CN103720465A - Blood pressure measurement device and double-air-bag pulse signal detecting method - Google Patents
Blood pressure measurement device and double-air-bag pulse signal detecting method Download PDFInfo
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Abstract
The invention discloses a blood pressure measurement device which comprises an oversleeve and a main machine connected with the oversleeve. An upstream air bag and a downstream air bag are placed on the upstream and the downstream of flowing of limb artery blood to be measured respectively. The downstream air bag is used for detecting the changing information of pulse signals, changing of blood flowing pulses generated by changing of pressure of the upstream air bag is sensed in real time, a microprocessor controls air pumps and air release valves and processes one or two of a first pressure sensor and a second pressure sensor, and the pressure value, the pulse signals or the pressure value and the pulse signals in one or two of the upstream air bag and the downstream air bag are detected respectively or at the same time. According to the blood pressure measurement device, the two air inflation air bags are bound on a limb for pressurization, pressure and the pulse signals are effectively detected in the upstream air bag and the downstream air bag, accordingly, blood pressure is measured accurately and reliably, and measuring results are stable.
Description
Technical field
The invention belongs to technical field of medical instruments, concrete relate to a kind of blood pressure measuring device that detects the method for arterial blood pulse signal and use the method, especially a kind of by two inflatable bladders the upstream and downstream of a limbs position blood flow simultaneously detected pressures and pulse signal method and take the method as basic blood pressure measuring device.
Background technology
One of method that blood pressure measurement is the most frequently used is to adopt a kind of cuff with an inflatable bladders, by pressurization, first human body limb artery blood flow is blocked, then slowly decompression, in decompression process, the Ke Shi sound producing when detecting blood flow by blocking-up district, or the information such as the strong and weak changing value of the pulse wave signal that produces in cuff of arterial pressure, determine systolic pressure and the diastolic pressure of arterial blood.China Patent No. CN201010247968.6, the patent documentation that title is " a kind of Woundless blood pressure measuring device and measuring method thereof " has been introduced a kind of use pulse wave probe and has been detected cuff downstream arterial pulse signal, thereby determines the sphygomanometer of systolic pressure and diastolic pressure.This pulse wave probe detects cuff downstream arterial pulse signal by pressure inductor or photoelectric sensor.China Patent No. is CN201220159276.0, the patent documentation that title is " a kind of pair of air bag bandage " has been introduced the two air bag oversleeves of a kind of binary articulated, described cuff has upstream air bag bandage body and downstream air bag bandage body, and described upstream air bag bandage body is that 30cm is fixedly connected with interior with described downstream air bag bandage body according to artery blood flow direction spacing.Described downstream air bag bandage body is for detection of tested limbs downstream blood liquid flow pulses, and determines the pressure of tested limb artery blood with this.
Prior art not yet solves upstream and downstream air bag bandage and should pressurize and be pressurized to which kind of degree of pressure by which kind of mode, the blood flow pulse that can be used for measuring tested limbs blood pressure could in upstream and downstream air bag bandage, be detected most effectively, thereby accurately, the problem of Measure blood pressure reliably.
Summary of the invention
In order to address the above problem, the invention provides a kind of accurate, reliable sphygomanometer, particularly provide a kind of two inflatable bladders to colligation on limbs to carry out pneumatic compression, to effectively detect the method for pulse signal wherein, and the device that uses the method Measurement accuracy sphygomanometer.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
A kind of blood pressure measuring device of the present invention, measuring device is for measuring arteriotony by measured's limbs position, and measuring device comprises
Two aerating gasbag upstream air bags and downstream air bag; Upstream air bag with downstream air bag in same cuff or in two different cufves that are connected or in two different cufves that are not connected, cuff is used for being bundled in tested limbs;
Two with in upstream air bag and downstream air bag one or two respectively or pressure transducer the first pressure transducer and second pressure transducer of being connected simultaneously;
A microprocessor, microprocessor is carried out the blood pressure measurement process comprising the following steps:
A) downstream gasbag pressurizes is arrived to a force value between tested systolic arterial pressure and diastolic pressure, or the mean blood pressure value of tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg, or a force value, makes the pulse signal amplitude detecting in the air bag of downstream when this force value be greater than a set-point;
B) upstream air bag is slowly pressurizeed, in the slow pressure process of upstream air bag, by the first pressure transducer, measure the air pressure constantly changing in the air bag of upstream, and measure the pulse signal in the air bag of downstream by the second pressure transducer, according to the relation between the air pressure in described pulse signal and upstream air bag, determine tested systolic arterial pressure.
Further improvement of the present invention is: in steps A) in, by downstream gasbag pressurizes to force value between the systolic pressure of tested tremulous pulse and diastolic pressure with downstream gasbag pressurizes is subtracted to the method that 10mmHg and average pressure value add a force value between 20mmHg to the mean blood pressure value of tested tremulous pulse is in to the process of downstream gasbag pressurizes, detect in real time the pulse signal in the air bag of downstream, when pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization; With by downstream gasbag pressurizes to force value, so that the pulse signal amplitude detecting in the air bag of downstream when this force value is greater than the method for a set-point, be, by in to the process of downstream gasbag pressurizes, detect in real time the entrained pulse signal of air pressure signal in the air bag of downstream, when pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization;
In steps A) in, pulse signal amplitude set-point be 1.3mmHg to a value between 1.8mmHg, be preferably 1.5mmHg.
Further improvement of the present invention is: by downstream gasbag pressurizes to force value, the method that the pulse signal amplitude that makes to detect in the air bag of downstream when this force value is greater than a set-point is, to downstream air bag segmentation pressurization, and after each section of pressurization finishes, detect the pulse signal in the air bag of downstream, when pulse signal amplitude is greater than set-point, stop pressurization, to the segmented objects of downstream air bag segmentation pressurization, be: 80mmHg, 120mmHg, 160mmHg, and 200mmHg.
