JP2015188646A - Blood pressure measuring device - Google Patents

Blood pressure measuring device Download PDF

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JP2015188646A
JP2015188646A JP2014069030A JP2014069030A JP2015188646A JP 2015188646 A JP2015188646 A JP 2015188646A JP 2014069030 A JP2014069030 A JP 2014069030A JP 2014069030 A JP2014069030 A JP 2014069030A JP 2015188646 A JP2015188646 A JP 2015188646A
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pressure
cuff
valve device
pump
time
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JP6327905B2 (en
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勝 栗尾
Masaru Kurio
勝 栗尾
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Terumo Corp
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Terumo Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a blood pressure measuring device capable of measuring blood pressure without increasing burden on the subject.SOLUTION: The blood pressure measuring device comprises a pressurizing pump, a pressure vessel, a cuff, and a control unit. The control unit includes: an input part for inputting time information about the time at which blood pressure measurement is performed; and a processing part for determining a first time at which driving of the pressurizing pump is started on the basis of the time information. The control unit causes the pressurizing pump to communicate with the pressure vessel at the first time and starts driving the pressurizing pump to thereby raise the pressure inside the pressure vessel. The control unit then causes the pressure vessel to communicate with the cuff to start air supply from the pressure vessel to the cuff, and thereafter begins blood pressure measurement.

Description

本発明は、血圧計に関する。   The present invention relates to a sphygmomanometer.

上腕部などの生体の一部にカフを巻き、加圧ポンプによりカフに空気を送って、カフの内部の圧力を高め、その後、カフから徐々に排気して減圧する過程で血圧を測定する自動血圧計がある。自動血圧計には、特許文献１に記載されているような、２４時間以上にわたって血圧を繰り返し測定するものがある。   Automatic measurement of blood pressure in the process of wrapping a cuff around a part of a living body such as the upper arm, sending air to the cuff by a pressure pump, increasing the pressure inside the cuff, and then gradually exhausting and reducing the pressure from the cuff. There is a sphygmomanometer. Some automatic sphygmomanometers, as described in Patent Document 1, repeatedly measure blood pressure over 24 hours.

特開２０１０−１９４２０２号公報JP 2010-194202 A

長時間にわたり繰り返し血圧を測定する場合、夜間などの静かな時にも血圧測定を行う必要がある。夜間では、電動の加圧ポンプによりカフへ空気を送る際の、加圧ポンプの作動音が問題になる。また日中でも、血圧測定時の加圧ポンプの作動音を気にする人もいる。加圧ポンプの作動音が小さい、例えば圧電素子を駆動に使ったポンプもあるが、圧電素子を使ったポンプは送気量が少ないので、カフの圧力を高めるのに時間がかかる。そのために、測定部位を阻血している時間が長くなり被測定者の負担が大きくなる。本発明は、送気能力の小さいポンプで、被測定者の負担を増すことなく血圧測定可能な血圧計を提供することを目的とする。   When blood pressure is repeatedly measured over a long period of time, it is necessary to perform blood pressure measurement even at a quiet time such as at night. At night, the operating noise of the pressure pump when air is sent to the cuff by the electric pressure pump becomes a problem. Some people also care about the operating noise of the pressurization pump during blood pressure measurement during the day. There are pumps with a low operating noise of the pressure pump, for example, using a piezoelectric element for driving. However, since a pump using a piezoelectric element has a small amount of air supply, it takes time to increase the pressure of the cuff. For this reason, the time during which the measurement site is occluded becomes longer, and the burden on the measurement subject increases. It is an object of the present invention to provide a sphygmomanometer capable of measuring blood pressure without increasing the burden on the person being measured with a pump having a small air supply capacity.

上記目的を達成するために、本発明の血圧計は、加圧ポンプと、圧力容器と、カフと、制御部とを有し、前記制御部は、血圧測定をする時刻情報を入力する入力部と、前記時刻情報に基づいて前記加圧ポンプの駆動を開始する第１時刻を決定する処理部とを有し、前記制御部は、前記第１時刻に、前記加圧ポンプと前記圧力容器とを連通させた状態で、前記加圧ポンプの駆動を開始することにより前記圧力容器の内部の圧力を高め、その後、前記圧力容器と前記カフとを連通させた状態とすることにより、前記圧力容器から前記カフに空気の供給を開始し、その後、血圧の測定を開始することを特徴とする。   In order to achieve the above object, a sphygmomanometer according to the present invention includes a pressurizing pump, a pressure vessel, a cuff, and a control unit, and the control unit inputs input time information for blood pressure measurement. And a processing unit that determines a first time to start driving the pressurization pump based on the time information, and the control unit includes the pressurization pump, the pressure vessel, and the pressure vessel at the first time. In the state where the pressure vessel is communicated, the pressure vessel is started to drive to increase the pressure inside the pressure vessel, and then the pressure vessel and the cuff are brought into communication with each other. The supply of air to the cuff is started, and then blood pressure measurement is started.

本発明によれば、送気能力の小さいポンプでも、被測定者の負担を増すことなく血圧測定可能である。   According to the present invention, blood pressure can be measured even with a pump having a small air supply capacity without increasing the burden on the subject.

本発明の実施形態に係る血圧計の概略図。1 is a schematic view of a sphygmomanometer according to an embodiment of the present invention. 本発明の実施形態に係る血圧計の概略図。1 is a schematic view of a sphygmomanometer according to an embodiment of the present invention. 本発明の実施形態に係る血圧計の概略図。1 is a schematic view of a sphygmomanometer according to an embodiment of the present invention. 本発明の実施形態に係る血圧計の装着形態。The wearing form of the blood pressure meter which concerns on embodiment of this invention.

以下に、本発明の好ましい実施の形態を、添付の図面に基づいて詳細に説明する。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

［実施形態１］
本実施形態の血圧計について、図１により説明する。本実施形態の血圧計は、生体の上腕部に巻くカフ１０１、カフ１０１の圧力を高めるための空気を溜める圧力容器１０２、カフ１０１と圧力容器１０２に空気を送ってそれぞれの内部の圧力を高めるための加圧ポンプ１０３及び制御部１０４を備える。制御部１０４は血圧計全体を制御する。カフ１０１、圧力容器１０２及び加圧ポンプ１０３は空気の流路となるチューブで接続されている。チューブの途中には第１弁装置１０５及び第２弁装置１０６が設けられている。また、チューブには、一端が外部へ解放された第３弁装置１０８が設けられている。第１弁装置１０５、第２弁装置１０６、第３弁装置１０８は、以下に述べる機能を有すれば、それぞれ独立した弁である必要はない。圧力容器１０２には、血圧測定をするときに、予め制御部１０４により加圧ポンプ１０３が駆動されて空気が送られ、圧力容器１０２の内部の圧力が高められる。圧力容器１０２は所定の圧力に耐えられる剛性を持った、例えば５００ｃｃ程度の容量の容器である。 [Embodiment 1]
The blood pressure monitor of the present embodiment will be described with reference to FIG. The sphygmomanometer according to the present embodiment includes a cuff 101 wound around the upper arm portion of a living body, a pressure vessel 102 that stores air for increasing the pressure of the cuff 101, and air is sent to the cuff 101 and the pressure vessel 102 to increase the internal pressure of each. The pressure pump 103 and the control unit 104 are provided. The control unit 104 controls the entire sphygmomanometer. The cuff 101, the pressure vessel 102, and the pressure pump 103 are connected by a tube that serves as an air flow path. A first valve device 105 and a second valve device 106 are provided in the middle of the tube. The tube is provided with a third valve device 108 having one end released to the outside. The first valve device 105, the second valve device 106, and the third valve device 108 do not need to be independent valves as long as they have the functions described below. When the blood pressure is measured, the pressure pump 103 is driven by the control unit 104 in advance to send air to the pressure vessel 102, and the pressure inside the pressure vessel 102 is increased. The pressure vessel 102 is a vessel having a rigidity capable of withstanding a predetermined pressure and having a capacity of, for example, about 500 cc.

