Disposable wound compression hemostasis device for pre-hospital emergency care
By using a closed-loop monitoring system with strip-shaped airbags and sensing components in pre-hospital emergency care, precise control of hemostatic pressure is achieved, solving the problem of inaccurate hemostatic pressure control in existing technologies, improving the safety of hemostatic operations and simplifying the operation process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-26
- Publication Date
- 2026-04-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing pre-hospital emergency hemostasis techniques are difficult to precisely control hemostasis pressure and pose safety risks due to insufficient or excessive pressure. Traditional methods are complicated to operate in complex environments and are not convenient for continuous pressure application.
A hemostatic device comprising a strip-shaped airbag, a sensing component, and multiple fixing mechanisms was designed. A closed-loop monitoring system consisting of a pressure sensor, a PLC controller, and a display was used to achieve real-time and precise control and display of the hemostatic force. Combined with an air injection component, an air release component, and a fastening component, the stability of the airbag shape and the uniform distribution of pressure were ensured.
It enables precise control of blood pressure in pre-hospital emergency scenarios, avoiding the risks of insufficient or excessive pressure, improving the safety and controllability of hemostasis operations, simplifying the operation process for non-professionals, and shortening emergency response time.
Smart Images
Figure CN121845673A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hemostatic devices, specifically a disposable wound pressure hemostatic device for pre-hospital emergency care. Background Technology
[0002] Pre-hospital emergency care scenarios are characterized by their suddenness, complex environments, limited medical resources, and extremely high timeliness requirements. Injured individuals often require immediate hemostasis at scenes lacking specialized medical equipment (such as traffic accident sites, disaster sites, or everyday accidents). In these situations, disposable wound hemostasis devices offer rapid response, preventing shock or life-threatening situations caused by massive blood loss. Furthermore, the disposable design eliminates the risk of cross-infection, requiring no sterilization or maintenance; they are ready to use immediately upon opening. This makes them particularly suitable for non-professional emergency personnel or first responders to provide initial treatment within the golden rescue time, buying valuable time for subsequent professional medical intervention. However, existing wound hemostasis techniques still have several shortcomings. Traditional manual compression, while simple and direct, is difficult to maintain and occupies the rescuer's hands, making it impractical during transport or in situations involving multiple injuries. Conventional bandages, on the other hand, provide insufficient pressure for deep or arterial bleeding, resulting in limited hemostasis and difficulty in ensuring even pressure distribution. While specialized tourniquets can effectively block blood flow to limbs, pressure control often relies on experience, and excessive pressure can lead to nerve or soft tissue damage or limb necrosis, while insufficient pressure may fail to achieve effective hemostasis. Therefore, we propose a disposable wound pressure hemostasis device for pre-hospital emergency care. Summary of the Invention
[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a disposable wound pressure hemostasis device for pre-hospital emergency care, which can accurately control the hemostasis pressure and monitor it in real time, and can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a disposable wound pressure hemostasis device for pre-hospital emergency care, comprising a strip-shaped airbag and a sensing component; Strip-shaped airbag: The interior is fixed with evenly distributed reinforcing soft frames, the side of the strip-shaped airbag is equipped with an air injection component, and the top of the strip-shaped airbag is equipped with an air depletion component and a fastening component. The sensing component includes a fixing cover, a connecting cover, a battery, a PLC controller, a display, and a pressure sensor. An opening is formed in the middle of the upper side of the strip-shaped airbag, and the fixing cover is fixed inside the opening. The pressure sensor is installed inside the fixing cover. The connecting cover is fixed to the upper end of the fixing cover, and the battery and PLC controller are installed inside the connecting cover. A groove is formed on the upper side of the connecting cover, and the display is installed inside the groove. The input terminal of the PLC controller is electrically connected to the output terminal of the battery, and the output terminal of the PLC controller is electrically connected to the input terminal of the display. The PLC controller and the pressure sensor are bidirectionally electrically connected. After inflation, the strip-shaped airbag applies uniform pressure to the wound to promote hemostasis. The pressure sensor in the sensing component monitors the pressure value in real time, processes the data through the PLC controller, and displays it on the display, enabling medical personnel to accurately control the hemostatic pressure, avoid insufficient or excessive pressure, and improve emergency safety.
