First-aid backpack integrating heat preservation and obstacle removal for low-temperature rescue environment

Abstract

The invention relates to a first-aid backpack integrating heat preservation and obstacle removal for a low-temperature rescue environment. The knapsack comprises a knapsack main body, a first knapsack cover, an electric heating knife and a storage battery, a first mounting cavity and a first opening are formed in the knapsack main body, and the first knapsack cover seals the first opening through a zipper; the electric heating knife and the storage battery are both installed in the first installation cavity and electrically connected. The electric heating knife and the storage battery are integrated in the first-aid backpack, on one hand, an active heat preservation environment is formed in the first mounting cavity through heat generated when the electric heating knife works, and the problems of medicine freezing and patient temperature loss are solved; on the other hand, the electric heating knife can be taken out to quickly cut frozen clothes, and safe and efficient obstacle removal is achieved. The low-temperature first-aid equipment integrates the functions of active heat preservation, medicine constant temperature and electric heating cutting, the technical problems that existing low-temperature first-aid equipment is insufficient in heat preservation capacity, clothes are difficult to treat, and the equipment is complicated are solved, and the field rescue efficiency in the high and cold environment is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an integrated thermal insulation and obstacle removal emergency backpack for use in cryogenic rescue environments. Background Technology

[0002] Winters in mountainous, polar, or high-latitude regions present extremely harsh natural environments. Low temperatures, strong winds, and snowfall are commonplace. For example, weather stations in the Scottish Highlands have recorded temperatures as low as -11°C and maximum wind speeds of 17.9 m / s. Such environments generate a powerful wind chill, rapidly drawing heat from the body. In these conditions, injured or ill patients, due to trauma, shock, or limited mobility, are often exposed to low temperatures for extended periods, making them highly susceptible to hypothermia. Hypothermia causes a drop in core body temperature, leading to a series of physiological reactions, including increased burden on the cardiovascular system, coagulation disorders, and confusion, and in severe cases, even death. Therefore, in pre-hospital emergency care, especially when waiting for long-distance evacuation or when rescue is hampered by weather (typically taking 2.25 to 3.5 hours or more), effective thermal insulation is crucial for preventing the condition from worsening and improving survival rates.

[0003] To address the rescue needs in low-temperature environments, various first-aid backpacks or rescue bags have been developed in the existing technology. These backpacks are mainly used to carry first-aid medicines and equipment, but their design for insulation is still imperfect. While some existing first-aid backpacks recognize the importance of insulation and have taken certain measures—for example, some backpacks use ice packs or ice containers to achieve refrigeration, mainly for storing medicines requiring low-temperature storage, such as the first-aid backpack disclosed in patent CN216652666U, which uses an inner groove at the bottom of the backpack with an ice pack, combined with an insulated bag, to achieve low-temperature preservation of items—this passive ice pack insulation structure's insulation effect rapidly diminishes over time and with the influence of external ambient temperature. Especially in prolonged outdoor low-temperature environments, it is difficult to maintain a stable internal temperature, failing to provide continuous warmth support for patients or meet the rewarming needs of patients already suffering from hypothermia.

[0004] Another technological approach is to use active heating. For example, patent CN209965552U describes a cooling first-aid backpack that uses a complex cooling structure (such as a compressor) to cool the inside of the backpack. However, its structure is complex, and its primary function is still cooling rather than heating. Another patent discloses an easy-to-carry disaster relief backpack that uses a temperature sensor and a heating plate. When the ambient temperature is detected to be too low, the heating plate circuit is activated, radiating heat to warm the user. However, this design mainly provides heat to the wearer to maintain their physical strength, and the position of the heating plate and the method of heat transfer cannot effectively wrap and warm the entire body of a lying or resting patient. In addition, there are field first-aid backpacks designed for high-altitude and cold regions. Although they address the problem of emergency injections and liquid preparations freezing at low temperatures, their main improvements are in the structural support and transport functions, and they do not provide an efficient and immediate active heating solution to meet the warmth needs of patients or medicines. Academic research also shows that ordinary rescue bags and thermal blankets (such as bubble wrap and metallized plastic film blankets) have limited thermal insulation capabilities in cold wind environments, especially in terms of windproof and wind compression resistance, which significantly reduces their actual insulation effect. The research emphasizes that during prolonged outdoor rescue operations, windproof and pressure-resistant outer insulation equipment must be used to maintain sufficient thermal insulation.

