CN115096575A - Intelligent electronic sphygmomanometer accessory detection equipment and detection method - Google Patents
Intelligent electronic sphygmomanometer accessory detection equipment and detection method Download PDFInfo
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- CN115096575A CN115096575A CN202210768468.XA CN202210768468A CN115096575A CN 115096575 A CN115096575 A CN 115096575A CN 202210768468 A CN202210768468 A CN 202210768468A CN 115096575 A CN115096575 A CN 115096575A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention provides intelligent electronic sphygmomanometer accessory detection equipment and a detection method, wherein the electronic sphygmomanometer accessory detection equipment comprises a control circuit, an inflator pump, a one-way valve, a vacuum tank and a pressure measuring module, wherein the vacuum tank is connected with a first test object; the control circuit comprises a PID controller, and the PID controller gives a control action according to a target pressure value P1 and a pressure value Y0 in the vacuum tank fed back by the pressure measuring module so as to drive the inflator pump to inflate the vacuum tank through the one-way valve. The intelligent electronic sphygmomanometer accessory detection equipment can be used for detecting the performance of all key accessories of an electronic sphygmomanometer, and particularly increases the function of detecting the low-pressure air leakage time of the electromagnetic valve, so that the performance of the electronic sphygmomanometer is greatly improved.
Description
Technical Field
The invention relates to the technical field of electronic sphygmomanometers, in particular to intelligent electronic sphygmomanometer accessory detection equipment and a detection method.
Background
The electronic sphygmomanometer is a medical device for measuring blood pressure by using modern electronic technology and an indirect blood pressure measuring principle. The electronic sphygmomanometer is generally composed of a blocking cuff, a sensor, an air pump, a constant-speed air outlet nozzle, an electromagnetic valve, a measuring circuit and the like.
The electronic sphygmomanometer has strict requirements on the air tightness of the whole blood pressure measuring system, the constant-speed exhaust speed in the blood pressure measuring process and the exhaust speed after the blood pressure measurement is finished. The cuff mainly detects the air tightness and the pressure resistance of the cuff, and the cuff with poor air tightness can cause the air leakage rate of the whole blood pressure measuring system to be too high, so that the accuracy of blood pressure measurement is influenced. The constant-speed exhaust nozzle mainly detects the time for the constant-speed exhaust nozzle to fall from 220mmHg to 50 mmHg. When the electronic sphygmomanometer for measuring the blood pressure is used for measuring, the air leakage rate is generally 2-6 mmHg/s, the measuring comfort level is poor due to too slow air leakage, and the measuring accuracy is poor due to too fast air leakage.
The solenoid valve is used as a key accessory of the electronic sphygmomanometer, and the high-pressure air tightness, the low-pressure air tightness and the air leakage time of the solenoid valve directly influence the accuracy of blood pressure measurement.
The air release time of the electromagnetic valve in the sphygmomanometer generally refers to the time for the system pressure value to drop from 300mmHg to 15 mmHg. During the blood pressure measurement, the real air leakage of the electromagnetic valve is started after the blood pressure measurement is finished, and the pressure value of the system is far less than 300 mmHg. As shown in fig. 1 below, the deflation time for the solenoid valves 1 and 2 from 300mmHg to 15mmHg is 4 seconds, but during the actual blood pressure measurement, the solenoid valve deflation starts from the inflection point 1, when the system pressure value is less than 300 mmHg. The solenoid valve 1 takes 3 seconds to drop from 60mmHg to 15mmHg, while the solenoid valve 2 takes 1 second. When the electromagnetic valve 1 is installed in a sphygmomanometer to perform continuous detection without intervals, inaccurate measurement can occur, and the pressure value in the measurement process is shown in the following figure 2.
Therefore, for the solenoid valve, the bleed time needs to detect not only the time for dropping from 300mmHg to 15mmHg but also the time for dropping from low pressure (e.g., 60 mmHg) to 15 mmHg.
