Sphygmomanometer, blood pressure measuring method and storage medium

Abstract

The present invention provides a sphygmomanometer having a nighttime blood pressure measurement mode that automatically starts blood pressure measurement according to a predetermined schedule, and comprising: a single operating switch for inputting an instruction to terminate the nighttime blood pressure measurement mode or to resume the nighttime blood pressure measurement mode; a termination processing unit that, in the nighttime blood pressure measurement mode, performs processing to switch to a measurement termination state in which blood pressure measurement is not started even at a time set by the schedule if the operating switch is operated once; and a recovery processing unit that, in the measurement termination state, performs processing to resume the nighttime blood pressure measurement mode on the condition that the single operating switch is operated again or after a predetermined time has passed since the single operating switch was operated once.

Description

Technical Field

[0001] The present invention relates to a sphygmomanometer, and more particularly, to a sphygmomanometer having a nighttime (sleep time) blood pressure measurement mode. In addition, the present invention relates to a blood pressure measurement method for measuring blood pressure using such a sphygmomanometer. In addition, the present invention also relates to a storage medium storing a program for causing a computer to execute such a blood pressure measurement method. Background Art

[0002] In the past, as a blood pressure meter of this type, for example, a blood pressure meter as described in Patent Document 1 (International Publication No. 2018 / 168797) is known, which specifies the blood pressure measurement time in the nighttime (during sleep) blood pressure measurement mode, sets the measurement start time (or start time) and the measurement end time (or end time), and performs time settings at arbitrary time intervals (for example, 1 hour) to measure and record blood pressure.

[0003] Prior art literature

[0004] Patent Document 1: International Publication No. 2018 / 168797 Summary of the invention

[0005] Problem that the invention aims to solve

[0006] However, while using the sphygmomanometer in the nighttime blood pressure measurement mode during sleep, the subject may temporarily stand up to go to the bathroom, for example. At this time, if it is the above-mentioned conventional sphygmomanometer, when the subject stands up and moves his body, the blood pressure measurement set according to the preset schedule (built-in timer) may start. It is well known that the blood pressure measured when the subject moves his body is higher than when he is at rest. Therefore, it may not be possible to correctly measure blood pressure in the nighttime blood pressure measurement mode using the above-mentioned conventional sphygmomanometer.

[0007] Therefore, the present invention aims to provide a sphygmomanometer and a blood pressure measurement method, which can prevent the start of blood pressure measurement set according to a preset schedule when the subject temporarily stands up in the nighttime blood pressure measurement mode. In addition, the present invention aims to provide a storage medium storing a program for causing a computer to execute such a blood pressure measurement method.

[0008] Means used to solve problems

[0009] In order to solve the above-mentioned problems, the sphygmomanometer disclosed in the present invention is a sphygmomanometer that measures blood pressure by temporarily compressing a measured part of a subject with a blood pressure measurement cuff, and is characterized in that:

[0010] The sphygmomanometer has a nighttime blood pressure measurement mode that automatically starts blood pressure measurement according to a predetermined schedule.

[0011] The sphygmomanometer has:

[0012] A blood pressure measurement unit, in the nighttime blood pressure measurement mode, automatically starts blood pressure measurement according to the schedule, and performs blood pressure measurement when the blood pressure measurement cuff is in a pressurization process or a decompression process;

[0013] a single operating switch for inputting an instruction to terminate the nighttime blood pressure measurement mode or to resume the nighttime blood pressure measurement mode;

[0014] a suspension processing unit that performs processing for switching to a measurement suspension state in which blood pressure measurement is not started even when a time set in the schedule is reached, when the single operation switch is operated once in the nighttime blood pressure measurement mode;

[0015] The recovery processing unit performs a process for recovering to the nighttime blood pressure measurement mode under the condition that the single operation switch is operated again in the measurement suspension state or after a predetermined time has passed since the single operation switch was operated once.

[0016] Here, the "predetermined time" refers to, for example, the time required for the subject to get up from the bed and go to the bathroom and then return to the bed, which is set to 5 minutes. However, the present invention is not limited to this.

[0017] In the nighttime blood pressure measurement mode, the sphygmomanometer of the present invention automatically starts blood pressure measurement according to the schedule. When the blood pressure measurement cuff is in the pressurization process or the decompression process, the blood pressure measurement unit measures the blood pressure. An instruction to terminate the nighttime blood pressure measurement mode or to resume the nighttime blood pressure measurement mode is input to a single operation switch. In the nighttime blood pressure measurement mode, if the single operation switch is operated once, the suspension processing unit performs a process of switching to a measurement suspension state, and the measurement suspension state refers to a state in which blood pressure measurement is not started even at the time set by the schedule. In the measurement suspension state, the recovery processing unit performs a process of resuming the nighttime blood pressure measurement mode on the condition that the single operation switch is operated again, or after a predetermined time has passed since the time when the single operation switch was operated once. Therefore, according to the sphygmomanometer, it is possible to prevent the blood pressure measurement set by the preset schedule from starting when the subject temporarily stands up in the nighttime blood pressure measurement mode.

[0018] A blood pressure meter according to one embodiment is characterized in that, when the single operation switch is operated again as a condition, the recovery processing unit immediately performs a process for recovering to the nighttime blood pressure measurement mode when the single operation switch is operated again.

[0019] According to the blood pressure meter of this embodiment, it is possible to immediately return to the nighttime blood pressure measurement mode in response to the subject's instruction.

[0020] A blood pressure meter according to one embodiment is characterized in that, when the single operation switch is operated again, the recovery processing unit performs processing to recover to the nighttime blood pressure measurement mode after a predetermined time has passed since the single operation switch was operated again.

[0021] Here, the "predetermined time" refers to, for example, the time required for the subject to enter a quiet state after the subject operates the single operation switch again, which is set to 5 minutes. However, the present invention is not limited to this.

[0022] According to the sphygmomanometer of this embodiment, the process of returning to the nighttime blood pressure measurement mode is performed after a predetermined time has passed since the single operation switch is operated again. Therefore, the nighttime blood pressure measurement mode can be continued after the subject enters a resting state.

[0023] A sphygmomanometer according to one embodiment is characterized in that it has an indicator light which indicates whether the sphygmomanometer is in the nighttime blood pressure measurement mode or in the measurement suspension state.

[0024] According to the sphygmomanometer of this embodiment, the subject can confirm whether the sphygmomanometer is in the nighttime blood pressure measurement mode or in the measurement suspended state by observing the indicator light.

[0025] A blood pressure monitor according to one embodiment is characterized in that the measured part is a wrist.

