JP2002034937A - Sphygmomanometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sphygmomanometer that can start blood pressure measurement anytime by an examinee's intention and can accurately measure blood pressure. SOLUTION: If an automatic measurement on/off switch part 6 is set off, when a measuring power source is set on irrespective of the inclination of a forearm AM, a control circuit 10 starts an operation of measurement at the same time as the measuring power source is set on, to offer a series of pressurization and depressurization control of pressurizing and depressurizing a cuff band 2 via a pressurizing and depressurizing device 3, blood pressure measurement by a blood pressure measuring part 4, and after the measurement, control of displaying a blood pressure value as the measurement result on a blood pressure display part 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic sphygmomanometer for measuring blood pressure based on arterial pressure information of a wrist or a finger.

[0002]

2. Description of the Related Art In a sphygmomanometer, particularly one that is worn on a wrist or a finger, it is necessary to adjust the height of the wrist or finger to be measured to the height of the heart in order to accurately measure blood pressure. . In view of such a point, conventionally, Japanese Patent Laid-Open No. 7-14397
As disclosed in No. 0, there is an apparatus that detects the inclination angle of the forearm of the subject and determines whether the sphygmomanometer matches the height of the subject's heart.

Further, in this conventional example, in order to improve the convenience, the blood pressure measurement is automatically started according to the judgment result from the inclination angle.

[0004]

However, there is the following problem in the case where the blood pressure measurement is automatically started according to the judgment result from the inclination angle.

In other words, the posture of the subject is various, such as sitting or sleeping, and the angle for adjusting to the heart is not constant. Therefore, if the blood pressure measurement is automatically started based on the angle, the height of the heart may not always be high depending on the posture. There was a problem that it was not always appropriate.

If the blood pressure measurement is automatically started based on the inclination angle, there is a possibility that the measurement may be started even when the subject does not intend, such as when the sphygmomanometer is carried.

Further, it has been practically difficult to exactly match the inclination angle of the forearm (the height of the subject's heart) which is appropriate for blood pressure measurement.

In order to change the forearm inclination angle from an inappropriate state to a blood pressure measurement to an appropriate state, for example, the forearm on which the sphygmomanometer is mounted is extended from the elbow (the sphygmomanometer is lower than the heart level). The patient bends (increases the height of the sphygmomanometer). At this time, the tilt angle of the forearm changes from an inappropriate state for blood pressure measurement to an appropriate state (the sphygmomanometer matches the height of the heart). However, if the blood pressure measurement is not started immediately, the subject continues to bend the elbow, and as a result, the forearm tilt angle is not appropriate for the blood pressure measurement during the blood pressure measurement (when the blood pressure monitor is Higher than the height), and there was a problem that accurate blood pressure measurement could not be performed.

Further, if the blood pressure measurement is started immediately when the inclination angle of the forearm is in a proper state for the blood pressure measurement from the beginning, the subject will take a resting posture for the blood pressure measurement. However, since blood pressure measurement has already been started, there has been a problem that accurate blood pressure measurement cannot be performed.

Further, even if the measurement is started with the forearm inclination angle appropriate for blood pressure measurement, if the forearm inclination angle becomes inappropriate for blood pressure measurement after that, if the measurement is continued, the improper There has been a problem that an accurate blood pressure measurement result will be shown to the subject.

[0011] More usually,. When the blood pressure measurement is completed and the measurement result is displayed, the blood pressure measurement is automatically started again when the inclination angle detecting means is operating. There was a problem that the measurement results could not be sufficiently confirmed and the usability was poor.

Further, as the inclination angle detecting means, one having a simple structure, small size, high detection accuracy and easy conversion into an electric signal has been desired.

[0013] The present invention has been made in view of the above problems, and an object of the present invention is to enable blood pressure measurement to be started at any time by a subject, and to accurately measure blood pressure. To provide a sphygmomanometer capable of measuring the blood pressure.

It is an object of the present invention to provide a sphygmomanometer capable of operating a tilt angle detecting means at will of a subject.

It is an object of the present invention that the subject does not have to adjust the inclination angle of the forearm exactly.
An object of the present invention is to provide a sphygmomanometer with improved usability.

It is a further object of the present invention to provide a sphygmomanometer with improved usability and measurement accuracy.

A fifth object of the present invention is to provide a sphygmomanometer with improved usability and measurement accuracy.

It is an object of the present invention to provide a sphygmomanometer in which the subject can immediately stop the operation for setting the inclination angle of the forearm to a state suitable for blood pressure measurement.

