A battlefield wound treatment device based on rescue in a battlefield environment

Abstract

This invention provides a battlefield wound treatment device for first aid in a battlefield environment, belonging to the field of wound care technology. The device includes a bandage, and further includes: two Velcro straps symmetrically fixed to the outer walls of both ends of the bandage about its central axis; the two Velcro straps can be adhered to each other for quick and secure connection of the two ends of the bandage; a sealing bag detachably connected to the middle section of the bottom wall of the bandage; a drug storage component located inside the sealing bag for temporary storage of chlorhexidine and lidocaine; a pressure bladder fixedly connected to the inner side of the top wall of the sealing bag, its top wall being fixedly connected to the bottom wall of the bandage, and containing distilled water; and an ammonium chloride storage component located on the side wall of the middle section of the pressure bladder for storing ammonium chloride. This design reduces the size of the device, making it lighter and more portable, and enabling wound treatment in a very short time, meeting the needs of rapid rescue in emergency situations.

Description

Technical Field

[0001] This invention relates to the field of wound care technology, and in particular to a battlefield wound treatment device based on battlefield rescue. Background Technology

[0002] In battlefield environments, wound care devices are crucial tools for improving battlefield rescue effectiveness. Battle wounds are often accompanied by complex problems and frequently occur far from medical facilities, where time and resources are scarce. Therefore, wound care devices need to be designed with multiple functions, including rapid hemostasis, wound debridement, pain relief, and emergency medical support, while also being lightweight and portable. With continuous technological advancements, wound care devices will become more intelligent, efficient, and multifunctional, providing battlefield casualties with a better chance of survival.

[0003] A wound treatment device for combat trauma first aid proposed in Chinese Patent (Publication No.: CN116439849A) can quickly and accurately adapt and fix limbs placed on the surfaces of the first and second placement plates by means of height adjustment and distance adjustment structures, so that the device can fix and clamp limbs of different patients.

[0004] First, portability is paramount in battlefield first aid, but the aforementioned equipment is bulky and requires pre-deployment before emergency treatment can begin. This deployment process delays rescue efforts, and any delay can worsen the condition. Second, its size and weight make the equipment difficult to carry, hindering rescuers' ability to move or use it quickly in emergencies. Third, the space-consuming nature of this equipment limits its deployment and use in confined or restricted environments, increases operational complexity, and may require higher skill levels from rescuers, further wasting valuable time. In harsh battlefield environments, the risk of equipment damage is relatively high, and maintenance is difficult. Summary of the Invention

[0005] This invention provides a battlefield wound treatment device for first aid in a battlefield environment, which solves the technical problems of existing equipment being large in size, difficult to carry, requiring pre-deployment and placement before emergency treatment can be carried out, and the deployment process delaying rescue opportunities and potentially worsening the injury.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A battlefield wound treatment device for first aid in a battlefield environment includes a bandage and two Velcro straps. The two Velcro straps are symmetrically fixed to the outer walls of both ends of the bandage about its central axis, and can be adhered to each other for quick and easy connection of the two ends of the bandage. A sealing bag is detachably connected to the middle section of the bottom wall of the bandage. A drug storage component is disposed inside the sealing bag, and the drug storage component temporarily stores chlorhexidine and lidocaine. A pressure bag is fixedly connected to the inner side of the top wall of the sealing bag, and its top wall is fixedly connected to the bottom wall of the bandage, and the pressure bag stores distilled water. An ammonium chloride storage group is disposed on the side wall of the middle section of the pressure bag, and the ammonium chloride storage group stores ammonium chloride. A switch component is disposed inside the ammonium chloride storage component, and the switch component controls the communication between the ammonium chloride storage component and the pressure bag. A switch angle control component is disposed outside the ammonium chloride storage component, and the switch angle control component is connected to the rotating end of the switch component. A wound docking component is symmetrically fixed to both sides of the bottom wall of the sealing bag about its central axis.

[0008] Optionally, the drug storage component includes degreased cotton fixedly connected to the inside of the sealed bag, a PLGA film fixedly connected to the middle section of the bottom wall of the sealed bag, and a sealing strip fixedly connected to the outer wall of the sealed bag on the side away from the switch component. The sealed bag temporarily stores chlorhexidine and lidocaine, and the degreased cotton absorbs and temporarily stores chlorhexidine and lidocaine.

