Pediatric infusion protection device and use method

Abstract

The invention discloses a pediatric infusion protection device, a using method and a flexible fixing module, the flexible fixing module comprises an antibacterial silica gel buffer layer, an array type pressure sensor and an inflation adjusting unit, and a breathable micro-convex structure is arranged on the inner side of the antibacterial silica gel buffer layer; the array type pressure sensors are embedded into the buffer layer to form 2 * 3 matrix distribution, the inflation adjusting unit comprises a miniature air pump and a multi-cavity air bag, and partition pressure adjustment is achieved through air conveying pipeline connection; the central control module can upload monitoring data such as pressure, temperature and puncture point states to a medical care management terminal through Wi-Fi, centralized management of information of multiple child patients is achieved, and the workload of one-by-one inspection of medical staff is reduced; in addition, the medical staff can remotely send an instruction through the terminal to control the inflation adjusting unit to carry out single-cavity / multi-cavity pressure fine adjustment, the fixing requirement of the child patient after movement can be met without field operation, and the management efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pediatric infusion protection, and in particular to a pediatric infusion protection device and a use method thereof. BACKGROUND

[0002] In pediatric infusion therapy, due to physiological characteristics such as small age, strong mobility and delicate skin, the traditional infusion protection scheme has long-term technical defects in many aspects, and it is difficult to meet the clinical safety and comfort needs. The specific problems are as follows: Insufficient fixation safety and comfort: the existing protection device mostly uses elastic bandage winding or rigid plastic shell fixation. The former is prone to cause local skin pressure to be too high (often more than 30 kPa) due to uncontrollable tightness, which can cause pressure marks, poor blood circulation, and even increase the risk of phlebitis. The latter lacks a buffer structure, and the needle is prone to displacement or falling out when the child moves. In addition, the rigid material has poor skin adhesion and poor air permeability, and long-term wearing can cause skin to be hot and red, especially for children with sensitive skin. At the same time, the traditional fixing component does not integrate an antibacterial function, and when the skin of the infusion site is exposed or in contact with non-antibacterial materials, it is easy to be contaminated by pathogenic bacteria such as Escherichia coli, and the risk of infection is high.

[0003] Lagging monitoring and lack of early warning: during pediatric infusion, medical staff need to frequently inspect the state of the puncture point (such as bleeding, swelling), the local skin temperature of the child (fever may indicate infection or infusion reaction), and the fixation pressure. However, the existing scheme relies on manual visual observation and tactile judgment, which has obvious lagging nature. For example, a small amount of bleeding at the puncture point can only be discovered after several minutes, and early symptoms of infection may have already appeared when the local temperature rises above 38.5℃. Manual inspection cannot achieve continuous monitoring, and gaps in supervision are likely to occur at night or during busy periods for medical staff, increasing the probability of adverse events.

[0004] Low child compliance and operation safety: children generally have a resistance to medical devices, and the traditional protection device has a single appearance and no interactive function, which further exacerbates the fear of children, leading to crying and struggling during infusion, increasing the risk of needle displacement. At the same time, the existing device lacks a dedicated unlocking mechanism, and parents or children may accidentally touch or open the protection shell, causing the needle to be exposed or damaged. Medical staff also need to spend extra time adjusting the fixing structure when operating, reducing the efficiency of infusion preparation.

[0005] Low efficiency of medical management: the existing device has no data transmission and centralized management function, and information such as puncture point abnormalities, pressure exceeding the standard, and temperature abnormalities cannot be synchronized in real time to the medical terminal. Medical staff need to inspect each bed, which not only increases the workload, but also may cause delays in treatment due to delayed information transmission. In addition, the infusion protection parameters of different children cannot be individually adjusted, making it difficult to adapt to the needs of children of different ages and weights, and the universality is poor. SUMMARY

[0006] In order to overcome the deficiencies of the prior art, one of the purposes of the present application is to provide a pediatric infusion protection device and a use method.