[0005] Besides the challenge of insulation, the low-temperature environment presents another severe challenge to rescue operations: handling the clothing of the injured. In low temperatures, the clothing of the injured often becomes stiff and clings tightly to the body due to water (rain, snow, river water), blood, or freezing. To clean wounds, bandage, or conduct medical examinations, rescuers need to cut through this frozen or soaked clothing. However, in the field, rescuers usually have to use ordinary scissors or knives, which is not only laborious and inefficient but also prone to causing secondary injury or exacerbating the cold discomfort by shaking the injured during the rescue. More importantly, traditional metal knives are extremely cold at low temperatures, and direct contact with the skin can worsen frostbite and the patient's pain. Currently, there is no existing technology that integrates rapidly heated cutting tools with an insulated first-aid backpack. Rescuers often need to carry insulated equipment and cutting tools separately, which not only takes up valuable backpack space but also makes them inconvenient to access in emergencies, delaying precious rescue opportunities.

[0006] In summary, the main problems with existing technologies are: first, the lack of an integrated emergency backpack solution that can provide a durable and active thermal environment while preventing medications from freezing; second, the neglect of the practical and urgent need to quickly and safely remove frozen clothing from the injured during low-temperature rescue; and third, the limited functionality, failing to effectively integrate thermal insulation and obstacle removal (clothing handling) functions, resulting in complex rescue equipment, inconvenient operation, and difficulty in meeting the requirements of efficient and rapid emergency rescue in extreme environments.

[0007] Therefore, how to provide an emergency rescue device that integrates efficient heat preservation and rapid and safe obstacle removal functions has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0008] The purpose of this application is to provide an integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments, which to some extent solves the technical problems existing in the prior art.

[0009] This application provides an integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments, comprising: a backpack body, a first backpack cover, an electric heating knife, and a storage battery; wherein, the backpack body forms a first mounting cavity and a first opening that are connected to each other, the first backpack cover is mounted on the backpack body and is used to cover the first opening, and the first backpack cover is connected to the backpack body by a zipper so that the first backpack cover can be opened or closed; the electric heating knife and the storage battery are both mounted in the first mounting cavity, and the storage battery is electrically connected to the electric heating knife to supply power to the electric heating knife, and the electric heating knife can be taken out or stored through the first opening.

[0010] In the above technical solution, the integrated insulation and obstacle removal first aid backpack for low-temperature rescue environments further includes a medicine box, which is installed in the first mounting cavity and fixed to the top of the battery, and the medicine box is provided with a cover that can be opened or closed.

[0011] In the above technical solution, the integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments further includes a first electric heating wire, which is embedded in the inner wall of the medicine box and is electrically connected to the battery.

[0012] In the above technical solution, the integrated insulation and obstacle removal first aid backpack for low-temperature rescue environments further includes multiple partitions, which are disposed inside the medicine box and divide the interior of the medicine box into multiple independent medicine storage areas; and / or

[0013] The bottom of the medicine box is open, and the top of the battery serves as the bottom of the medicine box.

[0014] In the above technical solution, the integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments further includes a second bag body and a second backpack cover; wherein, the second bag body is fixed to the front of the backpack body, the second bag body forms a connected second mounting cavity and an opening, and the second backpack cover is installed at the opening and is used to cover the opening; the second backpack cover and the second bag body are connected by a zipper.

[0015] In the above technical solution, the integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments further includes an electric heating pad and a spiral elastic wire; wherein, the electric heating pad is placed in the second mounting cavity, and the electric heating pad is electrically connected to the battery through the spiral elastic wire, and the electric heating pad can be removed from or stored back in the second mounting cavity; the backpack body is formed with a clearance through hole to avoid the spiral elastic wire.

[0016] In the above technical solution, the outer periphery of the electric heating pad is further provided with straps.

[0017] In the above technical solution, the integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments further includes a side bag, which is fixed to the side of the backpack body and can be opened or closed.

[0018] In the above technical solution, the integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments further includes a back pad, and the back pad is fixed to the back of the backpack body.

[0019] In the above technical solution, the integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments further includes two shoulder straps, and the two shoulder straps are fixed to the back of the backpack body; and / or

[0020] The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a handle, and the handle is fixed to the top of the backpack body; and / or

[0021] The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a shelf and a cable retractor; wherein, the cable retractor and the shelf are fixed to the inner wall of the first mounting cavity, and the shelf is positioned above the cable retractor; the electric heating knife is detachably fixed to the shelf by an elastic retaining strap, and the cable retractor is used to wind up the connecting wires between the electric heating knife and the battery; and / or

[0022] The integrated thermal insulation and obstacle removal first aid backpack for cryogenic rescue environments also includes a protective cover, which is detachably fastened to the outside of the cutting section at one end of the electrically heated knife; and / or

[0023] The backpack body has a clearance notch, and the charging port of the battery is positioned corresponding to the clearance notch.

