An endometrial cancer screening kit with a sample long-term stable storage function

CN224739883UActive Publication Date: 2026-09-11HANDAN NORMAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521753798.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-09-11
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于,提供一种具备样本长期稳定保存功能的子宫内膜癌筛查试剂盒,能够解决现有的子宫内膜癌筛查试剂盒在样本保存环节存在明显不足:传统试剂盒依赖冷藏箱被动保温,难以精准维持样本最佳保存温度(2-8℃),温度波动易引发核酸、蛋白质降解,直接干扰检测结果,同时,试剂盒内部湿度无法保持稳定调控,高湿环境易滋生细菌、低湿则可能造成样本干燥,使得样本保存周期较短,难以适配偏远地区样本长途运输、长期存档的实际需求的问题

Benefits of technology

[0016]1、本申请通过设置梯形存放架、密封样本管、智控结构与制冷结构,智控结构可自行检测试剂盒体内部的温湿度,根据内部温度信号精准调控半导体制冷片启停,稳定维持2-8℃的最佳保存温度,从而避免密封样本管内的子宫内膜组织、血液等筛查样本中含有的核酸、蛋白质因温度波动发生降解,其中,温度传感器专门检测散热鳍片处的传导散热温度,当温度超过预定范围时,智控结构启动静音风扇进行高效散热,温度稳定后则关闭风扇以节约能源,同时,梯形存放架的管槽可稳固放置密封样本管,减少运输晃动对样本的影响,解决了传统试剂盒体温度控制失效、样本易降解的问题,满足长途运输和长期存档需求;

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Abstract

This utility model discloses an endometrial cancer screening kit with long-term stable sample preservation function, belonging to the field of medical device technology. Its key technical features include a kit body with a trapezoidal storage rack inside. This application incorporates a trapezoidal storage rack, sealed sample tubes, an intelligent control structure, and a cooling structure. The intelligent control structure can automatically detect the internal temperature and humidity of the kit body and precisely regulate the start and stop of the semiconductor cooling chip based on the internal temperature signal, stably maintaining the optimal preservation temperature of 2-8℃. This prevents the degradation of nucleic acids and proteins contained in the screening samples, such as endometrial tissue and blood, in the sealed sample tubes due to temperature fluctuations. A temperature sensor specifically detects the conduction heat dissipation temperature at the heat sink fins. When the temperature exceeds a predetermined range, the intelligent control structure activates a silent fan for efficient heat dissipation; once the temperature stabilizes, the fan is turned off to save energy.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an endometrial cancer screening kit with the function of long-term stable sample preservation. Background Technology

[0002] Endometrial cancer is a common malignant tumor of the female reproductive system. Early screening requires accurate detection of tumor markers (such as CA125 and HE4) and nucleic acid fragments in samples such as endometrial tissue, cervical exfoliated cells, and blood. The nucleic acid and protein components in the samples are sensitive to the storage environment. Achieving long-term stable storage of the samples is the core prerequisite for ensuring accurate and reliable test results.

[0003] However, existing endometrial cancer screening kits have significant shortcomings in sample preservation: traditional kits rely on passive insulation in refrigerators, making it difficult to accurately maintain the optimal sample preservation temperature (2-8℃). Temperature fluctuations can easily cause nucleic acid and protein degradation, directly interfering with the test results. At the same time, the internal humidity of the kits cannot be kept stable. High humidity environments can easily breed bacteria, while low humidity may cause the samples to dry out, resulting in a short sample preservation period, which is difficult to meet the actual needs of long-distance sample transportation and long-term archiving in remote areas.

