A neonatal subcooling portable treatment device and body temperature regulation system

Abstract

The present application relates to the technical field of medical apparatus and instruments, and discloses a neonatal hypothermia portable treatment device and a body temperature regulation system, aiming to solve the problem that the prior art cannot adapt to the transfer scene and is prone to body temperature out of control when a neonatal hypoxic-ischemic encephalopathy is transferred, the body temperature regulation system comprises four modules of information acquisition, temperature control decision, temperature control execution and information connection, the information acquisition module collects and discriminates body temperature, physiological parameters and transfer interference data; the temperature control decision module generates temperature control instructions and interference compensation strategies in combination with preset parameters of body weight and according to scenes; the temperature control execution module drives components to land on the ground according to instructions and feeds back the state; and the information connection module summarizes data and synchronously transfers the data into a hospital admission system, so that the transition body temperature is stably controlled during the transfer, the hospital admission first-aid operation is smoothly connected, and the technical blank of pre-treatment body temperature transition management during short-distance transfer is filled.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a portable hypothermia treatment device and body temperature control system for newborns. Background Technology

[0002] Hypoxic-ischemic encephalopathy (HIE) is a common and critical illness in newborns during the perinatal period, leading to cerebral palsy, cognitive impairment, and even death. Moderate to severe cases require hypothermia intervention within the 6-hour treatment window after birth to protect brain function. Currently, the clinically recognized core treatment is hypothermia therapy, which reduces brain cell oxygen consumption, inhibits the release of inflammatory factors, and lowers adverse risks by controlling the newborn's core body temperature at 33-34°C for 72 hours. Most commonly used hypothermia therapy devices consist of a constant temperature blanket, a rectal thermometer, and a fixed temperature control unit, which requires a fixed location and continuous power supply and cannot be deployed on a mobile basis.

[0003] Existing technologies have developed multiple solutions to address the needs of neonatal body temperature regulation and care. For example, Chinese patent CN106667650A describes a temperature control scheme and control system for a human body temperature regulation system, which achieves multi-scenario temperature change speed adaptation and level rewarming by adjusting the expected water temperature in conjunction with a PID algorithm. Another example is Chinese patent CN119184945A, which describes a hypothermia treatment box for neonatal hypoxic-ischemic encephalopathy (HIE), which achieves hypothermia treatment and non-removal care for HIE infants through a temperature control system combined with physiological monitoring equipment.

[0004] In clinical practice, many primary hospitals are unable to provide in-hospital hypothermia treatment for HIE infants due to equipment limitations, requiring emergency transfer after birth. The transfer process falls within the 6-hour treatment window, a critical stage for hypothermia intervention. However, existing treatment equipment is large and has fragmented components, making it unsuitable for the confined space of transfer vehicles and hindering its portability and rapid deployment. Furthermore, existing equipment lacks a transitional body temperature maintenance system designed for transfer scenarios and cannot handle unexpected situations such as bumps and seizures during transfer. It also cannot combine multi-dimensional parameters to calculate and maintain transitional body temperature, leading to potential temperature instability in infants during transfer, affecting the connection with emergency procedures upon admission and increasing the risks of subsequent treatment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing technology has the disadvantage of insufficient adaptability of hypothermia treatment during transfer. To this end, we propose a portable hypothermia treatment device and body temperature control system for newborns.

[0006] To achieve the above objectives, this application adopts the following technical solution: a body temperature control system for a portable hypothermia treatment device for newborns, comprising an information acquisition module for collecting core body temperature data, temperature control carrier status data, transport interference parameters, and physiological parameters, and for validating the collected data and outputting reliable data; a temperature control decision module for generating routine temperature control execution commands based on reliable data and preset weight parameters, and for generating interference compensation strategies for transport bumps, abnormal contact of the constant temperature blanket, and seizure scenarios; a temperature control execution module for receiving routine temperature control execution commands and interference compensation strategies, driving the temperature control carrier to complete temperature control operations, simultaneously executing early warning information prompts, and feeding back the execution status to the temperature control decision module; and an information connection module for storing all data and completing data handover with the hospital transfer system.

[0007] Preferably, the temperature control carrier status parameters collected by the information acquisition module include the temperature of the constant temperature blanket, the outlet water temperature of the circulating water tank, and the bonding pressure of the constant temperature blanket; the transport interference parameters include the transport turbulence acceleration; and the physiological parameters include heart rate and blood oxygen.

