Portable broken limb protection device suitable for battlefield environment

By designing a portable limb protection device, the problem of inconvenient limb preservation in the battlefield environment is solved, the defense and limb preservation functions on the battlefield are realized, and the success rate of replantation surgery and postoperative function recovery are improved.

CN119924301APending Publication Date: 2025-05-06FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
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Patent Information

Application Number
CN202510129122.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-05-06

AI Technical Summary

Technical Problem

In the battlefield environment, the inconvenience of preservation of broken limbs leads to limited success rate of replantation surgery and postoperative limb function recovery.

Method used

A portable off-limb protection device is designed, including a rotatably articulated outer shell and an embedded cryogenic storage shell set, equipped with a protective plate set and a sealing gasket, which can build protective fortifications in a battlefield environment and provide low temperature storage conditions.

Benefits of technology

This device not only provides effective defense and preservation conditions in a battlefield environment, but also improves the success rate of replantation of broken limbs and postoperative functional recovery, but also facilitates portability and transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a portable broken limb protection device suitable for a battlefield environment, and relates to the field of biological storage equipment.The portable broken limb protection device comprises a pair of outer shells which are arranged side by side and provided with opening faces distributed in the same direction; the sides, facing the opening face, of the pair of outer shells are hinged to each other and can be rotationally overlapped, and locking pieces are arranged at the top ends and the bottom ends of the pair of outer shells and used for locking the side-by-side state and the overlapped state of the pair of outer shells. Inner storage shell sets used for storing broken limbs at low temperature are embedded in the pair of outer shells, and protection plate sets with compression buffering performance are movably embedded in the opening faces of the pair of outer shells. The device is reasonable in overall structure, can do defense fortification in a battlefield to provide defense for soldiers, can also be used for effectively storing broken limbs in the battlefield, and strives for more treatment time and opportunities for the wounded.
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Description

Technical Field

[0001] The invention relates to the field of biological storage equipment, in particular to a portable severed limb protection device suitable for battlefield environments. Background Art

[0002] In modern warfare, limb amputation and trauma are very common due to the widespread use of explosives, bullets and other weapons. These injured soldiers with limb injuries not only need timely medical treatment, but also need effective limb preservation technology to ensure the survival rate of replanted severed limbs.

[0003] The preservation of severed limbs is crucial to the success rate of replantation surgery and the recovery of limb function after surgery. On the one hand, successful limb transplantation requires not only limb survival, but more importantly, functional recovery, which is directly related to the protection of severed limbs; on the other hand, since field hospitals are generally set up in the rear far away from the front-line battlefield, the evacuation and transportation time is long, resulting in a significant decrease in the survival rate of replantation of severed limbs; in order to provide good preservation conditions for severed limbs, improve the success rate of replantation surgery, and gain more treatment time and opportunities for the wounded, the present invention proposes a portable severed limb protection device suitable for battlefield environments. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a portable severed limb protection device suitable for battlefield environments to solve the technical problem that the preservation of severed limbs on the battlefield is inconvenient, reducing the success rate of replantation surgery and the recovery of postoperative limb function.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a portable severed limb protection device suitable for battlefield environment, comprising an outer shell, a pair of the outer shells are arranged side by side, the pair of the outer shells have opening surfaces distributed in the same direction, and the side of the pair of the outer shells facing the opening surfaces are hinged to each other and can be rotatably overlapped, the top and bottom ends of the pair of the outer shells are provided with locking parts for locking the pair of outer shells in a side-by-side state and a overlapped state; the pair of the outer shells are both embedded with an inner storage shell group for low-temperature storage of severed limbs, the opening surfaces of the pair of the outer shells are movably embedded with a protective plate group with compression and buffering performance, and the protective plate group can be movably embedded on the side of the outer shell opposite to the opening surface of the outer shell.

[0006] The present invention is further configured as follows: the inner storage shell group comprises an outer storage shell embedded in an outer shell, an inner storage shell is arranged inside the outer storage shell, the inner storage shell has a storage chamber capable of storing severed limbs, the outer storage shell and the inner storage shell have opening surfaces arranged in the same direction as the outer shell, the two storage chambers respectively contain a first storage bottle and a second storage bottle, the first storage bottle contains liquid nitrogen, the second storage bottle contains inert gas, and the surrounding sides of the first storage bottle and the second storage bottle in the storage chamber are filled with air column bags and medical storage bags.

