Blood pressure measurement control device and circuit

Abstract

In the blood pressure measurement control device and the circuit, an air pump is communicated with an air inlet end of an external air bag and is used for inflating the external air bag; the deflation valve is used for being communicated with the air outlet end of an external air bag and used for exhausting air in the external air bag. The pressure sensor is communicated with the external air bag and is used for detecting the pressure in the external air bag; the pressure sensor, the air pump and the deflation valve are all electrically connected with the main controller; in the newborn mode, namely the B mode, the main controller is used for controlling one of the deflation valve B and the deflation valve C to be communicated with the air outlet end of the external air bag; in the child mode, namely the C mode, the main controller is used for controlling the deflation valve B and the deflation valve C to be communicated with the air outlet end of the external air bag at the same time. By means of alternate arrangement of the two newborn deflation valves, the measurement reliability in a newborn mode can be improved in an alternate working mode, and meanwhile blood pressure measurement in a pediatric mode with higher precision is achieved by means of synchronous working of the double newborn deflation valves.

Description

Technical Field

[0001] The utility model relates to the technical field of blood pressure measuring devices and methods, and in particular to a blood pressure measuring device and method in which multiple measuring objects can share some components. Background Art

[0002] In the prior art, some blood pressure measuring devices measure blood pressure by applying pressure to block the fluctuation of local arteries. Electronic blood pressure measuring devices are usually composed of an occlusion cuff, a sensor, an air pump, and a measuring circuit. Blood pressure is measured by measuring the pressure change characteristics during the process of pressure increase or decrease through a pressure sensor. Measuring during the pressure increase process is a synchronous measurement during the cuff pressurization process. More commonly, after the cuff is pressurized to a certain pressure, it is deflated according to a certain rule, and pressure measurement is performed during the deflation process.

[0003] The blood pressure range varies depending on the object of measurement. The normal range of blood pressure in children is: systolic pressure = age × 2 + 80 mmHg, and diastolic pressure is equal to 1 / 3 to 1 / 2 of the systolic pressure. Generally, the systolic pressure of a newborn is between 70 and 82 mmHg, and the diastolic pressure is between 30 and 38 mmHg. The normal range of blood pressure for children aged 2 to 7 is 85 to 105 / 55 to 65 mmHg.

[0004] Comparing the blood pressure reference value ranges of the above-mentioned different measurement objects, it can be seen that there are great differences. It is challenging for the same set of hardware devices to adapt to the above-mentioned measurement reference ranges, especially when taking into account multiple modes such as newborns, children and adults. The challenge is even greater.

[0005] To ensure the accuracy of blood pressure measurement, not only the accuracy of the pressure sensor is required, but also the characteristics of the cuff, i.e. the air bag, and the measured object must match each other. For example, newborns need to be equipped with neonatal cuffs, children need to be equipped with pediatric cuffs, and adults need to be equipped with adult cuffs. Different cuffs can withstand different pressure ranges, and the amount of air pumped in is also different. During measurement, the pressure control accuracy during the deflation or inflation process determines the accuracy of the pressure pulse signal measurement during the deflation or inflation stage, and also provides support for the accuracy of blood pressure measurement. It is also not suitable to use the same pressure change process control for different cuffs. At the same deflation rate, the pressure change process of different cuffs is different, so it is necessary to take into account both measurement accuracy and measurement efficiency.

[0006] In the prior art, considering the cost and complexity of the control method, a neonatal mode and an adult mode are usually provided to take into account, so that people with particularly large differences can use the same device for measurement. In the neonatal mode, a neonatal cuff is used in conjunction with a control valve to control the cuff pressure change process in the neonatal mode. In the adult mode, an adult cuff is used in conjunction with a control valve to control the cuff pressure change process in the adult mode. The control valve in the neonatal mode needs to perform a small flow of airflow control so that the details of the pressure changes in the cuff can be preserved and reflected. Deflation too quickly will result in measurement failure or large measurement deviation. Small flow of airflow control usually means that the air outlet is small, and a small air outlet is very easy to be blocked by dust or foreign matter, increasing the probability of failure. How to reduce the probability of failure in the neonatal mode is a technical problem to be solved.