[0007] One of the purposes of the present application is achieved by adopting the following technical solutions: A pediatric infusion protection device comprises: A flexible fixing module comprises an antibacterial silica gel buffer layer, an array type pressure sensor and an inflation adjusting unit, the inner side of the antibacterial silica gel buffer layer is provided with a breathable micro-convex structure, the array type pressure sensor is embedded in the inside of the buffer layer to form a 2*3 matrix distribution, and the inflation adjusting unit comprises a micro air pump and a multi-chamber air bag, and the partition pressure adjustment is realized through the air pipeline connection; An intelligent protection module is detachably connected above the flexible fixing module through a magnetic attraction structure, and comprises a transparent PC protection shell, a micro camera and a non-contact temperature sensor, the inner side of the transparent protection shell is provided with an arc-shaped positioning groove matched with an infusion needle, the micro camera is provided with an 850nm infrared fill light, and the sampling frequency of the temperature sensor is 1Hz; A multi-modal interaction module comprises an electronic password lock, an NFC unlocking unit and a cartoon LED display panel, the electronic password lock adopts a 3-digit digital scroll wheel structure, the NFC unlocking unit supports the near field communication authorization of a medical terminal device, and the LED display panel is integrated on the outer side of the protection shell and can display dynamic cartoon patterns; A central control module is electrically connected with the above modules and comprises a microprocessor, a Wi-Fi communication unit and an audible and visual alarm unit, the microprocessor can receive the monitoring data of the pressure sensor, the temperature sensor and the camera, an alarm is triggered when it is detected that the skin pressure is greater than 25kPa, the temperature is greater than 38℃ or the puncture point is abnormal, and the alarm is uploaded to a medical management terminal through Wi-Fi.

[0008] As a further improvement of the above technical solutions: The antibacterial silica gel buffer layer adopts a silver ion antibacterial material, the antibacterial rate of which on escherichia coli is greater than or equal to 99%, and the height of the breathable micro-convex structure is 0.5-1mm, and the distance between adjacent convex points is 2mm.

[0009] The multi-chamber air bag of the inflation adjusting unit is divided into three independent chambers along the length direction of the fixing module, a pressure feedback sensor is arranged in each chamber, and the adjustment accuracy can reach ±1kPa.

[0010] The resolution of the micro camera is 640*480 pixels, the frame rate is 15fps, and the lens viewing angle is 90°, and the built-in image recognition algorithm of the central control module can detect the bleeding and swelling characteristics of the puncture point.

[0011] The cartoon LED display panel adopts a 16*32 dot matrix design, supports switching of at least five preset animation modes, and can display content customized by a medical terminal.

[0012] The central control module further comprises a lithium polymer battery and a wireless charging coil, the battery capacity is 500mAh, supports 10W Qi standard wireless charging, and the continuous working time is ≥8 hours.

[0013] The magnetic attraction structure of the intelligent protection module and the flexible fixing module adopts a neodymium iron boron strong magnetic material, the adsorption force is 3-5N, and the edge of the protective shell is provided with a 0.3mm thick silica gel sealing ring.

[0014] A use method of a pediatric infusion protection device, based on the system of any one of claims 1-7, comprising the following steps: S1: The medical staff unlocks the electronic combination lock by NFC authorization, adheres the flexible fixing module to the infusion site of the child patient, starts the system self-checking and completes the zero point calibration of the pressure sensor; S2: Adjust the initial pressure of the inflation unit to 15-20kPa, position the infusion needle through the transparent protective shell and buckle the magnetic attraction structure, and confirm that the arc-shaped positioning groove completely wraps the needle; S3: Set the electronic combination lock and set the pressure threshold 25kPa and the temperature threshold 38℃ through the central control module, and start the real-time monitoring mode of the camera; S4: During the infusion process, the central control module performs multi-parameter inspection every 5 minutes, and when an abnormality is detected: ① start the sound and light alarm; ② push the alarm information to the medical terminal through Wi-Fi; ③ the LED panel switches to the warning flashing mode; S5: When the fixing strength needs to be adjusted, the medical terminal sends instructions to the central control module, and adjusts the single-cavity or multi-cavity pressure through the inflation adjustment unit, and the adjustment range is ≤5kPa / time; S6: After the infusion is completed, the protection module is opened through NFC unlocking or password input, the system power is turned off and the disinfection process is performed.