[0007] The present invention is further configured such that a low-temperature interlayer is provided between the outer storage shell and the inner storage shell, wherein one of the outer storage shells is fixedly embedded in the outer shell, and a filling port connected to the low-temperature interlayer corresponding to the outer storage shell is provided on the side wall of the outer shell, and the other outer storage shell is movably embedded in the outer shell, and a push-pull member for pushing the outer storage shell to move is provided on the outer shell.

[0008] The present invention is further configured such that the opening surfaces of the outer storage shell and the inner storage shell are provided with sealing gaskets, and the sealing gaskets are closed in a circle.

[0009] The present invention is further configured such that the push-pull member includes a screw sleeve rotatably mounted on a side of the outer shell away from the opening surface and a stud fixed on the corresponding outer storage shell, the screw sleeve and the stud are threadedly sleeved together, and the screw sleeve is flush with the outer surface of the outer shell.

[0010] The present invention is further configured such that the outer storage shell is made of stainless steel, the inner surface of the outer storage shell is provided with a fiberglass coating, and the material of the inner storage shell is one of aluminum, high thermal conductivity ceramics, and thermal conductive plastics.

[0011] The present invention is further configured such that the locking component includes a rotating seat rotatably installed at the middle position of a pair of outer shell end surfaces, wherein a sleeve is horizontally fixed on one of the rotating seats, and a connecting rod is horizontally penetrated through the other rotating seat, and a handle is provided at the end of the connecting rod away from the sleeve, and the sleeve and the connecting rod are sleeved and matched, and a positioning protrusion is provided on the side wall of the connecting rod facing one end of the sleeve, and a guide groove capable of accommodating the positioning protrusion to be embedded and slide is opened on the inner wall of the sleeve in the opposite direction of the length, and a plurality of positioning grooves which are connected to the guide groove and can accommodate the rotation of the positioning protrusion are also opened on the inner wall of the sleeve.

[0012] The present invention is further configured such that the protective plate group includes a connecting plate movably embedded in the outer shell and a protective panel arranged on the side of the connecting plate away from the outer shell, the side of the protective panel away from the connecting plate is equipped with a handle, a rubber strip is arranged around the surrounding walls of the protective panel and the connecting plate, and a plurality of unloading springs are vertically connected between the protective panel and the connecting plate.

[0013] The present invention is further configured such that a first card block and a second card block are respectively provided on both sides of the top and bottom ends of the opening surface of the outer shell and a surface opposite to the opening surface, and a connecting protrusion that can be connected with the first card block and the second card block is provided on the connecting plate.

[0014] The present invention is further configured such that the material of the protective panel, the connecting plate and the outer shell is one or more of bulletproof steel plate, titanium alloy, aluminum alloy and bulletproof ceramic.

[0015] In summary, the present invention mainly has the following beneficial effects:

[0016] The present invention uses a pair of outer shells to be rotated and installed and a protective plate group to be arranged. When the pair of outer shells are rotated to be arranged side by side, the protective plate group is locked and fixed by a locking member, and the protective plate group is embedded in one side of the opening of the pair of outer shells, and the one side of the opening of the outer shells is sealed. Thus, the pair of outer shells and the protective plate group arranged side by side form a closed wall panel structure. In addition, the protective panels and connecting plates in the outer shells and the protective plate group are made of materials such as bulletproof steel plates, titanium alloys, aluminum alloys, and bulletproof ceramics, and have bulletproof and explosion-proof properties. The unloading spring arranged between the protective panel and the connecting plate has the function of buffering unloading. The closed wall panel structure can be used to build protective fortifications in battlefield environments and provide effective defense for soldiers. When the pair of outer shells are rotated and overlapped, the straps are passed through the buckles on the outer wall of the outer shells to facilitate transportation and carrying. At the same time, the internal space of the pair of outer shells is connected, which can be used to store and carry the severed limbs of soldiers.

