Single-soldier portable wound debridement instrument based on negative pressure suction

Abstract

This invention relates to the field of wound cleaning technology and discloses a portable wound cleaning device for individual soldiers based on negative pressure suction. The device includes a main body, and further includes: a suction chamber located on one side of the upper part of the main body, used to absorb waste fluid generated during wound cleaning; a storage chamber located at the bottom of the main body, containing a liquid sac; a placement chamber located on the other side of the top of the main body, containing a liquid sac filled with cleaning fluid; and a protective cover fixedly installed at one end of the main body, with a cleaning tube fixed to that end of the main body, located inside the protective cover. A second plug is fixed to the inner side of the placement chamber. This invention allows for rapid wound cleaning and creates negative pressure to collect waste fluid, avoiding secondary contamination from the external environment. Furthermore, the cleaning fluid is discharged at a moderate and uniform speed throughout the process, preventing excessively rapid discharge from impacting the wound and causing further injury, thus improving the effectiveness of the device.

Description

Technical Field

[0001] This invention relates to the field of wound cleaning instruments, and more particularly to a portable wound cleaning instrument for individual soldiers based on negative pressure suction. Background Technology

[0002] A wound debridement device is a surgical and trauma treatment instrument that effectively cleans wounds and lesions by rinsing them with a cleaning solution to remove necrotic tissue, pus, and foreign bodies, thereby promoting wound healing and preventing infection.

[0003] Current wound cleaning devices are not only bulky and not portable, but also require electrical control, making them unsuitable for individual soldier use and reducing their effectiveness. Failure to clean wounds can lead to infection. Therefore, there is an urgent need to design a portable wound cleaning device for individual soldiers that uses negative pressure suction. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a portable wound debridement device for individual soldiers based on negative pressure suction.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A portable wound debridement device for individual soldiers based on negative pressure suction, including the main unit, and also including: The fluid extraction chamber is located on one side of the upper part of the main body. The fluid extraction chamber is used to absorb the waste fluid generated during wound cleaning, so as to avoid secondary pollution caused by the dripping of waste fluid. The storage compartment is located at the bottom of the main body and contains a liquid bladder. It should be noted that there is also a liquid bladder without cleaning fluid inside the storage compartment, which is used to drain the waste liquid inside the liquid extraction compartment during the first use into the liquid bladder. The placement chamber is located on the other side of the top of the main body, and the interior of the placement chamber is used to hold a liquid sac filled with cleaning fluid. When the liquid sac is squeezed, it can be discharged to clean and debride the wound. The protective cover is fixedly installed at one end of the main body, and a cleaning tube is also fixed at that end of the main body. The cleaning tube is located inside the protective cover. A second plug is fixed on the inner side of the placement chamber, and the second plug is connected to the cleaning tube. When the second plug is inserted into the interface on the liquid bladder, the second plug is connected to the inside of the liquid bladder. When the liquid bladder is squeezed, the cleaning fluid inside the liquid bladder will be discharged through the cleaning tube. It should be noted that an exhaust valve can be installed on the protective cover.

[0006] As a further technical solution of the present invention, a piston plate and a connecting plate are slidably arranged inside the liquid extraction chamber, and two fixed first spring rods are fixed between the piston plate and the connecting plate. The main body is provided with a locking mechanism for locking the piston plate. When the connecting plate moves and the locking mechanism releases the piston plate, the tension generated by the first spring rods will cause the piston plate to move.

[0007] As a further technical solution of the present invention, a strip block is slidably installed on one side inside the liquid extraction chamber. The strip block is limited by a fixed limiting rod inside the liquid extraction chamber. A lead screw is also rotatably installed on the inner side of the liquid extraction chamber. The surface of the lead screw is connected to the inside of the strip block by a thread. A knob is rotatably installed on the outside of the body. The end face of the knob is fixedly installed at the center of the end face of the lead screw by a connecting shaft, which is used to drive the strip block to move by rotating the lead screw.

[0008] As a further technical solution of the present invention, a movable rod is rotatably mounted on the side of the strip block, and the other end of the movable rod is rotatably mounted on the side of the connecting plate, which is used to convert the lateral movement of the strip block into the longitudinal movement of the connecting plate.