[0015] As a further improvement of the above technical solution: The abnormality detection in step S4 includes: ① the pressure sensor continuously exceeds the threshold for 3 sampling points; ② the temperature sensor reads continuously for 10 seconds; ③ the image recognition algorithm determines that the probability of the puncture point is >85%.

[0016] The disinfection process of step S6 requires that the detachable parts are wiped with 75% alcohol, and the flexible fixing module can withstand 134℃ high-pressure steam sterilization.

[0017] Compared with the prior art, the beneficial effects of the present application are: 1. Improve the safety and comfort of fixation, and reduce the risk of infection The flexible fixing module adopts a silver ion antibacterial silica gel buffer layer, and the antibacterial rate of the buffer layer on escherichia coli is greater than or equal to 99%, so that the growth of pathogenic bacteria at the infusion site can be directly inhibited, and the risk of infection can be greatly reduced; the buffer layer is provided with a 0.5-1mm high air permeable micro convex structure (the distance between adjacent convex points is 2mm), which not only ensures the air circulation between the skin and the module to avoid stuffiness, but also reduces the direct contact area of the skin to improve the wearing comfort.

[0018] The inflation adjustment unit is provided with three independent chamber air bags and a pressure regulation with a precision of ±1kPa, the initial pressure can be set to 15-20kPa according to the skin tolerance of the child, and the skin pressure is monitored in real time through an array type pressure sensor (2x3 matrix distribution), an alarm is triggered when the pressure exceeds 25kPa threshold, the blood circulation problem and pressure mark caused by excessive pressure are effectively avoided, and the multi-chamber design can adapt to the curvature of different infusion sites (such as the back of the hand and the arm), improve the fixing and fitting, and reduce the risk of needle displacement.

[0019] 2. Realize multi-dimensional real-time monitoring and intelligent early warning to ensure infusion safety The intelligent protection module is integrated with a non-contact temperature sensor (sampling frequency 1Hz) and a 640x480 pixel miniature camera (90° view angle, 15fps frame rate, equipped with an 850nm infrared fill light), which can continuously monitor the temperature of the infusion site of the child (alarm when the temperature exceeds 38℃ threshold) and the state of the puncture point; the central control module is provided with an image recognition algorithm, which can automatically identify the bleeding and swelling of the puncture point (alarm when the abnormal probability is greater than 85%), and realize 24h uninterrupted monitoring without manual intervention, solving the problem of lagging behind of traditional manual inspection.

[0020] The sound and light alarm unit of the central control module is linked with the Wi-Fi communication function, and local alarm and medical terminal information push can be triggered synchronously when an abnormality occurs, medical staff can obtain the abnormal type (pressure / temperature / puncture point) and the child's bed information in real time, and quickly respond to treatment, which greatly shortens the disposal time of adverse events.

[0021] 3. Improve the compliance of children and ensure the safety of operation The 16x32 dot matrix cartoon LED display panel of the multi-modal interaction module supports five kinds of preset dynamic cartoon patterns and custom content of the medical terminal, reduces the resistance of children to the infusion device through visual attraction, and improves the treatment compliance; at the same time, the device adopts a double authorization mechanism of "electronic combination lock (3-digit digital roller) + NFC unlocking", only medical staff can unlock through terminal near field communication or password, to avoid the opening of the protective shell caused by the misoperation of parents and children, and ensure the safety of the needle.

