JP6217964B2 - Sphygmomanometer - Google Patents

Description

  The present invention relates to a sphygmomanometer, and more particularly to a wrist sphygmomanometer that measures blood pressure by attaching a cuff to a wrist.

  In recent years, sphygmomanometers are widely used for early detection of lifestyle-related diseases caused by high blood pressure and blood pressure management, and recently, wrist sphygmomanometers that can easily measure blood pressure by wearing a cuff on the wrist Has been developed.

  For example, Patent Document 1 discloses a main unit having a display unit for displaying a blood pressure measurement value, and a biaxial angle measurement that is arranged in the main unit or in the display unit and can measure at least two biaxial angles. There has been proposed an electronic sphygmomanometer including a sensor, and an angle formed between a display surface of the display unit and a mounting surface of the biaxial angle measurement sensor is fixed at a predetermined angle when measuring blood pressure.

  In the case of a wrist type sphygmomanometer, if the display surface of the sphygmomanometer is viewed vertically, the wrist is twisted, so that the height difference between the heart and the wrist differs depending on the twist angle. That is, blood pressure indicates the resistance pressure when blood sent from the heart flows into the blood vessel, but if the wrist is twisted, the difference in height between the heart and the wrist differs depending on the twist angle, This may cause variations in measurement accuracy.

  Therefore, in Patent Document 1, a biaxial angle measurement sensor is mounted on the main body, and guidance and notification is made so that the angle of the forearm is within a predetermined range, and the difference in height between the heart and the wrist is made constant, whereby blood pressure is controlled. I am trying to measure.

Japanese Patent No. 3700635 (Claim 1, FIG. 5 etc.)

  By the way, the blood pressure indicates the resistance pressure when the blood pumped out from the heart flows into the blood vessel as described above, and when the blood pressure measurement position is lower than the heart, the measurement value becomes high and the blood pressure measurement. If the position is higher than the heart, the measurement will be lower. Therefore, in order to obtain an accurate measurement value of the blood pressure, it is necessary to measure the blood pressure at the height position of the heart.

  However, in Patent Document 1, although the height difference between the heart and the wrist is made constant, there is a height difference between the heart and the wrist, and the height position of the heart is not directly detected. Therefore, the measurement result must be displayed assuming the height position of the heart. In addition, although the measurement value of the sphygmomanometer varies depending on the measurement posture, Patent Document 1 does not consider the measurement posture, and thus there is a possibility that the measurement results may vary due to the measurement posture.

  As described above, in Patent Document 1, there is a difference in height between the heart and the wrist, and the height position and measurement posture of the heart are not directly detected by sensors, so that an accurate blood pressure value is measured. It was difficult and the reliability of the measurement results was lacking.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a sphygmomanometer that can obtain a more accurate measurement result and can improve the reliability of blood pressure measurement.

  In order to achieve the above object, a sphygmomanometer according to the present invention includes a main body unit that includes a control unit that performs predetermined arithmetic processing and displays a measurement result, and a cuff connected to the main body unit. A sphygmomanometer for measuring blood pressure by attaching the cuff to a predetermined part of a living body, and detecting at least one of the main body and the cuff on the living body to detect heartbeat Beating detection means, estimating means for estimating the posture and height position of the main body portion to be taken at the time of blood pressure measurement based on the posture and height of the main body portion when the beat is detected, and the main body at the time of blood pressure measurement Adjusting means for adjusting the posture and height position of the part so as to coincide with the estimation result of the estimation means.

  That is, the heartbeat is detected before blood pressure measurement, and the posture and height of the main body to be taken during blood pressure measurement are estimated based on the posture and height position of the main body when the heartbeat is detected. Since the body posture and the heart height position are adjusted to match the estimation result of the estimation means, it is possible to obtain blood pressure measurement results according to the measurement posture and heart height position. Thus, blood pressure can be measured more accurately, and the reliability of blood pressure measurement can be improved.

  In the sphygmomanometer according to the present invention, it is preferable that the adjustment unit includes an instruction unit that instructs the height position of the main body to be the height position estimated by the estimation unit.

  In this case, the blood pressure can be measured after instructing the posture of the main body at the time of blood pressure measurement and the height position of the heart to coincide with the estimation result of the estimation means, so that the standing state or the supine state, etc. Depending on the measurement posture, the blood pressure at the heart height can be measured, whereby an accurate blood pressure measurement result can be obtained, and the reliability of blood pressure measurement can be improved.