[0009] As a further technical solution of the present invention, a sliding column is horizontally fixedly installed on the side of the piston plate, and the sliding column passes through the connecting plate. The surface of the sliding column is slidably disposed inside the connecting plate. Two symmetrically arranged U-shaped inclined plates are fixed on the surface of the sliding column, and the U-shaped inclined plates are located on the side of the connecting plate away from the piston plate. The sliding column is used to control the moving speed of the piston plate, ensuring that the cleaning fluid is discharged from the liquid bladder at a moderate speed, and avoiding the situation where the cleaning fluid discharges too quickly and impacts the wound, causing the wound to become too severe.

[0010] As a further technical solution of the present invention, two fixed plates are fixed inside the liquid extraction chamber, which are symmetrically arranged with sliding columns. A third spring rod is fixed on the side of each fixed plate, and a U-shaped frame is fixed on the telescopic end of the third spring rod. A rubber wheel is fixedly installed between the two short sides of the U-shaped frame. The rubber wheel is in contact with the sliding column and is used to control the speed of the sliding column movement by the friction between the rubber wheel and the sliding column.

[0011] As a further technical solution of the present invention, a side plate is fixedly installed at the bottom of the long side of each U-shaped frame, and a protrusion is fixedly installed at the end of the corresponding side of each side plate. The protrusion contacts the side of the corresponding U-shaped inclined plate. As the U-shaped inclined plate and the sliding column move downward, the U-shaped inclined plate will drive the rubber wheel to move by squeezing the protrusion, so as to change the friction between the rubber wheel and the sliding column.

[0012] As a further technical solution of the present invention, a first plug connected to the suction chamber is fixed on the side of the main body, and a first one-way valve is installed on the first plug to control the discharge of waste liquid inside the suction chamber through the first plug. A protective sleeve is provided on the outside of the first plug to prevent the first plug from being exposed. A waste liquid pipe connected to the suction chamber is fixed on the side of the main body, and a second one-way valve is installed on the surface of the waste liquid pipe. After passing through the storage chamber, the waste liquid pipe is fixedly installed on the surface of the protective cover. The waste liquid pipe is connected to the inside of the protective cover to draw the cleaning solution for cleaning wounds into the suction chamber, thereby preventing secondary pollution caused by waste liquid dripping.

[0013] As a further technical solution of the present invention, a squeezing plate is slidably arranged inside the placement chamber, and a connecting column is fixed at each of the four ends of the side of the squeezing plate. The tops of the four connecting columns pass through the placement chamber into the liquid extraction chamber and are fixedly installed on the side of the piston plate. When the piston plate moves to extract liquid, it drives the squeezing plate to move and simultaneously discharge the cleaning fluid in the liquid bladder to clean the wound.

[0014] As a further technical solution of the present invention, the locking mechanism includes: an insert plate, which is horizontally disposed inside the liquid extraction chamber, and the end of the insert plate passes through the body. The surface of the insert plate slides inside the body. A pull plate is disposed outside the body, and the end of the insert plate is fixedly installed on the side of the pull plate. Two second spring rods installed on the side of the body are fixedly fixed on the side of the pull plate. The end of the piston plate is provided with a slot that matches the end of the insert plate. The insert plate can be inserted into the slot to limit the piston plate. The insert plate is used to limit the piston plate. When the insert plate moves, the limitation on the piston plate can be released.

[0015] The beneficial effects of this invention are as follows: This invention, through the design of a suction chamber, a storage chamber, a placement chamber, and a protective cover, enables rapid wound cleaning. The device is compact and portable, and can manually create negative pressure to collect waste fluid without the need for power. The waste fluid is sealed and stored to prevent secondary pollution from the external environment. Furthermore, the cleaning fluid is discharged at a moderate and uniform speed throughout the process, avoiding the possibility of the cleaning fluid impacting the wound too quickly and aggravating the injury, thus improving the effectiveness of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the portable wound debridement device for individual soldiers based on negative pressure suction proposed in this invention. Figure 2 This is a rear view schematic diagram of the portable wound debridement device for individual soldiers based on negative pressure suction proposed in this invention; Figure 3 This is a side cross-sectional view of the portable wound debridement device for individual soldiers based on negative pressure suction proposed in this invention. Figure 4 This is a schematic diagram of the top cross-sectional structure of the portable wound debridement device for individual soldiers based on negative pressure suction proposed in this invention; Figure 5 This is a schematic diagram of the internal structure of the storage compartment of the portable wound debridement device for individual soldiers based on negative pressure suction proposed in this invention; Figure 6 This is a schematic diagram of the structure of the portable wound debridement device for individual soldiers based on negative pressure suction proposed in this invention after the main body has been removed. Figure 7 This is a schematic diagram of the U-shaped inclined plate and its connection structure of the portable wound debridement device for individual soldiers based on negative pressure suction proposed in this invention. Figure 8 for Figure 7 An enlarged schematic diagram of part A in the middle.

