Infusion monitoring system for general surgery nursing of children

Abstract

The invention discloses an infusion monitoring system for general surgery nursing of children. The infusion monitoring system comprises a sensor module, a data collecting and processing module, a monitoring terminal module and a power module. The sensor module monitors key indexes such as the dripping speed, the infusion amount, the infusion pipeline pressure, the blood return condition and vital signs in the child infusion process in real time. The data acquisition and processing module acquires and processes sensor data and judges infusion abnormity; the monitoring terminal module is used for displaying infusion information and alarm prompts and receiving information input by medical staff; the power module provides working power for the system. The system can accurately monitor the infusion process in real time, early warn abnormal conditions in time and integrate the vital sign monitoring function, all-around nursing of child infusion is achieved, operation is easy and convenient, standby power supply guarantee is achieved, the infusion safety and nursing quality of child general surgery nursing are remarkably improved, the infusion risk is reduced, and the safety of children is improved. And a more reliable and precise infusion nursing service is provided for children.

Description

Technical Field

[0001] The present invention relates to the technical field of medical monitoring systems, and in particular to an infusion monitoring system for general surgery care of children. Background Art

[0002] In the field of pediatric general surgery, infusion is a common treatment method. However, compared to adults, children have weaker physical functions and tolerance, and they have higher safety requirements during infusion. Currently, traditional infusion monitoring mainly relies on medical staff to regularly patrol and observe the infusion status, which has many disadvantages:

[0003] The infusion speed is difficult to control accurately. Children may experience unstable infusion speeds due to physical discomfort or emotional fluctuations during the infusion process, and medical staff cannot monitor the infusion speed in real time. Long-term infusion speeds that are too fast or too slow may bring potential medical risks to children, such as increasing the burden on the heart or prolonging treatment time.

[0004] Infusion blockage and blood return cannot be discovered in time. Once blockage occurs, the infusion will be interrupted, affecting the timely delivery of drugs into the child's body to exert its efficacy. In severe cases, it may also cause local tissue damage to the child. Blood return can easily lead to blood contamination and coagulation, increasing the chance of infection or adverse reactions to infusion. Traditional methods can often only detect blockage or blood return when the phenomenon is more serious, delaying the treatment opportunity.

[0005] Ordinary infusion monitoring systems do not adequately consider the applicability to children, a special group. They do not fully consider the physiological characteristics of children, such as usually smaller infusion volumes, shorter infusion times, and greater sensitivity to adverse reactions to infusions. The monitoring accuracy and alarm threshold settings are not precise enough to meet the refined needs of general surgical care for children.

[0006] There is a lack of synchronous monitoring of changes in children's vital signs during the infusion process, and it is impossible to comprehensively analyze and evaluate the infusion situation and the child's current physical condition. It is difficult to timely detect abnormal changes in the child's body that may be caused by the infusion, and there are safety risks in nursing.

[0007] Therefore, in view of the special circumstances of pediatric general surgery care and the shortcomings of existing infusion monitoring methods, it is urgent to design a special infusion monitoring system for pediatric general surgery care to improve the safety and care quality of pediatric infusion. Summary of the Invention

[0008] The purpose of the present invention is to provide an infusion monitoring system for general surgery care of children.

[0009] To achieve the above object, the present invention is implemented according to the following technical solutions:

[0010] The present invention includes a sensor module, a data acquisition and processing module, a monitoring terminal module and a power supply module. The sensor module is used to monitor the drip rate, infusion volume, infusion line pressure, blood return and vital signs of children in real time during the infusion process; the data acquisition and processing module is used to collect sensor data and process and analyze it to determine whether an abnormality occurs in the infusion process. The data acquisition and processing module is connected to the sensor module. The monitoring terminal module is used to display infusion monitoring information and alarm information, and receive child information and infusion plans input by medical staff. The monitoring terminal module is connected to the data acquisition and processing module. The power supply module provides working power for the infusion monitoring system for general surgery care of children.