  In the sphygmomanometer according to the present invention, it is preferable that the main body unit has a display unit for displaying a measurement result, and the instruction unit displays the character string on the display unit for instruction.

  In the sphygmomanometer according to the present invention, it is preferable that the adjusting unit includes a correcting unit that corrects the blood pressure measurement data based on an estimation result of the estimating unit.

  In this case, after measuring the blood pressure, the blood pressure measurement data can be corrected based on the estimation result of the estimation means, so that a desired accurate blood pressure value can be obtained even if the blood pressure is measured in an arbitrary posture. Therefore, the reliability of blood pressure measurement can be improved.

  In the sphygmomanometer according to the present invention, it is preferable that the heartbeat detecting means includes an acceleration sensor that detects the heartbeat as a vibration waveform.

  In this case, the acceleration sensor can easily detect the heartbeat as a vibration waveform by placing the main body on the chest.

  In the sphygmomanometer according to the present invention, it is preferable that a piezoelectric body is built in the cuff and the piezoelectric body constitutes the heartbeat detecting means.

  In this case, the heartbeat can be easily detected by the piezoelectric body built in the cuff by placing the cuff on the chest.

  Furthermore, it is preferable that the sphygmomanometer of the present invention includes a pressure sensor that detects a pressure applied to the living body via the cuff, and the heartbeat detecting unit is configured by the pressure sensor and the cuff. .

  In this case, by placing the cuff in a pressurized state and placing the cuff on the chest, the vibration state of the cuff surface can be detected by the pressure sensor, and the heartbeat can be easily detected. In addition, since the cuff and pressure sensor are essential components for the blood pressure monitor, there is no need to separately install components such as an acceleration sensor and a piezoelectric body, and the number of components does not increase, and the cost is low and accurate. A blood pressure value can be obtained.

  In the sphygmomanometer according to the present invention, it is preferable that the estimation means includes an inclination sensor that detects at least a posture of the main body.

  Thereby, the posture (standing position, supine state, etc.) of the main body when the heartbeat is detected can be easily estimated.

  In the sphygmomanometer according to the present invention, it is preferable that the tilt sensor detects a height position of the main body.

  In the sphygmomanometer according to the present invention, it is preferable that the estimating means includes a barometric sensor for detecting a height position of the main body.

  In this case, by measuring the absolute pressure before and after blood pressure measurement with the atmospheric pressure sensor, the height position before and after the measurement can be detected, and the height position can be adjusted according to the measurement result of the atmospheric pressure sensor. Become.

  In the sphygmomanometer according to the present invention, the predetermined part is preferably a wrist.

  This makes it possible to realize a wrist type sphygmomanometer capable of measuring blood pressure with high accuracy and accuracy.

  According to the sphygmomanometer, a control unit that performs predetermined arithmetic processing is incorporated, and a main body unit that includes a display unit that displays a measurement result, and a cuff connected to the main body unit, A sphygmomanometer that is mounted on a predetermined part of a living body and measures blood pressure, such as an acceleration sensor or a piezoelectric body that detects at least one of the main body part and the cuff on the living body to detect heartbeat Beating detection means, estimating means such as an inclination sensor and an atmospheric pressure sensor for estimating the posture and height position of the main body when the heartbeat is detected, and the posture and height position of the main body when blood pressure is measured Adjustment means for adjusting to match the estimation result of the means, so that the posture and height position of the main body when the heartbeat is detected before blood pressure measurement is estimated, and the posture of the main body when blood pressure is measured And heart height position estimation means Since adjustment is made to match the estimation result, it is possible to obtain a blood pressure measurement result according to the measurement posture and the height position of the heart, thereby accurately measuring the blood pressure and improving the reliability of blood pressure measurement. Can be planned.

1 is a front view schematically showing an embodiment (first embodiment) of a sphygmomanometer according to the present invention. It is a block block diagram which shows the control system of 1st Embodiment. It is a flowchart which shows the control procedure of 1st Embodiment. It is a front view which shows 2nd Embodiment typically. It is a block block diagram which shows the control system of 2nd Embodiment. It is a flowchart which shows the control procedure of 2nd Embodiment. It is a block block diagram which shows the control system of 3rd Embodiment. It is a flowchart which shows the control procedure of 3rd Embodiment. It is a block block diagram which shows the control system of 4th Embodiment. It is a flowchart which shows the control procedure of 4th Embodiment. It is a flowchart which shows the control procedure of 5th Embodiment. It is a flowchart which shows the control procedure of 6th Embodiment.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]
FIG. 1 is a front view schematically showing one embodiment (first embodiment) of a wrist sphygmomanometer as a sphygmomanometer according to the present invention.

