Intelligent monitoring type integrated negative pressure sputum suction device and working method thereof

Abstract

The invention particularly discloses an intelligent monitoring type integrated negative pressure sputum suction device and a working method thereof. According to the device, a plurality of functional systems are integrated in the main body framework, so that the occupied space is effectively reduced. The core innovation point is that the intelligent monitoring and risk assessment system is integrated with various sensors and can monitor a plurality of key parameter indexes in real time, during working, first-level risks are judged by detecting basic parameters such as blood oxygen and heart rate, then second-level risks are determined by monitoring parameters such as airway pressure, and so on until the risk level is accurately judged; and a coping strategy is formulated accordingly. Meanwhile, the main control system intelligently manages operation of all the modules, it is ensured that the risk assessment and decision module and the basic sign monitoring module are normally opened, and other modules are started according to judgment logic, so that the operation cost is saved, repeated abnormal judgment is avoided, the sputum suction operation process is optimized, the safety, effectiveness and intelligent level of the sputum suction process are improved, and the sputum suction efficiency is improved. And more reliable support is provided for clinical treatment.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to an intelligent monitoring integrated negative pressure sputum suction device and its working method, aiming to optimize the sputum suction operation process, improve the safety, effectiveness and intelligent level of the sputum suction process, and provide more reliable support for clinical treatment. Background Art

[0002] In clinical nursing, sputum suction operation plays a crucial role in maintaining the patency of the patient's airway and preventing complications such as pulmonary infection. However, the existing sputum suction devices have obvious deficiencies. On the one hand, they lack real-time and comprehensive intelligent monitoring functions, making it difficult for medical staff to accurately grasp the key parameters and patient conditions during sputum suction, resulting in unsatisfactory sputum suction effects and even possible harm to patients. On the other hand, the integration degree of the devices is not high, and each component is independent, which not only occupies space but also increases the complexity of operation and is prone to cross-infection. Therefore, it is of great practical significance to develop an integrated negative pressure sputum suction device with intelligent monitoring functions and a set of scientific and reasonable working methods. Summary of the Invention

[0003] In order to solve the defects existing in the above-mentioned prior art, the present invention proposes an intelligent monitoring integrated negative pressure sputum suction device and its working method.

[0004] The technical solution adopted by the present invention is as follows:

[0005] The intelligent monitoring integrated negative pressure sputum suction device includes:

[0006] A main body structure;

[0007] A negative pressure generation and regulation system for generating and regulating negative pressure;

[0008] A sputum suction pipeline and operation component for performing sputum suction operations;

[0009] A sputum collection and treatment system for collecting sputum;

[0010] An intelligent monitoring and risk assessment system for real-time monitoring of various parameters during sputum suction, analyzing and processing them, and judging the risk level;

[0011] A main control system for receiving signals from the intelligent monitoring and risk assessment system and taking corresponding control measures according to the risk level.

[0012] The intelligent monitoring and risk assessment system includes:

[0013] A basic physical sign monitoring module for monitoring the SpO2 and HR indicators of the patient;

[0014] Device and airway parameter monitoring module, used to monitor the airway pressure, sputum suction pressure and flow rate indicators of the patient;

[0015] Sputum characteristic monitoring module, used to monitor the sputum viscosity, color and pH indicators of the sputum;

[0016] Respiration monitoring module, used to monitor the respiration rate, respiration pattern and respiration audio indicators of the patient;

[0017] Risk assessment and decision-making module, which comprehensively monitors the patient's indicator data and calculates the real-time risk level through FMEA or machine learning algorithms.

[0018] The main control system controls the risk assessment and decision-making module and the basic physical sign monitoring module to be always on, and controls the device and airway parameter monitoring module, the sputum characteristic monitoring module and the respiration monitoring module to be always off.

