A portable low-temperature sealed fresh-keeping device for severed finger ex situ preservation

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a portable low temperature sealing fresh -keeping device for severed finger preservation, box body, the box body is open -ended lower end closed -type structure, the box body still includes the limiting groove for placing the severed finger, the top cover, the bottom cover makes the bottom cover and the top between the box body form low temperature cavity, the through -hole no. 1 is set up on the lateral wall of box body and is connected with low temperature cavity, the top cover includes: the temperature gauge time module is installed in the top cover, the upper sealing ring is installed in the lower end edge of top cover, the water bag and refrigerant medium are placed in the low temperature cavity, the water bag one side is equipped with the easily torn part, is connected with the drawstring on the easily torn part, the drawstring one end passes through the through -hole no. 1 and sets up. The utility model has the beneficial effects that: simple structure is practical, can avoid the frostbite of severed finger, can monitor the preservation temperature in real time and record the time length of preservation, the sealing moisture -proof property is good, can prevent pollution dehydration, and refrigeration is started conveniently and safely, is suitable for the severed finger preservation and the transfer needs.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a portable low-temperature sealing and preservation device for the preservation of severed fingers. Background Technology

[0002] In emergency department clinical practice, finger amputation is quite common, and the quality of preservation after the severed finger is removed directly determines the success rate of subsequent replantation surgery.

[0003] Currently, the standard clinical method for preserving severed fingers is to wrap the severed finger in sterile, moist gauze, place it in a regular plastic bag or simple plastic box, and then place an ice pack on the outside for cooling and preservation. However, the above method has the following drawbacks:

[0004] 1. Direct contact between ice packs and severed fingers can easily cause frostbite to the severed finger tissue, damage vascular endothelial cells, destroy the basis for replantation, and the temperature fluctuates greatly with environmental changes, making it impossible to maintain the suitable low temperature environment required for the preservation of severed fingers.

[0005] 2. A severed finger wrapped in damp gauze dries quickly in a regular plastic bag or simple plastic box, leading to dehydration and cell necrosis of the severed finger tissue, thus reducing the replantation survival rate.

[0006] 3. Without a dedicated sealing structure, it is easy for the body fluids of the severed finger to leak out, allowing external bacteria and contaminants to enter;

[0007] 4. The severed finger has no dedicated restraint structure inside the plastic box, and it is prone to shaking and friction during transportation, causing secondary damage to the severed finger and affecting the replantation effect;

[0008] 5. Without a dedicated device for recording the time and temperature of the severed finger removed from the body, medical staff cannot accurately record the duration of the finger removal and the storage temperature, which is not conducive to subsequent surgical evaluation and interdepartmental handover.

[0009] 6. Ice packs or plastic boxes need to be frozen in advance, which makes storage and retrieval cumbersome and may cause cross-contamination risks. Utility Model Content

[0010] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers, so as to solve the above problems.

[0011] The technical solution of this utility model is achieved as follows: A portable low-temperature sealed preservation device for the ex vivo preservation of severed fingers, comprising a box body with an open bottom and a closed top structure, and the box body further comprising...

[0012] A limiting groove, recessed into the upper end of the box, is used to place the severed finger;

[0013] The top cover is installed on one side of the box body to seal the limiting groove;

[0014] The bottom cover is installed on the opening of the box to close the opening and form a low-temperature cavity between the bottom cover and the top of the box.

[0015] One through-hole is located on the side wall of the box and communicates with the low-temperature cavity;

[0016] The top cover includes:

[0017] The temperature measurement and timing module is installed inside the top cover and is used for timing and temperature display;

[0018] The upper sealing ring is installed on the lower edge of the top cover, and the upper edge of the box body has an upper sealing groove that mates with the upper sealing ring.

[0019] The low-temperature cavity contains a water tank and a refrigerant. The water tank is filled with water and has an easy-tear section on one side. A pull rope is connected to the easy-tear section, and one end of the pull rope passes through a through hole.