[0022] 4. Optimize the management efficiency of medical staff and improve the clinical applicability The central control module can upload the monitoring data such as pressure, temperature, puncture point state to the medical care management terminal through Wi-Fi, realize centralized management of multiple children information, reduce the workload of medical personnel for inspection one by one, and medical personnel can also send instructions remotely through the terminal to control the inflation adjustment unit to make single cavity / multi-cavity pressure fine adjustment (adjustment range ≤5kPa / time), without on-site operation, the fixed demand after the activity of children can be adapted, and the management efficiency is improved.

[0023] The intelligent protection module is detachably connected with the flexible fixing module through a neodymium iron boron strong magnetic structure (adsorption force 3-5N), and a 0.3mm silica gel sealing ring is arranged at the edge of the protection shell, which not only ensures the connection stability, but also facilitates disassembly and disinfection (the detachable part is wiped with 75% alcohol, and the flexible module can withstand 134 DEG C high-pressure steam sterilization), so that the medical consumable cost is reduced; meanwhile, the arc positioning groove of the transparent PC protection shell is matched with the needle, so that the medical staff can observe the state of the needle, and the operation convenience is improved.

[0024] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are as follows. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The workflow diagram of the present embodiment is shown in the figure; Figure 2 The infusion process flowchart of the present embodiment is shown in the figure. DETAILED DESCRIPTION

[0026] In the following, the present application is further described in combination with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0027] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there can be a middle component. When a component is referred to as "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example (a) Flexible fixed module configuration Antibacterial silicone buffer layer: Made of silver ion modified medical silicone material, 2mm thick, with a 99.3% antibacterial rate against E. coli as tested by a third party; the inner side has an integrally molded breathable micro-convex structure with a convex point height of 0.8mm (range 0.5-1mm), a center-to-center distance of 2mm between adjacent convex points, and a hexagonal distribution of convex points, which ensures a 0.3-0.5mm breathable gap between the skin and the buffer layer, while reducing the local contact area and lowering the risk of pressure marks.

[0030] Array-type pressure sensor: The FSR402 thin-film pressure sensor is selected and embedded in the buffer layer to form a 2×3 matrix (2 horizontal and 3 vertical). The sensor spacing is 15mm, covering the infusion area on the back of the hand (about 30mm×45mm). It can collect skin pressure at different locations in real time with an accuracy of ±0.5kPa.

[0031] Inflation adjustment unit: The miniature air pump uses a DC3.7V silent air pump (power 1.2W), which is connected to three independent chamber airbags (divided along the length of the back of the hand: proximal wrist chamber, puncture point chamber, and proximal finger chamber) through a Φ2mm medical-grade silicone air delivery tube. Each chamber is equipped with an MPX5010 pressure feedback sensor with an adjustment accuracy of ±0.8kPa (better than the ±1kPa requirement of claim 3). The chamber volume is 5mL, and after inflation, the local pressure can be continuously adjusted within the range of 0-30kPa.

[0032] (II) Configuration of Intelligent Protection Module Transparent PC Protective Shell: Made of food-grade transparent polycarbonate material, 1.5mm thick, with an impact resistance of ≥60kJ / m². 2 An arc-shaped positioning groove (3mm radius, 1.5mm depth) is made on the inner side corresponding to the position of the infusion needle on the back of the hand. A 0.2mm thick medical silicone pad is attached to the groove, which can completely cover the needle seat of the 24G pediatric infusion needle to prevent the needle from shifting. A 0.3mm thick silicone sealing ring is embedded on the edge of the protective shell, which can be dustproof and waterproof (IP64 rating) after being attached to the flexible module.

[0033] Miniature camera and supplementary lighting unit: It uses an OV7725 image sensor with a resolution of 640×480 pixels, a frame rate of 15fps, a lens angle of 90°, and the center of the lens is directly facing the puncture point (15mm away from the puncture point); an 850nm infrared supplementary light (50mW power) is integrated next to the camera, which automatically turns on at night or in low light environment, without visible light stimulation (to avoid the child's fear of light and crying).

[0034] Non-contact temperature sensor: It adopts the MLX90614 infrared temperature sensor with a sampling frequency of 1Hz, a detection distance of 5-10mm, and an accuracy of ±0.2℃. The sensor probe is aligned with the skin area within 10mm around the puncture point to monitor the local skin temperature in real time.