Further improvement of the present invention is: at step B) in, in the process of slowly pressurizeing at upstream air bag, by the first pressure transducer, measure the air pressure constantly changing in the air bag of described upstream, and measure the pulse signal in the air bag of described downstream by described the second pressure transducer simultaneously, according to described pulse signal from big to small, air pressure described in while finally disappearing in the air bag of upstream, determines tested systolic arterial pressure.
Further improvement of the present invention is: at step B) in the slow pressure process of upstream air bag, by the first pressure transducer, measure the air pressure constantly changing in the air bag of upstream, and measure the pulse signal in the air bag of described downstream by described the second pressure transducer simultaneously, according to described pulse signal from big to small, amplitude and the time of origin of last and penultimate pulse signal while finally disappearing, with the atmospheric pressure value in the air bag of described time of origin upstream, determine tested arterial blood systolic pressure.
A pair air bag pulse signal detection method, the method is for detection of the air pressure in the cuff being bundled on tested limbs and pulse signal and interrelationship, and two air bag pulse signal detection methods comprise the following steps:
(1) upstream air bag and downstream air bag are bundled on tested limbs, upstream air bag with downstream air bag in same cuff or in two different cufves that are connected or in two different cufves that are not connected, upstream air bag and downstream air bag lay respectively at the upstream and downstream of tested limb artery blood flow;
(2) the first pressure transducer and the second pressure transducer are joined respectively or simultaneously by one or two in gas UNICOM parts and upstream air bag and downstream air bag;
(3) downstream gasbag pressurizes is arrived to a force value between tested systolic arterial pressure and diastolic pressure, or the mean blood pressure value of tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg, or a force value, makes the pulse signal amplitude detecting in the air bag of downstream when this force value be greater than a set-point;
(4) upstream air bag is slowly pressurizeed, in the slow pressure process of upstream air bag, by the first pressure transducer, measure the air pressure constantly changing in the air bag of upstream, and measure the pulse signal in the air bag of downstream by the second pressure transducer, thereby measure the atmospheric pressure value in the air bag of upstream when pulse signal occurs simultaneously.
Further improvement of the present invention is:
In step (3), by downstream gasbag pressurizes to the systolic pressure of tested tremulous pulse and the method for a force value between diastolic pressure with downstream gasbag pressurizes is subtracted to the method that 10mmHg and average pressure value add a force value between 20mmHg to the mean blood pressure value of tested tremulous pulse be, in to the process of downstream gasbag pressurizes, detect in real time the entrained pulse signal of air pressure signal in the air bag of downstream, when pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, with by downstream gasbag pressurizes to force value, so that the pulse signal amplitude detecting in the air bag of downstream when this force value is greater than the method for a set-point, be, by in to the process of downstream gasbag pressurizes, detect in real time the entrained pulse signal of air pressure signal in the air bag of downstream, when pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization,
In step (3), pulse signal amplitude set-point is a value between 1.3mmHg-1.8 mmHg, is preferably 1.5mmHg.
By downstream gasbag pressurizes to force value, the method that the pulse signal amplitude that makes to detect in the air bag of downstream when this force value is greater than a set-point is, to downstream air bag segmentation pressurization, and after each section of pressurization finishes, detect the pulse signal that in the air bag of downstream, air pressure signal carries, when pulse signal amplitude is greater than set-point, stop pressurization, the segmented objects of downstream air bag segmentation pressurization is, 80mmHg, 120mmHg, 160mmHg and 200mmHg.
Further improvement of the present invention is: in the slow pressure process of upstream air bag, by the first pressure transducer, measure the air pressure constantly changing in the air bag of upstream, and measure the pulse signal in the air bag of downstream by the second pressure transducer, thereby measure pulse signal from big to small, the air pressure while finally disappearing in the air bag of upstream.
Further improvement of the present invention is: in the slow pressure process of upstream air bag, by the first pressure transducer, measure the air pressure constantly changing in the air bag of upstream, and measure the pulse signal in the air bag of described downstream by the second pressure transducer, according to pulse signal from big to small, last and penultimate pulse signal time of origin while finally disappearing, measure when described generation described in air pressure in the air bag of upstream.
The invention has the beneficial effects as follows: the device of Measure blood pressure provided by the invention is that two inflatable bladders of colligation pressurize on limbs, effectively detect pressure and pulse signal wherein, thereby accurately, Measure blood pressure, and measurement result is reliably stable.
Accompanying drawing explanation
Fig. 1 is the plane outspread drawing of the two fan-shaped oversleeves of air bag of the present invention.
Fig. 2 is that the two fan-shaped oversleeves of air bag of the present invention are for the use schematic diagram of hands forearm.
Fig. 3 is blood pressure measuring device connection diagram of the present invention.
Fig. 4 is blood pressure measuring device connection diagram of the present invention.
Fig. 5 is blood pressure measuring device connection diagram of the present invention.
Fig. 6 is the pulse signal sequential chart that pressurization of the present invention is measured systolic pressure and diastolic pressure.
Fig. 7 is the enlarged drawing of 7A in Fig. 6 of the present invention.
Wherein: 1-upstream air bag, 2-downstream air bag, 3-the first pressure transducer, 4-main frame, 5-the second pressure transducer, 6-air pump, 7-gas bleeder valve, 8-oversleeve, 9-upstream trachea, 10-downstream trachea.
The specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and Examples, the present invention is described in further detail, this embodiment, only for explaining the present invention, does not form and limits protection scope of the present invention.
As shown in Fig. 1-7, the present invention is a kind of blood pressure measuring device, and described blood pressure measuring device comprises two fan-shaped oversleeves 8 of air bag, and the fan-shaped oversleeve of two air bags can be also two common oversleeves, replaces respectively the effect of upstream air bag 1 and downstream air bag 2.
