JP2010158289A - Blood pressure measuring instrument having rest induction - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a blood pressure measurement to be started under a rest state by naturally guiding a user into the rest state. <P>SOLUTION: This blood pressure measuring instrument includes a blood pressure measuring means 30 which measures the blood pressure of a subject H, a respiratory signal detecting means 40 which detects a respiratory signal including information showing the timing of each respiration of the subject H, a transmitting means 50 which transmits the timing of each respiration of the subject H himself to the subject H as it is according to the respiratory signal which has been detected by the respiratory signal detecting means 40, a rest determining means 60 which determines whether the subject is placed under the rest state or not according to the respiratory signal detected by the respiratory signal detecting means 40, and a controlling means 70 which makes the blood pressure measuring means 30 start the measurement of the blood pressure when the fact that the subject H is under the rest state is determined by the rest determining means 60. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a blood pressure measurement device that is used in, for example, medical institutions, various facilities, homes, and the like and guides a person to be measured to measure blood pressure at rest.

  The following is known as a blood pressure measuring device with a resting guide used in places such as medical institutions, various facilities, and homes.

  In other words, when blood pressure is measured, whether or not to exhale by providing a function to display the direction of barcode level change at a constant speed on the display screen of the measuring device intended to guide the measurement subject's breathing It is known that a person can visually check whether or not to breathe, induce respiration of the measurement subject, and enable stable blood pressure measurement.

JP 2006-218222 A

  However, in this blood pressure apparatus, there is no means for confirming whether the measurement subject's breathing matches the designated rhythm or for confirming whether or not the person is actually induced to rest. There was a problem of starting blood pressure measurement without confirming whether or not.

  In addition, since the blood pressure device is a method of unilaterally providing a constant and established visual rhythm, the person to be measured must keep his / her breathing in tune with the specified rhythm and breathe during use. If you don't fit, you may feel painful, and if you consciously try to match the specified rhythm, your breathing will be disturbed.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a blood pressure measuring apparatus with a resting guide that can be guided to a resting state without difficulty and start blood pressure measurement in the resting state.

The present invention provides the following means.
[1] Blood pressure measurement means for measuring the blood pressure of the measurement subject, respiratory signal detection means for detecting a respiratory signal including information indicating the timing of each breath of the measurement subject, and respiration detected by the respiratory signal detection means A transmission means for directly transmitting the timing of each breath of the subject to the measurement person based on the signal, and whether the measurement person is in a resting state based on the respiratory signal detected by the respiratory signal detection means. A blood pressure measuring apparatus with a resting guide, comprising: a rest determining means for determining; and a control means for starting blood pressure measurement by the blood pressure measuring means when the rest determining means determines a rest state.
[2] The blood pressure measuring apparatus with rest induction according to item 1 above, wherein the rest determining means determines a resting state according to a change in time required for each breath.
[3] The blood pressure measuring apparatus with rest induction according to item 1 or 2, wherein the rest determining means determines a resting state according to the depth of each breath.
[4] The blood pressure measuring apparatus with rest induction according to any one of [1] to [3], wherein the control means includes means for prompting the subject to take a deep breath when the rest determination means determines that the subject is not in a resting state.
[5] The blood pressure measuring device with rest induction according to any one of the preceding items 1 to 4, wherein the blood pressure measuring unit and the respiratory signal detecting unit are provided in a cuff attached to the measurement subject.
[6] The blood pressure measuring apparatus with rest induction according to any one of the above items 1 to 5, wherein the respiratory signal detection means detects the respiratory signal by detecting a change in air pressure of a cuff attached to the measurement subject. .

  The present invention has the following effects.

  According to the invention of [1], the respiratory signal including information indicating the timing of each breath of the measured person is detected, and the timing of each breath of the measured person is determined to the measured person based on the detected respiratory signal. As it is reported, it is determined whether or not it is in a resting state, and if it is determined that it is in a resting state, blood pressure measurement is started. By doing so, an appropriate blood pressure can be measured.

  According to the invention of the preceding item [2], since the resting state is determined according to the fluctuation of the time required for each breath, the proper blood pressure can be measured by accurately determining the resting state.