[0019] The basic physical sign monitoring module continuously monitors the SpO2 and HR indicators of the patient. When the patient's basic physical sign indicators are abnormal and the patient shows mild hypoxia, that is, tachycardia, it is determined that the patient has a mild level 1 risk and it is necessary to continue with the next level of risk determination;

[0020] The main control system then controls the device and airway parameter monitoring module to turn on, monitors the airway pressure, sputum suction pressure and flow rate indicators of the patient. If the indicators are normal, it is confirmed that the patient has a level 1 risk, the determination ends, and the corresponding solution strategy is generated; if the indicators are abnormal and the patient shows airway spasm and airway mucosal injury, it is determined that the patient has a moderate level 2 risk and it is necessary to continue with the next level of risk determination;

[0021] The main control system then controls the sputum characteristic monitoring module to turn on, monitors the sputum viscosity, color and pH indicators of the patient. If the indicators are normal, it is confirmed that the patient has a level 2 risk, the determination ends, and the corresponding solution strategy is generated; if the indicators are abnormal and the patient shows airway bleeding and severe infection, it is determined that the patient has a severe level 3 risk and it is necessary to continue with the next level of risk determination;

[0022] The main control system then controls the respiration monitoring module to turn on, monitors the respiration rate, respiration pattern and respiration audio indicators of the patient. If the indicators are normal, it is confirmed that the patient has a level 3 risk, the determination ends, and the corresponding solution strategy is generated; if the indicators are abnormal and the patient shows respiratory failure and complete airway obstruction, it is determined that the patient has a critical level 4 risk, the determination ends, and the corresponding solution strategy is generated.

[0023] The abnormal judgment logics corresponding to the level 1, 2, 3, and 4 risks are as follows:

[0024] Level 1 risk:

[0025] SpO2: < 92%, lasting for more than 5 seconds;

[0026] HR: > 110 beats per minute, lasting for more than 10 seconds;

[0027] Secondary risk:

[0028] Airway pressure: > 25 cmH2O, lasting for more than 3 seconds;

[0029] Suction pressure: > -100 mmHg for adults or > -80 mmHg for children;

[0030] Flow rate: < 10 L / min, lasting for more than 5 seconds;

[0031] Tertiary risk:

[0032] Viscosity: Highly viscous, with a large amount of sputum crust on the inner wall of the suction catheter;

[0033] Color: Red / pink or green;

[0034] pH value: < 7.2 or > 7.5;

[0035] Quaternary risk:

[0036] Respiratory rate RR: > 30 breaths per minute or < 8 breaths per minute, lasting for more than 10 seconds;

[0037] Respiratory pattern: Apneustic breathing or intermittent breathing appears;

[0038] Respiratory sound: Bilateral wheezing or moist rales.

[0039] The intelligent monitoring and risk assessment system further includes a strategy execution module for executing the solution strategies generated for primary, secondary, and tertiary risks. The solution strategies specifically include:

[0040] Primary risk:

[0041] Pause suctioning, increase the oxygen flow rate to 6 L / min, and use nasal catheter oxygen inhalation;

[0042] Observe for 5 minutes. If the SpO2 does not recover to above 95%, send an alarm to notify the doctor;

[0043] Secondary risk:

[0044] Automatically reduce the suction pressure to the safe threshold of -60 to -80 mmHg;

[0045] Adjust the position of the suction catheter to avoid deep penetration into the bronchus;

[0046] Administer salbutamol nebulization;

[0047] Tertiary risk:

[0048] Viscosity III: Increase the amount of airway humidification fluid to 300 mL / h and start high-frequency chest wall oscillation;

[0049] Red sputum: stop suctioning immediately, use hemostatic drugs, and adjust the suction pressure to -40 mmHg;

[0050] Green sputum: start antimicrobial therapy and increase sputum culture;

[0051] Abnormal pH value: adjust the pH value of the humidifying solution to 7.35-7.45, and replace the humidifying solution if necessary;

[0052] Level 4 risk:

[0053] Use endotracheal intubation or mechanical ventilation;

[0054] Notify the critical care team and initiate a multidisciplinary consultation;

[0055] Record the data of the suction process to provide a basis for subsequent investigation.

[0056] A working method of an intelligent monitoring integrated negative pressure sputum suction device is implemented through the negative pressure sputum suction device to monitor key parameters and patient conditions during the sputum suction process in real time, and to implement sputum suction strategies in a targeted manner, thereby optimizing the sputum suction operation process and improving safety, effectiveness and intelligence.

[0057] A storage medium stores a computer program, and when the computer program is run, the working method of the intelligent monitoring type integrated negative pressure sputum suction device is executed.