Embodiment mono-, use pressurization are measured pulse signal method and systolic pressure measuring device
The present invention is a kind of blood pressure measuring device, described blood pressure measuring device comprises oversleeve 8 and the main frame 4 being connected with described oversleeve 8, described oversleeve 8 is two fan-shaped oversleeves of air bag, the described pair of fan-shaped oversleeve of air bag is the two tracheas of band and upstream air bag 1 and the cuff on tested limbs that is bundled in of two gas cells of downstream air bag 2, described upstream air bag 1 and described downstream air bag 2 lay respectively at the upstream and downstream of tested limb artery blood flow, it is mobile that after binding, described upstream air bag 1 is fixed on wrist pulse upstream blocking-up measured elbow arterial blood, and be connected with the upstream air bag interface on described main frame 4, described downstream air bag 2 is fixed on the downstream portion of arterial blood flow direction and surveys wrist beat pulse and be connected with the downstream air bag interface on described main frame 4, described downstream air bag 2 is for surveying the change information of pulse signal, the variation of the blood flow pulse that real-time sensing is produced by the pressure variation of described upstream air bag 1, described main frame 4 comprises a microprocessor and the interpersonal interactive interface that comprises keyboard and display being connected with described microprocessor, described main frame 4 also comprises air pump 6, gas bleeder valve 7, described main frame 4 also comprises the first pressure transducer 3 and the second pressure transducer 5, described the first pressure transducer 3 and the second pressure transducer 5 join respectively or simultaneously by one or two of gas UNICOM parts and described upstream air bag 1 and described downstream air bag 2, described air pump 6 is that at least one is for the air pump 6 of one or two inflation of described upstream air bag 1 and described downstream air bag 2, described gas bleeder valve 7 be for to described upstream air bag 1 and described downstream air bag 2 one or two at a slow speed or the gas bleeder valve 7 of quick air releasing, described microprocessor is controlled described air pump 6, gas bleeder valve 7 and process by one or two in the first pressure transducer 3 and the second pressure transducer 5 and detect respectively or simultaneously the force value in one or two in described upstream air bag 1 and described downstream air bag 2, pulse signal, or force value and pulse signal.
In described microprocessor, be provided with and control and data processor, described control and handling procedure are carried out the blood pressure measurement process comprising the following steps:
A) described downstream air bag 2 is pressurized to a force value between tested systolic arterial pressure and diastolic pressure, or the mean blood pressure value of tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg, or a force value, makes the pulse signal amplitude detecting in described downstream air bag 2 when this force value be greater than a set-point;
B) upstream air bag 1 is slowly pressurizeed, in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the relation between the air pressure in described pulse signal and described upstream air bag 1, determine tested systolic arterial pressure.
Scheme one: as shown in Fig. 3 and 6-7, use pressurization to detect two air bag pulse signals and systolic pressure, comprise the steps:
1) by a two fan-shaped cuff of air bag, or the non-fan-shaped cuff of two air bags, or two joining cufves, or two not joining cufves are bound on tested limbs, wherein upstream air bag 1 and downstream air bag 2 lay respectively at the upstream and downstream of limb artery blood flow, and upstream air bag 1 is connected with downstream air bag interface with the upstream air bag interface on main frame 4 with downstream trachea 10 by upstream trachea 9 respectively with downstream air bag 2;
2) press the start key of main frame 4 keyboards, the second gas bleeder valve cuts out, air bag 2 inflations downstream of the second air pump 2, and the air pressure of downstream air bag 2 slowly increases from zero;
3) this step has 4 kinds of embodiments, respectively as step 3-1), 3-2), 3-3) and 3-4):
3-1) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, now downstream air bag 2 is pressurized to a force value between tested systolic arterial pressure and diastolic pressure;
3-2) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, the mean blood pressure value that now downstream air bag 2 is pressurized to tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg;
3-3) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
3-4) to the 2 segmentation pressurizations of downstream air bag, and after each section of pressurization finishes, detect the pulse signal in downstream air bag 2, when described pulse signal amplitude is greater than set-point, stop pressurization, the described segmented objects to the 2 segmentation pressurizations of downstream air bag is 80mmHg, 120mmHg, 160mmHg, 200mmHg, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
4) the first gas bleeder valve cuts out, and the first air pump upstream air bag 1 is slowly inflated, and air bag 1 pressure in upstream slowly increases from zero;
5) continue upstream air bag 1 slowly to pressurize, in the process that upstream air bag 1 is slowly pressurizeed, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the air pressure in described pulse signal and upstream air bag 1, determine tested systolic arterial pressure, the method for described definite tested systolic arterial pressure has 2 kinds, respectively as step 5-1) and 5-2):
In the process of 5-1) slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal detecting in downstream air bag 2 by the second pressure transducer 5, according at described pulse signal from big to small, air pressure while finally disappearing in upstream air bag 1, determine tested systolic arterial pressure, for example, pulse signal in the downstream air bag 2 that measurement detects from big to small, the generation of the peak value of last pulse signal while finally disappearing constantly, with the atmospheric pressure value of measurement at the generation moment of the peak value of described last pulse signal upstream air bag 1, the atmospheric pressure value of described upstream air bag 1 is tested systolic arterial pressure, or measurement is at the atmospheric pressure value of the generation moment of the peak value of described last pulse signal upstream air bag 1, meansigma methods with the atmospheric pressure value of upstream air bag 1 in the generation of peak value at described last pulse signal former and later two pulse cycles constantly, described meansigma methods is tested systolic arterial pressure,
In the process of 5-2) slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according at described pulse signal from big to small, amplitude and the time of origin of last and penultimate pulse signal while finally disappearing, with the atmospheric pressure value in described time of origin upstream air bag 1, determine tested arterial blood systolic pressure.For example, in the downstream air bag 2 that measurement detects, pulse signal from big to small, last and the amplitude A 41 of penultimate pulse signal and time of origin t41 and the t40 of A40 and peak value while finally disappearing, with two atmospheric pressure value P41 and the P40 in the time of origin t41 measuring at the peak value of described last and penultimate pulse signal and t40 upstream air bag 1, tested systolic arterial pressure is (P40-(P40-P41) * A40/ (A40-A41)).
6) open the first gas bleeder valve and the second gas bleeder valve, lose heart to upstream air bag 1 and downstream air bag 2.