[0007] Moreover, in the neonatal mode, a neonatal cuff is used in conjunction with a control valve to control the cuff pressure change process in the neonatal mode. Although measurements can be performed in the neonatal mode, such a deflation process takes longer time for children and is not efficient. How to balance measurement efficiency and accuracy in different modes is also a technical problem to be solved. Summary of the invention

[0008] The technical solution of the utility model overcomes the shortcomings of the prior art and proposes a novel blood pressure measurement control device and method, which can improve the measurement reliability in the neonatal mode by alternating work with the help of the setting of two neonatal deflation valves, and at the same time achieve higher-precision blood pressure measurement in the pediatric mode with the help of double neonatal valves.

[0009] The technical solution to solve the above-mentioned technical problems in the present application is a blood pressure measurement control device, which is used for controlling the blood pressure measurement process, and includes a main controller, an air pump, a pressure sensor and at least two deflation valves, namely, deflation valve B and deflation valve C; the air pump is connected to the air inlet end of the external air bag for inflating the external air bag; the deflation valve is connected to the air outlet end of the external air bag for discharging the gas in the external air bag; the pressure sensor is connected to the external air bag for detecting the pressure inside the external air bag; the pressure sensor, the air pump and the deflation valve are all electrically connected to the main controller; in the neonatal mode, i.e., mode B, the main controller is used to control the deflation valve B and the deflation valve C to selectively connect to the air outlet end of the external air bag; in the pediatric mode, i.e., mode C, the main controller is used to control the deflation valve B and the deflation valve C to connect to the air outlet end of the external air bag at the same time.

[0010] The blood pressure measurement and control device also includes an air release valve A. In the adult mode, namely the A mode, the main controller is used to control the air release valve A to communicate with the air outlet end of the external air bag.

[0011] In the neonatal mode, namely, mode B, the deflation valve B or the deflation valve C is connected to the air outlet end of the external air bag B alternately.

[0012] The blood pressure measurement and control device also includes external airbag A, external airbag B and external airbag C; external airbag A is an adult airbag with a capacity range of 250mL-500mL; external airbag B is a neonatal airbag with a capacity range of 30mL-150mL; external airbag C is a pediatric airbag with a capacity range of 120mL-250mL.

[0013] The apertures of the air release channels of air release valve A, air release valve B and air release valve C are 12mm, 5mm and 5mm respectively; the working voltage is 12V.

[0014] The technical solution for solving the above-mentioned technical problems in the present application can also be a blood pressure measurement control circuit, including a bleed valve A, a bleed valve B and a bleed valve C; including a switch tube Q1, a switch tube Q2 and a switch tube Q3; one end of the switch tube Q1 is electrically connected to the bleed valve A, and the switch tube Q1 is used to control the switch of the bleed valve A; one end of the switch tube Q2 is electrically connected to the bleed valve B, and the switch tube Q2 is used to control the switch of the bleed valve B; one end of the switch tube Q3 is electrically connected to the bleed valve C, and the switch tube Q3 is used to control the switch of the bleed valve C; the control end of the switch tube Q1 is used to obtain the switch control signal A of the bleed valve A from the outside; the control end of the switch tube Q2 is used to obtain the switch control signal B of the bleed valve B from the outside; the control end of the switch tube Q3 is used to obtain the switch control signal C of the bleed valve C from the outside.

[0015] One end of the switch tube Q1, one end of the switch tube Q2, and one end of the switch tube Q3 are all electrically connected, and this end is electrically connected to one end of the switch tube Q4, and at the same time, this end is also electrically connected to one end of the switch tube Q5; the control end of the switch tube Q4 is used to obtain a switch control signal D from the outside; the control end of the switch tube Q5 is used to obtain a switch control signal E from the outside.

[0016] Switch control signal A, switch control signal B, switch control signal C, switch control signal D, and switch control signal E are used to jointly control deflation valve A, deflation valve B, and deflation valve C; in adult mode, i.e., mode A, the above control signals are used to control deflation valve A to be connected to the air outlet end of the external air bag; in neonatal mode, i.e., mode B, the above control signals are used to control deflation valve B and deflation valve C to be connected to the air outlet end of the external air bag at the same time; in pediatric mode, i.e., mode C, the above control signals are used to control deflation valve B and deflation valve C to be connected to the air outlet end of the external air bag at the same time.

[0017] In the neonatal mode, ie, mode B, the control signal is used to connect the deflation valve B or the deflation valve C to the outlet end of the external air bag B alternately.