[0004] Therefore, an endometrial cancer screening kit with long-term sample stability preservation function is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an endometrial cancer screening kit with long-term stable sample preservation function, which can solve the obvious shortcomings of existing endometrial cancer screening kits in the sample preservation process: traditional kits rely on passive insulation in refrigerators, which makes it difficult to accurately maintain the optimal sample preservation temperature (2-8℃). Temperature fluctuations can easily cause nucleic acid and protein degradation, directly interfering with the test results. At the same time, the internal humidity of the kit cannot be kept stable. High humidity environment is prone to bacterial growth, while low humidity may cause the sample to dry out, resulting in a short sample preservation period, which is difficult to meet the actual needs of long-distance sample transportation and long-term archiving in remote areas.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an endometrial cancer screening kit with long-term stable sample preservation function, comprising a kit body, wherein a trapezoidal storage rack is provided inside the kit body, a tube groove is provided at the top of the trapezoidal storage rack, a sealed sample tube is provided inside the tube groove, an intelligent control structure is provided on the front side of the kit body, a cooling structure is provided on the rear side of the kit body, and a moisture-absorbing sealing structure is provided on the top of the kit body;

[0007] The cooling structure includes a semiconductor cooling chip embedded in the rear of the reagent kit body. The cooling end of the semiconductor cooling chip is located inside the reagent kit body. Heat dissipation fins are provided on the outer side of the semiconductor cooling chip. A temperature sensor is provided on the left side of the heat dissipation fins. A mesh frame is attached to the outer side of the reagent kit body. A silent fan is provided inside the mesh frame. The silent fan is located behind the heat dissipation fins. The silent fan, temperature sensor, and semiconductor cooling chip are all electrically connected to the intelligent control structure.

[0008] Preferably, the moisture-absorbing sealing structure includes a sealing cap hinged to the top of the reagent kit, a magnetic strip embedded in the top of the reagent kit, and a magnetic strip embedded in the bottom of the sealing cap, the magnetic strip being magnetically connected to the magnetic strip.

[0009] Preferably, a hollow frame is fixedly connected to the top side inside the sealing cover, and a moisture-proof box is slidably connected inside the hollow frame. The left side of the moisture-proof box penetrates the left side inside the sealing cover, and a through hole is opened on the bottom side inside the moisture-proof box.

[0010] Preferably, the interior of the moisture-proof box is provided with a color-changing silica gel desiccant, and a transparent plate is embedded in the top of the sealing cover, with the transparent plate located on top of the moisture-proof box and the color-changing silica gel desiccant.

[0011] Preferably, the intelligent control structure includes a microprocessor disposed on the front side of the reagent kit, a display controller disposed on the top of the microprocessor, and the display controller, a silent fan, a temperature sensor and a semiconductor cooling chip are all electrically connected to the microprocessor.

[0012] Preferably, a temperature and humidity sensor is provided on the front side of the reagent kit, the sensing end of the temperature and humidity sensor is located inside the reagent kit, and an alarm light is provided on the top of the display controller. Both the alarm light and the temperature and humidity sensor are electrically connected to the microprocessor.

[0013] Preferably, a buffer pad is provided on the bottom side of the reagent kit body, and the top of the buffer pad is in contact with the bottom of the sealed sample tube.

[0014] Preferably, the bottom of the reagent kit is provided with a ventilated placement box, and a storage battery is provided inside the ventilated placement box. The storage battery is electrically connected to a temperature and humidity sensor, an alarm light, a microprocessor, a display controller, a silent fan, a temperature sensor, and a semiconductor cooling chip. A charging interface is provided on the left side of the ventilated placement box, and the charging interface is electrically connected to the storage battery.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application incorporates a trapezoidal storage rack, sealed sample tubes, an intelligent control structure, and a cooling structure. The intelligent control structure can automatically detect the internal temperature and humidity of the reagent kit and precisely regulate the start and stop of the semiconductor cooling chip based on the internal temperature signal to stably maintain the optimal storage temperature of 2-8℃. This prevents the degradation of nucleic acids and proteins in screening samples such as endometrial tissue and blood inside the sealed sample tubes due to temperature fluctuations. The temperature sensor specifically detects the conduction heat dissipation temperature at the heat sink fins. When the temperature exceeds the predetermined range, the intelligent control structure activates a silent fan for efficient heat dissipation. Once the temperature stabilizes, the fan is turned off to save energy. At the same time, the tube slots of the trapezoidal storage rack can stably hold the sealed sample tubes, reducing the impact of shaking during transportation on the samples. This solves the problems of temperature control failure and easy sample degradation in traditional reagent kits, meeting the needs of long-distance transportation and long-term archiving.