  This sphygmomanometer has a main body 1 and a cuff 2 connected to the main body 1, and the cuff 2 is used by being attached to a wrist.

  The cuff part 2 includes a fluid bag 3 that compresses the wrist that is a measurement site, and a bag-like cover body 4 formed of a stretchable material such as a cloth that covers the fluid bag 3. A fluid such as air is supplied to press the wrist and detect the arterial pressure.

  The main body 1 also has an operation unit 7 having a setting button 5 for setting a measurement condition for blood pressure measurement and a measurement / stop button 6 for instructing measurement or stop of blood pressure, and displays various character strings or blood pressure. And a display unit 8 for displaying the measurement result.

  Further, the main body 1 contains various members such as a pump 9 for supplying a fluid to the fluid bag 3 and a pressure sensor 10 for detecting the pressure in the fluid bag 3, and further on the back side of the main body 1. A battery housing (not shown) is provided.

  The pressure sensor 10 has a built-in diaphragm, one main surface side of the diaphragm is connected to the fluid bag 3 through a pressure detection port, and the other main surface side of the diaphragm is open to the atmosphere. The difference between the pressure in the fluid bag 3 and the atmospheric pressure is detected as the blood pressure.

  FIG. 2 is a block diagram illustrating a control system according to the first embodiment.

  That is, the main body 1 includes the display unit 8, the pump 9, and the pressure sensor 10 described above, an acceleration sensor (beat detecting means) 11 that detects the heartbeat as a vibration waveform, and the main body 1 at the time of detecting the heartbeat. An inclination sensor (estimating means) 12 for estimating the posture and height position of the robot and a predetermined calculation program to be described later are stored, and various data for blood pressure measurement and blood pressure measurement values are stored and used as a work area. A storage unit 13, a battery 14 serving as a drive source for the sphygmomanometer housed in the battery housing unit, and a control unit 15 such as an MCU for controlling these components.

  The detection method of the acceleration sensor 11 is not particularly limited, and an arbitrary type of acceleration sensor such as a piezoelectric acceleration sensor using piezoelectric ceramic, a MEMS acceleration sensor using MEMS (Micro Electro Mechanical System) technology, or the like. Can be used.

  With this sphygmomanometer, the heartbeat is detected by the acceleration sensor 11, the posture of the main body 1 and the height position of the heart are estimated by the inclination sensor 12, and when the posture of the main body 1 is vertical. During blood pressure measurement, blood pressure measurement is performed after adjusting the main body 1 so that the height position of the main body 1 is the same as the heartbeat detection position.

  FIG. 3 is a flowchart showing a control procedure of the sphygmomanometer according to the first embodiment.

  First, when the program is started by pressing the setting button 5 in FIG. 1, in step S <b> 1, a character string “Please sit on a chair and put a sphygmomanometer on your chest” is displayed on the display unit 8.

  In step S2, it is determined whether or not the acceleration sensor 11 has detected a heartbeat. That is, since the heart moves with a constant vibration waveform, the acceleration sensor 11 can detect the vibration waveform as an acceleration waveform. If the answer to step S2 is negative (No), the process waits until the acceleration sensor 11 detects a heartbeat. On the other hand, if the answer to step S2 is affirmative (Yes), the acceleration sensor 11 detects the heartbeat. The position data of the main body 1 is detected by the tilt sensor 12, and the position data is read and stored in the storage unit 13.

  Subsequently, it progresses to step S4 and it is judged whether the inclination sensor 12 has shown that the attitude | position of the main-body part 1 is vertical. That is, the tilt sensor 12 detects the twist angle of the wrist, the tilt angle of the main body 1, the tilt angle from the upright state of the person to be measured, and the like, and determines whether the posture of the main body 1 indicates the vertical state. to decide. As a result, when the answer to step S4 is negative (No), the process returns to step S1, and the measurement posture and the body portion are updated while the position data is updated until the tilt sensor 12 indicates that the posture of the body portion 1 is vertical. Adjust the posture of 1.