[0009] Optionally, the ammonium chloride storage assembly includes a connecting pipe fixedly connected to the middle section of the outer wall of the pressure bladder on the side away from the sealing strip. A storage tank is fixedly connected to the outer wall of the connecting pipe on the side away from the pressure bladder. The storage tank stores ammonium chloride. A connecting through hole is opened on the side wall of the storage tank on the side near the pressure bladder.

[0010] Optionally, the switch assembly includes a transmission rod rotatably connected to the inside of the storage tank and a stop block fixedly connected to the middle section of the side wall of the connecting pipe. The end of the transmission rod away from the pressure bladder passes through the side wall of the storage tank and is fixedly connected to a rotating handle. The end of the transmission rod near the pressure bladder is fixedly connected to a sealing plate, and the sealing plate is engaged with the stop block.

[0011] Optionally, the switch angle control assembly includes an anti-slip sleeve fixedly connected to the outer wall of the storage tank. A connecting ring is fixedly connected to the outer wall of the anti-slip sleeve on the side away from the pressurization bladder. The connecting ring is detachably connected to the rotating handle and is used to limit the angle of the rotating handle.

[0012] Optionally, the wound docking assembly includes two non-woven fabric strips that are fixedly connected to both sides of the bottom wall of the sealing bag symmetrically about the central axis of the sealing bag. Medical tape is fixedly connected to the bottom wall of the non-woven fabric strips on the side facing each other, and multiple elastic bands are fixedly connected to the outer wall of the non-woven fabric strips on the side away from each other.

[0013] Optionally, the sealing plate has an area larger than the connecting through hole area, which can seal the connecting through hole.

[0014] Optionally, before using the device, the sealing strip of the chlorhexidine and lidocaine in the sealed bag is opened, and the chlorhexidine and lidocaine solution is poured into the sealed bag. The chlorhexidine and lidocaine solution is then absorbed by the absorbent cotton. The chlorhexidine and lidocaine solution should not be stored in the sealed bag for more than 24 hours. During use, the medicines injected into the sealed bag can be replaced as needed. For example, the disinfectant can be replaced with medical alcohol or iodine; the local anesthetic can be replaced with benzocaine or other analgesics.

[0015] Optionally, the PLGA film can react with and dissolve in blood. PLGA reacts with water, enzymes or other components in the blood and can be decomposed into lactic acid and glycolic acid in the body, and will not be directly dissolved by chlorhexidine or lidocaine solution.

[0016] Optionally, the amount of ammonium chloride stored in the storage tank should be less than the standard amount, where the gas produced after the ammonium chloride reacts completely with distilled water accounts for one-quarter of the maximum storage capacity of the pressurized bladder.

[0017] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0018] In the above solution, by reducing the size of the device and using straps and Velcro to wear it on the patient's wound, the efficiency of rescue in battlefield environments is greatly improved. This design makes the device lighter and easier to carry, and can complete wound treatment in a very short time, meeting the needs of rapid rescue in emergency situations. At the same time, the simplified wearing method improves the convenience of operation, reduces the patient's pain and discomfort. The small and adjustable size of the device makes it easy to store and flexibly handle different types of wound treatment, which can save space and resources, especially in resource-scarce battlefield environments.

[0019] By incorporating a pressure bladder and an ammonium chloride storage component at the bottom of the bandage, the ammonium chloride in the storage component reacts with distilled water in the pressure bladder via a switch during use. This cools the distilled water and generates gas, causing the pressure bladder to expand. This applies pressure and cold compress to the wound, helping to stop bleeding and reduce the risk of blood loss. Simultaneously, the cooling effect produced by the reaction effectively lowers the temperature, relieves pain, and reduces inflammation. This device does not rely on an external power source or ice, providing a self-sufficient cold compress function, making it suitable for resource-scarce environments.

[0020] Upon contact with the blood at the patient's wound site, the PLGA film dissolves, squeezing out the chlorhexidine and lidocaine solutions absorbed within the absorbent cotton and applying them to the wound. Chlorhexidine provides immediate antibacterial action, effectively preventing wound infection, while lidocaine rapidly relieves pain and reduces discomfort. The PLGA film's dissolution process precisely releases the medication, avoiding the unevenness of manual operation and simplifying the work of medical personnel. Especially in battlefield conditions, it enables efficient and automated wound treatment. Furthermore, this design reduces the hassle of drug storage and transportation, allows for stable use in harsh environments, reduces the risk of infection, and promotes wound healing.