[0017] In the diagram: 1. Main body; 2. Liquid bladder; 3. Protective cover; 4. Cleaning pipe; 5. Waste liquid pipe; 6. First plug; 7. Knob; 8. Placement chamber; 9. Liquid extraction chamber; 10. Storage chamber; 11. Squeezing plate; 12. Piston plate; 13. Connecting plate; 14. Connecting column; 15. Second plug; 16. Strip block; 17. Movable rod; 18. First spring rod; 19. Insert plate; 20. Pull plate; 21. Second spring rod; 22. Sliding column; 23. Lead screw; 24. Fixing plate; 25. Third spring rod; 26. U-shaped frame; 27. Rubber wheel; 28. Side plate; 29. ​​Protrusion; 30. U-shaped inclined plate. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see the appendix Figure 1 -Appendix Figure 8 A portable wound cleaning device for individual soldiers based on negative pressure suction includes a main body 1, and further includes: a suction chamber 9, a storage chamber 10, a placement chamber 8, and a protective cover 3. The suction chamber 9 is located on the upper side of the main body 1 and is used to absorb waste fluid generated during wound cleaning, preventing secondary pollution caused by waste fluid dripping. The storage chamber 10 is located at the bottom inside the main body 1 and contains a liquid sac 2. It should be noted that the storage chamber 10 also contains a liquid sac 2 without cleaning fluid, which is used to drain the waste fluid from the suction chamber 9 during the first use into the liquid sac 2. The placement chamber 8 is located on the main body 1. On the other side of the top, the placement chamber 8 is used to place the liquid bladder 2 filled with cleaning fluid. When the liquid bladder 2 is squeezed, it can be discharged to clean and debride the wound. The protective cover 3 is fixedly installed at one end of the main body 1, and the cleaning tube 4 is also fixed at this end of the main body 1. The cleaning tube 4 is located inside the protective cover 3. A second plug 15 is fixed on the inner side of the placement chamber 8, and the second plug 15 is connected to the cleaning tube 4. When the second plug 15 is inserted into the interface on the liquid bladder 2, the second plug 15 is connected to the inside of the liquid bladder 2. When the liquid bladder 2 is squeezed, the cleaning fluid inside the liquid bladder 2 will be discharged through the cleaning tube 4. It should be noted that an exhaust valve can be installed on the protective cover 3.

[0021] Please see the appendix Figure 1-Appendix Figure 6 In a preferred embodiment, a piston plate 12 and a connecting plate 13 are slidably disposed inside the liquid extraction chamber 9, and two fixed first spring rods 18 are fixed between the piston plate 12 and the connecting plate 13. The main body 1 is provided with a locking mechanism for locking the piston plate 12. When the connecting plate 13 moves and the locking mechanism releases the locking of the piston plate 12, the tension generated by the first spring rods 18 will cause the piston plate 12 to move.

[0022] Please see the appendix Figure 4 -Appendix Figure 8 In a preferred embodiment, a strip block 16 is slidably installed on one side inside the liquid extraction chamber 9. The strip block 16 is limited by a fixed limiting rod inside the liquid extraction chamber 9. A lead screw 23 is also rotatably installed on the inner side of the liquid extraction chamber 9. The surface of the lead screw 23 is threaded to the inside of the strip block 16. A knob 7 is rotatably installed on the outside of the body 1. The end face of the knob 7 is fixedly installed at the center of the end face of the lead screw 23 through a connecting shaft, and is used to drive the strip block 16 to move by rotating the lead screw 23.