Scheme two: as shown in Figure 4, use pressurization to detect two air bag pulse signals and systolic pressure, comprise the steps:
1) by a two fan-shaped cuff of air bag, or the non-fan-shaped cuff of two air bags, or two joining cufves, or two not joining cufves are bound on tested limbs, wherein upstream air bag 1 and downstream air bag 2 lay respectively at the upstream and downstream of limb artery blood flow, and upstream air bag 1 is connected with downstream air bag interface with the upstream air bag interface on main frame 4 with downstream trachea 10 by upstream trachea 9 respectively with downstream air bag 2;
2) press the start key of main frame 4 keyboards, the first gas bleeder valve cuts out, and the first switch valve cuts out, and second switch valve is opened, air bag 2 inflations downstream of the first air pump, and the air pressure of downstream air bag 2 slowly increases from zero;
3) this step has 4 kinds of embodiments, respectively as step 3-1), 3-2), 3-3) and 3-4):
3-1) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, now downstream air bag 2 is pressurized to a force value between tested systolic arterial pressure and diastolic pressure;
3-2) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, the mean blood pressure value that now downstream air bag 2 is pressurized to tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg;
3-3) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
3-4) to the 2 segmentation pressurizations of downstream air bag, and after each section of pressurization finishes, detect the pulse signal in downstream air bag 2, when described pulse signal amplitude is greater than set-point, stop pressurization, the described segmented objects to the 2 segmentation pressurizations of downstream air bag is 80mmHg, 120mmHg, 160mmHg, 200mmHg, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
4) the first gas bleeder valve cuts out, and second switch valve cuts out, and the first switch valve is opened, and the first air pump upstream air bag 1 is slowly inflated, and air bag 1 pressure in upstream slowly increases from zero;
5) continue upstream air bag 1 slowly to pressurize, in the process that upstream air bag 1 is slowly pressurizeed, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the air pressure in described pulse signal and upstream air bag 1, determine tested systolic arterial pressure, the method for described definite tested systolic arterial pressure has 2 kinds, respectively as step 5-1) and 5-2):
In the process of 5-1) slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal detecting in downstream air bag 2 by the second pressure transducer 5, according at described pulse signal from big to small, air pressure while finally disappearing in upstream air bag 1, determine tested systolic arterial pressure, for example, pulse signal in the downstream air bag 2 that measurement detects from big to small, the generation of the peak value of last pulse signal while finally disappearing constantly, with the atmospheric pressure value of measurement at the generation moment of the peak value of described last pulse signal upstream air bag 1, the atmospheric pressure value of described upstream air bag 1 is tested systolic arterial pressure, or the atmospheric pressure value of measurement upstream air bag 1 when the generation of the peak value of described last pulse signal, during with the generation of peak value at described last pulse signal, in former and later two pulse cycles, the atmospheric pressure value of upstream air bag 1 obtains meansigma methods, described meansigma methods is tested systolic arterial pressure,
In the process of 5-2) slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according at described pulse signal from big to small, amplitude and the time of origin of last and penultimate pulse signal while finally disappearing, with the atmospheric pressure value in described time of origin upstream air bag 1, determine tested arterial blood systolic pressure.For example, in the downstream air bag 2 that measurement detects, pulse signal from big to small, last and the amplitude A 41 of penultimate pulse signal and time of origin t41 and the t40 of A40 and peak value while finally disappearing, with two atmospheric pressure value P41 and the P40 in the time of origin t41 measuring at the peak value of described last and penultimate pulse signal and t40 upstream air bag 1, tested systolic arterial pressure is (P40-(P40-P41) * A40/ (A40-A41)).
6) the first gas bleeder valve is opened, and the first switch valve is opened, and second switch valve is opened, and loses heart to upstream air bag 1 and downstream air bag 2.
Scheme three: as shown in Figure 5, pressurization is measured the two air bag pulse signals of systolic pressure and detected and blood pressure, comprises the following steps:
1) by a two fan-shaped cuff of air bag, or the non-fan-shaped cuff of two air bags, or two joining cufves, or two not joining cufves are bound on tested limbs, wherein upstream air bag 1 and downstream air bag 2 lay respectively at the upstream and downstream of limb artery blood flow, and upstream air bag 1 is connected with downstream air bag interface with the upstream air bag interface on main frame 4 with downstream trachea 10 by upstream trachea 9 respectively with downstream air bag 2;
2) press the start key of main frame 4 keyboards, gas bleeder valve cuts out, and the path of three-way air valve UNICOM downstream air bag 2 and air pump is also blocked the path of upstream air bag 1, air pump air bag 2 inflations downstream, and the air pressure of downstream air bag 2 slowly increases from zero;
3) this step has 4 kinds of embodiments, respectively as step 3-1), 3-2), 3-3) and 3-4):
3-1) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, now downstream air bag 2 is pressurized to a force value between tested systolic arterial pressure and diastolic pressure;
3-2) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, the mean blood pressure value that now downstream air bag 2 is pressurized to tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg;
3-3) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
3-4) to the 2 segmentation pressurizations of downstream air bag, and after each section of pressurization finishes, detect the pulse signal in downstream air bag 2, when described pulse signal amplitude is greater than set-point, stop pressurization, the described segmented objects to the 2 segmentation pressurizations of downstream air bag is 80mmHg, 120mmHg, 160mmHg, 200mmHg, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
4) gas bleeder valve cuts out, and the path of three-way air valve UNICOM upstream air bag 1 and air pump is also blocked the path of downstream air bag 2, and air pump upstream air bag 1 is slowly inflated, and air bag 1 pressure in upstream slowly increases from zero;
5) continue upstream air bag 1 slowly to pressurize, in the process that upstream air bag 1 is slowly pressurizeed, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the air pressure in described pulse signal and upstream air bag 1, determine tested systolic arterial pressure, the method for described definite tested systolic arterial pressure has 2 kinds, respectively as step 5-1) and 5-2):
In the process of 5-1) slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal detecting in downstream air bag 2 by the second pressure transducer 5, according at described pulse signal from big to small, air pressure while finally disappearing in upstream air bag 1, determine tested systolic arterial pressure, for example, pulse signal in the downstream air bag 2 that measurement detects from big to small, the generation of the peak value of last pulse signal while finally disappearing constantly, with the atmospheric pressure value of measurement at the generation moment of the peak value of described last pulse signal upstream air bag 1, the atmospheric pressure value of described upstream air bag 1 is tested systolic arterial pressure, or measurement is at the atmospheric pressure value of the generation moment of the peak value of described last pulse signal upstream air bag 1, meansigma methods with the atmospheric pressure value of upstream air bag 1 in the generation of peak value at described last pulse signal former and later two pulse cycles constantly, described meansigma methods is tested systolic arterial pressure,
In the process of 5-2) slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according at described pulse signal from big to small, amplitude and the time of origin of last and penultimate pulse signal while finally disappearing, with the atmospheric pressure value in described time of origin upstream air bag 1, determine tested arterial blood systolic pressure.For example, in the downstream air bag 2 that measurement detects, pulse signal from big to small, last and the amplitude A 41 of penultimate pulse signal and time of origin t41 and the t40 of A40 and peak value while finally disappearing, with two atmospheric pressure value P41 and the P40 in the time of origin t41 measuring at the peak value of described last and penultimate pulse signal and t40 upstream air bag 1, tested systolic arterial pressure is (P40-(P40-P41) * A40/ (A40-A41)).