  According to the invention of the preceding item [3], since the resting state is determined according to the depth of each breath, the appropriate blood pressure can be measured by accurately determining the resting state.

  According to the invention of [4], when the subject is determined not to be in a resting state, the subject can be surely led to a resting state by taking a deep breath to encourage the subject to take a deep breath. it can.

  According to the invention of [5] above, since the blood pressure measuring means and the respiratory signal detecting means are provided in the cuff attached to the person to be measured, the troublesomeness of wearing can be reduced and the influence on the measurement can be reduced by downsizing the entire apparatus. There are few, and carrying becomes easy and can measure blood pressure without choosing place.

  According to the invention of [6] above, since the respiratory signal is detected by the change in the air pressure of the cuff attached to the measurement subject, the burden of wearing can be reduced by reducing the weight of the entire device, and the influence on the measurement. There are few, and it becomes easy to carry.

FIG. 1 is a schematic diagram of a blood pressure measuring apparatus with a resting induction according to the first embodiment of the present invention. FIG. 2 is a functional block diagram of the blood pressure measurement device. FIG. 3 is a correlation diagram between respiratory rate (times / min) and blood pressure (mmHg / min). FIG. 4 is a respiratory cycle diagram of the rest determination means. FIG. 5 is a flowchart of the control means. FIG. 6 is a view showing a blood pressure measuring apparatus with a resting induction according to the second embodiment of the present invention.

  Next, a first embodiment of the present invention will be described below with reference to FIGS.

  FIG. 1 is a schematic diagram of a blood pressure measuring apparatus with a resting induction according to the first embodiment of the present invention.

  The blood pressure measuring device with resting induction according to the first embodiment of the present invention is used in places such as medical institutions, various facilities, and homes, and can include measured persons H such as healthy persons, sick persons, infants, and elderly persons. . When this measurement subject H starts blood pressure measurement, it is often not in a resting state, and if blood pressure measurement is started in that state, proper blood pressure cannot be measured. Then, it is for inducing to a resting state and measuring a blood pressure in a resting state.

  As shown in FIG. 1, the blood pressure measuring apparatus 1 with a resting guide includes a cuff body 20 that wraps around the arm or the like of the person H to be measured, and the blood pressure of the person H to be measured calculated from the cuff 20. An air tube (not shown) for sending air to a blood pressure measuring means such as an air bag built in the cuff 20 and a breathing signal detecting means. Wires (not shown) for sending the breathing information of the person H to be measured detected from the blood pressure measuring device 10 are bundled as a wiring tube portion 16, and the cuff 20 and the blood pressure measuring device 10 are bundled with the wiring tube portion 16. And are connected together.

  FIG. 2 is a functional block diagram of the blood pressure measuring device with resting induction according to the first embodiment of the present invention.

  As shown in FIG. 2, the blood pressure measurement device 10 includes a power source 11 for turning on the blood pressure measurement device body 1 with a resting guide, a start switch 12 for starting blood pressure measurement, and for interrupting blood pressure measurement. Stop switch 13, sound output unit 14 for outputting sound such as announcement during blood pressure measurement, transmission means 50 for transmitting the timing of each breath of the person H to be measured to the person H to be measured, and the person to be measured A rest determination means 60 that determines whether or not H is in a resting state and a control means 70 that can start blood pressure measurement in the resting state are provided. A blood pressure measuring means 30 for measuring blood pressure and a respiratory signal detecting means 40 for detecting a respiratory signal including information indicating the timing of each breath are provided.

  The blood pressure measurement means 30 is a means for measuring the blood pressure (mmHg) of the person H to be measured, and is measured by a blood pressure measurement sensor or the like built in the cuff 20, and the measurement location is the upper arm of the person H to be measured, the wrist, Measure blood pressure with your finger or ear. In this embodiment, the cuff 20 is attached to the arm of the person H to be measured, and the blood pressure is measured by the blood pressure measuring means 30 built in the cuff 20.

  The respiration signal detection means 40 is a means for detecting a respiration signal including information indicating the timing of each respiration of the measurement subject H. Respiratory information to be detected includes information indicating the timing of breathing, information indicating the depth of breathing, information indicating the amplitude of breathing, information indicating the rhythm of breathing, etc. , Respiratory rate (times / min), respiratory cycle (seconds), respiratory frequency (Hz), and the like.