In conclusion, the blocking cuff, the constant-speed exhaust nozzle and the electromagnetic valve are used as key accessories of the electronic sphygmomanometer, and the accuracy of blood pressure measurement can be influenced when any accessory is in trouble. In the prior art, each accessory corresponds to one piece of detection equipment, so that more detection equipment is needed. And inaccurate measurement results may occur in the case of continuously measuring blood pressure by the sphygmomanometer.
Disclosure of Invention
The invention provides intelligent electronic sphygmomanometer accessory detection equipment and a detection method, aiming at the problems of excessive detection equipment, inaccurate measurement result and the like required by the existing electronic sphygmomanometer.
In a first aspect, the invention firstly provides intelligent electronic sphygmomanometer accessory detection equipment, which comprises a control circuit, an air pump, a one-way valve, a vacuum tank and a pressure measuring module, wherein the vacuum tank is connected with a first test object; the control circuit comprises a PID controller, and the PID controller gives a control action according to a target pressure value P1 and a pressure value Y0 in the vacuum tank fed back by the pressure measuring module so as to drive the inflator pump to inflate the vacuum tank through the one-way valve.
Preferably, the control circuit further comprises a switch circuit, and the switch circuit is connected with the second test object.
Preferably, electrosphygmomanometer accessory check out test set is provided with an operation panel, the operation panel is provided with display screen, target pressure value input key, life-span detection button, airtight detection button and the time of disappointing detects the button.
Preferably, the operation surface is further provided with an air source output interface, and the air source output interface is connected with the vacuum tank.
Preferably, a gas pressure gauge is arranged on a pipeline between the gas source output interface and the vacuum tank.
Preferably, the pressure measuring module is provided as a pressure sensor.
The invention further provides a detection method adopting the intelligent electronic sphygmomanometer accessory detection equipment, and the detection method comprises service life detection, air tightness detection and air leakage time detection.
The service life detection specifically comprises the following steps: and S1, continuously turning on and off the power supply of the second test object through the switch circuit according to the set switching period.
The airtightness detection specifically comprises the following steps:
s1, setting a target pressure value P1, wherein the PID controller gives a control action according to a difference value P1-Y0 between the target pressure value P1 and a pressure value Y0 in the vacuum tank fed back by the pressure measuring module to drive the inflator pump to inflate the vacuum tank, so that the pressure value of the vacuum tank reaches a target pressure value P1;
s2, after the pressure value of the vacuum tank is stabilized at the target pressure value P1, the PID controller is closed, and the inflator stops inflating the vacuum tank;
s3, after waiting for T1 minutes, the pressure value in the vacuum tank is changed to P2, so that the air leakage rate of the test object I can be found to be P1-P2 mmHg/min.
The air leakage time detection specifically comprises the following steps:
s1, setting a target pressure value P1, wherein the PID controller gives a control action according to a difference value P1-Y0 between the target pressure value P1 and a pressure value Y0 in the vacuum tank fed back by the pressure measuring module to drive the inflator pump to inflate the vacuum tank, so that the pressure value of the vacuum tank reaches a pressure value P1+ P0;
s2, after the pressure value of the vacuum tank is stabilized at P1+ P0, the PID controller is closed, and the inflator stops inflating the vacuum tank;
and S3, deflating the system at a constant speed, starting timing when the pressure value of the vacuum tank is reduced to P1, stopping timing when the pressure value is P2, and obtaining the time T2 required by deflating the vacuum tank at the constant speed to the pressure value P2 from the pressure value P1.
The invention has the beneficial effects that: this electronic sphygmomanometer accessory check out test set of intelligence can be used to detect the performance of all key accessories of electronic sphygmomanometer, can accomplish life-span detection, gas tightness detection and the time detection of disappointing, increases the function that detects the time of disappointing of solenoid valve low pressure very much, and then the performance of guarantee electronic sphygmomanometer increases by a wide margin.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required to be used in the description will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a diagram of the pressure change during the blood pressure measurement process of the electromagnetic valve 1 and the electromagnetic valve 2 according to the present invention.
Fig. 2 is a diagram of the pressure change during three blood pressure measurements of the solenoid valve 1 according to the present invention.
Fig. 3 is a working principle diagram of the intelligent electronic sphygmomanometer accessory detection device.