[0026] Because the sphygmomanometer of this embodiment is a type of sphygmomanometer that compresses the wrist as the measured part, it is expected that the degree of interference with the sleep of the user (test subject) will be reduced compared with the sphygmomanometer that compresses the upper arm (Imaietal., "Development and evaluation of a home nocturnal blood pressure monitoring system using a wrist-cuff device", Blood Pressure Monitoring 2018, 23, P318-326). Therefore, this sphygmomanometer is suitable for nighttime (sleep) blood pressure measurement.

[0027] A sphygmomanometer according to one embodiment is characterized in that:

[0028] A main body is provided integrally with the blood pressure measuring cuff,

[0029] The main body is equipped with the blood pressure measurement unit, the single operation switch, the stop processing unit, and the recovery processing unit.

[0030] Here, the “blood pressure measurement unit” includes, for example, a pump that supplies pressurizing fluid to the blood pressure measurement cuff, a valve that discharges fluid from the blood pressure measurement cuff, and elements that drive and control the pump and valve.

[0031] The sphygmomanometer of this embodiment can be constructed in an integrated and compact form, thus making it easier for the user to operate.

[0032] On the other hand, the blood pressure measurement method disclosed herein is a blood pressure measurement method using a sphygmomanometer for measuring blood pressure by temporarily compressing a measured part of a subject with a blood pressure measurement cuff, and is characterized in that:

[0033] The sphygmomanometer has a nighttime blood pressure measurement mode that automatically starts blood pressure measurement according to a predetermined schedule.

[0034] The sphygmomanometer includes a single operation switch for inputting an instruction to terminate the nighttime blood pressure measurement mode or to resume the nighttime blood pressure measurement mode.

[0035] According to the blood pressure measurement method,

[0036] In the nighttime blood pressure measurement mode, blood pressure measurement is automatically started according to the schedule, and blood pressure measurement is performed when the blood pressure measurement cuff is in the pressurization process or the decompression process;

[0037] In the nighttime blood pressure measurement mode, if the single operation switch is operated once, a process is performed to switch to a measurement suspension state in which blood pressure measurement is not started even when the time set in the schedule is reached;

[0038] In the measurement suspension state, the process of returning to the nighttime blood pressure measurement mode is performed on the condition that the single operation switch is operated again or after a predetermined time has passed since the single operation switch was operated once.

[0039] According to the blood pressure measurement method of the present disclosure, it is possible to prevent the blood pressure measurement set in the preset schedule from starting when the subject temporarily stands up in the nighttime blood pressure measurement mode.

[0040] In yet another aspect, a storage medium of the present disclosure stores a program for causing a computer to execute the blood pressure measurement method.

[0041] The blood pressure measurement method can be implemented by causing a computer to execute a program stored in the storage medium of the present disclosure.

[0042] Effects of the Invention

[0043] In summary, according to the sphygmomanometer and blood pressure measurement method disclosed in the present invention, it is possible to prevent the blood pressure measurement set according to the preset schedule from starting when the subject temporarily stands up in the nighttime blood pressure measurement mode. In addition, according to the program stored in the storage medium disclosed in the present invention, it is possible to enable a computer to execute such a blood pressure measurement method. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a diagram showing the appearance of a wrist blood pressure monitor according to one embodiment of the present invention.

[0045] Figure 2 This is a diagram showing the module structure of a sphygmomanometer.

[0046] Figure 3 The figure shows a state in which the above-mentioned blood pressure monitor is attached to the left wrist as the measurement site.

[0047] Figure 4A The figure shows the sitting position as the measurement posture.

[0048] Figure 4B The figure shows the lying position as a measurement posture.

[0049] Figure 5 This is a diagram showing the operation flow when the blood pressure is measured in the normal blood pressure measurement mode using the above-mentioned blood pressure monitor.

[0050] Fig. 6A This is a diagram showing the action flow of blood pressure measurement when the blood pressure is measured using the above-mentioned blood pressure meter in the nighttime blood pressure measurement mode, the subject temporarily stands up and operates the measurement stop switch once, and then operates the measurement stop switch again.

[0051] Figure 6B It means the above Fig. 6A FIG. 1 is a diagram showing the action flow of the measurement stop switch processing in the action flow of blood pressure measurement.

[0052] Figure 6C It is a diagram showing the operation flow of the blood pressure measurement process in the above-mentioned operation flow of the blood pressure measurement.

[0053] Fig.6D It means the above Fig. 6A A graph showing the relationship between the operation timing of the nighttime measurement switch and the measurement suspension switch in the blood pressure measurement and the measurement schedule of the nighttime blood pressure measurement mode over time.

[0054] Fig. 6E It is a graph showing the measurement results of blood pressure measurement using the above-mentioned sphygmomanometer.

[0055] Fig. 7AThis is a diagram showing the action flow of blood pressure measurement when the above-mentioned sphygmomanometer is used to measure blood pressure in the nighttime blood pressure measurement mode. The subject temporarily stands up and operates the measurement stop switch once. After a predetermined time has passed from the time of the second operation, the switch is restored to the nighttime blood pressure measurement mode.

[0056] Figure 7B It means the above Fig. 7A FIG. 1 is a diagram showing the action flow of the measurement stop switch processing in the action flow of blood pressure measurement.

[0057] Figure 7C It means the above Fig. 7A FIG. 1 is a diagram showing the action flow of the timer processing after the measurement is suspended and resumed in the action flow of blood pressure measurement.

[0058] Fig.7D It means the above Fig. 7A A graph showing the relationship between the operation timing of the nighttime measurement switch and the measurement suspension switch in the blood pressure measurement and the measurement schedule of the nighttime blood pressure measurement mode over time.

[0059] Fig. 8A This is a diagram showing the action flow of blood pressure measurement when the above-mentioned sphygmomanometer is used to measure blood pressure in the nighttime blood pressure measurement mode. The subject temporarily stands up and operates the measurement stop switch once. After a predetermined time has passed since the moment of the first operation, the blood pressure measurement is restored to the nighttime blood pressure measurement mode.

[0060] Figure 8B It means the above Fig. 8A FIG. 1 is a diagram showing the action flow of the measurement stop switch processing in the action flow of blood pressure measurement.

[0061] Figure 8C It means the above Fig. 8A FIG. 1 is a diagram showing the action flow of the measurement stop timer processing in the action flow of blood pressure measurement.

[0062] Fig.8D It means the above Fig. 8A A graph showing the relationship between the operation timing of the nighttime measurement switch and the measurement suspension switch in the blood pressure measurement and the measurement schedule of the nighttime blood pressure measurement mode over time. DETAILED DESCRIPTION

[0063] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0064] (Composition of a blood pressure monitor)

[0065] Figure 1 The appearance of a wrist blood pressure monitor 100 according to one embodiment of the present invention is shown. The blood pressure monitor 100 is roughly divided into a left wrist 90 (see below) to be worn as a measurement site. Figure 3) is provided with a blood pressure measurement cuff 20 and a main body 10 integrally mounted on the cuff 20.