カフ１０１、圧力容器１０２、加圧ポンプ１０３の間を接続するチューブの途中には、制御部１０４により開閉が制御される第１弁装置１０５及び第２弁装置１０６が設けられている。第１弁装置１０５は、その一端がチューブを介して加圧ポンプ１０３に接続され、その他端はチューブを介して圧力容器１０２に接続されている。第２弁装置１０６は、その一端がチューブを介して加圧ポンプ１０３に接続され、その他端はチューブを介してカフ１０１に接続されている。第１弁装置１０５の加圧ポンプ１０３側の一端に接続されたチューブと第２弁装置１０６の加圧ポンプ１０３側の一端に接続されたチューブとは連結されて加圧ポンプ１０３に接続されている。   A first valve device 105 and a second valve device 106 whose opening and closing are controlled by the control unit 104 are provided in the middle of the tube connecting the cuff 101, the pressure vessel 102, and the pressure pump 103. One end of the first valve device 105 is connected to the pressure pump 103 via a tube, and the other end is connected to the pressure vessel 102 via a tube. One end of the second valve device 106 is connected to the pressurizing pump 103 via a tube, and the other end is connected to the cuff 101 via a tube. A tube connected to one end of the first valve device 105 on the side of the pressure pump 103 and a tube connected to one end of the second valve device 106 on the side of the pressure pump 103 are connected and connected to the pressure pump 103. Yes.

第１弁装置１０５の加圧ポンプ１０３側の一端と第２弁装置１０６の加圧ポンプ１０３側の一端とが連結された箇所には、圧力を測定する圧力センサ１０７が設けられている。圧力センサ１０７により測定された圧力データは制御部１０４へ入力されて、血圧測定や各部の制御に用いられる。また第２弁装置１０６のカフ１０１側の他端とカフ１０１との間には、カフ１０１の空気袋の空気を排気するための排気用の第３弁装置１０８が設けられている。制御部１０４は、圧力センサ１０７が測定した圧力値や内蔵された時計からの時刻情報に基づいて加圧ポンプ１０３、第１弁装置１０５、第２弁装置１０６、第３弁装置１０８を制御する。また、制御部１０４は圧力センサ１０７が測定した圧力値の情報から脈波信号を分離して、血圧を測定する。制御部１０４には、血圧測定時刻や測定時間間隔などの時刻情報をユーザが入力するための入力部１０９と入力した情報や測定した血圧値などを表示する表示部１１０とが接続されている。   A pressure sensor 107 for measuring pressure is provided at a location where one end of the first valve device 105 on the pressure pump 103 side and one end of the second valve device 106 on the pressure pump 103 side are connected. The pressure data measured by the pressure sensor 107 is input to the control unit 104 and used for blood pressure measurement and control of each unit. Further, an exhaust third valve device 108 for exhausting the air in the air bag of the cuff 101 is provided between the other end of the second valve device 106 on the cuff 101 side and the cuff 101. The control unit 104 controls the pressurization pump 103, the first valve device 105, the second valve device 106, and the third valve device 108 based on the pressure value measured by the pressure sensor 107 and time information from a built-in clock. . The control unit 104 also separates the pulse wave signal from the pressure value information measured by the pressure sensor 107 and measures blood pressure. Connected to the control unit 104 are an input unit 109 for the user to input time information such as blood pressure measurement time and measurement time interval, and a display unit 110 for displaying the input information and the measured blood pressure value.

制御部１０４は、ユーザにより設定された時刻情報に基づいて、加圧ポンプ１０３の駆動を開始する第１時刻ｔ１１を計算して決定するスケジューリング部１４１と第１時刻ｔ１１を記憶するメモリ１４２を有している。第１時刻ｔ１１は、加圧ポンプ１０３により圧力容器１０２を所定の値、例えば３００ｍｍＨｇにするのに要する時間を考慮して、スケジューリング部１４１が、ユーザが設定した時刻情報に基づく測定時刻の所定時間前に設定される。   The control unit 104 includes a scheduling unit 141 that calculates and determines a first time t11 for starting driving of the pressurizing pump 103 based on time information set by a user, and a memory 142 that stores the first time t11. doing. The first time t11 is a predetermined time of the measurement time based on the time information set by the user in consideration of the time required for the pressure pump 103 to set the pressure vessel 102 to a predetermined value, for example, 300 mmHg. Set before.

次に、本実施形態の血圧計の動作について説明する。制御部１０４は時計を持っており、スケジューリング部１４１が決定した第１時刻ｔ１１になったら、血圧測定の準備を開始する。第１時刻ｔ１１になると制御部１０４は、第１弁装置１０５を開き、第２弁装置１０６を閉じ、圧力容器１０２と加圧ポンプ１０３を連通させた状態にする。次に、制御部１０４は、加圧ポンプ１０３を駆動して空気の送気を開始する。送気された空気は第１弁装置１０５を介して圧力容器１０２に送られて、圧力容器１０２の内部の圧力を高める。   Next, the operation of the sphygmomanometer of this embodiment will be described. The control unit 104 has a clock. When the first time t11 determined by the scheduling unit 141 is reached, preparation for blood pressure measurement is started. At the first time t11, the control unit 104 opens the first valve device 105, closes the second valve device 106, and brings the pressure vessel 102 and the pressurization pump 103 into communication. Next, the control unit 104 drives the pressurizing pump 103 to start air supply. The supplied air is sent to the pressure vessel 102 via the first valve device 105 to increase the pressure inside the pressure vessel 102.

圧力容器１０２と加圧ポンプ１０３が連通している状態では、圧力センサ１０７は、圧力容器１０２の内部の圧力値を出力する。圧力センサ１０７が測定した圧力値は制御部１０４に送られる。圧力容器１０２の内部の圧力が所定の圧力、例えば、３００ｍｍＨｇに達したことを時刻ｔ１２で圧力センサ１０７が検出すると、制御部１０４は、圧力容器１０２の内部の圧力が所定の値になったことを判定して、第1弁装置１０５および第３弁装置１０８を閉じ、第２弁装置１０６を開く。   In a state where the pressure vessel 102 and the pressure pump 103 are in communication, the pressure sensor 107 outputs the pressure value inside the pressure vessel 102. The pressure value measured by the pressure sensor 107 is sent to the control unit 104. When the pressure sensor 107 detects that the pressure inside the pressure vessel 102 reaches a predetermined pressure, for example, 300 mmHg, at time t12, the control unit 104 indicates that the pressure inside the pressure vessel 102 has reached a predetermined value. Is determined, the first valve device 105 and the third valve device 108 are closed, and the second valve device 106 is opened.

