A real-time monitoring system for neonatal lungs using multi-sensor fusion technology

Abstract

The present invention relates to the technical field of medical equipment. The present invention provides a real-time monitoring system for neonatal lungs using multi-sensor fusion technology, including a server, a sensor module, a data processing module, an evaluation module, a display and alarm module, and an interactive module. The sensor module collects the respiratory state and blood oxygen saturation state of the neonatal lungs, the data processing module processes the respiratory state and blood oxygen saturation state collected by the sensor module, the evaluation module evaluates the respiratory state and blood oxygen saturation state of the neonate according to the monitoring module processed by the data processing module to form an evaluation result, the display and alarm module triggers an early warning prompt according to the evaluation result, and the interactive module displays the early warning prompt of the alarm module to interactively prompt medical staff. The present invention ensures that the entire system has the advantages of strong monitoring process evaluation capability, good real-time monitoring, high intelligence, and good comfort during the monitoring process through the cooperation of the sensor module and the evaluation module.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a real-time monitoring system for neonatal lungs using multi-sensor fusion technology. Background Art

[0002] Existing neonatal lung monitoring equipment mostly relies on a single type of sensor, which has certain limitations in monitoring accuracy and reliability. When faced with complex physiological changes, a single sensor may not be able to provide comprehensive and accurate data, affecting the effectiveness of medical diagnosis and intervention.

[0003] For example, the prior art CN114522044A discloses a neonatal monitoring device and method for obstetric care. Although the configuration of a sound recognition component and other structures, as well as the configuration of a stethoscope head and a stethoscope body, can facilitate monitoring of the neonatal status and heartbeat, there is a lack of interconnection and interaction between the two monitoring devices, and the requirements for accurate monitoring cannot be met, and comprehensive real-time monitoring of the neonatal lungs cannot be achieved.

[0004] The current equipment and technology used to monitor neonatal lung function have the following main deficiencies:

[0005] 1. Limitations of a single sensor: Many existing monitoring devices usually rely on a single type of sensor, such as a respiratory rate sensor or a blood oxygen saturation sensor. The monitoring data of a single sensor is easily interfered by various factors, such as the body movement of the newborn, environmental changes, etc., resulting in inaccurate monitoring results.

[0006] 2. Insufficient data integration and processing: Existing equipment generally lacks effective data fusion and processing capabilities, making it difficult to extract comprehensive information from multi-sensor data. This limits the efficiency of data utilization and fails to fully reflect the overall health of the newborn's lungs.

[0007] 3. Limited real-time monitoring and early warning capabilities: The current system's real-time monitoring and early warning capabilities are insufficient to detect potential problems with the neonatal respiratory system in a timely manner. Medical staff can only rely on regular inspections and cannot achieve real-time monitoring, which poses potential risks.

[0008] 4. Limitations of data storage and analysis: Many monitoring devices do not have complete data storage and analysis functions, making it difficult to conduct long-term health trend analysis and management. The lack of comprehensive analysis of historical data limits the in-depth understanding of the health status of newborns and the implementation of personalized medicine.

[0009] The present invention is made to solve the common problems in this field, such as poor real-time monitoring, insufficient monitoring process evaluation capability, limited abnormality detection and early warning capability, low intelligence, poor monitoring comfort and insufficient active early warning capability. Summary of the invention

[0010] The purpose of the present invention is to propose a real-time monitoring system for neonatal lungs using multi-sensor fusion technology to address the current deficiencies.

[0011] In order to overcome the shortcomings of the prior art, the present invention adopts the following technical solutions:

[0012] A neonatal lung real-time monitoring system using multi-sensor fusion technology, the neonatal lung real-time monitoring system comprising a server, the neonatal lung real-time monitoring system also comprising a sensor module, a data processing module, an evaluation module, a display and alarm module, and an interaction module, the server is respectively connected to the sensor module, the data processing module, the evaluation module, the display and alarm module, and the interaction module;

[0013] The sensor module collects the respiratory state and blood oxygen saturation state of the neonate's lungs, the data processing module processes the respiratory state and blood oxygen saturation state collected by the sensor module, the evaluation module evaluates the respiratory state and blood oxygen saturation state of the neonate according to the monitoring module processed by the data processing module to form an evaluation result, the display and alarm module triggers an early warning prompt according to the evaluation result, and the interactive module interactively prompts the early warning prompt of the display and alarm module to medical staff;

[0014] The sensor module includes a placement unit, a respiratory rate collection unit and a blood oxygen saturation sampling unit, wherein the placement unit is for placing the newborn, the respiratory rate collection unit collects the respiratory state of the newborn, and the blood oxygen saturation sampling unit collects the blood oxygen saturation state of the newborn;

[0015] The newborn is placed on the placement unit, and cooperates with the respiratory rate collection unit and the blood oxygen protection sampling unit to collect the respiratory state and blood oxygen saturation state of the newborn.

[0016] Optionally, the placement unit comprises a placement chassis, a placement component, a lifting component and a lifting component, wherein the placement component is used to place the newborn, the placement chassis is used to support the placement component, the lifting component is used to lift the newborn, and the lifting component is used to adjust the position of the placement component;

[0017] Wherein, when the respiratory frequency acquisition unit acquires the respiratory status of the newborn, the respiratory frequency acquisition unit is brought into contact with and attached to the chest of the newborn.

[0018] Optionally, the respiratory rate collection unit includes a contact plate, a respiratory rate collection component arranged on the contact plate, and a counterweight component, the contact plate is provided with a storage cavity for placing the counterweight component, and the counterweight component is detachably connected to the storage cavity, and the respiratory rate collection component is arranged on the contact end surface between the contact plate and the chest of the newborn to collect the respiratory status of the newborn.