[0058] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0059] Overall, compared with the existing technology, the intelligent monitoring integrated negative pressure sputum suction device provided by the present invention has achieved a major breakthrough in structural design. It innovatively integrates multiple functional systems into a unified main structure. This design significantly reduces the space occupied by the equipment and makes the overall structure more compact. The collaborative work between the functional modules not only improves the safety and effectiveness of nursing operations, but also provides patients with a more optimized nursing solution.

[0060] One of the core innovations of this device lies in its intelligent monitoring and risk assessment system. This system integrates a variety of high-precision sensors, capable of real-time monitoring of multiple key physiological parameters, including pressure, flow rate, blood oxygen, heart rate, respiratory audio characteristics (such as the frequency and intensity of sonorous rales), and respiratory patterns (such as Cheyne-Stokes respiration, sighing respiration). During the risk assessment process, the system adopts a progressive judgment strategy: First, by detecting basic parameters such as blood oxygen and heart rate, initially judge whether the patient has a primary risk; Subsequently, further monitor parameters such as airway pressure, suction pressure, and flow rate to determine whether there is a secondary risk. This judgment process continues progressively until the specific risk level of the patient is accurately determined. Based on this risk level, the system can quickly formulate and execute corresponding response strategies, thus significantly improving the intelligence level and safety of the suction process.

[0061] In addition, in terms of equipment operation management, the main control system demonstrates a high degree of intelligence and energy conservation. It ensures that the risk assessment and decision-making module and the basic vital sign monitoring module are always in an open state for real-time monitoring of the patient's core physiological indicators. For the equipment and airway parameter monitoring module, sputum characteristic monitoring module, and respiratory monitoring module, they are default to be in a closed state. When a risk assessment is required, the main control system will activate these modules sequentially according to the judgment logic as needed, thus effectively avoiding unnecessary energy consumption, reducing the equipment operation cost, and preventing repetitive abnormal judgment processes, further enhancing the overall efficiency and reliability of the equipment. Brief Description of the Drawings

[0062] The present invention will be described by way of examples with reference to the accompanying drawings, where:

[0063] Figure 1 is the execution flowchart of the intelligent monitoring and risk assessment system in the present invention;

[0064] Figure 2 is the structural schematic diagram of the intelligent monitoring type integrated negative pressure suction device in the present invention;

[0065] Figure 3 is the architecture schematic diagram of the intelligent monitoring and risk assessment system in the present invention. Detailed Description of the Invention

[0066] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part rather than all of the embodiments of this application. The components of the embodiments of this application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents the selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative efforts fall within the scope of protection of this application.

[0067] Embodiment 1

[0068] This embodiment provides an intelligent monitoring integrated negative pressure sputum suction device. Refer to Figure 2 , including:

[0069] The main body framework adopts a highly integrated integrated design, integrating core modules such as a negative pressure generation and regulation system, a sputum suction pipeline and operation components, a sputum collection and treatment system, an intelligent monitoring and risk assessment system, and a main control system into a unified framework. The main body framework is made of high-strength and corrosion-resistant engineering materials (such as stainless steel or special alloys) to ensure the stability and durability of the device during long-term use, while also taking into account lightweight design to improve portability.

[0070] The negative pressure generation and regulation system has a high-performance negative pressure pump built-in as the core negative pressure source, with the characteristics of fast response and stable output. The supporting intelligent pressure regulation module monitors the negative pressure value in real time through a high-precision sensor, and dynamically adjusts the operating state of the negative pressure pump based on preset parameters (such as patient age, condition, etc.) and real-time feedback data to achieve precise closed-loop control of the negative pressure. In addition, the system is equipped with a manual pressure regulation knob and an emergency switch to ensure that medical staff can quickly intervene and adjust the negative pressure parameters in case of intelligent control failure or special clinical scenarios.

[0071] The sputum suction pipeline and operation components include a sputum suction tube, which is made of medical-grade silicone material (such as medical silicone rubber), and its surface is optimized by a smooth treatment process, with both flexibility and biocompatibility, significantly reducing the risk of irritation to the respiratory tract. The front end of the tube body is designed with a multi-side hole structure to ensure uniform suction distribution and effectively prevent blockage. The sputum suction tube is connected to the handle through a standardized quick plug-in interface, supporting single-handed operation and quick replacement. The handle integrates a multi-functional operation panel, including a sputum suction start / stop button, a negative pressure regulation knob, and a status indicator light, providing intuitive operation feedback.