  As a means for detecting this respiratory signal, for example, an air pressure detection sensor using an air bag, a piezoelectric element, a strain sensor, an electrocardiograph (electrode), an airflow sensor such as a nose mouth, a method, an apparatus such as an electromyograph, etc. Can be detected. As a small device, an air pressure detection sensor using an air bag, a piezoelectric element, an electromyograph, or the like is preferable. These may be incorporated in the cuff 20 or the like, or may be used by being sandwiched between the cuffs 20. good. In addition to the arm of the person H to be measured, the position where the respiratory signal is detected may be the wrist, finger, mouth, nose, chest, belly, etc. You may do it.

  In this embodiment, the cuff 20 is attached to the arm of the person H to be measured, and the breathing signal is detected by an air pressure detection sensor built in the cuff 20.

  The transmission means 50 is means for transmitting the timing of each breath of the measurement subject H itself to the measurement subject H as it is based on the respiratory signal detected by the respiratory signal detection means 40. Here, “as it is” as used in the present invention means the timing.

  The transmission means 50 transmits the respiratory signal of the person H to be measured using, for example, a vibration method using a vibrator or the like, a low frequency stimulation method using a low frequency device, or an electrical stimulation method using electrodes or the like. Is preferred. The transmission point may be directly pasted on the skin of feet, fingers, ears, wrists, etc., and the transmission means may be fixed with a band or rubber, etc. It is also good to communicate. The timing of transmitting the respiratory signal of each breath of the measured person H to the measured person H is the same as that in the respiratory cycle in which the information indicating the timing of each breathing of the measured person H is displayed in a wave shape in accordance with the respiratory cycle. It is preferable to communicate. Specifically, it is good to convey the timing when the peak or valley (b) of the respiratory cycle is reached. However, the present invention is not limited to the above timing range. It is preferable that the intensity of transmission is such that the vibration is weak enough to be felt only by the person to be measured H, and in some cases, the person to be measured H can adjust the strength according to his / her preference.

  In this embodiment, the measurement subject H uses the vibrator built in the blood pressure measurement device main body 10 with his / her hand, and the timing when the valley shape (b) of the respiratory cycle is transmitted to the measurement subject H as it is. To do. However, the present invention is not limited to the above transmission method.

  The rest determination means 60 is a means for determining whether or not the patient is in a resting state based on the breathing signal detected by the breathing signal detecting means 40. The resting range of the reference value indicating the resting state is determined as to whether or not this resting state is present. Is set in a calculation unit (not shown) for calculation and analysis processing, and it is determined whether or not the timing of each breath detected from the person H to be measured is within this resting range.

  Here, the resting range will be described by the correlation between the value indicating the timing of each breath as the number of breaths (times / min) and the blood pressure (mmHg / min).

  FIG. 3 is a correlation diagram between respiratory rate (times / min) and blood pressure (mmHg / min). FIG. 4 is a respiratory cycle (seconds) diagram based on the respiratory signal.

  As shown in FIG. 3, when the respiration rate (times / min) is high, the blood pressure (mmHg / min) also rises relatively, and when the respiration rate (times / min) is the normal number of times, the blood pressure (times / min) mmHg / min) is also a relatively normal value. That is, when the respiration rate (times / min) of the person H to be measured is a normal number, it can be said that the person is in a resting range. From this, it can be determined whether the respiration rate (times / min) of the person H to be measured is within the resting range.

  The resting range in this embodiment will be described.

  As shown in FIG. 4, whether or not it is in the resting range is determined by determining the timing of each breath detected by the breathing signal detection means 40 in the waveform respiratory cycle and the bottom (b) that is the valley-shaped portion of this waveform and the nearest valley. The elapsed time to the bottom (b) of the shape part is calculated, and the elapsed time is compared with the elapsed time in the resting state to determine whether or not it is in the resting range. As shown in Table 1, specifically, when the respiration timing is shown as a respiratory cycle (seconds), the measurement target value is 20.0 to 1.0 seconds, and the normal value is 5.0 to 2.4 seconds. The proper value is 4.6 to 3.8 seconds, and the recommended value is 4.8 to 3.7 seconds. In this embodiment, the range of 4.6 to 3.8 seconds is the resting range.