[0011] Furthermore, the sensor module includes a drip rate sensor, a liquid volume sensor, a pressure sensor, a blood return sensor, and a vital sign sensor. The drip rate sensor is installed on the infusion tube near the drip bucket for real-time monitoring of the infusion drip rate; the liquid volume sensor is used to measure the remaining liquid amount in the infusion bag or infusion bottle; the pressure sensor is embedded in the infusion line near the child end for monitoring pressure changes in the line; the blood return sensor is installed in the transparent section of the infusion line near the child end for detecting whether blood return occurs in the infusion line; the vital sign sensor is used to monitor the child's heart rate and blood oxygen saturation.

[0012] Specifically, the dripping rate sensor adopts the principle of photoelectric induction, detects the blocking signal when the infusion drops through the infrared transmitting tube and the receiving tube, and calculates the dripping rate.

[0013] The liquid quantity sensor is a weight sensor or a volume sensor. For an infusion bag, the weight sensor is installed on the infusion bag support frame and calculates the infusion volume by measuring the weight change; for an infusion bottle, the volume sensor uses an ultrasonic liquid level sensor or a capacitive liquid level sensor to non-contactly measure the liquid level height in the bottle and convert it into the infusion volume.

[0014] The pressure sensor is a piezoresistive or capacitive pressure sensor, and the measuring range is determined according to the specifications of common infusion pipelines and the infusion pressure range.

[0015] The blood return sensor uses optical transmission or reflection principles to detect blood return, and the detection sensitivity can be adjusted according to the blood viscosity of different children and the material of the infusion pipeline.

[0016] The vital sign sensor includes a heart rate sensor and a blood oxygen saturation sensor.

[0017] Furthermore, the data acquisition and processing module includes a microcontroller, a data storage unit, and a communication interface. The microcontroller is used to control the operation of each sensor, collect sensor data, perform data processing and analysis, and communicate with other modules; the data storage unit is used to store basic information of the child, infusion plan, historical infusion data, and monitoring data; the communication interface is used to transmit data with the host computer and other medical equipment. The microcontroller is based on a chip with an ARMCortex-M series core.

[0018] The monitoring terminal module includes a display screen, an alarm device, and control buttons. The display screen is used to display various information such as infusion speed, infusion volume, remaining infusion volume, estimated infusion completion time, basic information of the child, current monitoring status, and alarm information; the alarm device includes an audible and visual alarm, which is used to issue an alarm when an infusion abnormality or an abnormal vital sign of the child is detected; the control buttons are used to set infusion parameters, threshold alarm values, browse historical data, and pause / continue infusion function operations.

[0019] The power module includes a DC power adapter and a backup battery. The input voltage range of the DC power adapter adapts to common AC power voltage fluctuations, and the output DC voltage is 12V or 24V; the backup battery is a rechargeable lithium battery with automatic charge and discharge management function, and can automatically switch to battery power when the mains power is cut off.

[0020] The beneficial effects of the present invention are:

[0021] The present invention is an infusion monitoring system for general surgery care of children. Compared with the existing technology, the present invention has the following significant technical effects:

[0022] Real-time and accurate monitoring of key indicators during the infusion process, including infusion speed, infusion volume, infusion line pressure and blood return. Its monitoring accuracy is much higher than traditional monitoring methods. It can detect infusion abnormalities in time and issue alarms to ensure the safety of children's infusion, reduce medical risks caused by improper infusion speed, blockage or blood return, and reduce children's discomfort and complication rate during the infusion process.

[0023] Integrating the vital signs monitoring function and combining infusion information with the child's vital signs data provides medical staff with a more comprehensive assessment basis, facilitating timely detection of abnormal physical changes that may occur in children during the infusion process, achieving all-round care for children during the infusion process, improving the overall care level, and ensuring the stability of the child's physiological state during the infusion.