[0072] Sputum collection and processing system, including a sputum collection bucket. The sputum collection bucket is made of transparent high-strength polycarbonate (PC) material, with impact resistance and corrosion resistance characteristics. The barrel body is marked with precise graduations (accuracy ±1 ml), facilitating medical staff to visually evaluate the sputum volume and characteristics. The barrel cover adopts a double-layer sealing structure. The inner layer is designed to prevent overflow, and the outer layer is a snap-lock sealing cover to ensure complete sealing to prevent leakage. The air inlet and outlet are respectively equipped with HEPA-class high-efficiency filters with a filtration efficiency of ≥99.97%, effectively intercepting bacteria and particles to avoid cross-infection.

[0073] Intelligent monitoring and risk assessment system, integrating a variety of sensors, including but not limited to a blood oxygen probe, a heart rate sensor, a pressure sensor, a flow sensor, a sputum property sensor (viscosity sensor, color sensor, pH electrode), a respiration sensor, etc., for real-time monitoring of various parameter indicators during the sputum suction process, and analyzing and processing the indicators to judge the risk level. The blood oxygen probe and heart rate sensor real-time monitor the blood oxygen and heart rate values. The pressure sensor monitors the airway pressure during the sputum suction process, and the flow sensor monitors the gas flow during the sputum suction process. The sputum property sensor analyzes the physical and chemical properties such as the viscosity, color, and pH value of the sputum through principles such as optics and electricity. The respiration sensor monitors the respiratory rate (RR), respiratory pattern, and respiratory audio during the sputum suction process.

[0074] Main control system, the main control system, as the core brain of the device, adopts a microcontroller (MCU) or programmable logic controller (PLC) architecture, responsible for the coordinated control and data interaction of each subsystem., ensuring that the device performs safe and effective sputum suction operations according to the preset logic and risk level. Through real-time monitoring, analysis, and control, the main control system improves the intelligent level of the sputum suction operation, reducing the work burden and operation risk of medical staff.

[0075] In a specific implementation manner, the intelligent monitoring and risk assessment system constructs a comprehensive monitoring system covering the patient's physiological state, equipment operation parameters, and sputum characteristics through multi-dimensional data fusion and intelligent analysis technology, refer to Figure 3 , specifically including the following functional modules:

[0076] Basic vital sign monitoring module, used to monitor the blood oxygen saturation (SpO2) and heart rate (HR) indicators of the patient. One implementable way is as follows;

[0077] Using the principle of Pulse Oximeter, it can collect the absorption spectra of oxyhemoglobin and deoxyhemoglobin at the patient's fingertip or earlobe in real time through a non-invasive optical sensor, calculate the arterial oxygen saturation with an accuracy of ±2% (within the range of 70%-100%). Based on photoplethysmography (PPG) and combined with ECG signal calibration, it provides continuous heart rate data, supports automatic identification of arrhythmias (such as atrial fibrillation, premature beats), and the alarm threshold can be customized (default 60-100 bpm).

[0078] The device and the airway parameter monitoring module are used to monitor the airway pressure, sputum suction pressure and flow rate indicators of the patient. One feasible way is as follows:

[0079] Airway pressure monitoring: It can provide real-time feedback on the airway pressure fluctuations through a pressure sensor (range -50 cmH2O to +50 cmH2O, accuracy ±1 cmH2O), and warn of the risks of airway obstruction or excessive negative pressure.

[0080] Sputum suction pressure monitoring: It is a closed-loop control system independent of the airway pressure. It uses a differential pressure sensor to monitor the negative pressure in the sputum suction pipeline to ensure that the deviation between the actual sputum suction pressure and the set value is ≤5%.

[0081] Flow rate monitoring: It integrates a flow rate sensor (range 0-10 L / min, accuracy ±0.1 L / min) to dynamically analyze the gas flow rate during sputum suction, and assist in judging the sputum viscosity and sputum suction efficiency.

[0082] The sputum characteristics monitoring module is used to monitor the sputum viscosity, color and pH indicators of the sputum. One feasible way is as follows:

[0083] Viscosity monitoring: Based on the rheology principle, it measures the shear stress and flow rate of the sputum in the sputum suction tube through a micro-viscosity sensor, and outputs the viscosity value (unit: mPa·s) to distinguish between thin sputum (<10 mPa·s), moderately viscous sputum (10-50 mPa·s) and viscous sputum (>50 mPa·s).

