Mannitol anti-crystallization heat preservation device in an ambulance

Abstract

The utility model discloses a kind of mannitol anti-crystallization heat preservation devices in emergency ambulance, by power storage pedestal, heat preservation bucket, bag cover etc. Power storage pedestal is powered for heat preservation bucket bottom heating plate after charging, bag cover is screwed in heat preservation bucket by inner thread barrel, mannitol bag is hung on its mounting plate and is fixed using bandage, bottle barrel is connected with mounting plate through hanging connection column, through-hole design is conducive to heat transfer. Temperature sensor monitors temperature in heat preservation bucket in real time, control panel automatically controls heating plate start-stop according to preset value, ensure liquid bath temperature stability. Heat preservation bucket bottom limit block, spring pin and power storage pedestal placement groove, pin hole cooperate to realize firm installation, sealing strip guarantees sealing property. When using, after completing device installation and charging, bagged, bottled mannitol can be placed respectively;When maintaining, replace liquid bath liquid through liquid discharge pipe, disassemble component and clean, effectively prevent mannitol crystallization, suitable for emergency ambulance environment.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a mannitol anti-crystallization and heat preservation device for use in an ambulance. Background Technology

[0002] 20% mannitol injection is a commonly used tissue dehydrating agent and an indispensable routine medicine in ambulances, especially playing a key role in the emergency treatment of patients with intracranial hypertension.

[0003] However, mannitol injection has a significant problem: its solution crystallizes very easily at temperatures below 20°C. Once crystals form, they must be completely dissolved by heating or prolonged shaking before use. This process severely impacts the timeliness of patient treatment, and in emergency situations, every second is crucial to a patient's life. Delays caused by mannitol crystallization can pose significant safety risks. Simultaneously, this greatly increases the workload of nurses; the additional dissolution procedure undoubtedly adds to the burden on medical staff during tense and busy emergency situations.

[0004] Therefore, developing a device that can effectively prevent mannitol crystallization is of great practical significance for clinical emergency care, far superior to dissolving it after crystallization has occurred. Currently, there is an urgent market need for a heat preservation device that can effectively prevent mannitol crystallization and is suitable for use in ambulances. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a mannitol anti-crystallization and heat preservation device for emergency vehicles. Through reasonable structural design and functional configuration, this mannitol anti-crystallization and heat preservation device for emergency vehicles effectively prevents mannitol crystallization, ensures that mannitol injection solution can be used normally at any time during emergency treatment, improves emergency treatment efficiency, and protects the life safety of patients.

[0006] To achieve the above-mentioned technical objectives, this utility model is implemented through the following technical solution:

[0007] A mannitol anti-crystallization and heat preservation device for an ambulance includes: a battery base, an insulated bucket, a hanging bag cover, a bottle container, straps, a temperature sensor, and a control panel;

[0008] A power cord is plugged into one end of the bottom of the battery storage base, and the other end of the power cord is connected to a power source to charge the battery storage base.

[0009] The insulated bucket has an opening at the top and a heating plate at the bottom, and is filled with liquid bath liquid inside. The heating plate is powered by the battery base and is placed on the battery base by insertion. The hanging bag cover is threaded onto the insulated bucket from top to bottom. Several mounting plates are fixedly connected to the upper surface of the hanging bag cover. The mannitol bag is hung below the hanging bag cover and inside the mounting plates. One end of the strap is rotatably sleeved on one end of the mounting plate, and the other end passes through the other end of the mounting plate and is inserted for limiting.

[0010] The bottle holder is a barrel with an opening at the top, and several through holes are provided on the bottom and barrel wall; the bottle holder is rotatably hung on the bottom of several mounting plates, and there is a gap between the bottom of the outer wall and the upper surface of the heating plate.

[0011] The temperature sensor is placed inside the insulated container and measures the temperature information inside the container, transmitting the temperature information to the control panel. The control panel is placed on the outer wall of the insulated container and has a preset temperature inside. The preset temperature is the temperature required to prevent mannitol crystallization. After receiving the temperature information inside the insulated container, the control panel compares it with the preset temperature. When the liquid bath temperature inside the insulated container is higher or lower than the preset temperature, the control panel controls the heating plate to start heating the liquid bath to the preset temperature.