An object of the present invention is to provide a blood pressure monitor which can start blood pressure measurement after the subject takes a resting posture for blood pressure measurement.

An object of the present invention is to provide a sphygmomanometer capable of stopping the blood pressure measurement when the inclination angle of the forearm becomes inappropriate for the blood pressure measurement after the start of the blood pressure measurement. is there.

It is an object of the present invention that the subject can easily recognize whether the inclination angle of the forearm is appropriate or inappropriate for the blood pressure measurement, and as a result, accurate blood pressure measurement can be performed. A blood pressure monitor is provided.

The object of the invention of claim 10 is as follows.
An object of the present invention is to provide a sphygmomanometer in which a subject does not feel troublesome due to frequent switching of recognition contents.

The object of the invention according to claim 11 is as follows.
An object of the present invention is to provide a sphygmomanometer in which measurement is not interrupted during blood pressure measurement and the usability does not deteriorate.

The object of the twelfth aspect of the present invention is to
An object of the present invention is to provide a sphygmomanometer that can maintain a state in which a measurement result is displayed after blood pressure measurement is completed.

The object of the invention of claim 13 is as follows.
The inclination angle detecting means can be made small and simple in configuration, so even if it is integrated with the sphygmomanometer, the sphygmomanometer becomes large,
An object of the present invention is to provide a sphygmomanometer that does not have a complicated structure.

An object of a fourteenth aspect is to provide a sphygmomanometer in which the absolute value of the angle of inclination of the forearm can be easily found and the accuracy of blood pressure measurement can be repeatedly improved.

The object of the invention of claim 15 is that
An object of the present invention is to provide a sphygmomanometer that can improve measurement accuracy and convenience.

[0028] The object of the invention of claim 16 is as follows.
An object of the present invention is to provide a sphygmomanometer in which the absolute value of the inclination angle of the forearm can be accurately determined.

[0029]

According to a first aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a subject, and a tilt angle detected by the tilt angle detecting means. A blood pressure monitor that starts a blood pressure measurement operation based on the determination result of the blood pressure measurement device. It is characterized by comprising means for starting a measuring operation.

According to the second aspect of the present invention, the inclination angle detecting means for detecting the inclination angle of the forearm of the subject, and a judgment for judging whether or not the inclination angle detected by the inclination angle detecting means is appropriate for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means, and further comprises a selection means that can select whether or not to activate the inclination angle detection means.

According to the third aspect of the present invention, the inclination angle detecting means for detecting the inclination angle of the forearm of the person to be measured, and a judgment for judging whether or not the inclination angle detected by the inclination angle detecting means is suitable for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means, wherein the determination means has a predetermined width at an inclination angle that is appropriate for the blood pressure measurement. .

According to a fourth aspect of the present invention, in the third aspect of the present invention, the predetermined width is wider after the blood pressure measurement operation is started than when the blood pressure measurement operation is started.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the determination result that the blood pressure measurement operation is started is a substantially central value of the predetermined width.

According to the sixth aspect of the present invention, the inclination angle detecting means for detecting the inclination angle of the forearm of the subject, and a judgment for judging whether or not the inclination angle detected by the inclination angle detecting means is suitable for blood pressure measurement. And a blood pressure monitor that starts a blood pressure measurement operation based on the determination result of the determination means, wherein the blood pressure measurement operation is started immediately when the determination result of the determination means becomes inappropriate from inappropriate for blood pressure measurement. Features.

According to the seventh aspect of the present invention, the inclination angle detecting means for detecting the inclination angle of the forearm of the subject, and a judgment for judging whether or not the inclination angle detected by the inclination angle detecting means is suitable for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means. If the first determination result by the determination means is appropriate for blood pressure measurement, after a predetermined interval, The blood pressure measurement operation is started.

According to the eighth aspect of the present invention, the inclination angle detecting means for detecting the inclination angle of the forearm of the subject, and a judgment for judging whether or not the inclination angle detected by the inclination angle detecting means is suitable for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means, wherein the inclination angle detection means detects the inclination angle even after the blood pressure measurement operation is started, and the inclination angle detection means Is determined by the determination means as to whether or not the detected inclination angle is appropriate for blood pressure measurement.

According to a ninth aspect of the present invention, in the invention of the eighth aspect, there is provided a notifying means for notifying a person to be measured of a result of the judgment made by the judging means.

