WO2015067173A1

WO2015067173A1 - Pulse signal checking method and blood pressure measuring device

Info

Publication number: WO2015067173A1
Application number: PCT/CN2014/090344
Authority: WO
Inventors: 陈云权; 周萌
Original assignee: 康尚医疗技术（丹阳）有限公司
Priority date: 2013-11-06
Filing date: 2014-11-05
Publication date: 2015-05-14

Abstract

A blood pressure measuring device and method. The device comprises a cuff and a main machine (4) connected with the cuff. An upstream bulb (1) and a downstream bulb (2) are respectively positioned at the upstream and the downstream of the arterial blood flow of the limb to be measured, the downstream bulb (2) being used to detect changes in the pulse signal. A first pressure sensor (3) detects the blood flow pulse change caused by the pressure change of the upstream bulb (1), and a second pressure sensor (5) detects the pulse signal carried by the downstream bulb (2). A microprocessor controls an air pump (6) and a leak valve (7) and processes the pressure value and/or pulse signal detected by the first pressure sensor (3) and the second pressure sensor (5). Using the blood pressure measuring device, two inflation bulbs are tied on a limb and apply pressure so as to effectively detect the pressure and pulse signal therein, thereby accurately and reliably measuring blood pressure and enabling the measurement results to be stable.

Description

Pulse signal detecting method and blood pressure measuring device

Technical field

The invention belongs to the technical field of medical instruments, and particularly relates to a method for detecting an arterial blood pulse signal and a blood pressure measuring device using the same, in particular to a bloodstream of two limbs at the same time. A method of detecting a pressure and a pulse signal and a blood pressure measuring device based on the method.

Background technique

One of the most common methods of blood pressure measurement is to use a cuff with an inflatable balloon that first blocks the blood flow of the body's limb arteries and then slowly decompresses it. During the decompression process, blood flow is detected. The Korotkoff sound generated when the zone is blocked, or the change in the intensity of the pulse wave signal generated by the arterial pressure in the cuff, determines the systolic blood pressure and diastolic blood pressure of the arterial blood. Patent No. CN201010247968.6, entitled "A Non-Invasive Blood Pressure Measurement Device and Measurement Method Therefor", describes a sphygmomanometer that uses a pulse wave probe to detect pulsation signals downstream of the cuff to determine systolic and diastolic blood pressure. The pulse wave probe detects the pulsation signal of the downstream artery of the cuff through a pressure sensor or a photoelectric sensor. The patent number is CN201220159276.0, and the patent document entitled "A double airbag strap" introduces a double body coupling type. The double airbag sleeve has an upstream airbag strap body and a downstream airbag strap body, and the upstream airbag strap body and the downstream airbag strap body are fixedly connected within 30 cm according to an arterial blood flow direction. The downstream airbag strap is used to detect a blood flow pulse downstream of the tested limb and thereby determine the pressure of the arterial blood of the limb being tested.

The prior art has not solved the manner in which the upstream and downstream airbag straps are pressurized and pressurized to what extent, in order to most effectively detect blood flow pulses that can be used to measure the blood pressure of the measured limb in the upstream and downstream airbag straps. To accurately and reliably measure the blood pressure problem.

Summary of the invention

In order to solve the above problems, the present invention provides an accurate and reliable sphygmomanometer, and more particularly to a method for inflating and pressurizing two inflatable airbags ligated on a limb to effectively detect a pulse signal therein. And a device for accurately measuring the sphygmomanometer using the method.

In order to achieve the above object, the present invention is achieved by the following technical solutions:

The invention provides a blood pressure measuring device for measuring arterial blood through a limb part of a test subject Pressure, measuring device includes

Two inflatable airbag upstream and downstream airbags; the upstream airbag and the downstream airbag are in the same cuff or in two connected different cuffs or in two different cuffs that are not connected, the cuff is used for binding On a limb being tested;

Two pressure sensors, a first pressure sensor and a second pressure sensor, respectively connected to one or both of the upstream air bag and the air bag;

A microprocessor that performs a blood pressure measurement process that includes the following steps:

A) pressurizing the downstream balloon to a pressure value between the measured arterial systolic pressure and diastolic pressure, or a pressure value between the mean blood pressure value of the measured artery minus 10 mmHg and the average blood pressure value plus 20 mmHg, or a pressure value So that the amplitude of the pulse signal detected in the downstream airbag at this pressure value is greater than a given value;

B) pressurizing the upstream balloon to a pressure value above the systolic blood pressure of the artery to be tested;

C) Slowly deflation of the upstream airbag, during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the pulse signal in the downstream airbag is simultaneously measured by the second pressure sensor, according to the pulse signal and the upstream The air pressure in the balloon, or the relationship between the pulse signal and the air pressure in the upstream balloon, determines the measured systolic or diastolic blood pressure.

A further improvement of the present invention resides in that in step A), the downstream balloon is pressurized to a pressure value between the systolic pressure and the diastolic pressure of the artery to be tested and the average blood pressure value of the downstream balloon is pressurized to the artery to be measured minus 10 mmHg. And a method of adding a pressure value between the average blood pressure value and 20 mmHg is to detect the pulse signal carried by the air pressure signal in the downstream airbag in real time during the process of pressurizing the downstream airbag, and when the amplitude of the pulse signal increases from zero to the maximum, Then, when the descent begins, the pressurization is stopped; and the downstream air bag is pressurized to a pressure value such that the amplitude of the pulse signal detected in the downstream air bag at the pressure value is greater than a given value, which will be downstream During the process of airbag pressurization, the pulse signal carried by the air pressure signal in the downstream airbag is detected in real time, and when the amplitude of the pulse signal increases from zero to a given value, the pressurization is stopped;

In step A), the pulse signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg, preferably 1.5 mmHg.

In step B), the method of pressurizing the upstream balloon to a pressure value higher than the measured systolic blood pressure is to monitor the change of the amplitude of the pulse signal in the downstream airbag in real time during the pressurization of the upstream balloon. The amplitude of the pulse signal in the downstream airbag changes from large to small as the air pressure of the upstream airbag increases, and finally disappears. Stop the pressurization.

A further improvement of the present invention is that the downstream airbag is pressurized to a pressure value such that the amplitude of the pulse signal detected in the downstream airbag at the pressure value is greater than a given value by compressing the downstream airbag segment. And after each end of the pressurization, the pulse signal in the downstream airbag is detected. When the amplitude of the pulse signal is greater than a given value, the pressurization is stopped, and the segmentation targets for the downstream airbag segment are: 80 mmHg, 120 mmHg, 160 mmHg, 200mmHg.

A further improvement of the present invention is that in step C), during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the first pulse in the downstream airbag is measured by the second pressure sensor. The occurrence time of the signal determines the diastolic blood pressure of the artery to be measured according to the air pressure in the upstream airbag when the pulse signal is changed from small to large and then no longer changes.

A further improvement of the present invention is that, in step C), during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the pulse signal in the downstream airbag is measured by the second pressure sensor, according to the One of the following parameters of the pulse signal is changed from small to large and the air pressure value in the upstream airbag is no longer changed, and the blood pressure diastolic pressure of the measured artery is determined: the first half wave time width of the pulse signal, the second half wave time width, the full wave time width, and the amplitude The product of the amplitude and the width of any of the above time widths.