[0021] Before the device is worn, the wound docking assembly aligns with the wound site, allowing the two sides of the wound to fit together. This promotes wound healing, reduces wound exposure, lowers the risk of infection, and accelerates the healing process. Secondly, docking the wound helps reduce bleeding and control blood loss. This simple method of hemostasis is especially important in resource-constrained battlefield environments. The design is simple and intuitive to operate, allowing rescuers to quickly and effectively treat wounds, saving valuable time and improving treatment efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure in this invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure in this invention. Figure 2 ;

[0024] Figure 3 This is a cross-sectional structural diagram and an enlarged view of the strap in this invention;

[0025] Figure 4 This is a schematic cross-sectional view of the sealed bag in this invention;

[0026] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the pressure bladder in this invention;

[0027] Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle;

[0028] Figure 7 This is a schematic cross-sectional view of the storage tank in this invention. Figure 1 ;

[0029] Figure 8 This is a schematic cross-sectional view of the storage tank in this invention. Figure 2 .

[0030] [Figure Labels]

[0031] 1. Straps; 11. Velcro; 2. Sealing bag; 21. PLGA film; 22. Sealing strip; 23. Degreased cotton; 3. Pressure bladder; 31. Connecting tube; 32. Storage container; 33. Connecting through hole; 4. Rotating handle; 41. Drive rod; 42. Sealing plate; 43. Stop block; 5. Anti-slip sleeve; 51. Connecting ring; 6. Non-woven fabric tape; 61. Medical tape; 62. Elastic band. Detailed Implementation

[0032] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 8 As shown, an embodiment of the present invention provides a battlefield wound treatment device for first aid in a battlefield environment, including a bandage 1, and further comprising:

[0034] Two Velcro straps 11 are symmetrically fixed to the outer walls of both ends of the strap 1 about the central axis of the strap 1, and the two Velcro straps 11 can stick to each other to quickly fix the ends of the strap 1.

[0035] The sealed bag 2 is detachably connected to the middle section of the bottom wall of the strap 1. The strap 1 and the sealed bag 2 are connected by medical double-sided tape or medical tape, so that the strap 1 of different lengths can be replaced according to the usage conditions during use.

[0036] A drug storage component, located inside the sealed bag 2, is used for the temporary storage of chlorhexidine and lidocaine;

[0037] The pressure bladder 3 is fixedly connected to the inner side of the top wall of the sealed bag 2, and its top wall is fixedly connected to the bottom wall of the strap 1. The pressure bladder 3 contains distilled water.

[0038] An ammonium chloride storage component is located on the side wall of the middle section of the pressure bladder 3. It is used to store ammonium chloride, a common salt that can undergo an endothermic reaction when dissolved in water. That is, it absorbs heat during the dissolution process, which leads to a decrease in the ambient temperature. It does not directly release gas during the dissolution process, but it can react with water after dissolution to release ammonia gas. Especially when there is a high concentration of ammonium chloride in the water, it can cool the distilled water and apply cold compresses to the wound. At the same time, it can generate gas to inflate the pressure bladder 3, apply pressure to the wound, and assist in hemostasis.

[0039] A switch assembly, located inside the ammonium chloride storage assembly, is used to control the connection between the ammonium chloride storage assembly and the pressurization bladder 3, thereby controlling the reaction between ammonium chloride and distilled water.

[0040] A switching angle control component is located on the outside of the ammonium chloride storage component and is used to connect to the rotating end of the switching component;

[0041] The wound docking assembly is symmetrically fixed to both sides of the bottom wall of the sealing bag 2 about the central axis of the sealing bag 2, and is used to tighten and dock the two sides of the wound.

[0042] like Figure 2 and Figure 4 As shown, in a preferred embodiment, based on the above method, the drug storage component further includes a degreased cotton 23 fixedly connected to the inside of the sealed bag 2, a PLGA film 21 fixedly connected to the middle section of the bottom wall of the sealed bag 2, and a sealing strip 22 fixedly connected to the outer wall of the sealed bag 2 on the side away from the switch component. The sealed bag 2 temporarily stores chlorhexidine and lidocaine, and the degreased cotton 23 adsorbs chlorhexidine and lidocaine. Chlorhexidine and lidocaine have good chemical stability, and they are not likely to react chemically with each other in a short time, nor will they affect each other's effectiveness.