[0018] The blood pressure measurement control circuit also includes a diode D1, a diode D2 and a diode D3; the two ends of the diode D1 are electrically connected to the two ends of the air release valve A respectively; the two ends of the diode D2 are electrically connected to the two ends of the air release valve B respectively; the two ends of the diode D3 are electrically connected to the two ends of the air release valve C respectively; the cathode of the diode D1 is electrically connected to the power supply VCC; the cathode of the diode D2 is electrically connected to the power supply VCC; the cathode of the diode D3 is electrically connected to the power supply VCC.

[0019] The technical solution to solve the above-mentioned technical problems in the present application can also be a blood pressure measurement and control method, comprising the following steps: setting a measurement mode, the measurement mode including a pediatric mode and a neonatal mode; controlling the inflation and deflation process according to the measurement mode; in the neonatal mode, i.e., mode B, the external air bag is a neonatal air bag, i.e., external air bag B, and the deflation valve is a neonatal deflation valve, i.e., deflation valve B or deflation valve C, and either deflation valve B or deflation valve C is selectively connected to the external air bag B to control the inflation or deflation of the external air bag B; in the pediatric mode, i.e., mode C, the external air bag is a pediatric air bag, i.e., external air bag C, and the deflation valve B and the deflation valve C are simultaneously connected to the external air bag C to control the inflation or deflation of the external air bag B; during the inflation or deflation process, the pressure in the external air bag is detected, and the blood pressure value is calculated based on the pressure signal.

[0020] In the neonatal mode, i.e., mode B, the deflation speed range is 2 mmHg / sec-4 mmHg / sec; in the pediatric mode, i.e., mode C, the deflation speed range is 3 mmHg / sec-6 mmHg / sec.

[0021] In the neonatal mode, ie, mode B, the deflation valve B or the deflation valve C is connected to the external air bag B alternately to control the inflation or deflation of the external air bag B.

[0022] The measurement mode includes an adult mode; in the adult mode, namely, mode A, the deflation valve A is connected to the external air bag A to control the inflation or deflation of the external air bag A.

[0023] The blood pressure measurement and control method also includes an external air bag A, an external air bag B and an external air bag C; the external air bag A is an adult air bag with a capacity range of 250mL-500mL; the external air bag B is a neonatal air bag with a capacity range of 30mL-150mL; the external air bag C is a pediatric air bag with a capacity range of 120mL-250 mL; the deflation channel apertures of the deflation valve A, the deflation valve B and the deflation valve C are 12mm, 5mm and 5mm respectively.

[0024] Compared with the prior art, one of the beneficial effects of the utility model is that the setting of the double neonatal deflation valve provides a deflation process control that is more suitable for the pediatric state for the blood pressure measurement in the pediatric mode, which can avoid the problem of excessive deflation caused by the use of adult deflation valves in the pediatric mode, and can also avoid the problem of low measurement efficiency when using a single neonatal deflation valve in the pediatric mode.

[0025] Compared with the prior art, one of the beneficial effects of the utility model is that the setting of the double neonatal deflation valves can alternately perform air path deflation control in the neonatal mode, thereby improving the measurement reliability in the neonatal mode.

[0026] Compared with the prior art, one of the beneficial effects of the utility model is that in the neonatal mode, namely, mode B, the deflation speed range is 2 mmHg / sec-4 mmHg / sec; the deflation rate is appropriately controlled, which can improve the measurement accuracy in the neonatal mode.

[0027] Compared with the prior art, one of the beneficial effects of the utility model is that in the pediatric mode, namely, mode C, the deflation speed range is 3 mmHg / sec-6 mmHg / sec. The cooperation between the deflation valve B and the deflation valve C provides a more sophisticated deflation process control coordination mechanism. The deflation rates of the deflation valve B and the deflation valve C can be set in different intervals, and the control of more deflation modes can be achieved through the alternating cooperation of the two deflation valves.

[0028] Compared with the prior art, one of the beneficial effects of the utility model is that the capacity of the deflation valve A, the deflation valve B and the deflation valve C cooperate with the airbag A, the airbag B and the airbag C to achieve more accurate blood pressure measurement of different measurement objects in multiple measurement modes.

[0029] Compared with the prior art, one of the beneficial effects of the utility model is that the main controller controls the operation of the corresponding deflation valve according to the current measurement mode through an adaptive control engine, thereby realizing the selection and matching of the deflation valve, making the deflation process smoother and the pressure signal more stable, which is beneficial to the subsequent blood pressure signal processing process and improves the measurement accuracy.