Fig. 4 is a schematic structural diagram of the operation surface of the intelligent electronic sphygmomanometer accessory detection device.
Fig. 5 is a schematic structural diagram of a part of the intelligent electronic sphygmomanometer accessory detection equipment.
In the figure: 1. the device comprises an inflator pump, a one-way valve, a vacuum tank, a display screen, a target pressure value input key, a service life detection key, a gas tightness detection key, an air leakage time detection key, a gas source output interface, a power supply quick interface, a data transmission port, a gas pressure gauge and a control unit, wherein the inflator pump is 2, the one-way valve is 3, the vacuum tank is 4, the display screen is 5, the target pressure value input key is 6, the service life detection key is 7, the gas tightness detection key is 8, the air leakage time detection key is 9, the gas source output interface is 10, the power supply quick interface is 11, the data transmission port is 12.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is obvious that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in fig. 3 to 5, in the present embodiment, the present invention provides an intelligent electronic sphygmomanometer accessory detection apparatus, including a control circuit, an inflator 1, a one-way valve 2, a vacuum tank 3, and a pressure measuring module, wherein, in a specific embodiment, the pressure measuring module may be configured as a pressure sensor, and the vacuum tank 3 is configured as a 500cc or 200cc gas surge tank; the vacuum tank 3 is connected with a first test object; the control circuit comprises a PID controller, and the PID controller gives control action according to a target pressure value P1 and a pressure value Y0 in the vacuum tank 3 fed back by the pressure measuring module so as to drive the inflator pump 1 to inflate the vacuum tank through the one-way valve 2.
As shown in fig. 3, the control circuit further includes a switch circuit, the switch circuit is connected to the second test object, the second test object can be detected for its life through the switch circuit, the life detection is a function of the analog device switch, and the power supply can be continuously turned on and off according to a set switch cycle, for example, the number of times of operation of a speaker of the sphygmomanometer and the life of the sphygmomanometer can be detected, that is, the second test object can be provided as a component such as a sphygmomanometer or a speaker, and the life of the device having the switch characteristic can be detected. The service life detection specifically comprises the following steps: and continuously turning on and off the power supply of the second test object through the switching circuit according to the set switching period.
The electronic sphygmomanometer accessory detection equipment can perform air tightness detection and air leakage time detection besides service life detection.
The air tightness detection specifically comprises the following steps:
s1, setting a target pressure value P1, and enabling the PID controller to give a control action according to a difference value P1-Y0 between the target pressure value P1 and a pressure value Y0 in the vacuum tank 3 fed back by the pressure measuring module so as to drive the inflator pump 1 to inflate the vacuum tank 3, so that the pressure value of the vacuum tank 3 quickly and stably reaches the target pressure value P1;
s2, after the pressure value of the vacuum tank 3 is stabilized at the target pressure value P1, the PID controller is closed, and the inflator pump 1 stops inflating the vacuum tank 3;
s3, after waiting for T1 minutes, the pressure value in the vacuum tank 3 is changed to P2, so that the air leakage rate of the first test object is P1-P2 mm Hg/minute, and T1 can be directly taken for 1 minute for simple calculation.
The detection of the air leakage time specifically comprises the following steps:
s1, setting a target pressure value P1, and enabling the PID controller to give a control action according to a difference value P1-Y0 between the target pressure value P1 and a pressure value Y0 in the vacuum tank 3 fed back by the pressure measuring module so as to drive the inflator pump 1 to inflate the vacuum tank 3, so that the pressure value of the vacuum tank 3 reaches a pressure value P1+ P0;
s2, after the pressure value of the vacuum tank 3 is stabilized at P1+ P0, the PID controller is closed, and the inflator pump 1 stops inflating the vacuum tank 3;
and S3, deflating the system at a constant speed, starting timing when the pressure value of the vacuum tank 3 is reduced to P1, stopping timing when the pressure value is P2, and obtaining the time T2 required by deflating the pressure value P1 at the constant speed to reach the pressure value P2.