[0017] The present invention uses a pair of inner storage shell groups arranged in an outer shell body. When used for storing and carrying severed limbs of soldiers, the severed limbs are placed in a medical storage bag and sealed, the inert gas in the second storage bottle is filled into the air column bag and wrapped in the medical storage bag containing the severed limbs, and after the pair of outer shell bodies are overlapped and locked, the screw sleeve is twisted to drive the screw to push the movable inner storage shell group toward another inner storage shell group, so that the sealing gaskets on the open end surfaces of the pair of inner storage shell groups are tightly pressed, the storage chambers and the low-temperature interlayer inside the pair of inner storage shell groups are connected to each other, and the liquid nitrogen in the first storage bottle is filled into the low-temperature interlayer, and then, the outer storage The material properties of the shell and the glass fiber reinforced plastic coating on the inner surface can delay the heat exchange between liquid nitrogen and the outside world. The thermal conductivity of the material of the inner storage shell can be used to create a low-temperature environment in the storage chamber. The packaging of the air column bag and the medical storage bag can prevent the severed limb from being infected, collided and damaged during the carrying process. The setting of the inner storage shell can prevent the severed limb from direct contact with liquid nitrogen, which not only reduces the metabolism of the severed limb tissue and slows down tissue degeneration, but also prevents the severed limb tissue from being frostbitten due to excessive cooling, provides good preservation conditions for the severed limb, improves the success rate of replantation surgery, and buys more time and opportunities for treatment for the wounded. In addition, the protective plate group is clamped on the side of the stacked outer shell that is away from each other, which can reduce the damage to the outer shell caused by battlefield stray bullets or bomb shock waves, and further protect the stored severed limbs.

[0018] The portable severed limb protection device suitable for battlefield environments has a reasonable overall structure and can be used as a defensive fortification on the battlefield to provide defense for soldiers, and can also be used to effectively preserve severed limbs on the battlefield, thereby buying more time and opportunities for treatment for the wounded. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention when used as a defensive fortification;

[0020] Figure 2 It is a schematic diagram of the structure of the present invention after the protective plate group is removed in the defensive fortification state;

[0021] Figure 3 It is a schematic diagram of the transverse cross-sectional structure of the outer shell of the present invention;

[0022] Figure 4 For the present invention Figure 1 A in the enlarged view;

[0023] Figure 5 It is a schematic diagram of the structure of the internal storage shell group of the present invention;

[0024] Figure 6 For the present invention Figure 5 The enlarged view of point B in the figure;

[0025] Figure 7It is a structural schematic diagram of the locking member of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the connection between the inside of the sleeve and the connecting rod of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the protective plate assembly of the present invention;

[0028] Fig.10 It is a schematic diagram of the transverse cross-sectional structure of the protective plate group of the present invention.

[0029] In the figure: 1, outer shell; 2, locking piece; 3, protective plate group; 4, buckle; 5, filling port; 6, inner storage shell group; 7, air column bag; 8, medical storage bag; 9, first storage bottle; 10, second storage bottle; 11, screw sleeve; 12, stud; 13, first clamping block; 14, second clamping block; 15, outer storage shell; 16, inner storage shell; 17, storage chamber; 18, low-temperature interlayer; 19, sealing gasket; 20, rotating seat; 21, sleeve; 22, connecting rod; 23, handle; 24, guide groove; 25, positioning protrusion; 26, positioning groove; 27, protective panel; 28, connecting plate; 29, handle; 30, rubber strip; 31, connecting protrusion; 32, unloading spring. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] A portable severed limb protection device suitable for battlefield environments, such as Figure 1-Figure 10As shown, it includes an outer shell 1, which is arranged in pair in side by side. The pair of outer shells 1 have opening surfaces distributed in the same direction, and the side of the pair of outer shells 1 facing the opening surface is hinged to each other and can be rotated and overlapped. The top and bottom ends of the pair of outer shells 1 are provided with locking members 2 for locking the pair of outer shells 1 in the side-by-side state and the overlapped state. The opening surface of the pair of outer shells 1 is movably embedded with a protective plate group 3 with compression and buffering performance. The protective plate group 3 can be movably embedded on the side of the outer shell 1 opposite to the opening surface of the outer shell 1. The pair of outer shells 1 are both embedded with an inner storage shell group 6 for low-temperature storage of severed limbs. When the pair of outer shells 1 are rotated to be distributed side by side, the locking member 2 is used to lock and fix the protective plate group 3, and the opening surface of the outer shell 1 is sealed. Thus, the pair of outer shells 1 and the protective plate group 3 distributed side by side form a closed wall panel structure, which can be used to construct protective fortifications in a battlefield environment and provide effective defense for soldiers. When the pair of outer shells 1 are rotated and overlapped, they can be easily transported and carried. At the same time, the internal spaces of the pair of outer shells 1 are connected, and the inner storage shell group 6 inside the outer shell 1 can be used to store and carry the severed limbs of soldiers, thereby buying more time and opportunities for treatment for the wounded.