[0019] Optionally, the blood oxygen saturation sampling unit includes a binding component and a blood oxygen saturation sampling component, the binding component is used to bind the blood oxygen saturation sampling component to the wrist or ankle of the newborn, and the blood oxygen saturation sampling component collects the blood oxygen saturation state of the newborn;

[0020] The binding member comprises a binding belt, a cushioning airbag, an air pump and an electronic deflation valve. The cushioning airbag is arranged on the body of the binding belt and is arranged on the side facing the contact end surface with the newborn. The electronic deflation valve is arranged on the cushioning airbag. The air pump is arranged on the cushioning airbag and discharges the gas in the cushioning airbag.

[0021] Wherein, after the air pump inflates the buffer airbag, the airbag inflates and expands to fix the blood oxygen saturation sampling component at the detection position.

[0022] Optionally, the evaluation module obtains the respiratory state collected by the respiratory rate collection component and the blood oxygen protection state collected by the blood oxygen saturation sampling component, and calculates the respiratory state index Breathe of the newborn according to the following formula:

[0023]

[0024] Wherein, RR is the respiratory rate, and its value is obtained by the respiratory rate acquisition component; SpO2 is the blood oxygen saturation, and its value is obtained by the blood oxygen saturation sampling component;

[0025] If the newborn's respiratory status index Breathe falls within the safety monitoring threshold range set by the system

[0026] [lower_limit, upper_limit] indicates that the newborn's respiratory status meets the system requirements and there are no obvious abnormalities.

[0027] Optionally, the display and alarm module includes an alarm unit and a prompt unit. The alarm unit obtains the evaluation result and compares it with the safety monitoring threshold range set by the system to determine whether to trigger an early warning prompt. The prompt unit triggers prompt signals of different levels according to the early warning prompt of the alarm unit to alert the medical staff.

[0028] Optionally, the interaction module includes a vibration component, a wearing component, and a communication transmission component. The wearing component is used to wear the vibration component on medical staff, and the communication transmission component transmits the warning prompt of the display and alarm module to the vibration component. The vibration component triggers a vibration prompt to remind the medical staff that there is an abnormality.

[0029] Optionally, the lifting member includes a lifting base pad and at least two placement pads, wherein the lifting base pad is for the back of the newborn to contact, and the at least two placement pads are symmetrically arranged on both sides of the lifting base pad to assist in lifting the newborn from both sides and lightly rest on the abdomen and chest of the newborn;

[0030] Wherein, the respiratory frequency collecting components are respectively arranged on at least two placement pads.

[0031] Optionally, the placement component includes a placement bottom plate and at least four auxiliary guard plates, and the at least four auxiliary guard plates are arranged on the periphery of the placement bottom plate and enclose a placement cavity;

[0032] Wherein, the placement cavity is for placing a newborn.

[0033] Optionally, at least two end surfaces of the protective pads that are in contact with the newborn are filled with silicone.

[0034] The beneficial effects achieved by the present invention are:

[0035] 1. Through the cooperation between the sensor module and the evaluation module, the lungs of newborns can be monitored in real time, ensuring that the entire system has the advantages of strong monitoring process evaluation capability, good monitoring real-time performance, high intelligence and good monitoring process comfort;

[0036] 2. Real-time monitoring of the newborn's lungs through the sensor module improves the reliability of the newborn monitoring process, changes the existing defects of measuring and monitoring through sensors with multiple cables, ensures the comfort of the entire newborn patient monitoring process, and ensures that the entire system has the advantages of high monitoring accuracy, strong monitoring capabilities and good monitoring comfort;

[0037] 3. Through the cooperation between the data processing module and the sensor module, the data collected by the sensor module can be pre-processed, improving the real-time monitoring capability of the entire system, and ensuring that the entire system has good monitoring effect, strong real-time monitoring capability and good data processing effect;

[0038] 4. Through the cooperation between the evaluation module and the display and warning module, an early warning can be actively issued during the monitoring process to remind medical staff or managers, ensuring that the entire system has the advantages of strong monitoring capability, good monitoring effect, good real-time early warning triggering, high abnormal detection and early warning protection effect, and high active early warning capability;

[0039] 5. Through the cooperation between the interactive module and the display and alarm module, medical staff can obtain higher interactive comfort, and also improve the accuracy and reliability of neonatal care, ensuring that the entire system has the advantages of good nursing effect, high interactive comfort, good real-time monitoring, strong abnormal detection and alarm capabilities, and high intelligence. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate the same parts.

[0041] Figure 1 It is an overall block diagram of the present invention.

[0042] Figure 2 It is a block diagram of the placement unit, respiratory rate acquisition unit, blood oxygen saturation sampling unit and data processing module of the present invention.

[0043] Figure 3 It is a schematic diagram of the evaluation process of the data processing module and the evaluation module of the present invention.

[0044] Figure 4 It is a front view schematic diagram of the placement unit of the present invention.

[0045] Figure 5 for Figure 4 Schematic cross-sectional view at AA in the middle.

[0046] Figure 6 for Figure 5 A magnified schematic diagram of point B in the middle.

[0047] Figure 7 for Figure 5 Enlarged schematic diagram of point C in the middle.

[0048] Figure 8 It is a side view schematic diagram of the placement unit of the present invention.

[0049] Fig. 9 It is a schematic structural diagram of the lifting component and the lung exploration module of the present invention.

[0050] Fig.10 It is a schematic diagram of the application scenario of the blood oxygen saturation sampling unit and the wrist of a newborn baby of the present invention.

[0051] Fig.11 It is a side view schematic diagram of the blood oxygen saturation sampling unit of the present invention.

[0052] Fig.12 It is a main schematic diagram of the interaction module of the present invention.

