WO2022217640A1

WO2022217640A1 - Blood pressure measurement apparatus and control method

Info

Publication number: WO2022217640A1
Application number: PCT/CN2021/089371
Authority: WO
Inventors: 陈凯斌; 盛奕冰
Original assignee: 研和智能科技(杭州)有限公司
Priority date: 2021-04-13
Filing date: 2021-04-23
Publication date: 2022-10-20
Also published as: CN113143234A; CN113143234B

Abstract

A blood pressure measurement apparatus comprising: a main body (10), a fixing strap (11) arranged on the main body (10), and an air bladder structure (2), the main body (10) and the fixing strap (11) form a measurement loop, which loops completely around a part to be measured; the air bladder structure (2) is arranged between the measurement loop and a body part where the part to be measured is located, and an air pump (3), an open/close valve assembly (4), a sensor assembly (5), and an information processing portion (101) are provided within the main body (10).

Description

A blood pressure measuring device and control method

technical field

The invention relates to the technical field of blood pressure measurement, in particular to a blood pressure measurement device and a control method.

Background technique

Blood pressure is an important physiological parameter reflecting human vital signs. With the development trend of aging in my country, hypertension has become the main risk factor for coronary heart disease, stroke and even death in my country. Hypertension has seriously threatened the health of Chinese residents, so blood pressure changes have become an important concern in clinical medicine and daily health management.

The demand for accurate, fast and convenient blood pressure measurement is getting higher and higher. At present, the vast majority of blood pressure monitors on the market are cuff blood pressure monitors, which are set on the user's arm for measurement, or the cuff is reduced and designed to be a wrist. sphygmomanometer. Measuring from the arm to the wrist is likely to cause measurement errors, and a more accurate blood pressure measurement device and corresponding control method are required.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a blood pressure measurement device and a corresponding control method, which can obtain a blood pressure value with higher accuracy by designing a new blood pressure measurement device, an air bag structure and different measurement control methods.

In order to achieve the above purpose of the invention, the present invention adopts the following technical scheme: a blood pressure measurement device, comprising a main body and a fixing band arranged on the main body, the main body and the fixing band form a measuring ring, which surrounds the measured part, and also includes an airbag structure , which is arranged between the measurement ring and the part of the human body where the measured part is located;

The main body is provided with

- an air pump in communication with the airbag structure for inflating the airbag structure;

- an on-off valve assembly, disposed in the fluid flow channel where the air pump communicates with the airbag structure, for controlling the flow of fluid in the main body and the airbag structure;

- a sensor assembly, which is arranged in the fluid flow channel formed by the interconnection between the air pump and the airbag structure, and is used to detect the pressure change in the flow channel;

- An information processing unit, connected to the sensor, and processing pressure data detected by the sensor unit to determine a blood pressure value.

The first possible way:

Preferably, the airbag structure includes a reinforcement airbag and a detection airbag, the reinforcement airbag is arranged between the measurement ring and the human body part; the detection airbag covers the measured part and is located between the measured part and the body part. Between the measurement rings; the air pump is connected with the reinforcement airbag and the detection airbag respectively; the air pump is connected with the reinforcement airbag to form a first flow channel, and the air pump is connected with the detection airbag to form a second flow channel.

Preferably, the on-off valve assembly includes a first on-off valve and a second on-off valve, the sensor assembly includes a first sensor and a second sensor, and the first on-off valve and the first sensor are located in the first flow channel, so The second on-off valve and the second sensor are located in the second flow channel.

In a first possible implementation manner, a method for controlling a blood pressure measurement device is disclosed, including the above-mentioned blood pressure measurement device, and the control method includes:

Inflate and pressurize the reinforcement airbag through the air pump;

When the sensor component detects that the pulse wave signal in the reinforcement airbag reaches the preset amplitude, it stops inflating the reinforcement airbag;

Inflate and pressurize the detection air bag through the air pump;

When the sensor assembly detects the normal pulse wave signal in the detection airbag, it stops inflating the detection airbag;

After the information processing unit performs information processing on the normal pulse wave signal detected by the sensor assembly, a blood pressure value obtained by pressurization measurement is obtained, and the blood pressure measurement is completed.