[0032] In a further embodiment, the locking member 2 includes a rotating seat 20 rotatably installed at the middle position of the end surface of a pair of outer shells 1, a sleeve 21 is horizontally fixed on one of the rotating seats 20, and a connecting rod 22 is horizontally penetrated on the other rotating seat 20, and a handle 23 is provided at the end of the connecting rod 22 away from the sleeve 21. The sleeve 21 and the connecting rod 22 are sleeved and matched, and a positioning protrusion 25 is provided on the side wall of the connecting rod 22 facing the end of the sleeve 21. A guide groove 24 that can accommodate the positioning protrusion 25 to be embedded and slide is opened on the inner wall of the sleeve 21 in the opposite direction along the length, and a plurality of positioning grooves 26 that are connected to the guide groove 24 and can accommodate the positioning protrusion 25 to rotate are also opened on the inner wall of the sleeve 21. The end of the connecting rod 22 is inserted into the sleeve 21 and rotated, so that the positioning protrusion 25 is embedded in the corresponding positioning groove 26, which can be used for locking and fixing a pair of outer shells 1.

[0033] In a further embodiment, the protective plate group 3 includes a connecting plate 28 movably embedded with the outer shell 1 and a protective panel 27 arranged on the side of the connecting plate 28 away from the outer shell 1, a handle 29 is installed on the side of the protective panel 27 away from the connecting plate 28, a rubber strip 30 is surrounded by the surrounding walls of the protective panel 27 and the connecting plate 28, and a plurality of unloading springs 32 are vertically connected between the protective panel 27 and the connecting plate 28. The first clamping block 13 and the second clamping block 14 are respectively arranged on both sides of the top and bottom ends of the opening surface of the outer shell 1 and the side opposite to the opening surface. A connecting protrusion 31 that can be clamped with the first clamping block 13 and the second clamping block 14 is arranged on the connecting plate 28. The material of the protective panel 27, the connecting plate 28 and the outer shell 1 is one or more of bulletproof steel plate, titanium alloy, aluminum alloy, and bulletproof ceramic. When a pair of outer shells 1 are placed side by side, the connecting protrusion is used. 31 is engaged with the first card block 13 to embed the protective plate group 3 on the open side of a pair of outer shells 1, and the open side of the outer shell 1 is sealed. The protective panel 27 and the connecting plate 28 in the outer shell 1 and the protective plate group 3 are made of bulletproof steel plate, titanium alloy, aluminum alloy, bulletproof ceramic and other materials, and have bulletproof and explosion-proof properties. The unloading spring 32 arranged between the protective panel 27 and the connecting plate 28 has the function of buffering and unloading, so that the pair of outer shells 1 fixed side by side can be used to build protective fortifications in the battlefield environment to provide effective defense for soldiers. When the pair of outer shells 1 are stacked to store and carry severed limbs, the protective plate group 3 is engaged with the second card block 14 to be connected to the side of the stacked pair of outer shells 1 away from each other, which can reduce the damage to the outer shell 1 caused by battlefield stray bullets or bomb shock waves, and further protect the stored severed limbs.