[0053] Explanation of the reference numerals: 1. wrist; 2. binding strap; 3. blood oxygen saturation sampling component; 4. cushioning airbag; 5. electronic deflation valve; 6. placement base; 7. auxiliary protective plate; 8. lifting base pad; 9. lifting plate; 10. placement base plate; 11. forehead lifting protrusion; 12. inflatable part; 13. ventilation chamber; 14. action chamber; 15. lung ultrasound device; 16. extension rod; 17. placement pad; 18. lifting track; 19. lifting rod; 20. respiratory rate collection component; 21. fixing seat; 22. pressure sensor; 23. connecting rod; 24. limit mortise. DETAILED DESCRIPTION

[0054] The following is an explanation of the embodiments of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual sizes. It is stated in advance. The following embodiments will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0055] Embodiment 1: According to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, this embodiment provides a neonatal lung real-time monitoring system using multi-sensor fusion technology, the neonatal lung real-time monitoring system includes a server, the neonatal lung real-time monitoring system also includes a sensor module, a data processing module, an evaluation module, a display and alarm module, and an interactive module, the server is respectively connected to the sensor module, the data processing module, the evaluation module, the display and alarm module, and the interactive module, and the intermediate data and process data of the sensor module, the data processing module, the evaluation module, the display and alarm module, and the interactive module are stored in the server for query or call;

[0056] The sensor module collects the respiratory state and blood oxygen saturation state of the neonate's lungs, the data processing module processes the respiratory state and blood oxygen saturation state collected by the sensor module, the evaluation module evaluates the respiratory state and blood oxygen saturation state of the neonate according to the monitoring module processed by the data processing module to form an evaluation result, the display and alarm module triggers an early warning prompt according to the evaluation result, and the interactive module interactively prompts the early warning prompt of the display and alarm module to medical staff;

[0057] The neonatal lung real-time monitoring system also includes a central processor, which is respectively connected to the sensor module, the data processing module, the evaluation module, the display and alarm module, and the interactive module, and centrally controls the sensor module, the data processing module, the evaluation module, the display and alarm module, and the interactive module based on the central processor, and stores the control data in the database of the server to improve the accuracy and reliability of the entire system for neonatal lung health;

[0058] The sensor module includes a placement unit, a respiratory rate collection unit and a blood oxygen saturation sampling unit, wherein the placement unit is for placing the newborn, the respiratory rate collection unit collects the respiratory state of the newborn, and the blood oxygen saturation sampling unit collects the blood oxygen saturation state of the newborn;

[0059] The newborn is placed on the placement unit, and cooperates with the respiratory rate collection unit and the blood oxygen protection sampling unit to collect the respiratory state and blood oxygen saturation state of the newborn;

[0060] Optionally, the respiratory rate collection unit includes a contact plate, a respiratory rate collection component 20 disposed on the contact plate, and a weight component, the contact plate is provided with a storage cavity for the weight component to be placed, and the weight component is detachably connected to the storage cavity, and the respiratory rate collection component 20 is disposed on the contact end surface between the contact plate and the chest of the newborn to collect the respiratory state of the newborn;

[0061] The weight component includes at least one weight block, and the weight block is used to adjust the contact force between the respiratory rate collection component 20 and the chest and abdomen of the newborn to improve the collection accuracy of the respiratory rate collection component 20;

[0062] The respiratory frequency collection component 20 includes a flexible binding, a piezoelectric sensor, and a buffer pad, wherein the flexible binding is used to fix the piezoelectric sensor, the piezoelectric sensor collects the respiratory state of the newborn, and the buffer pad is arranged on the contact end surface between the contact plate and the newborn to improve the comfort of skin contact;

[0063] The piezoelectric sensor is fixed to the chest or abdomen of the newborn by using a flexible strap to ensure that the sensor will not be displaced due to the newborn's movement;

[0064] In this embodiment, the data processing module processes the respiratory state data collected by the respiratory frequency collection unit and the blood oxygen saturation state data of the blood oxygen saturation sampling unit;

[0065] Specifically: the data processing module processes the respiratory state data collected by the respiratory frequency collection unit in the following steps:

[0066] S1. Signal acquisition: The voltage signal V(t) output by the piezoelectric sensor changes with time. These signals will show periodic fluctuations, representing the expansion and contraction of the chest; where the voltage signal output by the piezoelectric sensor changes with time t;

[0067] S2. Signal processing:

[0068] Filtering: Use a bandpass filter to filter out high-frequency noise and low-frequency interference, retaining only the frequency band related to breathing rate (generally 0.2Hz to 3Hz);

[0069] Amplification: Amplify the output signal of the sensor to enhance the signal strength for subsequent processing;

[0070] Among them, V(t) is bandpass filtered and amplified to obtain the processed signal V filtered (t);

[0071] S3. Signal analysis:

[0072] Peak detection: By detecting the peak value of the voltage signal, the starting point and end point of each breathing cycle are identified; each complete peak and trough corresponds to one breath; among them, identifying V filtered Each peak (maximum value) and trough (minimum value) in (t) records its time point t1, t2, t3, ..., t n ;

[0073] Cycle calculation: measure the time interval between two adjacent peaks or troughs, and calculate the time interval T between two adjacent peaks or troughs i , that is, T i =t i+1 -t i ;

[0074] S4. Calculation of respiratory rate:

[0075] Respiratory rate (RR) can be calculated by measuring the number of breaths per unit time using the following formula:

[0076]

[0077] Where, T avg is the average period of multiple respiratory cycles, in seconds;

[0078] The average period of multiple breathing cycles is calculated according to the following formula:

[0079]

[0080] Where, T i is the time interval between two adjacent peaks or troughs;

[0081] Through the cooperation between the data processing module and the sensor module, the data collected by the sensor module can be pre-processed, thereby improving the real-time monitoring capability of the entire system and ensuring that the entire system has good monitoring effect, strong real-time monitoring capability and good data processing effect;

[0082] Optionally, the placement unit includes a placement chassis 6, a placement component, a lifting component and a lifting component, wherein the placement component is used to place the newborn, the placement chassis 6 is used to support the placement component, the lifting component is used to lift the newborn, and the lifting component is used to adjust the position of the placement component;

[0083] Wherein, when the respiratory frequency acquisition unit acquires the respiratory state of the newborn, the respiratory frequency acquisition unit is brought into contact with and attached to the chest of the newborn;