[0066] The cuff 20 is a conventional component for a wrist blood pressure monitor, and is in the shape of a thin and long band that is wrapped around the left wrist 90 in the circumferential direction. A fluid bag 22 (see FIG. 2 ) for compressing the left wrist 90 is built into the cuff 20. Figure 2 ). In addition, in order to keep the cuff 20 in a ring shape, a sleeve ring with appropriate flexibility can be provided in the cuff 20.

[0067] like Figure 3 As shown, the main body 10 is integrally mounted at a substantially central portion in the longitudinal direction of the belt-shaped cuff 20. In this example, the mounting portion of the main body 10 is preset to correspond to the palm side (palm side) 90a of the left wrist 90 in the worn state.

[0068] The main body 10 is in the shape of a flat, substantially cubic shape along the outer peripheral surface of the cuff 20. The main body 10 is formed small and thin so as not to disturb the sleep of the user (in this example, the person to be tested, the same below). In addition, the corners of the main body 10 are processed to be rounded (the corners are rounded).

[0069] like Figure 1 As shown, a display 50 constituting a display screen and an operation unit 52 for inputting instructions from a user are provided on a surface (top surface) on the farthest side from the left wrist 90 among the outer surfaces of the main body 10 .

[0070] In this example, the display 50 is composed of an LCD (Liquid Crystal Display) and displays predetermined information according to a control signal from a CPU (Central Processing Unit) 110 described later. In this example, the maximum blood pressure (unit: mmHg), the minimum blood pressure (unit: mmHg), and the pulse (unit: beats / minute) are displayed. In addition, the display 50 may be composed of an organic EL (Electro Luminescence) display or may include an LED (Light Emitting Diode).

[0071] The operation unit 52 inputs an operation signal corresponding to the user's instruction to the CPU 110 described later. In this example, the operation unit 52 includes: a measurement switch 52A for receiving a blood pressure measurement instruction from the user; a nighttime measurement switch 52B for receiving an instruction to switch between a normal blood pressure measurement mode and a nighttime blood pressure measurement mode; a measurement stop switch 52C, which is a single operation switch for inputting an instruction to stop the nighttime blood pressure measurement mode or to resume the nighttime blood pressure measurement mode; and a check switch 52D for causing the display unit 50 to display the stored measurement result. Here, the so-called "normal blood pressure measurement mode" refers to a mode in which, if a blood pressure measurement instruction is input through the measurement switch 52A, blood pressure measurement is performed according to the blood pressure measurement instruction. The so-called "nighttime blood pressure measurement mode" refers to a mode in which blood pressure measurement is automatically started according to a predetermined schedule so that blood pressure values ​​can be measured while the user is sleeping. The predetermined schedule refers to a plan to perform measurement at a predetermined time such as one o'clock, two o'clock, or three o'clock in the middle of the night, or a plan to perform measurement every two hours, for example, after the nighttime measurement switch 52B is pressed.

[0072] Specifically, in this example, the measurement switch 52A, the night measurement switch 52B, and the measurement stop switch 52C are all momentary (self-restoring) switches, which are in the open state only when pressed and return to the closed state when released.

[0073] When the blood pressure meter 100 is in the normal blood pressure measurement mode, once the measurement switch 52A is pressed, it means an instruction to measure the blood pressure, and the cuff 20 temporarily compresses the measured part (left wrist 90), and the blood pressure measurement is performed according to the oscillometric method. If the measurement switch 52A is pressed again during the blood pressure measurement (for example, during the cuff 20 is pressurized), it means an instruction to stop the blood pressure measurement, and the blood pressure measurement is stopped immediately.

[0074] When the nighttime measurement switch 52B is pressed while the sphygmomanometer 100 is in the normal blood pressure measurement mode, it indicates an instruction to switch to the nighttime blood pressure measurement mode, and the sphygmomanometer 100 switches from the normal blood pressure measurement mode to the nighttime blood pressure measurement mode. In the nighttime blood pressure measurement mode, as described above, the oscillometric blood pressure measurement automatically starts according to a predetermined schedule. When the nighttime measurement switch 52B is pressed again while the sphygmomanometer 100 is in the nighttime blood pressure measurement mode, it indicates an instruction to stop the nighttime blood pressure measurement mode, and the sphygmomanometer 100 switches from the nighttime blood pressure measurement mode to the normal blood pressure measurement mode.

[0075] In this example, the indicator light 54 is provided integrally with the nighttime measurement switch 52B. The indicator light 54 is off during the period when the sphygmomanometer 100 is in the normal blood pressure measurement mode. On the other hand, the indicator light 54 is on during the period when the sphygmomanometer 100 is in the nighttime blood pressure measurement mode, and is temporarily off only when the sphygmomanometer 100 is in the measurement suspension state described later. Thus, the subject can confirm whether the sphygmomanometer 100 is in the nighttime blood pressure measurement mode or in the measurement suspension state by observing the indicator light 54.

[0076] Even when the sphygmomanometer 100 is in the nighttime blood pressure measurement mode, in addition to the above-mentioned predetermined schedule, there is a case where a blood pressure measurement instruction is inserted by the user pressing the measurement switch 52A. In this case, according to the inserted blood pressure measurement instruction, the cuff 20 temporarily compresses the measured part (left wrist 90), and the blood pressure measurement is performed according to the oscillometric method.

[0077] Figure 2 The block configuration of the sphygmomanometer 100 is shown.

[0078] As described above, the cuff 20 includes the fluid bag 22 for compressing the left wrist 90 as the measurement site. The fluid bag 22 and the main body 10 are connected to each other via the air pipe 39 so that fluid can flow.

[0079] In addition to the display 50 and the operation unit 52 described above, the main body 10 is equipped with a CPU 110 as a control unit, a memory 51 as a storage unit, a power supply unit 53, a pressure sensor 31, a pump 32, and a valve 33. The main body 10 is also equipped with an A / D conversion circuit 310 that converts the output of the pressure sensor 31 from an analog signal to a digital signal, a pump drive circuit 320 that drives the pump 32, and a valve drive circuit 330 that drives the valve 33. The pressure sensor 31, the pump 32, and the valve 33 are all connected to the fluid bag 22 via the air pipe 39 so that fluid can flow.

[0080] The memory 51 stores a program for controlling the sphygmomanometer 100, data for controlling the sphygmomanometer 100, setting data for setting various functions of the sphygmomanometer 100, and measurement result data of blood pressure values, etc. In addition, the memory 51 is used as a working memory when the program is executed, etc. In particular, in this example, the memory 51 stores an algorithm for blood pressure calculation based on the oscillometric method.