[0084] Color monitoring: It uses an RGB three-color LED light source and a photosensitive sensor array, and quantifies the sputum color through a color space conversion algorithm (such as the Lab color model) to distinguish normal (light yellow), infected (yellow-green), bleeding (red) and other abnormalities.

[0085] pH monitoring: The micro pH electrode (response time <1 second, accuracy ±0.1 pH unit) provides real-time feedback on the sputum pH to assist in judging lung infections or metabolic abnormalities.

[0086] The respiration monitoring module is used to monitor the patient's respiration rate, respiration pattern and respiration audio indicators. One feasible way is as follows:

[0087] Respiratory Rate (RR) Monitoring: Through an impedance respiratory sensor or a piezoelectric film sensor, combined with a signal processing algorithm (such as Fourier transform), automatically calculate the number of breaths per minute and identify abnormal patterns such as apnea and periodic breathing.

[0088] Respiratory Pattern Monitoring: Based on respiratory waveform analysis, distinguish between normal tidal breathing, Kussmaul breathing, tidal breathing variations, etc., and warn of the risk of respiratory failure.

[0089] Respiratory Audio Monitoring: A high-sensitivity microphone array collects breath sounds, and through Mel Frequency Cepstral Coefficient (MFCC) feature extraction and deep learning models, identify abnormal breath sounds such as crackles and wheezes.

[0090] Risk Assessment and Decision-making Module: Integrate the monitored patient indicator data, and calculate the real-time risk level through FMEA or machine learning algorithms. One implementable method is as follows:

[0091] Multi-modal Data Fusion: Adopt Kalman filtering or particle filtering algorithms to fuse physiological, device, and sputum data with time synchronization, and eliminate sensor noise interference.

[0092] Risk Level Calculation:

[0093] FMEA (Failure Mode and Effects Analysis) Model: Based on a clinical expert knowledge base, establish rules for calculating the Risk Priority Number (RPN), for example:

[0094] High Risk: RPN ≥ 120 (Severity × Occurrence × Detection ≥ 4 × 5 × 6)

[0095] Medium Risk: 80 ≤ RPN < 120

[0096] Low Risk: RPN < 80

[0097] Machine Learning Algorithm: A deep learning model based on the LSTM (Long Short-Term Memory Network) or Transformer architecture, use historical case data to train a risk prediction model, and achieve real-time risk scoring (0 - 100 points).

[0098] Decision Support: Trigger hierarchical warnings according to the risk level (such as automatically pausing sputum aspiration and starting an emergency plan in case of high risk), and at the same time generate a visual risk report to assist medical staff in formulating intervention strategies.

[0099] In a further implementation, the main control system adopts a hierarchical monitoring and risk assessment strategy to optimize system resource utilization and improve risk response efficiency. Refer to Figure 1 and the specific control logic is as follows:

[0100] The main control system controls the risk assessment and decision-making module and the basic vital signs monitoring module to be normally open, and controls the equipment and the airway parameter monitoring module, the sputum characteristic monitoring module and the respiratory monitoring module to be normally closed.

[0101] The basic vital signs monitoring module monitors the patient's SpO2 and HR indicators in real time. When the patient's basic vital signs indicators are abnormal, the patient shows mild hypoxia, i.e., tachycardia, which means that the patient is judged to have a mild first-level risk and needs to proceed to the next level of risk judgment;

[0102] The main control system, i.e. the control equipment and the airway parameter monitoring module, is turned on to monitor the patient's airway pressure, suction pressure and flow indicators. If the indicators are normal, it is confirmed that the patient has a first-level risk, the judgment is completed, and a corresponding solution strategy is generated; if the indicators are abnormal, the patient shows airway spasm (such as wheezing, three-recess sign), airway mucosal damage (a small amount of bleeding), it is determined that the patient has a moderate second-level risk, and it is necessary to continue to the next level of risk judgment;

[0103] The main control system controls the sputum characteristic monitoring module to start, monitors the patient's sputum viscosity, color and pH index. If the index is normal, it is confirmed that the patient has a secondary risk, the judgment is completed, and a corresponding solution strategy is generated; if the index is abnormal, the patient shows airway bleeding (blood or fresh blood in the sputum), severe infection (such as fever, purulent sputum), it is determined that the patient has a severe third-level risk, and it is necessary to continue to the next level of risk judgment;