時刻ｔ１３から制御部１０４は加圧ポンプ１０３を駆動して、カフ１０１への送気を開始する。この加圧ポンプ１０３によるカフ１０１への予備的な加圧は、血圧測定の準備のために、カフ１０１とカフ１０１が巻かれた上腕部との間のデッドボリュームを減少させるために行われる。加圧ポンプ１０３の駆動により、カフ１０１の空気袋は膨らみ、カフ１０１と生体の上腕部との間のデッドボリュームが減少させられる。加圧は、カフ１０１が上腕部を阻血する前に終了される。加圧の終了は、カフ１０１の内部の圧力で判断される。時刻ｔ１３では第１弁装置１０５が閉じ、第２弁装置１０６が開いているので、カフ１０１と圧力センサ１０７とは連通した状態にある。したがって、圧力センサ１０７はカフ１０１の内部の圧力を測定している。カフ１０１の圧力が最低血圧を上限とした所定の値、例えば５０ｍｍＨｇに達したことを圧力センサ１０７が検出すると、制御部１０４はカフ１０１のデッドボリュームがほぼ解消したと判断し、第１弁装置１０５を時刻ｔ１４で開く。すると、カフ１０１と圧力容器１０２とは連通した状態になり、圧力容器１０２に蓄えられていた高い圧力の圧縮空気がカフ１０１へ流れ込み、カフ１０１の圧力を一気に高くする。このとき圧力センサ１０７は、圧力容器１０２からカフ１０１へ空気が流れこむことによるカフ１０１の内部の圧力の変化を検出している。制御部１０４は、圧力センサ１０７により、時刻ｔ１５において圧力の変化が所定の値に収まったことを検出すると、カフ１０１の内部の圧力が安定したと判定して、第１弁装置１０５を閉じる。   From time t <b> 13, the control unit 104 drives the pressurizing pump 103 to start supplying air to the cuff 101. The preliminary pressurization of the cuff 101 by the pressurization pump 103 is performed to reduce the dead volume between the cuff 101 and the upper arm portion around which the cuff 101 is wound in preparation for blood pressure measurement. By driving the pressurizing pump 103, the air bag of the cuff 101 is inflated, and the dead volume between the cuff 101 and the upper arm portion of the living body is reduced. The pressurization is terminated before the cuff 101 blocks the upper arm. The end of pressurization is determined by the pressure inside the cuff 101. At time t13, the first valve device 105 is closed and the second valve device 106 is opened, so that the cuff 101 and the pressure sensor 107 are in communication. Therefore, the pressure sensor 107 measures the pressure inside the cuff 101. When the pressure sensor 107 detects that the pressure of the cuff 101 has reached a predetermined value with an upper limit of the minimum blood pressure, for example, 50 mmHg, the control unit 104 determines that the dead volume of the cuff 101 has been substantially eliminated, and the first valve device 105 is opened at time t14. Then, the cuff 101 and the pressure vessel 102 are in communication with each other, and high-pressure compressed air stored in the pressure vessel 102 flows into the cuff 101, and the pressure of the cuff 101 is increased at a stretch. At this time, the pressure sensor 107 detects a change in pressure inside the cuff 101 due to air flowing from the pressure vessel 102 to the cuff 101. When the pressure sensor 107 detects that the pressure change has fallen within a predetermined value at the time t15, the control unit 104 determines that the pressure inside the cuff 101 is stable and closes the first valve device 105.

ここで、ｔ１４でカフ１０１内の圧力が所定圧に達したことを検知し、第１弁装置１０５及び第２弁装置１０６を開いてカフ１０１と圧力容器１０２とを連通した際に、加圧ポンプ１０３を停止せず、そのまま加圧し続けてもよい。また、圧力容器１０２とカフ１０１を連通し、圧力容器１０２内の圧縮空気をカフ１０１へ送る際に、第１弁装置１０５を制御して送気量をコントロールすることも可能である。その場合、圧力センサ１０７で検知した脈波を制御部１０４で処理し、カフ１０１の加圧を停止する圧を厳密にコントロールしたり、昇圧中の血圧測定も可能となる。また、圧力容器１０２の所定圧までの加圧と、カフ１０１の予備的な加圧の順は逆にしてもよい。   Here, when it is detected that the pressure in the cuff 101 has reached a predetermined pressure at t14, the first valve device 105 and the second valve device 106 are opened, and the cuff 101 and the pressure vessel 102 are communicated with each other. The pump 103 may continue to be pressurized without stopping. Further, when the pressure vessel 102 and the cuff 101 are communicated and the compressed air in the pressure vessel 102 is sent to the cuff 101, it is also possible to control the first valve device 105 to control the air supply amount. In that case, the pulse wave detected by the pressure sensor 107 is processed by the control unit 104, and the pressure for stopping the pressurization of the cuff 101 is strictly controlled, and the blood pressure during the pressurization can be measured. The order of pressurization of the pressure vessel 102 up to a predetermined pressure and preliminary pressurization of the cuff 101 may be reversed.

時刻ｔ１５において圧力センサ１０７が検出した圧力が生体の最高血圧を測定するのに十分に高い圧力であれば、制御部１０４は血圧測定を開始する。制御部１０４が、圧力センサ１０７が検出した圧力が最高血圧を測定するのには低く、圧力が不足していると判断した場合には、制御部１０４は時刻ｔ１５から加圧ポンプ１０３をさらに駆動する。加圧ポンプ１０３の駆動により、カフ１０１の内部の圧力を、最高血圧を測定するのに十分な所定の圧力、例えば１８０ｍｍＨｇまで高める。圧力センサ１０７が所定の圧力を時刻ｔ１６で検出すると、制御部１０４は加圧ポンプ１０３の駆動を停止して、血圧測定を開始する。制御部１０４は、排気用の第３弁装置１０８を制御して、例えば３〜５ｍｍＨｇ／ｓでカフ１０１の圧力を低下させる。制御部１０４は、カフ１０１の圧力を低下させながら、圧力センサ１０７から入力される圧力変化から脈波を検出、処理して血圧測定を行う。制御部１０４は、最高血圧と最低血圧を測定すると、最低血圧を測定した時刻ｔ１７の一定時間後に、第１、２、３弁装置を開いてカフ１０１及び圧力容器１０２の空気を排気し、この時刻での血圧の測定を終了する。制御部１０４は、測定した血圧値を表示してもよいし、時刻に対応させて血圧値を記憶してもよい。血圧値と時刻を記憶した場合は、血圧値と時刻とのデータは後で記憶装置から読み出してもよい。   If the pressure detected by the pressure sensor 107 at time t15 is sufficiently high to measure the maximum blood pressure of the living body, the control unit 104 starts blood pressure measurement. When the control unit 104 determines that the pressure detected by the pressure sensor 107 is low to measure the maximum blood pressure and the pressure is insufficient, the control unit 104 further drives the pressurization pump 103 from time t15. To do. By driving the pressurizing pump 103, the pressure inside the cuff 101 is increased to a predetermined pressure sufficient to measure the maximum blood pressure, for example, 180 mmHg. When the pressure sensor 107 detects a predetermined pressure at time t16, the control unit 104 stops driving the pressurizing pump 103 and starts blood pressure measurement. The control part 104 controls the 3rd valve apparatus 108 for exhaust, and reduces the pressure of the cuff 101, for example by 3-5 mmHg / s. The control unit 104 performs blood pressure measurement by detecting and processing a pulse wave from a pressure change input from the pressure sensor 107 while reducing the pressure of the cuff 101. When measuring the maximum blood pressure and the minimum blood pressure, the control unit 104 opens the first, second, and third valve devices to exhaust the air in the cuff 101 and the pressure vessel 102 after a certain time from the time t17 when the minimum blood pressure is measured. End the measurement of blood pressure at the time. The control unit 104 may display the measured blood pressure value, or may store the blood pressure value corresponding to the time. When the blood pressure value and the time are stored, the data of the blood pressure value and the time may be read later from the storage device.