[0081] Figure 2The CPU 110 shown controls all the actions of the sphygmomanometer 100. Specifically, the CPU 110 functions as a blood pressure measurement unit, and controls the pump 32 and the valve 33 in response to the operation signal from the operation unit 52 according to the program for controlling the sphygmomanometer 100 stored in the memory 51. In addition, the CPU 110 functions as a blood pressure measurement unit, and automatically starts blood pressure measurement according to the schedule in the nighttime blood pressure measurement mode, and uses the algorithm for blood pressure calculation of the oscillometric method to measure blood pressure when the blood pressure measurement cuff is in the pressurization process or the decompression process. In addition, the CPU 110 functions as a suspension processing unit, and if the measurement suspension switch 52C is turned on once, it switches to a measurement suspension state in which blood pressure measurement is not performed even when the time set by the schedule is reached. In addition, the CPU 110 functions as a recovery processing unit, and in the measurement suspension state, the process of returning to the nighttime blood pressure measurement mode is performed under the condition that the measurement suspension switch 52C is turned on again, or after a predetermined time has passed since the measurement suspension switch 52C was turned on once. These processes will be described in detail later.

[0082] The power supply unit 53 is composed of a secondary battery in this example, and supplies power to the CPU 110 , the pressure sensor 31 , the pump 32 , the valve 33 , the display 50 , the memory 51 , the A / D conversion circuit 310 , the pump drive circuit 320 , and the valve drive circuit 330 .

[0083] In order to increase the pressure (cuff pressure) in the fluid bag 22 built in the cuff 20, the pump 32 supplies air as a fluid to the fluid bag 22 through the air pipe 39. The on-off valve 33 is opened or closed to discharge air from the fluid bag 22 or seal air into the fluid bag 22 through the air pipe 39 to control the cuff pressure. The pump drive circuit 320 drives the pump 32 according to the control signal given by the CPU 110. The valve drive circuit 330 opens or closes the valve 33 according to the control signal given by the CPU 110.

[0084] The pressure sensor 31 and the A / D conversion circuit 310 function as a pressure detection unit for detecting the pressure of the cuff. In this example, the pressure sensor 31 is a piezoresistive pressure sensor, and outputs the pressure (cuff pressure) in the fluid bag 22 built into the cuff 20 as a resistor based on the piezoresistive effect through the air piping 39. The A / D conversion circuit 310 converts the output (resistance) of the pressure sensor 31 from an analog signal to a digital signal and outputs it to the CPU 110. In this example, the A / D conversion circuit 310 functions as an oscillation circuit that oscillates at a frequency corresponding to the resistance from the pressure sensor 31, and the CPU 110 obtains a signal representing the cuff pressure based on the oscillation frequency.

[0085] (Blood pressure calculation method)

[0086] Figure 5 The flow of actions when the user measures blood pressure in the normal blood pressure measurement mode using the sphygmomanometer 100 is shown. In addition, in this example, if the measurement switch 52A is pressed continuously for, for example, more than 3 seconds when the power is off, the power is turned on and the normal blood pressure measurement mode is entered by default.

[0087] like Figure 4A As shown, the user 80 wearing the blood pressure monitor 100 on the left wrist 90 is in a sitting position.

[0088] Here, if Figure 4A As shown in FIG. 1 , the so-called “sitting position” refers to a position in which the user 80 wearing the blood pressure monitor 100 on the left wrist 90 sits on a chair 97 or the like, with the left elbow touching the table 98 and the left wrist 90 tilted forward relative to the trunk (hand on top, elbow on bottom) and raised, thereby keeping the left wrist 90 (and the blood pressure monitor 100) at the level of the heart 81. On the other hand, if Figure 4B As shown, the "lying position" refers to a posture in which the user 80 wearing the blood pressure monitor 100 on the left wrist 90 lies on the horizontal ground 99 with the left elbow stretched along the trunk.

[0089] like Figure 5 As shown in step S1 of FIG. 1 , if the user presses the measurement switch 52A provided on the main body 10 to input a blood pressure measurement instruction, the CPU 110 initializes the pressure sensor 31 (step S2). Specifically, the CPU 110 initializes the processing memory area, and adjusts the pressure sensor 31 to 0 mmHg (assuming that the atmospheric pressure is 0 mmHg) while the pump 32 is turned off (stopped) and the valve 33 is opened.

[0090] Then, the CPU 110 closes the valve 33 through the valve drive circuit 330 (step S3), and then turns on (starts) the pump 32 through the pump drive circuit 320 to start pressurizing the cuff 20 (fluid bag 22) (step S4). At this time, the CPU 110 supplies air from the pump 32 to the fluid bag 22 through the air pipe 39, and controls the pressure in the fluid bag 22, that is, the pressurization speed of the cuff pressure PC, based on the output of the pressure sensor 31.

[0091] Then, in Figure 5 In step S5, CPU 110 functions as a pressure measuring unit to determine whether the prescribed pressure has been reached. If the prescribed pressure has been reached ("Yes" in step S5), the cuff 20 is determined to be in a wound state and displayed (step S6). The determination of the wound state can be performed by a known method disclosed in the specification of Patent No. 5408142, for example. On the other hand, if the prescribed pressure has not been reached ("No" in step S5), the cuff 20 continues to be pressurized.

[0092] Then, in Figure 5 In step S7, based on the pulse wave signal obtained at this moment (the variable component of the pulse wave contained in the output of the pressure sensor 31), the blood pressure values ​​(maximum blood pressure (systolic pressure) and minimum blood pressure (diastolic pressure)) are attempted to be calculated using the algorithm for blood pressure calculation stored in the memory 51.

[0093] At this time, if the blood pressure value cannot be calculated due to insufficient data ("No" in step S8), the processing of steps S4 to S8 is repeated as long as the cuff pressure PC does not reach the upper pressure limit (for example, pre-set to 300 mmHg for safety reasons).

[0094] If the blood pressure value can be calculated (YES in step S8 ), the CPU 110 controls to turn off the pump 32 (step S9 ), open the valve 33 (step S10 ), and exhaust the air in the cuff 20 (fluid bag 22 ).

[0095] Thereafter, the CPU 110 controls the display 50 to display the calculated blood pressure value (step S11 ), and stores the blood pressure value in the memory 51 .

[0096] (First Embodiment)

[0097] Fig. 6A The figure shows the blood pressure measurement process when the user uses the blood pressure meter 100 to measure blood pressure in the nighttime blood pressure measurement mode, for example, the user gets up temporarily to go to the bathroom, turns on the measurement stop switch 52C once, and then turns on the measurement stop switch 52C again. Figure 4B As shown, a user 80 wearing a blood pressure monitor 100 on his left wrist 90 is in a lying position.