[0017] 2. This application, by setting up a moisture-absorbing sealing cap structure, can not only enhance the overall sealing of the reagent kit and prevent leakage and external moisture intrusion in conjunction with the sealed sample tube, but also stabilize and regulate the internal humidity, avoiding bacterial growth in high humidity or sample drying due to low humidity. This solves the sample contamination problem caused by the lack of sealing and humidity control in existing reagent kits, and extends the sample preservation period. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the endometrial cancer screening kit with long-term sample stability preservation function of this utility model.

[0019] Figure 2 This is a structural diagram of the reagent kit of this utility model;

[0020] Figure 3 This is a structural diagram of the trapezoidal storage rack of this utility model;

[0021] Figure 4 This is a structural diagram of the refrigeration structure of this utility model;

[0022] Figure 5 This is a structural diagram of the moisture-absorbing sealing cap structure of this utility model;

[0023] Figure 6 This is a structural diagram of the intelligent control structure of this utility model.

[0024] In the diagram: 1. Reagent kit; 2. Trapezoidal storage rack; 3. Tube slot; 4. Sealed sample tube; 5. Intelligent control structure; 501. Microprocessor; 502. Display controller; 503. Temperature and humidity sensor; 504. Warning light; 6. Cooling structure; 601. Semiconductor cooling chip; 602. Heat sink; 603. Temperature sensor; 604. Wire frame; 605. Silent fan; 7. Moisture-absorbing sealing structure; 701. Sealing cap; 702. Magnetic strip; 703. Magnetic strip; 704. Hollow frame; 705. Moisture-proof box; 706. Color-changing silica gel desiccant; 707. Transparent plate; 8. Cushion pad; 9. Ventilated placement box; 10. Battery; 11. Charging interface. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 The present invention provides the following technical solution:

[0027] An endometrial cancer screening kit with long-term stable sample preservation function includes a kit body 1, a trapezoidal storage rack 2 inside the kit body 1, a tube groove 3 on the top of the trapezoidal storage rack 2, a sealed sample tube 4 inside the tube groove 3, an intelligent control structure 5 on the front side of the kit body 1, a cooling structure 6 on the rear side of the kit body 1, and a moisture-absorbing sealing structure 7 on the top of the kit body 1.

[0028] The cooling structure 6 includes a semiconductor cooling chip 601 embedded in the rear side of the reagent kit body 1. The cooling end of the semiconductor cooling chip 601 is located inside the reagent kit body 1. A heat dissipation fin 602 is provided on the outer side of the semiconductor cooling chip 601. A temperature sensor 603 is provided on the left side of the heat dissipation fin 602. A mesh frame 604 is attached to the outer side of the reagent kit body 1. A silent fan 605 is provided inside the mesh frame 604. The silent fan 605 is located behind the heat dissipation fin 602. The silent fan 605, the temperature sensor 603, and the semiconductor cooling chip 601 are all electrically connected to the intelligent control structure 5.

[0029] In this embodiment: by setting up a reagent kit 1, a trapezoidal storage rack 2, a tube groove 3, a sealed sample tube 4, an intelligent control structure 5, a cooling structure 6, and a moisture-absorbing sealing structure 7, screening samples such as endometrial tissue and blood are placed into the sealed sample tube 4 during use, and then placed into the tube groove 3 of the trapezoidal storage rack 2. The tube groove 3 provides a stable limit for the sealed sample tube 4, reducing shaking during transportation. The moisture-absorbing sealing structure 7 is then closed to enhance the overall sealing of the reagent kit 1. The intelligent control structure 5 monitors the internal temperature and humidity of the reagent kit 1 in real time. When the internal temperature deviates from the optimal range of 2-8℃, the intelligent control structure 5 triggers the semiconductor cooling chip 601 to start, and its cooling end releases cold energy into the interior. To maintain a low-temperature environment, the temperature sensor 603 continuously monitors the temperature of the heat sink 602. If the temperature exceeds the preset value, the intelligent control structure 5 drives the silent fan 605 inside the mesh frame 604 to accelerate the heat exchange between the heat sink 602 and the outside air, ensuring the efficient operation of the semiconductor cooling chip 601. After the temperature stabilizes, the silent fan 605 automatically shuts off to save energy. The moisture-absorbing sealing structure 7 simultaneously regulates the internal humidity during the sealing process to prevent bacteria growth in high humidity or sample drying due to low humidity. Combined with the leak-proof design of the sealed sample tube 4, it prevents sample contamination. The entire process achieves stable preservation of samples during long-distance transportation or long-term archiving through the coordinated operation of various structures.