  On the other hand, if the answer to step S4 is affirmative (Yes), that is, it is determined that the posture of the main body 1 indicates a vertical state, the process proceeds to step S5, and the characters “Please keep your blood pressure monitor away from your chest.” The column is displayed on the display unit 8, and the process proceeds to step S6.

  In step S6, it is determined whether or not the acceleration sensor 11 has detected a heartbeat. If the answer is affirmative (Yes), it is determined that the sphygmomanometer is not separated from the chest, and the process proceeds to step S5. Return and urge the sphygmomanometer to move away from the chest again.

  On the other hand, if the answer to step S6 is negative (No), that is, if the acceleration sensor 11 no longer detects a heartbeat, the process proceeds to step S7, where the tilt sensor 12 detects the heartbeat from which the main body 1 has detected a heartbeat. It is determined whether or not the height is the same as the position. If the answer to step S7 is affirmative (Yes), the process proceeds to step S9, and the blood pressure measurement is performed by pressing the measurement / stop button 6.

  On the other hand, if the answer to step S7 is negative (No), the process proceeds to step S8, a character string “Please make the height of the blood pressure monitor and the heart the same.” Is displayed on the display unit 8, and the process returns to step S7. . Then, the above processing steps are repeated until the height of the main body 1 becomes equal to the height position of the heart. When the answer to step S7 becomes affirmative (Yes), the process proceeds to step S9, and the measurement / stop button 6 is pressed. Perform blood pressure measurement.

  In the blood pressure measurement in step S9, first, the pump 9 is driven, the fluid is fed into the fluid bag 3 to pressurize it, the artery in the wrist is compressed, the fluid in the fluid bag 3 is exhausted, and the fluid bag at that time 3 is detected by the pressure sensor 10, thereby measuring the systolic blood pressure, the systolic blood pressure, and the pulse.

  The measurement result is displayed on the display unit 8, and the measurement / stop button 6 is pressed to complete a series of measurement operations.

  As described above, in the first embodiment, after the heartbeat is detected by the acceleration sensor 11, the posture of the main body 1 and the heartbeat detection position are estimated by the tilt sensor 12, and the posture of the main body 1 is vertical. In this case, since the blood pressure measurement is performed after adjusting the main body 1 so that the height position of the main body 1 is the same as the heartbeat detection position, blood pressure at the same height as the heart position can be easily and It is possible to measure accurately, thereby obtaining an accurate blood pressure value and improving the reliability of blood pressure measurement.

  The above embodiment is an example of the present invention, and various other embodiments are possible.

  Hereinafter, other embodiments will be described in detail.

[Second Embodiment]
FIG. 4 is a front view schematically showing the second embodiment.

  In the second embodiment, a piezoelectric film (piezoelectric body) 18 is built in a cuff 17 and the piezoelectric film 18 is connected to the control unit 15. The piezoelectric film 18 constitutes a beat detecting means.

  That is, in the second embodiment, as shown in the block configuration diagram of FIG. 5, the heartbeat is detected by the vibration of the piezoelectric film 18, and a signal from the piezoelectric film 18 is input to the control unit 15. Thus, the operation of the sphygmomanometer is controlled.

  FIG. 6 is a flowchart illustrating a control procedure according to the second embodiment.

  That is, in the second embodiment, guidance is given so that the cuff 17 is applied to the chest in step S1 ′, and it is determined in step S2 ′ whether the piezoelectric film 18 has detected heartbeat. If the piezoelectric film 18 detects a heartbeat, the process of steps S3 to S5 similar to that of the first embodiment is performed, and whether the piezoelectric film 18 detects the heartbeat again in step S6 ′. After that, the blood pressure measurement is performed through the same processing as in the first embodiment.

  Thus, in the second embodiment, in addition to the effects described in the first embodiment, the cuff 17 that is an elastic body is applied to the chest, and the piezoelectric film 18 built in the cuff 17 is used to Since the heartbeat is detected, there is no need to put the main body 1 which is a rigid body as in the first embodiment on the chest, and even if the sphygmomanometer is brought into contact with the chest, there is no “craggy feeling” and a comfortable atmosphere With this, heartbeat can be detected.

[Third Embodiment]
FIG. 7 is a block diagram illustrating a control system according to the third embodiment.

  In the third embodiment, the cuff 2 and the pressure sensor 10 that are pressurized without providing the acceleration sensor as in the first embodiment and the piezoelectric film as in the second embodiment as the beat detecting means are provided. Constitutes a heartbeat detecting means.