[0008] Preferably, the temperature control decision module includes: a data receiving unit for receiving reliable data output by the information acquisition module; an effective value determination unit for validating the status data of the temperature control carrier; a temperature control calculation unit for calculating the temperature control execution power according to the newborn's weight, by calling the preset transition target body temperature, base power, and target temperature of the temperature control carrier, and combining the core body temperature deviation and the effective value determination result; an interference response unit for monitoring heart rate, blood oxygen saturation, and core body temperature fluctuations, and generating convulsion compensation instructions and safety fallback control instructions in a timely manner; and an instruction output unit for converting the temperature control execution power into a PWM control signal and sending it to the temperature control execution module.

[0009] Preferably, in the valid value verification, the bump intensity is determined based on the average composite acceleration. If the average composite acceleration is ≤0.5, it is determined to be a weak bump; if 0.5 < average composite acceleration ≤1.0, it is determined to be a moderate bump; if 1.0 < average composite acceleration ≤1.2, it is determined to be a strong bump; if the average composite acceleration is ≥1.2 and the fluctuation difference is >0.4, it is determined to be invalid.

[0010] Preferably, in the effective value verification, the bonding state is determined based on the bonding pressure. If the overall average pressure is ≥1.5N, it is determined to be normal bonding; if 1.2N≤overall average pressure<1.5N, it is determined to be insufficient bonding; and if the overall average pressure<1.2N, it is determined to be abnormal bonding.

[0011] Preferably, the scenario-based calculation logic of the temperature control calculation unit includes: dynamically adjusting the preset base power based on the bump intensity level and fit status level output by the effective value determination unit, combined with the deviation value between the core body temperature and the transition target body temperature.

[0012] Preferably, the convulsion compensation command includes a head cooling power compensation coefficient of -0.3 and a trunk power compensation coefficient of 0.

[0013] Preferably, the temperature control execution module receives a PWM signal as the temperature control command. When the actual execution power deviates from the command by more than 0.1W, the signal is fed back to the temperature control decision module for recalculation and correction.

[0014] A portable hypothermia treatment device for newborns includes a main unit housing. A transfer warmer that can be flipped upwards from 0 to 90 degrees is installed below the main unit housing. A folding link is provided between the transfer warmer and the main unit housing. When the transfer warmer is flipped upwards by 90 degrees, it forms a right-angled triangle support with the main unit housing and the folding link.

[0015] Preferably, the circulating water tank, the backup battery and the relay, and the main unit are arranged sequentially from bottom to top in the upper cavity of the main unit housing of the device; a semiconductor cooling chip is attached to the rear side of the circulating water tank; the backup battery and the relay are arranged opposite each other above the circulating water tank, and the relay is connected in series in the power supply circuit of the semiconductor cooling chip; the main unit is electrically connected to the information acquisition module, the temperature control decision module, the temperature control execution module, and the information connection module, and is used to receive signals transmitted by each module and output corresponding control commands.

[0016] The technical effects and advantages of this invention are as follows: In this invention, the body temperature control system collects the newborn's core body temperature, temperature control carrier status, transport interference parameters, and physiological parameters through an information acquisition module and verifies the validity of the data. The temperature control decision module combines the newborn's weight preset parameters and calculates the temperature control power according to the level of turbulence and the fit of the constant temperature blanket in different scenarios. It can also monitor physiological indicators to determine seizures and generate head power compensation instructions. The temperature control execution module drives the component landing instructions. The information connection module completes data standardization and handover to the hospital. This solves the problem that existing equipment cannot adapt to transport scenarios and is prone to body temperature loss, realizes stable body temperature control during transport, smoothly connects to emergency operations during hospital transfer, and fills the technical gap in body temperature transition management before treatment during short-distance transport.

[0017] In this invention, a rotatable transport incubator is encased in a main casing, and a folding linkage ensures stable support after the incubator is rotatable. At the same time, the system optimizes sensor installation and data acquisition for transport bumps and adjusts power distribution for sudden pathological conditions such as seizures. This solves the problems of existing equipment being large in size, having scattered components, and being poorly portable. It is adapted to the confined space of transfer vehicles, reduces the interference of the environment and operation during transport on temperature control, effectively copes with sudden situations such as bumps and seizures, and reduces the risk of subsequent treatment due to insufficient equipment adaptability. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the body temperature regulation system module structure provided by the present invention; Figure 2 This is a schematic diagram of the processing flow structure of the body temperature regulation system provided by the present invention; Figure 3 A three-dimensional structural schematic diagram of the treatment device provided by the present invention from a frontal view; Figure 4 A three-dimensional structural diagram of the treatment device provided by the present invention from the rear view; Figure 5 A cross-sectional structural diagram of the treatment device provided by the present invention from the rear view; Figure 6 A three-dimensional structural diagram of the treatment device provided by the present invention after unfolding; Figure 7 A three-dimensional structural diagram of the treatment device provided by the present invention after it has been unfolded, from another perspective. Figure 8 This is a partial structural diagram of the treatment device provided by the present invention.