[0024] The system is easy to operate. Medical staff can intuitively view infusion information and alarm prompts through the monitoring terminal and make relevant settings. They can use it without complex operation training. It helps to improve the efficiency and quality of nursing work, allowing medical staff to devote more energy to direct care and attention to children, and optimize the children's infusion nursing process.

[0025] Equipped with a backup power supply, it can ensure the continuity of infusion monitoring work in unexpected situations such as sudden power outages in the hospital, ensure that the children's infusion process is not affected by power outages, avoid infusion safety risks caused by monitoring interruptions, enhance the reliability and stability of the system in complex medical environments, and provide solid protection for children's infusion care. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a system structure principle block diagram of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0028] like Figure 1 As shown: The present invention includes a sensor module, a data acquisition and processing module, a monitoring terminal module and a power supply module. The sensor module is used to monitor the drip rate, infusion volume, infusion line pressure, blood return and vital signs of children in real time during the infusion process; the data acquisition and processing module is used to collect sensor data and process and analyze it to determine whether there is any abnormality in the infusion process. The data acquisition and processing module is connected to the sensor module. The monitoring terminal module is used to display infusion monitoring information and alarm information, and receive child information and infusion plan input by medical staff. The monitoring terminal module is connected to the data acquisition and processing module. The power supply module provides working power for the infusion monitoring system for general surgery care of children.

[0029] Furthermore, the sensor module includes a drip rate sensor, a liquid volume sensor, a pressure sensor, a blood return sensor, and a vital sign sensor. The drip rate sensor is installed on the infusion tube near the drip bucket for real-time monitoring of the infusion drip rate; the liquid volume sensor is used to measure the remaining liquid amount in the infusion bag or infusion bottle; the pressure sensor is embedded in the infusion line near the child end for monitoring pressure changes in the line; the blood return sensor is installed in the transparent section of the infusion line near the child end for detecting whether blood return occurs in the infusion line; the vital sign sensor is used to monitor the child's heart rate and blood oxygen saturation.

[0030] Specifically, the dripping rate sensor adopts the principle of photoelectric induction, detects the blocking signal when the infusion drops through the infrared transmitting tube and the receiving tube, and calculates the dripping rate.

[0031] The liquid quantity sensor is a weight sensor or a volume sensor. For an infusion bag, the weight sensor is installed on the infusion bag support frame and calculates the infusion volume by measuring the weight change; for an infusion bottle, the volume sensor uses an ultrasonic liquid level sensor or a capacitive liquid level sensor to non-contactly measure the liquid level height in the bottle and convert it into the infusion volume.

[0032] The pressure sensor is a piezoresistive or capacitive pressure sensor, and the measuring range is determined according to the specifications of common infusion pipelines and the infusion pressure range.

[0033] The blood return sensor uses optical transmission or reflection principles to detect blood return, and the detection sensitivity can be adjusted according to the blood viscosity of different children and the material of the infusion pipeline.

[0034] The vital sign sensor includes a heart rate sensor and a blood oxygen saturation sensor.

[0035] Furthermore, the data acquisition and processing module includes a microcontroller, a data storage unit, and a communication interface. The microcontroller is used to control the operation of each sensor, collect sensor data, perform data processing and analysis, and communicate with other modules; the data storage unit is used to store basic information of the child, infusion plan, historical infusion data, and monitoring data; the communication interface is used to transmit data with the host computer and other medical equipment. The microcontroller is based on a chip with an ARMCortex-M series core.

[0036] The monitoring terminal module includes a display screen, an alarm device, and control buttons. The display screen is used to display various information such as infusion speed, infusion volume, remaining infusion volume, estimated infusion completion time, basic information of the child, current monitoring status, and alarm information; the alarm device includes an audible and visual alarm, which is used to issue an alarm when an infusion abnormality or an abnormal vital sign of the child is detected; the control buttons are used to set infusion parameters, threshold alarm values, browse historical data, and pause / continue infusion function operations.