[0012] Furthermore, there are gaps between the mounting plates; the mounting plates are arc-shaped plates; a hanging groove is provided at the bottom end; the hanging groove is an n-shaped through groove with an opening facing downwards; a hanging post is fixedly connected to the outer wall of the bottle holder; the hanging post is inserted into one side of the hanging groove from bottom to top and then rotated to the other side of the hanging groove, hanging in the hanging groove by gravity.

[0013] Furthermore, the wall of the insulated bucket is made of insulation material, and a handle is connected to the outer wall; a drain pipe is fixedly connected to the bottom of the insulated bucket; the drain pipe penetrates the insulated bucket inside and out and extends to the outer wall of the insulated bucket; an on / off valve is installed on the drain pipe; the on / off valve controls the opening and closing of the drain pipe.

[0014] Furthermore, several limiting posts are fixedly connected to the opposite outer walls of several mounting plates; the limiting posts are arranged circumferentially at intervals on the outer walls of the mounting plates; a through insertion hole is provided on one side of the mounting plate; the strap is an elastic, bendable flexible strap with several limiting holes; the limiting holes are arranged linearly at intervals; the strap bends from the inner wall of the mounting plate toward the insertion hole and passes through the insertion hole, and is then limited by the limiting posts inserted into the limiting holes;

[0015] Furthermore, a number of limiting blocks are fixedly installed at the bottom of the insulated bucket; spring pins are installed on the limiting blocks; a recessed placement groove is fixedly connected above the battery base; a number of pin holes adapted to the spring pins are opened on the groove wall of the placement groove; after the limiting blocks are placed in the placement groove, the insulated bucket is limited by the spring pins inserted into the pin holes.

[0016] Furthermore, a handle is fixedly connected to the top of the hanging bag cover, and an internally threaded barrel is provided below it; a sealing strip is fitted around the outer ring of several mounting plates; the hanging bag cover is screwed onto the heat preservation barrel from top to bottom through the internally threaded barrel, and the upper and lower surfaces of the sealing strip contact the top of the heat preservation barrel and the bottom surface of the hanging bag cover, respectively.

[0017] Furthermore, several hooks are installed on the lower surface of the bag cover via a universal ball joint; the mannitol bag is hung below the bag cover via the hooks and secured by the straps.

[0018] Furthermore, the inner wall of the insulated container is provided with several volume scales; the volume scales indicate the volume of the liquid bath liquid contained in the insulated container.

[0019] The beneficial effects of this utility model are:

[0020] The mannitol anti-crystallization and heat preservation device for an ambulance provided by this utility model has the following beneficial effects:

[0021] Effectively prevents crystallization: The liquid in the insulated container is continuously maintained at a preset temperature to prevent mannitol crystallization, which can effectively prevent mannitol injection solution from crystallizing, ensuring that mannitol can be used normally at any time in emergency situations, avoiding delays in emergency treatment due to crystallization, and protecting the patient's life safety.

[0022] Flexible hanging: The design of the bag cap and mounting plate, along with the adjustable straps, can accommodate mannitol bags of different sizes, ensuring a secure hanging position. The bottle holder can be rotated and hung at the bottom of the mounting plate for easy placement of bottled mannitol. Furthermore, the perforations on its bottom and walls facilitate even heat transfer, further ensuring the mannitol's heat retention effect.

[0023] Easy to operate: The handles on the insulated container, the carrying handles on the bag lid, and the drainage pipe and on / off valve make it convenient for medical staff to move, open, close, and change the liquid bath fluid. The intelligent control panel reduces manual intervention and improves the accuracy and convenience of temperature control.

[0024] Stable structure: The various components are connected in a reasonable way, such as the plug-in connection between the insulated container and the battery base, the threaded connection between the bag cover and the insulated container, and the connection between the bottle container and the mounting plate, so that the entire device is stable and can work normally even in the bumpy environment during the ambulance's journey. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of the insulated bucket of this utility model;

[0028] Figure 3 This is a schematic diagram of the combined installation structure of the hanging bag cap and the bottle holder of this utility model;

[0029] Figure 4 This is a front view of the hanging bag cap and the bottle holder of this utility model;

[0030] Figure 5 This is the utility model Figure 4 A sectional view;

[0031] Figure 6 This is a cross-sectional view of the insulated bucket of this utility model;

[0032] The attached diagram lists the components represented by each number as follows:

[0033] Battery base, 11-Power cord, 12-Placement slot, 121-Pin hole

[0034] Insulated container, 21-Heating plate, 22-Drain pipe, 221-On / off valve, 23-Handle, 24-Limit block, 241-Spring pin, 25-Volume scale.