[0098] like Fig. 6A As shown in step S21, if the user presses the nighttime measurement switch 52B provided on the main body 10, the sphygmomanometer 100 switches from the normal blood pressure measurement mode to the nighttime blood pressure measurement mode. Figure 1 ) lights up. Thus, the user can confirm that the blood pressure meter 100 is in the nighttime blood pressure measurement mode by observing the indicator light 54. Fig.6D As shown in FIG. 1 , the following schedule is prepared: at 11:30 p.m., the night measurement switch 52B is pressed to switch to the night blood pressure measurement mode, a timed measurement is performed at, for example, 2 a.m., and a measurement is performed at 3:30 a.m., 4 hours after the night measurement switch 52B is pressed (in addition, at Fig.6D , described later Fig.7D and Fig.8D In the 24-hour format, the time is displayed as 23:30. ).

[0099] like Fig. 6A As shown in step S22, CPU 110 determines whether the user has pressed the measurement stop switch 52C provided on the main body 10. If the user presses the measurement stop switch 52C provided on the main body 10 ("Yes" in step S22), CPU 110 functions as a stop processing unit and performs measurement stop switch processing (step S23). At this time, the indicator light 54 of the sphygmomanometer 100 goes out. Thus, the user can confirm that the sphygmomanometer 100 is in the measurement stop state by observing the indicator light 54. In this example, Fig.6D As shown, it is assumed that the user pressed the measurement stop switch 52C at 1:57 am.

[0100] like Figure 6B As shown in step S31 of , in the measurement stop switch processing, CPU 110 determines whether the measurement stop state has been formed. If the sphygmomanometer 100 has not formed the measurement stop state ("No" in step S31), CPU 110 functions as a stop processing unit and sets the measurement stop state (step S32). In this example, CPU 110 sets the stop flag in memory 51. After that, the measurement stop switch processing ends and returns to Fig. 6A Step S24.

[0101] like Fig. 6A As shown in step S24, the CPU determines whether it is the measurement time corresponding to the schedule of the nighttime blood pressure measurement mode. If it is not the measurement time corresponding to the schedule ("No" in step S24), the process returns to step S22 to determine whether the user has pressed the measurement stop switch 52C. If the user has not pressed the measurement stop switch 52C ("No" in step S22), the blood pressure meter 100 waits for the measurement time corresponding to the schedule to arrive.

[0102] like Fig. 6A As shown in step S24, CPU 110 determines whether it is the measurement time corresponding to the schedule of the nighttime blood pressure measurement mode. If it is the measurement time corresponding to the schedule ("Yes" in step S24), CPU 110 then determines whether the measurement suspension state has been set. If the measurement suspension state has been set ("Yes" in step S25), the sphygmomanometer 100 cancels the blood pressure measurement process (step S26). In this example, Fig.6D As shown, the 2:00 a.m. measurement scheduled was cancelled.

[0103] like Fig. 6A As shown in step S27, CPU 110 determines whether the measurement set in the schedule of the nighttime blood pressure measurement mode has been completed. If the prescribed measurement has not been completed ("not completed" in step S27), the process returns to step S22.

[0104] like Fig. 6AAs shown in step S22, during standby, the CPU 110 determines whether the user has pressed the measurement stop switch 52C provided on the main body 10. For example, if the user presses the measurement stop switch 52C again after going to the bathroom ("Yes" in step S22), the blood pressure meter 100 switches to the measurement stop switch processing (step S23). Fig.6D As shown, it is assumed that the user pressed the measurement stop switch 52C at 2:03 am.

[0105] like Figure 6B As shown in step S31, in the measurement stop switch processing, CPU110 determines whether the measurement stop state has been formed. If the sphygmomanometer 100 has formed the measurement stop state ("Yes" in step S31), CPU110 functions as a recovery processing unit, resets the measurement stop state, and recovers from the measurement stop state (step S33). Then, the measurement stop switch processing ends and returns to the nighttime blood pressure measurement mode. In this example, the sphygmomanometer 100 displays the reopening of the measurement stop switch 52C by lighting the indicator light 54. As a result, the user can easily confirm the recovery of the nighttime blood pressure measurement mode.

[0106] like Fig. 6A As shown in step S24, CPU 110 determines whether it is the measurement time corresponding to the schedule of the nighttime blood pressure measurement mode. If it is the measurement time corresponding to the schedule ("Yes" in step S24), CPU 110 then determines whether the measurement suspension state has been set. If the measurement suspension state has been reset ("No" in step S25), the sphygmomanometer 100 starts the blood pressure measurement process (step S26). In this example, Fig.6D As shown, the measurement is performed at 3:30 a.m. as set in the schedule.

[0107] exist Fig. 6A In the blood pressure measurement process shown in step S26, CPU 110 functions as a blood pressure measurement unit to perform blood pressure measurement. Figure 6C As shown, the blood pressure measurement process is the same as above Figure 5 The steps S2 to S11 are the same except for steps S5 and S6. Fig. 6A As shown in step S27, CPU 110 determines whether the measurement set in the schedule of the nighttime blood pressure measurement mode has been completed. If all the prescribed measurements have been completed ("completed" in step S27), the nighttime blood pressure measurement mode of sphygmomanometer 100 is terminated. At this time, indicator light 54 is turned off.

[0108] Therefore, according to the blood pressure meter 100, it is possible to prevent the blood pressure measurement set in the preset schedule from starting when the subject temporarily stands up in the nighttime blood pressure measurement mode.

[0109] In this example, if Fig. 6EAs shown, the sphygmomanometer 100 stores the measurement results in the memory 51. The highest blood pressure (systolic pressure (SYS)) = 102 mmHg, the lowest blood pressure (diastolic pressure (DIA)) = 78 mmHg, and the pulse (PLS) = 56 times / minute at 2 a.m. on September 1, 2019 are stored. In addition, the systolic pressure (SYS) = 98 mmHg, the diastolic pressure (DIA) = 68 mmHg, and the pulse (PLS) = 48 times / minute at 3:30 a.m. on the same day are stored. Then, because the user pressed the measurement stop switch 52C during the measurement in the night blood pressure measurement mode at 1:57 a.m. on September 2, the next day, the measurement at 2 a.m. set by the preset schedule was canceled, and the blood pressure measurement was not performed. At 2:03 a.m., the user pressed the measurement stop switch 52C, so the sphygmomanometer returned to the night blood pressure measurement mode. Subsequently, the maximum blood pressure (systolic pressure (SYS)) = 97 mmHg, the minimum blood pressure (diastolic pressure (DIA)) = 68 mmHg, and the pulse (PLS) = 49 beats / minute at 3:34 a.m., 4 hours after the night measurement switch 52B was pressed, are stored. Then, at 2 a.m. on the next day, September 3, the sphygmomanometer 100 has an operational error due to the body movement of the subject, and the measurement result is not stored. On the same day, September 3, the maximum blood pressure (systolic pressure (SYS)) = 90 mmHg, the minimum blood pressure (diastolic pressure (DIA)) = 61 mmHg, and the pulse (PLS) = 45 beats / minute at 3:14 a.m., 4 hours after the night measurement switch 52B was pressed, are stored.