Second possible way:

Preferably, the airbag structure further includes a pressurized airbag, the pressurized airbag is located between the detection airbag and the fixing belt, and the pressurized airbag covers the outside of the detection airbag; the air pump is connected to the The pressure bladder forms the third flow channel.

Preferably, the on-off valve assembly includes a first on-off valve, a second on-off valve and a third on-off valve, the sensor assembly includes a first sensor and a second sensor, and the first on-off valve and the first sensor are located in the In the first flow channel, the second switch valve and the second sensor are located in the second flow channel, and the third switch valve is located in the third flow channel.

In a second possible implementation manner, a method for controlling a blood pressure measurement device is disclosed, including the above-mentioned blood pressure measurement device, and the control method includes:

Inflate and pressurize the reinforcement airbag through the air pump;

After the sensor assembly detects the initial pulse wave signal in the reinforcement airbag, the air pump inflates the reinforcement airbag and the detection airbag simultaneously;

When the air pressure of the detection airbag reaches a preset air pressure value, stop inflating the detection airbag, and continue to inflate the reinforcement airbag;

When the sensor assembly detects the initial pulse wave signal in the detection airbag, it stops inflating the reinforcement airbag, and inflates the pressurizing airbag,

When the sensor assembly detects the normal pulse wave signal in the detection airbag, it stops inflating the pressurized airbag;

Third possible way:

Preferably, the on-off valve assembly includes a first on-off valve, a second on-off valve and a third on-off valve, the sensor assembly includes a second sensor, the first on-off valve is located in the first flow channel, the second on-off valve An on-off valve and a second sensor are located in the second flow path, and the third on-off valve is located in the third flow path.

In a third possible implementation manner, a method for controlling a blood pressure measurement device is disclosed, including the above-mentioned blood pressure measurement device, and the control method includes:

The first stage:

Inflate and pressurize the reinforcement airbag by the air pump for a preset time period, and stop inflating the reinforcement airbag;

Quickly open and close the switch valve assembly, and perform pulse inflation to the detection air bag through the reinforcement air bag;

When the sensor assembly detects that the air pressure in the sensing airbag exceeds a preset pressure value, stop pulse inflation to the detection airbag;

venting the gas in the reinforced airbag and retaining the gas in the detection airbag;

second stage:

Inflate and pressurize the reinforcement airbag through an air pump;

When the pressure in the reinforcement airbag reaches a preset pressure value, stop inflating the reinforcement airbag;

Inflate and pressurize the pressurized air bag through an air pump;

After the sensor assembly detects a normal pulse wave signal in the detection airbag, stop inflation into the pressurized airbag;

Among the above three possible implementation manners, the following implementation manners may also be adopted:

Preferably, the on-off valve assembly further includes a fourth on-off valve, and the fourth on-off valve communicates with the internal flow channel of the main body and the outside atmosphere.

Preferably, it also includes a shaping plate, the shaping plate is fixed on the side of the main body in contact with the body part, the shaping plate is a plate-shaped structure arranged in an arc shape, and the airbag structure is located between the shaping plate and the human body part. between.

Description of drawings

FIG. 1 is a schematic structural diagram of a blood pressure measuring device in Embodiment 1 of the present invention.

FIG. 2 is a schematic structural diagram of another angle of the blood pressure measuring device in Embodiment 1 of the present invention.

FIG. 3 is a schematic cross-sectional structure diagram of the blood pressure measuring device in Embodiment 1. FIG.

FIG. 4 is a schematic structural diagram of the interior of the main body in Embodiment 1 of the present invention.

FIG. 5 is a schematic diagram of the connection of each module in Embodiment 1. FIG.

FIG. 6 is a flowchart of the control method in Embodiment 1. FIG.

FIG. 7 is a schematic diagram of the external structure of the blood pressure measuring device in Embodiment 2 and Embodiment 3. FIG.

FIG. 8 is a schematic diagram of the connection of each module in Embodiment 2. FIG.