制御部１０４のスケジューリング部１４１には、測定時刻を補正する手段を設けることができる。測定時刻に対して決定した第１時刻ｔ１１から圧力容器１０２の加圧を開始し、その後カフ１０１を予備的に加圧した後の、時刻ｔ１４から圧力容器１０２によるカフ１０１の加圧が開始される。時刻ｔ１４を、血圧測定を開始する時刻とした場合に、時刻ｔ１４が設定された時刻より早かったり遅かったりする場合がある。そこで、スケジューリング部１４１は、設定された時刻情報に基づく測定時刻と実際の時刻ｔ１４との差に応じて、補正値を求めて、時刻ｔ１１を決定するときの計算に反映してもよい。また、制御部１０４は、測定した最低血圧値に基づいて、時刻ｔ１３から開始するカフ１０１への予備的な加圧を終了する圧力値を決定することができる。例えば、繰り返し計測対象となっている生体の最低血圧値が８０ｍｍＨｇであることが測定により分かっている時は、所定値、例えば最低血圧値から２０ｍｍＨｇ引いた６０ｍｍＨｇ、あるいは約６割の圧力値５０ｍｍＨｇをデッドボリュームが解消したと判断する圧力値にする。生体にとって阻血による負担の少ない適切な圧力値を設定でき、無駄な加圧時間を減らすこともできる。   The scheduling unit 141 of the control unit 104 can be provided with means for correcting the measurement time. Pressurization of the pressure vessel 102 is started at time t14 after the pressurization of the pressure vessel 102 is started from the first time t11 determined with respect to the measurement time, and then the cuff 101 is preliminarily pressurized. The When the time t14 is set as the time for starting blood pressure measurement, the time t14 may be earlier or later than the set time. Therefore, the scheduling unit 141 may obtain a correction value according to the difference between the measurement time based on the set time information and the actual time t14 and reflect the correction value in the calculation when determining the time t11. Moreover, the control part 104 can determine the pressure value which complete | finishes the preliminary pressurization to the cuff 101 which starts from the time t13 based on the measured minimum blood pressure value. For example, when it is known by measurement that the minimum blood pressure value of a living body that is repeatedly measured is 80 mmHg, a predetermined value, for example, 60 mmHg obtained by subtracting 20 mmHg from the minimum blood pressure value, or about 60% of the pressure value 50 mmHg Set the pressure value so that the dead volume is resolved. It is possible to set an appropriate pressure value with less burden due to ischemia for the living body, and to reduce useless pressurization time.

本実施形態により、血圧測定をする前に圧力容器１０２に圧力の高い空気を蓄えておき、測定時刻にカフ１０１の圧力を一気に高めることにより、血圧測定をより正確なスケジュールで実行できる。また、血圧測定時にカフ１０１の圧力を高めるのに要する時間を短縮できるので、カフへ加圧するときに上腕部が圧迫される時間を短縮し、阻血による負担を小さくできる。圧力容器１０２へ空気を供給するときに、加圧ポンプ１０３として送気能力は低いが低騒音の圧電素子を使ったポンプを使う場合も、事前に圧力容器１０２に加圧した空気を使って、測定時刻に一気にカフ１０１を加圧することができるので、阻血による負担を軽減することができ、正確なスケジュールで血圧測定をすることができる。通常の電動ポンプを、圧力容器１０２の加圧時には送気能力を低下させて、作動音を小さくして使ってもよく、その場合も正確なスケジュールで血圧測定をすることができる。また、カフ１０１のデッドボリューム分の送気量は加圧ポンプ１０３によって供給されるので、その分、圧力容器１０２のサイズを小さくできるとともに、圧力容器１０２内の圧力を低く抑えることができ、携帯性や安全性の面で優れている。また、本実施形態では圧力センサ１つで、圧力容器１０２の圧力の検出と血圧測定を行うことができる。   According to the present embodiment, blood pressure measurement can be performed with a more accurate schedule by storing high-pressure air in the pressure vessel 102 before blood pressure measurement and increasing the pressure of the cuff 101 at a measurement time. In addition, since the time required to increase the pressure of the cuff 101 during blood pressure measurement can be shortened, the time during which the upper arm is pressed when the cuff 101 is pressurized can be shortened, and the burden caused by ischemia can be reduced. When supplying air to the pressure vessel 102, even when using a pump using a piezoelectric element with low air supply capacity but low noise as the pressurizing pump 103, using the air pressurized to the pressure vessel 102 in advance, Since the cuff 101 can be pressurized at a measurement time, the burden caused by ischemia can be reduced, and blood pressure can be measured with an accurate schedule. A normal electric pump may be used with a reduced operating noise when the pressure vessel 102 is pressurized, and the operating sound may be reduced. In this case, blood pressure can be measured with an accurate schedule. Further, since the air supply amount corresponding to the dead volume of the cuff 101 is supplied by the pressurizing pump 103, the size of the pressure vessel 102 can be reduced by that amount, and the pressure in the pressure vessel 102 can be kept low. Excellent in terms of safety and safety. In this embodiment, the pressure of the pressure vessel 102 and the blood pressure can be measured with a single pressure sensor.

［実施形態２］
本実施形態について図２により説明する。本実施形態では、圧力容器２０２の内部の圧力を高めるときに、制御部２０４により所定時間、加圧ポンプ２０３を駆動して行う。実施形態１と重複する説明は省略する。本実施形態の血圧計は、生体の上腕部に巻くカフ２０１、カフ２０１の圧力を高めるための空気を溜める圧力容器２０２、カフ２０１と圧力容器２０２に空気を送ってそれぞれの内部の圧力を高めるための加圧ポンプ２０３及び制御部２０４を備える。カフ２０１、圧力容器２０２及び加圧ポンプ２０３は空気の流路となるチューブで接続されている。チューブの途中には第１弁装置２０５、第２弁装置２０６が設けられている。 [Embodiment 2]
This embodiment will be described with reference to FIG. In the present embodiment, when the pressure inside the pressure vessel 202 is increased, the pressurizing pump 203 is driven by the control unit 204 for a predetermined time. The description which overlaps with Embodiment 1 is abbreviate | omitted. The sphygmomanometer according to the present embodiment includes a cuff 201 wound around the upper arm of a living body, a pressure vessel 202 that stores air for increasing the pressure of the cuff 201, and air is sent to the cuff 201 and the pressure vessel 202 to increase the internal pressure of each. A pressure pump 203 and a control unit 204 are provided. The cuff 201, the pressure vessel 202, and the pressure pump 203 are connected by a tube that serves as an air flow path. A first valve device 205 and a second valve device 206 are provided in the middle of the tube.