[0020] A sealing plug for sealing the through hole is threaded onto the pull rope.

[0021] Furthermore, the refrigerant is carbamide.

[0022] Furthermore, the limiting groove is a cross-shaped groove, including a transverse groove and a longitudinal groove, and the bottom of both the transverse groove and the longitudinal groove is arc-shaped.

[0023] Furthermore, the top cover is hinged to the upper edge of the outer side of the box body;

[0024] A hollow layer is provided between the inner wall and the outer wall of the box, and the lower end of the hollow layer is open.

[0025] Among them, threaded columns are arranged along the circumference of the box body inside the hollow layer, and the threaded columns are integrally connected to the box body.

[0026] The bottom cover is fixed by screws to threaded posts to seal the opening at the bottom of the box and the hollow layer.

[0027] Furthermore, the hollow layer is filled with a heat-insulating medium.

[0028] Furthermore, the top cover includes:

[0029] A receiving slot is provided at the top of the top cover;

[0030] A translucent cover is placed over the receiving groove to seal it.

[0031] The temperature measuring and timing module is installed in the receiving slot, and the upper part of the semi-transparent cover plate away from the temperature measuring and timing module has a marking area printed on it.

[0032] Furthermore, the temperature measurement and timing module includes:

[0033] Control panel, installed at the bottom of the receiving tank;

[0034] Display screen;

[0035] Timer;

[0036] thermometer;

[0037] The display screen, timer, and thermometer are mounted on the control panel and are electrically connected to the control panel. The temperature on the thermometer and the time on the timer are displayed on the display screen under the control of the control panel.

[0038] Furthermore, the top cover also includes:

[0039] Two through holes are provided on one side of the bottom of the receiving groove;

[0040] A heat-conducting plate, one end of which is embedded in the second through hole;

[0041] The upper end of the heat-conducting plate is equipped with a detection probe that is electrically connected to a thermometer.

[0042] Furthermore, a lower sealing ring is installed along the inner edge of the upper end of the bottom cover, and anti-slip texture is provided on the lower end surface of the bottom cover.

[0043] Furthermore, a flip-up lid buckle is installed on one side of the outer edge of the top cover, and a buckle seat that cooperates with the lid buckle is installed on the upper edge of the outer side of the box.

[0044] The beneficial effects of this utility model are as follows:

[0045] The preservation device has a simple and practical structure, which can prevent frostbite of severed fingers, monitor the storage temperature in real time and record the time of removal from the body, has good sealing and moisture retention, can prevent contamination and dehydration, and has convenient and safe cooling start-up. It is suitable for the preservation and transportation needs of severed fingers. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the overall structure of the preservation device according to a specific embodiment of the present utility model;

[0048] Figure 2 This is a schematic diagram of the exploded structure of the preservation device according to a specific embodiment of this utility model;

[0049] Figure 3 This is a schematic diagram of the top cover structure according to a specific embodiment of the present utility model;

[0050] Figure 4 This is a schematic diagram of the box structure according to a specific embodiment of the present utility model;

[0051] Figure 5 This is a schematic diagram of the bottom structure of the box in a specific embodiment of this utility model. Detailed Implementation

[0052] 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.

[0053] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0054] Example 1:

[0055] like Figures 1 to 5 As shown, this utility model discloses a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. The box body 1 has a structure with an open bottom and a closed top. The box body 1 also includes...

[0056] The limiting groove 2 is recessed into the upper end of the box body 1 to place the severed finger;

[0057] Top cover 3 is installed on one side of the outer side of box body 1 to seal the limiting groove 2;

[0058] The bottom cover 4 is installed on the opening of the box body 1 to close the opening, so that a low temperature cavity 5 is formed between the bottom cover 4 and the top of the box body 1.

[0059] Through hole 6 is provided on the side wall of box 1 and communicates with low temperature cavity 5;

[0060] The top cover 3 includes:

[0061] The temperature measurement and timing module 31 is installed inside the top cover 3 and is used for timing and temperature display.