[0035] 31-Hanging bag cap, 311-Hanging groove, 312-Insert strap hole, 313-Limiting post, 32-Internal threaded bucket, 33-Sealing strip, 34-Handle, 35-Hook

[0036] Bottle holder, 41-through hole, 42-hanging post, 5-strap, 51-limiting hole, 6-temperature sensor, 7-control panel. Detailed Implementation

[0037] 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.

[0038] Example 1

[0039] Please see Figures 1-6 In this embodiment, a mannitol anti-crystallization and heat preservation device for an ambulance includes: a battery base 1, a heat preservation container 2, a bag cover 3, a bottle holder 4, a strap 5, a temperature sensor 6, and a control panel 7. In this device, the battery base 1 has a built-in battery, which functions as the heat preservation container 2. The heat preservation container 2 is a container with heat preservation function; its specific heat preservation technology can be obtained from existing thermos flasks and thermos cups. The bag cover 3 is a component for hanging bagged mannitol solution, and the bottle holder 4 is a device for placing bottled mannitol solution. The strap 5 is a component for securing the mannitol solution to prevent it from shaking and colliding with each other inside the heat preservation container 2.

[0040] In this embodiment, a power cord 11 is inserted into one end of the bottom of the battery storage base 1, and the other end of the power cord 11 is connected to a power source to charge the battery storage base 1. The battery storage base 1 serves as a base for a built-in battery, and the technology of connecting it to a power source and charging it is a mature technology in the prior art, which can be conventionally selected by those skilled in the art.

[0041] In this embodiment, the insulated bucket 2 has an opening at the top and a heating plate 21 at the bottom, containing a liquid bath. The heating plate 21 is powered by the battery base 1 and is inserted onto the battery base 1. The bag cover 3 is threaded onto the insulated bucket 2 from top to bottom. Several mounting plates 31 are fixedly connected to the upper surface of the bag cover 3. The mannitol bag is hung below the bag cover 3 and inside the mounting plates 31. One end of the strap 5 is rotatably sleeved on one end of the mounting plate 31, and the other end passes through the other end of the mounting plate 31 and is inserted for positioning. The heating plate 21 inside the insulated bucket 2... The charging heating technology is a mature technology in the existing technology and is widely used in household appliances such as kettles and rice cookers. Those skilled in the art can select it after technology transfer; the hanging bag cover 3 and the heat preservation bucket 2 together form a bucket with heat preservation function, which is used for the substance in the heat preservation bucket 2 (the liquid bath liquid and mannitol solution in the heat preservation bucket 2 in this device); there are gaps between the mounting plates to allow the liquid bath liquid in the heat preservation bucket 2 to flow quickly, forming a wrapping and wetting of the mannitol solution container for rapid heat preservation; the mounting plate 31 and the strap 5 form an openable and closable ring structure to tie and fix the bagged mannitol solution;

[0042] In this embodiment, the bottle-holding container 4 is a container with an open top, and several through holes 41 are provided on the bottom and the wall of the container. The bottle-holding container 4 is rotatably hung on the bottom of several mounting plates 31, and there is a gap between the bottom of the outer wall and the upper surface of the heating plate 21. The through holes 41 allow the liquid bath liquid in the heat preservation container 2 to pass through. The bottle-holding container 4 is inserted into several mounting plates 31 from bottom to top, rotates and sinks to achieve the positioning after hanging. It is fixed by gravity and frictional damping with the inner wall of the mounting plate 31 to prevent it from falling.