  In addition, when it shows with a respiration frequency (Hz), a measurement object value is 0.05-1.0Hz, a normal value is 0.2-0.40Hz, and an appropriate value is 0.217-0.263Hz. The recommended value is 0.208 to 0.270 Hz. In terms of respiratory rate (times / min), the measurement target value is 3 to 60 times, the normal value is 12 to 25 times, the appropriate value is 13 to 16 times, and the recommended value is 13 to 16 times. It is.

  Further, the determination as to whether or not the person is in a resting state may be made as a resting state when a predetermined number of times or a predetermined time continues for a predetermined number of times within the resting range. For example, when the moving average of 3 to 6 times of the breathing cycle within the resting range continues for 10 to 20 times, for example, it is determined that the subject H is in a resting state, or 3 to 6 times of the breathing cycle within the resting range. For example, when the moving average is maintained for 30 to 90 seconds, it is preferable to determine that the person H to be measured is in a resting state. In this embodiment, when the 6-time moving average of the breathing cycle within the resting range is continued 6 times, the resting state is determined. However, the present invention is not limited to the above number.

  In addition, when the information indicating the breathing depth or the information indicating the breathing rhythm is detected and the breathing rhythm is abnormal or the breathing rhythm is abnormally disturbed, etc. Even if it is within, it may be determined as a non-resting state.

  In addition, if the amplitude is detected in the respiratory signal detection means 40 and the amplitude moving average is 90% or less and 100% or more of the previous value, or if the difference is repeated, it is determined that the state is not resting. May be.

  The control unit 70 is a unit for starting blood pressure measurement by the blood pressure measurement unit 30 when the rest determination unit 60 determines that it is in a resting state. For example, calculation and analysis processing is performed in a calculation unit (not shown). .

  FIG. 5 is a flowchart of the control means.

  As shown in FIG. 5, in this embodiment, the person H to be measured wears a cuff 20 on his arm, turns on the power supply 11 of the blood pressure measuring apparatus 1 with resting guidance, presses the start switch 12 and presses the blood pressure measuring apparatus 1 with resting guidance. Is activated. In step S10, an announcement such as “Please take three deep breaths” or “Please wait and rest” is recorded. Next, the process proceeds to step S20. In step S20, the respiration detection of the person H to be measured is performed. Next, the process proceeds to step S30. In step S30, the detected respiratory signal is transmitted. Next, the process proceeds to step S40. In step S40, it is determined whether or not the person H to be measured is in a resting state. If it is determined that the person is in a non-resting state, the process proceeds to step S20 as “NO”, and breathing detection is started again. If it is determined that the person is in a resting state, the process proceeds to step S50 as “YES”. In step S50, the blood pressure of the person H to be measured is automatically measured. Next, the process proceeds to step S60. In step S60, the measured blood pressure is displayed on the display unit 15. The blood pressure measurement is thus completed.

  In step S50, the subject H is informed of a resting state and an announcement, or displayed on the display unit 15, and the subject H himself / herself presses a switch (not shown) for starting blood pressure measurement to start blood pressure measurement. You may make it do.

  Further, when it is determined in step S40 that the person is in a non-resting state, the process returns to step S10, and the resting state may be prompted by an announcement such as “Please take three deep breaths” or “Please take a deep breath”.

  Furthermore, when it is determined that the patient is at rest in step S40 and blood pressure measurement is started in step S50, the blood pressure may be measured at least once and the average value may be used as the blood pressure of the person H to be measured. In this case, after starting the first blood pressure measurement, when the second and subsequent blood pressure measurement is started, the blood pressure may be measured at intervals of 40 to 60 seconds, or it is determined again whether or not the patient is in a resting state. Then, blood pressure measurement for the second and subsequent times may be started.

  The blood pressure measuring device with rest induction 1 of the present embodiment has the following advantages.