[0062] The upper sealing ring 32 is embedded in the lower edge of the top cover 3, and the upper edge of the box body 1 has an upper sealing groove 33 that mates with the upper sealing ring 32.

[0063] The low-temperature cavity 5 contains a water tank 51 and a refrigerant. The water tank 51 is filled with water. One side of the water tank has an easy-tear section, and a pull rope is connected to the easy-tear section. One end of the pull rope passes through the through hole 6.

[0064] A sealing plug 7 for sealing the through hole 6 is threaded onto the pull rope.

[0065] In the above scheme, the sealing plug is a rubber sealing plug with an I-shaped longitudinal section to facilitate stable fixing on the through hole one;

[0066] In the above scheme, specifically, the middle of the sealing plug has a micro channel for the smooth sliding of the pull rope. The pull rope extends out of the low temperature chamber through the micro channel for medical personnel to pull. To further facilitate the operation of medical personnel, a larger auxiliary pull rope can be tied to the end of the pull rope extending out of the sealing plug.

[0067] In addition, the above-mentioned channel is designed with a small aperture, and the sealing plug has good elasticity. After the pull rope is inserted into the micro channel, it relies on the elasticity of the sealing plug to tightly fit and wrap the pull rope, automatically sealing the gap between the channel and the pull rope. This can effectively prevent the medium inside the low temperature chamber from leaking outward, and the sealing and leak-proof effect is good.

[0068] By adopting the above technical solution, the structure of the box body, limiting groove, top cover and bottom cover makes the preservation device form a layered structure. The limiting groove is used to place the severed finger, and the low temperature chamber is independently temperature controlled, so as to achieve layered isolation between the severed finger placement area and the refrigeration area to avoid freezing.

[0069] The top cover integrates a temperature measurement and timing module, which can monitor the temperature of the severed finger in real time and record the duration of removal from the body, meeting the requirements of clinical precision.

[0070] The top cover, together with the sealing ring and the upper sealing groove, can effectively close the limiting groove, block external pollution, prevent body fluid leakage, maintain internal humidity, and avoid dehydration of severed fingers.

[0071] The cryogenic chamber contains a built-in water bag, a cooling medium, and a pull rope triggering structure. Pulling the rope will tear the water bag, allowing for rapid on-site cooling without pre-cooling, simplifying emergency procedures and avoiding cross-contamination.

[0072] In summary, the above-mentioned preservation device has a simple and practical structure, can avoid frostbite to severed fingers, can monitor the preservation temperature in real time and record the time of removal from the body, has good sealing and moisture retention, can prevent contamination and dehydration, and has convenient and safe cooling start-up, making it suitable for the preservation and transportation needs of severed fingers.

[0073] Example 2:

[0074] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0075] Furthermore, the refrigerant is carbonamide (not shown in the figure).

[0076] By adopting the above technical solution, carbonamide, i.e. urea, is used as a refrigerant. When mixed with water, the endothermic reaction is mild and the cooling rate is controllable.

[0077] No pre-freezing is required, making it suitable for the needs of timely emergency care.

[0078] After the cooling system is activated, the temperature of the limiting groove area can be stably maintained at 4°C for 2 to 4 hours, which meets the time requirements for pre-hospital transport, inter-departmental handover within the hospital, and preoperative temporary storage.

[0079] Meanwhile, the layered insulation and buffer structure of the preservation device prevents direct contact with the severed finger, avoiding frostbite caused by drastic cooling. Furthermore, carbonamide is low in cost, non-toxic, and stable, making it suitable for safe use in medical settings and easy to dispose of.

[0080] Example 3:

[0081] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0082] Furthermore, the limiting groove 2 is a cross-shaped groove, including a transverse groove and a longitudinal groove. The bottom of both the transverse groove and the longitudinal groove is arc-shaped, and the moisturizing pad is laid on the bottom of the transverse groove.