A pulse signal detecting method for detecting a relationship between a barometric pressure and a pulse signal and a mutual relationship in a cuff bound to a measured limb, the pulse signal detecting method comprising the following steps:

(1) Binding the upstream and downstream airbags to a measured limb, the upstream and downstream airbags are in the same cuff or in two different cuffs connected or in two different cuffs that are not connected The upstream balloon and the downstream balloon are respectively located upstream and downstream of the blood flow of the artery of the tested limb;

(2) respectively connecting the first pressure sensor and the second pressure sensor to the one or both of the upstream airbag and the downstream airbag through a gas communication component respectively or simultaneously;

(3) Pressurizing the downstream balloon to a pressure value between the measured systolic blood pressure and diastolic blood pressure, or a pressure value between the average blood pressure value of the measured artery minus 10 mmHg and the average blood pressure value plus 20 mmHg, or a pressure a value such that the amplitude of the pulse signal detected in the downstream airbag at this pressure value is greater than a given value;

(4) pressurizing the upstream balloon to a pressure value higher than the systolic blood pressure of the artery to be tested;

(5) Slowly deflation of the upstream airbag, during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the downstream airbag is simultaneously measured by the second pressure sensor. The pulse signal in the measurement, thereby measuring the relationship between the time or amplitude parameter of the pulse signal and the air pressure value in the upstream balloon.

A further improvement of the invention resides in:

In the step (3), a method of pressurizing the downstream balloon to a pressure value between the systolic pressure and the diastolic pressure of the artery to be tested and an average blood pressure value of the downstream balloon to the artery to be measured minus 10 mmHg and the average blood pressure value A method of adding a pressure value between 20 mmHg is to detect the pulse signal carried by the air pressure signal in the downstream airbag in real time during the pressurization of the downstream airbag, and when the amplitude of the pulse signal increases from zero to the maximum, and then begins to descend, Stopping the pressurization and pressurizing the downstream bladder to a pressure value such that the amplitude of the pulse signal detected in the downstream bladder at this pressure value is greater than a given value is the process of pressurizing the downstream bladder Medium-time detecting the pulse signal carried by the air pressure signal in the downstream airbag, and stopping the pressure when the amplitude of the pulse signal increases from zero to a given value;

In the step (4), the method of pressurizing the upstream balloon to a pressure value higher than the measured systolic blood pressure is to monitor the change of the amplitude of the pulse signal in the downstream airbag in real time during the pressurization of the upstream balloon. When the pulse signal amplitude in the downstream airbag changes from large to small as the air pressure of the upstream airbag increases, and finally disappears, the pressure is stopped; the pulse signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg, preferably 1.5mmHg.

Pressurizing the downstream airbag to a pressure value such that the amplitude of the pulse signal detected in the downstream airbag at this pressure value is greater than a given value by pressurizing the downstream airbag segment and ending the endurance of each segment After that, the pulse signal carried by the air pressure signal in the downstream airbag is detected. When the amplitude of the pulse signal is greater than a given value, the pressurization is stopped, and the segment targets of the downstream airbag segmental press are 80 mmHg, 120 mmHg, 160 mmHg, and 200 mmHg.

A further improvement of the present invention is that during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the pulse signal in the downstream airbag is measured by the second pressure sensor, thereby measuring the pulse signal. The small and large air pressure in the upstream airbag when it is no longer changed.

A further improvement of the present invention is that during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the one of the following parameters of the pulse signal is changed from small to large and then no longer changed. The air pressure value in the upstream airbag determines the blood diastolic pressure of the measured artery: the product width of the first half-wave time width, the second half-wave time width, the full-wave time width, the amplitude, and the amplitude of the pulse signal and the arbitrary time width.

A further improvement of the present invention is that in step C), during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the first pulse in the downstream airbag is measured by the second pressure sensor. The occurrence time of the signal determines the systolic blood pressure of the artery to be measured based on the air pressure in the upstream balloon when the first pulse signal occurs.

A further improvement of the present invention is that, in step C), during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the first and second of the downstream airbags are measured by the second pressure sensor. The amplitude and time of occurrence of the pulse signal, the value of the air pressure in the upstream balloon (1) at the occurrence of the first and second pulse signals, determines the blood systolic blood pressure of the artery to be measured.

(5) Slowly deflation of the upstream airbag, during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the pulse signal in the downstream airbag is simultaneously measured by the second pressure sensor, thereby measuring the pulse in the pulse The value of the air pressure in the upstream air bag when the signal occurs.

A further improvement of the invention resides in:

In the step (3), a method of pressurizing the downstream balloon to a pressure value between the systolic pressure and the diastolic pressure of the artery to be tested and an average blood pressure value of the downstream balloon to the artery to be measured minus 10 mmHg and the average blood pressure value A method of adding a pressure value between 20 mmHg is to detect the pulse signal carried by the air pressure signal in the downstream airbag in real time during the pressurization of the downstream airbag, and when the amplitude of the pulse signal increases from zero to the maximum, and then begins to descend, Stop the pressurization and pressurize the downstream bladder to a pressure value so that at this pressure value The method of detecting the amplitude of the pulse signal in the downstream airbag is greater than a given value, and the pulse signal carried by the air pressure signal in the downstream airbag is detected in real time during the process of pressurizing the downstream airbag, and the amplitude of the pulse signal is increased by zero. When it is greater than a given value, the pressurization is stopped;

In the step (4), the method of pressurizing the upstream balloon to a pressure value higher than the measured systolic blood pressure is to monitor the change of the amplitude of the pulse signal in the downstream airbag in real time during the pressurization of the upstream balloon. When the amplitude of the pulse signal in the downstream airbag changes from large to small as the air pressure of the upstream airbag increases, the pressure is stopped when it finally disappears.

A further improvement of the present invention resides in that in step (3), the pulse signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg, preferably 1.5 mmHg.

Pressurizing the downstream airbag to a pressure value such that the amplitude of the pulse signal detected in the downstream airbag at this pressure value is greater than a given value by pressurizing the downstream airbag segment and ending the endurance of each segment After that, the pulse signal carried by the air pressure signal in the downstream airbag is detected, and when the pulse signal amplitude is greater than a given value, the pressure is stopped.

A further improvement of the invention consists in that the segmentation targets for the downstream airbag segmentation are 80 mmHg, 120 mmHg, 160 mmHg and 200 mmHg.

A further improvement of the present invention is that during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the occurrence time of the first pulse signal in the downstream airbag is measured by the second pressure sensor, thereby The air pressure in the upstream balloon at the time of the first pulse signal is measured.

A further improvement of the present invention is that during the slow deflation of the upstream airbag, the changing air pressure in the upstream airbag is measured by the first pressure sensor, and the first and second pulse in the downstream airbag are measured by the second pressure sensor. The amplitude and time of occurrence of the signal to measure the air pressure in the upstream balloon during the first pulse signal and during a pulse period prior to this time.

The invention has the beneficial effects that the blood pressure measuring device provided by the invention is to bind two inflatable airbags on one limb to pressurize, effectively detect the pressure and pulse signals therein, thereby accurately and reliably measuring blood pressure, and the measurement result is stable. .

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a plan development view of a dual airbag sector sleeve of the present invention.