[0005] Furthermore, the inflation assembly includes a connecting hose, a compression airbag, an air inlet tube, and a one-way valve. An inflation port is provided on the front side of the strip-shaped airbag, and a connecting hose is fixed inside the inflation port. The right end of the connecting hose is fixed inside the air outlet of the compression airbag. An air inlet is provided on the surface of the compression airbag, and an air inlet tube is fixed inside the air inlet. A one-way valve is installed on the circumferential surface of the air inlet tube. The inflation assembly allows manual inflation of the strip-shaped airbag via the compression airbag. The one-way valve ensures that gas can only flow in one direction, preventing backflow, making the inflation process simple and quick, and suitable for emergency situations in pre-hospital emergency care.
[0006] Furthermore, the exhaust assembly includes an internal threaded ring, a threaded post, and a dial. The upper end of the strip-shaped airbag has an exhaust port. An internal threaded ring is fixed inside the exhaust port. The internal threaded ring is connected to a threaded post. The upper end of the threaded post is fixed with a dial. The exhaust assembly controls the opening and closing of the exhaust port by rotating the dial to move the threaded post within the internal threaded ring, allowing for slow or rapid gas release. This facilitates pressure adjustment or release and avoids secondary injury caused by sudden decompression.
[0007] Furthermore, the fastening assembly includes a fixing block, a rotating block, a rotating shaft, a connecting groove, a torsion spring, an arc-shaped fastening plate, and a pull block. Two corresponding fixing blocks are fixed to the upper side of the strip-shaped airbag, and a rotating block is disposed between the two fixing blocks. A fixing hole is opened in the middle of the rotating block, and a rotating shaft is fixed inside the fixing hole. The rotating shaft is rotatably connected between the two fixing blocks. Two corresponding torsion springs are sleeved on the circumferential surface of the rotating shaft. Grooves are opened on both the left and right sides of the rotating block. One end of the torsion spring is fixed inside the groove, and the other end of the torsion spring is fixed to the side of the corresponding fixing block. An arc-shaped fastening plate is fixed to the rear side of the rotating block, and the connecting hose is located inside the arc-shaped fastening plate. A pull block is fixed to the upper end of the surface of the arc-shaped fastening plate. The fastening assembly uses the elastic force of the torsion spring to press the arc-shaped fastening plate tightly against the connecting hose, preventing it from loosening or twisting during operation and ensuring a stable inflation process. The pull block facilitates quick release of the connecting hose for easy maintenance or replacement.
[0008] Furthermore, a first Velcro closure is fixed to the left end of both the front and rear sides of the strip-shaped airbag, and a connecting strip is fixed to the right end of the upper side of the strip-shaped airbag. Two corresponding first Velcro closures are fixed to the side of the connecting strip. The first Velcro closure and the first Velcro closure cooperate with each other. The first Velcro closure and the first Velcro closure are quickly attached and detached through the connecting strip. This is used to firmly bind the device to the limb, adapt to limbs of different thicknesses, ensure the airbag is fixed in position, and improve the hemostasis effect.
[0009] Furthermore, a second Velcro closure is fixed to the upper left end of the strip-shaped airbag, and a second Velcro closure is fixed to the lower right end of the strip-shaped airbag. The second Velcro closure and the second Velcro closure cooperate to provide additional fixing points for cross or overlap fixing devices, enhancing overall stability and preventing the airbag from shifting during movement. This is suitable for emergency rescue scenarios with a lot of movement.