[0030] Specifically, such as Figure 5 As shown, the moisture-absorbing sealing structure 7 includes a sealing cap 701 hinged to the top of the reagent kit 1, a magnetic strip 702 embedded in the top of the reagent kit 1, and a magnetic strip 703 embedded in the bottom of the sealing cap 701. The magnetic strip 703 is magnetically connected to the magnetic strip 702.

[0031] Specifically, such as Figure 5 As shown, a hollow frame 704 is fixedly connected to the top side inside the sealing cover 701, and a moisture-proof box 705 is slidably connected inside the hollow frame 704. The left side of the moisture-proof box 705 penetrates the left side inside the sealing cover 701, and a through hole is opened on the bottom side inside the moisture-proof box 705.

[0032] Specifically, such as Figure 5 As shown, the interior of the moisture-proof box 705 contains a color-changing silica gel desiccant 706, and the top of the sealing cover 701 is inlaid with a transparent plate 707, which is located on top of the moisture-proof box 705 and the color-changing silica gel desiccant 706.

[0033] In this embodiment: by setting a moisture-absorbing sealing structure 7, the sealing cap 701 and the reagent kit 1 are magnetically attracted by the magnetic strip 702 and the magnet strip 703, forming a tight seal after closing to prevent external moisture from entering. A moisture-proof box 705 is slidably set in the hollow frame 704 inside the sealing cap 701. The color-changing silica gel desiccant 706 inside the moisture-proof box 705 absorbs the moisture inside the reagent kit 1 through the bottom through hole, maintaining stable humidity. When the color-changing silica gel desiccant 706 changes color due to moisture absorption, it can be directly observed through the transparent plate 707 on the top of the sealing cap 701, making it easy to remove the moisture-proof box 705 for timely replacement, which not only ensures continuous moisture absorption but also simplifies maintenance operations.

[0034] Specifically, such as Figure 6 As shown, the intelligent control structure 5 includes a microprocessor 501 disposed on the front side of the reagent kit body 1. A display controller 502 is disposed on the top of the microprocessor 501. The display controller 502, the silent fan 605, the temperature sensor 603 and the semiconductor cooling chip 601 are all electrically connected to the microprocessor 501.

[0035] Specifically, such as Figure 6 As shown, a temperature and humidity sensor 503 is provided on the front side of the reagent kit 1. The sensing end of the temperature and humidity sensor 503 is located inside the reagent kit 1. An alarm light 504 is provided on the top of the display controller 502. Both the alarm light 504 and the temperature and humidity sensor 503 are electrically connected to the microprocessor 501.

[0036] In this embodiment: by setting up an intelligent control structure 5, the microprocessor 501 serves as the control core, receiving real-time temperature and humidity data from the temperature and humidity sensor 503 (the sensing end is located inside the reagent kit 1), and visually displaying it through the display controller 502. When the internal temperature deviates from the range of 2-8℃, the microprocessor 501 drives the semiconductor cooling chip 601 to start cooling. At the same time, the temperature sensor 603 at the heat sink 602 transmits the temperature signal to the microprocessor 501. If the temperature exceeds the standard, the microprocessor 501 triggers the silent fan 605 to run and dissipate heat. After the temperature recovers, the fan automatically shuts off. If the abnormal temperature and humidity continue to exceed the threshold, the warning light 504 lights up to alarm, realizing intelligent monitoring and dynamic adjustment.

[0037] Specifically, such as Figure 3 As shown, a buffer pad 8 is provided on the bottom side inside the reagent kit 1, and the top of the buffer pad 8 is in contact with the bottom of the sealed sample tube 4.