[0034] In a further embodiment, the inner storage shell group 6 includes an outer storage shell 15 embedded in the outer shell 1, an inner storage shell 16 is arranged inside the outer storage shell 15, and a storage chamber 17 capable of storing severed limbs is provided inside the inner storage shell 16. The outer storage shell 15 and the inner storage shell 16 have opening surfaces arranged in the same direction as the outer shell 1, and the two storage chambers 17 are respectively filled with a first storage bottle 9 and a second storage bottle 10, the first storage bottle 9 is filled with liquid nitrogen, and the second storage bottle 10 is filled with inert gas, and the surrounding sides of the first storage bottle 9 and the second storage bottle 10 in the storage chamber 17 are filled with air column bags 7 and medical storage bottles. A low-temperature interlayer 18 is arranged between the storage bag 8, the outer storage shell 15 and the inner storage shell 16, one of the outer storage shells 15 is fixedly embedded in the outer shell 1, and a filling port 5 connected to the low-temperature interlayer 18 corresponding to the outer storage shell 15 is arranged on the side wall of the outer shell 1. The medical storage bag 8 is used to seal and contain severed limbs on the battlefield to prevent the severed limbs from contacting and infecting the outside world. The gas in the second storage bottle 10 is filled into the air column bag 7. After the air column bag 7 is inflated, it is wrapped around the medical storage bag 8 containing the severed limb and loaded into the storage chamber 17 of the inner storage shell group 6, which can prevent the severed limbs from being damaged by collision during carrying.

[0035] In this embodiment, another outer storage shell 15 is movably embedded in the outer shell 1, and a push-pull member for pushing the outer storage shell 15 to move is provided on the outer shell 1. The opening surfaces of the outer storage shell 15 and the inner storage shell 16 are provided with sealing gaskets 19, and the sealing gasket 19 is closed with a circle. The push-pull member includes a screw sleeve 11 rotatably installed on the side of the outer shell 1 away from the opening surface and a stud 12 fixed on the corresponding outer storage shell 15. The screw sleeve 11 and the stud 12 are threadedly sleeved, and the screw sleeve 11 is flush with the outer surface of the outer shell 1. The screw sleeve 11 is screwed to drive the stud 12 to push the movable inner storage shell group 6 toward another inner storage shell group 6, so as to facilitate A pair of sealing gaskets 19 on the open end faces of the inner storage shell groups 6 can be used to make the storage chambers 17 inside the pair of inner storage shell groups 6 sealed and connected. The outer storage shell 15 is made of stainless steel, and the inner surface of the outer storage shell 15 is provided with a fiberglass coating. The material of the inner storage shell 16 is one of aluminum, high thermal conductivity ceramics, and thermal conductive plastics. The liquid nitrogen in the first storage bottle 9 is filled into the low-temperature interlayer 18 through the filling port 5. The material properties of the outer storage shell 15 and the fiberglass coating applied on the inner surface can be used to delay the heat exchange between the liquid nitrogen and the outside world. The thermal conductivity of the material of the inner storage shell 16 is used to create a low-temperature environment for storing severed limbs in the storage chamber 17.

[0036] The working principle of the present invention is as follows: when in use, when a pair of outer shells 1 are rotated to be distributed side by side, the sleeve 21 and the connecting rod 22 are pulled to rotate horizontally along the width direction of the outer shell 1, and the end of the connecting rod 22 is inserted into the sleeve 21 and rotated, so that the positioning protrusion 25 is embedded in the corresponding positioning groove 26. The pair of outer shells 1 are fixed side by side through this structural method. At the same time, the protective plate group 3 is embedded in the open side of the pair of outer shells 1 by using the clamping cooperation between the connecting protrusion 31 and the first clamping block 13, and the open side of the outer shell 1 is sealed. Thus, the pair of outer shells 1 and the protective plate group 3 distributed side by side form a closed wall panel structure. In addition, the protective panel 27 and the connecting plate 28 in the outer shell 1 and the protective plate group 3 are made of bulletproof steel plate, titanium alloy, aluminum alloy, bulletproof ceramic and other materials, and have bulletproof and explosion-proof properties. The unloading spring 32 arranged between the protective panel 27 and the connecting plate 28 has the function of buffering unloading, so that the pair of outer shells 1 fixed side by side can be used to construct protective fortifications in a battlefield environment, providing effective defense for soldiers.