  That is, in the present embodiment, the respiratory signal detection unit 40 detects a respiratory signal including information indicating the timing of each breathing of the measurement subject H, and the measurement subject H itself based on the respiratory signal detected by the transmission unit 50 The timing of each breath is directly communicated to the person H to be measured, and it is determined whether the rest is determined by the rest determination means 60. If the rest is determined by the control means 70, blood pressure measurement is started. Therefore, the person to be measured H can be guided to the resting state without difficulty, and the blood pressure measurement can be started in the resting state, so that an appropriate blood pressure can be measured.

  Further, in the blood pressure measurement device 1 with a resting guide according to the present embodiment, the cuff 20 includes a blood pressure measurement unit 30 and a respiratory signal detection unit 40, and the blood pressure measurement device 10 includes a transmission unit 50 and a rest determination. Since the means 60 and the control means 70 are built in, the apparatus 1 can be reduced in size, so that the troublesomeness of the mounting can be reduced, the influence on the measurement can be reduced, the carrying can be facilitated, and blood pressure can be measured regardless of the place.

  Further, in this embodiment, the respiratory signal detection means 40 of the present embodiment can reduce the burden of wearing by reducing the weight of the entire apparatus by detecting the respiratory signal by the air pressure detection means, thereby reducing the burden of measurement. There is little influence and it becomes easy to carry.

  Further, in the present embodiment, since the transmission means 50 is built in the blood pressure measuring device main body 10 and transmitted to the person H to be measured, since the transmission means 50 does not leak to the surroundings, the influence on the surroundings can be eliminated. .

  Moreover, since this embodiment was set as the resting range of the 1st breathing cycle 4.6 to 3.8 seconds, and it was determined as the resting state when the 6-time moving average of the breathing cycle within this resting range was continued 6 times, Appropriate blood pressure can be measured by accurately determining the resting state.

  In the present embodiment, when it is determined that the patient is in the resting state in step S40, the process proceeds to step S50 and the blood pressure measurement is automatically started. Therefore, it is possible to start the blood pressure measurement in the resting state, and to measure an appropriate blood pressure. Can do.

  Next, a second embodiment of the present invention will be described below with reference to FIG.

  FIG. 6 shows a blood pressure measuring apparatus 2 with resting guidance according to the second embodiment of the present invention.

  Regarding the configuration of the respiratory signal detection means 40 incorporated in the cuff 20 and the transmission means 50 incorporated in the blood pressure measurement device 10 in the first embodiment, the respiratory signal detection means 40 includes, for example, a stretchable belt, It may be configured as a rubber band or an air bag, or may be detected by wearing it on the wrist, finger, chest, abdomen, etc. of the person H to be measured. The transmission means 50 may be a vibration means such as a belt or rubber band. Etc. may be detected by incorporating or sandwiching them, or an electrode that generates a low frequency may be attached to a body such as an arm or clothes or the like.

  In this second embodiment, the breathing signal detection means 40 is built in a stretchable belt and is attached to the arm of the person H to be measured to detect the breathing signal, and the transmission means 50 is a low frequency that generates a low frequency. The device is attached to the arm of the person H to be measured and transmitted. The rest is the same as in the first embodiment.

  The blood pressure measuring device 2 with resting induction of the present embodiment has the following advantages.

  That is, in the second embodiment, since the breathing signal detection means 40 is built in the stretchable belt and is mounted on the arm of the person H to be measured to detect the breathing signal, it becomes difficult to detect an erroneous breathing signal. Thus, the respiratory signal can be detected with high accuracy.

  In the second embodiment, since the transmission means 50 of the low-frequency device that generates low frequencies is attached to the arm of the person H to be measured and transmitted, the transmission means 50 does not leak to the surroundings, so The influence of can be eliminated.

  As mentioned above, although demonstrated based on two embodiment of this invention, this invention is not limited to this, You may comprise as follows.

  In the above embodiment, the blood pressure measurement device 10 includes the power source 11, the start switch 12, the stop switch 13, the audio output unit 14, the transmission unit 50, the rest determination unit 60, and the control unit 70. However, for example, an operation for recording / displaying / comparison / communication of respiration information, blood pressure, and the like measured in the past may be incorporated.