[0110] (Second Embodiment)

[0111] Fig. 7A The figure shows the blood pressure measurement process when the user uses the blood pressure meter 100 to measure blood pressure in the nighttime blood pressure measurement mode, and the user temporarily stands up and turns on the measurement stop switch 52C, and then returns to the nighttime blood pressure measurement mode after a predetermined time has passed since the measurement stop switch 52C was turned on again. Fig.7D As shown in the figure, the following schedule is made: at 11:30 p.m., the measurement switch 52B is pressed to switch to the nighttime blood pressure measurement mode, for example, a timed measurement is performed at 2 a.m., and a measurement is performed at 3:30 a.m., 4 hours after the moment when the nighttime measurement switch 52B is pressed. In this example, it is set that after the user presses the measurement stop switch 52C once at 3:24 a.m., the user presses the measurement stop switch 52C again at 3:29 a.m. Then, after a predetermined time Ta (5 minutes in this example), the blood pressure meter 100 automatically returns to the nighttime blood pressure measurement mode at 3:34 a.m.

[0112] like Fig. 7AAs shown in step S51, if the user presses the nighttime measurement switch 52B provided on the main body 10, the sphygmomanometer 100 switches from the normal blood pressure measurement mode to the nighttime blood pressure measurement mode. At this time, the indicator light 54 of the sphygmomanometer 100 lights up.

[0113] like Fig. 7A As shown in step S52, CPU 110 determines whether the user has pressed the measurement stop switch 52C provided on the main body 10. If the user has pressed the measurement stop switch 52C provided on the main body 10 ("Yes" in step S52), the sphygmomanometer 100 turns to the measurement stop switch processing (step S53).

[0114] like Figure 7B As shown in step S61, in the measurement stop switch processing, CPU110 determines whether the measurement stop state has been formed. If the sphygmomanometer 100 has not formed the measurement stop state ("No" in step S61), CPU110 functions as a stop processing unit and sets the measurement stop state (step S62). At this time, the indicator light 54 goes out. Then, CPU110 turns off the measurement stop recovery timer (step S63). Then, the measurement stop switch processing ends and returns to Fig. 7A Step S54.

[0115] like Fig. 7A As shown in step S54, CPU 110 determines whether the measurement stop recovery timer of the sphygmomanometer 100 has been turned on. If the measurement stop recovery timer is not turned on ("No" in step S54), the CPU determines whether it is the measurement time corresponding to the schedule of the nighttime blood pressure measurement mode (step S56). If it is not the measurement time corresponding to the schedule ("No" in step S56), it returns to step S52 to determine whether the user has pressed the measurement stop switch 52C. If the user has not pressed the measurement stop switch 52C ("No" in step S52), the sphygmomanometer 100 waits for the measurement time corresponding to the schedule to arrive.

[0116] like Fig. 7A As shown in step S52 of , during standby, the CPU 110 determines whether the user has pressed the measurement stop switch 52C provided on the main body 10. If the user presses the measurement stop switch 52C provided on the main body 10 again ("Yes" in step S52), the sphygmomanometer 100 switches to the measurement stop switch processing (step S53). Fig.7D As shown, it is assumed that at 3:29 a.m. the user presses the measurement stop switch 52C again.

[0117] like Figure 7BAs shown in step S61, in the measurement stop switch processing, CPU110 determines whether the measurement stop state has been formed. If the sphygmomanometer 100 has formed the measurement stop state ("Yes" in step S61), the CPU determines whether the measurement stop recovery timer has been turned on. If the measurement stop recovery timer is not turned on ("No" in step S64), CPU110 functions as a recovery processing unit to initialize the measurement stop recovery timer (step S65). Next, CPU110 functions as a recovery processing unit to turn on the measurement stop recovery timer (step S66). Then, the measurement stop switch processing ends and returns to Fig. 7A Step S54.

[0118] like Fig. 7A As shown in step S54, CPU 110 determines whether the measurement stop recovery timer of sphygmomanometer 100 is turned on. If the measurement stop recovery timer is turned on ("Yes" in step S54), sphygmomanometer 100 performs the measurement stop recovery timer process (step S55).

[0119] like Figure 7C As shown in step S71, in the measurement stop recovery timer processing, the CPU 110 functions as a recovery processing unit to count the measurement stop recovery timer. Next, the CPU 110 functions as a recovery processing unit to determine whether the measurement stop recovery time Ta has passed (step S72). If the measurement stop recovery time Ta has not passed ("No" in step S72), the measurement stop recovery timer processing ends and returns to step S73. Fig. 7A In this example, the predetermined time Ta is assumed to be the time required for the user to return to the quiet state after pressing the measurement stop switch 52C again, and is set to 5 minutes. However, this is not limiting.

[0120] In addition, when the measurement is resumed after a predetermined time Ta, if Figure 7C As shown in step S72, CPU 110 functions as a recovery processing unit to determine whether the measurement suspension recovery time Ta has passed. If the measurement suspension recovery time Ta has passed ("Yes" in step S72), the measurement suspension state is reset and the measurement suspension state is recovered (step S73). After that, the measurement suspension recovery timer processing ends and returns to Fig. 7A Step S56.

[0121] like Fig. 7AAs shown in step S56, CPU 110 determines whether it is the measurement time corresponding to the schedule of the nighttime blood pressure measurement mode. If it is the measurement time corresponding to the schedule ("Yes" in step S56), CPU 110 then determines whether the measurement suspension state has been set. If the measurement suspension state has been set ("Yes" in step S57), the sphygmomanometer 100 cancels the blood pressure measurement process (step S58). In this example, Fig.7D As shown, the 3:30 a.m. measurement was cancelled.

[0122] In addition, in the case where the measurement suspension status is reset, Fig. 7A As shown in step S57, CPU 110 determines whether the measurement suspension state has been set. If the measurement suspension state has been reset ("No" in step S57), the sphygmomanometer 100 starts the blood pressure measurement process (step S58). In the blood pressure measurement process shown in step S58, CPU 110 functions as a blood pressure measurement unit to perform blood pressure measurement. Figure 6C As shown, the blood pressure measurement process is the same as above Figure 5 The steps S2 to S11 are the same except for steps S5 and S6.

[0123] like Fig. 7A As shown in step S59, CPU 110 determines whether the measurement set in the schedule of the nighttime blood pressure measurement mode has been completed. If all the prescribed measurements are completed ("Yes" in step S59), the nighttime blood pressure measurement mode of sphygmomanometer 100 ends.

[0124] Therefore, in the sphygmomanometer 100, the process of returning to the nighttime blood pressure measurement mode is performed after a predetermined time Ta has passed since the measurement stop switch 52C was turned on again. As a result, the nighttime blood pressure measurement mode can be continued after waiting for the user to return to a resting state.

