JP3546838B2 - Wrist sphygmomanometer - Google Patents

Wrist sphygmomanometer Download PDF

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Publication number
JP3546838B2
JP3546838B2 JP2000358261A JP2000358261A JP3546838B2 JP 3546838 B2 JP3546838 B2 JP 3546838B2 JP 2000358261 A JP2000358261 A JP 2000358261A JP 2000358261 A JP2000358261 A JP 2000358261A JP 3546838 B2 JP3546838 B2 JP 3546838B2
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JP
Japan
Prior art keywords
wrist
height
measuring
heart
elbow
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.)
Expired - Fee Related
Application number
JP2000358261A
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Japanese (ja)
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JP2001178694A (en
Inventor
学 浜元
陽一 伊勢
幸一 石野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP2000358261A priority Critical patent/JP3546838B2/en
Publication of JP2001178694A publication Critical patent/JP2001178694A/en
Application granted granted Critical
Publication of JP3546838B2 publication Critical patent/JP3546838B2/en
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Expired - Fee Related legal-status Critical Current

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Description

【0001】
【発明の属する技術分野】
本発明は手首に装着されてこの部分で血圧を測定する手首血圧計に関するものである。
【0002】
【従来の技術】
上腕で血圧を測定する場合にはさほど問題とならないが、手首において血圧を測定する時に問題となるのが測定時の手首の高さである。心臓位置よりも高かったり低かったりすると、水頭圧差の影響が血圧の測定結果にあらわれてしまうために、血圧計を装着した手首の高さを心臓の高さにほぼ一致させておかなくてはならない。
【0003】
このために、傾斜面を有する空気枕を用意して、テーブル上に肘をつく時に、空気枕によって腕の曲げ角度を規制し、これによって手首に装着された手首血圧計の高さがほぼ心臓高さとなるようにすることが行われている。
【0004】
【発明が解決しようとする課題】
しかし、空気枕では腕の曲げ角度を厳密に規制することはできず、肘をつく位置が少しずれただけでも手首の高さが大きく異なってしまうものであり、正確な測定を確実に行えるようにはならない。
【0005】
本発明はこのような点に鑑み為されたものであり、その目的とするところは手首の高さを心臓高さに正確に合わせて手首での血圧測定を行うことができる手首血圧計を提供するにある。
【0006】
【課題を解決するための手段】
しかして本発明は、被測定者の手首に装着される手首血圧計であって、被測定者の肘が置かれる面からの高さを距離として測定する測定手段と、測定高さを肘が置かれる面から心臓までの高さである所定値と比較する判定手段と、判定手段による判定結果を被測定者に示す報知手段とを備えていることに特徴を有するものである。
【0007】
本発明によれば、高さ位置が心臓高さにあるかどうかを検知して報知することができるために、被測定者が手首を心臓高さ付近に位置させることを容易とするとともに、正確な血圧測定が行えるものとなる。
【0008】
【発明の実施の形態】
以下本発明を図示の実施例に基づいて詳述すると、この手首血圧計Bは、被測定者の手首に装着されるカフ帯2に本体1を取り付けているもので、この本体1内には、カフ帯2の加減圧を行う加減圧装置11と、血圧測定部12と、測定した血圧値を表示するための血圧表示部13、そしてこれらを制御する制御回路3のほか、被測定者の肘が置かれた面から手首血圧計までの高さを測定する測定部4と、所定値記憶部5と、表示部6とを備えている。表示部6は測定部4によって測定した高さと所定値記憶部5にある所定値とを制御回路3が比較した結果を表示する報知手段となっている。
【0009】
ここにおいて、測定部4は、被測定者の肘が置かれている面から被測定者の手首に巻かれている手首血圧計Bまでの高さを距離として測定するものであり、図2に一例を示す。ここでは加速度センサーであるところのジャイロ40を測定部4として設けている。すなわち、手首血圧計Bを被測定者自身が手首に装着する場合、肘から先の前腕をテーブルにつけた状態で装着を行い、この後、前腕を起こして手首血圧計Bが装着された手首が心臓の高さとなるようにするのであるが、この前腕を起こす時の手首の上下方向の移動距離Lをジャイロ40によって測定するのである。ジャイロ40で直接検出することができるのは加速度αであるが、この加速度αと時間とから移動距離Lを得ることができる。
【0010】
そしてジャイロ40から出力された上記移動距離Lは、所定値記憶部5において記憶されている心臓高さと比較され、両者が一致すれば表示部6にこの旨が表示されるために、被測定者は手首血圧計Bが装着されている手首が心臓と同じ高さにあるかどうかを知ることができる。この判定結果の出力で、血圧測定動作がスタートするようにしておくと、操作の手間がなくなって好ましい。
【0011】
なお、所定値記憶部5に記憶させた心臓高さは、たとえばメジャー等を利用することで、血圧測定時に肘が置かれる面から心臓までの高さを測定した時の値を入力できるようにしておいてもよいが、ここでは肘が置かれる面からメジャー等を立てて、測定した心臓高さに手首がくるまで前腕を起こした時の測定部4の測定結果が、較正スイッチ7を押した時に取り込まれるようにして具体的な数値入力操作を不要としている。このような測定値を所定値記憶部5に取り込む構成は、次に述べる実施例においても採用することができる。
【0012】
図3に示す実施例は、被測定者の肘が置かれている面から被測定者の手首に巻かれている手首血圧計Bまでの高さを直接検出する測定部4として、超音波式、あるいは光学式の距離測定器41を採用したもので、肘が置かれる面までの上下方向距離、つまりは手首の高さを距離測定器41で測定し、この測定値を所定値記憶部5に記憶させた心臓高さの値と比較することで、手首が心臓と同じ高さにあるかどうかを表示部6に表示させている。
【0013】
高さが適切かどうかだけでなく、低すぎることや高すぎることも判定して、これをレベルメータや複数の発光ダイオードの点灯で報知するようにしてもよい。
【0014】
報知手段はブザーのようなものであってもよい。また、図4〜図5に示すような枕C、Dの使用を妨げるものではない。図5に示す枕Cは、上面の傾斜角度を止め金91の係止位置の変更で調節することができるようにしたものを示している。
【0015】
【発明の効果】
以上のように本発明においては、手首が心臓と同じ高さにあるかどうかを被測定者の肘が置かれる面からの高さを距離として検知して報知することができるものであり、このために、被測定者が手首を心臓高さ付近に位置させることが容易であるとともに、手首が心臓と同じ高さにない時の水頭圧差の影響を避けた正確な血圧測定を常に行えるものである