As shown in fig. 4 and 5, the electronic sphygmomanometer accessory detection device is provided with an operation surface, the operation surface is provided with a display screen 4, a target pressure value input key 5, a service life detection key 6, an air tightness detection key 7, an air leakage time detection key 8, an air source output interface 9, a power supply quick interface 10 and a data transmission port 11, the display screen 4 adopts a liquid crystal display screen and is matched with a backlight plate, the display is clear, and the electronic sphygmomanometer accessory detection device is compatible with sphygmomanometer accessories and convenient to replace; the air source output interface 9 is connected with the vacuum tank 3; the two target pressure value input keys 5 are convenient for performing addition and subtraction operations on the target pressure value, the target pressure value can be flexibly set through the two keys of the target pressure value input keys 5, the pressure detection of the air tightness and the air leakage time of different devices is met, multiple channels can be performed simultaneously, and the detection result can be connected to a computer through a serial port for checking; the two air leakage time detection keys 8 are arranged and respectively used for calibrating the air leakage time I and the air leakage time II, and the keys and the shell are integrally arranged, so that the use effect is ensured, and the cost is low; the two power quick interfaces 10 are also arranged, so that a second test object needing life detection can be conveniently and directly connected with the detection equipment through the power quick interfaces 10; the data transmission port 11 is provided to facilitate transmission and storage of data. And a gas pressure gauge 12 is arranged on a pipeline between the gas source output interface 9 and the vacuum tank 3, and displays a pressure value in real time.
In the specific design, the intelligent electronic sphygmomanometer accessory detection equipment only designs an upper shell and a lower shell, has a simple integral appearance structure, is fastened by screws, and is convenient for assembly, disassembly and replacement of accessories; the overall appearance of the device imitates the appearance of common detection equipment, so that the device is convenient to transport and stack; the shell is provided with a quick-connection power socket, so that the crocodile chuck can be conveniently inserted and connected, and power supply is convenient; the shell is provided with a quick-connection pagoda-shaped joint, so that the whole structure is simple, and the output of an air source is convenient; the rear part of the shell is provided with a universal direct current interface socket for convenient plug-in of 24V power supply at any time.
The inside of the device adopts a precise gas pressure gauge 12 to collect gas pressure, and the aviation connector carries out real-time data transmission. The connection of each internal gas circuit adopts the matching of a silicone tube and a pagoda-shaped joint (belongs to compression sealing), the pipelines are tightly tied by an anti-UV (ultraviolet) binding tape after the insertion and the connection are finished, and the interface is sealed for three times by using liquid sealant so as to ensure the air tightness. The inflator pump 1 outputs gas through the one-way valve 2, so that the one-way output of the gas is ensured, the effect is non-return, and the sealing of the gas input end is ensured.
When the inflator pump 1 and the vacuum tank 3 are installed, foam is coated to absorb shock, and air inlet and outlet noise is reduced. Wherein the vacuum tank 3 adopts a single joint 500CC air storage tank. The single connector is selected to ensure the use requirement, the interfaces can be reduced as much as possible, and the whole gas circuit sealing is ensured. The pressure resistance of the 500CC gas storage tank is less than or equal to 1.25Mpa, and the pressure stabilization and use requirements can be completely ensured.
The beneficial effects of the invention are as follows through the embodiment:
this electronic sphygmomanometer accessory check out test set of intelligence can be used to detect the performance of all key accessories of electronic sphygmomanometer, can accomplish life-span detection, gas tightness detection and the time detection of disappointing, increases the function that detects the time of disappointing of solenoid valve low pressure very much, and then the performance of guarantee electronic sphygmomanometer increases by a wide margin.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The intelligent electronic sphygmomanometer accessory detection equipment is characterized by comprising a control circuit, an inflator pump, a one-way valve, a vacuum tank and a pressure measuring module, wherein the vacuum tank is connected with a first test object; the control circuit comprises a PID controller, and the PID controller gives a control action according to a target pressure value P1 and a pressure value Y0 in the vacuum tank fed back by the pressure measuring module so as to drive the inflator pump to inflate the vacuum tank through the one-way valve.
2. The intelligent electronic sphygmomanometer accessory test apparatus of claim 1, wherein the control circuit further comprises a switch circuit, the switch circuit being connected to a second test object.