[0035] Magnetic connection structure: Two sets of neodymium iron boron strong magnets (5mm in diameter and 2mm in thickness) are embedded at the bottom of the protective shell and the top of the flexible module. The actual adsorption force is 4.2N. When disassembling, a pulling force of ≥3.5N is required to ensure that the connection is stable (does not fall off when the child moves) and facilitates quick disassembly by medical staff.

[0036] (III) Configuration of Multimodal Interaction Module Electronic combination lock: It adopts a 3-digit roller structure (made of ABS plastic), with a roller diameter of 8mm and engraved with numbers 0-9. The protective shell cannot be removed when locked, and the password can be reset through the medical terminal (to prevent parents from accidentally changing it).

[0037] NFC unlocking unit: Integrated PN532NFC module, supports ISO14443A protocol. Medical staff can unlock the module within 1 second by bringing their mobile phone (or medical PDA) with a dedicated authorized APP close (distance ≤3cm) without entering a password (improving operational efficiency in emergency situations).

[0038] Cartoon LED display panel: Utilizing a 16×32 dot matrix LED screen (30mm×60mm), integrated centrally on the outer side of the protective casing, supporting 5 preset dynamic cartoon patterns (bear receiving IV fluids, rabbit jumping, rainbow animation, etc.), which can be switched via a medical terminal APP; LED brightness ≤50cd / m². 2 (Avoid strong light stimulation to the child's eyes), continuous power consumption ≤100mW.

[0039] (iv) Configuration of the central control module Core hardware: It uses an STM32L476 microprocessor (80MHz main frequency), integrates a Wi-Fi communication unit (ESP8266 module, supporting IEEE802.11b / g / n), a buzzer (audio-visual alarm unit, volume 60dB, frequency 2kHz) and a red LED alarm light; it has a built-in 500mAh lithium polymer battery, supports 10W Qi standard wireless charging, and has a continuous working time of 9.2 hours in actual tests (exceeding the requirement of ≥8 hours).

[0040] Software and Algorithms: The microprocessor has a built-in puncture point anomaly recognition algorithm. Using images captured by the camera, it identifies abnormalities such as "puncture point bleeding (RGB values ​​R > 200, G < 100, B < 100)" and "local swelling (area > 10mm)". 2 The system determines whether the abnormality is greater than 2 mm and triggers an alarm when the probability of abnormality is greater than 85% (in accordance with the supplementary features of claim 8). At the same time, it receives pressure sensor data (sampled once every 0.5 seconds) and temperature sensor data (sampled once every 1 second) in real time. The alarm is activated when the pressure exceeds 25 kPa for 3 consecutive sampling points or the temperature exceeds 38°C for 10 consecutive seconds.

[0041] II. Usage Procedure of the Device in the Example S1: Equipment Preparation and Initial Deployment Medical staff can hold a medical PDA (authorized) close to the NFC area of ​​the multimodal interaction module to unlock the electronic lock within 1 second (replacing manual password input and improving efficiency). Place the inner side (breathable micro-convex structure surface) of the flexible fixation module against the infusion site on the back of the child's hand (the puncture point is located in the center of the module), and press the edge of the module to ensure a tight fit without wrinkles; Press and hold the "Self-Test" button on the central control module for 2 seconds to start the system self-test: the pressure sensor automatically completes zero-point calibration (displays "Pressure Zero OK"), the camera captures the test screen (which can be previewed on the PDA), the temperature sensor collects the ambient temperature (displays "Temperature Reference OK"), and the LED panel displays a "Ready" cartoon icon after the self-test is passed.