[0024] Compared with the prior art, the beneficial effects of this application are as follows:

[0025] This application relates to an integrated thermal insulation and obstacle removal first aid backpack for cryogenic rescue environments. By organically integrating active heating, efficient obstacle removal, and a portable backpack structure, it provides a systematic solution to the pain points of existing technologies in cryogenic rescue scenarios, such as insufficient thermal insulation, easy freezing of medicines, difficulty in handling clothing, and cumbersome equipment. Compared with existing technologies, this invention has the following significant advantages:

[0026] I. Constructing an active heating microenvironment to achieve efficient and long-lasting heat preservation performance.

[0027] Addressing the shortcomings of existing first-aid backpacks that primarily rely on passive insulation (such as ice packs, insulating cotton, and reflective films), resulting in limited insulation time and inability to withstand extreme cold, this invention integrates an electric heating blade and a battery to create an active heating system within the backpack. Specifically, the battery, acting as an energy storage unit, can be fully charged before a rescue operation. In low-temperature environments, the battery continuously supplies power to the electric heating blade, causing it to heat up. Since the electric heating blade is housed within the first mounting cavity formed by the backpack body, the heat it generates can radiate and conduct within this cavity, creating a miniature warm zone with a temperature higher than the external environment. This design delivers three substantial benefits:

[0028] Firstly, it solves the problem of low-temperature freezing of medicines and liquid preparations. In high-altitude and cold regions, emergency medicines (such as adrenaline, atropine, antipyretic analgesics, etc.) and liquids such as saline and glucose injections are extremely prone to freezing and failure in sub-zero temperatures, rendering them unusable in critical moments. The active heating design of this invention can maintain the temperature inside the first mounting cavity above the freezing point, ensuring that emergency medicines remain liquid and active at all times. This avoids the risk of medicines becoming ineffective due to heat loss in traditional passive insulation, essentially equipping emergency supplies with a "portable thermostat."

[0029] Secondly, it provides an auxiliary heat source for the injured. In actual rescue operations, once the first backpack flap is opened, rescuers can take out a preheated electric heating pad and place it close to the injured person's body (such as inside a sleeping bag or thermal blanket). The continuous heat emitted by the pad provides direct warmth to the hypothermic patient. This active heat source supplementation, compared to simply relying on thermal blankets to insulate against the cold, can truly deliver heat to the patient, helping to slow down or reverse the progression of hypothermia and buying valuable time for subsequent transport and hospital treatment.

[0030] Thirdly, it achieves extended battery life and heat preservation during long-term field operations. Compared to solutions relying on chemical heating packs (disposable and with short heating time), the battery of this invention can be repeatedly charged and used, and different capacity batteries can be selected according to the duration of the rescue. During the rescue, if the battery is depleted, it can be recharged through the vehicle's power supply, generator, or even solar panels, thereby achieving continuous heat preservation in extreme environments and meeting the needs of field emergency rescue for several hours or even longer.

[0031] II. Integrated electric heating and cutting function enables safe and efficient clothing removal.

[0032] Addressing the technical challenge of removing clothing from wounded or sick individuals due to freezing or soaking in low-temperature environments, this invention innovatively integrates an electrically heated knife as a core component into an emergency backpack. This overcomes the difficulty of using ordinary scissors or knives for laborious cutting in traditional rescue operations, resulting in the following breakthrough effects:

[0033] Firstly, it significantly improves cutting efficiency and reduces the difficulty of rescue. When powered on, the electric heating knife rapidly heats up, instantly melting the ice and cutting the fibers upon contact with frozen or wet clothing fibers—as smoothly as "a hot knife cutting butter." Compared to ordinary knives that require repeated tearing and cutting, this significantly saves rescuers' energy, shortens the time the patient's body is exposed, and makes the emergency procedure more efficient.

[0034] Secondly, it significantly reduces the risk of secondary injury. In low-temperature environments, the skin of injured or sick individuals becomes more brittle due to the cold and often adheres tightly to frozen clothing. If a regular knife is used to forcibly cut, uneven force or slippage can easily cause skin abrasions and tears. The electrically heated knife of this invention, during cutting, rapidly melts the ice layer at the contact point due to the high temperature, allowing clothing to separate naturally from the skin, reducing mechanical pulling on the patient. Simultaneously, the heated blade itself does not cause localized frostbite or severe stinging pain upon contact with the skin like cold metal, thus minimizing secondary injuries during rescue operations and demonstrating a human-centered design.