[0083] Specifically, in the above technical solution, the inner wall of the limiting groove is designed to be smooth to avoid friction damage to the severed finger;

[0084] In the above technical solution, specifically, the transverse groove is adapted to the shape of adult and child fingers, with a length of about 7cm and a width of about 1.8cm, which can better limit the severed finger, prevent the severed finger from shaking and rubbing during transportation, and avoid secondary damage.

[0085] In the above technical solution, when the preservation device is turned on, a moisturizing pad can be placed in the horizontal groove. The moisturizing pad is a disposable sterile clean water moisturizing cotton pad. The cotton pad is pre-soaked in sterile physiological saline before leaving the factory and is sealed and packaged to ensure sterility. It can continuously provide a moist environment for the severed finger to further prevent the severed finger tissue from dehydrating and dying.

[0086] By adopting the above technical solution, the longitudinal groove facilitates the storage and retrieval of the severed finger in the transverse groove, and the arc-shaped design of the bottom of the transverse groove and the limiting groove can fit the physiological curvature of the severed finger, which can stably lock and fix the severed finger.

[0087] Example 4:

[0088] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0089] Furthermore, the top cover 3 is hinged to the upper outer edge of the box body 1;

[0090] A hollow layer 21 is provided between the inner and outer walls of the box 1, and the lower end of the hollow layer 21 is open.

[0091] Among them, threaded posts 22 are arranged around the box body 1 in the hollow layer 21, and the threaded posts 22 are integrally connected to the box body 1.

[0092] The bottom cover 4 is fixed to the threaded post 22 by screws to seal the lower opening of the box 1 and the hollow layer 21.

[0093] By adopting the above technical solution, the top cover is hinged to the box body, making it easy to open and close, and facilitating quick removal and placement of the severed finger;

[0094] The hollow layer with internal threaded columns is integrally formed with the box body and fixed with screws to the bottom cover, which is stable, easy to disassemble and assemble, and can be quickly assembled to form a closed low temperature cavity.

[0095] Example 5:

[0096] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0097] Furthermore, the hollow layer 21 is filled with a heat insulation medium 23.

[0098] In the above technical solution, specifically, the heat insulation medium is heat insulation cotton;

[0099] By adopting the above technical solution, it is possible to effectively isolate external ambient heat, prevent heat from being conducted to the low-temperature cavity, reduce temperature fluctuations in the low-temperature cavity, extend the duration of low temperature maintenance, ensure the stability of the low-temperature environment during long-term transport of severed fingers, and adapt to long-distance emergency transport scenarios.

[0100] Example 6:

[0101] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0102] Furthermore, the top cover 3 includes:

[0103] The receiving groove 333 is located at the upper end of the top cover 3;

[0104] A translucent cover plate 34 is placed over the receiving groove 333 to seal the receiving groove 333;

[0105] The temperature measuring and timing module 31 is installed in the receiving groove 333, and the upper end of the semi-transparent cover plate 34 away from the temperature measuring and timing module 31 has a marking area 300 printed on it.

[0106] In the above technical solution, the translucent cover is fixed to the opening of the receiving groove by adhesive bonding or thermal welding;

[0107] By adopting the above technical solution, the temperature measurement and timing module is installed in the receiving groove and does not interfere with the limiting groove. The semi-transparent cover can not only seal and protect the module to avoid damage from bumps, but also not block the display interface, making it easy for medical staff to read temperature and time data intuitively.

[0108] The labeling area can be printed with the time of finger removal and patient information as needed, making it easier for medical staff to fill in relevant patient information, achieving accurate matching between the severed finger and the patient, and avoiding confusion during the handover process.

[0109] Example 7:

[0110] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0111] Furthermore, the temperature measurement and timing module 31 includes:

[0112] The control panel is installed at the bottom of the receiving slot 333;

[0113] Display screen;

[0114] Timer;

[0115] thermometer;

[0116] The display screen, timer, and thermometer are mounted on the control panel and are electrically connected to the control panel. The temperature on the thermometer and the time on the timer are displayed on the display screen under the control of the control panel.