2 is a schematic view of the use of the dual airbag sector sleeve of the present invention for the forearm of the hand.

Figure 3 is a schematic view showing the connection of the blood pressure measuring device of the present invention.

Fig. 4 is a schematic view showing the connection of the blood pressure measuring device of the present invention.

Fig. 5 is a schematic view showing the connection of the blood pressure measuring device of the present invention.

Figure 6 is a timing chart of the systolic and diastolic pulse signals of the reduced pressure measurement method of the present invention.

Figure 7 is an enlarged view of a portion 6A of Figure 6 of the present invention.

Among them: 1-upstream airbag, 2-downstream airbag, 3-first pressure sensor, 4-host, 5-second pressure sensor, 6-air pump, 7-vent valve, 8-sleeve, 9-upstream air pipe, 10 - Downstream trachea.

detailed description

The present invention will be further described in detail with reference to the accompanying drawings and the accompanying drawings.

As shown in FIGS. 1-7, the present invention is a blood pressure measuring device for measuring arterial blood pressure through a limb portion of a subject, the blood pressure measuring device including a double balloon fan-shaped cuff 8, the double balloon The scalloped sleeve 8 may be a double-balloon fan-shaped cuff or two ordinary cuffs instead of the upstream air bag 1 and the downstream air bag 2, respectively.

Embodiment 1 Apparatus and method for measuring systolic blood pressure and pulse signal using a reduced pressure method and method and measuring device for measuring systolic pressure pulse signal using a reduced pressure method

The present invention is a blood pressure measuring device comprising a cuff 8 and a main body 4 connected to the cuff 8, the cuff 8 being a double-balloon fan-shaped cuff, and the double-balloon fan-shaped cuff is a cuff with a double air tube and a dual air pocket of the upstream air bag 1 and the downstream air bag 2 bound to the limb to be tested, the upstream air bag 1 and the downstream air bag 2 respectively located upstream and downstream of the blood flow of the measured limb artery After binding, the upstream airbag 1 is fixed to block the blood flow of the elbow artery of the test subject upstream of the wrist pulse, and is connected to the upstream airbag interface on the main body 4, and the downstream airbag 2 is fixed downstream of the blood flow direction of the artery. The part detects the wrist pulse beat and is connected to the downstream airbag interface on the main body 4, the downstream airbag 2 is configured to detect the change information of the pulse signal, and sense the blood flow pulse generated by the pressure change of the upstream airbag 1 in real time. The host 4 includes a microprocessor and a human interaction interface including a keyboard and a display connected to the microprocessor, the host 4 further includes an air pump 6, a vent valve 7, The machine 4 further includes a first pressure sensor 3 and a second pressure sensor 5, the first pressure sensor 3 and the second pressure sensor 5 passing through the gas communication member and one or both of the upstream airbag 1 and the downstream airbag 2 Separately or simultaneously, the air pump 6 is at least one for the upstream air bag 1 and the downstream air bag 2 One or two inflated air pumps 6 that are deflating valves 7 for slow or rapid deflation of one or both of the upstream air bag 1 and the downstream air bag 2, the micro The processor controls the air pump 6, the deflation valve 7 and the process to detect one of the upstream air bag 1 and the downstream air bag 2, respectively or simultaneously, by one or both of the first pressure sensor 3 and the second pressure sensor 5 or The pressure value, pulse signal, or pressure value and pulse signal in the two.

A control and data processing program is provided in the microprocessor, the control and processing program performing a blood pressure measurement process comprising the following steps:

A) pressurizing the downstream balloon 2 to a pressure value between the measured systolic pressure and diastolic pressure, or a pressure value between the average blood pressure value of the measured artery minus 10 mmHg and the average blood pressure value plus 20 mmHg, or a pressure value at which the amplitude of the pulse signal detected in the downstream airbag 2 is greater than a given value;

B) pressurizing the upstream balloon 1 to a pressure value higher than the systolic blood pressure of the artery to be tested;

C) the airbag 1 is slowly deflated, and during the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, The measured systolic blood pressure is determined based on the pulse signal and the air pressure in the upstream airbag 1, or the relationship between the pulse signal and the air pressure in the upstream airbag 1.

Scheme 1: As shown in Figures 3 and 6-7, the method for detecting the dual balloon pulse signal and systolic blood pressure using the decompression method includes the following steps:

1) Bind a double-balloon scalloped cuff, or a double-balloon non-sectoral cuff, or two coupled cuffs, or two non-coupling cuffs to a tested limb, where the upstream balloon 1 and the downstream airbag 2 are respectively located upstream and downstream of the limb arterial blood flow, and the upstream air bag 1 and the downstream air bag 2 are respectively connected to the upstream air bag interface and the downstream air bag interface on the main body 4 through the upstream air pipe 9 and the downstream air pipe 10;

2) pressing the start button of the keyboard of the host 4, the second vent valve is closed, the second air pump is inflated to the downstream air bag 2, and the air pressure of the downstream air bag 2 is slowly increased from zero;

3) There are 4 implementations in this step, such as steps 3-1), 3-2), 3-3) and 3-4):

3-1) During the pressurization of the downstream airbag 2, the pulse signal in the downstream airbag 2 is detected in real time, and when the amplitude of the pulse signal increases from zero to the maximum, and then begins to descend, the pressurization is stopped, and the downstream airbag is stopped. 2 is pressurized to a pressure value between the measured arterial systolic pressure and diastolic blood pressure;

3-2) During the pressurization of the downstream airbag 2, the pulse signal in the downstream airbag 2 is detected in real time, and when the amplitude of the pulse signal increases from zero to the maximum, and then begins to descend, the pressurization is stopped, and the downstream airbag is stopped. 2 a pressure value between the average blood pressure value of the artery to be measured minus 10 mmHg and the average blood pressure value plus 20 mmHg;

3-3) detecting the pulse signal in the downstream airbag 2 in real time during the pressurization of the downstream airbag 2, and stopping the pressurization when the amplitude of the pulse signal increases from zero to a given value, the amplitude of the pulse signal Given a value between 1.3 mmHg and 1.8 mmHg, the preferred pulse signal amplitude is given by 1.5 mmHg;

3-4) pressurizing the downstream airbag 2 in sections, and detecting the pulse signal in the downstream airbag 2 after the end of each section of pressurization, and stopping the pressurization when the amplitude of the pulse signal is greater than a given value, the pair The segment target of the downstream balloon 2 segment compression is 80 mmHg, 120 mmHg, 160 mmHg, 200 mmHg, and the pulse signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg, and the preferred pulse signal amplitude is given at 1.5. mmHg;

4) the first vent valve is closed, the first air pump is inflated to the upstream air bag 1, and the pressure of the upstream air bag 1 is increased from zero;

5) There are two implementations in this step, such as steps 5-1) and 5-2):

5-1) During the pressurization of the upstream airbag 1, the change of the amplitude of the pulse signal in the downstream airbag 2 is monitored in real time, and the amplitude of the pulse signal in the downstream airbag 2 changes from large to small as the air pressure of the upstream airbag 1 increases. When it finally disappears, the pressurization is stopped, at which time the upstream balloon 1 is pressurized to a pressure value higher than the systolic blood pressure of the artery to be tested;