  FIG. 8 is a flowchart illustrating a control procedure according to the third embodiment.

  First, when the program is started by pressing the setting button 5 in FIG. 1, in step S0, the pump 9 is operated to feed fluid into the fluid bag 3 of the cuff 2 to bring the cuff 2 into a pressurized state. Then, in a subsequent step S1 ″, guidance is given so that the cuff 2 is applied to the chest, and in a subsequent step S2 ″, it is determined whether or not the pressure sensor 10 has detected a heartbeat. That is, when the cuff 2 is applied to the chest, the surface of the cuff 2 is vibrated by the heartbeat. Since the pressure sensor 10 detects the vibration waveform of the cuff 2, it can detect the heartbeat.

  In this way, when the pressure sensor 10 detects the heartbeat in step S2 ″, thereafter, similarly to the first and second embodiments, the processing of step S3 to step S5 is performed, and in the subsequent step S6 ″, the pressure is again applied. It is determined whether or not the sensor 10 has detected a heartbeat, and thereafter blood pressure is measured through the same processing as in the first and second embodiments.

  Thus, in the third embodiment, in addition to the effects described in the first embodiment, the heartbeat is detected by the cuff 2 and the pressure sensor 10 used during blood pressure measurement. As in the second embodiment, the heartbeat can be detected in a comfortable atmosphere, and parts such as an acceleration sensor and a piezoelectric film are not required, so that the number of parts can be reduced and high accuracy is achieved at low cost. The wrist blood pressure monitor can be obtained.

[Fourth Embodiment]
FIG. 9 is a block configuration diagram illustrating a control system according to the fourth embodiment.

  In the fourth embodiment, a pressure sensor 21 is built in the main body 1, and the height position of the main body 1 is estimated by the pressure sensor 21. The atmospheric pressure sensor 21 is in a vacuum state on one surface of the diaphragm and is in contact with the atmosphere on the other surface, and detects a differential pressure from the vacuum.

  FIG. 10 is a flowchart illustrating a control procedure according to the fourth embodiment.

  First, when the program is started by pressing the setting button 5 in FIG. 1, as in the first and second embodiments, a guidance is given so that the body part 1 of the sphygmomanometer is placed on the chest while sitting on a chair in step S11, In step S12, it is determined whether or not the acceleration sensor 11 has detected a heartbeat. If the answer to step S12 becomes affirmative (Yes), the process proceeds to step S13, and the pressure sensor 21 directly reads the pressure data at the heartbeat detection position, that is, the heart position, and stores it in the storage unit 13.

  Next, in step S14, the inclination sensor 12 determines whether or not the posture of the main body 1 is vertical, and when the answer is affirmative (Yes), the process proceeds to step S15 and the main body 1 In step S16, it is determined whether or not the acceleration sensor 11 has detected the heartbeat, and if the answer is negative (No), the main body 1 is separated from the chest. Determination is made and the process proceeds to step S17.

  In step S <b> 17, the atmospheric pressure sensor 21 determines whether or not the main body unit 1 indicates an atmospheric pressure having the same height as the heart position where the heartbeat is detected. That is, the atmospheric pressure data at the present time is compared with the atmospheric pressure data read in step S13, and if they are the same, the atmospheric pressure sensor 21 determines that the main body 1 indicates the same height as the heart position.

  As a result, if the answer to step S17 is affirmative (Yes), the process proceeds to step S19, the measurement / stop button 6 is pressed, and blood pressure is measured by the same method as in the first to third embodiments.

  On the other hand, if the answer to step S17 is negative (No), the process proceeds to step S18, and the character string “Make the blood pressure monitor and the heart the same height” is displayed on the display unit 8, and the process returns to step S17. . Then, the above processing steps are repeated until the height of the main body 1 becomes the same pressure as the heart position. If the answer to step S17 is affirmative (Yes), the process proceeds to step S19, and the measurement / stop button 6 is pressed. The blood pressure measurement is executed by the same method as in the first to third embodiments.

  As described above, in the fourth embodiment, the heart position is directly detected by the atmospheric pressure sensor 21 instead of the tilt sensor, and the blood pressure is adjusted after the height position of the main body 1 is adjusted to be the same height as the heart position. Since the measurement is performed, the blood pressure can be measured more accurately at the heart position, and the reliability of the blood pressure measurement can be further improved with higher accuracy.