[0037] Furthermore, when the pair of outer shells 1 are rotated and overlapped, the sleeve 21 and the connecting rod 22 are pulled to rotate horizontally along the thickness direction of the outer shell 1, and the sleeve 21 and the connecting rod 22 are sleeved to lock the pair of outer shells 1 together. At this time, the shoulder strap is passed through the buckle 4 on the outer wall of the outer shell 1, which can be easily transported and carried;

[0038] Furthermore, when the pair of outer shells 1 are overlapped, the internal spaces of the pair of outer shells 1 are connected and can be used for the storage and carrying of severed limbs of soldiers. Specifically, the air column bag 7, the medical storage bag 8, the first storage bottle 9 and the second storage bottle 10 are taken out from the storage chamber 17 of the inner storage shell group 6, the severed limb is placed in the medical storage bag 8 and sealed, and then the inert gas in the second storage bottle 10 is filled into the air column bag 7. After being inflated, the air column bag 7 is wrapped around the medical storage bag 8 containing the severed limb and placed in the storage chamber 17 of the inner storage shell group 6. The pair of outer shells 1 are overlapped and locked, and then the screw sleeve 11 is screwed to drive the stud 12 to push the movable inner storage shell group 6 toward the other inner storage shell group 6 until the sealing gaskets 19 on the open end faces of the pair of inner storage shell groups 6 are tightly pressed together, and the storage inside the pair of inner storage shell groups 6 is The chamber 17 and the low-temperature interlayer 18 are interconnected, and then the liquid nitrogen in the first storage bottle 9 is filled into the low-temperature interlayer 18 through the filling port 5. The material properties of the outer storage shell 15 and the fiberglass coating applied on the inner surface can be used to delay the heat exchange between the liquid nitrogen and the outside world. The thermal conductivity of the material of the inner storage shell 16 is used to create a low-temperature environment for storing severed limbs in the storage chamber 17. The wrapping of the air column bag 7 and the medical storage bag 8 can prevent the severed limbs from being infected, collided and damaged during carrying. The setting of the inner storage shell 16 can prevent the severed limbs from direct contact with liquid nitrogen, which can reduce the metabolism of the severed limb tissue and slow down tissue degeneration, and can also prevent the severed limb tissue from being frostbitten due to excessive cooling, thereby providing good preservation conditions for the severed limbs, improving the success rate of replantation surgery, and gaining more treatment time and opportunities for the wounded. In addition, when a pair of outer shells 1 are stacked to store and carry severed limbs, the protective plate group 3 is snapped onto the sides of the stacked pair of outer shells 1 that are away from each other by utilizing the snap-fitting cooperation between the connecting protrusion 31 and the second snap block 14, thereby reducing the damage to the outer shells 1 caused by battlefield stray bullets or bomb shock waves, and providing further protection for the stored severed limbs.

[0039] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A portable severed limb protection device suitable for battlefield environments, comprising an outer shell (1), characterized in that: A pair of the outer shells (1) are arranged side by side, the pair of the outer shells (1) have opening surfaces distributed in the same direction, and the sides of the pair of the outer shells (1) facing the opening surfaces are hinged to each other and can be rotatably overlapped, and the top and bottom ends of the pair of the outer shells (1) are provided with locking members (2) for locking the pair of the outer shells (1) in a side-by-side state and an overlapped state; An inner storage shell group (6) for low-temperature storage of severed limbs is embedded in each of the pair of outer shells (1); a protective plate group (3) with compression buffering performance is movably embedded in the opening surface of the pair of outer shells (1); the protective plate group (3) can be movably embedded in the surface of the outer shell (1) opposite to the opening surface of the outer shell (1).