[0084] Optionally, the lifting member includes a lifting base pad 8 and at least two placement pads 17, wherein the lifting base pad 8 is for the back of the newborn to contact, and at least two placement pads 17 are symmetrically arranged on both sides of the lifting base pad 8 to assist in lifting the newborn from both sides and lightly rest on the abdomen and chest of the newborn;

[0085] Wherein, the respiratory frequency collecting components 20 are respectively arranged on at least two placement pads 17;

[0086] Optionally, the placement component includes a placement base plate 10 and at least four auxiliary guard plates 7, wherein the at least four auxiliary guard plates 7 are arranged on the periphery of the placement base plate 10 and enclose a placement cavity;

[0087] Wherein, the placement cavity is for placing a newborn baby;

[0088] Optionally, at least two end surfaces of the protective pads 17 that are in contact with the newborn are filled with silica gel;

[0089] like Fig. 9As shown, during the process of measuring the respiratory frequency of the newborn, the respiratory frequency collecting component 20 stacks at least two placement pads 17, and the magnetic suction parts arranged on the placement pads 17 attract each other to form a locking structure, thereby improving the accuracy and reliability of the respiratory frequency;

[0090] The lifting component includes a lifting plate 9, a lifting rail 18, a lifting rod 19, a lifting drive mechanism and a lifting control panel, one end of the lifting plate 9 is connected to the placement base frame 6, and the other end of the lifting plate 9 extends toward a side away from the placement base frame 6, the lifting rail 18 is arranged on the lifting plate 9 and arranged along the length direction of the lifting plate 9, and a side wall of the placement base plate 10 is slidably connected to the lifting rail 18, wherein a hidden cavity is provided on the lifting plate 9 body, and the lifting rod 19 is hidden in the hidden cavity, and one end of the lifting rod 19 is drivingly connected to the lifting drive mechanism to form a lifting portion, and the other end of the lifting rod 19 is connected to the bottom wall of the placement base plate 10, so that the placement base frame 6 slides up and down along the extension direction of the lifting rail 18;

[0091] The lifting part is arranged at the initial part of the hidden cavity, and the initial part is set as the connection between the placing bottom plate 10 and the lifting plate 9;

[0092] Optionally, the blood oxygen saturation sampling unit includes a binding component and a blood oxygen saturation sampling component 3, wherein the binding component is used to bind the blood oxygen saturation sampling component 3 to the wrist 1 or ankle of the newborn, and the blood oxygen saturation sampling component 3 collects the blood oxygen saturation state of the newborn;

[0093] The binding member includes a binding belt 2, a cushioning airbag 4, an air pump and an electronic deflation valve 5. The cushioning airbag 4 is arranged on the body of the binding belt 2 and is arranged on the side facing the contact end surface with the newborn. The electronic deflation valve 5 is arranged on the cushioning airbag 4. The air pump is arranged on the cushioning airbag 4 and discharges the gas in the cushioning airbag.

[0094] Wherein, after the air pump inflates the buffer airbag 4, the inflatable airbag inflates and expands to fix the blood oxygen saturation sampling component 3 at the detection position;

[0095] Wherein, the blood oxygen saturation sampling component 3 is arranged on the contact end surface of the binding belt 2 and the wrist 1 or ankle of the newborn;

[0096] The blood oxygen saturation sampling component 3 includes a pulse oximeter sensor and a data storage device. The pulse oximeter sensor collects the blood oxygen saturation status data of the newborn, and the data storage device stores the blood oxygen saturation status data collected by the pulse oximeter sensor.

[0097] Among them, the pulse oximeter uses photoplethysmography (PPG), which detects changes in light absorption by penetrating the skin and blood vessels with red and infrared light. Since oxygenated hemoglobin and reduced hemoglobin absorb light of different wavelengths differently, the sensor can calculate blood oxygen saturation.

[0098] The pulse oximeter sensor includes a light source (light emitting diode, LED) and a photodetector (photosensitive diode or photomultiplier tube). The light source emits red light and infrared light, which penetrate the skin and blood vessels of the newborn, and the photodetector receives the transmitted or reflected light signal. Specifically, the light source of the pulse oximeter emits two wavelengths of light (red light and infrared light) which pass through the skin and blood vessels. The photodetector detects the intensity of the light after penetration and obtains the absorption change of the light. The amount of light absorbed is related to the concentration of oxygenated hemoglobin (HbO2) and reduced hemoglobin (Hb) in the blood.

[0099] The pulse oximeter sensor converts the received optical signal into an electrical signal, transmits it to the data processing unit, and calculates the blood oxygen saturation (SpO2);

[0100] The steps of processing the blood oxygen status data collected by the blood oxygen saturation sampling unit by the data processing module include:

[0101] S11. Light source emission: LED emits red light (660nm) and infrared light (940nm), penetrating the skin and blood vessels;

[0102] S12, light intensity detection: the photodetector measures the intensity of the red light after penetration I R and infrared light intensity I IR ;

[0103] Where, let the wavelength of red light be λ R , the wavelength of infrared light is λ IR , the light intensity measured by the sensor is I R and I IR , the initial light intensity is I R0 and I IR0 ;

[0104] S13. Absorbance calculation:

[0105] Calculate the absorbance A based on the light intensity R and A IR , specifically: The absorbance (A) calculation formula is as follows:

[0106]

[0107] S14, odds ratio calculation: calculate the odds ratio R;

[0108] Specifically: The odds ratio R is calculated according to the following formula:

[0109]

[0110] S15, blood oxygen saturation calculation: use the empirical formula to calculate SpO2;

[0111] Specifically, by measuring the absorption of red light and infrared light, the ratio R is calculated, and then R is converted into blood oxygen saturation SpO2 using an empirical formula;

[0112] Wherein, the empirical formula is based on experimental data and the empirical formula is usually a linear relationship:

[0113] SpO2=AB·R;

[0114] In the formula, A and B are empirical coefficients, and their specific values ​​are determined by the calibration process;

[0115] In this embodiment, the specific conditions of the value range and value trend of the empirical coefficients A and B include:

[0116] The value range of A: A is generally between 90 and 110;

[0117] The value range of B: B is generally between 20 and 30;

[0118] A value trend: The value of A is usually determined during the calibration process based on the initial settings of the device and the standard reference value; it is usually large and is used to determine the baseline of SpO2;

[0119] B value trend: The value of B is used to adjust the effect of R on SpO2. Its value is small and is used to fine-tune the calculation result of SpO2. It is usually determined based on the light absorption characteristics of different wavelengths and the proportion of hemoglobin in the blood.