[0038] Specifically, such as Figure 6As shown, a ventilated placement box 9 is provided at the bottom of the reagent kit 1. A storage battery 10 is provided inside the ventilated placement box 9. The storage battery 10 is electrically connected to a temperature and humidity sensor 503, an alarm light 504, a microprocessor 501, a display controller 502, a silent fan 605, a temperature sensor 603, and a semiconductor cooling chip 601. A charging interface 11 is provided on the left side of the ventilated placement box 9. The charging interface 11 is electrically connected to the storage battery 10.

[0039] In this embodiment: by setting up a buffer pad 8, a ventilated placement box 9, and a charging interface 11, the buffer pad 8 is attached to the bottom inside the reagent kit 1 and directly contacts the bottom of the sealed sample tube 4. It cushions the vibration during transportation or movement through its own elasticity, avoiding damage to the sample tube by collision. The ventilated placement box 9 has a built-in battery 10 to power all electrical components such as the temperature and humidity sensor 503 and the microprocessor 501. The ventilation design of the ventilated placement box 9 ensures heat dissipation of the battery 10. The charging interface 11 can be connected to an external power source to charge the battery 10, ensuring that the device can continue to work in scenarios without an external power source (such as long-distance transportation), thus improving the flexibility of use.

[0040] Working principle: In the use of the endometrial cancer screening kit with long-term stable sample preservation function, the screening samples such as endometrial tissue and blood are first loaded into the sealed sample tube 4. Then, the sealed sample tube 4 is placed into the tube groove 3 of the trapezoidal storage rack 2. The tube groove 3 provides a stable limit for the sealed sample tube 4. At the same time, the buffer pad 8 on the bottom side of the kit body 1 contacts the bottom of the sealed sample tube 4, and its own elasticity further buffers the vibration during transportation or movement, preventing the sealed sample tube 4 from being damaged by collision. Next, the sealing cap 701, which is hinged to the top of the kit body 1, is closed. The magnetic strip 703 at the bottom of the sealing cap 701 is connected to the magnetic strip 703 at the top of the kit body 1. The magnetic strip 702 forms a tight seal to prevent external moisture from entering. A moisture-proof box 705 is slidably installed in the hollow frame 704 on the top side inside the sealing cover 701. The color-changing silica gel desiccant 706 inside the box absorbs moisture from inside the reagent kit 1 through a bottom opening, maintaining stable humidity. When the color-changing silica gel desiccant 706 changes color due to moisture absorption, it can be directly observed through the transparent plate 707 on the top of the sealing cover 701, facilitating timely removal and replacement of the moisture-proof box 705 to ensure continuous moisture absorption. Simultaneously, the intelligent control structure 5 on the front side of the reagent kit 1 begins to operate: the microprocessor 501 acts as the control core, receiving data from the temperature and humidity sensor 503 (sensor end). The microprocessor 501, located inside the reagent kit 1, receives real-time temperature and humidity data, which is then visualized via the display controller 502. When the internal temperature deviates from the optimal range of 2-8℃, the microprocessor 501 drives the thermoelectric cooler 601 to activate, releasing cooling energy into the interior to maintain a low-temperature environment. Simultaneously, the temperature sensor 603 at the heat sink 602 transmits the temperature signal to the microprocessor 501. If the temperature exceeds the limit, the microprocessor 501 triggers the silent fan 605 within the frame 604 to operate, accelerating heat exchange between the heat sink 602 and the outside air, ensuring efficient operation of the thermoelectric cooler 601. Once the temperature stabilizes, the silent fan 605... 5. Automatic shutdown to save energy. If the temperature and humidity continue to exceed the threshold, the warning light 504 on the top of the display controller 502 will light up to alarm, realizing intelligent monitoring and dynamic adjustment. The battery 10 in the ventilation box 9 at the bottom of the reagent kit 1 powers all electrical components such as the temperature and humidity sensor 503, microprocessor 501, and silent fan 605. The ventilation design ensures heat dissipation of the battery 10. The charging interface 11 can be connected to an external power source to charge the battery 10, ensuring that the equipment can continue to work in scenarios without external power (such as long-distance transportation). The entire process achieves stable preservation of samples during long-distance transportation or long-term archiving through the coordinated operation of various structures.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An endometrial cancer screening kit with long-term sample stability preservation function, comprising a kit body (1), characterized in that: The reagent kit (1) is provided with a trapezoidal storage rack (2) inside, and a tube groove (3) is provided on the top of the trapezoidal storage rack (2). A sealed sample tube (4) is provided inside the tube groove (3). A smart control structure (5) is provided on the front side of the reagent kit (1). A cooling structure (6) is provided on the rear side of the reagent kit (1). A moisture-absorbing sealing structure (7) is provided on the top of the reagent kit (1). The cooling structure (6) includes a semiconductor cooling chip (601) embedded in the rear side of the reagent kit body (1). The cooling end of the semiconductor cooling chip (601) is located inside the reagent kit body (1). A heat dissipation fin (602) is provided on the outer side of the semiconductor cooling chip (601). A temperature sensor (603) is provided on the left side of the heat dissipation fin (602). A mesh frame (604) is attached to the outer side of the reagent kit body (1). A silent fan (605) is provided inside the mesh frame (604). The silent fan (605) is located behind the heat dissipation fin (602). The silent fan (605), the temperature sensor (603), and the semiconductor cooling chip (601) are all electrically connected to the intelligent control structure (5).