FIG. 9 is a flowchart of the control method in Embodiment 2. FIG.

FIG. 10 is a schematic diagram of the connection of each module in Embodiment 3. FIG.

FIG. 11 is a flowchart of the control method in Embodiment 3. FIG.

FIG. 12 is a schematic diagram of the connection of each module in Embodiment 4. FIG.

Reference numerals: 10, main body; 101, information processing part; 11, fixing belt; 2, air bag structure; 21, reinforcement air bag; 210, first flow channel; 22, detection air bag; 220, second flow channel; 230, the third flow channel; 3, the air pump; 4, the switch valve assembly; 41, the first switch valve; 42, the second switch valve; 43, the third switch valve; 44, the fourth switch valve; 5, Sensor assembly; 51, first sensor; 52, second sensor; 6, shaping plate.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings.

Example 1:

The blood pressure measuring device as shown in Figures 1 to 4 includes a main body 10 and a fixing belt 11 provided on the main body 10. The main body 10 and the fixing belt 11 form a measuring ring, which surrounds the measured part, and also includes an airbag structure 2, which is arranged in the measuring ring. Between the ring and the part of the human body where the measured part is located; the main body 10 is provided with an air pump 3, which is communicated with the airbag structure 2 and used to inflate the airbag structure 2; the switch valve assembly 4 is arranged in the connection between the air pump 3 and the airbag structure 2. In the fluid flow channel, it is used to control the flow of the fluid in the main body 10 and the airbag structure 2; the sensor assembly 5 is arranged in the fluid flow channel formed by the interconnection between the air pump 3 and the airbag structure 2, and is used to detect the pressure change in the flow channel; the information processing part 101 , connect the sensor, and process the pressure data detected by the sensor assembly 5 to determine the blood pressure value.

The blood pressure measuring device further includes a shaping plate 6, which is fixed on the surface of the main body 10 in contact with the body part, the shaping plate 6 is an arc-shaped plate-like structure, and the airbag structure 2 is located between the shaping plate 6 and the human body part. The arc-shaped setting plate 6 can reduce the measurement error caused by the deformation of the fixing belt 11 during the inflation process of the airbag, and can also assist the blood pressure measurer to wear the blood pressure measuring device more directly and accurately, thereby improving the accuracy of blood pressure measurement.

As shown in FIG. 5 , the airbag structure 2 includes a reinforcement airbag 21 and a detection airbag 22. The reinforcement airbag 21 is arranged between the measurement ring and the body part; the detection airbag 22 covers the measured part and is located between the measured part and the measurement ring The air pump 3 is connected to the reinforcement airbag 21 and the detection airbag 22 respectively; The switch valve assembly 4 includes a first switch valve 41 and a second switch valve 42, the sensor assembly 5 includes a first sensor 51 and a second sensor 52, and the first switch valve 41 and the first sensor 51 are located in the first flow channel 210. The second on-off valve 42 and the second sensor 52 are located in the second flow passage 220 .

FIG. 6 is a flowchart of the control method of the blood pressure measurement device in the present embodiment 1, and the control method includes the following steps:

Correctly wearing the blood pressure measuring device of this embodiment, the correct way of wearing this embodiment is: the reinforcement airbag 21 is on the back of the wrist on the same side of the wrist and the back of the hand, and the detection airbag 22 is on the front of the wrist on the same side of the wrist and the palm of the hand.

When wearing the blood pressure measurement device, the airbag structure 2 is in an initial state that is not triggered. The initial state in this embodiment is: the air pump 3, the first pressure sensor and the second pressure sensor are all in a stopped operation state, and the first switch valve 41 and The second on-off valves 42 are all in a normally open state.

After wearing, the user triggers the blood pressure measurement mechanism through buttons or touch devices, and clicks to start inflation/detect blood pressure.

At this time, the switch valve assembly 4 and the sensor assembly 5 inside the main body 10 are both in working state, the air pump 3 starts to work, the first switch valve 41 is set to the open state, the second switch valve 42 is set to the closed state, and the air pump 3. The reinforcement airbag 21 is inflated through the first switch valve 41 in the open state.

