CN-122009674-A - Portable insulin intelligent constant temperature protection device and method based on phase change material

CN122009674ACN 122009674 ACN122009674 ACN 122009674ACN-122009674-A

Abstract

The invention relates to the technical field of medical appliances, and discloses a portable intelligent insulin constant temperature protection device and method based on a phase change material, wherein the portable intelligent insulin constant temperature protection device based on the phase change material comprises a shell, a phase change material layer, a vacuum heat insulation layer and an insulin constant temperature control circuit; the middle part of the shell is provided with a storage cavity capable of containing insulin preparation; the phase change material layer and the vacuum heat insulation layer are sequentially arranged outside the storage cavity from inside to outside; the phase change material layer is used for maintaining the temperature of the storage cavity within the optimal storage temperature range of the insulin preparation, the vacuum heat insulation layer is used for blocking external environment heat from being transmitted to the inside of the storage cavity, and the insulin constant temperature control circuit is arranged on the shell to monitor the temperature in the storage cavity in real time. The invention can maintain the temperature in the storage cavity stable for a long time under the condition of no external power supply, and realize real-time monitoring and abnormal alarm of the storage temperature.

Inventors

Chen Huaibiao
CHENG AOXIN

Assignees

中京相变(上海)科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260326

Claims (10)

1. The portable insulin intelligent constant temperature protection device based on the phase change material is characterized by comprising a shell, a phase change material layer, a vacuum heat insulation layer and an insulin constant temperature control circuit; The middle part of the shell is provided with a storage cavity capable of containing insulin preparation; The phase change material layer and the vacuum heat insulation layer are sequentially arranged outside the storage cavity from inside to outside, and are both positioned in the shell, the phase change material layer is used for maintaining the temperature of the storage cavity to be constant within the optimal storage temperature range of the insulin preparation, and the vacuum heat insulation layer is used for blocking external environment heat from being transferred to the storage cavity; The insulin constant temperature control circuit is arranged on the shell and used for monitoring the temperature in the storage cavity in real time and giving an alarm when the temperature is abnormal.
2. The portable insulin intelligent constant temperature protection device based on phase change material as claimed in claim 1, wherein the phase change material layer comprises a porous adsorption substrate and a phase change energy storage medium uniformly dispersed in pores of the porous adsorption substrate.
3. The portable insulin intelligent constant temperature protection device based on the phase change material according to claim 2, wherein the porous adsorption substrate comprises expanded graphite, diatomite or a metal organic framework material, and the phase change energy storage medium is one or a mixture of a plurality of alkanes or a phase change gel system formed by crosslinking hydroxypropyl methyl cellulose and sodium polyacrylate.
4. The portable insulin intelligent constant temperature protection device based on the phase change material, as claimed in claim 1, is characterized in that the vacuum heat insulation layer comprises a vacuum heat insulation core material and a high-barrier film, wherein the vacuum heat insulation core material is packed in the high-barrier film after being compressed, and the inside of the high-barrier film is vacuumized to form a heat insulation cavity.
5. The portable insulin intelligent constant temperature protection device based on the phase change material according to claim 1, wherein the insulin constant temperature control circuit comprises a sensor, a display, a PCB circuit board, a power supply and a buzzer alarm; The sensor comprises a storage cavity, a display, a PCB circuit board, a power supply, a control circuit, a display, a buzzer alarm, a power supply and a power supply, wherein the probe end of the sensor stretches into the storage cavity and is used for detecting the temperature in the storage cavity, the display is connected with the PCB circuit board and is used for displaying a temperature value in real time, the PCB circuit board is connected with the sensor, the display and the buzzer alarm, the control circuit is switched between a normal mode and an alarm mode according to the temperature detection value of the sensor after touch control is started, the control circuit is automatically closed after the temperature value is displayed for a preset time, the buzzer alarm is triggered to sound by the PCB circuit board in the alarm mode, and the power supply is connected with the sensor, the display and the PCB circuit board.
6. The portable insulin intelligent constant temperature protection device based on phase change materials according to claim 5, wherein the display comprises a display screen, touch keys and a light bar which are connected; The PCB comprises a key lamp control module, a temperature sensing control module, a power supply control module, a lamp strip control module, a touch chip control module and an MCU unit; the key lamp control module is connected with the touch key, the temperature sensing control module is connected with the sensor, the power supply control module is connected with the power supply, the light bar control module is connected with the light bar, the touch chip control module is connected with the display screen, and the MCU unit is connected with the key lamp control module, the temperature sensing control module, the power supply control module, the light bar control module and the touch chip control module.
7. The portable insulin intelligent constant temperature protection device based on the phase change material, as set forth in claim 1, wherein a cover is arranged at the top end of the housing, the cover is used for closing the opening of the storage cavity, and a sealing ring is arranged between the cover and the housing.
8. A portable insulin intelligent constant temperature protection method based on phase change materials, which uses the portable insulin intelligent constant temperature protection device based on phase change materials as claimed in any one of claims 1 to 7, and is characterized by comprising the following specific steps: Pre-cooling, namely placing the portable insulin intelligent constant temperature protection device based on the phase change material in an environment lower than a preset temperature value to fully solidify and store cold until the phase change material layer is fully solidified; loading, namely placing insulin preparation into a storage cavity, closing a shell to enable the device to be in a closed state; maintaining constant temperature by maintaining the temperature of the storage cavity constant within the optimal storage temperature range of the insulin preparation by using the phase change material layer, and simultaneously blocking external environment heat from being transferred to the inside by using the vacuum heat insulation layer; And intelligent monitoring, namely acquiring temperature data of the storage cavity in real time, transmitting the temperature data to an insulin constant temperature control circuit for display, and giving out a warning when the temperature is abnormal.
9. The intelligent constant temperature protection method for portable insulin based on phase change material according to claim 8, wherein in the constant temperature maintaining step, the optimal storage temperature range of the insulin preparation is 25-30 ℃.
10. The intelligent constant temperature protection method for portable insulin based on phase change materials according to claim 8, wherein the intelligent monitoring step comprises two working states of a normal mode and an alarm mode, the normal mode is a working state when the detected temperature of the sensor is smaller than or equal to a preset value, the light bar is displayed in a white-blue gradual change mode, the alarm mode is a working state when the detected temperature of the sensor is larger than the preset value, the light bar is switched from the white-blue gradual change mode to the white-red gradual change mode, and a buzzer alarm is triggered to give out an alarm.

