A field wound personnel hemostatic warming device

Abstract

This invention belongs to the field of medical supplies technology, specifically relating to a hemostatic and warming device for wounded personnel in the field. It includes a tourniquet and a box body. The tourniquet has a compression airbag. The box body has a horizontal plate dividing the space into an upper chamber and a lower chamber. The upper chamber is connected to the compression airbag via a flexible air delivery tube. The upper chamber contains carbonate solid powder, and the top wall of the upper chamber has a storage chamber containing quicklime powder. The top wall of the upper chamber has a pressing port communicating with the storage chamber. The outer wall of the box body has an elastic rubber sheet for covering the pressing port. The bottom wall of the storage chamber has a discharge port, and the outer wall of the storage chamber has a covering film for covering the discharge port. The elastic rubber sheet has a cutter for cutting the covering film. The lower chamber contains acid, and the box body has an infusion assembly for delivering the acid to the upper chamber. This invention can both generate gas to inflate the compression airbag for hemostasis and generate heat to warm the wounded, making it suitable for field / battlefield use.

Description

Technical Field

[0001] This invention belongs to the field of medical supplies technology, specifically relating to a hemostatic and warming device for wounded personnel in the field. Background Technology

[0002] If a person suffers significant bleeding from an external injury, the primary task is to stop the bleeding. Timely and effective hemostasis is crucial for saving the injured person's life, stabilizing their condition, and creating conditions for subsequent treatment. A tourniquet is typically used to stop the bleeding by compressing the blood vessel and blocking blood flow.

[0003] Existing tourniquets are mostly disposable bandages, often requiring assistance to use, which is inconvenient. Furthermore, if a person is alone in the field and suffers an arm injury, using a traditional tourniquet with one hand is difficult, resulting in ineffective hemostasis. Similarly, in battlefield situations, wounded soldiers may be operating alone, and using a traditional tourniquet with one hand after an arm injury is challenging and ineffective. Therefore, traditional tourniquets are not suitable for the needs of modern field environments. In addition, limited mobility after an injury in the field, coupled with significant bleeding, can easily lead to hypothermia in cold environments, increasing the risk to survival. Summary of the Invention

[0004] The present invention aims to provide a hemostatic and warming device for wounded personnel in the field, so as to solve the problem of the inconvenience of using traditional tourniquets in the field.

[0005] To achieve the above objectives, the present invention provides a hemostatic and warming device for wounded personnel in the field, comprising a tourniquet, one end of which is detachably connected to the other end, and a compression airbag on one side of the tourniquet; it also includes a housing, the housing containing a horizontal plate that divides the internal space of the housing into an independent upper chamber and a lower chamber, the top of the upper chamber being connected to an air supply hose, the end of which, away from the housing, is connected to the compression airbag; the upper chamber contains carbonate solid powder. The upper chamber has a storage chamber on its top wall, which contains quicklime powder. The top wall of the upper chamber has a pressing port that communicates with the storage chamber. The outer wall of the box has an elastic rubber sheet for covering the pressing port. A cutter is provided on the side of the elastic rubber sheet facing the storage chamber. The bottom wall of the storage chamber has a discharge port. The outer wall of the storage chamber has a covering film for covering the discharge port. The covering film can be cut by the cutter. The lower chamber contains acid, and the box has an infusion assembly for transporting the acid from the lower chamber to the upper chamber.

[0006] The working principle and beneficial effects of this solution are as follows: In this solution, the wounded soldier can independently wrap a tourniquet around the injured area. Then, the infusion unit delivers acid from the lower chamber to the upper chamber. The acid then reacts with the carbonate powder, producing a large amount of carbon dioxide gas. This carbon dioxide gas enters the compression bladder through the infusion tubing, causing the bladder to expand and compress blood vessels near the wound, thus stopping the bleeding. Throughout the process, the wounded soldier does not need to manually tighten the tourniquet, making it simple to operate and suitable for field / battlefield use. Furthermore, pressing the elastic rubber sheet causes the cutter to descend and cut the covering membrane, causing quicklime in the storage chamber to fall and react with water in the upper chamber, releasing a large amount of heat. This raises the temperature of the container, providing warmth for the wounded soldier and reducing the survival risk in cold environments.

[0007] Optionally, the infusion assembly includes a connecting tube, a squeeze ball, and two one-way valves I. One end of the connecting tube is connected to the upper chamber, and the other end of the connecting tube is connected to the lower chamber. The squeeze ball and the two one-way valves I are both installed on the connecting tube, and the two one-way valves I are located on both sides of the squeeze ball.