[0117] In the above technical solution, a button battery is installed on the control panel to power the temperature measurement and timing module;

[0118] In the above technical solution, four support feet and two support blocks are integrally formed in the receiving groove, and the control panel is snapped between the support feet and the support blocks to fix the control panel.

[0119] In the above technical solution, the display screen is a temperature and time cycle display screen, which can cycle and display the real-time temperature and cumulative time away from the body according to a preset cycle, which greatly reduces the overall size and number of parts of the temperature measurement and timing module; simplifies the circuit structure, reduces power consumption and manufacturing costs, while reducing the space occupied by the module, and is adapted to the small-sized receiving slot of the top cover for installation, resulting in a more compact structure.

[0120] In the above technical solution, the control panel is also equipped with a capacitive sensing switch. When a finger touches the upper part of the translucent cover near the capacitive sensing switch area, the temperature measurement and timing module is turned on and off. This is existing technology and will not be described in the manual.

[0121] By adopting the above technical solution, the electrical connection of each component is integrated, which can collect temperature data in the limiting groove in real time, record the duration of finger removal from the body synchronously, and display it on the screen. No additional equipment is required, the operation is simple, and the data reading is intuitive. It solves the defects of traditional methods that do not have dedicated monitoring components, and provides quantitative basis for clinical evaluation.

[0122] Example 8:

[0123] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0124] Furthermore, the top cover 3 also includes:

[0125] Through hole 2 35 is opened on one side of the bottom of receiving groove 333;

[0126] The heat-conducting plate 36 has one end embedded in the through hole 35;

[0127] The upper end of the heat-conducting plate 36 is equipped with a detection probe that is electrically connected to a thermometer.

[0128] In the above technical solution, the heat-conducting plate is a stainless steel heat-conducting plate;

[0129] In the above technical solution, in order to further improve the temperature detection accuracy, a heat insulation cotton block can be attached to the heat conduction plate, so that the detection probe is sandwiched between the heat conduction plate and the heat insulation cotton block, reducing the influence of the external temperature.

[0130] By adopting the above technical solution, the heat conduction plate can quickly and accurately conduct the temperature in the limiting groove to the detection probe, avoiding the problems of temperature transmission lag and large monitoring errors, improving the accuracy of temperature monitoring, ensuring real-time feedback of the ambient temperature of the severed finger, and ensuring the reliability of monitoring data.

[0131] Example 9:

[0132] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0133] Furthermore, a lower sealing ring 41 is installed along the inner edge of the upper end of the bottom cover 4, and anti-slip texture is provided on the lower end surface of the bottom cover 4.

[0134] In the above technical solution, the upper sealing ring and the lower sealing ring are connected and fixed to the top cover and the bottom cover respectively by injection molding or bonding, so as to prevent the sealing ring from falling off during use;

[0135] By adopting the above technical solution, the sealing ring under the bottom cover fits tightly with the opening of the box to form a bottom seal of the low temperature chamber. Combined with the sealing structure of the top cover, the device is sealed around the entire circumference to prevent cold air leakage from the low temperature chamber, enhance the sealing and heat insulation effect, and ensure the stability of the low temperature environment in the sealed low temperature chamber.

[0136] The anti-slip texture increases friction with the placement surface, preventing the device from sliding during transport and improving its stability.

[0137] Example 10:

[0138] This embodiment provides a portable low-temperature sealing and preservation device for the ex vivo preservation of severed fingers. In addition to the technical solutions of the above embodiments, it also has the following technical features.

[0139] Furthermore, a flip-up lid buckle is installed on one side of the outer edge of the top cover 3, and a buckle seat that cooperates with the lid buckle is installed on the upper outer edge of the box body 1.