[0043] In this embodiment, the temperature sensor 6 is placed inside the insulation tank 2 and measures the temperature information inside the insulation tank 2, transmitting the temperature information inside the insulation tank 2 to the control panel 7; the control panel 7 is placed on the outer wall of the insulation tank 2, and has a preset temperature inside; the preset temperature is the temperature required to prevent mannitol crystallization; after receiving the temperature information inside the insulation tank 2, the control panel 7 compares it with the preset temperature. When the liquid bath temperature inside the insulation tank 2 is higher or lower than the preset temperature, the control panel 7 controls the heating plate 21 to start heating the liquid bath to the preset temperature; the temperature sensor 6 is a waterproof temperature sensor that can be immersed in liquid and can measure temperature, which can be directly selected by those skilled in the art; the control panel is a device that displays the temperature measured by the temperature sensor 6 and compares it with the temperature required to prevent mannitol crystallization, and is a mature technology that can be selected in existing heating and insulation equipment.

[0044] In this invention, mannitol injection is a supersaturated solution. When the ambient temperature is below 20°C, it easily crystallizes. Storing it in an environment of 20-30°C can effectively prevent crystal formation. Once mannitol crystallizes, it can be dissolved in hot water at around 80°C. After dissolution, the temperature can be adjusted to 37°C for constant storage, depending on the situation. Therefore, in this invention, the anti-crystallization temperature (preset temperature) for mannitol is approximately 20-37 degrees Celsius.

[0045] In this embodiment, there are gaps between several mounting plates 31; the mounting plate 31 is an arc plate; a hanging groove 311 is provided at the bottom end; the hanging groove 311 is an n-shaped through groove with an opening facing downwards; a hanging post 42 is fixedly connected to the outer wall of the bottle holder 4; the hanging post 42 is inserted into one side of the hanging groove 311 from bottom to top and then rotated to the other side of the hanging groove 311, and hangs in the hanging groove 311 by gravity;

[0046] In this embodiment, the wall of the insulated bucket 2 is made of insulation material, and a handle 23 is connected to the outer wall; a drain pipe 22 is fixedly connected to the bottom end of the insulated bucket 2; the drain pipe 22 penetrates the insulated bucket 2 inside and out, and extends to the outer wall of the insulated bucket 2; an on / off valve 221 is installed on the drain pipe 22; the on / off valve 221 controls the opening and closing of the drain pipe 22;

[0047] In this embodiment, a plurality of limiting posts 313 are fixedly connected to the opposite outer walls of the plurality of mounting plates 31; the plurality of limiting posts 313 are arranged circumferentially at intervals on the outer walls of the mounting plates 31; a through insertion hole 312 is provided on one side of the mounting plate 31; the strap 5 is an elastic, bendable flexible strap with a plurality of limiting holes 51; the plurality of limiting holes 51 are arranged linearly at intervals; the strap 5 bends from the inner wall of the mounting plate 31 toward the insertion hole 312 and passes through the insertion hole 312, and is then inserted into the limiting hole 51 by the limiting post 313 for limiting;

[0048] In this embodiment, a plurality of limiting blocks 24 are fixedly installed at the bottom of the heat preservation bucket 2; spring pins 241 are installed on the limiting blocks 24; a recessed placement groove 12 is fixedly connected above the battery base 1; a plurality of pin holes 121 adapted to the spring pins 241 are opened on the groove wall of the placement groove 12; after the limiting blocks 24 are placed in the placement groove 12, the heat preservation bucket 2 is limited by the spring pins 241 being inserted into the pin holes 121.

[0049] In this embodiment, a handle 34 is fixedly connected to the top of the hanging bag cover 3, and an internally threaded barrel 32 is provided below it; a sealing strip 33 is sleeved on the outer ring of several mounting plates 31; the hanging bag cover 3 is screwed onto the heat preservation barrel 2 from top to bottom through the internally threaded barrel 32, and the upper and lower surfaces of the sealing strip 33 are in contact with the top of the heat preservation barrel 2 and the bottom surface of the hanging bag cover 3, respectively.

[0050] In this embodiment, a plurality of hooks 35 are installed on the lower surface of the bag cover 3 via a universal ball joint; the mannitol bag is hung below the bag cover 3 via the hooks 35 and is restrained by the straps 5.

[0051] In this embodiment, the inner wall of the insulated container 2 is provided with a number of volume scales 25; the volume scales 25 indicate the volume of the liquid bath liquid contained in the insulated container 2; the volume scales can be set according to the volume of bagged mannitol and bottled mannitol, so that after the mannitol solution is put into the insulated container 2, the liquid bath liquid fully covers and wets most of the mannitol solution container.