[0035] Third, it expands the applicable scenarios for obstacle removal. The heated knife can not only be used to cut clothing, but also to cut various obstacles such as ropes binding patients, safety belts, and tent fabric. In low-temperature environments, these materials often harden and become brittle due to freezing, making them difficult to cut with ordinary knives. The heated knife's high-temperature cutting capability allows it to play a crucial role in various obstacle removal scenarios, becoming a "multi-functional tool" in the hands of rescuers to deal with sudden obstacles.

[0036] Third, the highly integrated structural layout achieves a balance between equipment portability and ease of operation.

[0037] This invention overcomes the shortcomings of existing technologies, such as the separation of insulation equipment and cutting tools, and inconvenience in carrying, through the ingenious arrangement of the backpack body, first backpack cover, electric heating knife, and storage battery. It exhibits multiple advantages in structural design:

[0038] Firstly, it optimizes space utilization, enabling multiple uses from a single pack. The main body of the backpack forms a primary mounting cavity, housing the electric heating knife and battery. This utilizes the backpack's inherent volume while eliminating the need for rescuers to carry additional items such as knives, hand warmers, and spare batteries. All core equipment closely related to cryogenic emergency care is integrated into one pack, achieving "ready to use right out of the box" and greatly simplifying the deployment preparation process.

[0039] Secondly, it is easy to access and store, meeting the needs of emergency procedures. The first backpack flap is connected to the main body of the backpack by a zipper, allowing for quick opening and closing. When rescuers arrive at the scene, they can quickly unzip the flap and take out the preheated (or ready-to-heat) electric heating knife from the first opening for immediate use; after use, it can be quickly put back into the bag to prevent loss. This "ready-to-use" design is perfectly suited to the time-sensitive nature of emergency situations.

[0040] Thirdly, the zipper sealing structure combines insulation and protection. The first backpack cover is tightly closed to the main body of the backpack via a zipper, which effectively reduces the convection of cold air between the first mounting cavity and the outside. Combined with the active heating function of the electric heating blade, this forms a double insulation barrier. At the same time, the closed backpack can protect the internal electric heating blade and battery from wind, snow, and dust, ensuring that the equipment can still work reliably in harsh environments.

[0041] Fourth, the battery's placement is rational, ensuring a safe and stable power supply. The battery and the electric heating knife are housed together in the first mounting cavity, shortening the power supply line, reducing energy loss, and facilitating real-time monitoring of battery power and operational status by rescue personnel. When necessary, the battery can also be removed to temporarily power other small emergency equipment (such as headlamps and communication devices), further enhancing the equipment's versatility.

[0042] IV. Significantly improve overall rescue efficiency in low-temperature environments

[0043] In summary, this application, through its integrated innovation of thermal insulation and obstacle removal functions, has had a positive impact on emergency rescue efficiency in low-temperature environments at a macro level:

[0044] On the one hand, it shortens the on-site treatment time. From opening the backpack and taking out the electric heating knife to cut the clothing, to using the heat source to keep the patient warm, the whole process is completed in one go, avoiding the time-consuming operation of searching for different equipment and repeatedly changing tools in the cold wind, so that the patient can receive medical treatment more quickly.

[0045] On the other hand, it lowers the technical threshold and physical burden on rescuers. In harsh conditions such as extreme cold and strong winds, human functions naturally decline. Using laborious and inefficient tools can easily lead to fatigue and errors among rescuers. The electric heating cutting and active heat preservation functions of this invention are equivalent to providing rescuers with "mechanical assistance," allowing them to concentrate more on injury assessment and first aid procedures, thus improving the quality of treatment.

[0046] Furthermore, it enhances the equipment support capabilities of rescue teams in extreme environments. A backpack integrating electric heating, insulation, and obstacle removal functions offers significant advantages in logistical support, equipment maintenance, and portability compared to carrying multiple specialized devices. It is particularly suitable for professional teams such as mountain rescue teams, polar expedition teams, and border troops in high-altitude and cold regions that need to perform missions in the field for extended periods.

[0047] In summary, this application creatively solves the two core problems of heat preservation and clothing handling in low-temperature environments by integrating an electric heating knife and a storage battery into an emergency backpack. It has multiple beneficial effects, such as long-lasting and reliable active heat preservation, safe and efficient obstacle removal and cutting, convenient and easy-to-use equipment integration, and significantly improved overall rescue efficiency. It provides a brand-new and feasible technical equipment solution for pre-hospital emergency care in harsh conditions such as high altitude, cold, and snow, and has significant technological advancement and broad application value. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0049] Figure 1 A schematic diagram of the structure of an integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments provided in this application embodiment;

[0050] Figure 2 A schematic diagram of the structure of the emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments provided in this application embodiment, showing the opening of the first backpack cover;

[0051] Figure 3 A cross-sectional schematic diagram of an integrated thermal insulation and obstacle removal emergency backpack for cryogenic rescue environments provided in an embodiment of this application;

[0052] Figure 4 An assembly diagram of the medicine box and the storage battery provided in the embodiments of this application;

[0053] Figure 5 This is a schematic diagram of the removal of the electric heating pad provided in an embodiment of this application;

[0054] Figure 6 This is another structural schematic diagram of an emergency backpack for low-temperature rescue environments that integrates thermal insulation and obstacle removal, provided as an embodiment of this application.