[0140] By adopting the above technical solution, the cover buckle and the buckle seat cooperate to form a locking structure. After the top cover is closed, it can be firmly locked to prevent the top cover from being opened accidentally during transportation, avoid the exposure and contamination of severed fingers, and prevent failure in low-temperature environments. This improves the sealing stability and safety of the device and is suitable for bumpy transportation scenarios.

[0141] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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. A portable low-temperature sealed preservation device for the ex vivo preservation of severed fingers, comprising a box body (1), characterized in that, The box (1) has an open bottom and a closed top structure. The box (1) also includes The limiting groove (2) is recessed into the upper end of the box body (1) to place the severed finger; The top cover (3) is installed on the outside of the box body (1) to seal the limiting groove (2); The bottom cover (4) is installed on the opening of the box body (1) to close the opening, so that a low temperature cavity (5) is formed between the bottom cover (4) and the top of the box body (1). Through hole 1 (6) is opened on the side wall of the box body (1) and communicates with the low temperature cavity (5); The top cover (3) includes: The temperature measurement and timing module (31) is installed inside the top cover (3) and is used for timing and temperature display; An upper sealing ring (32) is installed on the lower edge of the top cover (3), and an upper sealing groove (33) that matches the upper sealing ring (32) is provided on the upper edge of the box body (1). The low-temperature cavity (5) contains a water bag (51) and a cooling medium. The water bag (51) is filled with water. One side of the water bag (51) has an easy-tear section. A pull rope is connected to the easy-tear section. One end of the pull rope passes through the through hole (6). A sealing plug (7) for sealing the through hole (6) is threaded onto the pull rope.

2. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 1, characterized in that, The refrigerant is carbonamide.

3. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 1, characterized in that, The limiting groove (2) is a cross-shaped groove, including a transverse groove and a longitudinal groove. The bottom of both the transverse groove and the longitudinal groove is arc-shaped.

4. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 1, characterized in that, The top cover (3) is hinged to the upper edge of the outer side of the box body (1); A hollow layer (21) is provided between the inner side wall and the outer side wall of the box (1), and the lower end of the hollow layer (21) is open; Among them, the hollow layer (21) is provided with threaded columns (22) along the circumference of the box (1), and the threaded columns (22) are integrally connected with the box (1); The bottom cover (4) is fixed to the threaded post (22) by screws to close the lower opening of the box (1) and the hollow layer (21).

5. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 4, characterized in that, The hollow layer (21) is filled with a heat insulation medium (23).

6. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 1, characterized in that, The top cover (3) includes: A receiving groove (333) is provided at the upper end of the top cover (3); A translucent cover plate (34) is placed over the receiving groove (333) to close the receiving groove (333). The temperature measuring and timing module (31) is installed in the receiving slot (333), and the upper end of the semi-transparent cover plate (34) away from the temperature measuring and timing module (31) has a marking area (300) printed on it.

7. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 6, characterized in that, The temperature measurement and timing module (31) includes: Control panel, installed at the bottom of the receiving tank (333); Display screen; Timer; thermometer; The display screen, timer, and thermometer are mounted on the control panel and are electrically connected to the control panel. The temperature on the thermometer and the time on the timer are displayed on the display screen under the control of the control panel.

8. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 7, characterized in that, The top cover (3) also includes: Through hole 2 (35) is opened on one side of the bottom of the receiving groove (333); A heat-conducting plate (36) is embedded at one end in a through hole (35); Among them, the upper end of the heat conduction plate (36) is equipped with a detection probe that is electrically connected to the thermometer.

9. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 1, characterized in that, The bottom cover (4) has a lower sealing ring (41) installed on the inner edge of the upper end, and the bottom surface of the bottom cover (4) has anti-slip texture.

10. A portable low-temperature sealing and preservation device for ex vivo preservation of severed fingers according to claim 1, characterized in that, The top cover (3) is fitted with a flip-up lid buckle on one side of its outer edge, and the box body (1) is fitted with a buckle seat that matches the lid buckle on its outer upper edge.

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