[0008] In this scheme, by intermittently squeezing and releasing the squeeze ball, the acid in the lower chamber is drawn into the squeeze ball under the action of the one-way valve I, and then squeezed out of the squeeze ball, thereby transporting the acid to the upper chamber. The operation is simple and can be operated with one hand.

[0009] Optionally, the infusion assembly includes a pump cylinder that vertically penetrates a horizontal plate. A piston is vertically slidably connected inside the pump cylinder, dividing the internal space of the pump cylinder into an injection chamber and a drainage chamber. The injection chamber is connected to an inlet pipe located in the lower chamber, and a one-way valve II is installed on the inlet pipe to introduce acid into the injection chamber. The drainage chamber is connected to a drainage pipe located in the upper chamber. The piston is provided with a pipe for connecting the injection chamber and the drainage chamber, and a one-way valve III is installed on the pipe to introduce acid into the drainage chamber. A piston rod is fixedly connected to the piston, and a channel for the piston rod to pass through is opened in the top wall of the upper chamber. A sealing ring is provided between the channel and the piston rod.

[0010] In this design, the piston rod is repeatedly pulled up and pushed down, causing the piston to slide vertically back and forth: when the piston slides upward, the volume of the water injection chamber increases and the internal pressure decreases, allowing the acid in the lower chamber to enter the water injection chamber through the inlet pipe; when the piston slides downward, the volume of the water injection chamber decreases and the internal pressure increases, allowing the acid in the water injection chamber to flow into the drain chamber through the pipe, and the acid in the drain chamber to be discharged into the upper chamber through the drain pipe. This process achieves the delivery of the acid.

[0011] Optionally, a lifting plate is provided at one end of the piston rod located outside the housing.

[0012] In this design, the lifting plate facilitates operation by the injured person.

[0013] Optionally, the transverse plate has several longitudinal plates on one side wall facing the upper chamber, which divide the interior space of the upper chamber into several storage compartments that are connected at the top.

[0014] In this scheme, after the acid enters the upper chamber, it first reacts with the carbonate solid powder in a certain storage cell. Once the liquid level in that storage cell is higher than the longitudinal plate, the acid enters the next storage cell, thereby controlling the amount of carbon dioxide produced.

[0015] Optionally, the storage compartment is provided with gauze for laying on the carbonate solid powder.

[0016] In this solution, gauze is used to cover the carbonate solid powder to prevent the carbonate solid powder from falling out of the storage compartment when the box is laid flat or accidentally inverted, thus keeping the carbonate solid powder contained.

[0017] Optionally, the connecting pipe has a bend at one end located in the upper chamber, with the bend facing the horizontal plate.

[0018] In this design, the curved pipe design causes the acid to flow downwards after entering the upper chamber, preventing the acid from flowing out in a parabolic trajectory.

[0019] Optionally, the air supply hose is connected to the compression airbag via a quick connector.

[0020] In this design, the quick connector allows for rapid connection / disconnection of the compression airbag and the air delivery hose, enabling the box to be placed separately from the tourniquet.

[0021] Optionally, the compression airbag is connected to a vent pipe, and an air valve is installed on the vent pipe.

[0022] In this procedure, after the bleeding has stopped for a period of time, the valve is opened, and the gas inside the airbag is released through the vent pipe, relieving the pressure on the injured person's blood vessels.

[0023] Optionally, the cutter has a cross-shaped cross section.

[0024] In this design, the cross-shaped cutter leaves cross-shaped marks on the covering film. Compared to straight cuts, the former makes it easier for quicklime in the storage room to fall off. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a hemostatic and warming device for wounded soldiers in the field according to Embodiment 1 of the present invention;

[0026] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0027] Figure 3This is a schematic diagram of the box structure in Embodiment 2 of the present invention. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] The markings in the accompanying drawings of the instruction manual include: tourniquet 1, box body 2, upper chamber 201, lower chamber 202, Velcro strap 3, compression airbag 4, vent tube 5, air valve 6, horizontal plate 7, air supply hose 8, quick connector 9, longitudinal plate 10, storage compartment 11, gauze 12, storage chamber 13, pressing port 14, elastic rubber sheet 15, discharge port 16, covering film 17, cutter 18, connecting pipe 19, squeeze ball 20, one-way valve I 21, bend 22, water pump 23, water injection chamber 2301, drainage chamber 2302, piston 24, water inlet pipe 25, one-way valve II 26, drainage pipe 27, pipe 28, one-way valve III 29, piston rod 30, lifting plate 31.