[0023] Please see the appendix Figure 1 -Appendix Figure 5 In a preferred embodiment, a movable rod 17 is rotatably mounted on the side of the strip block 16, and the other end of the movable rod 17 is rotatably mounted on the side of the connecting plate 13, for converting the lateral movement of the strip block 16 into the longitudinal movement of the connecting plate 13.

[0024] Please see the appendix Figure 2 -Appendix Figure 8 In a preferred embodiment, a sliding column 22 is horizontally fixedly installed on the side of the piston plate 12, and the sliding column 22 passes through the connecting plate 13. The surface of the sliding column 22 is slidably disposed inside the connecting plate 13. Two symmetrically arranged U-shaped inclined plates 30 are fixed on the surface of the sliding column 22, and the U-shaped inclined plates 30 are located on the side of the connecting plate 13 away from the piston plate 12. The sliding column 22 is used to control the moving speed of the piston plate 12, ensuring that the cleaning fluid is discharged from the liquid bladder 2 at a moderate speed, and avoiding the situation where the cleaning fluid discharges too quickly and impacts the wound, causing the wound to become too severe.

[0025] Please see the appendix Figure 2 -Appendix Figure 8 In a preferred embodiment, two fixed plates 24 are fixed inside the liquid extraction chamber 9, which are symmetrically arranged with sliding columns 22. Each fixed plate 24 has a third spring rod 25 fixed on its side, and a U-shaped frame 26 is fixed to the telescopic end of the third spring rod 25. A rubber wheel 27 is fixedly installed between the two short sides of the U-shaped frame 26. The rubber wheel 27 is in contact with the sliding column 22 and is used to control the speed of movement of the sliding column 22 by the friction between the rubber wheel 27 and the sliding column 22.

[0026] Please see the appendix Figure 1-Appendix Figure 8 In a preferred embodiment, a side plate 28 is fixedly installed at the bottom of the long side of each U-shaped frame 26, and a protrusion 29 is fixedly installed at the corresponding side end of each side plate 28. The protrusion 29 contacts the side of the corresponding U-shaped inclined plate 30. As the U-shaped inclined plate 30 and the sliding column 22 move downward, the U-shaped inclined plate 30 will drive the rubber wheel 27 to move by squeezing the protrusion 29, so as to change the friction between the rubber wheel 27 and the sliding column 22.

[0027] Please see the appendix Figure 1 -Appendix Figure 3 In a preferred embodiment, a first plug 6 connected to the suction chamber 9 is fixed to the side of the main body 1, and a first one-way valve is installed on the first plug 6 to control the discharge of waste liquid inside the suction chamber 9 through the first plug 6. A protective sleeve is provided on the outside of the first plug 6 to prevent the first plug 6 from being exposed. A waste liquid pipe 5 connected to the suction chamber 9 is fixed to the side of the main body 1. A second one-way valve is installed on the surface of the waste liquid pipe 5, and the waste liquid pipe 5 is fixed to the surface of the protective cover 3 after passing through the storage chamber 10. The waste liquid pipe 5 is connected to the inside of the protective cover 3 to draw the cleaning fluid for cleaning wounds into the suction chamber 9, thereby preventing secondary pollution caused by waste liquid dripping.

[0028] Please see the appendix Figure 1 -Appendix Figure 5 In a preferred embodiment, a squeezing plate 11 is slidably disposed inside the placement chamber 8, and a connecting post 14 is fixed at each of the four ends of the side of the squeezing plate 11. The top ends of the four connecting posts 14 pass through the placement chamber 8 into the liquid extraction chamber 9 and are fixedly installed on the side of the piston plate 12. When the piston plate 12 moves to extract liquid, it drives the squeezing plate 11 to move and simultaneously discharge the cleaning fluid in the liquid sac 2 to clean the wound.

[0029] Please see the appendix Figure 1 -Appendix Figure 8 In a preferred embodiment, the locking mechanism includes: an insert plate 19, which is horizontally disposed inside the liquid extraction chamber 9, with its end passing through the body 1. The surface of the insert plate 19 slides within the body 1. A pull plate 20 is disposed outside the body 1, and the end of the insert plate 19 is fixedly installed on the side of the pull plate 20. Two second spring rods 21, which are installed on the side of the body 1, are fixedly installed on the side of the pull plate 20. A slot is provided at the end of the piston plate 12 that matches the end of the insert plate 19. The insert plate 19 can be inserted into the slot to limit the piston plate 12. The insert plate 19 is used to limit the piston plate 12. When the insert plate 19 moves, the limitation on the piston plate 12 can be released.