6) gas bleeder valve is opened, the path of three-way air valve UNICOM upstream air bag 1 and air pump is also blocked the path of downstream air bag 2, lose heart to upstream air bag 1, the path of Zai Jiang three-way air valve UNICOM downstream air bag 2 and air pump is also blocked the path of upstream air bag 1, loses heart to downstream air bag 2.
Embodiment bis-, pressurization detect two air bag pulse signals and diastolic pressure
Device of the present invention can also detect two air bag pulse signals and measure diastolic pressure for pressurization,
Scheme one: as shown in Figure 3, detection method comprises the steps:
1) by a two fan-shaped cuff of air bag, or the non-fan-shaped cuff of two air bags, two joining cufves, or two not joining cufves bind on tested limbs, wherein upstream air bag 1 and downstream air bag 2 lay respectively at the upstream and downstream of limb artery blood flow.And upstream air bag 1 is connected with downstream air bag interface with the upstream air bag interface on main frame 4 with downstream trachea 10 by upstream trachea 9 respectively with downstream air bag 2;
2) press the start key of main frame 4 keyboards, the second gas bleeder valve cuts out, air bag 2 inflations downstream of the second air pump 2, and the air pressure of downstream air bag 2 slowly increases from zero;
3) this step has 4 kinds of embodiments, respectively as step 3-1), 3-2), 3-3) and 3-4):
3-1) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, now downstream air bag 2 is pressurized to a force value between tested systolic arterial pressure and diastolic pressure;
3-2) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, the mean blood pressure value that now downstream air bag 2 is pressurized to tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg;
3-3) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
3-4) to the 2 segmentation pressurizations of downstream air bag, and after each section of pressurization finishes, detect the pulse signal in downstream air bag 2, when described pulse signal amplitude is greater than set-point, stop pressurization, the described segmented objects to the 2 segmentation pressurizations of downstream air bag is 80mmHg, 120mmHg, 160mmHg, 200mmHg, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
4) the first gas bleeder valve cuts out, and the first air pump upstream air bag 1 is slowly inflated, and air bag 1 pressure in upstream slowly increases from zero;
5) in the process of slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the air pressure in described pulse signal and upstream air bag 1, determine tested auterial diastole pressure, the described method of determining that tested auterial diastole is pressed has 6 kinds, respectively as step 5-1), 5-2), 5-3), 5-4), 5-5) and 5-6):
5-1) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the amplitude A 30 of p34 and p35, A31, A32, A33, A34 and A35, obtain A30=A31=A32>A33>A34GreatT.Gr eaT.GTA35, measurement occurs constantly at the maximum and constant pulse signal of last amplitude of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-2) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the time width of described pulse signal all-wave by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the all-wave time width d20 of p34 and p35, d21, d22, d23, d24 and d25, obtain d20=d21=d22>d23>d24>d2 5, measurement occurs constantly at the maximum and constant pulse signal of last all-wave time width of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-3) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the front half-wave time width of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the front half-wave time width d26 of p34 and p35, d27, d28, d29, d30 and d31, obtain d26=d27=d28>d29>d30GreatT.Gr eaT.GTd31, measurement described pulse signal before last the maximum and constant pulse signal of half-wave time width occur constantly, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-4) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the rear half-wave time width of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the lower gasbag 2 detecting, p31, p32, p33, the rear half-wave time width d32 of p34 and p35, d33, d34, d35, d36 and d37, obtain d32=d33=d34>d35>d36GreatT.Gr eaT.GTd37, measurement occurs constantly at the maximum and constant pulse signal of last rear half-wave time width of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-5) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the area of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the area S30 of p34 and p35, S31, S32, S33, S34 and S35, obtain S30=S31=S32>S33>S34GreatT.Gr eaT.GTS35, measurement occurs constantly at the maximum and constant pulse signal of last area of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-6) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the area of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the amplitude A 30 of p34 and p35, A31, A32, A33, A34 and A35, all-wave time width d20, d21, d22, d23, d24 and d25, front half-wave time width d26, d27, d28, d29, d30 and d31, rear half-wave time width d32, d33, d34, d35, d36 and d37, pulse signal amplitude in downstream air bag 2 and the product of above-mentioned random time width, be A30* d20=A31*d21=A32*d22>A33*d23> A34*d24>A35*d25, or A0*d26=A1* d27=A2*d28>A3* d29>A4*d30>A5* d31, or A30*d32=A31* d33=A32*d34>A33*d35>A34*d36G reatT.GreaT.GTA35*d37, measurement occurs constantly at first maximum and constant pulse signal of the product of described pulse signal amplitude and above-mentioned random time width, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
6) open the first gas bleeder valve and the second gas bleeder valve, lose heart to upstream air bag 1 and downstream air bag 2.