[0030] Example 1

[0031] This embodiment is basically as follows: Figure 1 , Figure 2 The diagram shows a hemostatic and warming device for wounded soldiers in the field, comprising a tourniquet 1 and a housing 2. One end of the tourniquet 1 is detachably connected to the other end. Specifically, one end of the tourniquet 1 is sewn with a Velcro strip, and the other end is sewn with a Velcro hook 3. The Velcro strip is located on one side of the tourniquet 1, and the Velcro hook 3 is located on the other side. Thus, after the wounded soldier wraps the tourniquet 1 around the injured area, the tourniquet 1 is worn by utilizing the adhesion between the Velcro strip and the hook 3. A pressure bladder 4 is fixed to one side of the tourniquet 1. After the tourniquet 1 is worn, the pressure bladder 4 comes into contact with the patient's skin. The pressure bladder 4 is connected to a venting tube 5, and a valve 6 is installed on the venting tube 5.

[0032] A horizontal plate 7 is fixedly connected inside the box body 2, which divides the internal space of the box body 2 into an independent upper chamber 201 and a lower chamber 202. The top of the upper chamber 201 is connected to an air supply hose 8. The end of the air supply hose 8 away from the box body 2 is connected to the compression airbag 4 through a quick connector 9. Specifically, the male end of the quick connector 9 is connected to the end of the air supply hose 8, and the female end of the quick connector 9 is connected to the compression airbag 4. The quick connector 9 is a two-way open and closed type.

[0033] A number of longitudinal plates 10 are fixedly connected to the upper surface of the horizontal plate 7. The longitudinal plates 10 divide the internal space of the upper chamber 201 into a number of storage compartments 11 that are connected at the top. In this embodiment, there are seven longitudinal plates 10 and eight storage compartments 11. Each storage compartment 11 contains carbonate solid powder, and a gauze 12 is provided in the storage compartment 11 for laying on the carbonate solid powder. The four sides of the gauze 12 are fixed to the inner side wall of the upper chamber 201 and the side wall of the longitudinal plates 10, thereby restricting the carbonate solid powder and preventing it from falling out of the storage compartment 11.

[0034] The upper chamber 201 has a storage chamber 13 on its top wall, which contains quicklime powder. The upper chamber 201 has a pressing port 14 that communicates with the storage chamber 13. An elastic rubber sheet 15 for covering the pressing port 14 is fixedly connected to the outer wall of the box body 2. The storage chamber 13 has a discharge port 16 on its bottom wall. The storage chamber 13 has a covering film 17 for covering the discharge port 16 on its outer wall. A cutter 18 for cutting the covering film 17 is fixedly connected to the elastic rubber sheet 15. In this embodiment, there are four storage chambers 13 (more can be set in other embodiments). The cross-section of the cutter 18 is cross-shaped. Thus, the cutter mark of the cutter 18 on the covering film 17 is cross-shaped, which makes it easier for the quicklime to fall off.

[0035] The lower chamber 202 contains acid, and the box body 2 is equipped with an infusion assembly that transports the acid in the lower chamber 202 to the upper chamber 201. In this embodiment, the acid is an aqueous hydrochloric acid solution. The infusion assembly includes a connecting pipe 19, a squeeze ball 20, and two one-way valves I 21. One end of the connecting pipe 19 is connected to the upper chamber 201, and the other end of the connecting pipe 19 is connected to the lower chamber 202. A bend 22 is welded to the end of the connecting pipe 19 located in the upper chamber 201, and the outlet port of the bend 22 faces downward. The squeeze ball 20 and the two one-way valves I 21 are both installed on the connecting pipe 19, and the two one-way valves I 21 are located on both sides of the squeeze ball 20.