[0125] (Third Embodiment)

[0126] Fig. 8A The figure shows the blood pressure measurement process when the user uses the blood pressure meter 100 to measure blood pressure in the nighttime blood pressure measurement mode, the user temporarily stands up and turns on a single operation switch once, and the blood pressure measurement returns to the nighttime blood pressure measurement mode after a predetermined time has passed since the moment the single operation switch was turned on. Fig.8D As shown, the following schedule is made: at 11:30 p.m., the night measurement switch 52B is pressed to switch to the night blood pressure measurement mode, for example, a scheduled measurement is performed at 2 a.m., and a measurement is performed at 3:30 a.m., 4 hours after the night measurement switch 52B is pressed. In this example, Fig.8DAs shown, it is assumed that the user presses the measurement stop switch 52C once at 1:57 a.m. Then, at 2:02 a.m. after a predetermined time Tb (5 minutes in this example), the nighttime blood pressure measurement mode is automatically restored.

[0127] like Fig. 8A As shown in step S81, if the user presses the nighttime measurement switch 52B provided on the main body 10, the sphygmomanometer 100 switches from the normal blood pressure measurement mode to the nighttime blood pressure measurement mode. At this time, the indicator light 54 of the sphygmomanometer 100 lights up.

[0128] like Fig. 8A As shown in step S82, the CPU 110 determines whether the user has pressed the measurement stop switch 52C provided on the main body 10. If the user has pressed the measurement stop switch 52C provided on the main body 10 ("Yes" in step S82), the sphygmomanometer 100 turns to the measurement stop switch processing (step S83). In this example, it is assumed that the user pressed the measurement stop switch 52C at 1:57 a.m.

[0129] like Figure 8B As shown in step S91, in the measurement stop switch processing, CPU110 determines whether the measurement stop state has been formed. If the sphygmomanometer 100 has not formed the measurement stop state ("No" in step S91), CPU110 functions as a stop processing unit and sets the measurement stop state (step S92). At this time, the indicator light 54 goes out. Then, CPU110 initializes the measurement stop timer (step S93). Then, CPU110 turns on the measurement stop timer (step S94). After that, the measurement stop switch processing ends and returns to Fig. 8A Step S84.

[0130] like Fig. 8A As shown in step S84, CPU 110 determines whether the measurement suspension timer of blood pressure meter 100 is turned on. If the measurement suspension timer is turned on ("YES" in step S84), the process proceeds to the measurement suspension timer process (step S85).

[0131] like Figure 8C As shown in step S101, in the measurement stop timer processing, CPU110 functions as a recovery processing unit and counts the measurement stop timer. Next, CPU110 determines whether the specified time Tb after the measurement stop has passed (step S102). If the specified time Tb after the measurement stop has not passed ("No" in step S102), the measurement stop timer processing is terminated and the process returns to step S103. Fig. 8A In this example, the predetermined time Tb is assumed to be the time required for the user to get up from the bed, go to the bathroom, and return to the bed from the moment the user presses the measurement stop switch 52C, and is set to 5 minutes. However, this is not limited to this.

[0132] like Fig. 8A As shown in step S86, CPU 110 determines whether it is the measurement time corresponding to the schedule of the nighttime blood pressure measurement mode. If it is the measurement time corresponding to the schedule ("Yes" in step S86), then CPU 110 determines whether the measurement suspension state has been set. If the measurement suspension state has been set ("Yes" in step S87), the sphygmomanometer 100 cancels the blood pressure measurement process (step S88). In this example, Fig.8D As shown, the 2 a.m. measurement was cancelled.

[0133] like Fig. 8A As shown in step S89, CPU 110 determines whether the prescribed measurement set in the schedule of the nighttime blood pressure measurement mode has been completed. If the prescribed measurement has not been completed ("not completed" in step S89), the process returns to step S82.

[0134] like Fig. 8A As shown in step S82, during standby, the CPU 110 determines whether the user has pressed the measurement stop switch 52C provided on the main body 10. Even if the user has gone to the bathroom, there is no need to press the measurement stop switch 52C. If the measurement stop switch 52C is not pressed ("No" in step S82), the CPU 110 then determines whether the measurement stop timer of the sphygmomanometer 100 is turned on. If the measurement stop timer is turned on ("Yes" in step S84), the measurement stop timer processing (step S85) is performed instead.

[0135] like Figure 8C As shown in step S101, in the measurement suspension timer processing, CPU110 functions as a recovery processing unit and counts the measurement suspension timer. Next, CPU110 determines whether the specified time Tb after the measurement suspension has passed (step S102). If the specified time Tb after the measurement suspension has been resumed ("yes" in step S102), CPU110 functions as a recovery processing unit and resets the measurement suspension state (step S103). At this time, the indicator light 54 lights up. Next, CPU110 turns off the measurement suspension timer (step S104). After that, the measurement suspension timer processing ends and returns to Fig. 8A Step S86.

[0136] In addition, Fig. 8A In step S82, if the user presses the measurement stop switch 52C after going to the toilet ("Yes" in step S82), then Figure 8BAs shown in step S91, during the measurement stop switch processing, CPU 110 determines whether the measurement stop state has been formed. If the sphygmomanometer 100 has formed the measurement stop state ("Yes" in step S91), CPU 110 functions as a recovery processing unit and resets the measurement stop state (step S95). At this time, the indicator light 54 lights up. Then, CPU 110 turns off the measurement stop timer (step S96). After that, the measurement stop switch processing ends and returns to Fig. 8A Step S84.

[0137] like Fig. 8A As shown in step S86, CPU 110 determines whether it is the measurement time corresponding to the schedule of the nighttime blood pressure measurement mode. If it is the measurement time corresponding to the schedule ("Yes" in step S86), CPU 110 then determines whether the measurement suspension state has been set. If the measurement suspension state has been reset ("No" in step S86), the sphygmomanometer 100 starts the blood pressure measurement process (step S88). In this example, Fig.8D As shown, the measurement set in the schedule is performed at 3:30 am.

[0138] and Figure 6C The action flow shown is the same. Fig. 8A The blood pressure measurement process shown in step S88 is the same as that described above. Figure 5 The steps S2 to S11 are the same except for steps S5 and S6. Fig. 8A As shown in step S89, CPU 110 determines whether the measurement set in the schedule of the nighttime blood pressure measurement mode has ended. If all the prescribed measurements have ended ("Ended" in step S89), the nighttime blood pressure measurement mode of the sphygmomanometer 100 ends. At this time, the indicator light 54 turns off.

[0139] In summary, according to the sphygmomanometer 100, it is possible to prevent the blood pressure measurement set in the preset schedule from starting when the subject temporarily stands up in the nighttime blood pressure measurement mode.