[0104] The main control system controls the respiratory monitoring module to start, and monitors the patient's respiratory rate (RR), respiratory pattern (such as tidal respiration, intermittent respiration), and respiratory audio (such as wheezing, moist rales) indicators. If the indicators are normal, it is confirmed that the patient has a third-level risk, the judgment is ended, and a corresponding solution strategy is generated; if the indicators are abnormal, the patient shows respiratory failure (such as confusion, cyanosis), and complete airway obstruction (such as suffocation), which means that the patient is judged to have a fourth-level risk of crisis, the judgment is ended, and a corresponding solution strategy is generated.

[0105] Through the above-mentioned progressive judgment method, the patient risk level can be judged accurately and efficiently during the suction process, and the solution strategy can be activated in a targeted manner to improve the intelligence and safety of the suction process; at the same time, the main control system controls the risk assessment and decision-making module and the basic vital signs monitoring module to be normally open, and controls the equipment and the airway parameter monitoring module, the sputum characteristics monitoring module and the respiratory monitoring module to be normally closed. During the risk judgment process, the airway parameter monitoring module, the sputum characteristics monitoring module and the respiratory monitoring module are turned on in sequence according to the judgment logic, which can avoid powering on unnecessary modules, save equipment operating costs, and avoid repeated abnormal judgment processes.

[0106] In a further embodiment, the abnormal judgment logic corresponding to the indicators in the first, second, third, and fourth levels of risks is as follows:

[0107] First-level risk:

[0108] SpO2: < 92%, lasting for more than 5 seconds;

[0109] HR: > 110 beats per minute, lasting for more than 10 seconds;

[0110] Second-level risk:

[0111] Airway pressure: > 25 cmH2O, lasting for more than 3 seconds;

[0112] Suction pressure: > -100 mmHg (for adults) or > -80 mmHg (for children);

[0113] Flow rate: < 10 L / min, lasting for more than 5 seconds;

[0114] Third-level risk:

[0115] Viscosity: Grade III (highly viscous, with a large amount of sputum crust on the inner wall of the suction catheter);

[0116] Color: Red / pink (indicating bleeding) or green (indicating Pseudomonas aeruginosa infection);

[0117] pH value: < 7.2 (acidic environment, bacterial infection) or > 7.5 (alkaline environment, airway dryness);

[0118] Fourth-level risk:

[0119] Respiratory rate RR: > 30 breaths per minute or < 8 breaths per minute (lasting for more than 10 seconds);

[0120] Respiratory pattern: Appearance of Cheyne-Stokes respiration or Biot respiration;

[0121] Respiratory audio: Bilateral wheezing or moist rales.

[0122] In a further embodiment, the intelligent monitoring and risk assessment system further includes a strategy execution module for executing the solution strategies generated for the first, second, and third levels of risks. The solution strategies specifically include:

[0123] First-level risk:

[0124] Pause suctioning, increase the oxygen flow rate to 6 L / min (nasal catheter oxygen inhalation);

[0125] Observe for 5 minutes. If the SpO2 does not recover to above 95%, send an alarm to notify the doctor;

[0126] Second-level risk:

[0127] Automatically reduce suction pressure to a safe threshold (-60 to -80 mmHg);

[0128] Adjust the position of the suction tube to avoid penetrating into the bronchus;

[0129] Activate emergency plan for airway spasm (eg, administer nebulized albuterol);

[0130] Level 3 risk:

[0131] Viscosity III: Increase the amount of airway humidification fluid to 300 mL / h and start high-frequency chest wall oscillation (HFCWO);

[0132] Red sputum: stop suctioning immediately and start the emergency plan for airway bleeding (such as using hemostatic drugs and adjusting the suction pressure to -40 mmHg);

[0133] Green sputum: start antimicrobial therapy (eg, piperacillin-tazobactam) and increase sputum culture;

[0134] Abnormal pH value: adjust the pH value of the humidifying solution to 7.35-7.45, and replace the humidifying solution if necessary;

[0135] Level 4 risk:

[0136] Immediately initiate advanced life support (such as endotracheal intubation, mechanical ventilation);

[0137] Notify the critical care team and initiate a multidisciplinary consultation;

[0138] Record the data of the suction process to provide a basis for subsequent investigation.