[0036] In use, the injured person wraps tourniquet 1 around the injured area, using the adhesion between the hook and loop sides of the Velcro to achieve the tourniquet 1 application. At this time, the compression bladder 4 is in contact with the skin of the injured area. Then, the injured person repeatedly squeezes and releases the compression bulb 20. The change in volume of the compression bulb 20 causes a change in internal pressure. Under the action of the one-way valve I 21, the acid in the lower chamber 202 is drawn into the compression bulb 20, and then squeezed out, thereby delivering the acid to the upper chamber 201. During this process, under the guidance of the curved tube 22, the acid flows downward and then accurately flows into the first storage compartment 11. Figure 1(Counting from left to right) The acid reacts chemically with the carbonate solid powder in storage compartment 11, generating carbon dioxide gas. The carbon dioxide gas enters the compression airbag 4 through the gas delivery hose 8, causing the compression airbag 4 to inflate and apply pressure to the injured area. Furthermore, as the injured person continues to squeeze and release the squeeze ball 20, the acid continuously flows into the first storage compartment 11. Once the liquid level in the first storage compartment 11 is higher than the longitudinal plate 10, the acid flows into the second storage compartment 11, where it reacts chemically with the carbonate solid powder to generate carbon dioxide gas. This continues to deliver carbon dioxide gas to the compression airbag 4, increasing the pressure on the injured area until sufficient pressure is applied to stop blood flow and achieve hemostasis. Afterward, the injured person stops squeezing the squeeze ball 20, and the acid no longer enters the upper chamber 201, thus ceasing the generation of carbon dioxide gas. The injured person then disconnects the quick connector 9, separating the tourniquet 1 from the box body 2.

[0037] After the tourniquet 1 separates from the box 2, when the injured person feels cold, pressure is applied to the elastic rubber sheet 15. The elastic rubber sheet 15 deforms under pressure, causing the cutter 18 to move downwards and cut the covering film 17. After the injured person stops pressing the elastic rubber sheet 15, the elastic rubber sheet 15 returns to its original position, the cutter 18 moves upwards and returns to its original position, and a cross-shaped cut is created on the covering film 17. The quicklime powder in the storage chamber 13 falls out and reacts with the water in the storage compartment 11, releasing a large amount of heat. This raises the temperature of the box 2, providing warmth for the injured person and reducing the survival risk in a cold environment. Moreover, since there are multiple storage chambers 13, after the heat is used up, the injured person can press another elastic rubber sheet 15 to generate new heat for warmth.

[0038] Furthermore, after hemostasis is completed, the gas inside the compression bladder 4 can be released through the air valve 6, reducing the volume of the compression bladder 4, relieving pressure on the blood vessel, and making it easier to remove the tourniquet 1. Moreover, during the process of compressing the air bladder 4 to expand and stop the bleeding, if the injured person feels that the pressure is too high, some carbon dioxide gas can be released through the air valve 6, thereby reducing the pressure.

[0039] In summary, in this embodiment, even if a wounded person is bleeding in the wild, they can use the tourniquet 1 and the box 2 to stop the bleeding independently, without having to manually tighten the tourniquet 1, making the operation simple. Furthermore, the box 2 can be used to keep warm when feeling cold, reducing the survival risk in cold environments.

[0040] Example 2

[0041] The difference between this embodiment and Embodiment 1 is that the infusion assembly in this embodiment is different from the infusion assembly in Embodiment 1. The infusion assembly in this embodiment is as follows: Figure 3As shown, the device includes a pumping cylinder 23, which vertically penetrates a horizontal plate 7. A piston 24 is vertically slidably connected inside the pumping cylinder 23, dividing the internal space of the pumping cylinder 23 into a water injection chamber 2301 and a drainage chamber 2302. The water injection chamber 2301 is connected to a water inlet pipe 25, which is located in the lower chamber 202. A one-way valve II 26 for introducing acid into the water injection chamber 2301 is installed on the water inlet pipe 25. The drainage chamber 2302 is connected to a drainage pipe 27, which is located in the upper chamber 201. The outlet port of the drainage pipe 27 is integrally formed with a bend 22, and the outlet port of the bend 22 faces downward. The piston 24 is provided with a pipe 28 for connecting the water injection chamber 2301 and the drainage chamber 2302. A one-way valve III 29 for introducing acid into the drainage chamber 2302 is installed on the pipe 28. A piston rod 30 is fixedly connected to the piston 24. A channel for the piston rod 30 to pass through is provided on the top wall of the upper chamber 201. A sealing ring is provided between the channel and the piston rod 30 to ensure the airtightness of the upper chamber 201. A lifting plate 31 is welded to the top of the piston rod 30 so that the wounded person can lift the piston 24.