[Fifth Embodiment]
FIG. 11 is a flowchart illustrating a control procedure according to the fifth embodiment.

  In the fifth embodiment, the components housed in the main body 1 are the same as those in the fourth embodiment, but the blood pressure is measured while lying on its back.

  First, when the program is started by pressing the setting button 5 in FIG. 1, a character string “Please lie on your back and put your blood pressure monitor on your chest” is displayed on the display unit 8 in step S21. Next, in step S22, it is determined whether or not the acceleration sensor 11 has detected heartbeat. If the answer is negative (No), the process waits until the acceleration sensor 11 detects the heartbeat. On the other hand, if the answer to step S22 is affirmative (Yes), the process proceeds to step S23. Barometric pressure data at the heart position where the heartbeat is detected is read and stored in the storage unit 13.

  Subsequently, it progresses to step S24, and the inclination sensor 12 judges whether the attitude | position of the main-body part 1 has shown the horizontal, and when the answer is negative (No), it returns to step S21, and the above-mentioned Repeat the operation.

  On the other hand, if the answer to step S24 is affirmative (Yes), the process proceeds to step S25, a character string “Please keep your blood pressure monitor away from your chest” is displayed on the display unit 8, and the process proceeds to step S26.

  In step S26, it is determined whether or not the acceleration sensor 11 has detected a heartbeat. If the answer is affirmative (Yes), the process returns to step S25, while the answer of step S26 is negative (No). Advances to step S27.

  In this step S27, it is determined whether or not the atmospheric pressure sensor 21 indicates that it is the same height as the heart of the measurement subject.

  That is, when the subject is in the supine state, the heart height position is lower by the thickness of the chest plate of the subject, so when measuring blood pressure based on the height position of the chest surface, the blood pressure value is actually Therefore, in order to obtain an accurate blood pressure value even when the measurement subject is in a supine state, it is necessary to consider the thickness of such a chest plate.

  Therefore, in the fifth embodiment, the thickness (for example, 10 cm) of the measurement subject's chest is separately measured in advance, and the atmospheric pressure corresponding to the chest height is added to the atmospheric pressure data read in step S23. This is estimated as the heart height position of the person being measured. Then, the barometric pressure data indicating the heart height position is compared with the current barometric pressure data, and it is determined whether or not the height position of the main body 1 indicates the heart height position.

  If the answer to step S27 is affirmative (Yes) and it is determined that the height position of the main body 1 indicates the height position of the heart, the process proceeds to step S29 and the measurement / stop button 6 is pressed. Blood pressure is measured by the same method as in the first embodiment.

  On the other hand, if the answer to step S27 is negative (No), the process proceeds to step S28, and the character string “Make the blood pressure monitor and the heart have the same height” is displayed on the display unit 8, and the process returns to step S27. . And the said process step is repeated until the height of the main-body part 1 comes to show the heart height. If the answer to step S27 is affirmative (Yes), the process proceeds to step S29, the measurement / stop button 6 is pressed, and blood pressure measurement is executed in the same manner as in the first embodiment.

  Thus, even if the posture is supine as in the fifth embodiment, after the posture of the main body 1 is adjusted by the inclination sensor 12, the height of the heart is the same as the heartbeat detection position by the atmospheric pressure sensor 21. The height can be adjusted so that the blood pressure can be measured with higher accuracy and accuracy.

[Sixth Embodiment]
In any of the first to fifth embodiments, the posture and height position of the main body 1 are adjusted based on the detection data of the inclination sensor or the atmospheric pressure sensor at the time of detecting the heartbeat. In the embodiment, the blood pressure is measured in an arbitrary posture, and the blood pressure measurement value is corrected based on the measurement data based on the detection data of the inclination sensor or the pressure sensor when the heartbeat is detected.

  FIG. 12 is a flowchart illustrating a control procedure according to the sixth embodiment.

  That is, when the program is started by pressing the setting button 5 in FIG. 1, a character string “Please put your blood pressure monitor on your chest” is displayed on the display unit 8 in step S31. In a succeeding step S32, it is determined whether or not the acceleration sensor 11 has detected a heartbeat. If the answer is negative (No), the process waits until the acceleration sensor 11 detects the heartbeat. On the other hand, if the answer to step S32 is affirmative (Yes), the process proceeds to step S33. The inclination data (posture data) of the main body 1 is read, and the atmospheric pressure data indicating the height position of the heart is read by the atmospheric pressure sensor 21, and the respective detection data of the inclination sensor 12 and the atmospheric pressure sensor 21 are stored in the storage unit 13.