[0037] The power module includes a DC power adapter and a backup battery. The input voltage range of the DC power adapter adapts to common AC power voltage fluctuations, and the output DC voltage is 12V or 24V; the backup battery is a rechargeable lithium battery with automatic charge and discharge management function, and can automatically switch to battery power when the mains power is cut off.

[0038] Example:

[0039] Infusion monitoring system for pediatric general surgery care:

[0040] System goal: To provide real-time and accurate infusion monitoring for pediatric general surgery care, timely detect and warn of abnormal conditions during the infusion process, improve infusion safety and nursing quality, reduce the workload of nursing staff, and ensure the smooth progress of the infusion process for children.

[0041] System functions:

[0042] Infusion rate monitoring: A high-precision sensor monitors the infusion drip rate in real time and converts the data into an infusion rate value, which is displayed on the monitoring terminal in units of drops / minute or milliliters / hour. The system also features a drip rate threshold setting function. When the infusion rate deviates from the set threshold (e.g., exceeding or falling below the normal range), an alarm is immediately triggered, prompting medical staff to make timely adjustments.

[0043] Infusion volume monitoring: Utilizing a weight sensor or volume sensor, the system accurately measures the remaining fluid in an infusion bag or bottle, displaying the cumulative infusion volume and remaining volume in real time, allowing medical staff to monitor infusion progress. Based on the preset total infusion volume, the system automatically calculates and displays an estimated infusion completion time, facilitating optimal nursing care arrangements.

[0044] Infusion blockage detection: A pressure sensor is installed in the infusion line to monitor pressure changes in real time. When the infusion line is blocked, the pressure rises sharply. The system promptly detects this change and issues a blockage alarm. Simultaneously, by analyzing the pressure change curve, the location of the blockage (such as needle blockage or mid-line blockage) can be preliminarily determined, providing a reference for medical staff to quickly identify and resolve blockage issues.

[0045] Blood return monitoring: Optical or capacitive sensors are used to detect blood return in the infusion line. Once blood return is detected, an alarm is immediately issued and the time and severity of the occurrence are automatically recorded. The system can be linked to the infusion pump to automatically pause the infusion when blood return occurs, preventing adverse effects of excessive blood backflow on the patient.

[0046] Drug infusion monitoring (for multiple infusions): For situations where multiple medications require alternating infusions, the system automatically identifies and monitors the progress and sequence of each infusion. Upon completion of a medication infusion, it promptly alerts medical staff to switch to the next infusion, ensuring the accuracy and timeliness of medication infusions to avoid misadministration or extended intervals between infusions.

[0047] Patient status monitoring (optional): Integrates vital sign monitoring devices (such as heart rate and blood oxygen saturation sensors) to monitor the patient's vital signs in real time during the infusion process, and displays the data in conjunction with infusion information. If abnormal changes in the patient's vital signs (such as a fast or slow heart rate, decreased blood oxygen saturation, etc.) are detected, combined with a comprehensive analysis of the infusion situation and potentially related to the infusion, an alarm will be issued immediately, providing a basis for timely handling of the patient's emergency.

[0048] System composition:

[0049] Sensor Module:

[0050] Drip rate sensor: Installed on the infusion tube near the drip chamber, this sensor uses a photoelectric sensor to detect occlusion signals from dripping infusion via an infrared transmitter and receiver, and calculates the drip rate. Choose a highly sensitive, anti-interference sensor to ensure accurate measurements under varying ambient lighting conditions and infusion speeds.

[0051] Liquid Volume Sensor: For infusion bags, a weight sensor can be used. Mounted on the bag support, it measures bag weight changes in real time and calculates the infusion volume. For infusion bottles, an ultrasonic or capacitive level sensor can be used to non-contactly measure the liquid level within the bottle and convert it into the infusion volume. Select the appropriate sensor based on the type of infusion container and perform precise calibration to ensure measurement accuracy within ±5%.