[0019] Legend: 1. Main unit housing; 2. Temperature control display screen; 3. Transfer warmer; 4. Movable handle; 5. Medical staff operation window; 6. Blanket circulating fluid outlet pipe; 7. Blanket circulating fluid inlet pipe; 8. Heart rate probe interface; 9. Blood oxygen probe interface; 10. Rectal thermometer interface; 11. Unlock pedal; 12. Data interface; 13. Backup battery; 14. Relay; 15. Main unit; 16. Circulating water tank; 17. Semiconductor cooling chip; 18. Folding linkage; 19. Accelerometer; 20. Positioning protrusion; 21. Linkage pressure rod; 22. Oil chamber; 23. Elastic component. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0021] It should be noted that this invention addresses the need for body temperature management in short-distance neonatal transport scenarios. However, within a short timeframe, constrained by a safe cooling rate of 0.5-1.0℃ / h, it is impossible to lower the infant's body temperature to the clinically standard treatment temperature range. Forcibly meeting the cooling requirement could lead to excessive temperature fluctuations, affecting subsequent transfer to the hospital for emergency care. Therefore, the core objective of this invention is not to achieve therapeutic hypothermia, but to stabilize the infant's body temperature within a transitional temperature range through precise control. This avoids the risk of increased brain damage due to elevated body temperature during transport and allows for seamless coordination with emergency hospital transfer procedures, filling the technological gap in pre-treatment temperature transition management during short-distance transport.

[0022] Reference Figure 1 As shown, the present invention provides a technical solution: a body temperature control system for a portable hypothermia treatment device for newborns, comprising: Information acquisition module: used to collect newborn core body temperature data, temperature control carrier status, transport interference parameters and newborn physiological parameters, and simultaneously verify the validity of the data to provide reliable input basis for temperature control decisions; Temperature control decision module: Based on reliable data from the information acquisition module and combined with preset parameters of newborn weight, it generates routine temperature control execution instructions and simultaneously generates compensation strategies and emergency backup instructions for interferences such as transport bumps, abnormal fit, and seizures, providing accurate scheduling basis for the temperature control execution module; Temperature control execution module: Receives the final instructions from the temperature control decision module, drives the temperature control carrier to complete the temperature control operation, simultaneously executes early warning information prompts, and feeds back the execution status to the temperature control decision module; Information connection module: It integrates temperature control data, decision instructions and interference events throughout the transfer process, completes data standardization processing, and realizes rapid data handover with the hospital admission system through NFC, providing data support for subsequent treatment after admission; The four core modules work together to address the issue of insufficient adaptability of hypothermia therapy in referral scenarios. Specifically: The information acquisition module, as the data input source of the entire temperature control system, can be divided into a temperature data acquisition unit, an interference data acquisition unit, and a physiological parameter acquisition unit. The temperature data acquisition unit includes a rectal thermometer, a constant temperature blanket temperature sensor, and a circulating water tank temperature sensor, while the interference data acquisition unit consists of an acceleration sensor and a pressure sensor. The temperature data acquisition unit acquires the newborn's core body temperature and the temperature of the temperature control carrier, and the interference data acquisition unit captures interference parameters in the transportation scenario.

[0023] The accuracy and reliability of the data collected by the information acquisition module will directly determine the command scheduling of the subsequent temperature control decision module. Therefore, it is necessary to standardize the data acquisition methods and effective identification means. Rectal thermometers directly collect the newborn's core body temperature (T). core The probe is encapsulated with medical-grade flexible silicone, with a sampling end diameter of ≤2mm, an insertion depth of 3-4cm, and a sampling frequency controlled at 1 time / 30s, synchronized with the command frequency of the temperature control decision module. The temperature sensor of the constant temperature blanket collects the temperature T of the constant temperature blanket. blanket It adopts NTC patch temperature sensor, which is embedded between the skin-friendly cotton inner layer and the phase change energy storage layer of the constant temperature blanket at the head and torso respectively, to ensure close contact with the blanket body and avoid displacement caused by bumps. The sampling frequency is controlled at 1 time / 1min to ensure that the temperature of the constant temperature blanket is controlled at 24-28℃. The output data is associated with the rectal thermometer data for easy judgment by the temperature control decision module. The circulating water tank temperature sensor collects the temperature T at the outlet of the circulating water tank. tank The DS18B20 tube-type temperature sensor is used, which is inserted into the outlet pipe of the circulating water tank and fits against the inner wall of the pipe. The sampling frequency is controlled at 1 time / 2min.