[0120] In addition, in this embodiment, examples of values ​​of the empirical coefficients A and B are provided, specifically:

[0121] (1) Neonatal Intensive Care Unit (NICU)

[0122] High precision requirements: In the neonatal intensive care unit, the measurement requirements for blood oxygen saturation are very high, and any slight abnormality needs to be detected in time; the values ​​of A and B are strictly calibrated to ensure high sensitivity and accuracy;

[0123] Neonatal skin light transmittance: Neonatal skin is relatively thin and has good light transmittance, which makes the light absorption characteristics more obvious; higher A values ​​and moderate B values ​​can more accurately reflect subtle changes in blood oxygen levels, then:

[0124] A=105;

[0125] B = 22;

[0126] (2) General Pediatric Ward

[0127] Routine monitoring: In general pediatric wards, blood oxygen saturation monitoring does not require extremely high precision like in intensive care units, but it still needs to be accurate and reliable; the values ​​of A and B are relatively balanced to meet a wider range of monitoring needs;

[0128] Environmental interference: There are many interference factors in the general ward environment, such as light changes and patient activities; a higher B value can enhance the robustness to environmental noise, while a lower A value can adapt to general clinical monitoring needs, then:

[0129] A=100;

[0130] B = 25;

[0131] (3) Home care and portable equipment

[0132] Simplified calibration: In home care and portable devices, the calibration process is relatively simple, and the A and B values ​​need to adapt to a wide range of usage environments and different individual skin characteristics; lower A and B values ​​provide basic accuracy while reducing the complexity of the calibration process, then:

[0133] A=95;

[0134] B = 20;

[0135] In home care, the user of the device may not have professional medical knowledge, and the values ​​of A and B need to ensure that reliable measurement results can be provided under simple operation;

[0136] In summary, different A and B values ​​reflect different calibration requirements and usage scenarios. Those skilled in the art adjust them according to actual usage and input or set them through the human-computer interaction interface. That is, by adjusting the values ​​of A and B, the accuracy and reliability of blood oxygen saturation measurement can be ensured in different environments and applications. This is a technical means well known to those skilled in the art. Those skilled in the art can refer to relevant technical manuals to learn about the technology, so it will not be described one by one in this embodiment.

[0137] The sensor module is used to monitor the lungs of newborns in real time, which improves the reliability of the newborn monitoring process and changes the defects of the existing measurement and monitoring through sensors with multiple cables. It ensures the comfort of the entire newborn patient monitoring process and ensures that the entire system has the advantages of high monitoring accuracy, strong monitoring ability and good monitoring comfort.

[0138] Optionally, the evaluation module obtains the respiratory state collected by the respiratory rate collection component and the blood oxygen protection state collected by the blood oxygen saturation sampling component, and calculates the respiratory state index Breathe of the newborn according to the following formula:

[0139]

[0140] Wherein, RR is the respiratory rate, and its value is obtained by the respiratory rate acquisition component; SpO2 is the blood oxygen saturation, and its value is obtained by the blood oxygen saturation sampling component;

[0141] If the newborn's respiratory status index Breathe falls within the safety monitoring threshold range set by the system

[0142] [lower_limit, upper_limit] indicates that the neonate's respiratory status meets the system requirements and there is no obvious abnormality;

[0143] If the breathing state index breathe of the newborn is less than the lower limit lower_limit of the safety monitoring threshold range set by the system, it means that the breathing state index is lower than the normal lower limit, which may indicate that the breathing rate of the newborn is too low or the blood oxygen saturation is low, and there may be a risk of respiratory depression or hypoxia;

[0144] If the breathing state index breathe of the newborn is greater than the upper limit of the safety monitoring threshold range set by the system, it means that the breathing state index is higher than the normal upper limit, which may indicate that the breathing rate of the newborn is too high or the blood oxygen saturation is abnormally increased, and there may be tachypnea or other respiratory system abnormalities;

[0145] Through the cooperation between the sensor module and the evaluation module, the lungs of the newborn can be monitored in real time, ensuring that the entire system has the advantages of strong monitoring process evaluation capability, good monitoring real-time performance, high intelligence and good monitoring process comfort;

[0146] Optionally, the display and alarm module includes an alarm unit and a prompt unit, the alarm unit obtains the evaluation result and compares it with the safety monitoring threshold range set by the system to determine whether to trigger an early warning prompt, and the prompt unit triggers prompt signals of different levels according to the early warning prompt of the alarm unit to alert the medical staff;

[0147] The alarm unit obtains the evaluation result and compares it with the security monitoring threshold range set by the system, specifically:

[0148] If the breathing state index of the newborn is less than the lower limit lower_limit of the safety monitoring threshold range set by the system, it means that the breathing state index is lower than the normal lower limit, which may indicate that the breathing rate of the newborn is too low or the blood oxygen saturation is low, and there may be a risk of respiratory depression or hypoxia, and the alarm unit needs to trigger an early warning prompt;

[0149] If the breathing state index of the newborn is greater than the upper limit of the safety monitoring threshold range set by the system, it means that the breathing state index is higher than the normal upper limit, which may indicate that the breathing rate of the newborn is too high or the blood oxygen saturation is abnormally increased, and there may be tachypnea or other respiratory system abnormalities, and the alarm unit needs to trigger an early warning prompt;