[0052] Pressure sensor: Embedded in the infusion line near the patient's end, this piezoresistive or capacitive pressure sensor monitors pressure changes in the line in real time. The pressure sensor's range should be determined based on common infusion line specifications and infusion pressure ranges to ensure accurate detection of pressure increases during blockages. Its accuracy should reach ±2% FS (full scale).

[0053] Blood return sensor: Installed in the transparent section of the infusion line near the patient, it uses optical transmission or reflection to detect blood return. The optical sensor should have high resolution and fast response capabilities to promptly detect even the slightest sign of blood return. Its detection sensitivity can be adjusted based on the patient's blood viscosity and the infusion line material.

[0054] Vital sign sensors (optional): For example, heart rate sensors can use chest strap or finger clip photoelectric sensors, and blood oxygen saturation sensors use finger clip photoelectric sensors. Select sensors that meet medical-grade standards to ensure the accuracy and reliability of measurement data, and their measurement accuracy should meet clinical requirements.

[0055] Data Acquisition and Processing Module: Microcontroller (MCU): As the system's core processor, it is responsible for controlling the operation of each sensor, collecting sensor data, processing and analyzing data, and communicating with other modules. Choose an MCU with high performance, low power consumption, and rich interface resources, such as chips based on the ARM Cortex-M series core, to meet the system's real-time and data processing requirements.

[0056] Data storage unit: used to store basic patient information, infusion plans, historical infusion data, monitoring data, etc. Large-capacity non-volatile memory, such as EEPROM or SD card, can be used to ensure that data is not lost in the event of a power outage, providing data support for medical staff to query and analyze the patient's infusion history.

[0057] Communication Interface: Equipped with multiple communication interfaces, such as USB, RS-485, Wi-Fi, or Bluetooth, the system enables data transmission with a host computer (e.g., a nurse workstation computer, mobile nursing terminal, etc.), facilitating remote monitoring and management of infusion information by medical staff. Furthermore, the system can communicate with other medical devices (e.g., infusion pumps, ECG monitors, etc.) to achieve data sharing and coordinated control.

[0058] Monitoring terminal module:

[0059] Display: A high-resolution, high-brightness LCD or touch screen clearly displays various information, including infusion rate, infusion volume, remaining infusion volume, estimated infusion completion time, basic patient information, and current monitoring status, making it easy for medical staff to view information intuitively. The touch screen can also be used to set infusion parameters, threshold alarm values, and browse historical data, providing a good human-computer interaction experience.

[0060] Alarm devices: These include audible and visual alarms. When the system detects abnormal infusion conditions (such as abnormal infusion rate, blockage, or blood return) or abnormal vital signs in the child, it immediately emits an alarm with varying frequencies and tones, and simultaneously flashes an alarm indicator light to alert medical staff to timely action. The alarm sound should be loud enough (clearly audible in the ward environment) and recognizable, and the color and flashing frequency of the alarm indicator light should comply with medical industry standards to distinguish between different types and severity of alarm events.

[0061] Control buttons: Set necessary physical buttons, such as power switch, mute button, pause / resume infusion button, etc., to facilitate quick operation in special circumstances. Even when the touch screen fails or is inconvenient to operate, the basic control functions of the system can be guaranteed.

[0062] Power module:

[0063] DC power adapter: Provides stable DC power for the system. The input voltage range should adapt to the common AC power voltage fluctuations in hospitals (such as AC100-240V, 50 / 60Hz). The output DC voltage is designed according to the power supply requirements of each module of the system, generally 12V or 24V, to ensure the normal operation of each module.

[0064] Backup battery: Considering emergencies such as power outages in the ward, a large-capacity rechargeable lithium battery is used as a backup power source. The backup battery should have automatic charge and discharge management functions, automatically charging when the mains power is normal and automatically switching to battery power when the mains power is cut off. This ensures that the system can continue to operate for a certain period of time (recommended to be no less than 2 hours) in the event of a power outage, ensuring uninterrupted infusion monitoring.