[0055] Figure label:

[0056] 1 Backpack body, 101-First mounting cavity, 102-First opening, 103-Avoidance notch, 2-First backpack cover, 3-Cable reel, 4-Shelf, 5-Electric heating knife, 6-Battery, 61-Charging port, 7-Medicine box, 71-Sealing cover, 8-First electric heating wire, 9-Divider, 10-Second pack body, 11-Second mounting cavity, 12-Electric heating pad, 13-Spiral elastic cable, 14-Strap, 15-Side pack body, 16-Back pad, 17-Shoulder strap, 18-Handle, 19-Elastic fixing strap, 20-Protective cover. Detailed Implementation

[0057] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0058] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0059] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0062] The technical solutions of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the described embodiments are merely some implementation methods of this application, and not all implementation methods. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0063] like Figures 1 to 6 As shown, this application provides an integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments, primarily suitable for wilderness rescue scenarios in harsh weather conditions such as high altitudes, cold, and snow. This first aid backpack, through the systematic integration of thermal insulation and obstacle removal functions, aims to solve technical problems such as insufficient thermal insulation capacity of existing first aid equipment in low-temperature environments, easy freezing of medicines, and difficulties in handling clothing.

[0064] like Figure 1 and Figure 2As shown, the first aid backpack includes a backpack body 1, a first backpack cover 2, an electric heating knife 5, and a battery 6. The backpack body 1 is made of durable, waterproof Oxford cloth or high-strength nylon to withstand harsh outdoor environments. The backpack body 1 has a connected first mounting cavity 101 and a first opening 102 inside. The first opening 102 is typically located at the top or front of the backpack body 1 for easy access to items. The first backpack cover 2 is mounted on the backpack body 1 to cover the first opening 102. To achieve quick opening and reliable closure, the first backpack cover 2 is connected to the backpack body 1 via a zipper. A waterproof lip can also be provided on the outside of the zipper to prevent rain and snow from seeping in. When rescuers arrive at the scene, they can quickly unzip and open the first backpack cover 2 to retrieve the necessary equipment from the first mounting cavity 101; after use, closing the zipper will seal the backpack.

[0065] The electric heating knife 5 and the battery 6 are both installed in the first mounting cavity 101. The battery 6 is electrically connected to the electric heating knife 5 via a flexible wire and is used to power the electric heating knife 5. The battery 6 can be a high-energy-density lithium polymer battery, which is lightweight and has stable discharge characteristics, and can maintain good power supply performance even in low-temperature environments. The electric heating knife 5 can be taken out or stored back into the first mounting cavity 101 through the first opening 102. The core of this design is to utilize the heat generated by the electric heating knife 5 during operation to not only achieve the cutting function, but also to form an actively heated micro-warm zone within the first mounting cavity 101. Specifically, before the rescue operation begins, the battery 6 can continuously power the electric heating knife 5 to maintain it at a certain temperature. Since the electric heating knife 5 is placed in the relatively sealed first mounting cavity 101, the heat it emits can radiate and conduct within the cavity, making the internal temperature of the cavity higher than the external ambient temperature. This provides active insulation for medicines, liquid preparations, etc., stored in the cavity, solving the problem of limited insulation time caused by heat loss in traditional passive insulation methods (such as ice boxes and insulation cotton). In actual rescue operations, once the first backpack cover 2 is opened, rescuers can take out the preheated electric heating knife 5 and place it close to the injured person's body. The heat it continuously emits can provide direct warmth to the hypothermic patient, which can help slow down or reverse the progression of hypothermia.

[0066] As an expandable implementation, the connection between the battery 6 and the electric heating knife 5 can use a pluggable waterproof connector, facilitating quick assembly and disassembly of the electric heating knife 5. The battery 6 can also be equipped with a power indicator located on the outside of the backpack body 1, allowing rescuers to easily monitor the remaining power. To adapt to different rescue durations, the battery 6 can adopt a modular design, supporting hot-swappable replacement of spare batteries, or supplemental charging via an external power source (such as a vehicle power supply or solar panel) connected to the charging port on the backpack body 1. Furthermore, the electric heating knife 5 can be configured with various blade shapes, such as straight blades, curved blades, and serrated blades, to adapt to the cutting needs of different clothing materials; a quick-change structure can be used between the blade and the handle, expanding the applicable scenarios for the cutting tool.