According to a tenth aspect of the present invention, in the ninth aspect of the present invention, when a different determination result is continuously obtained for a predetermined period, the different determination result is notified by the notification means.

According to an eleventh aspect of the present invention, in the eighth aspect of the present invention, the blood pressure measurement operation is continued even if the inclination angle detected by the inclination angle detecting means becomes an inappropriate inclination angle for blood pressure measurement. .

According to a twelfth aspect of the present invention, an inclination angle detecting means for detecting an inclination angle of the forearm of the subject and a judgment for judging whether or not the inclination angle detected by the inclination angle detecting means is suitable for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means, wherein the inclination angle detection means does not operate after the blood pressure measurement is completed.

According to the thirteenth aspect of the present invention, the inclination angle detecting means for detecting the inclination angle of the forearm of the subject, and a judgment for judging whether or not the inclination angle detected by the inclination angle detecting means is suitable for blood pressure measurement. Means for starting a blood pressure measurement operation based on the determination result of the determination means, wherein the inclination angle detection means has a mounting member, a shielding plate provided with a slit of a predetermined shape, It comprises a pendulum rotatably mounted on a member, and an optical sensor for projecting and receiving a light beam with the shielding plate interposed therebetween and projecting and receiving a light beam. The tilt angle is detected by enabling or disabling light reception.

According to a fourteenth aspect, in the thirteenth aspect, the inclination angle detecting means has a plurality of slits in the shielding plate, and counts the number of times the light sensor can switch between light emitting and receiving light. Means for performing the operation.

According to a fifteenth aspect, in the fourteenth aspect, there is provided a means for outputting a determination result that is appropriate for blood pressure measurement as a previous count number.

According to a sixteenth aspect, in the fourteenth aspect, the plurality of slits are provided only in a predetermined angle range.

[0045]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments. (Embodiment 1) FIG. 1 is a block diagram of this embodiment constituting a wrist sphygmomanometer. The wrist sphygmomanometer is shown in FIGS.
The blood pressure monitor main body 1 is attached to a cuff band 2 attached to the wrist of the subject M as shown in FIG. A blood pressure measurement unit 4, a blood pressure display unit 5 for displaying the measured blood pressure value, a tilt angle detection unit 7 for detecting a tilt angle θ of the forearm AM of the subject M, and a tilt angle detection unit 7. A power on / off unit 11, a determining unit 8 for determining whether or not the detected tilt angle θ of the tilt angle detecting unit 7 is appropriate, a notifying unit 9 for notifying the determination result, and automatically starting the measurement It comprises an automatic measurement on / off switch section 6 for selecting whether or not to perform, and a control circuit 10 for controlling these sections.

When blood pressure is measured using the wrist sphygmomanometer according to the present embodiment configured as described above, the person M to be measured is set as shown in FIG.
The forearm AM in the extended state is bent and raised as shown in (a), so that the wrist is at the height of the heart H as shown in FIG. At the time of automatic measurement, which will be described later, the inclination angle detection unit 7 serving as an angle sensor detects the inclination angle θ of the forearm AM.
Under the control of the control circuit 10 when the determining unit 8 determines that the forearm AM has been raised and the wrist has reached the height of the heart H based on the detected tilt angle θ of the tilt angle detecting unit 7. The blood pressure measurement operation is started, and the trouble of the operation is saved.

Next, the operation of this embodiment will be described with reference to the flowchart shown in FIG.

First, the subject M determines whether or not to perform automatic measurement (automatic start) with the automatic measurement on / off switch section 6, and then mounts the sphygmomanometer main body 1 on the wrist.

When the automatic measurement is not performed (the automatic measurement on / off switch 6 is off), the control circuit 1 is turned on when the measurement power is turned on regardless of the inclination angle of the forearm AM.
0 indicates that the blood pressure measurement operation is started at the same time when the measurement power is turned on, and a series of pressurization and depressurization control of pressurization and depressurization of the cuff band 2 through the pressurization and decompression device 3, blood pressure measurement by the blood pressure measurement unit 4, and measurement after the measurement The control to display the resulting blood pressure value on the blood pressure display unit 5 is performed.

On the other hand, in the case of automatic measurement (the automatic measurement on / off switch unit 6 is on), the control circuit 10 first determines the state of the power on / off unit 11 of the inclination angle detection unit 7.
When the power of the tilt angle detection unit 7 is turned on, that is, when the power of the sensor is turned on, automatic measurement starts and measurement starts.