[0065] Working principle:

[0066] When the child starts the infusion, the medical staff enters the child's basic information (such as name, age, weight, etc.) and the infusion plan (including the name of the infusion drug, the total amount of infusion, the preset infusion speed, etc.) into the monitoring terminal. The system initializes the settings based on the input information and stores the relevant data in the data storage unit.

[0067] The sensor module begins operating. The drip rate sensor monitors the infusion drip rate in real time, the liquid volume sensor monitors changes in the liquid volume in the infusion bag or bottle, the pressure sensor monitors the pressure in the infusion line, the blood return sensor monitors the blood return in the line, and the vital sign sensor (if included) simultaneously monitors vital signs such as the child's heart rate and blood oxygen saturation. Each sensor converts the collected analog signal into a digital signal and transmits it to the data acquisition and processing module through the communication interface.

[0068] The MCU in the data acquisition and processing module processes and analyzes sensor data according to a preset algorithm, calculating real-time infusion rate, cumulative infusion volume, remaining infusion volume, and estimated infusion completion time. It then compares these data with preset thresholds. If it detects abnormal infusion rate, blockage, blood return, or abnormal vital signs, the MCU immediately controls the alarm device to issue an alarm signal, displays detailed alarm information and abnormality prompts on the display, and records the alarm event and related data in the data storage unit.

[0069] Upon receiving the alarm, medical staff rush to the child's side and, based on the abnormal information displayed on the monitoring terminal and the system's auxiliary suggestions (such as determining the location of the blockage and possible treatment measures), take appropriate measures, such as adjusting the infusion rate, checking the infusion line, treating blood return, or providing first aid to the child. During the treatment process, medical staff can view changes in the infusion status in real time through the monitoring terminal to adjust the treatment plan in a timely manner.

[0070] The system continuously monitors the infusion process until it is complete. After the infusion is complete, the system automatically records complete data for the infusion, including infusion time, infusion volume, drip rate curve, abnormal events, and treatment status. Medical staff can query and export this data at any time through the monitoring terminal for analysis and optimization of infusion care plans.

[0071] Technical implementation:

[0072] Sensor Technology: Select high-precision, high-reliability, medical-grade sensors to ensure stable operation in complex medical environments and provide accurate monitoring data. During sensor installation, pay attention to the placement and placement of the sensors to avoid external interference (such as electromagnetic interference and light interference) that could affect measurement accuracy. For example, drip rate sensors should be installed out of direct sunlight and away from electromagnetic radiation sources, using protective measures such as light shields. Pressure sensors should be installed in infusion lines with a good seal to prevent leakage that could affect measurement accuracy.

[0073] Data Processing Algorithm: For infusion rate monitoring, a drip rate calculation algorithm based on time interval measurement is used. By accurately measuring the time intervals between multiple consecutive drips, the average drip rate is calculated and converted into an infusion rate value based on the drip coefficient (determined by the infusion tube specifications). A digital filtering algorithm is also used to process drip rate data to remove short-term drip rate fluctuations caused by accidental factors (such as slight shaking of the infusion tube or slight movement of the child), thereby improving the stability and accuracy of drip rate measurement.

[0074] For infusion volume monitoring, the appropriate measurement model and data conversion algorithm are used depending on the type of liquid volume sensor used. For example, a weight sensor calculates the infusion volume by measuring the real-time weight change of the infusion bag and combining it with the bag's density and shape parameters. For a liquid level sensor, the mathematical relationship between liquid level and infusion volume is used for conversion. Furthermore, compensation algorithms are implemented to improve infusion volume measurement accuracy, taking into account the impact of factors such as temperature and liquid surface tension on measurement results.