5-2) Pressurizing the upstream airbag 1 in sections, the segment target for which the upstream airbag 1 is pressurized is 180 mmHg, 240 mmHg, 280 mmHg, and the pulse in the downstream airbag 2 is detected after the end of each pressurization. a signal, when the pulse signal disappears, stopping the pressurization, at which time the upstream balloon 1 is pressurized to a pressure value higher than the measured systolic blood pressure;

6) controlling the first deflation valve to slowly deflate the upstream airbag 1, during the slow deflation of the upstream airbag 1, measuring the constantly changing air pressure in the upstream airbag 1 through the first pressure sensor 3, and measuring the downstream airbag 2 through the second pressure sensor The pulse signal is determined according to the pulse signal and the air pressure in the upstream airbag 1, and the measured arterial systolic pressure is determined. The method for determining the measured arterial systolic pressure is as follows, as in steps 6-1) and 6- 2):

6-1) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the occurrence time of the first pulse signal in the downstream airbag 2 is detected by the second pressure sensor 5. Determining the measured systolic blood pressure according to the air pressure in the upstream airbag 1 at the time when the first pulse signal occurs, for example, measuring the occurrence time of the peak of the first pulse signal in the detected downstream airbag 2, and measuring The air pressure value of the upstream airbag 1 at the time when the peak of the first pulse signal occurs, the air pressure value of the upstream airbag 1 is the measured arterial systolic pressure, or the peak value of the first pulse signal is measured. The air pressure value of the upstream airbag 1 at the time of occurrence, and the average value of the air pressure values of the upstream airbag 1 during the pulse period at two times before and after the peak of the occurrence of the peak of the first pulse signal, the average value being the artery to be measured Systolic pressure; that is, measuring the air pressure value of the upstream airbag 1 at the time when the peak occurs, and the air pressure value of the upstream airbag 1 at two times before and after the occurrence time of the peak, Average of 3 values is the measured systolic arterial pressure;

6-2) During the slow deflation of the upstream airbag 1, the constantly changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the first and second pulse in the downstream airbag 2 are measured by the second pressure sensor 5. The amplitude and time of occurrence of the signal, and the value of the air pressure in the upstream balloon 1 at the occurrence of the first and second pulse signals, determining the blood systolic blood pressure of the measured artery, for example, measuring the first and the first of the detected downstream airbags 2 The peak value and the occurrence time of the two pulse signals, and the two air pressure values in the upstream airbag 1 measured at the occurrence time of the peaks of the first and second pulse signals, according to the first of the downstream airbags 2 measured as described above And the peak value and the occurrence time of the second pulse signal are used to estimate the occurrence time of the pulse wave which is not detected by the previous pulse wave signal, and then based on the estimated time of occurrence of the previously detected pulse wave The two air pressure values in the upstream airbag 1 measured are used to calculate the air pressure value of the upstream airbag 1 at the time when the pulse wave of the first pulse wave signal of the downstream airbag 2 is not detected. The barometric pressure value is the measured arterial systolic pressure; or the measured amplitudes A4 and A5 of the first and second pulse signals in the downstream air bag 2 and the occurrence times t4 and t5 of the peak, and the measurement is at the first The peak pressure of the second and second pulse signals is generated at time t4 and t5. The two air pressure values P4 and P5 in the airbag 1 are measured (P5-(P5-P4)*A5/(A5-A4). )).

7) Opening the first deflation valve and the second deflation valve to deflate the upstream air bag 1 and the downstream air bag 2.

As shown in Fig. 6, t0-t4 shows a timing chart for detecting the systolic pressure pulse signal by the decompression method.

Option 2: As shown in Figure 4, using the decompression method to detect the dual balloon pulse signal and systolic blood pressure, including the following steps:

2) pressing the start button of the keyboard of the host 4, the first vent valve is closed, the first switch valve is closed, the second switch valve is opened, the first air pump is inflated to the air bag 2, and the air pressure of the downstream air bag 2 is slowly increased from zero;

4) the first vent valve is closed, the second switch valve is closed, the first switch valve is opened, the first air pump is inflated to the upstream air bag 1, and the pressure of the upstream air bag 1 is increased from zero;

5) There are two implementations in this step, such as steps 5-1) and 5-2):

6-1) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the occurrence time of the first pulse signal in the downstream airbag 2 is detected by the second pressure sensor 5. Determining the measured systolic blood pressure according to the air pressure in the upstream airbag 1 at the time when the first pulse signal occurs, for example, measuring the occurrence time of the peak of the first pulse signal in the detected downstream airbag 2, and measuring The air pressure value of the upstream airbag 1 at the time of occurrence of the peak of the first pulse signal, the air pressure value of the upstream airbag 1 is the measured arterial systolic pressure, or the occurrence of the peak of the first pulse signal is measured. The atmospheric pressure value of the upstream airbag 1 at the time, and the average value of the air pressure values of the upstream airbag 1 during the two pulse periods before and after the occurrence of the peak of the first pulse signal, which is the measured systolic blood pressure of the artery Or the air pressure value of the upstream airbag 1 at two times before and after the occurrence time of the peak, and the average value of the three values is the measured arterial systolic pressure;

6-2) During the slow deflation of the upstream airbag 1, the constantly changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the first and second pulse in the downstream airbag 2 are measured by the second pressure sensor 5. The amplitude and time of occurrence of the signal, and the value of the air pressure in the upstream balloon 1 at the time of the first and second pulse signals, determine the blood systolic blood pressure of the subject. For example, measuring the peak and occurrence time of the first and second pulse signals in the detected downstream airbag 2, and measuring two of the upstream airbags 1 at the occurrence time of the peaks of the first and second pulse signals The air pressure value is calculated according to the peak value and the occurrence time of the first and second pulse signals of the downstream airbag 2 measured above, and the time of occurrence of the pulse wave which is not detected by the first pulse wave signal is calculated, and then calculated according to the calculation The first undetected pulse wave The living time and the two air pressure values in the upstream airbag 1 measured above are used to calculate the air pressure value of the upstream airbag 1 at the time when the pulse wave of the first pulse wave signal of the downstream airbag 2 is not detected, which is the air pressure value. For the measured arterial systolic pressure; or measure the amplitudes A4 and A5 of the first and second pulse signals detected in the downstream balloon 2, and the occurrence times t4 and t5 of the peak, and measure the first and the first When the peak values of the two pulse signals occur at time t4 and t5, the two barometric pressure values P4 and P5 in the balloon 1 are measured (P5-(P5-P4)*A5/(A5-A4)).

7) Opening the first vent valve to close the first switching valve, opening the second switching valve, and deflation of the upstream air bag 1 and the downstream air bag 2.