Scheme two: pressurization detects the two air bag pulse signals of diastolic pressure and detects and blood pressure
Device of the present invention can also detect the two air bag pulse signals of diastolic pressure for pressurization and detect and Measure blood pressure,
As shown in Figure 4, detection method comprises the steps:
1) by a two fan-shaped cuff of air bag, or the non-fan-shaped cuff of two air bags, two joining cufves, or two not joining cufves bind on tested limbs, wherein upstream air bag 1 and downstream air bag 2 lay respectively at the upstream and downstream of limb artery blood flow.And upstream air bag 1 is connected with downstream air bag interface with the upstream air bag interface on main frame 4 with downstream trachea 10 by upstream trachea 9 respectively with downstream air bag 2;
2) press the start key of main frame 4 keyboards, the first gas bleeder valve cuts out, and the first switch valve cuts out, and second switch valve is opened, air bag 2 inflations downstream of the first air pump, and the air pressure of downstream air bag 2 slowly increases from zero;
3) this step has 4 kinds of embodiments, respectively as step 3-1), 3-2), 3-3) and 3-4):
3-1) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, now downstream air bag 2 is pressurized to a force value between tested systolic arterial pressure and diastolic pressure;
3-2) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, the mean blood pressure value that now downstream air bag 2 is pressurized to tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg;
3-3) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
3-4) to the 2 segmentation pressurizations of downstream air bag, and after each section of pressurization finishes, detect the pulse signal in downstream air bag 2, when described pulse signal amplitude is greater than set-point, stop pressurization, the described segmented objects to the 2 segmentation pressurizations of downstream air bag is 80mmHg, 120mmHg, 160mmHg, 200mmHg, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
4) the first gas bleeder valve cuts out, and second switch valve cuts out, and the first switch valve is opened, and the first air pump upstream air bag 1 is slowly inflated, and air bag 1 pressure in upstream slowly increases from zero;
5) in the process of slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the air pressure in described pulse signal and upstream air bag 1, determine tested auterial diastole pressure, the described method of determining that tested auterial diastole is pressed has 6 kinds, respectively as step 5-1), 5-2), 5-3), 5-4), 5-5) and 5-6):
5-1) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the amplitude A 30 of p34 and p35, A31, A32, A33, A34 and A35, obtain A30=A31=A32>A33>A34GreatT.Gr eaT.GTA35, measurement occurs constantly at the maximum and constant pulse signal of last amplitude of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-2) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the time width of described pulse signal all-wave by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the all-wave time width d20 of p34 and p35, d21, d22, d23, d24 and d25, obtain d20=d21=d22>d23>d24>d2 5, measurement occurs constantly at the maximum and constant pulse signal of last all-wave time width of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-3) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the front half-wave time width of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the front half-wave time width d26 of p34 and p35, d27, d28, d29, d30 and d31, obtain d26=d27=d28>d29>d30GreatT.Gr eaT.GTd31, measurement described pulse signal before last the maximum and constant pulse signal of half-wave time width occur constantly, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-4) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the rear half-wave time width of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the lower gasbag 2 detecting, p31, p32, p33, the rear half-wave time width d32 of p34 and p35, d33, d34, d35, d36 and d37, obtain d32=d33=d34>d35>d36GreatT.Gr eaT.GTd37, measurement occurs constantly at the maximum and constant pulse signal of last rear half-wave time width of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-5) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the area of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the area S30 of p34 and p35, S31, S32, S33, S34 and S35, obtain S30=S31=S32>S33>S34GreatT.Gr eaT.GTS35, measurement occurs constantly at the maximum and constant pulse signal of last area of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-6) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the area of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the amplitude A 30 of p34 and p35, A31, A32, A33, A34 and A35, all-wave time width d20, d21, d22, d23, d24 and d25, front half-wave time width d26, d27, d28, d29, d30 and d31, rear half-wave time width d32, d33, d34, d35, d36 and d37, pulse signal amplitude in downstream air bag 2 and the product of above-mentioned random time width, be A30* d20=A31*d21=A32*d22>A33*d23> A34*d24>A35*d25, or A0*d26=A1* d27=A2*d28>A3* d29>A4*d30>A5* d31, or A30*d32=A31* d33=A32*d34>A33*d35>A34*d36G reatT.GreaT.GTA35*d37, measurement occurs constantly at first maximum and constant pulse signal of the product of described pulse signal amplitude and above-mentioned random time width, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
6) the first gas bleeder valve is opened, and the first switch valve is opened, and second switch valve is opened, and loses heart to upstream air bag 1 and downstream air bag 2.