During the inflation and expansion of the reinforcement airbag 21, the first sensor 51 measures the pulse wave signal in the reinforcement airbag 21. When the first sensor 51 detects that the pulse wave signal in the reinforcement airbag 21 reaches a preset amplitude, the first sensor 51 measures the pulse wave signal in the reinforcement airbag 21. The first switch valve 41 is set to the closed state, and the second switch valve 42 is set to the open state; the gas in the reinforcement airbag 21 is retained, and the air pump 3 continues to work, and the second switch valve 42 is opened to the detection airbag 22. Inflate and pressurize.

During the process of inflating and expanding the detection airbag 22, the second sensor 52 measures the pulse wave signal in the detection airbag 22. When the second sensor 52 detects that the pulse wave signal in the detection airbag 22 leads to a normal pulse wave, the second sensor 52 measures the pulse wave signal in the detection airbag 22. The second on-off valve 42 is set to the closed state, at this time the first on-off valve 41 and the second on-off valve 42 are both in the off state, the air pump 3 stops working, the second sensor 52 collects the pulse wave signal in the detection airbag 22, and The information is transmitted to the information processing unit 101 inside the main body 10 , and the information processing unit 101 determines the final measured blood pressure value according to the pulse wave signal received by the second sensor 52 .

The measured blood pressure value obtained after the measurement can be expressed from the main body 10 to the blood pressure monitor in the form of display or sound. At this point, the blood pressure measurement ends. The blood pressure measuring device is reset to the initial state.

In this embodiment, the information processing unit 101 is different from the control center that controls the air pump 3, the switch valve assembly 4 and the sensor assembly in the main body 10, and is only responsible for collecting and processing the collected pulse wave signal, so in FIG. 5 , to display the connection relationship between the information processing unit 101 and the sensor assembly 5 .

Example 2:

As shown in FIG. 7 , the difference from Embodiment 1 is that the airbag structure 2 of this embodiment further includes a pressurized airbag 23 , the pressurized airbag 23 is located between the detection airbag 22 and the fixing belt 11 , and the pressurized airbag 23 covers the detection airbag 23 . outside of the airbag 22 .

Another difference between this embodiment and Embodiment 1 is that the on-off valve assembly 4 further includes a third on-off valve 43 , as shown in FIG. located in the third flow channel 230 . The flow of the pressurization control method of this embodiment is shown in FIG. 9 , which is the same as the first two program steps in Embodiment 1. Before triggering the blood pressure measurement program, the blood pressure measurement device should be worn to ensure that the reinforcement airbag 21 is located at the wrist. On the back of the wrist on the same side as the back of the hand, the detection airbag 22 is located on the front of the wrist on the same side as the wrist and the palm.

After the blood pressure measurement procedure is triggered, the first switch valve 41 is set to open state, the second and third switch valves 43 are set to closed state, and the air pump 3 inflates the reinforcement airbag 21 through the first switch valve 41 in the open state.

During the inflation and expansion of the reinforcement airbag 21, the first sensor 51 measures the pulse wave signal in the reinforcement airbag 21. When the first sensor 51 detects the initial pulse wave signal in the reinforcement airbag 21, the first switch valve 41 and the The second on-off valve 42 is set to the open state, and the air pump 3 continues to operate. The air pump 3 inflates the detection air bag 22 through the second on-off valve 42 while inflating the reinforcement airbag 21 through the first on-off valve 41 .

When the air pressure value in the detection airbag 22 reaches a preset air pressure value (10 mmhg in the specific embodiment of the present invention), the second switch valve 42 is set to a closed state, and the inflation of the detection airbag 22 is stopped. At the same time, continue to inflate the reinforcement airbag 21 until the second sensor 52 receives the initial pulse wave, the first switch valve 41 is set to a closed state, and the third switch valve 43 is set to an open state. At this time, the air pump 3 stops inflating the detection airbag 22 and the pressurizing airbag 23, and inflates the pressurizing airbag 23 through the third switch valve 43 in an open state.