[0043] like Figure 5-8 As shown, the ammonium chloride storage assembly includes a connecting pipe 31 fixedly connected to the middle section of the outer wall of the pressure bladder 3 on the side away from the sealing strip 22. A storage tank 32 is fixedly connected to the outer wall of the connecting pipe 31 on the side away from the pressure bladder 3. The pressure bladder 3 and the storage tank 32 are connected through the connecting pipe 31. The storage tank 32 stores ammonium chloride. A connecting through hole 33 is opened on the side wall of the storage tank 32 near the pressure bladder 3. Distilled water in the pressure bladder 3 can enter the storage tank 32 through the connecting through hole 33 to dissolve and react with the ammonium chloride.

[0044] like Figure 6-8 As shown, the switch assembly includes a transmission rod 41 rotatably connected to the inside of the storage tank 32 and a stop block 43 fixedly connected to the middle section of the side wall of the connecting pipe 31. A rotating handle 4 is fixedly connected to the end of the transmission rod 41 away from the pressure bladder 3, passing through the side wall of the storage tank 32. A sealing plate 42 is fixedly connected to the end of the transmission rod 41 near the pressure bladder 3. The sealing plate 42 engages with the stop block 43. The transmission rod 41 simultaneously fixes the rotating handle 4 and the sealing plate 42, thus rotating the rotating handle 4 can drive the sealing plate. The sealing plate 42 rotates synchronously within the pressure bladder 3, while the rotation angle of the sealing plate 42 within the pressure bladder 3 is limited by the stop block 43. During sealing, the sealing plate 42 is blocked by the stop block 43 after rotating to the top, thus sealing the connecting through hole 33. When connecting the pressure bladder 3 and the storage tank 32, it is only necessary to rotate the rotating handle 4 to rotate the sealing plate 42 to the bottom of the pressure bladder 3, while the stop block 43 blocks the other end of the sealing plate 42 to prevent misalignment between the sealing plate 42 and the connecting through hole 33.

[0045] like Figure 6-8As shown, the switch angle control component includes an anti-slip sleeve 5 fixedly connected to the outer wall of the storage tank 32. The anti-slip sleeve 5 is fixed by the storage tank 32, so that when the rotating handle 4 is turned, the other hand can pinch the anti-slip sleeve 5 to increase the friction and facilitate the rotation of the rotating handle 4. A connecting ring 51 is fixedly connected to the outer wall of the anti-slip sleeve 5 on the side away from the pressure bladder 3. The connecting ring 51 is detachably connected to the rotating handle 4. The connection between the connecting ring 51 and the rotating handle 4 is similar to the connection between a beverage bottle cap and an anti-theft ring. The connecting ring 51 and the rotating handle 4 are fixedly connected through several fixed connection points. During use, the connection between the connecting ring 51 and the rotating handle 4 can be disconnected by forcefully rotating the rotating handle 4. This is used to limit the angle of the rotating handle 4. When the connection between the connecting ring 51 and the rotating handle 4 is not disconnected, the angle of the rotating handle 4 is limited by the connecting ring 51, thereby preventing the angle of the rotating handle 4 from rotating due to external force when the equipment is not in use. This would cause the ammonium chloride in the storage tank 32 to react prematurely with the distilled water in the pressure bladder 3, resulting in the equipment failing to function properly.

[0046] like Figure 1-4 As shown, the wound docking assembly includes two non-woven fabric strips 6 fixedly connected to the bottom wall of the sealing bag 2, symmetrically fixed about the central axis of the sealing bag 2. Medical tape 61 is fixedly connected to the bottom wall of the non-woven fabric strips 6 facing each other, and multiple elastic bands 62 are fixedly connected to the outer wall of the non-woven fabric strips 6 away from each other. Before using the equipment, the non-woven fabric strips 6 need to be stretched, and the medical tape 61 needs to be attached to both sides of the wound. The medical tape 61 is pulled towards the middle by the elastic bands 62, thereby pulling and aligning the two sides of the wound.

