon Colin Co Ltd | Arterial sclerosis evaluation apparatus |
| US7657230B2 (en) | 2002-08-29 | 2010-02-02 | Qualcomm Incorporated | Procedure for detecting interfering multi-path condition |
| JP2005537724A (en) * | 2002-08-29 | 2005-12-08 | クゥアルコム・インコーポレイテッド | Procedure for detecting interference multipath conditions |
| US8473205B2 (en) | 2002-10-22 | 2013-06-25 | Qualcomm Incorporated | Procedure for searching for position determination signals using a plurality of search modes |
| JP2006102258A (en) * | 2004-10-06 | 2006-04-20 | Nippon Telegr & Teleph Corp <Ntt> | Ear type hemadynamometer |
| JP2006326293A (en) * | 2005-05-20 | 2006-12-07 | Dailycare Biomedical Inc | Device for evaluating cardiovascular function to provide index in accordance with health condition |
| JP2007007077A (en) * | 2005-06-29 | 2007-01-18 | Fukuda Denshi Co Ltd | Blood pressure monitoring apparatus |
| JP2008302127A (en) * | 2007-06-11 | 2008-12-18 | Denso Corp | Blood pressure measuring apparatus, program, and recording medium |
| JP2009101090A (en) * | 2007-10-25 | 2009-05-14 | Terumo Corp | Electronic sphygmomanometer and its signal processing method |
| US8870782B2 (en) | 2010-09-29 | 2014-10-28 | Denso Corporation | Pulse wave analyzer and blood pressure estimator using the same |
| JP2015531261A (en) * | 2012-09-10 | 2015-11-02 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | Apparatus and method for improving the reliability of physiological parameter measurement |
| JP2015533548A (en) * | 2012-09-28 | 2015-11-26 | ビーピー アラート リミテッドＢｐ Ａｌｅｒｔ Ｌｉｍｉｔｅｄ | Device for measuring brachial blood pressure of the subject |
| JP2016140642A (en) * | 2015-02-04 | 2016-08-08 | セイコーエプソン株式会社 | Biological information measuring apparatus |
| JP2016140641A (en) * | 2015-02-04 | 2016-08-08 | セイコーエプソン株式会社 | Biological information measuring apparatus |
| WO2016155572A1 (en) * | 2015-03-27 | 2016-10-06 | 腾讯科技（深圳）有限公司 | Service processing method, terminal and server |
| JP2018166644A (en) * | 2017-03-29 | 2018-11-01 | 日本光電工業株式会社 | Blood pressure measuring device |
| US11627886B2 (en) | 2017-03-29 | 2023-04-18 | Nihon Kohden Corporation | Blood pressure measuring apparatus |
| KR20200063507A (en) * | 2018-11-28 | 2020-06-05 | 한국 한의학 연구원 | Apparatus and Method for Pulse Tension State |
| KR102270407B1 (en) * | 2018-11-28 | 2021-06-29 | 한국 한의학 연구원 | Apparatus and Method for Pulse Tension State |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1992282B1 (en) | Method for non-invasively determining an endothelial function and a device for carrying out said method | |
| US7309313B2 (en) | Vascular disease examining system and bypass vascular diagnosing device | |
| US6602199B2 (en) | Method and apparatus for measuring values of physiological parameters | |
| US6338719B1 (en) | Method and system for detecting vascular conditions using an occlusive arm cuff plethysmograph | |
| US7270636B2 (en) | Apparatus and method for pulse detection | |
| US5533511A (en) | Apparatus and method for noninvasive blood pressure measurement | |
| JP5850861B2 (en) | Eliminating the effects of irregular cardiac cycles in determining cardiovascular parameters | |
| JP2001008907A (en) | Electric sphygmomanometer | |
| US20060264771A1 (en) | Apparatus for evaluating cardiovascular functions | |
| US20060224070A1 (en) | System and method for non-invasive cardiovascular assessment from supra-systolic signals obtained with a wideband external pulse transducer in a blood pressure cuff | |
| JPH11347004A (en) | Method and apparatus for measuring blood pressure not inserted into body and method and apparatus for detecting arrhythmia | |
| EP0195048A4 (en) | Calibrated arterial pressure measurement device. | |
| US20140107505A1 (en) | Determination of ventricular pressure and related values | |
| CN103536281A (en) | Vascular endothelial function detecting device based on fingertip temperature change | |
| EP0960598B1 (en) | A method and a device for noninvasive measurement of the blood pressure and for detection of arrhythmia | |
| JP3637916B2 (en) | Biological condition measuring device | |
| JP2000217796A (en) | Circulatory function diagnostic device | |
| GB2456947A (en) | Non invasive determination of stroke volume based on incident wave suprasystolic blood pressure amplitude | |
| JP4522561B2 (en) | Pressurized blood pressure monitor | |
| Jobbágy et al. | Blood pressure measurement at home | |
| JP2007061572A (en) | Diagnostic apparatus for arteriosclerosis and autonomic imbalance by pulse wave | |
| JP2003265420A (en) | Hemodynamometer with arterial pressure pulse wave analyzing function using brachium pressurizing method | |
| CN117064354A (en) | Continuous blood pressure measuring method and system without cuff | |
| CN101869470A (en) | Method for detecting cardiovascular and cerebrovascular diseases based on blood pressure factor combination and device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20050301 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20050315 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20050802 |