[0150] The prompt unit obtains the breathing state index breathe, the lower limit lower_limit of the set safety monitoring threshold range, and the upper limit upper_limit of the safety monitoring threshold range set by the system, and triggers different levels of prompt signals Light according to the following formula:

[0151]

[0152] Where △ is a small offset value used to define the range of medium warning;

[0153] In this embodiment, several important considerations and methods for determining the value of the offset value Δ are provided:

[0154] 1) Clinical experience and medical guidelines

[0155] Expert advice: Consult a neonatologist or intensive care unit specialist to understand what range of respiratory status index changes are acceptable during actual monitoring and what changes require warnings or interventions;

[0156] Medical guidelines: Refer to relevant medical guidelines for neonatal care to obtain standard reference values ​​and critical points;

[0157] 2) Data analysis

[0158] Historical data analysis: Analyze the respiratory data of a large number of newborns to determine the normal fluctuation range and abnormal range; determine the Δ value through statistical methods so that it can effectively capture abnormalities while not being too sensitive;

[0159] Individual differences: Considering the individual differences of different newborns, the adaptive Δ value in different situations is determined by classifying and analyzing the data of newborns with different weights, ages and health conditions;

[0160] 3) Equipment accuracy

[0161] Sensor accuracy: Determine the Δ value based on the measurement accuracy and error range of the sensor, ensuring that the Δ value is larger than the device error but small enough to capture clinically meaningful changes;

[0162] Calibration data: Use the device’s calibration data to adjust the Δ value to match the device’s optimal operating range;

[0163] 4) Test adjustment

[0164] On-site test: Test and adjust in actual use, determine the Δ value through test, observe its impact on early warning prompts, and ensure that the Δ value is set reasonably;

[0165] Therefore, in this embodiment, an example of the value of the offset value Δ is provided, specifically:

[0166] Clinical Experience and Medical Guidelines:

[0167] 1) According to expert advice, a change in respiratory status index within ±5 is usually acceptable;

[0168] 2) Data analysis:

[0169] Through historical data analysis, it is found that the normal respiratory state index fluctuation range of most newborns is between ±3 and ±5; in this embodiment, combined with individual differences, the Δ value is finally determined to be 5;

[0170] 3) Equipment accuracy:

[0171] The measurement error range of the sensor is ±1;

[0172] After the equipment is calibrated, make sure the Δ value is set to 5 to effectively avoid false alarms and missed alarms;

[0173] 4) On-site testing and adjustment:

[0174] In the actual monitoring process, 100 newborns were tested to observe the warning effect when the Δ value was 5 to ensure that its setting was reasonable;

[0175] Therefore, in this embodiment, the offset value Δ is set to 5;

[0176] In addition, in this embodiment, the prompt signal Light includes the following prompt signal levels:

[0177] If Light = Green, the prompt signal level is a normal level;

[0178] If Light = Yellow, the prompt signal level is a medium warning;

[0179] If Light = Red, the prompt signal level is a serious warning;

[0180] Through the cooperation between the evaluation module and the display and warning module, an early warning can be actively issued during the monitoring process to prompt medical staff or managers, ensuring that the entire system has the advantages of strong monitoring capability, good monitoring effect, good real-time early warning triggering, high abnormal detection and early warning protection effect, and high active early warning capability;

[0181] Optionally, the interaction module includes a vibration component, a wearing component, and a communication transmission component, the wearing component is used to wear the vibration component on the medical staff, the communication transmission component transmits the early warning prompt of the display and alarm module to the vibration component, and the vibration component triggers a vibration prompt to prompt the medical staff that there is currently an abnormality; the vibration component includes a vibrator and a trigger, the vibrator is used to generate vibration to prompt the medical staff, and the trigger obtains the prompt signal level and triggers the vibrator to vibrate with different lengths according to the prompt signal level;

[0182] The wearing component includes a wearing belt and a wearing seat, the wearing seat is provided with a wearing groove, the wearing groove is used to place the vibration component, the wearing belt is symmetrically arranged on the wearing seat, so as to bind the wearing seat to the wrist 1 or chest of the medical staff;

[0183] Wherein, the wearing belt is detachably connected to the wearing seat;

[0184] The communication transmission component includes a communicator and a signal collector. The signal collector collects the transmission signal of the display and alarm module. When the signal meets the set reception, the communicator receives the early warning prompt of the display and alarm module and transmits it to the vibration component to trigger the vibration component to prompt the medical staff.

[0185] Through the mutual cooperation of the interactive module and the display and alarm module, medical staff can obtain higher interaction comfort, and also improve the accuracy and reliability of neonatal care, ensuring that the entire system has the advantages of good nursing effect, high interaction comfort, good real-time monitoring, strong abnormality detection and alarm capabilities, and high intelligence.

[0186] Embodiment 2: This embodiment should be understood to include all the features of any of the above embodiments, and further improve upon them. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the neonatal lung real-time monitoring system further includes a lung exploration module, and the lung exploration module is used to explore the lungs of the neonate to collect the neonatal lung exploration data;

[0187] The lung exploration module includes a limiting unit and a lung exploration unit, wherein the limiting unit limits the position of the neonate to maintain the neonate in a suitable detection position, and the lung exploration unit explores the lungs of the neonate to obtain the neonate lung exploration data;

[0188] The lung exploration module is arranged in the lifting member, and the lifting bottom plate of the lifting member is provided with an action cavity 14 for the exploration module to perform exploration operation;

[0189] In addition, during the process of exploring the newborn's lungs, the newborn's chest is placed toward the lifting member (prone position) so that the newborn's lungs can be explored through the lung exploration module;

[0190] The limiting unit includes a limiting airbag, an electric pump, and an electronic pressure relief valve. The electric pump inflates the limiting airbag through an inflation tube so that the limiting airbag is inflated and bulges to form an inflation portion 12. The electronic pressure relief valve is arranged on the limiting airbag and discharges the gas in the limiting airbag.