[0042] S2: Inflation fixation and needle positioning The central control module sends an "inflation command" via PDA, which drives a micro air pump to inflate the three chambers. The initial pressure is set to 18 kPa (within the range of 15-20 kPa). The pressure of each chamber is displayed in real time during inflation (which can be monitored by the PDA). After inflation is complete, the LED panel displays "Fixing Complete". Take out the intelligent protection module, align the inner arc-shaped positioning groove with the needle hub of the infusion needle on the back of your hand, and gently press to make the magnetic structure adsorb (you will hear a "click" sound indicating that it is in place). Confirm through the transparent protective shell that the needle is not misaligned and that the positioning groove completely covers the needle hub.

[0043] S3: Parameter Setting and Monitoring Startup Turn the 3-digit dial of the electronic combination lock to set the password "123" (for medical staff to record and file). Once completed, the indicator light on the lock will turn green. Set the thresholds in the "Pediatric Infusion Management APP" via PDA: pressure upper limit 25kPa, temperature upper limit 38℃, click "Start Monitoring", the miniature camera starts real-time shooting (frame rate 15fps), and the temperature sensor enters continuous sampling mode.

[0044] S4: Real-time monitoring and abnormal handling during infusion. The central control module performs a multi-parameter inspection every 5 minutes, and the inspection data (pressure, temperature, puncture site image) is uploaded to the PDA and nurse station management terminal via Wi-Fi. During clinical trials, when a child cried and waved their hand, causing the local pressure on the back of their hand to rise to 27 kPa (exceeding 25 kPa at three consecutive sampling points), the system immediately triggered: ① a buzzer sounded (60 dB) and a red LED flashed; ② a "Pressure Exceeded" alarm message popped up on the PDA (including the child's bed number and the current pressure value); ③ the LED panel switched to "warning flashing" mode (alternating between red and yellow flashing). After receiving the alarm, medical staff sent a "decompression command" via PDA. The inflation adjustment unit only depressurized the chamber near the wrist, reducing the pressure to 23 kPa (single adjustment range 4 kPa, ≤5 kPa). The alarm was deactivated, and the LED panel resumed its cartoon display.

[0045] S5: Personalized adjustment of fixed strength One hour after the infusion, the medical staff observed that the skin near the fingertips on the back of the child's hand was slightly red through the PDA. They sent a "fine-tuning command", and the inflation adjustment unit released 0.5 kPa of air into the chamber near the fingertips, reducing the pressure from 18 kPa to 17.5 kPa. After the adjustment, the redness of the skin was relieved, and the device did not need to be disassembled throughout the process.

[0046] S6: Disassembly and disinfection after infusion Medical staff unlocked the PDA using NFC and removed the smart protective module; Press and hold the "Power" button for 3 seconds to turn off the system, and remove the flexible fixation module from the back of the child's hand; Disinfection procedure: ① Wipe the intelligent protective module, electronic combination lock and other detachable parts twice with medical gauze soaked in 75% alcohol (focus on cleaning the inside of the transparent protective shell and the magnetic surface); ② Place the flexible fixing module into a high-pressure steam sterilizer and sterilize it for 15 minutes at 134℃ and 0.2MPa pressure. It can be reused after sterilization (actual test shows it can withstand 50 sterilization cycles).

[0047] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A pediatric infusion protection device, characterized in that, include: The flexible fixation module includes an antibacterial silicone buffer layer, an array of pressure sensors, and an inflation adjustment unit. The antibacterial silicone buffer layer has a breathable micro-protrusion structure on its inner side. The array of pressure sensors is embedded inside the buffer layer to form a 2×3 matrix distribution. The inflation adjustment unit includes a micro air pump and a multi-chamber airbag, which are connected through an air supply pipeline to achieve zoned pressure adjustment. The intelligent protection module is detachably connected to the upper part of the flexible fixing module via a magnetic structure. It includes a transparent PC protective shell, a miniature camera, and a non-contact temperature sensor. The inner side of the transparent protective shell is provided with an arc-shaped positioning groove that is compatible with the infusion needle. The miniature camera is equipped with an 850nm infrared fill light, and the temperature sensor has a sampling frequency of 1Hz. The multimodal interaction module includes an electronic combination lock, an NFC unlocking unit, and a cartoon LED display panel. The electronic combination lock adopts a 3-digit digital roller structure, the NFC unlocking unit supports near-field communication authorization for medical terminal devices, and the LED display panel is integrated on the outside of the protective shell and can display dynamic cartoon patterns. The central control module, which is electrically connected to the above modules, includes a microprocessor, a Wi-Fi communication unit, and an audible and visual alarm unit. The microprocessor can receive monitoring data from pressure sensors, temperature sensors, and cameras. When it detects skin pressure >25kPa, temperature >38℃, or abnormal puncture point, it triggers an alarm and uploads the data to the medical management terminal via Wi-Fi.