2. The endometrial cancer screening kit with long-term sample stability preservation function according to claim 1, characterized in that: The moisture-absorbing sealing structure (7) includes a sealing cap (701) hinged to the top of the reagent kit body (1), a magnetic strip (702) is embedded in the top of the reagent kit body (1), and a magnetic strip (703) is embedded in the bottom of the sealing cap (701), and the magnetic strip (703) is magnetically connected to the magnetic strip (702).

3. The endometrial cancer screening kit with long-term sample stability preservation function according to claim 2, characterized in that: A hollow frame (704) is fixedly connected to the top side inside the sealing cover (701). A moisture-proof box (705) is slidably connected inside the hollow frame (704). The left side of the moisture-proof box (705) penetrates the left side inside the sealing cover (701). A through hole is opened on the bottom side inside the moisture-proof box (705).

4. The endometrial cancer screening kit with long-term sample stability preservation function according to claim 3, characterized in that: The moisture-proof box (705) is equipped with a color-changing silica gel desiccant (706) inside, and a transparent plate (707) is embedded in the top of the sealing cover (701). The transparent plate (707) is located on top of the moisture-proof box (705) and the color-changing silica gel desiccant (706).

5. The endometrial cancer screening kit having a function of stably preserving a sample for a long period according to claim 1, characterized by: The intelligent control structure (5) includes a microprocessor (501) disposed on the front side of the reagent kit (1). A display controller (502) is disposed on the top of the microprocessor (501). The display controller (502), the silent fan (605), the temperature sensor (603) and the semiconductor cooling chip (601) are all electrically connected to the microprocessor (501).

6. The endometrial cancer screening kit with long-term sample stability preservation function according to claim 5, characterized in that: A temperature and humidity sensor (503) is provided on the front side of the reagent kit (1). The sensing end of the temperature and humidity sensor (503) is located inside the reagent kit (1). A warning light (504) is provided on the top of the display controller (502). Both the warning light (504) and the temperature and humidity sensor (503) are electrically connected to the microprocessor (501).

7. The endometrial cancer screening kit with long-term sample stability preservation function according to claim 1, characterized in that: A buffer pad (8) is provided on the bottom side inside the reagent kit (1), and the top of the buffer pad (8) is in contact with the bottom of the sealed sample tube (4).

8. The endometrial cancer screening kit with long-term sample stability preservation function according to claim 6, characterized in that: The bottom of the test kit (1) is provided with a ventilated placement box (9), and a storage battery (10) is provided inside the ventilated placement box (9). The storage battery (10) is electrically connected to a temperature and humidity sensor (503), a warning light (504), a microprocessor (501), a display controller (502), a silent fan (605), a temperature sensor (603), and a semiconductor cooling chip (601). A charging interface (11) is provided on the left side of the ventilated placement box (9), and the charging interface (11) is electrically connected to the storage battery (10).