カフ２０１、圧力容器２０２、加圧ポンプ２０３の間を接続するチューブの途中には、制御部２０４により開閉が制御される第１弁装置２０５及び第２弁装置２０６が設けられている。第１弁装置２０５は、その一端がチューブを介して加圧ポンプ２０３に接続され、その他端はチューブを介して圧力容器２０２に接続されている。第２弁装置２０６は、その一端がチューブを介して加圧ポンプ２０３に接続され、その他端はチューブを介してカフ２０１に接続されている。第１弁装置２０５の加圧ポンプ２０３側の一端と第２弁装置２０６の加圧ポンプ２０３側の一端とは連結されており、加圧ポンプ２０３に接続されている。   A first valve device 205 and a second valve device 206 whose opening and closing are controlled by the control unit 204 are provided in the middle of the tube connecting the cuff 201, the pressure vessel 202, and the pressure pump 203. One end of the first valve device 205 is connected to the pressurizing pump 203 via a tube, and the other end is connected to the pressure vessel 202 via a tube. One end of the second valve device 206 is connected to the pressurizing pump 203 via a tube, and the other end is connected to the cuff 201 via a tube. One end on the pressure pump 203 side of the first valve device 205 and one end on the pressure pump 203 side of the second valve device 206 are connected and connected to the pressure pump 203.

第２弁装置２０６のカフ２０１が接続されている側に、圧力センサ２０７と排気用の第３弁装置２０８が設けられている。圧力センサ２０７により測定された圧力データは制御部２０４へ入力されて、血圧測定や各部の制御に用いられる。制御部２０４は、圧力センサ２０７が測定した圧力値や内蔵された時計からの時刻情報に基づいて加圧ポンプ２０３、第１弁装置２０５、第２弁装置２０６、第３弁装置２０８を制御する。また、制御部２０４は、ユーザにより設定された時刻情報に基づいて、加圧ポンプ２０３の駆動を開始する第１時刻ｔ２１を計算して決定するスケジューリング部２４１と第１時刻ｔ２１を記憶するメモリ２４２を有している。第１時刻ｔ２１は加圧ポンプ２０３を駆動して圧力容器２０２の内部圧力を高めるのに要する時間などを考慮して、スケジューリング部２４１が、測定時刻の所定時間前に設定する。   A pressure sensor 207 and a third valve device 208 for exhaust are provided on the side of the second valve device 206 to which the cuff 201 is connected. Pressure data measured by the pressure sensor 207 is input to the control unit 204 and used for blood pressure measurement and control of each unit. The control unit 204 controls the pressurization pump 203, the first valve device 205, the second valve device 206, and the third valve device 208 based on the pressure value measured by the pressure sensor 207 and the time information from the built-in clock. . In addition, the control unit 204 calculates and determines a first time t21 for starting the driving of the pressurizing pump 203 based on time information set by the user, and a memory 242 for storing the first time t21. have. The first time t21 is set by the scheduling unit 241 a predetermined time before the measurement time in consideration of the time required to drive the pressure pump 203 to increase the internal pressure of the pressure vessel 202.

次に、本実施形態の血圧計の動作について図２により説明する。制御部２０４は時計を持っており、スケジューリング部２４１が計算して求めた第１時刻ｔ２１になったら、血圧測定の準備を開始する。第１時刻ｔ２１になると、制御部２０４は、第１弁装置２０５を開き、第２弁装置２０６を閉じ、圧力容器２０２と加圧ポンプ２０３を連通させた状態にする。次に、制御部２０４は、加圧ポンプ２０３を駆動して空気の送気を開始する。送気された空気は第１弁装置２０５を介して圧力容器２０２に送られて、圧力容器２０２の内部の圧力を高める。制御部２０４は加圧ポンプ２０３を決められた時間、例えば７０秒間駆動させる。７０秒後、例えば時刻ｔ２２になると、制御部２０４は、第1弁装置２０５を閉じ、第２弁装置２０６を開き、圧力容器２０２への加圧を終了する。   Next, the operation of the sphygmomanometer of this embodiment will be described with reference to FIG. The control unit 204 has a clock. When the first time t21 calculated and obtained by the scheduling unit 241 is reached, preparation for blood pressure measurement is started. At the first time t21, the control unit 204 opens the first valve device 205, closes the second valve device 206, and brings the pressure vessel 202 and the pressure pump 203 into communication. Next, the control unit 204 drives the pressurizing pump 203 to start air supply. The supplied air is sent to the pressure vessel 202 via the first valve device 205 to increase the pressure inside the pressure vessel 202. The control unit 204 drives the pressurizing pump 203 for a predetermined time, for example, 70 seconds. After 70 seconds, for example, at time t22, the control unit 204 closes the first valve device 205, opens the second valve device 206, and ends pressurization to the pressure vessel 202.

時刻ｔ２２からカフ２０１と上腕部の間のデッドボリュームを減少させるための加圧が行われ、時刻ｔ２３で圧力センサ２０７が、カフ２０１の内部の圧力が所定の値、例えば５０ｍｍＨｇに達したことを検出すると、制御部２０４は第１弁装置２０５を開く。すると、圧力容器２０２とカフ２０１は連通され、圧力容器２０２に蓄えられていた高い圧力の圧縮空気がカフ２０１へ流れ込み、カフ２０１の圧力を一気に高くする。このとき圧力センサ２０７は、圧力容器２０２からカフ２０１へ空気が流れこむ圧力の変化を検出している。制御部２０４は、圧力センサ２０７の検出した圧力の変化を監視しており、時刻ｔ２４で圧力の変化が所定の値に収まったことを検出すると、カフ２０１の内部の圧力が安定したと判断して、第１弁装置２０５を閉じる。以後の動作は本実施形態１と同様である。   From time t22, pressurization is performed to reduce the dead volume between the cuff 201 and the upper arm, and at time t23, the pressure sensor 207 confirms that the pressure inside the cuff 201 has reached a predetermined value, for example, 50 mmHg. When detected, the control unit 204 opens the first valve device 205. Then, the pressure vessel 202 and the cuff 201 are communicated with each other, and the high pressure compressed air stored in the pressure vessel 202 flows into the cuff 201, and the pressure of the cuff 201 is increased at a stretch. At this time, the pressure sensor 207 detects a change in pressure at which air flows from the pressure vessel 202 to the cuff 201. The control unit 204 monitors the change in pressure detected by the pressure sensor 207. When the control unit 204 detects that the change in pressure falls within a predetermined value at time t24, the control unit 204 determines that the pressure inside the cuff 201 is stable. Then, the first valve device 205 is closed. Subsequent operations are the same as those in the first embodiment.