[0024] An accelerometer is placed inside the transport incubator, close to the area where the temperature-controlled blanket is placed, to ensure that the collected data on bumps is consistent with the intensity of the bumps experienced by the newborn. A triaxial accelerometer is used, with a sampling frequency controlled at 1 time / 0.1s. The triaxial composite acceleration value (A) is output every 10s, and the calculation formula is as follows:

[0025] Where A x The instantaneous acceleration along the x-axis is used to reflect longitudinal impacts similar to those experienced during sudden braking or starting. A y The instantaneous acceleration along the y-axis is used to reflect lateral swaying similar to that caused by a vehicle turning or uneven road surfaces. A z It refers to the instantaneous acceleration along the z-axis, used to reflect up-and-down vibrations caused by things like speed bumps or road bumps; The pressure sensor uses an FSR402 thin-film pressure sensor, which is evenly embedded in the skin-friendly cotton outer layer of the torso and head area on both sides of the constant temperature blanket, directly contacting the newborn's body surface. The sampling frequency is controlled at 1 time / 5s to detect the contact pressure (P) between the constant temperature blanket and the newborn's body surface, to determine whether the constant temperature blanket is properly covering and fitting, and to avoid a decrease in temperature control efficiency due to the blanket falling off or shifting. The physiological parameter acquisition unit is connected to the monitor of the transport vehicle to receive heart rate and blood oxygen saturation data in real time, with a sampling frequency controlled at 1 time / 5s.

[0026] The temperature control decision module, as the core instruction generation unit of the body temperature regulation system, is electrically connected to the information acquisition module, the temperature control execution module, and the information connection module. Specifically, it includes a data receiving unit, an effective value determination unit, a temperature control calculation unit, an interference response unit, and an instruction output unit. The data receiving unit receives multi-dimensional data from the body temperature sensing module and then outputs it to the valid value determination unit to verify the validity of the synthetic acceleration value (A) and the contact pressure (P). Specifically: After collecting three data points consecutively, calculate the mean A. avg If A avg ≤0.5, judged as weak turbulence, marked as effective level 1; if 0.5 <A avg ≤1.0, judged as moderate turbulence, marked as effective level 2; if 1.0 <A avg ≤1.2, judged as strong turbulence, marked as effective level 3; if A avg If the value is greater than 1.2, or the difference between three consecutive data points is greater than 0.4, the value A is considered invalid. A valid value is output every 30 seconds, synchronized with the collection frequency of the rectal thermometer. Calculate the left torso contact pressure P body1 Pressure P against the right side of the torso body2 The average value of the stress is denoted as the mean trunk pressure P. body Then calculate the mean trunk pressure P. body With head pressure P head The average value is denoted as the overall average pressure P. avg If P avg ≥1.5N is considered a normal fit and is marked as valid state 1. If 1.2N≤P avg ≤1.5N, judged as insufficient fit, effective value, marked as effective state 2, if P avg If the value is ≤1.2N, it is determined that the P value is invalid, marked as an abnormal fit, and a warning message is output.

[0027] The temperature control calculation unit, the interference response unit, and the instruction output unit work together to preset basic control parameters based on the newborn's weight classification, as shown in Table 1.

[0028] Table 1 Based on neonatal core body temperature T core With target body temperature T trans The core body temperature deviation ΔT is calculated, and then the final execution power P is calculated according to the effective value combination of A and P values ​​for different scenarios. exec The power allocation ratio is as follows: If the value of A satisfies effective level 1-3, and the value of P belongs to effective state 1, then the power calculation formula is as follows:

[0029] Among them, K A The bump compensation coefficient is 0 for mild bumps, 0.1 for moderate bumps, and -0.2 for severe bumps; K T K is the body temperature deviation coefficient. When the core body temperature deviation ΔT > 0, K T For 0.3ΔT, when the core body temperature deviation ΔT≤0, K T It is -0.05; At this time, the power distribution ratio in Table 1 is used for output. If T blanket >Tb_target+0.5℃, send a command to the circulating water tank to increase the cooling power of the cold source by 5%. If T blanket <Tb_target-0.5℃, send a command to reduce the power of the cold source by 5%; If the value of A satisfies effective level 1-2, and the value of P belongs to effective state 2, then the power calculation formula is as follows:

[0030] The power ratio of the torso has been increased to 50%, and a warning message indicating insufficient adhesion of the constant temperature blanket is displayed. If at least one of the values ​​A and P is invalid, the power calculation formula is as follows:

[0031] Maintain minimum safe power to avoid the risk of overcooling when there is no effective temperature control medium, and display abnormal warning information; Then P exec The signal is converted into a PWM control signal and sent to the head and body drive circuits of the temperature control execution module through the instruction output unit. Every 30 seconds, the actual power feedback value from the temperature control execution module is received. If the feedback value is consistent with P... exec If the deviation exceeds 0.1W, repeat the power allocation calculation and correction command; The system receives heart rate and blood oxygen saturation data from the physiological parameter acquisition unit, and simultaneously receives the core body temperature fluctuation value ΔT' from the temperature data acquisition unit. The formula for calculating ΔT' is:

[0032] The thresholds for judging abnormal physiological parameters in newborns of different weights are shown in Table 2.

[0033] Table 2 When the real-time heart rate exceeds the upper limit of abnormal heart rate for the corresponding body weight in Table 2, or the blood oxygen saturation is lower than the corresponding threshold, or the core body temperature fluctuation value ΔT' exceeds the corresponding threshold, and the duration of any two of these abnormal conditions exceeds 3 seconds, the interference response unit determines it as a seizure phenomenon and outputs the seizure compensation coefficient (C) to the temperature control calculation unit. When the heart rate remains below 80 beats / min for 5 seconds, the interference response unit immediately determines it as bradycardia, generates a safety fallback control command, and controls the temperature control execution module to forcibly adjust the overall cooling power of the system to the preset minimum safe power level, and triggers an audible and visual alarm. Temperature control calculation unit combined with base power P base Current conventional execution power P exec Calculate the final execution power P in the seizure scenario. final The details are as follows: In the event of a seizure, to avoid exacerbating the seizure due to excessive cold stimulation to the head, the cooling power compensation coefficient C is -0.3, that is:

[0034] The torso is kept warm with a power compensation coefficient C of 0. When the interference response unit detects that the conditions in Table 2 are met for more than 10 seconds, it is determined that the seizure has been relieved and the compensation strategy is gradually withdrawn. The interference response unit sends seizure event logs to the information connection module in real time, including seizure time, duration, raw physiological parameter data, supplementary power values, and marks them as high-impact events.

[0035] The temperature control execution module, as the command landing terminal, receives the final execution power, temperature control carrier control command and warning command output by the temperature control decision module, including the command execution unit, the warning execution unit and the status feedback unit; Specifically, the instruction execution unit consists of a thermoelectric cooler, a micro water pump, and a relay. The thermoelectric cooler is a TEC1-12706 model, which generates hot and cold ends through the Peltier effect. The micro water pump drives the circulating liquid cooling cycle to transfer the cooling energy to the constant temperature blanket. The relay is connected in series in the power supply circuit of the thermoelectric cooler to control the start and stop of the cooler and adjust its power.

[0036] As the data hub, the information connection module undertakes the functions of data interaction between various modules within the system and connection with external information. On one end, it communicates bidirectionally with the information acquisition module, temperature control decision module, and temperature control execution module through the internal bus. On the other end, it connects with the medical terminal of the transport vehicle and the hospital HIS system through NFC to realize the storage of raw data, forwarding of processing results, recording of event logs, and cross-device data synchronization.

[0037] refer to Figure 2 As shown, in order to enable those skilled in the art to better understand the present invention, the complete process steps are outlined based on the functional logic of each module, as follows: S1: Multi-dimensional data collection and validity screening; Collect the newborn's core body temperature and the temperature of the temperature control carrier, and simultaneously acquire the heart rate and blood oxygen saturation data from the transport vehicle monitor; capture transport interference parameters, calculate the level of turbulence and the fit of the constant temperature blanket; discard invalid data, such as excessive turbulence or insufficient fit pressure, and only transmit valid data to the temperature control decision module.

[0038] S2: Temperature control decision based on weight and scenario Based on the newborn's weight, preset transitional target body temperature, constant temperature blanket, water tank target temperature, and basic power parameters are invoked; core body temperature deviation is calculated, and the final temperature control power is calculated according to the level of turbulence and fit status, depending on the scenario. Normal fit is adjusted according to the basic power compensation, insufficient fit increases the torso power ratio, and invalid data is used to maintain the minimum safe power; heart rate, blood oxygen, and body temperature fluctuations are monitored. If the seizure judgment condition is triggered, an emergency compensation instruction of reducing head power and keeping torso warm is generated, and the seizure event is recorded.