[0052] Regarding the liquid bath liquid in the technical solution of this invention, the inventors believe that in the medical field, silicone oil is the most commonly used liquid bath liquid due to its wide temperature range, high stability, and safety; while water, mineral oil, and ethylene glycol / propylene glycol solutions are used as auxiliary liquids depending on specific temperature requirements and scenario characteristics. When selecting a liquid bath liquid, factors such as temperature range, safety, and equipment compatibility must be considered to ensure both heat preservation effect and operational safety. Specifically, in this device, regardless of the liquid bath liquid selected, the mannitol solution must be properly sealed to prevent contamination.

[0053] In this embodiment, the specific usage process of a mannitol anti-crystallization and heat preservation device in an ambulance is as follows:

[0054] Device Installation: First, place the battery base 1 in a suitable position inside the ambulance, ensuring it is stable and does not obstruct other emergency operations. Then, place the insulated container 2 onto the battery base 1 via a plug-in connection. At this time, the limiting block 24 at the bottom of the insulated container 2 is positioned in the placement groove 12 above the battery base 1, and the spring pin 241 on the limiting block 24 is inserted into the pin hole 121 on the groove wall of the placement groove 12 to limit the insulated container 2 and prevent it from shaking during the ambulance's movement. Next, screw the hanging bag cover 3 onto the insulated container 2 using the internally threaded barrel 32, ensuring that the sealing strip 33 fits tightly against the top of the insulated container 2 and the bottom surface of the hanging bag cover 3 for a good seal. Insert the bottle container 4 into the hanging groove 311 at the bottom of the mounting plate 31 via the hanging post 42 and rotate it to a suitable position to securely hang it on the mounting plate 31.

[0055] Charging Operation: When the ambulance is parked and an external power source is available, insert one end of the power cord 11 into the connector at the bottom of the battery storage base 1, and connect the other end to the external power source to begin charging the battery storage base 1. During the charging process, the charging status can be viewed through the indicator lights or other display devices on the battery storage base 1.

[0056] Placement of mannitol: For bagged mannitol, hang it inside the mounting plate 31 below the bag cover 3. Adjust the position of the strap 5 according to the size of the mannitol bag, so that one end of the strap 5 passes through the insertion hole 312 on the mounting plate 31 and then inserts into the appropriate limiting hole 51 through the limiting post 313 to securely limit the mannitol bag. For bottled mannitol, place it directly in the bottle container 4. Since the bottom and wall of the bottle container 4 have through holes 41, it is conducive to heat transfer, ensuring that the bottled mannitol is also in a suitable temperature environment.

[0057] Temperature control: Temperature sensor 6 monitors the temperature of the liquid in the insulated container 2 in real time and transmits the temperature information to control panel 7. Before use, the temperature value is preset on control panel 7 according to the temperature required to prevent mannitol crystallization. When temperature sensor 6 detects that the liquid bath temperature in insulated container 2 is lower than the preset temperature, control panel 7 controls heating plate 21 to start, and the battery base 1 supplies energy to heating plate 21 to generate heat and heat the liquid in the bath; when the detected liquid bath temperature is higher than the preset temperature, control panel 7 controls heating plate 21 to stop heating, and the liquid bath temperature is maintained within the preset temperature range by the insulation effect of insulated container 2.

[0058] Maintenance and Cleaning: After a period of use, if it is necessary to replace the liquid bath, open the on / off valve 221 on the drain pipe 22 at the bottom of the insulation tank 2 to drain the old liquid bath. Then, new liquid bath can be added through the opening at the top of the insulation tank 2. When cleaning the device, the hanging bag cover 3 can be removed from the insulation tank 2, and the hanging bag cover 3, mounting plate 31, bottle container 4, and other components can be cleaned separately to ensure that all components are clean and hygienic and do not affect the normal use and insulation effect of the device.