[0042] In use, after the injured person applies tourniquet 1 to the injured area, they pull the piston rod 30 upwards via the lifting plate 31. The piston 24 slides upwards, increasing the volume of the water injection chamber 2301 and decreasing the internal pressure. The one-way valve II 26 opens, and the acid flows into the water injection chamber 2301 through the water inlet pipe 25. Then, the injured person presses down the lifting plate 31, causing the piston 24 to slide downwards. The volume of the water injection chamber 2301 decreases, increasing the internal pressure. The one-way valve III 29 opens, and the acid in the water injection chamber 2301 flows into the drain chamber 2302 through the pipe 28. As the piston 24 slides back and forth, the amount of acid in the drain chamber 2302 increases and is discharged through the drain pipe 27 into the storage compartment 11 below the bend pipe 22. The acid comes into contact with the carbonate solid powder in the storage compartment 11 and reacts chemically to produce carbon dioxide gas, thereby supplying gas to the compression airbag 4, causing the compression airbag 4 to inflate and achieve hemostasis.

[0043] The above are merely embodiments of the present invention. The invention is not limited to the fields covered by these embodiments. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can improve and implement this solution based on the guidance provided in this application and their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness or practicality of the invention. The scope of protection claimed in this application should be determined by the content of its claims. The specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A hemostatic and warming device for wounded soldiers in the battlefield, comprising a tourniquet, one end of which is detachably connected to the other end, and a compression airbag is provided on one side of the tourniquet; characterized in that: The device also includes a housing with a horizontal plate dividing the interior into an upper chamber and a lower chamber. A gas delivery hose is connected to the top of the upper chamber, with the end of the hose furthest from the housing connected to a pressure bladder. The upper chamber contains carbonate solid powder, and a storage chamber containing quicklime powder is located on the top wall of the upper chamber. A pressing port communicating with the storage chamber is located on the top wall of the upper chamber. An elastic rubber sheet covering the pressing port is located on the outer wall of the housing, and a cutter is located on the side of the elastic rubber sheet facing the storage chamber. A discharge port is located on the bottom wall of the storage chamber, and a covering film covering the discharge port is located on the outer wall of the storage chamber. The covering film can be cut by the cutter. The lower chamber contains acid, and the housing is equipped with a delivery assembly for transferring the acid from the lower chamber to the upper chamber.

2. The battlefield wounded personnel hemostasis and heat preservation device according to claim 1, characterized in that: The infusion assembly includes a connecting tube, a squeeze ball, and two one-way valves I. One end of the connecting tube is connected to the upper chamber, and the other end of the connecting tube is connected to the lower chamber. The squeeze ball and the two one-way valves I are both installed on the connecting tube, and the two one-way valves I are located on both sides of the squeeze ball.

3. The battlefield wounded personnel hemostasis and heat preservation device according to claim 1, characterized in that: The infusion assembly includes a pump cylinder that vertically penetrates a horizontal plate. A piston is vertically slidably connected inside the pump cylinder, dividing the internal space of the pump cylinder into an injection chamber and a drainage chamber. The injection chamber is connected to an inlet pipe located in the lower chamber, and a one-way valve II is installed on the inlet pipe to introduce acid into the injection chamber. The drainage chamber is connected to a drainage pipe located in the upper chamber. The piston is equipped with a pipe for connecting the injection chamber and the drainage chamber, and a one-way valve III is installed on the pipe to introduce acid into the drainage chamber. A piston rod is fixedly connected to the piston, and a channel for the piston rod to pass through is opened in the top wall of the upper chamber. A sealing ring is provided between the channel and the piston rod.

4. The battlefield wounded personnel hemostasis and heat preservation device according to claim 3, characterized in that: The piston rod has a lifting plate at one end outside the box.

5. The battlefield wounded personnel hemostasis and heat preservation device according to claim 1, characterized in that: The horizontal plate has several longitudinal plates on the side wall facing the upper chamber, which divide the internal space of the upper chamber into several storage compartments that are connected at the top.

6. The battlefield wounded personnel hemostasis and heat preservation device according to claim 5, characterized in that: The storage compartment is equipped with gauze for laying on carbonate solid powder.

7. The battlefield wounded personnel hemostasis and heat preservation device according to claim 2, characterized in that: The connecting pipe has a bend at one end located in the upper chamber, with the bend facing the horizontal plate.

8. The battlefield wounded personnel hemostasis and heat preservation device according to claim 1, characterized in that: The air supply hose is connected to the compression airbag via a quick connector.

9. The battlefield wounded personnel hemostasis and heat preservation device according to claim 1, characterized in that: The compression airbag is connected to a vent pipe, and an air valve is installed on the vent pipe.

10. The battlefield wounded personnel hemostasis and heat preservation device according to claim 1, characterized in that: The cutter has a cross-shaped cross section.

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