Scheme three: as shown in Figure 5, pressurization detects the two air bag pulse signals of diastolic pressure and detects and blood pressure
Device of the present invention can also detect the two air bag pulse signals of diastolic pressure for pressurization and detect and Measure blood pressure,
1) by a two fan-shaped cuff of air bag, or the non-fan-shaped cuff of two air bags, two joining cufves, or two not joining cufves bind on tested limbs, wherein upstream air bag 1 and downstream air bag 2 lay respectively at the upstream and downstream of limb artery blood flow.And upstream air bag 1 is connected with downstream air bag interface with the upstream air bag interface on main frame 4 with downstream trachea 10 by upstream trachea 9 respectively with downstream air bag 2;
2) press the start key of main frame 4 keyboards, gas bleeder valve cuts out, and the path of three-way air valve UNICOM downstream air bag 2 and air pump is also blocked the path of upstream air bag 1, air pump air bag 2 inflations downstream, and the air pressure of downstream air bag 2 slowly increases from zero;
3) this step has 4 kinds of embodiments, respectively as step 3-1), 3-2), 3-3) and 3-4):
3-1) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, now downstream air bag 2 is pressurized to a force value between tested systolic arterial pressure and diastolic pressure;
3-2) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization, the mean blood pressure value that now downstream air bag 2 is pressurized to tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg;
3-3) in to the process of downstream air bag 2 pressurizations, detect in real time the pulse signal in downstream air bag 2, when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
3-4) to the 2 segmentation pressurizations of downstream air bag, and after each section of pressurization finishes, detect the pulse signal in downstream air bag 2, when described pulse signal amplitude is greater than set-point, stop pressurization, the described segmented objects to the 2 segmentation pressurizations of downstream air bag is 80mmHg, 120mmHg, 160mmHg, 200mmHg, described pulse signal amplitude set-point is that 1.3mmHg for example, to value, a 1.5mmHg between 1.8mmHg;
4) gas bleeder valve cuts out, and the path of three-way air valve UNICOM upstream air bag 1 and air pump is also blocked the path of downstream air bag 2, and air pump thinks that upstream air bag 1 slowly inflates, and air bag 1 pressure in upstream slowly increases from zero;
5) in the process of slowly pressurizeing at upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the air pressure in described pulse signal and upstream air bag 1, determine tested auterial diastole pressure, the described method of determining that tested auterial diastole is pressed has 6 kinds, respectively as step 5-1), 5-2), 5-3), 5-4), 5-5) and 5-6):
5-1) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the amplitude A 30 of p34 and p35, A31, A32, A33, A34 and A35, obtain A30=A31=A32>A33>A34GreatT.Gr eaT.GTA35, measurement occurs constantly at the maximum and constant pulse signal of last amplitude of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-2) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the time width of described pulse signal all-wave by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the all-wave time width d20 of p34 and p35, d21, d22, d23, d24 and d25, obtain d20=d21=d22>d23>d24>d2 5, measurement occurs constantly at the maximum and constant pulse signal of last all-wave time width of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-3) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the front half-wave time width of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the front half-wave time width d26 of p34 and p35, d27, d28, d29, d30 and d31, obtain d26=d27=d28>d29>d30GreatT.Gr eaT.GTd31, measurement described pulse signal before last the maximum and constant pulse signal of half-wave time width occur constantly, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-4) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the rear half-wave time width of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the lower gasbag 2 detecting, p31, p32, p33, the rear half-wave time width d32 of p34 and p35, d33, d34, d35, d36 and d37, obtain d32=d33=d34>d35>d36GreatT.Gr eaT.GTd37, measurement occurs constantly at the maximum and constant pulse signal of last rear half-wave time width of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-5) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the area of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the area S30 of p34 and p35, S31, S32, S33, S34 and S35, obtain S30=S31=S32>S33>S34GreatT.Gr eaT.GTS35, measurement occurs constantly at the maximum and constant pulse signal of last area of described pulse signal, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
5-6) in the slow pressure process of upstream air bag 1, by the first pressure transducer 3, measure the air pressure constantly changing in upstream air bag 1, and the pulse signal of measuring in downstream air bag 2 by the second pressure transducer 5, according to the area of described pulse signal by constant air pressure in upstream air bag 1 while starting to diminish, determine tested auterial diastole pressure, for example, as Fig. 7, pulse signal p30 in the downstream air bag 2 detecting, p31, p32, p33, the amplitude A 30 of p34 and p35, A31, A32, A33, A34 and A35, all-wave time width d20, d21, d22, d23, d24 and d25, front half-wave time width d26, d27, d28, d29, d30 and d31, rear half-wave time width d32, d33, d34, d35, d36 and d37, pulse signal amplitude in downstream air bag 2 and the product of above-mentioned random time width, be A30* d20=A31*d21=A32*d22>A33*d23> A34*d24>A35*d25, or A0*d26=A1* d27=A2*d28>A3* d29>A4*d30>A5* d31, or A30*d32=A31* d33=A32*d34>A33*d35>A34*d36G reatT.GreaT.GTA35*d37, measurement occurs constantly at first maximum and constant pulse signal of the product of described pulse signal amplitude and above-mentioned random time width, it is the t32 atmospheric pressure value of upstream air bag 1 constantly, this atmospheric pressure value is tested auterial diastole and presses,
6) gas bleeder valve is opened, the path of three-way air valve UNICOM upstream air bag 1 and air pump is also blocked the path of downstream air bag 2, lose heart to upstream air bag 1, the path of Zai Jiang three-way air valve UNICOM downstream air bag 2 and air pump is also blocked the path of upstream air bag 1, loses heart to downstream air bag 2.
The device of Measure blood pressure provided by the invention is that two aerating gasbags of colligation pressurize on limbs, pressure and pulse signal effectively in upstream and downstream air bag, detected, thereby accurately, Measure blood pressure, and measurement result is reliably stable.
Claims (10)
1. a blood pressure measuring device, described measuring device, for measuring arteriotony by measured one limbs position, is characterized in that: described measuring device comprises
Two aerating gasbag upstream air bags (1) and downstream air bag (2); Described upstream air bag (1) with downstream air bag (2) in same cuff or in two different cufves that are connected or in two different cufves that are not connected, described cuff is used for being bundled in described limbs;
Two with in described upstream air bag (1) and downstream air bag (2) one or two respectively or pressure transducer the first pressure transducer (3) and second pressure transducer (5) of being connected simultaneously;
A microprocessor, described microprocessor is carried out the blood pressure measurement process comprising the following steps:
A) described downstream air bag (2) is pressurized to a force value between tested systolic arterial pressure and diastolic pressure, or the mean blood pressure value of tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg, or a force value, makes the pulse signal amplitude detecting in described downstream air bag (2) when this force value be greater than a set-point;
B) described upstream air bag (1) is slowly pressurizeed, in the slow pressure process of described upstream air bag (1), by described the first pressure transducer (3), measure the air pressure constantly changing in described upstream air bag (1), and measure the pulse signal in described downstream air bag (2) by described the second pressure transducer (5), according to the relation between the air pressure in described pulse signal and described upstream air bag (1), determine tested systolic arterial pressure.