Solution 3: As shown in FIG. 5, the method for measuring the systolic pressure pulse signal and measuring the blood pressure using the decompression method includes the following steps:

2) pressing the start button of the keyboard of the host 4, the three venting valve communicates the passage of the downstream air bag 2 and the air pump and blocks the passage of the upstream air bag 1, the air pump inflates the air bag 2, and the air pressure of the downstream air bag 2 slowly increases from zero;

4) The vent valve is closed, the three venting valve communicates the passage of the upstream air bag 1 and the air pump and blocks the passage of the downstream air bag 2, the air pump inflates the upstream air bag 1, and the pressure of the upstream air bag 1 increases from zero;

5) There are two implementations in this step, such as steps 5-1) and 5-2):

6) controlling the deflation valve to slowly deflate the upstream airbag 1, during the slow deflation of the upstream airbag 1, measuring the constantly changing air pressure in the upstream airbag 1 through the first pressure sensor 3, and measuring the downstream airbag 2 in the downstream airbag 2 through the second pressure sensor The pulse signal determines the systolic blood pressure to be measured according to the pulse signal and the air pressure in the upstream airbag 1, and the method for determining the systolic blood pressure of the artery to be measured is two, as in steps 6-1) and 6-2, respectively. :

6-1) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the occurrence time of the first pulse signal in the downstream airbag 2 is detected by the second pressure sensor 5. Determining the measured systolic blood pressure according to the air pressure in the upstream airbag 1 at the time when the first pulse signal occurs, for example, measuring the occurrence time of the peak of the first pulse signal in the detected downstream airbag 2, and measuring The air pressure value of the upstream airbag 1 at the time when the peak of the first pulse signal occurs, the air pressure value of the upstream airbag 1 is the measured arterial systolic pressure, or the peak value of the first pulse signal is measured. The air pressure value of the upstream airbag 1 at the time of occurrence, and the average value of the air pressure values of the upstream airbag 1 in the two pulse periods before and after the occurrence of the peak of the first pulse signal, the average value Is the measured arterial systolic pressure; or measuring the air pressure value of the upstream airbag 1 at the time of occurrence of the peak, and the air pressure value of the upstream airbag 1 at two times before and after the peak occurrence time, taking these three values The average value is the measured arterial systolic pressure;

7) Open the deflation valve, the three venting valve communicates the passage of the upstream air bag 1 and the air pump and blocks the passage of the downstream air bag 2, deflates the upstream air bag 1, and then connects the three vent valves to the passage of the downstream air bag 2 and the air pump and blocks the upstream air bag. The passage of 1 deflates the downstream airbag 2.

Example 2: Measurement of pulse signal and diastolic pressure by decompression method

The present invention is a blood pressure measuring device comprising a cuff 8 and a main body 4 connected to the cuff 8, the cuff 8 being a double-balloon fan-shaped cuff, and the double-balloon fan-shaped cuff is a cuff with a double air tube and a dual air pocket of the upstream air bag 1 and the downstream air bag 2 bound to the limb to be tested, the upstream air bag 1 and the downstream air bag 2 respectively located upstream and downstream of the blood flow of the measured limb artery After binding, the upstream airbag 1 is fixed to block the blood flow of the elbow artery of the test subject upstream of the wrist pulse, and is connected to the upstream airbag interface on the main body 4, and the downstream airbag 2 is fixed downstream of the blood flow direction of the artery. The part detects the wrist pulse beat and is connected to a downstream airbag interface on the main body 4, the downstream airbag 2 is configured to detect change information of the pulse signal, and sense blood flow generated by the pressure change of the upstream airbag 1 in real time. The host 4 includes a microprocessor and a human interaction interface including a keyboard and a display connected to the microprocessor. The host 4 further includes an air pump 6, a deflation valve 7, and the host 4 A first pressure sensor 3 and a second pressure sensor 5 are included, the first pressure sensor 3 and the second pressure sensor 5 being separately or simultaneously with one or both of the upstream airbag 1 and the downstream airbag 2 through a gas communication component In connection, the air pump 6 is at least one air pump 6 for inflating one or both of the upstream air bag 1 and the downstream air bag 2, and the air release valve 7 is for the upstream air bag 1 and the One or two slow or fast deflated deflation valves 7 in the downstream air bag 2, the microprocessor controlling the air pump 6, the deflation valve 7 and the treatment through the first pressure sensor 3 and the second pressure sensor 5 One or two separate or simultaneous detection of pressure values, pulse signals, or pressure values and pulse signals in one or both of the upstream balloon 1 and the downstream balloon 2, the device of the present invention may also be adapted for diastolic pressure Pulse letter The detection of a number, in which a control and data processing program is provided, the control and processing program performing a blood pressure measurement process comprising the following steps:

C) The airbag 1 is slowly deflated, and during the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is simultaneously measured by the second pressure sensor 5. The measured arterial diastolic pressure is determined based on the relationship between the pulse signal and the air pressure in the upstream airbag 1, or the relationship between the pulse signal and the air pressure in the upstream airbag 1.

Scheme 1, as shown in Figures 3 and 6-7, the diastolic pressure and pulse signals are measured by a reduced pressure method, including the following steps:

2) Press the start button of the keyboard of the main unit 4, the second vent valve is closed, and the second air pump is charged to the downstream air bag 2 Gas, the air pressure of the downstream air bag 2 slowly increases from zero;

5) There are two implementations in this step, such as steps 5-1) and 5-2):

6) controlling the first deflation valve, slowly deflation of the upstream airbag 1, during the slow deflation of the upstream airbag 1, measuring the constantly changing air pressure in the upstream airbag 1 through the first pressure sensor 3, and measuring the downstream airbag through the second pressure sensor 5 The pulse signal in 2 determines the diastolic blood pressure of the artery to be measured according to the pulse signal and the air pressure in the upstream airbag 1. The method for determining the diastolic blood pressure of the measured artery is as follows, as in steps 6-1) and 6 respectively. -2), 6-3), 6-4), 6-5) and 6-6):

6-1) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, according to the pulse signal The amplitude of the upstream airbag 1 is changed from small to large and the air pressure in the upstream airbag 1 is determined, and the measured arterial diastolic pressure is determined. For example, as shown in Fig. 7, the detected pulse signals p10, p11, p12, p13, p14 in the downstream airbag 2 are as shown in Fig. 7. And the amplitudes A10, A11, A12, A13, A14 and A15 of p15 are obtained as A10 < A11 < A12 < A13 = A14 = A15, and the time at which the first amplitude of the pulse signal is the largest and constant is detected, that is, The air pressure value of the upstream airbag 1 at time t13, which is the measured arterial diastolic pressure;

6-2) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, according to the pulse signal The time width of the full wave is changed from small to large, and the air pressure in the upstream airbag 1 is no longer changed, and the measured arterial diastolic pressure is determined. For example, as shown in FIG. 7, the detected pulse signals p10, p11, p12 in the downstream airbag 2, The full-wave time widths d0, d1, d2, d3, d4 and d5 of p13, p14 and p15 are obtained by d0 < d1 < d2 < d3 = d4 = d5, and the first full-wave time width of the pulse signal is measured to be the largest and The constant pulse signal generation time, that is, the air pressure value of the upstream airbag 1 at time t13, which is the measured arterial diastolic pressure;

6-3) During the slow deflation of the gas upstream capsule 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second overpressure sensor 5, according to the The first half-wave time width of the pulse signal is changed from small to large, and the air pressure in the upstream airbag 1 is no longer changed, and the measured arterial diastolic pressure is determined. For example, as shown in FIG. 7, the detected pulse signals p10, p11 in the downstream airbag 2, The first half-wave time widths d6, d7, d8, d9, d10 and d11 of p12, p13, p14 and p15 are obtained by d6 < d7 < d8 < d9 = d10 = d11, and the first first half-wave time width of the pulse signal is measured. The maximum and constant pulse signal generation time, that is, the air pressure value of the upstream airbag 1 at time t13, which is the measured arterial diastolic pressure;