  The cuff 20 includes a blood pressure measuring means 30 for measuring the blood pressure of the person H to be measured and a respiratory signal detecting means 40 for detecting a respiratory signal including information indicating the timing of each breath. Also, air pressure detecting means, pulse measuring means such as piezoelectric elements and strain sensors, and percutaneous arterial oxygen saturation (SpO2) detecting means such as a pulse oximeter for measuring percutaneous arterial oxygen saturation (SpO2). Alternatively, a body motion detection means or the like may be incorporated. These may be provided separately from the cuff 20 and may be installed in various places where the person to be measured H contacts, such as a chair or a bed, and directly on other body parts such as feet, fingers, ears, wrists, etc. Or you may mount | wear indirectly.

  The rest stabilization means 60 is a means for determining whether or not the patient is in a resting state based on the breathing signal detected by the breathing signal detection means 40, but the breathing signal and the pulse signal detected by the pulse detection means, Whether or not the person H to be measured is in a resting state may be determined based on a signal including the body motion signal detected by the body motion detection means.

  In addition, the transmission means 50 is configured to transmit using a vibrator incorporated in the blood pressure measurement device main body 10 or a low-frequency device that generates a low frequency. It is also possible to transmit to only the senses such as sight, tactile sensation, or hearing only, and it may be transmitted to a plurality of sensory organs simultaneously or with a time difference.

  What is transmitted to the visual sense includes, for example, light emission, color, image signal, etc., and these may be blinked, changed, or used in combination. The illuminance is preferably adjustable. For example, these may be emitted directly from the blood pressure measuring apparatus 1 with resting guidance, or may be provided separately, or a method using a goggle type display may be used to prevent light from leaking to the surroundings.

  For example, there are methods for transmitting a sound signal such as a buzzer, a bell, a single tone, and a melody, and these sounds may be combined. The volume is preferably adjustable. These may be sounded directly from the blood pressure measuring device 1 with a resting guide, for example, or may be sounded by attaching an earphone or the like to the blood pressure measuring device 1 with a resting guide in order to prevent the sound from leaking to the surroundings.

  When providing the above transmission method separately, you may communicate by wire or wirelessly.

  Utilizing these plural transmission methods is effective for the measurement subject H who does not disturb or prefer the sensory organs including tactile sensation, hearing, and vision.

  The present invention is a blood pressure measurement with resting induction that is used for a person to be measured H such as a healthy person, a sick person, an infant, an elderly person, etc. to start measuring blood pressure in a resting state in places such as medical institutions, various facilities, and homes. Available to the device.

H Measurement subject 10 Blood pressure measurement device 20 Cuff 30 Blood pressure measurement means 40 Respiration signal detection means 50 Transmission means 60 Rest determination means 70 Control means

Claims (6)

Blood pressure measuring means for measuring the blood pressure of the subject;
Breathing signal detection means for detecting a breathing signal including information indicating the timing of each breathing of the measurement subject;
A transmission means for transmitting the timing of each breath of the subject himself / herself to the subject as it is based on the respiratory signal detected by the breathing signal detector;
Rest determining means for determining whether or not the measurement subject is in a resting state based on the breathing signal detected by the breathing signal detecting means;
A blood pressure measurement apparatus with a resting guide, comprising: a control means for starting measurement of blood pressure by the blood pressure measurement means when the rest judgment means determines that the patient is in a resting state.   The blood pressure measuring apparatus with rest induction according to claim 1, wherein the rest determining means determines a resting state according to a change in a required time of each breath.   The blood pressure measuring device with rest induction according to claim 1 or 2, wherein the rest determination means determines a rest state according to a depth of each breath.   The blood pressure measuring apparatus with rest induction according to any one of claims 1 to 3, wherein the control means includes means for prompting the subject to take a deep breath when the rest judging means judges that the person is not in a resting state.   The blood pressure measurement device with rest induction according to any one of claims 1 to 4, wherein the blood pressure measurement means and the respiratory signal detection means are provided in a cuff attached to the measurement subject.   The blood pressure measuring apparatus with rest induction according to any one of claims 1 to 5, wherein the breathing signal detection means detects the breathing signal by detecting a change in air pressure of a cuff attached to the measurement subject.

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