[0191] The inflatable parts 12 are symmetrically arranged on both sides of the head placement area of ​​the lifting base pad 8, so that the inflatable parts 12 on both sides are inflated and bulged to form a neck placement groove;

[0192] At the same time, if Fig. 9 As shown, the lifting base pad 8 is further provided with a forehead lifting protrusion 11, and the forehead lifting protrusion 11 is used to lift the forehead of the newborn so that the newborn is in a suitable detection position;

[0193] The forehead lifting protrusion 11 lifts the forehead of the newborn, so that the face of the newborn has a smooth ventilation cavity 13 to prevent the danger of breathing;

[0194] The neck and head of the newborn are limited by the limiting unit, so that the neck position of the newborn can be assisted in lifting, thereby improving the comfort of lung exploration;

[0195] The lung exploration unit includes a lung ultrasound device 15, a fixed component and a moving component, wherein the fixed component fixes the lung ultrasound device 15, and the moving component moves the fixed component and the lung ultrasound device 15 disposed on the fixed component, so that the lung exploration data of the newborn can be quickly explored and obtained;

[0196] The fixing member includes a fixing seat 21, a connecting rod 23, and a limiting mortise 24, one end of the connecting rod 23 is connected to the fixing seat 21 body, and the other end of the connecting rod 23 is slidably connected to the limiting mortise 24;

[0197] One end of the connecting rod 23 is provided with a limiting protrusion, which is adapted to the limiting cavity of the limiting mortise 24. When the moving member adjusts the position of the fixing seat 21, the connecting rod 23 can limit the position of the fixing seat 21, and the fixing seat 21 will not be offset along the axis direction of the connecting rod 23.

[0198] The moving member includes an extension rod 16, an extension driving mechanism and a telescopic detection member, the telescopic detection member collects the extension amount of the extension rod 16, one end of the extension rod 16 is connected to the side wall of the fixed seat 21, and the other end of the extension rod 16 is drivingly connected to the extension driving mechanism to form an extension portion, and the extension portion is arranged on the side wall of the action chamber 14;

[0199] When the neonate's lungs are being explored, the extension drive mechanism drives the extension rod 16 to reciprocate and retract, so that the lung ultrasound instrument 15 can reciprocate and scrape at the position of the neonate's chest cavity, thereby achieving exploration of the neonate's lungs;

[0200] In addition, during the detection process, it is necessary to apply conductive paste to the detection position of the neonate to improve the quality of ultrasonic detection;

[0201] The lung exploration module is used to explore the lungs of newborns in a prone position, thereby improving the efficiency and quality of the exploration, changing the defect of the existing single detection in a supine position causing resistance in newborns, and also taking into account the comfort of the newborns during the exploration;

[0202] The lung exploration module further includes a shaking collection unit and a shaking analysis unit, wherein the shaking collection unit collects the shaking state of the newborn on the lifting base pad 8, and the shaking analysis unit analyzes the state of the newborn according to the shaking state data collected by the shaking collection unit to form an analysis result, and triggers the control of the lung exploration unit;

[0203] The shaking collection unit includes a data storage device and at least two pressure sensors 22, at least two pressure sensors 22 are arranged on the contact end surface between the newborn and the lifting base pad 8, and collect the contact pressure data between the newborn and the lifting base pad 8, and the data storage device is used to store the contact pressure data collected by the at least two pressure sensors 22;

[0204] The sway analysis unit obtains the sway state data collected by the sway collection unit, and calculates the sway index Shake according to the following formula:

[0205] Shake=e σ ;

[0206] Where σ is the standard deviation of the pressure change rate, and its value is calculated according to the following formula:

[0207]

[0208] Where, dP i / dt is the pressure change rate of the i-th pressure sensor, μ is the average value of the pressure change rate;

[0209] For the pressure change rate dP i / dt is calculated according to the following formula:

[0210]

[0211] In the formula, Δt is the time interval between two adjacent sampling times, P i (t)(i=1,2,...,n) is the pressure value of the i-th pressure sensor at time t, and n is the total number of sensors;

[0212] The average value μ of the pressure change rate is calculated according to the following formula:

[0213]

[0214] Where n is the total number of sensors;

[0215] If the shake index Shake is less than or equal to the system set monitoring threshold safety, it means that the newborn is currently in a state that can be explored, and the lung exploration unit can be allowed to explore the lungs of the newborn;

[0216] If the shake index Shake is greater than the system-set monitoring threshold safety, it means that the newborn is currently in an undetectable state and the detection operation needs to be interrupted immediately;

[0217] The system setting monitoring threshold safety is set by the system or the operator according to the actual situation. This is a technical means well known to those skilled in the art. Those skilled in the art can refer to relevant technical manuals to learn about the technology, so it will not be described in detail in this embodiment.

[0218] Through the mutual cooperation between the lung exploration unit, the sway collection unit and the sway analysis unit, the ultrasonic exploration process of the newborn's lungs is made more accurate, while also taking into account the comfort of the newborn's exploration, thereby preventing pain or discomfort to the newborn, and ensuring that the entire system has the advantages of high accuracy, high intelligence and good comfort in the exploration process.

[0219] The contents disclosed above are only preferred feasible embodiments of the present invention, and do not limit the protection scope of the present invention. Therefore, all equivalent technical changes made using the contents of the present invention specification and drawings are included in the protection scope of the present invention. In addition, the elements therein can be updated as technology develops.