2. a kind of blood pressure measuring device according to claim 1, is characterized in that:
In described steps A) in, described downstream air bag (2) is pressurized to force value between the systolic pressure of tested tremulous pulse and diastolic pressure and the mean blood pressure value that described downstream air bag (2) is pressurized to tested tremulous pulse is subtracted to the method that 10mmHg and average pressure value add a force value between 20mmHg is in to the process of downstream air bag (2) pressurization, detect in real time the pulse signal in downstream air bag (2), when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization; With downstream air bag (2) is pressurized to a force value, so that the pulse signal amplitude detecting in downstream air bag (2) when this force value is greater than the method for a set-point, be, will be in to the process of described downstream air bag (2) pressurization, detect in real time the entrained pulse signal of air pressure signal in described downstream air bag (2), when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization;
In described steps A) in, described pulse signal amplitude set-point be 1.3mmHg to a value between 1.8mmHg, be preferably 1.5mmHg.
3. a kind of blood pressure measuring device according to claim 1, it is characterized in that: described downstream air bag (2) is pressurized to a force value, the method that the pulse signal amplitude that makes to detect in described downstream air bag (2) when this force value is greater than a set-point is, described downstream air bag (2) segmentation is pressurizeed, and after each section of pressurization finishes, detect the pulse signal in described downstream air bag (2), when described pulse signal amplitude is greater than described set-point, stop pressurization; The segmented objects of described downstream air bag (2) segmentation pressurization is: 80mmHg, 120mmHg, 160mmHg, and 200mmHg.
4. a kind of blood pressure measuring device according to claim 1, it is characterized in that: at described step B) in, in the slow pressure process of described upstream air bag (1), by described the first pressure transducer (3), measure the air pressure constantly changing in described upstream air bag (1), and measure the pulse signal in described downstream air bag (2) by described the second pressure transducer (5) simultaneously, according to described pulse signal from big to small, air pressure described in while finally disappearing in upstream air bag (1), determines tested systolic arterial pressure.
5. a kind of blood pressure measuring device according to claim 1, it is characterized in that: at described step B) in the process of the slow pressurization of described upstream air bag (1), by described the first pressure transducer (3), measure the air pressure constantly changing in described upstream air bag (1), and measure the pulse signal in described downstream air bag (2) by described the second pressure transducer (5) simultaneously, according to described pulse signal from big to small, amplitude and the time of origin of last and penultimate pulse signal while finally disappearing, with the atmospheric pressure value in described time of origin upstream air bag (1), determine tested arterial blood systolic pressure.
6. two air bag pulse signal detection methods, the method, for detection of the air pressure in the cuff being bundled on tested limbs and pulse signal and interrelationship, is characterized in that: described pair of air bag pulse signal detection method comprises the following steps:
(1) upstream air bag (1) and downstream air bag (2) are bundled on tested limbs, described upstream air bag (1) with described downstream air bag (2) in same cuff or in two different cufves that are connected or in two different cufves that are not connected;
(2) one or two in the first pressure transducer (3) and the second pressure transducer (5) and described upstream air bag (1) and described downstream air bag (2) joined respectively or simultaneously;
(3) described downstream air bag (2) is pressurized to a force value between tested systolic arterial pressure and diastolic pressure, or the mean blood pressure value of tested tremulous pulse subtracts 10mmHg and average pressure value adds a force value between 20mmHg, or a force value, makes the pulse signal amplitude detecting in downstream air bag (2) when this force value be greater than a set-point;
(4) described upstream air bag (1) is slowly pressurizeed, in the process of slowly pressurizeing at described upstream air bag (1), by described the first pressure transducer (3), measure the air pressure constantly changing in described upstream air bag (1), and measure the pulse signal in described downstream air bag (2) by described the second pressure transducer (5), thereby measure the atmospheric pressure value in upstream air bag (1) when described pulse signal occurs simultaneously.
7. a kind of pair of air bag pulse signal detection method according to claim 6, is characterized in that:
In described step (3), described downstream air bag (2) is pressurized to the systolic pressure of tested tremulous pulse and the method for a force value between diastolic pressure and the mean blood pressure value that described downstream air bag (2) is pressurized to tested tremulous pulse is subtracted to the method that 10mmHg and average pressure value add a force value between 20mmHg and be, in to the process of described downstream air bag (2) pressurization, detect in real time the entrained pulse signal of air pressure signal in described downstream air bag (2), when described pulse signal amplitude is increased to maximum by zero, while then starting to decline, stop pressurization; With described downstream air bag (2) is pressurized to a force value, so that the pulse signal amplitude detecting in described downstream air bag (2) when this force value is greater than the method for a set-point, be, in to the process of described downstream air bag (2) pressurization, detect in real time the entrained pulse signal of air pressure signal in described downstream air bag (2), when described pulse signal amplitude is increased to while being greater than set-point by zero, stop pressurization;
In described step (3), described pulse signal amplitude set-point is a value between 1.3mmHg-1.8 mmHg.
8. a kind of pair of air bag pulse signal detection method according to claim 6, it is characterized in that: described downstream air bag (2) is pressurized to a force value, the method that the pulse signal amplitude that makes to detect in described downstream air bag (2) when this force value is greater than described set-point is, described downstream air bag (2) segmentation is pressurizeed, and after each section of pressurization finishes, detect the pulse signal in described downstream air bag (2), when described pulse signal amplitude is greater than described set-point, stop pressurization, the segmented objects of described downstream air bag (2) segmentation pressurization is, 80mmHg, 120mmHg, 160mmHg and 200mmHg.
9. a kind of pair of air bag pulse signal detection method according to claim 6, it is characterized in that: in the process of slowly pressurizeing at described upstream air bag (1), by described the first pressure transducer (3), measure the air pressure constantly changing in described upstream air bag (1), and measure the pulse signal in described downstream air bag (2) by described the second pressure transducer (5), thereby measure described pulse signal from big to small, while finally disappearing described in air pressure in upstream air bag (1).
10. a kind of pair of air bag pulse signal detection method according to claim 6, it is characterized in that: in the slow pressure process of described upstream air bag (1), by described the first pressure transducer (3), measure the air pressure constantly changing in described upstream air bag (1), and measure the pulse signal in described downstream air bag (2) by described the second pressure transducer (5), according to described pulse signal from big to small, the time of origin of last and penultimate pulse signal while finally disappearing, measure when described generation described in air pressure in upstream air bag (1).
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