[0010] Furthermore, a connecting tape is fixed to the middle of the lower side of the strip-shaped airbag, and centrifugal paper is adhered to the lower side of the connecting tape. The connecting tape is used to directly stick to the skin to provide a bottom layer fixation. The centrifugal paper protects the adhesiveness of the tape and is removed before use to ensure that the device is in close contact with the wound, reduce slippage, and improve comfort and hemostasis efficiency.
[0011] Furthermore, two corresponding sponge blocks are fixed to the lower side of the strip-shaped airbag, and the connecting tape is located between the two sponge blocks. The sponge blocks are placed on both sides of the connecting tape to buffer the pressure of the airbag on the skin, absorb sweat or blood, reduce skin irritation, improve patient comfort, and prevent the connecting tape from falling off prematurely.
[0012] Furthermore, the surface of the airbag is fixed with an anti-slip cover, and the circumferential surface of the anti-slip cover is provided with evenly distributed anti-slip grooves. The anti-slip cover increases the friction of the airbag surface through the anti-slip grooves, making it more stable for medical staff to hold in emergency situations, preventing slippage, and ensuring accurate and efficient inflation operation.
[0013] Furthermore, an anti-slip ring is fixed on the circumferential surface of the dial, a rubber sealing sheet is fixed at the lower end of the threaded post, and a groove is provided at the lower end of the internal threaded ring. The rubber sealing sheet is engaged inside the groove. The anti-slip ring facilitates the application of force when rotating the dial and prevents slippage. The rubber sealing sheet cooperates with the groove of the internal threaded ring to ensure a tight seal at the exhaust port, prevent gas leakage, and maintain stable pressure.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The disposable wound pressure hemostasis device for pre-hospital emergency care has the following advantages: 1. By integrating a pressure sensor, PLC controller and display into a closed-loop monitoring system, the pressure applied to the wound is quantified in real time. The system can continuously monitor the pressure value inside the strip-shaped airbag and feed the data back to the display, enabling operators to dynamically adjust and maintain the optimal hemostatic pressure threshold according to clinical needs. This effectively avoids hemostasis failure caused by insufficient pressure or nerve, blood vessel and soft tissue compression damage caused by excessive pressure, and significantly improves the safety and controllability of hemostasis operation. 2. By systematically integrating the strip-shaped airbag, inflation assembly, deflation assembly, multiple fixation mechanisms, and cushioning sponge blocks, the reinforced soft frame ensures the stability of the airbag after inflation, allowing for even pressure distribution on the wound surface. The combination of bottom medical tape and top Velcro straps can adapt to the contour differences of different anatomical sites, providing multi-directional restraint during patient transport and movement, effectively preventing device displacement, and ensuring the continuity and stability of the pressurization effect. 3. The inflation assembly uses a press-fit airbag with an anti-slip cover and a one-way valve, making operation intuitive and efficient; the deflation assembly achieves controllable pressure relief through a threaded knob to avoid sudden pressure drops; the fastening assembly uses a torsion spring to automatically lock the connecting hose. These designs reduce the complexity of operation, allowing non-professionals to quickly get started after brief instructions, shortening emergency response time and creating favorable conditions for subsequent professional medical intervention. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the front structure of the present invention; Figure 2 This is a schematic diagram of the sensing component structure of the present invention; Figure 3 This is a schematic diagram of the exhaust assembly structure of the present invention; Figure 4This is a schematic diagram of the fastening assembly structure of the present invention; Figure 5 This is a schematic diagram of the structure at the fixing block of the present invention; Figure 6 This is a schematic diagram of the centrifugal paper section of the present invention.