6-4) Measuring the upstream airbag by the first pressure sensor 3 during the slow deflation of the upstream airbag 1 The constantly changing air pressure in 1 and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, according to the time width of the second half of the pulse signal, which increases from small to large, and finally does not change the air pressure in the upstream airbag 1, Determining the measured diastolic blood pressure of the artery, for example, as shown in Fig. 7, the detected second half-wave time widths d12, d13, d14, d15, d16 of the pulse signals p10, p11, p12, p13, p14 and p15 in the downstream airbag 2 D17, d12 <d13<d14<d15=d16=d17, measuring the pulse signal generation time at which the first half-wave time width of the pulse signal is maximum and constant, that is, the air pressure value of the upstream airbag 1 at time t13, The barometric pressure is the measured arterial diastolic pressure;

6-5) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, according to the pulse signal The area of the airbag 1 in the upstream airbag 1 is changed from small to large, and the measured arterial diastolic pressure is determined. For example, as shown in FIG. 7, the detected pulse signals p10, p11, p12, p13, p14 in the downstream airbag 2 are as shown in FIG. And the areas S10, S11, S12, S13, S14 and S15 of p15, S10 < S11 < S12 < S13 = S14 = S15, measuring the time at which the pulse signal of the first area of the pulse signal is the largest and constant, that is, The air pressure value of the upstream airbag 1 at time t13, which is the measured arterial diastolic pressure;

6-6) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, according to the pulse signal The area of the airbag 1 in the upstream airbag 1 is changed from small to large, and the measured arterial diastolic pressure is determined. For example, as shown in FIG. 7, the detected pulse signals p10, p11, p12, p13, p14 in the downstream airbag 2 are as shown in FIG. And p15 amplitudes A10, A11, A12, A13, A14 and A15, full wave time width d0, d1, d2, d3, d4 and d5, first half wave time width d6, d7, d8, d9, d10 and d11, second half The wave time widths d12, d13, d14, d15, d16 and d17, the product of the amplitude of the pulse signal in the downstream airbag 2 and the arbitrary time width described above, that is, A10*d0<A11*d1<A12*d2<A13*d3=A14 *d4=A15*d5, or A10*d6<A11*d7<A12*d8<A13*d9=A14*d10=A15*d11, or A10*d12<A11*d13<A12*d14<A13*d15=A14 *d16=A15*d17, measuring the first maximum and constant pulse signal generation time at the time of the product of the pulse signal amplitude and any of the above-mentioned time widths, that is, at time t13 Pressure value of the balloon 1, the pressure value is the measured diastolic blood pressure;

Option 2: As shown in Figure 4, the device and measurement side for measuring diastolic blood pressure and pulse signal using decompression method law

The diastolic blood pressure measurement pulse signal detection method includes the following steps:

2) pressing the start button of the keyboard of the host 4, the first vent valve is closed, the first switch valve is closed, the second switch valve is opened, the first air pump is inflated to the downstream air bag 2, and the air pressure of the downstream air bag 2 is slowly increased from zero;

5) There are two implementations in this step, such as steps 5-1) and 5-2):

6-3) Measuring the upstream airbag through the first pressure sensor 3 during the slow air deflation of the gas upstream capsule 1 The constant air pressure in 1 is measured by the second over-pressure sensor 5, and the pulse signal in the downstream airbag 2 is measured according to the first half-wave time width of the pulse signal, and the air pressure in the upstream airbag 1 is not changed at the last time. Determining the measured arterial diastolic pressure, for example, as shown in Fig. 7, the detected first half-wave time widths d6, d7, d8, d9, d10 and d11 of the pulse signals p10, p11, p12, p13, p14 and p15 in the downstream airbag 2 And d6<d7<d8<d9=d10=d11, measuring the pulse signal generation time at which the first first half-wave time width of the pulse signal is maximum and constant, that is, the air pressure value of the upstream airbag 1 at time t13, the air pressure value That is, the measured arterial diastolic pressure;

6-4) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, according to the pulse signal The posterior half-wave time width is changed from small to large, and the air pressure in the upstream airbag 1 is no longer changed, and the measured arterial diastolic pressure is determined. For example, as shown in FIG. 7, the detected pulse signals p10, p11, p12 in the downstream airbag 2 are as shown in FIG. , the post-half wave time widths d12, d13, d14, d15, d16 and d17 of p13, p14 and p15, d12 < d13 < d14 < d15 = d16 = d17, measured at the first half-wave time of the pulse signal The maximum and constant pulse signal generation time, that is, the air pressure value of the upstream airbag 1 at time t13, which is the measured arterial diastolic pressure;

6-6) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, according to the pulse signal The area of the airbag 1 in the upstream airbag 1 is changed from small to large, and the measured arterial diastolic pressure is determined. For example, as shown in FIG. 7, the detected pulse signals p10, p11, p12, p13, p14 in the downstream airbag 2 are as shown in FIG. And p15 amplitudes A10, A11, A12, A13, A14 and A15, full wave time width d0, d1, d2, d3, d4 and d5, first half wave time width d6, d7, d8, d9, d10 and d11, second half The wave time widths d12, d13, d14, d15, d16 and d17, the amplitude of the pulse signal in the downstream airbag 2 The product of any of the above-mentioned time widths, that is, A10*d0<A11*d1<A12*d2<A13*d3=A14*d4=A15*d5, or A10*d6<A11*d7<A12*d8<A13*d9=A14 *d10=A15*d11, or A10*d12<A11*d13<A12*d14<A13*d15=A14*d16=A15*d17, measuring the first of the product of the pulse signal amplitude and the arbitrary time width described above The maximum and constant pulse signal generation time, that is, the air pressure value of the upstream airbag 1 at time t13, which is the measured arterial diastolic pressure;

7) Opening the first deflation valve, closing the first switching valve, opening the second switching valve, and deflation of the upstream air bag 1 and the downstream air bag 2.

Scheme 3: As shown in Figure 5, a method for measuring diastolic blood pressure and pulse signals using a reduced pressure method includes the following steps:

3-4) pressurizing the downstream airbag 2 in sections, and detecting the downstream airbag 2 after the end of each section of pressurization a pulse signal, when the amplitude of the pulse signal is greater than a given value, stopping the pressurization, and the segmentation target for segmenting the downstream airbag 2 is 80 mmHg, 120 mmHg, 160 mmHg, 200 mmHg, and the pulse signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg, the preferred pulse signal amplitude is given by 1.5 mmHg;

5) There are two implementations in this step, such as steps 5-1) and 5-2):

6-2) During the slow deflation of the upstream airbag 1, the continuously changing air pressure in the upstream airbag 1 is measured by the first pressure sensor 3, and the pulse signal in the downstream airbag 2 is measured by the second pressure sensor 5, Determining the measured diastolic blood pressure according to the air pressure in the upstream airbag 1 when the time width of the full wave of the pulse signal is changed from small to large, for example, as shown in FIG. 7, the pulse signal p10 in the detected downstream airbag 2 , p11, p12, p13, p14 and p15 full-wave time widths d0, d1, d2, d3, d4 and d5, get d0 < d1 < d2 < d3 = d4 = d5, measure the first in the pulse signal The pulse signal is generated at the time when the pulse time width is the largest and constant, that is, the air pressure value of the upstream airbag 1 at time t13, which is the measured arterial diastolic pressure;

The device for measuring blood pressure provided by the invention is to bind two inflatable airbags on one limb for pressurization, and the most effective blood flow pulse for detecting the blood pressure of the measured limb is detected in the upstream and downstream airbag straps, and the pulse is effectively detected therein. The signal, accurate and reliable measurement of blood pressure, and the measurement results are stable.