【図面の簡単な説明】
【図1】一実施例のブロック回路図である。
【図2】同上の一例を示す側面図である。
【図3】同上の他例を示す側面図である。
【図4】枕を示す側面図である。
【図5】枕の他例を示すもので、 (a) は側面図、 (b) は斜視図である。
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wrist sphygmomanometer that is worn on a wrist and measures blood pressure at this part.
[0002]
[Prior art]
When measuring blood pressure with the upper arm, there is not much problem, but when measuring blood pressure with the wrist, the problem is the height of the wrist at the time of measurement. The height of the wrist with the sphygmomanometer must be approximately equal to the height of the heart because the effect of the head pressure difference will appear in the blood pressure measurement result if it is higher or lower than the heart position .
[0003]
For this purpose, an air pillow having an inclined surface is prepared, and when the elbow is placed on the table, the bending angle of the arm is regulated by the air pillow, so that the height of the wrist blood pressure monitor attached to the wrist is substantially equal to the heart. It is done to be height.
[0004]
[Problems to be solved by the invention]
However, with air pillows, the bending angle of the arm cannot be strictly controlled, and even if the position of the elbow is slightly shifted, the height of the wrist will differ greatly, so that accurate measurement can be reliably performed. It does not become.
[0005]
The present invention has been made in view of such a point, and an object of the present invention is to provide a wrist sphygmomanometer capable of performing blood pressure measurement on a wrist by accurately adjusting the height of the wrist to the height of the heart. To be.
[0006]
[Means for Solving the Problems]
Thus, the present invention is a wrist sphygmomanometer worn on the wrist of a subject, a measuring means for measuring the height from a surface on which the elbow of the subject is placed as a distance, and the elbow measuring the height. It is characterized in that it is provided with a judging means for comparing with a predetermined value which is a height from the placed surface to the heart , and a notifying means for showing a result of judgment by the judging means to a person to be measured.
[0007]
According to the present invention, since it is possible to detect and notify whether the height position is at the heart height, it is easy for the subject to position the wrist near the heart height and accurate. Blood pressure measurement can be performed.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. This wrist sphygmomanometer B has a main body 1 attached to a cuff band 2 attached to a wrist of a subject. , A blood pressure measuring unit 12, a blood pressure measuring unit 12, a blood pressure display unit 13 for displaying a measured blood pressure value, and a control circuit 3 for controlling these devices. The apparatus includes a measuring unit 4 for measuring the height from the surface on which the elbow is placed to the wrist sphygmomanometer, a predetermined value storage unit 5, and a display unit 6. The display unit 6 is a notification unit that displays the result of the comparison between the height measured by the measuring unit 4 and the predetermined value stored in the predetermined value storage unit 5 by the control circuit 3.
[0009]
Here, the measuring unit 4 measures, as a distance, the height from the surface on which the subject's elbow is placed to the wrist sphygmomanometer B wound around the subject's wrist . An example is shown. Here, a gyro 40 which is an acceleration sensor is provided as the measuring unit 4. That is, when the subject wears the wrist sphygmomanometer B on his / her wrist, the wrist to which the forearm is raised and the wrist sphygmomanometer B is worn is carried out with the forearm from the elbow attached to the table. The height of the wrist is set at the height of the heart, and the vertical movement distance L of the wrist when the forearm is raised is measured by the gyro 40. The gyro 40 can directly detect the acceleration α, but the movement distance L can be obtained from the acceleration α and time.
[0010]
Then, the moving distance L output from the gyro 40 is compared with the heart height stored in the predetermined value storage unit 5, and if the two coincide, the fact is displayed on the display unit 6. Can determine whether the wrist on which the wrist sphygmomanometer B is worn is at the same height as the heart. It is preferable that the blood pressure measurement operation be started with the output of the determination result, because the operation is not troublesome.
[0011]
Note that the heart height stored in the predetermined value storage unit 5 can be input using a measure or the like, for example, when a height from the surface on which the elbow is placed to the heart at the time of blood pressure measurement is measured. Here, the measurement result of the measuring unit 4 when the forearm is raised until the wrist comes to the measured heart height with the measure or the like raised from the surface on which the elbow is placed, and the calibration switch 7 is pressed. It is taken in at the time, so that a specific numerical input operation is not required. Such a configuration in which the measured values are stored in the predetermined value storage unit 5 can be adopted also in the embodiments described below.
[0012]
The embodiment shown in FIG. 3 is an ultrasonic type as the measuring unit 4 which directly detects the height from the surface on which the subject's elbow is placed to the wrist sphygmomanometer B wound around the subject's wrist. Alternatively, an optical distance measuring device 41 is employed, and the vertical distance to the surface on which the elbow is placed, that is, the height of the wrist, is measured by the distance measuring device 41, and the measured value is stored in the predetermined value storage section 5. Is displayed on the display unit 6 by comparing with the value of the heart height stored in the display unit 6 as to whether the wrist is at the same height as the heart.
[0013]
Not only whether the height is appropriate but also whether the height is too low or too high may be determined, and this may be notified by lighting of a level meter or a plurality of light emitting diodes.
[0014]
The notification means may be like a buzzer. In addition, the use of the pillows C and D as shown in FIGS . The pillow C shown in FIG. 5 shows a configuration in which the inclination angle of the upper surface can be adjusted by changing the locking position of the stopper 91.
[0015]
【The invention's effect】
As described above, in the present invention, whether or not the wrist is at the same height as the heart can be notified by detecting the height from the surface on which the subject's elbow is placed as a distance , and Therefore, it is easy for the subject to place the wrist near the heart height, and accurate blood pressure measurement can always be performed while avoiding the effect of the head pressure difference when the wrist is not at the same height as the heart. is there.
[Brief description of the drawings]
FIG. 1 is a block circuit diagram of one embodiment.
FIG. 2 is a side view showing an example of the above.
FIG. 3 is a side view showing another example of the above.
FIG. 4 is a side view showing a pillow.
[5] shows another example of a pillow, (a) shows the side view, (b) is a perspective view.