[0067] Considering the urgent need to keep emergency medicines warm in low-temperature environments, such as Figure 2 , Figure 3 and Figure 4 As shown, based on the above structure, the first aid backpack also includes a medicine box 7, which is installed inside the first mounting cavity 101 and fixed to the top of the battery 6. The medicine box 7 is provided with an openable or closable cover 71, which can be made of transparent hard plastic for easy and quick identification of the medicines inside. The integrated layout of the medicine box 7 and the battery 6 makes full use of the unused space on top of the battery 6, and the small amount of heat generated by the battery 6 during operation can also be conducted to the bottom of the medicine box 7, providing auxiliary heat preservation.

[0068] To further enhance the heat preservation effect of medicine box 7, such as Figure 3 As shown, the first aid backpack also includes a first heating wire 8, which is embedded in the inner wall of the medicine box 7 and electrically connected to the battery 6. When the ambient temperature is extremely low, rescuers can activate the first heating wire 8 to actively heat the inside of the medicine box 7, ensuring that emergency medicines (such as adrenaline, atropine, etc.) and liquids such as saline and glucose injection are always kept above the freezing point to prevent freezing and failure. The first heating wire 8 can be equipped with a temperature sensor and a thermostat. When the internal temperature of the medicine box 7 is detected to be lower than a set threshold (e.g., 5°C), heating is automatically activated; when it is higher than the set threshold, heating is automatically stopped, achieving energy-saving and constant temperature control.

[0069] As an extended implementation method, the medicine box 7 can be designed with a double-layer structure, with insulation material (such as polyurethane foam, aerogel felt, etc.) filling the space between the inner and outer layers to further reduce heat loss. The inner wall of the medicine box 7 can also be coated with far-infrared radiating material, radiating the heat from the electric heating wire to the surface of the medicine in the form of far-infrared rays, improving heating uniformity. To meet the storage temperature requirements of different medicines, the interior of the medicine box 7 can be divided into multiple independent temperature zones, each with its own electric heating wire and temperature sensor, achieving zoned temperature control.

[0070] like Figure 4 As shown, to facilitate the classification, storage, and management of medicines, the first aid backpack also includes multiple dividers 9. These dividers 9 are installed inside the medicine box 7, dividing the interior of the medicine box 7 into multiple independent medicine storage areas. The dividers 9 can be installed using a slot-type design, and their positions can be flexibly adjusted to accommodate the storage needs of medicine bottles of different sizes. Each medicine storage area can have a label bag attached to its corresponding cap 71 for labeling information such as the medicine name, specifications, and expiration date, allowing rescue personnel to quickly access the medicine.

[0071] Another optimized implementation involves an open bottom for the medicine box 7, with the top of the battery 6 serving directly as the bottom of the medicine box 7. This design not only simplifies the structure and reduces weight but also allows the heat generated by the battery 6 during operation to be more directly conducted to the interior of the medicine box 7, enabling heat recovery and utilization. A thermally conductive silicone pad can be installed on the top of the battery 6 to increase the contact area with the items inside the medicine box 7.

[0072] In addition to the thermal insulation design of the main compartment, this first aid backpack also takes into account the need for portable heat sources at the rescue site. For example... Figure 2 and Figure 5 As shown, the first aid backpack also includes a second bag body 10 and a second backpack cover 18. The second bag body 10 is fixed to the front of the backpack body 1, forming an independent sub-compartment structure. The second bag body 10 has a connected second mounting cavity 11 and an opening. The second backpack cover 18 is installed at the opening to cover it, and it also uses a zipper connection.

[0073] An electric heating pad 12 is placed inside the second mounting cavity 11. The electric heating pad 12 is electrically connected to the battery 6 via a spiral flexible wire 13. The spiral flexible wire 13 has a certain degree of elasticity. It can automatically stretch when the electric heating pad 12 is removed for use, avoiding the risk of tripping due to excessively long wires. When not in use and stored, the spiral flexible wire 13 can automatically retract for easy organization. The backpack body 1 has a clearance through hole to avoid the spiral flexible wire 13, ensuring that the wire can be smoothly led out without being squeezed when the backpack cover is closed.