  Then, the process proceeds to step S34, a character string “Please keep your blood pressure monitor away from your chest” is displayed on the display unit 8, and the process proceeds to step S35.

  Next, in step S35, it is determined whether or not the acceleration sensor 11 has detected a heartbeat. If the answer is affirmative (Yes), the process returns to step S34 while the answer of step S35 is negative (No). In this case, the process proceeds to step S 36, the measurement / stop button 6 is pressed to measure the blood pressure, and the measurement result is stored in the storage unit 13.

  Next, the process proceeds to step S37, the blood pressure measurement value is corrected based on the inclination data and the atmospheric pressure data read in step S33, the blood pressure value corrected in step S38 is displayed on the display unit 8, and the measurement / stop button 6 is pressed. Press to finish the process.

  As in the sixth embodiment, blood pressure is measured in an arbitrary posture, and the blood pressure measurement value is corrected based on the measurement result of the inclination sensor or the atmospheric pressure sensor. Therefore, the reliability of the measurement result can be improved.

  In addition, this invention is not limited to the said 1st-6th embodiment, It cannot be overemphasized that it can deform | transform in the range which does not deviate from the summary of this invention. For example, in the sixth embodiment, the position correction of the heart height is corrected based on the detection data of the atmospheric pressure sensor 21, but the posture of the main body 1 and the height position of the heart are detected by the inclination sensor 12. The barometric pressure sensor may be omitted.

  In the above-described embodiment, the operation unit 7 and the display unit 8 are provided in the main body 1. However, a separate housing may be provided to instruct by wireless communication or transmit / receive measurement results. Moreover, what uses portable terminals, such as a smart phone, as an operation part or a display part is also preferable.

  Detects heartbeat and instructs to adjust the posture and height of the sphygmomanometer based on that information, or corrects the blood pressure, so that even a wrist sphygmomanometer can measure blood pressure accurately. To improve reliability.

DESCRIPTION OF SYMBOLS 1 Main-body part 2 Cuff 8 Display part 10 Pressure sensor 11 Acceleration sensor 12 Inclination sensor 15 Control part 17 Cuff 18 Piezoelectric film (piezoelectric body)
21 Barometric pressure sensor

Claims (11)

A control unit that performs a predetermined calculation process and has a main body unit that includes a display unit that displays measurement results, and a cuff connected to the main body unit, and the cuff is attached to a predetermined part of a living body A blood pressure monitor for measuring blood pressure,
Blood pressure measurement based on heartbeat detection means for detecting a heartbeat by applying at least one of the body portion and the cuff to the living body, and a posture and height position of the body portion when the heartbeat is detected Estimating means for estimating the posture and height position of the main body to be taken at times, and adjusting means for adjusting the posture and height position of the main body at the time of blood pressure measurement to coincide with the estimation results of the estimating means A sphygmomanometer characterized by comprising.   The sphygmomanometer according to claim 1, wherein the adjustment unit includes an instruction unit that instructs the height position of the main body to be the height position estimated by the estimation unit. The main body has a display for displaying measurement results,
The sphygmomanometer according to claim 2, wherein the instruction means instructs to display a character string on the display unit.   The sphygmomanometer according to claim 1, wherein the adjustment unit includes a correction unit that corrects the blood pressure measurement data based on an estimation result of the estimation unit.   The sphygmomanometer according to any one of claims 1 to 4, wherein the heartbeat detecting unit includes an acceleration sensor that detects the heartbeat as a vibration waveform.   The sphygmomanometer according to any one of claims 1 to 4, wherein a piezoelectric body is built in the cuff and the piezoelectric body constitutes the heartbeat detecting means. A pressure sensor for detecting the pressure applied to the living body via the cuff;
The sphygmomanometer according to any one of claims 1 to 4, wherein the heartbeat detecting means includes the pressure sensor and the cuff.   The sphygmomanometer according to any one of claims 1 to 7, wherein the estimating means includes an inclination sensor that detects at least a posture of the main body.   The sphygmomanometer according to claim 8, wherein the inclination sensor detects a height position of the main body.   The sphygmomanometer according to any one of claims 1 to 8, wherein the estimation means includes an atmospheric pressure sensor that detects a height position of the main body.   The sphygmomanometer according to claim 1, wherein the predetermined part is a wrist.

Images