Claims (3)

被測定者の手首に装着される手首血圧計であって、被測定者の肘が置かれる面からの高さを距離として測定する測定手段と、測定高さを肘が置かれる面から心臓までの高さである所定値と比較する判定手段と、判定手段による判定結果を被測定者に示す報知手段とを備えていることを特徴とする手首血圧計。A wrist sphygmomanometer to be worn on the wrist of the subject, measuring means for measuring the height from the surface on which the elbow of the subject is placed as a distance, and measuring the height from the surface on which the elbow is placed to the heart A wrist sphygmomanometer , comprising: a determination unit that compares the determination value with a predetermined value that is the height of the wrist; 測定手段が加速度センサーとこの加速度センサーによって検出される加速度から上下方向の移動距離を演算する演算回路とからなることを特徴とする請求項1記載の手首血圧計。 2. The wrist sphygmomanometer according to claim 1, wherein the measuring means includes an acceleration sensor and a calculation circuit for calculating a vertical movement distance from the acceleration detected by the acceleration sensor . 測定手段が肘が置かれる面までの距離を超音波や光によって測定する距離測定手段であることを特徴とする請求項1記載の手首血圧計。 2. The wrist sphygmomanometer according to claim 1, wherein the measuring means is a distance measuring means for measuring a distance to a surface on which the elbow is placed by ultrasonic waves or light .
JP2000358261A 2000-11-24 2000-11-24 Wrist sphygmomanometer Expired - Fee Related JP3546838B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000358261A JP3546838B2 (en) 2000-11-24 2000-11-24 Wrist sphygmomanometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000358261A JP3546838B2 (en) 2000-11-24 2000-11-24 Wrist sphygmomanometer

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP29506293A Division JP3363224B2 (en) 1993-11-25 1993-11-25 Wrist sphygmomanometer

Publications (2)

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JP2001178694A JP2001178694A (en) 2001-07-03
JP3546838B2 true JP3546838B2 (en) 2004-07-28

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5884256B2 (en) * 2010-05-19 2016-03-15 セイコーエプソン株式会社 Blood pressure measuring device and blood pressure measuring method
JP5857810B2 (en) 2012-03-09 2016-02-10 オムロンヘルスケア株式会社 Blood pressure measuring device and control method thereof
JP6003471B2 (en) 2012-09-25 2016-10-05 オムロンヘルスケア株式会社 Blood pressure measuring device and control method thereof
JP6171768B2 (en) * 2013-09-13 2017-08-02 カシオ計算機株式会社 Dehydration state determination device
JP6477792B2 (en) * 2017-07-05 2019-03-06 カシオ計算機株式会社 Dehydration state determination device

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