Claims

A blood pressure measuring device for measuring arterial blood pressure through a limb portion of a subject, wherein the measuring device comprises

Two inflatable airbag upstream airbags (1) and downstream airbags (2); the upstream airbag (1) and the downstream airbag (2) are in the same cuff or in two different cuffs connected or in two The cuffs are used to bind to a limb to be tested;

Two pressure sensors, a first pressure sensor (3) and a second pressure sensor (5), respectively or separately connected to one or both of the upstream air bag (1) and the downstream air bag (2);

A microprocessor that performs a blood pressure measurement process that includes the following steps:

A) pressurizing the downstream balloon (2) to a pressure value between the measured arterial systolic pressure and diastolic pressure, or a pressure value between the mean blood pressure value of the measured artery minus 10 mmHg and the average blood pressure value plus 20 mmHg Or a pressure value such that the amplitude of the pulse signal detected in the downstream airbag (2) at this pressure value is greater than a given value;

B) pressurizing the upstream balloon (1) to a pressure value higher than the measured systolic blood pressure;

C) slowly deflated the upstream airbag (1), and during the slow deflation of the upstream airbag (1), the changing air pressure in the upstream airbag (1) is measured by the first pressure sensor (3), And simultaneously measuring a pulse signal in the downstream airbag (2) by the second pressure sensor (5), according to the pulse signal and the air pressure in the upstream airbag (1), or the pulse signal and the The relationship between the air pressures in the upstream balloon (1) determines the measured systolic or diastolic blood pressure.
A blood pressure measuring device according to claim 1, wherein:

In the step A), the downstream balloon (2) is pressurized to a pressure value between the systolic pressure and the diastolic pressure of the artery to be tested and the downstream balloon (2) is pressurized to the artery to be tested. A method of reducing the average blood pressure value by 10 mmHg and the average blood pressure value plus 20 mmHg is to detect in real time the air pressure signal carried in the downstream airbag (2) during the pressurization of the downstream airbag (2) a pulse signal, when the amplitude of the pulse signal increases from zero to a maximum, then begins to decrease, stopping the pressurization; and pressurizing the downstream air bag (2) to a pressure value such that the downstream air bag is at the pressure value (2) The method of detecting a pulse signal amplitude greater than a given value is to detect a pulse signal carried by the air pressure signal in the downstream airbag (2) in real time during the pressurization of the downstream airbag (2) Stopping the pressure when the amplitude of the pulse signal increases from zero to greater than a given value;

In the step A), the pulse signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg, preferably 1.5 mmHg;

In the step B), the upstream airbag (1) is pressurized to a pressure value higher than the measured systolic blood pressure, in the process of pressurizing the upstream airbag (1), in real time. Monitoring the change of the amplitude of the pulse signal in the downstream airbag (2), when the amplitude of the pulse signal in the downstream airbag (2) changes from large to small as the air pressure of the upstream airbag (1) increases, and finally disappears, stop adding Pressure.
A blood pressure measuring device according to claim 1, wherein said downstream air bag (2) is pressurized to a pressure value such that the amplitude of the pulse signal detected in the downstream air bag (2) at the time of the pressure value The method of greater than a given value is to pressurize the downstream airbag (2), and after each end of the pressurization, detect the pulse signal in the downstream airbag (2) when the amplitude of the pulse signal is greater than a given value. At the same time, the pressurization is stopped, and the segmentation target of the downstream airbag (2) segmental press is: 80 mmHg, 120 mmHg, 160 mmHg, 200 mmHg.
A blood pressure measuring device according to claim 1, wherein in said step C), said first pressure sensor (3) measures said said airbag (1) during slow deflation a constantly changing air pressure in the upstream airbag (1), and measuring the occurrence time of the first pulse signal in the downstream airbag (2) by the second pressure sensor (5), according to the first pulse signal The air pressure in the upstream balloon (1) determines the systolic blood pressure to be measured.
A blood pressure measuring device according to claim 1, wherein in said step C), said first pressure sensor (3) measures said said airbag (1) during slow deflation a continuously changing air pressure in the upstream airbag (1), and measuring a pulse signal in the downstream airbag (2) by the second pressure sensor (5), according to which the pulse signal is changed from small to large and finally does not change. The air pressure in the upstream balloon (1) is determined to determine the diastolic blood pressure of the artery to be tested.
A blood pressure measuring device according to claim 1, characterized in that said upstream airbag is measured by said first pressure sensor (3) during said step C) during slow deflation of said upstream airbag (1) (1) a constantly changing air pressure, and measuring the amplitude and occurrence time of the first and second pulse signals in the downstream airbag (2) by the second pressure sensor (5), and in the The pressure value in the upstream balloon (1) at the time of one and the second pulse signal determines the blood systolic blood pressure of the artery to be measured.
A blood pressure measuring device according to claim 1, wherein in said step C) During the slow deflation of the upstream airbag (1), the constantly changing air pressure in the upstream airbag (1) is measured by the first pressure sensor (3) and measured by the second pressure sensor (5) The pulse signal in the downstream airbag (2) determines the blood diastolic blood pressure of the measured artery according to the air pressure value in the upstream airbag (1) when one of the following parameters of the pulse signal is changed from small to large: The product of the first half-wave time width, the second half-wave time width, the full-wave time width, the amplitude, and the amplitude of the pulse signal and the arbitrary time width described above.
A pulse signal detecting method for detecting a relationship between a barometric pressure and a pulse signal and a mutual relationship in a cuff bound to a measured limb, wherein the pulse signal detecting method comprises the following steps:

(1) Binding an upstream airbag (1) and a downstream airbag (2) to a measured limb, the upstream airbag (1) and the downstream airbag (2) being in the same cuff or in two Connected in different cuffs or in two different cuffs that are not connected;

(2) separately or simultaneously contacting the first pressure sensor (3) and the second pressure sensor (5) with one or both of the upstream air bag (1) and the downstream air bag (2);

(3) pressurizing the downstream balloon (2) to a pressure value between the measured arterial systolic pressure and diastolic pressure, or a pressure between the average blood pressure value of the measured artery minus 10 mmHg and the average blood pressure value plus 20 mmHg a value, or a pressure value, such that the amplitude of the pulse signal detected in the downstream air bag (2) at this pressure value is greater than a given value;

(4) pressurizing the upstream balloon (1) to a pressure value higher than the systolic blood pressure of the artery to be tested;

(5) slowly deflated the upstream airbag (1), and during the slow deflation of the upstream airbag (1), the changing air pressure in the upstream airbag (1) is measured by the first pressure sensor (3), and Measuring a pulse signal in the downstream airbag (2) by the second pressure sensor (5) to measure a relationship between a time or amplitude parameter of the pulse signal and a pressure value in the upstream airbag (1) .
A pulse signal detecting method according to claim 8, wherein:

In the step (3), a method of pressurizing the downstream airbag (2) to a pressure value between a systolic pressure and a diastolic pressure of the artery to be tested, and pressurizing the downstream airbag (2) to be A method of measuring a mean value of an arterial blood pressure minus 10 mmHg and an average blood pressure value plus 20 mmHg is to detect the air pressure in the downstream air bag (2) in real time during the pressurization of the downstream air bag (2) a pulse signal carried by the signal, when the amplitude of the pulse signal increases from zero to a maximum, and then begins to fall, stopping the pressurization; Pressing the downstream airbag (2) to a pressure value such that the amplitude of the pulse signal detected in the downstream airbag (2) at this pressure value is greater than a given value is During the pressurization of the downstream airbag (2), the pulse signal carried by the air pressure signal in the downstream airbag (2) is detected in real time, and when the amplitude of the pulse signal increases from zero to greater than a given value, the pressurization is stopped;

In the step (4), the method of pressurizing the upstream balloon (1) to a pressure higher than the measured systolic blood pressure is to monitor in real time during the pressurization of the upstream balloon (1). a change in the amplitude of the pulse signal in the downstream airbag (2), when the amplitude of the pulse signal in the downstream airbag (2) changes from large to small as the air pressure of the upstream airbag (1) increases, and finally disappears, the pressurization is stopped. The pulse signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg, preferably 1.5 mmHg.
A pulse signal detecting method according to claim 8, wherein said downstream air bag (2) is pressurized to a pressure value which is detected in said downstream air bag (2) at the time of said pressure value The pulse signal amplitude is greater than the given value by compressing the downstream airbag (2) and detecting the pulse signal in the downstream airbag (2) after each segment of pressurization is completed. When the pulse signal amplitude is greater than the given value, the pressurization is stopped, and the segment targets of the downstream airbag (2) segmental press are 80 mmHg, 120 mmHg, 160 mmHg, and 200 mmHg.
A pulse signal detecting method according to claim 8, characterized in that during the slow deflation of the upstream airbag (1), the upstream airbag (1) is continuously measured by the first pressure sensor (3) a varying air pressure, and measuring a pulse signal in the downstream airbag (2) by the second pressure sensor (5), thereby measuring that the pulse signal changes from small to large and finally does not change when in the upstream airbag (1) Air pressure.
A pulse signal detecting method according to claim 8, characterized in that during the slow deflation of the upstream airbag (1), the upstream airbag (1) is continuously measured by the first pressure sensor (3) a varying air pressure, and measuring a pulse signal in the downstream airbag (2) by the second pressure sensor (5), increasing from small to large according to one of the following parameters of the pulse signal The air pressure value in the airbag (1) determines the blood diastolic pressure of the measured artery: the product width of the first half-wave time width, the second half-wave time width, the full-wave time width, the amplitude, and the amplitude of the pulse signal and the arbitrary time width described above.
A pulse signal detecting method for detecting a relationship between a barometric pressure and a pulse signal and a mutual relationship in a cuff bound to a measured limb, wherein the pulse signal detecting method comprises The following steps:

(1) Binding the upstream airbag (1) and the downstream airbag (2) to a measured limb, the upstream airbag (1) and the downstream airbag (2) being connected in the same cuff or in two phases Within different cuffs or in two different cuffs that are not connected;

(2) separately or simultaneously contacting the first pressure sensor (3) and the second pressure sensor (5) with one or both of the upstream air bag (1) and the downstream air bag (2);

(3) pressurizing the downstream balloon (2) to a pressure value between the measured arterial systolic pressure and diastolic pressure, or a pressure between the average blood pressure value of the measured artery minus 10 mmHg and the average blood pressure value plus 20 mmHg a value, or a pressure value, such that the amplitude of the pulse signal detected in the downstream airbag (2) at this pressure value is greater than a given value;

(4) pressurizing the upstream balloon (1) to a pressure value higher than the systolic blood pressure of the artery to be tested;

(5) slowly deflated the upstream airbag (1), and during the slow deflation of the upstream airbag (1), the changing air pressure in the upstream airbag (1) is measured by the first pressure sensor (3) And simultaneously measuring the pulse signal in the downstream airbag (2) by the second pressure sensor (5), thereby measuring the air pressure value in the upstream airbag (1) when the pulse signal occurs.
A pulse signal detecting method according to claim 11, wherein:

In the step (3), a method of pressurizing the downstream airbag (2) to a pressure value between a systolic pressure and a diastolic pressure of the artery to be tested, and pressurizing the downstream airbag (2) to be A method of measuring a mean value of an arterial blood pressure minus 10 mmHg and an average blood pressure value plus 20 mmHg is to detect the air pressure in the downstream air bag (2) in real time during the pressurization of the downstream air bag (2) a pulse signal carried by the signal, when the amplitude of the pulse signal increases from zero to a maximum, and then begins to decrease, stopping the pressurization; and pressurizing the downstream air bag (2) to a pressure value so that the pressure value is at the pressure value The method for detecting a pulse signal amplitude greater than a given value in the downstream airbag (2) is to detect the downstream airbag (2) in real time during the pressurization of the downstream airbag (2) The pulse signal carried by the air pressure signal stops the pressurization when the amplitude of the pulse signal increases from zero to a given value;

In the step (4), the upstream airbag (1) is pressurized to a pressure value higher than the measured systolic blood pressure of the artery, in the process of pressurizing the upstream airbag (1), Real-time monitoring of the change in the amplitude of the pulse signal in the downstream airbag (2), when the amplitude of the pulse signal in the airbag (2) changes from large to small as the air pressure of the upstream airbag (1) increases, and finally disappears When the pressure is stopped, the vein The beat signal amplitude is given a value between 1.3 mmHg and 1.8 mmHg.
A pulse signal detecting method according to claim 11, wherein said downstream air bag (2) is pressurized to a pressure value which is detected in said downstream air bag (2) at the time of said pressure value The pulse signal amplitude is greater than a predetermined value by compressing the downstream airbag (2) and detecting the pulse signal in the downstream airbag (2) after each segment of pressurization is completed. When the pulse signal amplitude is greater than the given value, the pressurization is stopped, and the segment targets of the downstream airbag (2) segmental press are 80 mmHg, 120 mmHg, 160 mmHg, and 200 mmHg.
A pulse signal detecting method according to claim 11, characterized in that during the slow deflation of the upstream airbag (1), the upstream airbag (1) is continuously measured by the first pressure sensor (3) a varying air pressure, and measuring the occurrence time of the first pulse signal in the downstream airbag (2) by the second pressure sensor (5), thereby measuring the upstream airbag when the first pulse signal occurs The air pressure in (1).
A pulse signal detecting method according to claim 11, characterized in that during the slow deflation of the upstream airbag (1), the upstream airbag (1) is continuously measured by the first pressure sensor (3) Varying air pressure, and measuring the amplitude and time of occurrence of the first and second pulse signals in the downstream air bag (2) by the second pressure sensor (5), thereby measuring the occurrence of the first pulse signal The air pressure in the upstream balloon (1) during a pulse cycle before this time.