[0039] S3: Temperature control command execution and status feedback; The system drives the semiconductor cooling chip and micro water pump according to instructions, and controls the circuit to maintain the temperature of the constant temperature blanket at 24-28℃ through relay control; it triggers corresponding warnings, such as insufficient fit, invalid data, convulsions, etc., to prompt medical staff to intervene; it collects the actual working status of the temperature control components in real time and feeds it back to the temperature control decision module, and corrects the instructions if the deviation exceeds the standard.

[0040] S4: Data aggregation and connection with the receiving hospital; The system collects and standardizes temperature control data, decision-making instructions, and abnormal events throughout the transfer process; it synchronizes structured data to the hospital's HIS system or emergency equipment via NFC near-field communication; it retains local data backups and supports subsequent export and traceability, providing a basis for connection to the hospital's treatment.

[0041] Reference Figure 4As shown, the present invention provides a portable hypothermia treatment device for newborns, including a main unit housing 1. The main unit housing 1 has a C-shaped design with the opening facing forward. There is a vertical plate at the rear, and a horizontal plate extending from the lower end of the plate perpendicular to the vertical plate. The upper part is the main body. An operating ramp is provided at the front of the upper part of the main unit housing 1. A temperature control display screen 2 is embedded in the middle of the ramp for real-time display of temperature control parameters and warning information. A transfer incubator 3 is connected to the bottom front edge of the upper part of the main unit housing 1 by a hinge. The main unit housing 1 has a semi-enclosed structure that covers the transfer incubator 3. A movable handle 4 is movably installed in the middle of the rear of the vertical plate of the main unit housing 1. The movable handle 4 and the main unit housing 1 can form an angle of at least 90°. The outer edge of the upper front end of the transfer warming box 3 forms a rotation fulcrum with the main equipment housing 1. The transfer warming box 3 can be flipped upwards by 90°. When the extension shaft of the transfer warming box 3 is perpendicular to the extension shaft of the main equipment housing 1, it automatically locks to prevent excessive flipping or angle deviation due to bumps. The transport incubator 3 has two medical staff operation windows 5 on one side. The medical staff operation windows 5 are oval-shaped to accommodate the curvature of medical staff's hands. The edges of the windows are fitted with soft silicone protective rings to prevent medical staff from scratching their hands during operation and to reduce heat loss inside the incubator. The inside of the medical staff operation windows 5 can be detachably covered with a transparent medical PC material cover. When not in operation, the cover is closed to ensure the airtightness of the environment inside the incubator.

[0042] refer to Figure 5 As shown, on the other side of the transport incubator 3 opposite to the medical operation window 5, from top to bottom, there are a blanket circulating fluid outlet pipe 6, a blanket circulating fluid inlet pipe 7, a heart rate probe interface 8, a blood oxygen probe interface 9, and a rectal thermometer interface 10. Each interface is designed with an internal thread structure and is equipped with a medical-grade sealing nut. The heart rate probe interface 8, blood oxygen probe interface 9, and rectal thermometer interface 10 are respectively connected to the fixed socket of the corresponding probe inside the incubator through shielded cables to ensure that the probe and interface connection is stable during transport. A vertical sliding groove is provided on the main housing 1 of the device, directly below the movable handle 4. An unlocking pedal 11 is provided in the groove. A heat dissipation grille is provided directly above the connection of the movable handle 4, corresponding to the internal heat dissipation component. A data interface 12 is embedded on one side of the main housing 1 of the device, which integrates data transmission and circulating fluid passage functions. One end of the blanket circulating fluid outlet pipe 6 and the blanket circulating fluid inlet pipe 7 are connected to the data interface 12, and the other end is connected to the circulating fluid channel of the constant temperature blanket in the transfer warm box 3 through a medical silicone tube. A double sealing ring is provided at the interface to prevent circulating fluid leakage.