2. A portable severed limb protection device suitable for battlefield environment according to claim 1, characterized in that: The inner storage shell group (6) comprises an outer storage shell (15) embedded in an outer shell (1), an inner storage shell (16) is arranged inside the outer storage shell (15), and the inner storage shell (16) has a storage chamber (17) capable of storing severed limbs. The outer storage shell (15) and the inner storage shell (16) have opening surfaces arranged in the same direction as the outer shell (1), and the two storage chambers (17) respectively store a first storage bottle (9) and a second storage bottle (10), the first storage bottle (9) is filled with liquid nitrogen, and the second storage bottle (10) is filled with inert gas, and the surrounding sides of the first storage bottle (9) and the second storage bottle (10) in the storage chamber (17) are filled with air column bags (7) and medical storage bags (8).

3. A portable severed limb protection device suitable for battlefield environment according to claim 2, characterized in that: A low-temperature interlayer (18) is provided between the outer storage shell (15) and the inner storage shell (16), wherein one of the outer storage shells (15) is fixedly embedded in the outer shell (1), and a filling port (5) connected to the low-temperature interlayer (18) corresponding to the outer storage shell (15) is provided on the side wall of the outer shell (1), and another of the outer storage shells (15) is movably embedded in the outer shell (1), and a push-pull member for pushing the outer storage shell (15) to move is provided on the outer shell (1).

4. A portable severed limb protection device suitable for battlefield environment according to claim 3, characterized in that: The opening surfaces of the outer storage shell (15) and the inner storage shell (16) are provided with sealing gaskets (19), and the sealing gaskets (19) are closed in a circle.

5. The portable severed limb protection device suitable for battlefield environment according to claim 3, characterized in that: The push-pull member comprises a screw sleeve (11) rotatably mounted on a side of the outer shell (1) away from the opening surface, and a stud (12) fixed on a corresponding outer storage shell (15); the screw sleeve (11) and the stud (12) are threadedly engaged, and the screw sleeve (11) is flush with the outer surface of the outer shell (1).

6. The portable severed limb protection device suitable for battlefield environment according to claim 3, characterized in that: The outer storage shell (15) is made of stainless steel, the inner surface of the outer storage shell (15) is provided with a glass fiber reinforced plastic coating, and the material of the inner storage shell (16) is one of aluminum, high thermal conductivity ceramics, and thermal conductive plastics.

7. The portable severed limb protection device suitable for battlefield environment according to claim 1, characterized in that: The locking member (2) comprises a rotating seat (20) rotatably mounted at the middle position of the end surface of a pair of outer shells (1), a sleeve (21) being horizontally fixed on one of the rotating seats (20), a connecting rod (22) being horizontally penetrated on the other rotating seat (20), a handle (23) being arranged at the end of the connecting rod (22) away from the sleeve (21), the sleeve (21) and the connecting rod (22) being sleeve-fitted, a positioning protrusion (25) being arranged on the side wall of the connecting rod (22) facing the end of the sleeve (21), a guide groove (24) being arranged on the inner wall of the sleeve (21) in the opposite direction along the length, the positioning protrusion (25) being capable of being embedded and slidable, and a plurality of positioning grooves (26) being arranged on the inner wall of the sleeve (21) being connected with the guide groove (24) and capable of being capable of being rotated by the positioning protrusion (25).

8. The portable severed limb protection device suitable for battlefield environment according to claim 1, characterized in that: The protective plate group (3) comprises a connecting plate (28) movably embedded in the outer shell (1) and a protective panel (27) arranged on the side of the connecting plate (28) away from the outer shell (1), the side of the protective panel (27) away from the connecting plate (28) is equipped with a handle (29), the surrounding walls of the protective panel (27) and the connecting plate (28) are surrounded by rubber strips (30), and a plurality of unloading springs (32) are vertically connected between the protective panel (27) and the connecting plate (28).

9. A portable severed limb protection device suitable for battlefield environment according to claim 8, characterized in that: A first clamping block (13) and a second clamping block (14) are respectively arranged on the opening surface of the outer shell (1) and the top and bottom sides of a surface opposite to the opening surface, and a connecting protrusion (31) capable of being clamped with the first clamping block (13) and the second clamping block (14) is arranged on the connecting plate (28).

10. The portable severed limb protection device suitable for battlefield environment according to claim 8, characterized in that: The material of the protective panel (27), the connecting plate (28) and the outer shell (1) is one or more of bulletproof steel plate, titanium alloy, aluminum alloy and bulletproof ceramic.