本実施形態では、圧力容器２０２の圧力を圧力センサで測定せず、圧力センサ２０７は第２弁装置２０６のカフ２０１側に設けている。例えば、圧力センサ２０７をカフ２０１近傍に設ける必要がある場合、あるいは、第１弁装置２０５、第２弁装置２０６、第３弁装置２０８を独立した弁として構成しないような場合で第１弁装置２０５と第２弁装置２０６の連接部に圧力センサ２０７を設けられない場合などでも、圧力容器２０２の加圧を加圧ポンプ２０３の駆動時間により行っているので、実施形態１と同様の効果を得ることができる。   In the present embodiment, the pressure of the pressure vessel 202 is not measured by the pressure sensor, and the pressure sensor 207 is provided on the cuff 201 side of the second valve device 206. For example, when it is necessary to provide the pressure sensor 207 in the vicinity of the cuff 201, or when the first valve device 205, the second valve device 206, and the third valve device 208 are not configured as independent valves, the first valve device Even when the pressure sensor 207 is not provided at the connecting portion between the second valve device 206 and the second valve device 206, the pressure vessel 202 is pressurized by the driving time of the pressurizing pump 203. Can be obtained.

［実施形態３］
本実施形態は、圧力センサを２つ使用した例である。他の実施形態と重複する説明は省略する。本実施形態について図３により説明する。本実施形態の血圧計は、生体の上腕部に巻くカフ３０１、カフ３０１の圧力を高めるための空気を溜める圧力容器３０２、カフ３０１と圧力容器３０２に空気を送ってそれぞれの内部の圧力を高めるための加圧ポンプ３０３及び制御部３０４を備える。カフ３０１、圧力容器３０２及び加圧ポンプ３０３は空気の流路となるチューブで接続されている。チューブの途中には第１弁装置３０５、第２弁装置３０６が設けられている。 [Embodiment 3]
This embodiment is an example in which two pressure sensors are used. The description which overlaps with other embodiment is abbreviate | omitted. This embodiment will be described with reference to FIG. The sphygmomanometer according to the present embodiment includes a cuff 301 wound around the upper arm of a living body, a pressure container 302 that stores air for increasing the pressure of the cuff 301, and air is sent to the cuff 301 and the pressure container 302 to increase the internal pressure of each. A pressurizing pump 303 and a control unit 304 are provided. The cuff 301, the pressure vessel 302, and the pressurizing pump 303 are connected by a tube serving as an air flow path. A first valve device 305 and a second valve device 306 are provided in the middle of the tube.

カフ３０１、圧力容器３０２、加圧ポンプ３０３の間を接続するチューブの途中には、制御部３０４により開閉が制御される第１弁装置３０５及び第２弁装置３０６が設けられている。第１弁装置３０５は、その一端がチューブを介して加圧ポンプ３０３に接続され、その他端はチューブを介して圧力容器３０２に接続されている。第２弁装置３０６は、その一端がチューブを介して加圧ポンプ３０３に接続され、その他端はチューブを介してカフ３０１に接続されている。第１弁装置３０５の加圧ポンプ３０３側の一端と第２弁装置３０６の加圧ポンプ３０３側の一端とは連結されており、加圧ポンプ３０３に接続されている。   A first valve device 305 and a second valve device 306 whose opening and closing are controlled by the control unit 304 are provided in the middle of the tube connecting the cuff 301, the pressure vessel 302, and the pressure pump 303. One end of the first valve device 305 is connected to the pressurizing pump 303 via a tube, and the other end is connected to the pressure vessel 302 via a tube. One end of the second valve device 306 is connected to the pressurizing pump 303 via a tube, and the other end is connected to the cuff 301 via a tube. One end of the first valve device 305 on the pressurizing pump 303 side and one end of the second valve device 306 on the pressurizing pump 303 side are connected and connected to the pressurizing pump 303.

第１弁装置３０５の圧力容器３０２側の一端に、圧力容器３０２の圧力を測定する圧力センサ３０７が設けられている。第２弁装置３０６のカフ３０１側の一端に圧力センサ３１１と排気用の第３弁装置３０８が設けられている。圧力センサ３０７、３１１により測定された圧力データは制御部３０４へ入力されて、各部の制御に用いられる。制御部３０４は圧力センサ３１１からのデータに基づいて血圧の測定も行う。制御部３０４には、ユーザにより設定された時刻情報に基づいて、加圧ポンプ３０３の駆動を開始する第１時刻ｔ３１を計算して決定するスケジューリング部３４１と第１時刻ｔ３１を記憶するメモリ３４２を有している。第１時刻ｔ３１は、加圧ポンプ３０３を駆動して圧力容器３０２の内部圧力を所定の圧力、例えば３００ｍｍＨｇに高めるのに要する時間などを考慮して、ユーザが設定した測定時刻の所定時間前に設定される。   A pressure sensor 307 for measuring the pressure in the pressure vessel 302 is provided at one end of the first valve device 305 on the pressure vessel 302 side. A pressure sensor 311 and a third valve device 308 for exhaust are provided at one end of the second valve device 306 on the cuff 301 side. The pressure data measured by the pressure sensors 307 and 311 is input to the control unit 304 and used for controlling each unit. The control unit 304 also measures blood pressure based on data from the pressure sensor 311. The control unit 304 includes a scheduling unit 341 that calculates and determines a first time t31 for starting driving of the pressurizing pump 303 based on time information set by a user, and a memory 342 that stores the first time t31. Have. The first time t31 is a predetermined time before the measurement time set by the user in consideration of the time required to drive the pressure pump 303 to increase the internal pressure of the pressure vessel 302 to a predetermined pressure, for example, 300 mmHg. Is set.

第１時刻ｔ３１になると、制御部３０４は血圧測定の準備を開始する。制御部３０４は、第１弁装置３０５を開き、第２弁装置３０６を閉じ、圧力容器３０２と加圧ポンプ３０３を連通させた状態にする。次に、制御部３０４は、加圧ポンプ３０３を駆動して空気の送気を開始する。送気された空気は第１弁装置３０５を介して圧力容器３０２に送られて、圧力容器３０２の内部の圧力を高める。   At the first time t31, the control unit 304 starts preparation for blood pressure measurement. The control unit 304 opens the first valve device 305, closes the second valve device 306, and brings the pressure vessel 302 and the pressurizing pump 303 into communication. Next, the control unit 304 drives the pressurizing pump 303 to start air supply. The supplied air is sent to the pressure vessel 302 via the first valve device 305 to increase the pressure inside the pressure vessel 302.