[0030] Compared with the prior art, one of the beneficial effects of the utility model is that the control circuit is simple to implement, low in cost and can effectively solve the problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is one of the schematic block diagrams of a blood pressure measurement and control device;

[0032] Figure 2 This is the second schematic block diagram of the blood pressure measurement and control device;

[0033] Figure 3 It is one of the flow charts of the blood pressure measurement and control method;

[0034] Figure 4 This is the second flow chart of the blood pressure measurement and control method;

[0035] Figure 5 It is the connection diagram of the blood pressure measurement control circuit. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0037] As used herein, the term "prepared from" is synonymous with "comprising". As used herein, the terms "comprising", "having", "containing" or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that includes the listed elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus. The conjunction "consisting of" excludes any unspecified element, step, or component.

[0038] If used in a claim, this phrase will make the claim closed, so that it does not include materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of..." appears in a clause of the body of the claim rather than immediately after the subject matter, it only defines the elements described in the clause; other elements are not excluded from the above claims as a whole. When an amount, concentration, or other value or parameter is expressed as a range, a preferred range, or a range defined by a series of upper preferred values ​​and lower preferred values, this should be understood as specifically disclosing all ranges formed by any pairing of any upper range limit or preferred value with any lower range limit or preferred value, regardless of whether the range is disclosed separately. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted as including the range "1 to 4", "1 to 3", "1 to 2", "1 to 2 and 4 to 5", "1 to 3 and 5", etc. When a numerical range is described herein, unless otherwise specified, the range is intended to include its end values ​​and all integers and fractions within the range. The singular form includes the plural discussion object unless the context clearly indicates otherwise. "Optional" or "any one" means that the matter or event described thereafter may or may not occur, and the description includes situations where the event occurs and situations where the event does not occur. Approximate terms in the specification and claims are used to modify the quantity, indicating that the utility model is not limited to the specific quantity, and also include acceptable parts close to the quantity that will not cause changes in the relevant basic functionality. Accordingly, a numerical value is modified with "about", "approximately", etc., meaning that the utility model is not limited to the exact numerical value. In some examples, approximate terms may correspond to the accuracy of the instrument measuring the numerical value. In the specification and claims of this application, range limitations can be combined and / or interchanged, and if there is no additional explanation, these ranges include all sub-ranges contained therein. In addition, the indefinite articles "a" and "one" before the elements or components of the utility model are not restrictive to the quantity requirements (i.e., the number of occurrences) of the elements or components. Therefore, "one" or "a" should be interpreted as including one or at least one, and the elements or components in the singular form also include the plural form, unless the above number obviously refers to the singular form.

[0039] The non-invasive blood pressure measurement system is one of the important monitoring parameters of monitoring products. Most non-invasive blood pressure measurements are based on the oscillation method, which requires inflating and deflation to block the blood flow in the arm and obtain an oscillation wave signal to achieve non-invasive blood pressure measurement. Since the size of the cuffs, i.e., the airbags, for adults and newborns is very different, the control of inflation and deflation is different. Especially for newborns, the air path control is more precise (small deflation aperture). The current method has the following problems: 1) Since the cuff is small and the air path aperture for newborns is small, it is easy to be blocked during use; 2) The dynamic range of the analog signal of the oscillation wave is insufficient. The acquisition of oscillation wave signals and the improvement of system reliability for high-performance non-invasive blood pressure measurement based on the existing hardware platform are technical problems to be solved.

[0040] The air path aperture of neonatal blood pressure measurement is small and easy to be blocked, which is a technical problem to be solved. In order to solve the problem of easy blockage during neonatal deflation, a deflation control is added in the design, and an adaptive control engine is introduced to control the corresponding deflation valve according to the current measurement mode, realize the selection and matching of the deflation valve, and control the deflation state and mode. According to the results, it is adaptively adjusted and replaced to avoid the blockage of the air path, thereby extending the life of neonatal applications.