[0043] refer to Figure 6As shown, the data interface 12 is embedded in the cavity of the upper part of the main unit housing 1. A circulating water tank 16 is connected and installed below the data interface 12. The circulating water tank 16 is located at the bottom of the cavity and fits against the inner wall of the cavity. It has a built-in temperature sensor. A backup battery 13 and a relay 14 are integrated and installed above the circulating water tank 16. The backup battery 13 and the relay 14 are arranged opposite each other. The backup battery 13 is closer to the side of the data interface 12. A semiconductor cooling chip 17 is installed behind the circulating water tank 16. The hot end of the semiconductor cooling chip 17 corresponds to the heat dissipation grille to ensure efficient discharge of waste heat. The main unit 15 is set at the top of the cavity. The main unit 15 is the core control unit of the device. It is fixed at the top of the inner wall of the cavity and is electrically connected to the components of the information acquisition module, temperature control decision module, temperature control execution module, and information connection module. Through a preset sub-low temperature transition body temperature regulation algorithm, it uniformly receives input signals, generates control commands, and coordinates the operation of various components. It is the core carrier for realizing the treatment function.

[0044] refer to Figure 7 As shown, to ensure that the transport incubator 3 can stably support the weight of the newborn after being rotated 90°, a long strip-shaped connecting rod storage groove is provided on the contact end face of the transport incubator 3 and the main unit shell 1, i.e., the top surface when not rotated. A matching groove is provided at the corresponding position on the bottom of the main unit shell 1. Two sections of aluminum alloy folding connecting rod 18 are installed inside the two grooves. One end of the folding connecting rod 18 is rotatably connected to the inner wall of the groove of the transport incubator 3 through a pin, and the other end is rotatably connected to the inner wall of the groove of the main unit shell 1 through a pin. When the transport incubator 3 is rotated 90°, the newborn's weight is supported. When the box 3 is attached to the main body shell 1 of the equipment, the folding connecting rod 18 is in a retracted state and is fully embedded in the two sliding grooves. The opening of the sliding groove is equipped with a dustproof rubber strip to prevent dust from entering during transportation. When the transfer warmer 3 is flipped upward 90° and the limit buckle is triggered to lock, the folding connecting rod 18 automatically straightens under the gravity of the warmer, and together with the end face of the transfer warmer 3 and the bottom face of the main body shell 1 of the equipment, it forms a right-angled triangular support structure. The folding connecting rod 18 is the hypotenuse, which ensures that the warmer does not shake after being flipped, meeting the stability requirements of newborns when lying down.

[0045] refer to Figure 8 As shown, in order to accurately collect data on bumps during transport and to compensate for interference in the subsequent temperature control decision module, an accelerometer 19 is embedded in a reserved mounting slot on the inner wall of the transport incubator 3 near the head area of ​​the constant temperature blanket. The mounting slot is filled with medical-grade buffer silicone, which not only achieves rigid fixation between the sensor and the incubator, but also filters out the interference of slight vibrations of the incubator on the sensor, ensuring that the collected bump data is consistent with the actual feeling of the newborn.

[0046] refer to Figure 8As shown, to solve the interference problem between the transfer warming box 3 and the main equipment housing 1 when it is flipped, the vertical surface of the rear side of the main equipment housing 1 can be divided into two sections. The upper part is embedded in the interior of the lower part. The bottom of the lower part has a "mountain"-shaped oil cavity 22. The oil cavity 22 is filled with incompressible oil. A linkage pressure rod 21 is coaxially inserted in the middle channel. The top of the linkage pressure rod 21 is fixedly connected to the unlocking pedal 11. Slender oil cavities 22 are symmetrically arranged on both sides. The top of the oil cavity 22 on both sides is fitted with an oil-driven elastic component 23. The elastic component 23 consists of a piston head below and a stainless steel compression spring above. The outer circle of the piston head is provided with an O-ring fluororubber seal to ensure oil sealing. The top of the compression spring abuts against the bottom surface of the upper part and the bottom is fixedly connected to the piston head. A slide rod is installed below the upper part. The bottom of the slide rod is machined with a positioning protrusion 20. A through hole matching the positioning protrusion 20 is opened at the corresponding position of the lower part.

[0047] When medical staff step on the incubator unlocking pedal 11, the pedal linkage lever 21 moves downward along the middle channel of the mountain-shaped hydraulic drive chamber 22, squeezing the hydraulic oil in the middle chamber. After being squeezed, the oil flows upward along the two slender oil chambers on both sides, pushing the piston head to compress the spring, causing the vertical longitudinal plate of the main body shell 1 to extend upward in a localized manner, thereby creating space for the transfer incubator 3 to flip and avoiding interference from the flipping.