[0074] The electric heating pad 12 solves the problem of keeping the injured person warm all over. At the rescue site, rescuers can remove the electric heating pad 12 from the second mounting cavity 11 and place it under or over the injured person. When powered on, the electric heating pad 12 heats up evenly, providing continuous warmth to a large area of ​​the body and effectively preventing further heat loss. For patients already suffering from hypothermia, the electric heating pad 12 can serve as an important means of active rewarming, and its effect is even better when used in conjunction with a thermal blanket. The electric heating pad 12 has straps 14 around its outer perimeter, which can be used to secure the electric heating pad 12 to a stretcher, sleeping bag, or the injured person's body to prevent slippage or displacement.

[0075] As an expandable implementation, the electric heating pad 12 can adopt a multi-layer composite structure, including a skin-friendly surface layer, a middle heating layer, and a bottom insulation layer. The skin-friendly surface layer uses a soft and breathable knitted fabric, which is comfortable and non-irritating when in direct contact with the skin; the middle heating layer can use carbon fiber heating wires or flexible graphene heating film, which provides uniform heating and rapid temperature rise; the bottom insulation layer uses aluminum foil composite insulation cotton to reduce heat loss to the ground and improve heat utilization efficiency. The electric heating pad 12 can be equipped with a multi-level temperature adjustment switch, allowing rescuers to select the appropriate heating level according to the condition of the injured person and the ambient temperature. In addition, the electric heating pad 12 can also integrate a pressure sensor, which automatically starts heating when a injured person is detected lying down and automatically cuts off power when no one is present, achieving energy saving and safety protection.

[0076] Considering the need for rapid access to various first-aid equipment and medicines at the rescue site, such as Figure 1 and Figure 6 As shown, the first aid backpack also includes a side pocket 15, which is fixed to the side of the main body 1 of the backpack and can be opened or closed using a zipper or buckle. The side pocket 15 can be used to store frequently used small equipment, such as scissors, gloves, first aid dressings, flashlights, etc., which can be quickly accessed without opening the main compartment, improving rescue efficiency. The side pocket 15 can be designed with multiple independent compartments for easy classification and storage; the inner walls of the compartments can be equipped with elastic bands or fasteners to prevent items from shaking and colliding during movement.

[0077] To improve the comfort of rescuers carrying the equipment, such as... Figure 1 and Figure 6 As shown, the first aid backpack also includes a back pad 16, which is fixed to the back of the backpack body 1. The back pad 16 is made of breathable, sweat-absorbing mesh fabric and filled with high-resilience sponge, forming an ergonomic curved structure that can distribute pressure and reduce fatigue when carried. The back pad 16 can also have longitudinal air channels to increase air circulation to the back and reduce stuffiness.

[0078] The carrying system also includes two shoulder straps 17, which are fixed to the back of the backpack body 1. The shoulder straps 17 feature an S-shaped curve design to conform to the shoulder contours and are filled with thickened sponge to effectively distribute shoulder pressure. Chest and waist buckles can be installed on the shoulder straps 17 to form a three-point carrying system, maintaining backpack stability when traversing complex terrain. Walkie-talkies, GPS devices, and other equipment can also be suspended on the shoulder straps 17 for easy access by rescue personnel.

[0079] For easy carrying over short distances, the first aid backpack also includes a handle 18, which is fixed to the top of the backpack body 1. The handle 18 is made of high-strength nylon webbing with an outer layer of non-slip rubber for a comfortable grip. When taking it out of the trunk of a vehicle or moving it short distances, rescuers can directly lift it by the handle 18 without having to carry it on their back.

[0080] Regarding the storage and management of the electric heating knife 5 and its wiring harness, such as... Figure 2 and Figure 3 As shown, the first aid backpack also includes a shelf 4 and a cable retractor 3. The cable retractor 3 and the shelf 4 are fixed to the inner wall of the first mounting cavity 101, with the shelf 4 positioned above the cable retractor 3. The electric heating knife 5 is detachably fixed to the shelf 4 by an elastic retaining strap 19, ensuring that the electric heating knife 5 will not shake or collide during transport. The cable retractor 3 is used to automatically wind up the connecting wires between the electric heating knife 5 and the battery 6, preventing the wires from becoming tangled. The cable retractor 3 can adopt a spring-loaded automatic retraction structure, automatically stopping when pulled out and automatically winding back when pulled back.

[0081] To ensure the safety of the heated knife 5 during transport, the first aid backpack also includes a protective cover 20, which is detachably fastened to the outside of the cutting section at one end of the heated knife 5. The protective cover 20 is made of high-temperature resistant engineering plastic and has an inner heat-insulating pad. Even when the heated knife 5 is preheated, the protective cover 20 effectively isolates heat, preventing burns to other objects or people. The protective cover 20 can be connected to the handle via a snap or thread for easy access.