In this case, when starting the measurement, first, the inclination angle θ of the forearm AM of the subject M to be bent so that the height position of the sphygmomanometer main body 1 becomes the height position of the heart H as described above is detected. Based on the detected inclination angle θ, the determination unit 8 compares the detected inclination angle θ with an inclination angle value serving as a criterion to determine whether or not the measurement is appropriate for blood pressure measurement. Informs the appropriateness in the notification unit 9 (OK
Notification), and automatically starts the blood pressure measurement operation at a predetermined time interval.

In this blood pressure measurement operation, the cuff band 2 is pressurized and depressurized under the control of the control circuit 10 through the compression / decompression device 3, and the blood pressure measurement unit 4 measures the blood pressure.
The inclination angle serving as a criterion for determining whether or not the inclination is appropriate may have a predetermined width. Further, at the time of the determination, the inclination angle determined to be the start of the blood pressure measurement operation may be set as the approximate center value of the width. If the determination is NO (NG), the notification unit 9 indicates NO under the control of the control circuit 10.
UT notification is performed. The subject M who knows that the inclination angle θ is inappropriate by this notification adjusts the inclination angle θ by moving the forearm AM. The tilt angle detection unit 7 detects the tilt angle θ of the forearm AM of the subject M to be adjusted, and the determination unit 8 determines whether the detected tilt angle θ is appropriate. OK by the notification unit 9 under the control of 10
The notification is performed, and the operation of the blood pressure measurement is automatically started immediately. The blood pressure measurement operation may be started after a predetermined time if the inclination angle θ is appropriate, as in the start of the measurement operation based on the first measurement result. The subject M is OK
Until the notification is performed, the inclination angle θ of the forearm AM is adjusted.

During the measurement after the start of the blood pressure measurement operation, the inclination angle detection section 7 detects the inclination angle θ of the forearm AM of the subject M as well as before the start of the measurement at any time. The control circuit 10 controls the notifying unit 9 to notify the subject M based on the result of the determination, and determines whether or not the tilt angle θ is appropriate. After a predetermined time from the notification, the notification unit 9 performs the OUT notification, and urges the subject M to adjust the inclination angle θ of the forearm AM to be appropriate. In this case, if it is determined that the adjustment is appropriate, the notification unit 9 performs OK notification with a predetermined time delay from the determination.

The notifying section 9 for notifying the judgment result at the start of the measurement and during the measurement operation may be any of light, sound, vibration, numerical display and the like.

When the blood pressure measurement is completed, the control circuit 10
The control of the inclination angle detecting section 7 is turned off under the control of, and the measurement result is displayed on the blood pressure display section 5.

Thereafter, the power is turned off by the power on / off section 11 of the tilt angle detecting section 7.

(Embodiment 2) FIG. 4 is a circuit block diagram of this embodiment constituting a wrist sphygmomanometer, and a cuff band 2 attached to a wrist of a subject M, similarly to Embodiment 1.
In the sphygmomanometer main body 1 attached to the cuff band 2, a pressurizing and depressurizing device 3 for performing pressurizing and depressurizing of the cuff band 2, a blood pressure measuring unit 4, a blood pressure displaying unit 5 for displaying a measured blood pressure value, and a A tilt angle detecting unit 7 for detecting a tilt angle θ of the forearm AM by a configuration described later, a power on / off unit 11 of the tilt angle detecting unit 7,
A determining unit 8 for determining whether or not the detected tilt angle θ of the tilt angle detecting unit 7 is appropriate; a notifying unit 9 for notifying the determination result; and an automatic unit for automatically selecting whether or not to start the measurement. In addition to the measurement on / off switch unit 6, an angle memory switch 12 for setting the storage of the tilt angle, an angle storage unit 13 for storing the tilt angle based on the storage setting of the angle memory switch 12, and a tilt angle detection unit It comprises a counting section 14 for counting detection pulses from the control section 7 and a control circuit 10 for controlling these sections.

Here, as shown in FIG. 5, the inclination angle detecting unit 7 is a support 74 which is a mounting member fixed to the sphygmomanometer main body 1.
And a disk-shaped shielding plate 70 rotatably supported in a vertical direction on the support 74. A weight 71a is provided at a position displaced from the center of rotation of the shielding plate 70.
A pendulum 71 for stabilizing the shielding plate 70 so that 1a is located below the center of rotation and on a vertical line passing through the center of rotation.
And a plurality of slits 72 formed at regular intervals in the shielding plate 70 at regular intervals (for example, 10 degrees) over substantially the entire circumference excluding the weight portion 71. And the slit 72 passes along the path of the light beam from the light projector 73a with the rotation of the rotating plate 70, so that the light beam of the light receiver 73b is intermittently received. Optical sensor 73 that generates a detection signal
The counting unit 14 counts the number of detection signals of the optical sensor 73. The slits 72 may be provided only in a certain angle range as shown in FIG. And the count number of the counting unit 14 and the inclination angle θ
Is obtained in advance, and the absolute value of the inclination angle θ of the forearm AM can be detected.