[0041] In the current prior art, no special control valve is provided for the pediatric measurement mode (usually shared with adults). For blood pressure measurement in pediatric mode, the pediatric cuff is much smaller than that of adults. If the deflation control hardware in adult mode is used, it will lead to insufficient deflation control in pediatric measurement mode, which is prone to excess deflation and inability to stably obtain pressure change process data, thus affecting the measurement accuracy. In this application, by adding a new neonatal deflation valve and using a control port to achieve synchronous control of the double valves, the excess deflation during pediatric deflation can be overcome, thereby achieving effective and reliable measurement of pediatric blood pressure and improving the accuracy of gas control operations. For the deflation mode of pediatric measurement, an additional deflation control that can control the double valves is added. Through mode setting, the separate control of the double valves is achieved, thereby achieving measurement for pediatric applications; by adopting a dual-pipeline linkage mechanism, the dynamic range of the pressure signal in the pediatric mode is achieved and improved by expanding the gas path, and at the same time, the dynamic expansion of the gas path adjustment and signal range is achieved with the help of a control method.

[0042] Most of the current non-invasive blood pressure measurement systems only have one adult deflation valve and air circuit, and one neonatal deflation valve and air circuit. Especially for neonatal applications, the aperture is too small. Therefore, in this application, a neonatal deflation valve and air circuit are added, and the deflation mechanism is adjusted to perform rotational replacement of the two neonatal-specific deflation valves to enhance the reliability and life of the deflation system, prevent blockage problems caused by long-term use, and enhance the working reliability and service life of the entire system.

[0043] At the same time, based on two deflation valves for neonates, a deflation mode for pediatric measurement is designed, and a control circuit is added to control the synchronous deflation of the two valves. The two valves are controlled by a single switch tube, and the mode setting is completed by opening the single valve switch tube, so that the two valves can be controlled separately, thereby realizing the measurement of pediatric applications. Based on the same hardware conditions, blood pressure measurement in more measurement modes can be realized.

[0044] like Figure 1 and Figure 2 As shown, an embodiment of a blood pressure measurement control device for controlling a blood pressure measurement process includes a main controller, an airbag A, an airbag B, an airbag C, an air pump, a pressure sensor, an air release valve A, an air release valve B and an air release valve C; in adult mode, i.e., mode A, the air pump is connected to the air inlet end of the adult airbag, i.e., airbag A, and the air release valve A is connected to the air outlet end of the airbag A; the pressure sensor is connected to the airbag A; the pressure sensor, the air pump and the air release valve A are all electrically connected to the main controller; the air pump receives an inflation signal from the main controller to inflate the airbag A; the pressure sensor is used to detect the pressure information in the airbag A, and converts the pressure information received on the pressure sensor into a pressure signal and transmits it to the main controller; the air release valve A is used to receive the air release signal from the main controller and deflate the airbag A; the main controller is used to receive the pressure signal and calculate the blood pressure value according to the pressure signal.

[0045] In the neonatal mode, i.e., mode B, the air pump is connected to the air inlet end of the air bag B, and the deflation valve B is connected to the air outlet end of the air bag B; the pressure sensor is connected to the air bag B; the pressure sensor, the air pump, and the deflation valve B are all electrically connected to the main controller; the air pump receives the inflation signal from the main controller to inflate the air bag B; the pressure sensor is used to detect the pressure information in the air bag B, and convert the pressure information received on the pressure sensor into a pressure signal and transmit it to the main controller; the deflation valve B is used to receive the deflation signal from the main controller and deflate the air bag B; the main controller is used to receive the pressure signal and calculate the blood pressure value based on the pressure signal.

[0046] In the pediatric mode, i.e., C mode, the air pump is connected to the air inlet end of the airbag C, and the deflation valve B is connected to the air outlet end of the airbag C; the deflation valve C is connected to the air outlet end of the airbag C; the pressure sensor is connected to the airbag C; the pressure sensor, the air pump, the deflation valve B and the deflation valve C are all electrically connected to the main controller; the air pump receives the inflation signal from the main controller to inflate the airbag C; the pressure sensor is used to detect the pressure information in the airbag C, and convert the pressure information received on the pressure sensor into a pressure signal and transmit it to the main controller; the deflation valve B and the deflation valve C are used to simultaneously receive the deflation signal from the main controller and deflate the airbag C; the main controller is used to receive the pressure signal and calculate the blood pressure value based on the pressure signal.