[0047] like Figure 5-8 As shown, the area of ​​the sealing plate 42 is larger than the area of ​​the connecting through hole 33, which can seal the connecting through hole 33.

[0048] like Figure 1-4 As shown, before using the device, the sealing strip 22 (refer to the sealing strip on the existing sealing bag, which will not be described) is opened to pour the chlorhexidine and lidocaine solution into the sealing bag 2. The chlorhexidine and lidocaine solution is then absorbed by the absorbent cotton 23. The chlorhexidine and lidocaine solution should not be stored in the sealing bag 2 for more than 24 hours. Since the chemical relationship between chlorhexidine and lidocaine solution is relatively stable, it can be pre-filled into the device. When using the device, it can be directly worn on the wound site of the injured person. During use, the medicines injected into the sealing bag 2 can be replaced as needed. For example, the disinfectant can be replaced with medical alcohol or iodine; the local anesthetic can be replaced with benzocaine or other analgesics. The replacement of medicines can be targeted according to the usage scenario, provided that the principles of medicine use are followed.

[0049] like Figure 1-4 As shown, the PLGA film 21 can react with and dissolve in blood. PLGA reacts with water, enzymes or other components in the blood and can be decomposed into lactic acid and glycolic acid in the body. It will not be directly dissolved by chlorhexidine or lidocaine solution. At the same time, the premise for replacing the drug is that the drug cannot react with the PLGA film 21 and affect the normal use of the PLGA film 21.

[0050] like Figure 1-8 As shown, the ammonium chloride storage capacity in storage tank 32 should be less than one-quarter of the maximum capacity of the pressure bladder 3, which is the amount of gas produced after the complete reaction of ammonium chloride and distilled water. Limiting the amounts of ammonium chloride and distilled water is to prevent the generation of excessive gas during use, which could cause the pressure bladder 3 to expand too much, damaging the wound and affecting subsequent treatment.

[0051] The working process of the battlefield wound treatment device provided by this invention is as follows:

[0052] First, after opening the sealing strip 22, inject the corresponding disinfectant and local anesthetic into the sealed bag 2 in advance;

[0053] Remove the clothing from the patient's wound, then select a bandage 1 of the appropriate length, and connect the sealed bag 2 and the bandage 1 with medical tape or medical double-sided tape.

[0054] Stretch the non-woven fabric strip 6 to both sides, and attach the medical tape 61 on the outside of the non-woven fabric strip 6 to both sides of the wound. Pull the two sides of the wound together with the elastic band 62 to pull them towards the middle and attach them together. Then wrap the two ends of the bandage 1 around the outside of the wound and fix the two ends of the bandage 1 to the wound with the Velcro 11 on both sides.

[0055] When the PLGA film 21 comes into contact with the blood at the wound site, the PLGA reacts with the water, enzymes or other components in the blood and decomposes into lactic acid and glycolic acid, thereby canceling the seal on the sealing bag 2 and allowing the degreased cotton 23 inside the sealing bag 2 to directly adhere to the wound.

[0056] Finally, turn the handle 4 to disconnect the connecting ring 51 from the handle 4. By turning the handle 4, the transmission rod 41 drives the sealing plate 42 to rotate inside the pressure bladder 3, thereby removing the seal on the connecting hole 33. This allows the distilled water in the pressure bladder 3 to flow into the storage tank 32 through the connecting hole 33, allowing the storage tank 32 to dissolve in the distilled water. During this process, the distilled water absorbs heat and cools down, while the distilled water also cools the wound. After dissolving, the water reacts with the distilled water to produce ammonia gas, which is then transported into the pressure bladder 3 through the connecting hole 33. This causes the pressure bladder 3 to expand inside the bandage 1, applying pressure to the wound and aiding in hemostasis.

[0057] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A battlefield wound treatment device for first aid in a battlefield environment, comprising a bandage, characterized in that, It also includes two Velcro straps, which are symmetrically fixed to the outer walls of both ends of the bandage about the central axis of the bandage. The two Velcro straps can stick to each other to quickly fix the ends of the bandage. A sealing bag is detachably connected to the middle section of the bottom wall of the bandage. A drug storage component is located inside the sealing bag, which temporarily stores chlorhexidine and lidocaine. A pressure bladder is fixedly connected to the inner side of the top wall of the sealing bag, and its top wall is fixedly connected to the bottom wall of the bandage. The pressure bladder stores distilled water. An ammonium chloride storage component is located on the side wall of the middle section of the pressure bladder and stores ammonium chloride. A switch component is located inside the ammonium chloride storage component and controls the communication between the ammonium chloride storage component and the pressure bladder. A switch angle control component is located outside the ammonium chloride storage component and is connected to the rotating end of the switch component. A wound docking component is symmetrically fixed to both sides of the bottom wall of the sealing bag about the central axis of the sealing bag.