[0139] Example 2

[0140] A working method of an intelligent monitoring integrated negative pressure sputum suction device is implemented by the negative pressure sputum suction device to monitor key parameters and patient conditions in the sputum suction process in real time, and implement sputum suction strategies in a targeted manner to optimize the sputum suction operation process and improve safety, effectiveness and intelligence. An implementable method is as follows:

[0141] 1. Equipment initialization: Before using the device, medical staff need to initialize the device. After the power is turned on, the device automatically performs a self-check to check whether each system is working properly. At the same time, medical staff can set the relevant parameters of sputum suction on the operation interface according to the patient's condition and treatment plan, such as negative pressure range, sputum suction time, etc.;

[0142] 2. Suction operation: insert the suction tube into the patient's respiratory tract, start the suction device, and the intelligent monitoring and risk assessment system collects data in real time, and determines whether the suction process is normal based on the data. If it is abnormal, determine the risk level, and formulate and implement corresponding solution strategies based on the risk level;

[0143] 3. Data recording and analysis: The device stores the collected data to form suction records, which include suction time, negative pressure value, flow value, sputum properties, etc. Medical staff can query historical suction records through the operation interface to understand the patient's condition changes and suction effects. At the same time, the device can also upload data to the hospital's information management system to provide a reference for doctors to formulate treatment plans;

[0144] 4. Equipment cleaning and maintenance: After the suction operation, medical staff need to clean and maintain the equipment. First, remove the suction tube from the suction handle and replace or clean and disinfect it. Then, start the automatic cleaning program of the equipment and clean the equipment by injecting cleaning fluid into the collection bucket and negative pressure pipeline. After cleaning, rinse with clean water and dry it. Regularly conduct a comprehensive inspection and maintenance of the equipment to ensure its normal operation.

[0145] Example 3

[0146] A storage medium having a computer program stored thereon, wherein the computer program executes the working method of the above-mentioned intelligent monitoring type integrated negative pressure sputum suction device when it is run, and the storage medium is solidified with an application program. Non-volatile memory may include read-only memory, magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory or external cache memory. As an illustration and not limitation, RAM may be in various forms, such as static random access memory or dynamic random access memory, etc.

[0147] It should be noted that the present invention aims to protect the overall inventive concept of an intelligent monitoring integrated negative pressure sputum suction device and a working method. The various functional modules, software and hardware involved in the technical solution are all prior art, and those skilled in the art can implement them according to the records of the prior art, so they will not be elaborated.

[0148] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0149] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Intelligent monitoring integrated negative pressure sputum aspirator device, characterized in that, It includes: Main body framework; Negative pressure generation and regulation system, used to generate and regulate negative pressure; Suction catheter and operation components, used to perform suction operation; Sputum collection and treatment system, used to collect sputum; Intelligent monitoring and risk assessment system, used to monitor various parameters during the suction process in real time, and conduct analysis and processing to judge the risk level; Main control system, used to receive signals from the intelligent monitoring and risk assessment system, and take corresponding control measures according to the risk level.

2. The intelligent monitoring integrated negative pressure sputum suction device according to claim 1, characterized in that The intelligent monitoring and risk assessment system includes: Basic vital sign monitoring module, used to monitor the SpO2 and HR indicators of the patient; Device and airway parameter monitoring module, used to monitor the airway pressure, suction pressure and flow rate indicators of the patient; Sputum characteristic monitoring module, used to monitor the sputum viscosity, color and pH indicators of the sputum; Respiration monitoring module, used to monitor the respiration rate, respiration pattern and respiration audio indicators of the patient; Risk assessment and decision-making module, comprehensively monitoring the patient's indicator data, and calculating the real-time risk level through FMEA or machine learning algorithm.

3. The intelligent monitoring type integrated negative pressure sputum suction device according to claim 2, wherein, The main control system controls the risk assessment and decision-making module and the basic vital sign monitoring module to be always on, and controls the device and airway parameter monitoring module, the sputum characteristic monitoring module and the respiration monitoring module to be always off.