In the case of FIG. 5, the light sensor 73 moves by tilting the forearm, so that the light beam crosses the slits 72 of the shielding plate 70. 70 may move, while the light sensor 73 and the light receivers 73a and 73b may have a structure that is stabilized at a fixed position even by the inclination of the forearm AM by the pendulum.

FIG. 7 is a flowchart showing the operation of the main part of this embodiment. The operation of the main part of this embodiment will be described based on this flowchart. Note that the operation when the automatic measurement on / off switch unit 6 is turned on conforms to FIG. 5 and is omitted here.

First, after confirming that the automatic measurement on / off switch unit 6 is off, the subject M wears the sphygmomanometer main body 41 on his / her wrist, and turns on the measurement power after this wearing. Then, the forearm AM is raised so that the wrist is at the height of the heart H (see FIG. 2B). By raising the forearm AM, the projection of the optical sensor 73, the light receivers 73a and 73b,
The support 74 that rotatably supports the shielding plate 70 is inclined according to the inclination of the sphygmomanometer main body 71.
In the case of 0, the pendulum 71 does not rotate because its weight 71a is positioned on the vertical line.

Accordingly, when viewed from the optical sensor 73 side, the state is the same as the state where the shielding plate 70 is relatively rotated. As a result, the forearm AM in the horizontal state of FIG. 2A is tilted as shown in FIG. Then, a predetermined number of slits 72 cross the optical path of the light beam corresponding to the inclination angle θ,
The number of detection signals corresponding to the number of crossed slits is generated, and the count unit 14 counts the number of the detection signals under the control of the control circuit 10, and the tilt angle θ is detected based on the count value.

Here, when the inclination angle value is not stored in the angle storage unit 13, the angle memory switch 12 is operated after the wrist of the subject M is positioned at the height of the heart H, and the detection is performed. Is stored in the angle storage unit 13 under the control of the control circuit 10. After the storage, the control circuit 10 starts the measurement operation and performs a series of pressurization and depressurization control of the pressurization and depressurization of the cuff band 2 through the pressurization / decompression device 3, blood pressure measurement by the blood pressure measurement unit 4, and measurement after the measurement. The control to display the resulting blood pressure value on the blood pressure display unit 5 is performed.

In the case where the tilt angle is already stored in the angle storage unit 13, in the present measurement, in the process of tilting the forearm AM by the subject M, the counting unit 1 is used.
The determination unit 8 determines whether the inclination angle θ detected by the count value of 4 reaches the inclination angle stored in the angle storage unit 13, and the detected inclination angle θ reaches the stored inclination angle. The measurement operation is automatically started under the control of the control circuit 10 and the measured blood pressure value is displayed on the blood pressure display unit 5 after the measurement is completed.

The tilt angle detecting section 7 has a circular plate structure in which the shielding plate 70 also serves as a pendulum, and the light beam of the optical sensor 73 crosses the slit. As shown in FIG. The central portion is fixed to a disk-shaped pendulum 71 provided with a portion 71a, and the light of a light sensor 731 and 732 composed of a light emitting and receiving device 73a and 73b provided on both sides of the arm 70a and 70b respectively. The beams are converted to optical sensors 731,
A shield plate 70 'adapted to block or pass by rotating relative to 732 may be used. Here, the arm pieces 70a, 7a of this shielding plate 70 '
By measuring the expansion angle and the width between the two values 0b, it is possible to detect so as to satisfy three of the following four conditions.

That is, the inclination angle at which the shielding plate 70 'is relatively rotated so that both of the optical sensors 731 and 731 are off, and the shielding plate 70' is relatively rotated so that the optical sensor 731 is on and 732 is off. Tilt angle, optical sensor 7
The shield plate 70 'is set so that 31 is off and 732 is on.
Are relatively rotated, the two light sensors 731, 73
2 is three of the four inclination angles of the inclination angle at which the shielding plate 70 'is relatively rotated so that both are turned on.