[0048] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A body temperature control system for a portable hypothermia treatment device for newborns, characterized in that, include: The information acquisition module is used to collect core body temperature data, temperature control carrier status data, transport interference parameters and physiological parameters, and to verify the validity of the collected data and output reliable data. The temperature control decision module is used to generate routine temperature control execution commands based on reliable data and preset weight parameters. It can also generate interference compensation strategies for scenarios such as transport bumps, abnormal fit of constant temperature blankets, and seizures. The temperature control execution module is used to receive conventional temperature control execution commands and interference compensation strategies, drive the temperature control carrier to complete the temperature control operation, simultaneously execute early warning information prompts, and feed back the execution status to the temperature control decision module. The information connection module is used to store all data and complete the data handover with the transfer hospital system.

2. The body temperature control system of a portable hypothermia treatment device for newborns according to claim 1, characterized in that: The information acquisition module collects the temperature control carrier status parameters, including the temperature of the constant temperature blanket, the outlet water temperature of the circulating water tank, and the bonding pressure of the constant temperature blanket; the transport interference parameters include the transport turbulence acceleration; and the physiological parameters include heart rate and blood oxygen.

3. The body temperature control system of a portable hypothermia treatment device for newborns according to claim 1, characterized in that: The temperature control decision module includes: The data receiving unit is used to receive reliable data output by the information acquisition module; The effective value determination unit is used to verify the effective value of the temperature control carrier status data. The temperature control calculation unit is used to call the preset transition target body temperature, base power and temperature control carrier target temperature according to the newborn's weight, and calculate the temperature control execution power according to the core body temperature deviation and effective value judgment results. The interference response unit is used to monitor heart rate, blood oxygen saturation and core body temperature fluctuations, and to generate seizure compensation instructions and safety fallback control instructions in a timely manner. The instruction output unit is used to convert the temperature control execution power into a PWM control signal and send it to the temperature control execution module.

4. The body temperature control system of a portable hypothermia treatment device for newborns according to claim 3, characterized in that: In the valid value verification, the bump intensity is determined based on the average composite acceleration. If the average composite acceleration is ≤0.5, it is determined to be a weak bump; if 0.5 < average composite acceleration ≤1.0, it is determined to be a moderate bump; if 1.0 < average composite acceleration ≤1.2, it is determined to be a strong bump; if the average composite acceleration is ≥1.2 and the fluctuation difference is >0.4, it is determined to be invalid.

5. The body temperature control system of a portable hypothermia treatment device for newborns according to claim 4, characterized in that: In the effective value verification, the bonding status is determined based on the bonding pressure. If the overall average pressure is ≥1.5N, it is determined to be a normal bonding; if the overall average pressure is ≤1.2N and <1.5N, it is determined to be an insufficient bonding; and if the overall average pressure is <1.2N, it is determined to be an abnormal bonding.

6. The body temperature control system of a portable hypothermia treatment device for newborns according to claim 5, characterized in that: The scenario-based calculation logic of the temperature control calculation unit includes: dynamically adjusting the preset base power based on the bump intensity level and fit status level output by the effective value judgment unit, combined with the deviation value between the core body temperature and the transition target body temperature.

7. The body temperature control system of a portable hypothermia treatment device for newborns according to claim 3, characterized in that: The convulsion compensation command includes a head cooling power compensation coefficient of -0.3 and a trunk power compensation coefficient of 0.

8. The body temperature control system of a portable hypothermia treatment device for newborns according to claim 3, characterized in that: The temperature control execution module receives a PWM signal as the temperature control command. When the actual execution power deviates from the command by more than 0.1W, it is fed back to the temperature control decision module for recalculation and correction.

9. A portable hypothermia treatment device for newborns, characterized in that, The body temperature control system of the hypothermia portable treatment device for newborns according to any one of claims 1-8 further includes a main unit housing of the device, and a transfer warming box that can be flipped upwards by 0-90° is installed below the main unit housing of the device. A folding connecting rod is provided between the transfer warming box and the main unit housing of the device. When the transfer warming box is flipped upwards by 90°, it forms a right-angled triangular support with the main unit housing of the device and the folding connecting rod.

10. A portable hypothermia treatment device for newborns according to claim 9, characterized in that: The main body of the device is arranged in the upper cavity from bottom to top as follows: a circulating water tank, a backup battery and a relay, and the main body. A semiconductor cooling chip is attached to the rear side of the circulating water tank. The backup battery and the relay are arranged opposite each other above the circulating water tank. The relay is connected in series with the power supply circuit of the semiconductor cooling chip. The main body is electrically connected to the information acquisition module, the temperature control decision module, the temperature control execution module, and the information connection module, and is used to receive signals transmitted by each module and output corresponding control commands.

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