[0030] When wound cleaning is required, the liquid sac 2 inside the storage compartment 10 is removed and placed inside the placement compartment 8, and the second plug 15 needs to be inserted into the interface on the liquid sac 2 so that the second plug 15 and the inside of the liquid sac 2 are connected. It should be noted that the interface on the liquid sac 2 is equivalent to the interface on the drip bag. Next, turn the knob 7 to drive the lead screw 23 to rotate. The rotation of the lead screw 23 drives the strip block 16 to move. The movement of the strip block 16 drives the movable rod 17 to move. The movement of the movable rod 17 drives the connecting plate 13 to move. Because the insertion plate 19 limits the piston plate 12 at this time, the first spring rod 18 will generate a pulling force when the connecting plate 13 moves. Then, the user picks up the main body 1, places the protective cover 3 over the wound, and pulls the pull plate 20 with their fingers to move the insert plate 19 and generate a pulling force on the second spring rod 21. The insert plate 19 will release the lock on the piston plate 12. At this time, the pulling force generated by the first spring rod 18 will cause the piston plate 12 to move closer to the connecting plate 13. Due to the setting of the first one-way valve and the second one-way valve, the second one-way valve is open and the first one-way valve is closed. The movement of the piston plate 12 will cause the waste liquid pipe 5 to start drawing waste liquid. It should be noted that at the beginning, since there is no waste liquid inside the protective cover 3, a negative pressure will be formed inside the protective cover 3 so that the protective cover 3 can be firmly attached to the skin and prevent the waste liquid from falling out. Additionally, the movement of piston plate 12 will also cause sliding column 22 and connecting column 14 to move. The movement of connecting column 14 will cause squeezing plate 11 to move, and squeezing plate 11 will squeeze liquid sac 2. The cleaning fluid inside liquid sac 2 will then be discharged to clean the wound. As the cleaning fluid is discharged, waste fluid pipe 5 will draw waste fluid into suction chamber 9 to complete the collection of waste fluid. The movement of sliding column 22 will cause U-shaped inclined plate 30 to move. Due to the shape design of U-shaped inclined plate 30, as U-shaped inclined plate 30 moves, it pushes protrusion 29 to move away from sliding column 22. The motor drives the U-shaped frame 26 and the rubber wheel 27 to move away from the slide column 22, so as to gradually reduce the friction force of the rubber wheel 27 on the slide column 22. Since the tension generated by the first spring rod 18 is at its maximum when it is just released, the friction force of the slide column 22 on the rubber wheel 27 is also at its maximum at the beginning, ensuring the consistency of the movement speed of the slide column 22. This further makes the piston plate 12 and the extrusion plate 11 move at a constant speed throughout the process, so as to achieve a moderate speed of cleaning fluid discharge and avoid the cleaning fluid being discharged too quickly and impacting the wound, causing the injury to worsen. After use, the empty liquid bladder 2 inside the storage chamber 10 can be removed, and the interface of the liquid bladder 2 can be connected to the first plug 6. Then, the knob 7 is reversed to reset all components. The piston plate 12 will reset and discharge the waste liquid inside the liquid extraction chamber 9 into the empty liquid bladder 2 through the first plug, thus completing the collection of waste liquid. Then, the used liquid bladder 2 can be removed. It should be noted that when collecting waste liquid again, the liquid bladder 2 used last time can be used. In summary, it can quickly clean wounds, and the device itself is small and easy to carry. In addition, it does not require a power source and can manually create negative pressure to collect waste liquid, which is then sealed and stored to avoid secondary pollution from the external environment.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A portable wound debridement device for individual soldiers based on negative pressure suction, comprising a main body (1), characterized in that, Also includes: The liquid extraction chamber (9) is located on one side above the main body (1) and is used to absorb the waste liquid generated during debridement. Storage compartment (10), which is located at the bottom of the main body (1) and contains a liquid bladder (2). Placement compartment (8), which is located on the other side of the top of the main body (1), and the interior of the placement compartment (8) is used to place a liquid bladder (2) filled with cleaning fluid. The protective cover (3) is fixedly installed at one end of the main body (1), and the end of the main body (1) is also fixed with a cleaning pipe (4). The cleaning pipe (4) is located inside the protective cover (3). The inner side of the placement chamber (8) is fixed with a second plug (15), and the second plug (15) is connected to the cleaning pipe (4).

2. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 1, characterized in that, The liquid extraction chamber (9) is slidably provided with a piston plate (12) and a connecting plate (13), and two fixed first spring rods (18) are fixed between the piston plate (12) and the connecting plate (13). The main body (1) is provided with a locking mechanism for locking the piston plate (12).

3. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 2, characterized in that, A strip block (16) is slidably installed on one side inside the liquid extraction chamber (9), and a lead screw (23) is rotatably installed on the inner side of the liquid extraction chamber (9). The surface of the lead screw (23) is connected to the inside of the strip block (16) by a thread. A knob (7) is rotatably installed on the outside of the main body (1). The end face of the knob (7) is fixedly installed at the center of the end face of the lead screw (23) by a connecting shaft.

4. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 3, characterized in that, The side of the strip block (16) is rotatably mounted with a movable rod (17), and the other end of the movable rod (17) is rotatably mounted on the side of the connecting plate (13).

5. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 2, characterized in that, A sliding column (22) is horizontally fixed on the side of the piston plate (12), and the sliding column (22) passes through the connecting plate (13). The surface of the sliding column (22) is slidably disposed inside the connecting plate (13). Two symmetrically arranged U-shaped inclined plates (30) are fixed on the surface of the sliding column (22), and the U-shaped inclined plates (30) are located on the side of the connecting plate (13) away from the piston plate (12).

6. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 5, characterized in that, The liquid extraction chamber (9) has two fixed plates (24) symmetrically arranged with sliding columns (22) inside. Each fixed plate (24) has a third spring rod (25) fixed on its side, and the telescopic end of the third spring rod (25) is fixed with a U-shaped frame (26). A rubber wheel (27) is fixed between the two short sides of the U-shaped frame (26), and the rubber wheel (27) is in contact with the sliding column (22).

7. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 6, characterized in that, Each of the U-shaped frames (26) has a side plate (28) fixedly installed at the bottom of its long side, and each side plate (28) has a protrusion (29) fixedly installed at the end of its corresponding side side, the protrusion (29) and the corresponding side of the U-shaped inclined plate (30) being in contact.

8. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 1, characterized in that, The main body (1) has a first plug (6) fixed on its side that communicates with the liquid extraction chamber (9), and a first one-way valve is installed on the first plug (6). The first plug (6) is covered with a protective sleeve. The main body (1) has a waste liquid pipe (5) fixed on its side that communicates with the liquid extraction chamber (9). A second one-way valve is installed on the surface of the waste liquid pipe (5). The waste liquid pipe (5) passes through the storage chamber (10) and is fixedly installed on the surface of the protective cover (3). The waste liquid pipe (5) communicates with the inside of the protective cover (3) and is used to draw the cleaning fluid for cleaning wounds into the liquid extraction chamber (9).

9. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 2, characterized in that, The placement chamber (8) is slidably provided with a squeezing plate (11), and the four ends of the squeezing plate (11) are fixed with connecting columns (14). The tops of the four connecting columns (14) pass through the placement chamber (8) into the liquid extraction chamber (9) and are then fixedly installed on the side of the piston plate (12).

10. The portable wound debridement device for individual soldiers based on negative pressure suction according to claim 2, characterized in that, The locking mechanism includes: a plug plate (19), which is horizontally arranged inside the liquid extraction chamber (9), and the end of the plug plate (19) passes through the body (1). A pull plate (20) is provided outside the body (1), and the end of the plug plate (19) is fixedly installed on the side of the pull plate (20). Two second spring rods (21) are fixed on the side of the pull plate (20) and installed on the side of the body (1). The piston plate (12) has a slot that matches the end of the plug plate (19), and the plug plate (19) can be inserted into the slot to limit the piston plate (12).

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