Accordingly, it is possible to determine three situations in which the inclination angle is smaller than the proper angle, proper angle, and larger than the proper angle.

[0068]

According to the first aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a subject, and it is determined whether or not the detected tilt angle by the tilt angle detecting means is suitable for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means, and a means that starts the blood pressure measurement operation without detecting the inclination angle detection means. The blood pressure measurement can be started at any time by the measurer's intention, and the blood pressure can be accurately measured even when the measured person is in a sleeping posture.

According to a second aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a subject, and a determination for judging whether or not the detected tilt angle by the tilt angle detecting means is suitable for blood pressure measurement. Means, and in the sphygmomanometer which starts the blood pressure measurement operation based on the determination result of the determination means, since the selection means capable of selecting whether or not to activate the inclination angle detection means, is provided. The inclination angle detecting means can be operated, and therefore, there is an effect that it is possible to prevent the blood pressure measurement from being started against the intention of the subject when carrying the sphygmomanometer.

According to a third aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a subject, and a determination as to whether or not the tilt angle detected by the tilt angle detecting means is appropriate for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the determination result of the determination means. The determination means has a predetermined width at an inclination angle that is appropriate for blood pressure measurement. However, the inclination angle of the forearm does not need to be strictly adjusted, and the usability is improved.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the predetermined width is widened after the start of the blood pressure measurement operation as compared with when the blood pressure measurement operation is started. Is less likely to deviate from the range suitable for blood pressure measurement, thereby improving the usability and measurement accuracy.

According to a fifth aspect of the present invention, in accordance with the fourth aspect of the present invention, since the determination result that the blood pressure measurement operation is started is substantially the center value of the predetermined width, the inclination angle of the forearm after the start of the measurement is changed to the blood pressure measurement. Departure from an appropriate range can be further reduced, and there is an effect that usability and measurement accuracy are further improved.

According to a sixth aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a subject, and a determination for judging whether or not the detected tilt angle by the tilt angle detecting means is suitable for blood pressure measurement. In the sphygmomanometer which comprises means, and starts a blood pressure measurement operation based on the determination result of the determination means, since the determination result of the determination means immediately starts the blood pressure measurement operation when it becomes inappropriate from blood pressure measurement, The subject can immediately stop the operation for setting the tilt angle of the forearm to a state appropriate for blood pressure measurement, and as a result, the blood pressure measurement can be performed while the tilt angle of the forearm is appropriate for the blood pressure measurement,
There is an effect that accurate blood pressure measurement can be performed.

According to a seventh aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a person to be measured, and a determination as to whether the tilt angle detected by the tilt angle detecting means is appropriate for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means. If the first determination result by the determination means is appropriate for blood pressure measurement, after a predetermined interval, Since the blood pressure measurement operation is started, the blood pressure measurement can be started after the subject has taken a resting posture for the blood pressure measurement, and thus there is an effect that accurate blood pressure measurement can be performed.

The invention according to claim 8 is a tilt angle detecting means for detecting the tilt angle of the forearm of the subject, and determining whether or not the tilt angle detected by the tilt angle detecting means is appropriate for blood pressure measurement. A blood pressure monitor that starts a blood pressure measurement operation based on the result of the determination by the determination means, wherein the inclination angle detection means detects the inclination angle even after the blood pressure measurement operation is started, and the inclination angle detection means The determination means determines whether the detected inclination angle is suitable for blood pressure measurement by the determination means.If the inclination angle of the forearm becomes inappropriate for blood pressure measurement after the start of blood pressure measurement, the blood pressure measurement may be stopped. Therefore, there is no means to show an inaccurate measurement result to the person to be measured, and even if the measurement is continued without stopping the blood pressure measurement, a means for correcting in an inappropriate state in advance is provided. By so keep an effect that it becomes possible to accurately measure.

According to a ninth aspect of the present invention, in accordance with the eighth aspect of the present invention, there is provided a notifying means for notifying the subject of the determination result determined by the determining means, so that the tilt angle of the forearm can be measured by the subject. The blood pressure can be accurately measured because the subject can adjust the tilt angle of the forearm again to a state appropriate for blood pressure measurement.

According to a tenth aspect of the present invention, in the invention of the ninth aspect, different judgment results are notified when different judgment results are continuously obtained for a predetermined period. Even in the case where the blood pressure measurement is on the boundary between proper and inappropriate, the content of the notification does not change frequently, so that the subject does not feel troublesome.