[0047] In the neonatal mode, i.e., mode B, the deflation valve is deflation valve B, and the deflation rate range of deflation valve B is 2 mmHg / sec-4 mmHg / sec. In the pediatric mode, i.e., mode C, the deflation valve includes deflation valve B and deflation valve C, and the deflation rate range of deflation valve B is 3 mmHg / sec-5 mmHg / sec, and the deflation rate range of deflation valve C is 2 mmHg / sec-4 mmHg / sec. Deflation valve B and deflation valve C are used to deflate the external air bag at the same time.

[0048] In the neonatal mode, i.e., mode B, the external airbag is a neonatal airbag, i.e., airbag B, and the deflation valve includes deflation valve B and deflation valve C. Deflation valve B and deflation valve C are used to deflate the external airbag alternately. In the adult mode, i.e., mode A, the external airbag is an adult airbag, i.e., airbag A, and the deflation valve is an adult deflation valve, i.e., deflation valve A. The deflation speed range of deflation valve A is 5 mmHg / sec-7 mmHg / sec.

[0049] The above-mentioned blood pressure measurement and control device also includes airbag A, airbag B and airbag C; airbag A is an adult airbag with a capacity range of 300mL-500mL; airbag B is a neonatal airbag with a capacity range of 50mL-150mL; airbag C is a pediatric airbag with a capacity range of 100mL-250mL.

[0050] The main controller uses an adaptive control engine to control the operation of the corresponding deflation valve according to the current measurement mode to achieve the selection and matching of the deflation valve; based on the actual deflation rate obtained in real time and the deviation from the target deflation rate, the current deflation rate is automatically adjusted, and the deflation rate is controlled through the switching time of the corresponding valve; for example, when the actual deflation rate is lower than the target deflation rate, the valve opening time is extended to increase the deflation rate; when the actual deflation rate is higher than the target deflation rate, the valve opening time is reduced to reduce the deflation rate; the specific valve switching time control can be based on a PWM switch control signal or other control methods to make the deflation process smooth and the deflation rate control conform to the current measurement mode.

[0051] like Figure 3 and Figure 4 In an embodiment of a blood pressure measurement control method, the blood pressure measurement device based thereon includes a main controller, an air pump, a pressure sensor and a deflation valve; the following steps are included: setting a measurement mode, the measurement mode includes a pediatric mode and a neonatal mode; controlling the inflation and deflation process according to the measurement mode; during the inflation or deflation process, the pressure sensor is used to detect the pressure information in the external air bag, and convert the pressure information received on the pressure sensor into a pressure signal and transmit it to the main controller; the deflation valve is used to receive the deflation signal sent by the main controller and deflate the external air bag; the main controller is used to receive the pressure signal and calculate the blood pressure value according to the pressure signal.

[0052] like Figure 3In an embodiment of a blood pressure measurement control method, in the neonatal mode, i.e., mode B, the external air bag is a neonatal air bag, i.e., air bag B, and the deflation valve is a neonatal deflation valve, i.e., deflation valve B or deflation valve C, and the deflation speed range of deflation valve B or deflation valve C is 2 mmHg / sec-4 mmHg / sec.

[0053] like Figure 4 In an embodiment of a blood pressure measurement control method, in a pediatric mode, i.e., mode C, the external airbag is a pediatric airbag, i.e., airbag C, and the deflation valve includes a deflation valve B and a deflation valve C. The deflation speed range of the deflation valve B is 2 mmHg / sec-4 mmHg / sec, and the deflation speed range of the deflation valve B is 2 mmHg / sec-4 mmHg / sec.

[0054] The utility model will optimize the gas path and control mode through the optimization of the system device, and realize the dual-path control of the gas path and obtain a wide range of dynamic range measurement through hardware optimization, which can not only improve the reliability of measurement in the neonatal mode, but also improve the accuracy and reliability of measurement in the pediatric mode. The new blood pressure measurement control device and method in this application can improve the measurement reliability in the neonatal mode by alternating the two neonatal deflation valves, and realize the blood pressure measurement in the pediatric mode with higher accuracy by means of the double neonatal valves.

[0055] The above are merely embodiments of the present application, and are not intended to limit the scope of application of the present application. Any equivalent structure or equivalent process transformation made using the contents of the application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the scope of protection of the present application.