[0075] In terms of blockage detection, the system analyzes the pressure curves collected by the pressure sensor and uses feature extraction and pattern recognition algorithms to determine whether a blockage has occurred and its severity. For example, if the pressure in the pipeline rises sharply within a short period of time and exceeds the set blockage threshold, a blockage is determined. Based on characteristics such as the rate and amplitude of the pressure rise, the blockage location is preliminarily estimated.

[0076] The blood backflow monitoring algorithm is primarily based on light intensity change signals detected by optical sensors. When blood backflow occurs, blood enters the transparent section of the infusion line, changing the optical properties there and causing changes in the intensity of transmitted or reflected light. By analyzing the light intensity change signals in real time, using methods such as threshold judgment and signal frequency analysis, the occurrence of blood backflow can be accurately detected and the amount of blood backflow can be estimated based on the degree of light intensity change.

[0077] Vital signs monitoring data processing uses existing mature medical signal processing algorithms, such as heart rate calculation algorithm (based on R-wave detection of electrocardiogram signal or peak detection of photoplethysmography signal), blood oxygen saturation calculation algorithm (based on Lambert-Beer law and analysis of light absorption characteristics of different wavelengths), etc., to ensure the accuracy and reliability of vital signs monitoring data.

[0078] Communication Technology: Wired communication can be used between modules within the system. Serial communication interfaces such as UART and SPI can be used to enable data transmission between the sensor module and the data acquisition and processing module, as well as information exchange between the data acquisition and processing module and the monitoring terminal module. These wired communication methods offer advantages such as fast transmission speeds, strong anti-interference capabilities, and stable connections, ensuring real-time and accurate transmission of data within the system.

[0079] The system can communicate with external devices (such as nurse workstation computers and mobile nursing terminals) using wireless communication technologies such as Wi-Fi or Bluetooth. Select a wireless communication module that meets medical industry standards to ensure the security, reliability, and stability of communication. By establishing a wireless communication network, medical staff can use mobile terminals to view patients' infusion information and receive alarm notifications in real time from anywhere in the ward, improving the flexibility and efficiency of nursing work. At the same time, during the communication process, data encryption technology (such as the AES encryption algorithm) is used to encrypt the transmitted data to prevent data leakage and malicious tampering, protecting the privacy of patients and the security of medical data.

[0080] Alarm technology: Sound and light alarms should be products that meet the requirements of the medical environment. Their sound frequency and tone should be optimized to ensure that medical staff can hear them clearly in the noisy ward environment. Different types of alarm events should have different sound characteristics to facilitate medical staff to quickly identify the alarm type and severity. The color of the alarm indicator light should follow medical industry standards. For example, red indicates a serious alarm (such as infusion blockage, blood return, and other situations that endanger the safety of the child), yellow indicates a general alarm (such as a slight deviation in the infusion speed, nearing the end of the infusion, etc.), and green indicates normal status. The flashing frequency of the indicator light should also be set according to the alarm level to increase the recognition of the alarm.

[0081] To improve the accuracy and effectiveness of alarms, the system can adopt a multi-level alarm mechanism. For example, when the infusion rate deviates slightly from the preset value, a level one alarm (such as a low sound and a slowly flashing indicator light) will be issued to alert medical staff. If the infusion rate continues to deviate or the deviation increases, it will be upgraded to a level two alarm (increased sound and rapidly flashing indicator light), and medical staff must handle it promptly. At the same time, the system has alarm silencing and alarm reset functions. After handling the alarm event, medical staff can press the mute button or operate on the monitoring terminal to eliminate the alarm sound and reset the alarm indicator light status, restoring the system to normal monitoring status.

[0082] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Any technical variations made according to the technical solution of the present invention fall within the protection scope of the present invention.