According to an eleventh aspect of the present invention, in the eighth aspect of the present invention, the blood pressure measurement operation is continued even if the detected inclination angle of the inclination angle detecting means becomes an inappropriate inclination angle for blood pressure measurement. In addition, there is an effect that the measurement is not interrupted and the usability is not deteriorated against the intention of the subject.

According to a twelfth aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a person to be measured, and a determination as to whether or not the tilt angle detected by the tilt angle detecting means is appropriate for blood pressure measurement. In the sphygmomanometer which starts the blood pressure measurement operation based on the determination result of the determination means, since the inclination angle detection means does not operate after the end of the blood pressure measurement,
Maintain the state where the measurement result is displayed after the blood pressure measurement is completed,
In contrast to the intention of the subject, the blood pressure measurement is automatically started again, so that it is possible to prevent a problem that the subject cannot sufficiently confirm the measurement result.

According to a thirteenth aspect of the present invention, there is provided a tilt angle detecting means for detecting a tilt angle of a forearm of a subject, and a determination as to whether or not the tilt angle detected by the tilt angle detecting means is suitable for blood pressure measurement. Means for starting a blood pressure measurement operation based on the determination result of the determination means, wherein the inclination angle detection means has a mounting member, a shielding plate provided with a slit of a predetermined shape, It comprises a pendulum rotatably mounted on a member, and an optical sensor for projecting and receiving a light beam with the shielding plate interposed therebetween and projecting and receiving a light beam. Since the inclination angle is detected by enabling or disabling light reception, the inclination angle detection means can be realized with a small and simple structure. Therefore, even when integrated with the sphygmomanometer, the sphygmomanometer becomes large or complicated. Construction Becomes possible without, also as a light sensor, for example because it easily transformed into electrical signals by using a photo-interrupter, there is an effect that also processing such as notification and automatic measurement start to the subject can be simplified.

According to a fourteenth aspect, in the thirteenth aspect, the inclination angle detecting means has a plurality of slits in the shielding plate, and counts the number of times that the light sensor can switch between light emitting and light emitting. By taking the correlation between the count number and the angle of inclination, the absolute value of the angle of inclination of the forearm can be easily understood, so that the subject can be notified of the angle of inclination of the forearm. The subject can intentionally adjust the inclination angle to the same value by repeated measurement. There is an effect that the accuracy of repeated measurement of blood pressure is improved.

According to a fifteenth aspect of the present invention, in the fourteenth aspect of the present invention, there is provided a means for outputting a determination result determined to be appropriate for blood pressure measurement as a previous count number, so that the accuracy of repeated measurement of blood pressure is improved. At the same time, it is possible to automatically adjust the inclination angle without intentionally adjusting the inclination angle to the same value each time the measurement is performed, so that there is an effect that convenience is improved.

According to a sixteenth aspect of the present invention, in the fourteenth aspect, the plurality of slits are provided only in a predetermined angle range, so that the subject can extend his or her elbow (tilt angle is 0 degree). When the forearm is bent, the first count is the predetermined angle of the first slit, and the absolute value of the tilt angle of the forearm can be determined with high accuracy, thereby ensuring the accuracy of repeated measurement of blood pressure. There is an effect of improving.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram of a first embodiment.

FIG. 2 is an explanatory diagram of a method for using the same.

FIG. 3 is a flowchart for explaining the operation of the above.

FIG. 4 is a circuit block diagram according to a second embodiment.

FIG. 5 is a perspective view in which a part of an inclination angle detection unit used in the embodiment is omitted.

FIG. 6 is a perspective view of another example of the shield plate of the tilt angle detection unit used in the embodiment.

FIG. 7 is a flowchart for explaining the above operation.

FIG. 8 is a perspective view of another example of the inclination angle detection unit used in the first embodiment.

[Explanation of symbols]

 2 cuff band 3 pressurization / decompression device 4 blood pressure measurement unit 5 blood pressure display unit 6 automatic measurement on / off switch unit 7 tilt angle detection unit 8 measurement unit 9 notification unit 10 control circuit 11 power supply on / off unit

Claims (16)