圧力センサ３０７の出力には圧力容器３０２の圧力値が常に出力される。圧力センサ３０７の測定した圧力値は制御部３０４に送られる。圧力容器３０２の内部の圧力が所定の圧力、例えば、３００ｍｍＨｇに達したことを時刻ｔ３２で圧力センサ３０７が検出すると、制御部３０４は圧力センサ３０７からの出力を受け取る。制御部３０４は、時刻ｔ３２で第1弁装置３０５を閉じ、第２弁装置３０６を開くように第１弁装置３０５、第２弁装置３０６を制御する。   The pressure value of the pressure vessel 302 is always output as the output of the pressure sensor 307. The pressure value measured by the pressure sensor 307 is sent to the control unit 304. When the pressure sensor 307 detects that the pressure inside the pressure vessel 302 has reached a predetermined pressure, for example, 300 mmHg, at time t32, the control unit 304 receives an output from the pressure sensor 307. The control unit 304 controls the first valve device 305 and the second valve device 306 so as to close the first valve device 305 and open the second valve device 306 at time t32.

時刻ｔ３２から加圧ポンプ３０３はカフ３０１への送気を開始し、血圧の測定時刻前にカフ３０１の内部の圧力を高める。この加圧ポンプ３０３による加圧は、カフ３０１と上腕部の間のデッドボリュームを減少させるために行われる。この加圧は、カフ３０１が上腕部を阻血する前に終了する。終了は、カフ３０１の内部の圧力で判断される。時刻ｔ３３で圧力センサ３１１が、カフ３０１の内部の圧力が所定の値、例えば５０ｍｍＨｇに達したことを検出すると、制御部３０４は第１弁装置３０５を開く。すると、圧力容器３０２とカフ３０１は連通し、圧力容器３０２に蓄えられていた高い圧力の圧縮空気がカフ３０１へ流れ込み、カフ３０１の圧力を一気に高くする。このとき圧力センサ３１１は、圧力容器３０２からカフ３０１へ空気が流れこむ圧力の変化を検出している。制御部３０４は、圧力センサ３１１の検出した圧力の変化を監視しており、圧力の変化が所定の値に収まって安定したことを検出すると、時刻ｔ３４で制御部３０４は、第１弁装置３０５を閉じる。   From time t32, the pressurization pump 303 starts air supply to the cuff 301 and increases the pressure inside the cuff 301 before the blood pressure measurement time. The pressurization by the pressurization pump 303 is performed in order to reduce the dead volume between the cuff 301 and the upper arm. This pressurization ends before the cuff 301 blocks the upper arm. The end is determined by the pressure inside the cuff 301. When the pressure sensor 311 detects that the pressure inside the cuff 301 has reached a predetermined value, for example, 50 mmHg, at time t33, the control unit 304 opens the first valve device 305. Then, the pressure vessel 302 and the cuff 301 communicate with each other, and high-pressure compressed air stored in the pressure vessel 302 flows into the cuff 301, and the pressure of the cuff 301 is increased at a stretch. At this time, the pressure sensor 311 detects a change in pressure at which air flows from the pressure vessel 302 to the cuff 301. The control unit 304 monitors the change in pressure detected by the pressure sensor 311. When the control unit 304 detects that the change in pressure falls within a predetermined value and is stable, the control unit 304 detects the first valve device 305 at time t34. Close.

時刻ｔ３４で圧力センサ３１１が検出した圧力が最高血圧を測定するのに十分に高い圧力であれば、制御部３０４は血圧測定を開始する。圧力センサ３１１が検出した圧力が、最高血圧を測定するのには低く、圧力が不足していると制御部３０４が判断した場合には、制御部３０４は時刻ｔ３４から加圧ポンプ３０３をさらに駆動する。圧力センサ３１１が所定の圧力を時刻ｔ３５で検出すると、制御部３０４は血圧測定を開始する。制御部３０４は、圧力センサ３１１から入力される圧力変化から脈波を検出・処理して血圧測定を行う。   If the pressure detected by the pressure sensor 311 at time t34 is sufficiently high to measure the maximum blood pressure, the control unit 304 starts blood pressure measurement. When the control unit 304 determines that the pressure detected by the pressure sensor 311 is low for measuring the maximum blood pressure and the pressure is insufficient, the control unit 304 further drives the pressure pump 303 from time t34. To do. When the pressure sensor 311 detects a predetermined pressure at time t35, the control unit 304 starts blood pressure measurement. The control unit 304 detects and processes a pulse wave from the pressure change input from the pressure sensor 311 to measure blood pressure.

本実施形態では、カフ３０１の圧力を測定する圧力センサ３１１と圧力容器３０２の内部の圧力を測定する圧力センサ３０７を持つ。例えば、圧力センサ３１１をカフ近傍に配置する必要があるような場合にも、圧力容器３０２の圧力を圧力センサ３０７で測定可能である。また圧力容器３０２内の圧力の柔軟な制御が可能になり、例えば、圧力容器３０２内の圧力が常に確認可能であるため、カフ３０１の予備加圧中に圧力容器内の圧力が下がった場合に、圧力容器３０２の再加圧なども可能となる。更に、圧力センサ３０７は所定の圧力になったかどうか検出するだけなので、コスト的に有利な低精度なセンサを用いることも可能である。   In this embodiment, a pressure sensor 311 for measuring the pressure of the cuff 301 and a pressure sensor 307 for measuring the pressure inside the pressure vessel 302 are provided. For example, even when the pressure sensor 311 needs to be arranged near the cuff, the pressure of the pressure vessel 302 can be measured by the pressure sensor 307. In addition, the pressure in the pressure vessel 302 can be controlled flexibly. For example, when the pressure in the pressure vessel 302 is reduced during the pre-pressurization of the cuff 301 because the pressure in the pressure vessel 302 can always be confirmed. In addition, the pressure vessel 302 can be re-pressurized. Furthermore, since the pressure sensor 307 only detects whether or not a predetermined pressure has been reached, a low-accuracy sensor that is advantageous in terms of cost can be used.

［実施形態４］
血圧計の形態としては図４（ａ）、（ｂ）に示すように、圧力容器４０２を血圧計本体４０３に対して分離できる構造にできる。また、図４（ｂ）に示すように血圧計本体４０３とカフ４０１を一体にしてもよい。圧力容器４０２は、血圧計本体４０３に対して着脱可能にしてもよい。圧力容器４０２が、血圧計本体４０３と接続する部分にはノーマルクローズの弁を設けておく。圧力容器４０２の内部の圧力を高めたまま、圧力容器４０２だけ取り外しておき、血圧測定時に血圧計本体４０３に接続することができる。また、通常に血圧計を使いたいときには、圧力容器４０２を外しておけるのでかさばらないで済む。 [Embodiment 4]
As a form of the sphygmomanometer, as shown in FIGS. 4A and 4B, the pressure vessel 402 can be separated from the sphygmomanometer main body 403. Further, as shown in FIG. 4B, the sphygmomanometer body 403 and the cuff 401 may be integrated. The pressure vessel 402 may be detachable from the blood pressure monitor main body 403. A normally closed valve is provided at a portion where the pressure vessel 402 is connected to the blood pressure monitor main body 403. While the pressure inside the pressure vessel 402 is increased, only the pressure vessel 402 can be removed and connected to the sphygmomanometer body 403 during blood pressure measurement. Further, when it is desired to use a sphygmomanometer normally, the pressure vessel 402 can be removed so that it is not bulky.