During the inflation and expansion of the pressurized air bag 23, when the second sensor 52 detects that the pulse wave signal in the detection air bag 22 reaches a normal pulse wave, the third switch valve 43 is set to a closed state. Both the second and third on-off valves 43 are closed, the air pump 3 stops working, the second sensor 52 collects the pulse wave signal in the detection airbag 22, and transmits it to the information processing unit 101 inside the main body 10, and the information processing unit 101 according to The pulse wave signal received by the second sensor 52 determines the final measured blood pressure value.

Example 3:

The external structure diagram of the blood pressure measuring device of this embodiment is the same as that of the second embodiment, see FIG. 7 . As shown in FIG. 10, the difference from the structure of the blood pressure measuring device in Embodiment 2 is that the sensor assembly 5 in Embodiment 2 includes a first sensor 51 and a second sensor 52; in this embodiment, the sensor assembly 5 As a single sensor, connected in the detection airbag 22.

Due to the difference in the number of sensors and their installation positions in the sensor assembly 5, the method of controlling the fluid in the blood pressure measuring device is also different. As shown in FIG. 11 , in this embodiment, after the blood pressure measurement program is triggered, the control method for the fluid in the blood pressure measurement device includes the following steps:

The first stage:

The first switch valve 41 is set to an open state, the second and third switch valves 43 are set to a closed state, and the air pump 3 inflates the reinforcement airbag 21 through the first switch valve 41 that is in the open state;

When the air pump 3 inflates the reinforcement airbag 21 for a preset period of time, the first switch valve 41 is set to be in a closed state, and the inflation of the reinforcement airbag 21 is stopped.

At this time, the second switch valve 42 is quickly opened and closed several times, and the detection air bag 22 is inflated by pulse through the air pump 3 or the reinforcement air bag 21, and after the pulse inflation is completed, the second switch valve 42 is set to be closed.

It is detected whether the air pressure in the detection airbag 22 exceeds the preset pressure value. If the air pressure in the detection airbag 22 exceeds the preset pressure value, the first switch valve 41 is opened, and the gas in the reinforcement airbag 21 is discharged while retaining the air pressure in the detection airbag 22. gas.

second stage:

The first switch valve 41 is set to be in an open state, and the air pump 3 operates to inflate and pressurize the reinforcement airbag 21 through the first switch valve 41. When the air pressure in the reinforcement airbag 21 reaches a preset pressure value (in the present invention, In the specific embodiment, when 45mmhg) is used, the first switch valve 41 is set to be in a closed state, and the inflation of the reinforcement airbag 21 is stopped.

The third on-off valve 43 is set to be in an open state, and the air pump 3 operates to inflate and pressurize the pressurizing air bag 23 through the third on-off valve 43 . During the inflation and expansion of the pressurized airbag 23 , when the sensor assembly 5 collects a normal pulse wave signal, the third switch valve 43 is closed to stop the inflation of the pressurized airbag 23 .

The second sensor 52 collects the pulse wave signal in the detection balloon 22 and transmits it to the information processing unit 101 inside the main body 10 . The information processing unit 101 determines the final measured blood pressure value according to the pulse wave signal received by the second sensor 52 .

Example 4:

As shown in FIG. 12 , in this embodiment, the on-off valve assembly 4 further includes a fourth on-off valve 44 , and the fourth on-off valve 44 communicates with the internal flow channel of the main body 10 and the outside atmosphere. In the above-described method for controlling the internal air flow of the blood pressure measuring device, the fourth on-off valve 44 is kept in the open state in the same way as other on-off valves in the initial state. After the blood pressure measurement program is triggered, the fourth switch valve 44 is always in a closed state, and when the blood pressure measurement device completes the blood pressure measurement, the fourth switch valve 44 is in an open state.

The arrangement of the fourth on-off valve 44 can improve the efficiency of the air pump 3 inflating the airbag structure 2 , and at the same time can improve the deflation efficiency of the airbag structure 2 and the main body 10 after the blood pressure measurement is completed.