Description

Portable insulin intelligent constant temperature protection device and method based on phase change material Technical Field The invention relates to the technical field of medical appliances, in particular to a portable intelligent insulin constant temperature protection device and method based on a phase change material. Background Insulin is a core drug for the treatment of diabetes, and its protein structure is highly sensitive to temperature. The unopened insulin usually needs to be refrigerated and stored at 2-8 ℃, and the unopened insulin can be stored for a short time at room temperature, but still needs to be strictly prevented from high temperature, freezing and severe temperature fluctuation, otherwise, protein denaturation and inactivation are caused, the drug effect is seriously influenced, and the medication safety of patients is endangered. Along with the continuous increase of the number of diabetics, the requirement of the diabetics for carrying insulin with the patients in the scenes of daily travel, outdoor activities, long-distance travel and the like is becoming common. However, there are significant limitations to existing insulin storage protocols. The traditional heat preservation bag generally depends on a common ice bag or a cold storage agent to provide cold energy, the temperature control of the device is extremely unstable, the cold storage energy is rapidly consumed in a high-temperature environment, and a stable temperature interval is difficult to maintain continuously for a long time. Some products adopting the electronic refrigeration technology have certain temperature control capability, but have larger volume, rely on continuous power supply, have poorer applicability in the occasion without power supply and have larger restriction on practical portability. In the aspect of heat insulation and heat preservation structures, the heat conductivity coefficient of the conventional heat preservation material is relatively high, the heat insulation effect is limited, external environment heat is easy to permeate into the storage cavity, the phase change consumption of the internal cold storage material is accelerated, and the effective heat preservation duration is further compressed. In addition, the existing portable insulin storage device generally lacks temperature real-time monitoring and abnormal alarm functions, and a user cannot timely grasp the actual temperature state in the storage cavity. Once the storage temperature exceeds the safety range, the patient often cannot be effectively prompted, and a large potential safety hazard exists. Therefore, it is needed to provide a portable intelligent insulin constant temperature protection device and method based on phase change materials to solve the above problems. Disclosure of Invention The invention aims to provide a portable intelligent constant temperature insulin protection device and method based on a phase change material, which can maintain the temperature in a storage cavity stable for a long time under the condition of no external power supply and realize real-time monitoring and abnormal alarm of the storage temperature. In order to solve the technical problems, the invention provides a portable insulin intelligent constant temperature protection device based on a phase change material, which comprises a shell, a phase change material layer, a vacuum heat insulation layer and an insulin constant temperature control circuit; The middle part of the shell is provided with a storage cavity capable of containing insulin preparation; The phase change material layer and the vacuum heat insulation layer are sequentially arranged outside the storage cavity from inside to outside, and are both positioned in the shell, the phase change material layer is used for maintaining the temperature of the storage cavity to be constant within the optimal storage temperature range of the insulin preparation, and the vacuum heat insulation layer is used for blocking external environment heat from being transferred to the storage cavity; The insulin constant temperature control circuit is arranged on the shell and used for monitoring the temperature in the storage cavity in real time and giving an alarm when the temperature is abnormal. Further, the phase change material layer comprises a porous adsorption substrate and a phase change energy storage medium uniformly dispersed in the pores of the porous adsorption substrate. Further, the porous adsorption substrate comprises expanded graphite, diatomite or a metal organic framework material, and the phase-change energy storage medium is one or a mixture of more of alkanes or a phase-change gel system formed by crosslinking hydroxypropyl methyl cellulose and sodium polyacrylate. Further, the vacuum heat insulation layer comprises a vacuum heat insulation core material and a high-barrier film, wherein the vacuum heat insulation core material is compressed and then wrapped in the high-ba