4. The intelligent monitoring integrated negative pressure sputum aspirator device according to claim 3, wherein, The basic vital sign monitoring module monitors the SpO2 and HR indicators of the patient in real time. When the basic vital sign indicators of the patient are abnormal and the patient shows mild hypoxia, that is, tachycardia, it is determined that the patient has a mild level 1 risk, and it is necessary to continue the next level of risk determination; The main control system immediately controls the device and airway parameter monitoring module to be turned on, monitors the airway pressure, suction pressure and flow rate indicators of the patient. If the indicators are normal, it is confirmed that the patient has a level 1 risk, the determination ends, and the corresponding solution strategy is generated; If the indicators are abnormal and the patient shows airway spasm and airway mucosal injury, it is determined that the patient has a moderate level 2 risk, and it is necessary to continue the next level of risk determination; The main control system immediately controls the sputum characteristic monitoring module to be turned on, monitors the sputum viscosity, color and pH indicators of the patient. If the indicators are normal, it is confirmed that the patient has a level 2 risk, the determination ends, and the corresponding solution strategy is generated; If the indicators are abnormal and the patient shows airway bleeding and severe infection, it is determined that the patient has a severe level 3 risk, and it is necessary to continue the next level of risk determination; The main control system immediately controls the respiration monitoring module to be turned on, monitors the respiration rate, respiration pattern and respiration audio indicators of the patient. If the indicators are normal, it is confirmed that the patient has a level 3 risk, the determination ends, and the corresponding solution strategy is generated; If the indicators are abnormal and the patient shows respiratory failure and complete airway obstruction, it is determined that the patient has a critical level 4 risk, the determination ends, and the corresponding solution strategy is generated.

5. The intelligent monitoring integrated negative pressure sputum suction device according to claim 4, wherein, The abnormal judgment logics corresponding to the level 1, 2, 3, and 4 risks are as follows: Level 1 risk: SpO2: <92%, lasting for more than 5 seconds; HR: >110 beats / min, lasting for more than 10 seconds; Level 2 risk: Airway pressure: >25 cmH2O, lasting for more than 3 seconds; Suction pressure: >-100 mmHg / adult or >-80 mmHg g / child; Flow rate: < 10 L / min, lasting for more than 5 seconds; Level 3 risk: Viscosity: Highly viscous, with a large amount of sputum crust on the inner wall of the suction catheter; Color: Red / pink or green; pH value: < 7.2 or > 7.5; Level 4 risk: Respiratory rate RR: > 30 breaths / min or < 8 breaths / min, lasting for more than 10 seconds; Respiratory pattern: Apneustic breathing or Biot's breathing appears; Respiratory sound: Bilateral wheezing or moist rales.

6. The intelligent monitoring integrated negative pressure sputum aspirator device according to claim 4, wherein The intelligent monitoring and risk assessment system further includes a strategy execution module for executing the solution strategies generated for level 1, 2, and 3 risks. The solution strategies specifically include: Level 1 risk: Pause suctioning, increase the oxygen flow rate to 6 L / min, and use nasal catheter oxygen inhalation; Observe for 5 minutes. If the SpO2 does not recover to more than 95%, send an alarm to notify the doctor; Level 2 risk: Automatically reduce the suction pressure to the safe threshold of -60 to -80 mmHg; Adjust the position of the suction catheter to avoid deep penetration into the bronchus; Administer salbutamol nebulization; Level 3 risk: Viscosity grade III: Increase the airway humidification fluid volume to 300 mL / h and start high-frequency chest wall oscillation; Red sputum: Immediately stop suctioning, use hemostatic drugs, and adjust the suction pressure to -40 mmHg; Green sputum: Initiate antibacterial treatment and increase sputum culture; Abnormal pH value: Adjust the pH value of the humidification fluid to 7.35 - 7.45, and replace the humidification fluid if necessary; Level 4 risk: Perform endotracheal intubation or mechanical ventilation; Notify the intensive care team and initiate a multidisciplinary consultation; Record the data during the suctioning process to provide a basis for subsequent investigations.

7. A working method of an intelligent monitoring integrated negative pressure sputum suction device, characterized in that, It is executed by the negative pressure suction device described in any one of claims 1 - 6, used to monitor the key parameters and patient conditions during the suctioning process in real time, and specifically execute the suctioning strategy to optimize the suctioning operation process and improve the safety, effectiveness, and intelligent level.

8. A storage medium, characterized in that, The computer program is stored on the storage medium, and when the computer program is run, it executes the working method of an intelligent monitoring type integrated negative pressure suction device as described in claim 7.

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