In the present invention, when the air pump 3 inflates the reinforcement airbag 21 and the pressurizing airbag 23, the linear upward pressure method is adopted, and the linear increase and pressure are used to make the air pressure in the reinforcement airbag 21 or the pressurization airbag 23 increase uniformly with time. , In the specific embodiment of the present invention, the pressure increase speed of the linear increase pressure is about 3mmhg of pressure value increase in one second.

The preset pressure value and preset amplitude value mentioned in the present invention are determined through a large number of data tests. The tester will establish a data model according to the blood pressure and wrist characteristics of the tested person. According to this model, when the initial pulse of the tested person should be determined (that is, when the corresponding preset value is reached), the next blood pressure inflation measurement will be performed. step.

In the present invention, the normal pulse wave signal generally refers to the oscillating pulse wave caused by the balloon gradually compressing the arterial blood vessel after the pressure is above 45 mmHg. The amplitude of this waveform increases and then decreases with the gradual increase of pressure. According to the principle of oscillometric method, when the amplitude is the maximum value, it is the mean arterial pressure, and the individual blood pressure value is calculated according to the mean arterial pressure and the buck-boost rate; the initial pulse wave refers to the weak pulse wave when the detection balloon 22 receives the pulse and just presses the balloon. pulse wave.

The above are the preferred embodiments of the present invention. For those of ordinary skill in the art, without departing from the principles of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention.

Claims

A blood pressure measuring device, comprising a main body (10) and a fixing belt (11) provided on the main body (10), the main body (10) and the fixing belt (11) forming a measurement ring, which surrounds a measured part, and is characterized in that :

It also includes an airbag structure (2), which is arranged between the measurement ring and the part of the human body where the part to be measured is located;

The main body (10) is provided with

- an air pump (3) in communication with the airbag structure (2) for inflating the airbag structure (2);

- an on-off valve assembly (4), arranged in the fluid flow channel in which the air pump (3) communicates with the airbag structure (2), for controlling the flow of fluid in the main body (10) and the airbag structure (2);

- a sensor assembly (5), arranged in the fluid flow channel formed by the interconnection between the air pump (3) and the airbag structure (2), and used for detecting pressure changes in the flow channel;

- An information processing unit (101), connected to the sensor, and processing the pressure data detected by the sensor assembly (5) to determine a blood pressure value.
The blood pressure measuring device according to claim 1, characterized in that: the airbag structure (2) comprises a reinforcement airbag (21) and a detection airbag (22), and the reinforcement airbag (21) is arranged between the measurement ring and the human body. between the parts; the detection airbag (22) covers the measured part and is located between the measured part and the measurement ring; the air pump (3) is respectively connected to the reinforcement airbag (21) and the detection airbag (22); the air pump (3) communicates with the reinforcement airbag (21) to form a first flow channel (210), and the air pump (3) communicates with the detection airbag (22) to form a second flow channel (220).
The blood pressure measuring device according to claim 2, characterized in that: the on-off valve assembly (4) comprises a first on-off valve (41) and a second on-off valve (42), and the sensor assembly (5) comprises a first on-off valve (41) and a second on-off valve (42). A sensor (51) and a second sensor (52), the first on-off valve (41) and the first sensor (51) are located in the first flow channel (210), the second on-off valve (42) and the first on-off valve (41) Two sensors (52) are located in the second flow channel (220).
The blood pressure measuring device according to claim 2, characterized in that: the airbag structure (2) further comprises a pressurizing airbag (23), and the pressurizing airbag (23) is located between the detecting airbag (22) and the Between the fixing belts (11), the pressurized airbag (23) covers the outside of the detection airbag (22); the air pump (3) communicates with the pressurized airbag (23) to form a third flow channel (230).
The blood pressure measuring device according to claim 4, characterized in that: the on-off valve assembly (4) comprises a first on-off valve (41), a second on-off valve (42) and a third on-off valve (43), the on-off valve (43) The sensor assembly (5) includes a first sensor (51) and a second sensor (52), the first switch valve (41) and the first sensor (51) are located in the first flow channel (210), the first switch valve (41) and the first sensor (51) The second on-off valve (42) and the second sensor (52) are located in the second flow channel (220), and the third on-off valve (43) is located in the third flow channel (230).
The blood pressure measuring device according to claim 4, characterized in that: the on-off valve assembly (4) comprises a first on-off valve (41), a second on-off valve (42) and a third on-off valve (43), the on-off valve (43) The sensor assembly (5) includes a second sensor (52), the first switch valve (41) is located in the first flow channel (210), the second switch valve (42) and the second sensor (52) are located in the In the second flow channel (220), the third on-off valve (43) is located in the third flow channel (230).
The blood pressure measuring device according to any one of claims 1 to 6, characterized in that: the on-off valve assembly (4) further comprises a fourth on-off valve (44), and the fourth on-off valve (44) communicates with the The internal flow channel of the main body (10) and the outside atmosphere.
The blood pressure measuring device according to any one of claims 1 to 6, characterized in that it further comprises a shaping plate (6), and the shaping plate (6) is fixed on the side of the main body (10) in contact with the body part, so that the The shaping plate (6) is an arc-shaped plate-like structure, and the airbag structure (2) is located between the shaping plate (6) and the body part.
A control method for a blood pressure measurement device, characterized in that it comprises the blood pressure measurement device according to claim 2 or 3, and the control method comprises:

The reinforcement airbag (21) is inflated and pressurized by the air pump (3);

When the sensor assembly (5) detects that the pulse wave signal in the reinforcement airbag (21) reaches a preset amplitude, it stops inflating the reinforcement airbag (21);

Inflate and pressurize the detection airbag (22) through the air pump (3);

When the sensor assembly (5) detects a normal pulse wave signal in the detection airbag (22), it stops inflating the detection airbag (22);

The information processing unit (101) obtains a blood pressure value obtained by pressurization measurement after performing information processing on the normal pulse wave signal detected by the sensor assembly (5), and completes the blood pressure measurement.
A control method for a blood pressure measurement device, characterized in that it comprises the blood pressure measurement device according to claim 4 or 5, and the control method includes:

The reinforcement airbag (21) is inflated and pressurized by the air pump (3);

After the sensor assembly (5) detects the initial pulse wave signal in the reinforcement air (21), the air pump (3) inflates the reinforcement airbag (21) and the detection airbag (22) simultaneously;

When the air pressure of the detection airbag (22) reaches a preset air pressure value, stop inflation into the detection airbag and continue to inflate the reinforcement airbag (21);

When the sensor assembly (5) detects the initial pulse wave signal in the detection airbag (22), it stops inflating the reinforcement airbag (21), and inflates the pressurizing airbag (23),

When the sensor assembly (5) detects a normal pulse wave signal in the detection airbag (22), it stops inflating the pressurized airbag (21);

The information processing unit (101) obtains a blood pressure value obtained by pressurization measurement after performing information processing on the normal pulse wave signal detected by the sensor assembly (5), and completes the blood pressure measurement.
A control method for a blood pressure measurement device, characterized in that it comprises the blood pressure measurement device according to claim 4 or 6, and the control method comprises:

The first stage:

The reinforcement airbag (21) is inflated and pressurized by the air pump (3) for a preset time period, and the inflation of the reinforcement airbag (21) is stopped;

Quickly open and close the switch valve assembly (4), and perform pulse inflation to the detection airbag (22) through the reinforcement airbag (21);

When the sensor assembly (5) detects that the air pressure in the sensing airbag exceeds a preset pressure value, it stops pulse inflation to the detection airbag (22);

venting the gas in the reinforcement airbag (21) and retaining the gas in the detection airbag (22);

second stage:

The reinforcement airbag (21) is inflated and pressurized by the air pump (3);

When the inner pressure of the reinforcement airbag (21) reaches a preset pressure value, stop inflating the reinforcement airbag (21);

The pressurized air bag (23) is inflated and pressurized by the air pump (3);

After the sensor assembly (5) detects a normal pulse wave signal in the detection airbag (22), it stops inflating the pressurized airbag (23);

The information processing unit (101) obtains a blood pressure value obtained by pressurization measurement after performing information processing on the normal pulse wave signal detected by the sensor assembly (5), and completes the blood pressure measurement.