2. The battlefield wound treatment device based on battlefield environment rescue according to claim 1, characterized in that, The drug storage component includes degreased cotton fixedly connected to the inside of the sealed bag, a PLGA film fixedly connected to the middle section of the bottom wall of the sealed bag, and a sealing strip fixedly connected to the outer wall of the sealed bag on the side away from the switch component. The sealed bag temporarily stores chlorhexidine and lidocaine, and the degreased cotton absorbs the chlorhexidine and lidocaine during temporary storage.

3. The battlefield wound treatment device based on battlefield environment first aid according to claim 1, characterized in that, The ammonium chloride storage assembly includes a connecting pipe fixedly connected to the middle section of the outer wall of the pressure bladder on the side away from the sealing strip. A storage tank is fixedly connected to the outer wall of the connecting pipe on the side away from the pressure bladder. The storage tank stores ammonium chloride. A connecting through hole is opened on the side wall of the storage tank on the side near the pressure bladder.

4. The battlefield wound treatment device based on battlefield environment rescue according to claim 1, characterized in that, The switch assembly includes a transmission rod rotatably connected to the inside of the storage tank and a stop block fixedly connected to the middle section of the side wall of the connecting pipe. The end of the transmission rod away from the pressure bladder passes through the side wall of the storage tank and is fixedly connected to a rotating handle. The end of the transmission rod near the pressure bladder is fixedly connected to a sealing plate, and the sealing plate is engaged with the stop block.

5. The battlefield wound treatment device based on battlefield environment rescue according to claim 1, characterized in that, The switch angle control component includes an anti-slip sleeve fixedly connected to the outer wall of the storage tank. A connecting ring is fixedly connected to the outer wall of the anti-slip sleeve on the side away from the pressurization bladder. The connecting ring is detachably connected to the rotating handle and is used to limit the angle of the rotating handle.

6. The battlefield wound treatment device based on battlefield environment first aid according to claim 1, characterized in that, The wound docking assembly includes two non-woven fabric strips that are fixedly connected to the bottom wall of the sealing bag on both sides symmetrically about the central axis of the sealing bag. Medical tape is fixedly connected to the bottom wall of the non-woven fabric strips on the side facing each other, and multiple elastic bands are fixedly connected to the outer wall of the non-woven fabric strips on the side away from each other.

7. The battlefield wound treatment device based on battlefield environment first aid according to claim 1, characterized in that, The sealing plate has an area larger than the connecting through hole area, which can seal the connecting through hole.

8. The battlefield wound treatment device based on battlefield environment first aid according to claim 1, characterized in that, Before using the equipment, the sealing strip of the chlorhexidine and lidocaine in the sealed bag should be opened, and the chlorhexidine and lidocaine solution should be poured into the sealed bag. The chlorhexidine and lidocaine solution should be absorbed by the absorbent cotton. The chlorhexidine and lidocaine solution should not be stored in the sealed bag for more than 24 hours. During use, the medicines injected into the sealed bag can be replaced as needed. For example, the disinfectant can be replaced with medical alcohol or iodine; the local anesthetic can be replaced with benzocaine or other analgesics.

9. The battlefield wound treatment device based on battlefield environment rescue according to claim 2, characterized in that, The PLGA film reacts and dissolves with blood. PLGA reacts with water, enzymes or other components in the blood and can be decomposed into lactic acid and glycolic acid in the body. It will not be directly dissolved by chlorhexidine or lidocaine solution.

10. The battlefield wound treatment device based on battlefield environment first aid according to claim 9, characterized in that, The amount of ammonium chloride stored in the storage tank should be less than the standard amount, where the gas produced after the complete reaction of ammonium chloride and distilled water accounts for one-quarter of the maximum storage capacity of the pressurized bladder.

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