Claims

1. An infusion monitoring system for pediatric general surgery care, characterized by: It includes a sensor module, a data acquisition and processing module, a monitoring terminal module and a power supply module. The sensor module is used to monitor the drip rate, infusion volume, infusion line pressure, blood return and vital signs of children in real time during the infusion process; the data acquisition and processing module is used to collect sensor data and process and analyze it to determine whether there is any abnormality in the infusion process. The data acquisition and processing module is connected to the sensor module. The monitoring terminal module is used to display infusion monitoring information and alarm information, and receive child information and infusion plans input by medical staff. The monitoring terminal module is connected to the data acquisition and processing module. The power supply module provides working power for the infusion monitoring system for general surgery care of children.

2. The infusion monitoring system for general surgery care of children according to claim 1, characterized in that: The sensor module includes a drip rate sensor, a liquid volume sensor, a pressure sensor, a blood return sensor, and a vital sign sensor. The drip rate sensor is installed on the infusion tube near the drip bucket for real-time monitoring of the infusion drip rate; the liquid volume sensor is used to measure the remaining liquid volume in the infusion bag or infusion bottle; the pressure sensor is embedded in the infusion line near the child end for monitoring pressure changes in the line; the blood return sensor is installed in the transparent section of the infusion line near the child end for detecting whether blood return occurs in the infusion line; the vital sign sensor is used to monitor the child's heart rate and blood oxygen saturation.

3. The infusion monitoring system for general surgery care of children according to claim 2, characterized in that: The dripping rate sensor adopts the principle of photoelectric induction, detects the blocking signal when the infusion drops through the infrared transmitting tube and the receiving tube, and calculates the dripping rate.

4. The infusion monitoring system for general surgery care of children according to claim 2, characterized in that: The liquid quantity sensor is a weight sensor or a volume sensor. For an infusion bag, the weight sensor is installed on the infusion bag support frame and calculates the infusion volume by measuring the weight change; for an infusion bottle, the volume sensor uses an ultrasonic liquid level sensor or a capacitive liquid level sensor to non-contactly measure the liquid level height in the bottle and convert it into the infusion volume.

5. The infusion monitoring system for general surgery care of children according to claim 2, characterized in that: The pressure sensor is a piezoresistive or capacitive pressure sensor, and the measuring range is determined according to the specifications of common infusion pipelines and the infusion pressure range.

6. The infusion monitoring system for general surgery care of children according to claim 2, characterized in that: The blood return sensor uses optical transmission or reflection principles to detect blood return, and the detection sensitivity can be adjusted according to the blood viscosity of different children and the material of the infusion pipeline.

7. The infusion monitoring system for general surgery care of children according to claim 2, characterized in that: The vital sign sensor includes a heart rate sensor and a blood oxygen saturation sensor.

8. The infusion monitoring system for general surgery care of children according to claim 1, characterized in that: The data acquisition and processing module includes a microcontroller, a data storage unit, and a communication interface. The microcontroller is used to control the operation of each sensor, collect sensor data, process and analyze data, and communicate with other modules; the data storage unit is used to store basic information of the child, infusion plan, historical infusion data, and monitoring data; The communication interface is used for data transmission with a host computer and other medical devices, and the microcontroller is based on a chip with an ARM Cortex-M series core.

9. The infusion monitoring system for pediatric general surgery care according to claim 1, characterized in that: The monitoring terminal module includes a display screen, an alarm device, and control buttons. The display screen is used to display various information such as infusion speed, infusion volume, remaining infusion volume, estimated infusion completion time, basic information of the child, current monitoring status, and alarm information; the alarm device includes an audible and visual alarm, which is used to issue an alarm when an infusion abnormality or an abnormal vital sign of the child is detected; the control buttons are used to set infusion parameters, threshold alarm values, browse historical data, and pause / continue infusion function operations.

10. The infusion monitoring system for general surgery care of children according to claim 1, characterized in that: The power module includes a DC power adapter and a backup battery. The input voltage range of the DC power adapter adapts to common AC power voltage fluctuations, and the output DC voltage is 12V or 24V; the backup battery is a rechargeable lithium battery with automatic charge and discharge management function, and can automatically switch to battery power when the mains power is cut off.

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