[0140] In addition, in the sphygmomanometer 100, the indicator light 54 is lit during the nighttime blood pressure measurement mode, and is temporarily extinguished or flashes only during the measurement suspension state. Therefore, the user (test subject) can confirm whether the sphygmomanometer 100 is in the nighttime blood pressure measurement mode or in the measurement suspension state by observing the indicator light 54.

[0141] (Variation Example)

[0142] In the above examples, the schedule of the nighttime blood pressure measurement mode is formulated as follows: the nighttime measurement switch 52B is pressed at 11:30 p.m. to switch to the nighttime blood pressure measurement mode, for example, a timed measurement is performed at 2 a.m., and a measurement is performed at 3:30 a.m., 4 hours after the moment the nighttime measurement switch 52B is pressed. However, the schedule is not limited to this schedule, and a schedule may be formulated as follows: from the moment the nighttime measurement switch 52B is pressed until, for example, 7 a.m., all the timed measurements are performed at 1 a.m., 2 a.m., and 3 a.m. Alternatively, a schedule may be formulated as follows: from the moment the nighttime measurement switch 52B is pressed until, for example, 7 a.m., all the relative time settings are performed such as 2 hours later, 3 hours later, and 4 hours later.

[0143] In addition, since the sphygmomanometer 100 is a type of sphygmomanometer that compresses the wrist (the left wrist 90 in the above example, but the right wrist may also be used) as the measured part, it is expected that the degree of interference with the sleep of the user (the person being tested) will be reduced compared to a sphygmomanometer that compresses the upper arm (Imaietal., "Development and evaluation of a home nocturnal blood pressure monitoring system using a wrist-cuff device", Blood Pressure Monitoring 2018, 23, P318-326). Therefore, the sphygmomanometer 100 is suitable for nighttime blood pressure measurement.

[0144] Furthermore, the blood pressure monitor 100 is integrally configured as a wrist blood pressure monitor and is compact, so it is easy for the user to operate.

[0145] In addition, in the above embodiment, the sphygmomanometer 100 has the measurement switch 52A, the night measurement switch 52B, and the measurement stop switch 52C provided on the main body 10 as the operation unit 52, but the present invention is not limited thereto. The operation unit 52 may also be constituted by a communication unit, for example, which receives instructions from a smartphone or the like outside the sphygmomanometer 100 via wireless communication.

[0146] In the above embodiment, the main body 10 and the cuff 20 are integrally provided, but the present invention is not limited thereto. The main body 10 may be formed separately from the cuff 20 and connected to the cuff 20 (fluid bag 22) via a flexible air tube so that fluid can flow.

[0147] The blood pressure measurement method described above can be recorded as software (computer program) in a recording medium capable of storing data in a non-transitory manner, such as a CD (Compact Disc), a DVD (Digital Versatile Disc), or a flash memory. By installing the software recorded in such a recording medium on a substantial computer device such as a personal computer, a PDA (Personal Digital Assistant), or a smart phone, the blood pressure measurement method described above can be executed by such a computer device.

[0148] The above embodiments are illustrative, and various modifications are allowed without departing from the scope of the present invention. The above multiple embodiments can be implemented independently or in combination. In addition, various features in different embodiments can be established independently or in combination.

[0149] Description of Reference Numerals

[0150] 10 Main Body

[0151] 20 Blood pressure measurement cuff

[0152] 50 Display

[0153] 51 Memory

[0154] 52 Operation Department

[0155] 52A Measuring Switch

[0156] 52B Night measurement switch

[0157] 52C Measurement stop switch

[0158] 54 Indicator lights

[0159] 110 CPU

Claims

1. A sphygmomanometer that measures blood pressure by temporarily compressing a measured area of ​​a subject with a blood pressure measurement cuff, characterized in that: The sphygmomanometer has a nighttime blood pressure measurement mode that automatically starts blood pressure measurement according to a predetermined schedule. The sphygmomanometer has: A blood pressure measurement unit, in the nighttime blood pressure measurement mode, automatically starts blood pressure measurement according to the schedule, and performs blood pressure measurement when the blood pressure measurement cuff is in a pressurization process or a decompression process; a single operating switch for inputting an instruction to terminate the nighttime blood pressure measurement mode and to resume the nighttime blood pressure measurement mode; a suspension processing unit that performs processing for switching to a measurement suspension state in which blood pressure measurement is not started even when a time set in the schedule is reached, when the single operation switch is operated once in the nighttime blood pressure measurement mode; The recovery processing unit performs a process for recovering to the nighttime blood pressure measurement mode under the condition that the single operation switch is operated again in the measurement suspension state or after a predetermined time has passed since the single operation switch was operated once.

2. The sphygmomanometer according to claim 1, characterized in that: in, When the condition is that the single operation switch is operated again, the restoration processing unit immediately performs a process for restoring to the nocturnal blood pressure measurement mode when the single operation switch is operated again.

3. The sphygmomanometer according to claim 1, characterized in that: in, When the single operation switch is operated again as a condition, the return processing unit performs processing for returning to the nocturnal blood pressure measurement mode after a predetermined time has passed since the time when the single operation switch was operated again.

4. The sphygmomanometer according to any one of claims 1 to 3, characterized in that: in, An indicator light is provided to indicate whether the sphygmomanometer is in the nighttime blood pressure measurement mode or in the measurement suspension state.

5. The sphygmomanometer according to any one of claims 1 to 3, characterized in that: in, The measured part is the wrist.

6. The sphygmomanometer according to claim 1, characterized in that: in, A main body is provided integrally with the blood pressure measuring cuff, The main body is equipped with the blood pressure measurement unit, the single operation switch, the stop processing unit, and the recovery processing unit.

7. A blood pressure measurement method, wherein a blood pressure measuring cuff is used to temporarily compress a measured part of a subject to perform blood pressure measurement using a blood pressure measuring device, characterized in that: The sphygmomanometer has a nighttime blood pressure measurement mode that automatically starts blood pressure measurement according to a predetermined schedule. The sphygmomanometer includes a single operation switch for inputting an instruction to terminate the nighttime blood pressure measurement mode and to resume the nighttime blood pressure measurement mode. According to the blood pressure measurement method, In the nighttime blood pressure measurement mode, blood pressure measurement is automatically started according to the schedule, and blood pressure measurement is performed when the blood pressure measurement cuff is in the pressurization process or the decompression process; In the nighttime blood pressure measurement mode, if the single operation switch is operated once, a process is performed to switch to a measurement suspension state in which blood pressure measurement is not started even when the time set in the schedule is reached; In the measurement suspension state, the process of returning to the nighttime blood pressure measurement mode is performed on the condition that the single operation switch is operated again or after a predetermined time has passed since the single operation switch was operated once.

8. A computer-readable storage medium having stored thereon a program for causing a computer to execute the blood pressure measurement method according to claim 7.

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