[0082] To address the charging needs of the battery 6, the backpack body 1 has a clearance notch 103, and the charging port 61 of the battery 6 is positioned corresponding to the clearance notch 103. This design allows the battery 6 to be charged directly by connecting a charger without opening the backpack cover, improving ease of use. The charging port 61 can be fitted with a waterproof and dustproof cover to maintain a seal when not charging. Reinforced stitching can be installed around the clearance notch 103 to prevent tearing after prolonged use.

[0083] As an expandable implementation, Battery 6 can also be equipped with a USB output interface to provide emergency charging for rescuers' communication devices (such as mobile phones, satellite phones, and GPS), expanding the backpack's power supply capabilities. Battery 6 can have a built-in BMS battery management system, providing multiple protections against overcharge, over-discharge, overcurrent, and short circuits to ensure safe use. In low-temperature environments, Battery 6 can also be equipped with an automatic heating function; when the battery temperature is detected to be below 0°C, the internal heating film automatically activates, ensuring the battery operates at a suitable temperature and maintaining discharge performance.

[0084] In summary, the specific embodiments of this application, through the system integration of multiple functional modules such as the backpack body 1, the first backpack cover 2, the electric heating knife 5, the storage battery 6, the medicine box 7, and the electric heating pad 12, construct a comprehensive first aid equipment integrating active heat preservation, efficient obstacle removal, constant medicine temperature, and portable power supply. Each functional module can function independently or work collaboratively, forming a complete technical solution. It should be noted that the above embodiments are merely preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An integrated thermal insulation and obstacle removal first aid backpack for use in low-temperature rescue environments, characterized in that, include: The backpack comprises a main body, a first backpack cover, an electric heating knife, and a battery. The main body has a first mounting cavity and a first opening that are connected to each other. The first backpack cover is mounted on the main body and is used to cover the first opening. The first backpack cover is connected to the main body via a zipper so that the first backpack cover can be opened or closed. The electric heating knife and the battery are both mounted in the first mounting cavity. The battery is electrically connected to the electric heating knife and is used to supply power to the electric heating knife. The battery can be taken out or stored through the first opening.

2. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 1, characterized in that, The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a medicine box, which is installed in the first mounting cavity and fixed to the top of the battery, and the medicine box is provided with a cover that can be opened or closed.

3. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 2, characterized in that, The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a first electric heating wire, which is embedded in the inner wall of the medicine box and is electrically connected to the battery.

4. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 2, characterized in that, The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes multiple partitions, which are disposed within the medicine box and divide the interior of the medicine box into multiple independent medicine storage areas; and / or The bottom of the medicine box is open, and the top of the battery serves as the bottom of the medicine box.

5. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 1, characterized in that, The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a second bag body and a second backpack cover; wherein, the second bag body is fixed to the front of the backpack body, the second bag body forms a connected second mounting cavity and an opening, and the second backpack cover is installed at the opening and is used to cover the opening; the second backpack cover and the second bag body are connected by a zipper.

6. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 5, characterized in that, The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes an electric heating pad and a spiral elastic wire; wherein, the electric heating pad is placed in the second mounting cavity, and the electric heating pad is electrically connected to the battery through the spiral elastic wire, and the electric heating pad can be removed from or stored back in the second mounting cavity; the backpack body has a clearance through hole to avoid the spiral elastic wire.

7. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 6, characterized in that, The electric heating pad is provided with straps on its outer periphery.

8. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 1, characterized in that, The integrated thermal insulation and obstacle removal emergency backpack for low-temperature rescue environments also includes a side bag, which is fixed to the side of the backpack body and can be opened or closed.

9. The emergency backpack with integrated insulation and obstacle removal for low-temperature rescue environments according to claim 1, characterized in that, The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a back pad, which is fixed to the back of the backpack body.

10. The emergency backpack for cryogenic rescue environments integrating thermal insulation and obstacle removal according to any one of claims 1 to 9, characterized in that, The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes two shoulder straps, and the two shoulder straps are fixed to the back of the backpack body; and / or The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a handle, and the handle is fixed to the top of the backpack body; and / or The integrated thermal insulation and obstacle removal first aid backpack for low-temperature rescue environments also includes a shelf and a cable retractor; wherein, the cable retractor and the shelf are fixed to the inner wall of the first mounting cavity, and the shelf is positioned above the cable retractor; the electric heating knife is detachably fixed to the shelf by an elastic retaining strap, and the cable retractor is used to wind up the connecting wires between the electric heating knife and the battery; and / or The integrated thermal insulation and obstacle removal first aid backpack for cryogenic rescue environments also includes a protective cover, which is detachably fastened to the outside of the cutting section at one end of the electrically heated knife; and / or The backpack body has an avoidance gap, and the charging port of the battery is set in accordance with the avoidance gap.

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