3. The intelligent electronic sphygmomanometer accessory detection apparatus according to claim 2, wherein the electronic sphygmomanometer accessory detection apparatus is provided with an operation surface, and the operation surface is provided with a display screen, a target pressure value input key, a life detection key, an air tightness detection key and an air leakage time detection key.
4. The intelligent electronic sphygmomanometer accessory detection apparatus according to claim 3, wherein the operation surface is further provided with an air source output interface, and the air source output interface is connected with the vacuum tank.
5. The intelligent electronic sphygmomanometer accessory detection apparatus according to claim 4, wherein a gas pressure gauge is arranged on a pipeline between the gas source output interface and the vacuum tank.
6. The intelligent electronic sphygmomanometer accessory detect apparatus of claim 1, wherein the pressure measuring module is configured as a pressure sensor.
7. A detection method using the intelligent electronic sphygmomanometer accessory detection apparatus as claimed in any one of claims 2 to 6, wherein the detection method comprises a life detection, an air tightness detection and a deflation time detection.
8. The detection method according to claim 7, wherein the lifetime detection comprises in particular the steps of: and S1, continuously turning on and off the power supply of the second test object through the switch circuit according to the set switching period.
9. The detection method according to claim 7, characterized in that said airtightness detection comprises in particular the steps of:
s1, setting a target pressure value P1, wherein the PID controller gives a control action according to a difference value P1-Y0 between the target pressure value P1 and a pressure value Y0 in the vacuum tank fed back by the pressure measuring module so as to drive the inflator pump to inflate the vacuum tank, and the pressure value of the vacuum tank reaches the target pressure value P1;
s2, after the pressure value of the vacuum tank is stabilized at the target pressure value P1, the PID controller is closed, and the inflator stops inflating the vacuum tank;
s3, after waiting for T1 minutes, the pressure value in the vacuum tank is changed to P2, so that the air leakage rate of the test object I can be found to be P1-P2 mmHg/min.
10. The detection method according to claim 7, wherein the deflation time detection specifically comprises the steps of:
s1, setting a target pressure value P1, wherein the PID controller gives a control action according to a difference value P1-Y0 between the target pressure value P1 and a pressure value Y0 in the vacuum tank fed back by the pressure measuring module to drive the inflator pump to inflate the vacuum tank, so that the pressure value of the vacuum tank reaches a pressure value P1+ P0;
s2, after the pressure value of the vacuum tank is stabilized at P1+ P0, the PID controller is closed, and the inflator stops inflating the vacuum tank;
and S3, deflating the system at a constant speed, starting timing when the pressure value of the vacuum tank is reduced to P1, stopping timing when the pressure value is P2, and obtaining the time T2 required by deflating the vacuum tank at the constant speed to the pressure value P2 from the pressure value P1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210768468.XA CN115096575A (en) | 2022-07-01 | 2022-07-01 | Intelligent electronic sphygmomanometer accessory detection equipment and detection method |
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| CN202210768468.XA CN115096575A (en) | 2022-07-01 | 2022-07-01 | Intelligent electronic sphygmomanometer accessory detection equipment and detection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115381418A (en) * | 2022-10-27 | 2022-11-25 | 深圳市景新浩科技有限公司 | Non-invasive high-precision blood pressure detection system |
| CN117168694A (en) * | 2023-11-02 | 2023-12-05 | 陕西中欣福源医疗科技发展有限公司 | Detection equipment for electronic sphygmomanometer |
-
2022
- 2022-07-01 CN CN202210768468.XA patent/CN115096575A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115381418A (en) * | 2022-10-27 | 2022-11-25 | 深圳市景新浩科技有限公司 | Non-invasive high-precision blood pressure detection system |
| CN117168694A (en) * | 2023-11-02 | 2023-12-05 | 陕西中欣福源医疗科技发展有限公司 | Detection equipment for electronic sphygmomanometer |
| CN117168694B (en) * | 2023-11-02 | 2024-01-05 | 陕西中欣福源医疗科技发展有限公司 | Detection equipment for electronic sphygmomanometer |
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