Claims

1. A neonatal lung real-time monitoring system using multi-sensor fusion technology, the neonatal lung real-time monitoring system comprising a server, characterized in that: The neonatal lung real-time monitoring system also includes a sensor module, a data processing module, an evaluation module, a display and alarm module, and an interaction module, and the server is connected to the sensor module, the data processing module, the evaluation module, the display and alarm module, and the interaction module respectively; The sensor module collects the respiratory state and blood oxygen saturation state of the neonate's lungs, the data processing module processes the respiratory state and blood oxygen saturation state collected by the sensor module, the evaluation module evaluates the respiratory state and blood oxygen saturation state of the neonate according to the monitoring module processed by the data processing module to form an evaluation result, the display and alarm module triggers an early warning prompt according to the evaluation result, and the interactive module interactively prompts the early warning prompt of the display and alarm module to medical staff; The sensor module includes a placement unit, a respiratory rate collection unit and a blood oxygen saturation sampling unit, wherein the placement unit is for placing the newborn, the respiratory rate collection unit collects the respiratory state of the newborn, and the blood oxygen saturation sampling unit collects the blood oxygen saturation state of the newborn; The newborn is placed on the placement unit, and cooperates with the respiratory rate collection unit and the blood oxygen protection sampling unit to collect the respiratory state and blood oxygen saturation state of the newborn; The placement unit comprises a placement chassis, a placement component, a lifting component and a lifting component, wherein the placement component is used to place the newborn, the placement chassis is used to support the placement component, the lifting component is used to lift the newborn, and the lifting component is used to adjust the position of the placement component; Wherein, when the respiratory frequency acquisition unit acquires the respiratory state of the newborn, the respiratory frequency acquisition unit is brought into contact with and attached to the chest of the newborn; The respiratory rate collection unit includes a contact plate, a respiratory rate collection component arranged on the contact plate, and a weight component, wherein a storage cavity for placing the weight component is provided on the contact plate, and the weight component is detachably connected to the storage cavity, and the respiratory rate collection component is arranged on the contact end surface between the contact plate and the chest of the newborn to collect the respiratory state of the newborn; The evaluation module obtains the respiratory state collected by the respiratory frequency collection component and the blood oxygen protection state collected by the blood oxygen saturation sampling component, and calculates the respiratory state index Breathe of the newborn according to the following formula: ； Wherein, RR is the respiratory rate, and its value is obtained by the respiratory rate acquisition component; SpO2 is the blood oxygen saturation, and its value is obtained by the blood oxygen saturation sampling component; If the breathing state index Breathe of the newborn falls within the safety monitoring threshold range [lower_limit, upper_limit] set by the system, it means that the breathing state of the newborn meets the system requirements and there is no obvious abnormality; The neonatal lung real-time monitoring system further comprises a lung exploration module, wherein the lung exploration module is used to explore the lungs of the neonate to collect the neonatal lung exploration data; The lung exploration module includes a limiting unit and a lung exploration unit, wherein the limiting unit limits the position of the neonate to maintain the neonate in a suitable detection position, and the lung exploration unit explores the lungs of the neonate to obtain the neonate lung exploration data; The lung exploration module is arranged in the lifting member, and the lifting bottom plate of the lifting member is provided with an action cavity for the exploration module to perform the exploration operation; During the process of exploring the lungs of the newborn, the chest of the newborn is placed toward the lifting member so that the lungs of the newborn can be explored through the lung exploration module; The lung exploration unit includes a lung ultrasound device, a fixed component and a movable component. The fixed component fixes the lung ultrasound device, and the movable component moves the fixed component and the lung ultrasound device disposed on the fixed component, so that the lung exploration data of the newborn can be quickly obtained.

2. The real-time monitoring system for neonatal lungs using multi-sensor fusion technology according to claim 1 is characterized in that: The blood oxygen saturation sampling unit includes a binding component and a blood oxygen saturation sampling component, wherein the binding component is used to bind the blood oxygen saturation sampling component to the wrist or ankle of the newborn, and the blood oxygen saturation sampling component collects the blood oxygen saturation state of the newborn; The binding member comprises a binding belt, a cushioning airbag, an air pump and an electronic deflation valve. The cushioning airbag is arranged on the body of the binding belt and is arranged on the side facing the contact end surface with the newborn. The electronic deflation valve is arranged on the cushioning airbag. The air pump is arranged on the cushioning airbag and discharges the gas in the cushioning airbag. Wherein, after the air pump inflates the buffer airbag, the airbag inflates and expands to fix the blood oxygen saturation sampling component at the detection position.

3. The real-time monitoring system for neonatal lungs using multi-sensor fusion technology according to claim 2 is characterized in that: The display and alarm module includes an alarm unit and a prompt unit. The alarm unit obtains the evaluation result and compares it with the safety monitoring threshold range set by the system to determine whether to trigger an early warning prompt. The prompt unit triggers prompt signals of different levels according to the early warning prompt of the alarm unit to alert the medical staff.

4. The real-time monitoring system for neonatal lungs using multi-sensor fusion technology according to claim 3 is characterized in that: The interactive module includes a vibration component, a wearing component, and a communication transmission component. The wearing component is used to wear the vibration component on medical staff. The communication transmission component transmits the early warning prompt of the display and alarm module to the vibration component. The vibration component triggers a vibration prompt to remind the medical staff that there is currently an abnormality.

5. The real-time monitoring system for neonatal lungs using multi-sensor fusion technology according to claim 4 is characterized in that: The lifting member includes a lifting base pad and at least two placement pads, wherein the lifting base pad is for the back of the newborn to contact, and the at least two placement pads are symmetrically arranged on both sides of the lifting base pad to assist in lifting the newborn from both sides and lightly rest on the abdomen and chest of the newborn; Wherein, the respiratory frequency collecting components are respectively arranged on at least two placement pads.

6. The real-time monitoring system for neonatal lungs using multi-sensor fusion technology according to claim 5 is characterized in that: The placement component includes a placement bottom plate and at least four auxiliary guard plates, wherein the at least four auxiliary guard plates are arranged on the periphery of the placement bottom plate and enclose a placement cavity; Wherein, the placement cavity is for placing a newborn.

7. The real-time monitoring system for neonatal lungs using multi-sensor fusion technology according to claim 6 is characterized in that: At least two end surfaces of the protective pads contacting the newborn are filled with silica gel.

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