Claims

1. A blood pressure measurement and control device, characterized in that: Used for blood pressure measurement process control, including a main controller, an air pump, a pressure sensor and at least two air release valves, namely, air release valve B and air release valve C; The air pump is connected to the air inlet end of the external air bag and is used to inflate the external air bag; The deflation valve is used to communicate with the gas outlet end of the external air bag to discharge the gas in the external air bag; The pressure sensor is connected to the external airbag and is used to detect the pressure in the external airbag; The pressure sensor, air pump and air release valve are all electrically connected to the main controller; In the neonatal mode, i.e., mode B, the main controller is used to control the deflation valve B and deflation valve C to selectively connect to the outlet end of the external air bag; In the pediatric mode, namely, the C mode, the main controller is used to control the deflation valve B and the deflation valve C to be connected to the outlet end of the external air bag at the same time.

2. The blood pressure measurement control device according to claim 1, characterized in that: Also includes a bleed valve A; In the adult mode, namely mode A, the main controller is used to control the deflation valve A to be connected to the outlet end of the external air bag.

3. The blood pressure measurement control device according to claim 1, characterized in that: In the neonatal mode, ie, mode B, the main controller is used to control the deflation valve B or the deflation valve C to be connected to the outlet end of the external air bag B alternately.

4. The blood pressure measurement control device according to claim 1, characterized in that: Also includes external airbag A, external airbag B and external airbag C; External balloon A is an adult balloon with a capacity range of 250mL-500mL; External balloon B is a neonatal balloon with a capacity range of 30mL-150mL; External balloon C is a pediatric balloon with a capacity range of 120mL-250mL.

5. The blood pressure measurement control device according to claim 1, characterized in that: The apertures of the air release channels of air release valve A, air release valve B and air release valve C are 12mm, 5mm and 5mm respectively.

6. A blood pressure measurement control circuit, characterized in that: It includes air release valve A, air release valve B and air release valve C; It includes a switch tube Q1, a switch tube Q2 and a switch tube Q3; One end of the switch tube Q1 is electrically connected to the air release valve A, and the switch tube Q1 is used to control the switch of the air release valve A; One end of the switch tube Q2 is electrically connected to the air release valve B, and the switch tube Q2 is used to control the switch of the air release valve B; One end of the switch tube Q3 is electrically connected to the air release valve C, and the switch tube Q3 is used to control the switch of the air release valve C; The control end of the switch tube Q1 is used to obtain the switch control signal A of the air release valve A from the outside; The control end of the switch tube Q2 is used to obtain the switch control signal B of the air release valve B from the outside; The control end of the switch tube Q3 is used to obtain the switch control signal C of the air release valve C from the outside.

7. The blood pressure measurement control circuit according to claim 6, characterized in that: One end of the switch tube Q1, one end of the switch tube Q2, and one end of the switch tube Q3 are all electrically connected. The one end is electrically connected to one end of the switch tube Q4, and at the same time, the one end is also electrically connected to one end of the switch tube Q5; The control end of the switch tube Q4 is used to obtain a switch control signal D from the outside; The control end of the switch tube Q5 is used to obtain a switch control signal E from the outside.

8. The blood pressure measurement control circuit according to claim 7, characterized in that: The switch control signal A, the switch control signal B, the switch control signal C, the switch control signal D, and the switch control signal E are used to jointly control the air release valve A, the air release valve B, and the air release valve C; In the adult mode, i.e., mode A, the control signal is used to control the deflation valve A to communicate with the outlet of the external air bag; In the neonatal mode, i.e., mode B, the control signal is used to control the deflation valve B and deflation valve C to selectively connect to the outlet end of the external air bag; In the pediatric mode, ie, the C mode, the control signal is used to control the deflation valve B and the deflation valve C to be connected to the outlet end of the external air bag at the same time.

9. The blood pressure measurement control circuit according to claim 8, characterized in that: In the neonatal mode, ie, mode B, the control signal is used to connect the deflation valve B or the deflation valve C to the outlet end of the external air bag B alternately.

10. The blood pressure measurement control circuit according to claim 8, characterized in that: Also includes a diode D1, a diode D2 and a diode D3; The two ends of the diode D1 are electrically connected to the two ends of the air release valve A respectively; The two ends of the diode D2 are electrically connected to the two ends of the air release valve B respectively; The two ends of the diode D3 are electrically connected to the two ends of the air release valve C respectively; The cathode of the diode D1 is electrically connected to the power supply VCC; The cathode of the diode D2 is electrically connected to the power supply VCC; The cathode of the diode D3 is electrically connected to the power supply VCC.

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