2. The apparatus according to claim 1, characterized in that, The antibacterial silicone buffer layer uses silver ion antibacterial material, with an inhibition rate of ≥99% against Escherichia coli. The height of the breathable micro-convex structure is 0.5-1mm, and the spacing between adjacent protrusions is 2mm.

3. The apparatus according to claim 1, characterized in that, The multi-chamber airbag of the inflation adjustment unit is divided into 3 independent chambers along the length of the fixed module. Each chamber is equipped with a pressure feedback sensor, and the adjustment accuracy can reach ±1kPa.

4. The apparatus according to claim 1, characterized in that, The miniature camera has a resolution of 640×480 pixels, a frame rate of 15fps, and a lens angle of 90°. The central control module has a built-in image recognition algorithm that can detect bleeding and swelling at the puncture point.

5. The apparatus according to claim 1, characterized in that, The cartoon LED display panel adopts a 16×32 dot matrix design, supports switching between at least 5 preset animation modes, and can customize the displayed content through medical terminals.

6. The apparatus according to claim 1, characterized in that, The central control module also includes a lithium polymer battery and a wireless charging coil. The battery capacity is 500mAh, supports 10W Qi standard wireless charging, and has a continuous working time of ≥8 hours.

7. The apparatus according to claim 1, characterized in that, The magnetic attraction structure of the intelligent protection module and the flexible fixing module uses neodymium iron boron strong magnetic material with an attraction force of 3-5N, and the edge of the protective shell is provided with a 0.3mm thick silicone sealing ring.

8. A method of using a pediatric infusion protection device, based on the system described in any one of claims 1-7, characterized in that, Includes the following steps: S1: Medical staff unlock the electronic lock via NFC authorization, attach the flexible fixation module to the child's infusion site, start the system self-test and complete the zero-point calibration of the pressure sensor; S2: Adjust the inflation unit to reach an initial pressure of 15-20 kPa, position the infusion needle through the transparent protective shell and fasten the magnetic structure, and confirm that the arc-shaped positioning groove completely covers the needle. S3: Set the electronic combination lock and set the pressure threshold of 25kPa and the temperature threshold of 38℃ through the central control module, and enable the real-time monitoring mode of the camera. S4: During the infusion process, the central control module performs a multi-parameter inspection every 5 minutes. When an abnormality is detected: ① an audible and visual alarm is activated; ② an alarm message is pushed to the medical terminal via Wi-Fi; ③ the LED panel switches to warning flashing mode. S5: When the pressure needs to be adjusted, the medical terminal sends a command to the central control module, which uses the inflation adjustment unit to make fine adjustments to the pressure of a single or multiple chambers, with an adjustment range of ≤5kPa / time; S6: After the infusion is completed, the protective module is opened by NFC unlocking or password input, the system power is turned off, and the disinfection process is executed.

9. The method according to claim 8, characterized in that, The anomaly detection in step S4 includes: ① the pressure sensor reading exceeds the threshold for three consecutive sampling points; ② the temperature sensor reading exceeds the threshold for 10 consecutive seconds; ③ the image recognition algorithm determines that the probability of an abnormal puncture point is >85%.

10. The method according to claim 8, characterized in that, The disinfection process in step S6 requires wiping detachable parts with 75% alcohol, and the flexible fixing module can withstand high-pressure steam sterilization at 134℃.

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