[Claims] An inclination angle detecting means for detecting an inclination angle of a forearm of a subject; and a judging means for judging whether or not the inclination angle detected by the inclination angle detecting means is appropriate for blood pressure measurement. A sphygmomanometer that starts a blood pressure measurement operation based on a result of the determination by the determination unit, further comprising: a unit that starts the blood pressure measurement operation without detecting the inclination angle detection unit. 2. An inclining angle detecting means for detecting an inclining angle of a forearm of a subject, and a judging means for judging whether or not the inclining angle detected by the inclining angle detecting means is suitable for blood pressure measurement. A sphygmomanometer that starts a blood pressure measurement operation based on a result of the determination by the determination means, the sphygmomanometer comprising selection means for selecting whether to activate the inclination angle detection means. 3. An inclining angle detecting means for detecting an inclining angle of a forearm of a subject, and a judging means for judging whether or not the inclining angle detected by the inclining angle detecting means is suitable for blood pressure measurement. A sphygmomanometer that starts a blood pressure measurement operation based on a result of the determination by the determination means, wherein the determination means has a predetermined width at an inclination angle determined to be appropriate for blood pressure measurement. 4. The sphygmomanometer according to claim 3, wherein the predetermined width is made wider after the blood pressure measurement operation starts than when the blood pressure measurement operation starts. 5. The sphygmomanometer according to claim 4, wherein the determination result that the blood pressure measurement operation is started is a substantially central value of the predetermined width. 6. An inclination angle detecting means for detecting an inclination angle of a forearm of a subject, and a judging means for judging whether or not the inclination angle detected by the inclination angle detecting means is appropriate for blood pressure measurement. A sphygmomanometer for starting a blood pressure measurement operation based on a result of the determination by the determination means, wherein the blood pressure measurement operation is started immediately when the determination result of the determination means becomes inappropriate from appropriate for blood pressure measurement. . 7. An inclining angle detecting means for detecting an inclining angle of a forearm of a subject, and a judging means for judging whether or not the inclining angle detected by the inclining angle detecting means is suitable for blood pressure measurement, In a sphygmomanometer that starts a blood pressure measurement operation based on the determination result of the determination unit, when the first determination result by the determination unit is appropriate for blood pressure measurement, the blood pressure measurement operation is started after a predetermined interval. Blood pressure monitor characterized by performing. 8. An inclination angle detecting means for detecting an inclination angle of a forearm of a subject, and a judging means for judging whether or not the inclination angle detected by the inclination angle detecting means is appropriate for blood pressure measurement. In a sphygmomanometer that starts a blood pressure measurement operation based on the determination result of the determination unit, the inclination angle is detected by the inclination angle detection unit even after the blood pressure measurement operation is started, and the detected inclination angle by the inclination angle detection unit is A sphygmomanometer characterized in that it is judged by the judging means whether or not it is suitable for blood pressure measurement. 9. The sphygmomanometer according to claim 8, further comprising an informing means for informing the subject of the result of the determination made by said determining means. 10. The sphygmomanometer according to claim 9, wherein when different judgment results are obtained successively for a predetermined period, the different judgment results are notified by the notifying means. 11. The sphygmomanometer according to claim 8, wherein the blood pressure measurement operation is continued even if the detected inclination angle of the inclination angle detecting means becomes an inappropriate inclination angle for blood pressure measurement. 12. An inclining angle detecting means for detecting an inclining angle of a forearm of a person to be measured, and a judging means for judging whether or not the inclining angle detected by the inclining angle detecting means is suitable for blood pressure measurement. A blood pressure monitor for starting a blood pressure measurement operation based on a result of the determination by the determination means, wherein the inclination angle detection means does not operate after the blood pressure measurement is completed. 13. An inclination angle detecting means for detecting an inclination angle of a forearm of a subject, and a judging means for judging whether or not the inclination angle detected by the inclination angle detecting means is appropriate for blood pressure measurement. In the sphygmomanometer that starts a blood pressure measurement operation based on the determination result of the determination unit, the inclination angle detection unit includes a mounting member and a shielding plate provided with a slit of a predetermined shape, and the mounting member is rotatably mounted on the mounting member. A pendulum to be attached, and an optical sensor for projecting and intercepting the shielding plate, and projecting and receiving the light beam by arranging the light receiving means to face each other. A sphygmomanometer characterized by detecting an inclination angle by disabling the blood pressure monitor. 14. The tilt angle detecting means has a plurality of slits in the shielding plate, and is capable of transmitting and receiving light of the optical sensor.
14. The sphygmomanometer according to claim 13, further comprising a unit that counts the number of times of unsuccessful switching. 15. The sphygmomanometer according to claim 14, further comprising means for outputting a determination result that is suitable for blood pressure measurement as a previous count number. 16. The sphygmomanometer according to claim 14, wherein the plurality of slits are provided only in a predetermined angle range.