[0059] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mannitol anti-crystallization and heat preservation device for use in an ambulance, characterized in that, include: Battery storage base, insulated bucket, hanging bag cover, bottle container, straps, temperature sensor, control panel; A power cord is plugged into one end of the bottom of the battery storage base, and the other end of the power cord is connected to a power source to charge the battery storage base. The insulated bucket has an opening at the top and a heating plate at the bottom, and is filled with liquid bath liquid inside. The heating plate is powered by the battery base and is placed on the battery base by insertion. The hanging bag cover is threaded onto the insulated bucket from top to bottom. Several mounting plates are fixedly connected to the lower surface of the hanging bag cover. The mannitol bag is hung below the hanging bag cover and inside the mounting plates. One end of the strap is rotatably sleeved on one end of the mounting plate, and the other end passes through the other end of the mounting plate and is inserted for limiting. The bottle holder is a barrel with an opening at the top, and several through holes are provided on the bottom and barrel wall; the bottle holder is rotatably hung on the bottom of several mounting plates, and there is a gap between the bottom of the outer wall and the upper surface of the heating plate. The temperature sensor is placed inside the insulated container and measures the temperature information inside the container, transmitting the temperature information to the control panel. The control panel is placed on the outer wall of the insulated container and has a preset temperature inside. The preset temperature is the temperature required to prevent mannitol crystallization. After receiving the temperature information inside the insulated container, the control panel compares it with the preset temperature. When the liquid bath temperature inside the insulated container is higher or lower than the preset temperature, the control panel controls the heating plate to start heating the liquid bath to the preset temperature.

2. The mannitol anti-crystallization and heat preservation device for ambulances according to claim 1, characterized in that, There are gaps between several of the mounting plates; the mounting plate is an arc plate; a hanging groove is provided at the bottom end; the hanging groove is an n-shaped through groove with the opening facing downwards; a hanging post is fixedly connected to the outer wall of the bottle container; the hanging post is inserted into one side of the hanging groove from bottom to top and then rotated to the other side of the hanging groove, and hangs in the hanging groove by gravity.

3. The mannitol anti-crystallization and heat preservation device for ambulances according to claim 1, characterized in that, The wall of the insulated bucket is made of insulation material, and a handle is connected to the outer wall; a drain pipe is fixedly connected to the bottom of the insulated bucket; the drain pipe passes through the insulated bucket inside and out and extends to the outer wall of the insulated bucket; an on / off valve is installed on the drain pipe; the on / off valve controls the opening and closing of the drain pipe.

4. The mannitol anti-crystallization and heat preservation device for ambulances according to claim 1, characterized in that, A plurality of limiting posts are fixedly connected to the opposite outer walls of the mounting plates; the plurality of limiting posts are arranged circumferentially at intervals on the outer walls of the mounting plates; a through insertion hole is provided on one side of the mounting plate; the strap is an elastic, bendable flexible strap with a plurality of limiting holes; the plurality of limiting holes are arranged linearly at intervals; the strap bends from the inner wall of the mounting plate toward the insertion hole and passes through the insertion hole, and is then limited by the limiting posts inserted into the limiting holes.

5. The mannitol anti-crystallization and heat preservation device for ambulances according to claim 1, characterized in that, The bottom of the insulated bucket is fixedly equipped with several limiting blocks; spring pins are installed on the limiting blocks; a recessed placement groove is fixedly connected above the battery base; several pin holes adapted to the spring pins are opened on the groove wall; after the limiting blocks are placed in the placement groove, the insulated bucket is limited by the spring pins inserted into the pin holes.

6. The mannitol anti-crystallization and heat preservation device for ambulances according to claim 1, characterized in that, A handle is fixedly connected to the top of the hanging bag cover, and an internally threaded barrel is provided below it; a sealing strip is fitted around the outer ring of several mounting plates; the hanging bag cover is screwed onto the insulation barrel from top to bottom through the internally threaded barrel, and the upper and lower surfaces of the sealing strip contact the top of the insulation barrel and the bottom surface of the hanging bag cover, respectively.

7. The mannitol anti-crystallization and heat preservation device for ambulances according to claim 1, characterized in that, Several hooks are installed on the lower surface of the bag cover via a universal ball joint; the mannitol bag is hung below the bag cover via the hooks and secured by the straps.

8. The mannitol anti-crystallization and heat preservation device for ambulances according to claim 1, characterized in that, The inner wall of the insulated container is provided with several volume scales; the volume scales indicate the volume of the liquid bath liquid contained in the insulated container.

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