Claims (12)

加圧ポンプと、圧力容器と、カフと、制御部とを備えた血圧計であって、
前記制御部は、血圧測定をする時刻情報を入力する入力部と、前記時刻情報に基づいて前記加圧ポンプの駆動を開始する第１時刻を決定する処理部とを有し、
前記制御部は、前記第１時刻に、前記加圧ポンプと前記圧力容器とを連通させた状態で、前記加圧ポンプの駆動を開始することにより前記圧力容器の内部の圧力を高め、その後、前記圧力容器と前記カフとを連通させた状態とすることにより、前記圧力容器から前記カフに空気の供給を開始し、その後、血圧の測定を開始する
ことを特徴とする血圧計。 A sphygmomanometer including a pressurizing pump, a pressure vessel, a cuff, and a control unit;
The control unit includes an input unit that inputs time information for blood pressure measurement, and a processing unit that determines a first time to start driving the pressurization pump based on the time information.
The control unit increases the pressure inside the pressure vessel by starting driving the pressure pump with the pressure pump and the pressure vessel communicating with each other at the first time, A sphygmomanometer, wherein the pressure vessel and the cuff are in communication with each other to start supply of air from the pressure vessel to the cuff and then start measuring blood pressure. 前記第１時刻に前記加圧ポンプと前記圧力容器とを連通させた状態で、前記加圧ポンプの駆動を開始することにより前記圧力容器の内部の圧力を高めた後、前記制御部は、前記加圧ポンプと前記カフとを連通させて、前記加圧ポンプを駆動し、前記カフの内部の圧力を所定の圧力に高めることを特徴とする請求項１に記載の血圧計。   After increasing the pressure inside the pressure vessel by starting driving the pressure pump in a state where the pressure pump and the pressure vessel are in communication with each other at the first time, the control unit The sphygmomanometer according to claim 1, wherein the pressurizing pump and the cuff are communicated to drive the pressurizing pump to increase the pressure inside the cuff to a predetermined pressure. 前記制御部は、前記第１時刻までに前記加圧ポンプと前記カフとを連通させて、前記加圧ポンプを駆動し、前記カフの内部の圧力を所定の圧力に高めることを特徴とする請求項１に記載の血圧計。   The said control part makes the said pressurization pump and the said cuff communicate by the said 1st time, drives the said pressurization pump, and raises the pressure inside the said cuff to predetermined pressure, It is characterized by the above-mentioned. Item 2. The blood pressure monitor according to Item 1. 前記加圧ポンプと前記カフとを連通させて、前記加圧ポンプを駆動し、前記カフの内部の到達圧力が最低血圧を上限とした前記所定の圧力に達した後に、前記圧力容器から前記カフに空気を供給することを特徴とする請求項２または３に記載の血圧計。   The pressurizing pump and the cuff are communicated to drive the pressurizing pump, and after the ultimate pressure inside the cuff reaches the predetermined pressure with a minimum blood pressure as an upper limit, the cuff is removed from the pressure vessel. The sphygmomanometer according to claim 2, wherein air is supplied to the blood pressure monitor. 前記圧力容器と前記カフとを連通させた状態とすることにより、前記圧力容器から前記カフに空気を供給した状態で、前記カフの内部の圧力が血圧測定をするのに不足な場合ないし不足が想定される場合は、前記制御部は、前記加圧ポンプと前記カフを連通させた状態で、前記加圧ポンプを駆動して前記カフの内部の圧力を高めることを特徴とする請求項１ないし４のいずれか１項に記載の血圧計。   When the pressure vessel and the cuff are in communication with each other, the pressure inside the cuff is insufficient to measure blood pressure in a state where air is supplied from the pressure vessel to the cuff. In the case where it is assumed, the control unit drives the pressure pump to increase the pressure inside the cuff in a state where the pressure pump and the cuff are in communication with each other. 5. The blood pressure monitor according to any one of 4 above. 前記加圧ポンプに接続された流路に一端が接続され、他端が前記圧力容器に接続された流路に接続されている第１弁装置と、前記加圧ポンプに接続された流路に一端が接続され、他端が前記カフに接続された流路に接続された第２弁装置とが設けられ、前記第１弁装置の前記一端と前記第２弁装置の前記一端に接続された流路は連結されており、
前記制御部は、前記加圧ポンプと前記圧力容器を連通させるときは、前記第１弁装置を開き、前記第２弁装置を閉じ、前記圧力容器と前記カフを連通させるときは、前記第１弁装置及び第２弁装置を開き、前記加圧ポンプと前記カフを連通させるときは、前記第１弁装置を閉じ、前記第２弁装置を開く
ことを特徴とする請求項１ないし５のいずれか１項に記載の血圧計。 A first valve device having one end connected to the flow path connected to the pressure pump and the other end connected to the flow path connected to the pressure vessel; and a flow path connected to the pressure pump. A second valve device connected to a flow path having one end connected and the other end connected to the cuff, and connected to the one end of the first valve device and the one end of the second valve device. The flow paths are connected,
The controller opens the first valve device when the pressure pump communicates with the pressure vessel, closes the second valve device, and communicates the pressure vessel with the cuff when the first valve device is communicated. The valve device and the second valve device are opened, and when the pressurizing pump and the cuff are communicated, the first valve device is closed and the second valve device is opened. The sphygmomanometer according to claim 1. 前記第１弁装置はノーマルクローズであることを特徴とする請求項６に記載の血圧計。   The sphygmomanometer according to claim 6, wherein the first valve device is normally closed. 前記第１弁装置の前記一端と前記第２弁装置の前記一端とを連結する前記流路に、血圧を測定するための圧力センサを設けたことを特徴とする請求項６または７に記載の血圧計。   8. The pressure sensor for measuring blood pressure is provided in the flow path connecting the one end of the first valve device and the one end of the second valve device, according to claim 6. Sphygmomanometer. 前記制御部は、前記第１時刻に開始する前記加圧ポンプの駆動により、前記圧力容器の内部の圧力を決められた圧力まで高めることを特徴とする請求項１ないし８のいずれか１項に記載の血圧計。   The said control part raises the pressure inside the said pressure vessel to the determined pressure by the drive of the said pressurization pump which starts at the said 1st time, The any one of Claim 1 thru | or 8 characterized by the above-mentioned. The sphygmomanometer described. 前記制御部は、前記第１時刻から前記加圧ポンプを決められた時間、駆動することにより前記圧力容器の内部の圧力を高めることを特徴とする請求項１ないし８のいずれか１項に記載の血圧計。   The said control part raises the pressure inside the said pressure vessel by driving the said pressurization pump for the predetermined time from the said 1st time, The Claim 1 thru | or 8 characterized by the above-mentioned. Blood pressure monitor. 前記圧力容器は着脱可能であることを特徴とする請求項１ないし１０のいずれか１項に記載の血圧計。   The sphygmomanometer according to claim 1, wherein the pressure container is detachable. 前記加圧ポンプは、圧電素子により駆動されるポンプであることを特徴とする請求項１ないし１１のいずれか１項に記載の血圧計。   The sphygmomanometer according to claim 1, wherein the pressurizing pump is a pump driven by a piezoelectric element.
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