[0016] In the diagram: 1. Strip-shaped airbag, 2. Sensing component, 21. Fixing cover, 22. Connecting cover, 23. Battery, 24. PLC controller, 25. Display, 26. Pressure sensor, 3. Inflation component, 31. Connecting hose, 32. Pressing airbag, 33. Inlet pipe, 34. One-way valve, 4. Exhaust component, 41. Internal threaded ring, 42. Threaded post, 43. Actuating disc, 5. Fastening component, 51. Fixing block, 52. Rotating block, 53. Rotating shaft, 54. Connecting groove, 55. Torque spring, 56. Arc-shaped fastening plate, 57. Pull block, 6. Reinforced soft frame, 7. First Velcro closure, 8. Connecting strip, 9. First Velcro closure, 10. Second Velcro closure, 11. Second Velcro closure, 12. Sponge block, 13. Connecting tape, 14. Centrifugal paper, 15. Anti-slip cover, 16. Anti-slip ring, 17. Rubber sealing sheet. Detailed Implementation
[0017] 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.
[0018] Please see Figure 1-6 This embodiment provides a technical solution: a disposable wound pressure hemostasis device for pre-hospital emergency care, comprising a strip-shaped airbag 1 and a sensing component 2; Strip-shaped airbag 1: An evenly distributed reinforcing soft frame 6 is fixed inside. An inflation assembly 3 is installed on the side of the strip-shaped airbag 1. An exhaust assembly 4 and a fastening assembly 5 are installed on the upper side of the strip-shaped airbag 1. The inflation assembly 3 includes a connecting hose 31, a pressing airbag 32, an air inlet pipe 33, and a one-way valve 34. An inflation hole is opened on the front side of the strip-shaped airbag 1. The connecting hose 31 is fixed inside the inflation hole. The right end of the connecting hose 31 is fixed inside the air outlet of the pressing airbag 32. An air inlet is opened on the surface of the pressing airbag 32. An air inlet pipe 33 is fixed inside the air inlet. A one-way valve 34 is installed on the circumferential surface of the air inlet pipe 33. 4. The exhaust assembly 4 includes an internal threaded ring 41, a threaded post 42, and a toggle plate 43. An exhaust port is provided at the upper end of the strip-shaped airbag 1. An internal threaded ring 41 is fixed inside the exhaust port. A threaded post 42 is threadedly connected to the internal threaded ring 41. A toggle plate 43 is fixed at the upper end of the threaded post 42. The fastening assembly 5 includes a fixing block 51, a rotating block 52, a rotating shaft 53, a connecting groove 54, a torsion spring 55, an arc-shaped fastening plate 56, and a pull block 57. Two corresponding fixing blocks 51 are fixed to the upper side of the strip-shaped airbag 1. A rotating block 52 is provided between the two fixing blocks 51. A fixing hole is provided in the middle of the rotating block 52. A rotating shaft 53 is fixed inside the fixed hole. The rotating shaft 53 is rotatably connected between two fixed blocks 51. Two corresponding torsion springs 55 are sleeved on the circumferential surface of the rotating shaft 53. Grooves are provided on both the left and right sides of the rotating block 52. One end of the torsion spring 55 is fixed inside the groove, and the other end of the torsion spring 55 is fixed on the side of the corresponding fixed block 51. An arc-shaped fastening plate 56 is fixed to the rear side of the rotating block 52. The connecting hose 31 is located inside the arc-shaped fastening plate 56. A pull block 57 is fixed to the upper end of the surface of the arc-shaped fastening plate 56. The fastening assembly 5 uses the elastic force of the torsion springs 55 to press the arc-shaped fastening plate 56 tightly. The connecting hose 31 is designed to prevent it from coming loose or twisting during operation, ensuring a stable inflation process. The pull block 57 facilitates quick release of the connecting hose 31 for easy maintenance or replacement. The exhaust assembly 4 controls the opening and closing of the exhaust port by rotating the actuating disc 43 to move the threaded column 42 within the internal threaded ring 41, allowing for slow or rapid gas release. This facilitates pressure adjustment or release and prevents secondary injuries caused by sudden decompression. The inflation assembly 3 manually inflates the strip-shaped airbag 1 by pressing the airbag 32. The one-way valve 34 ensures that gas can only flow in one direction, preventing backflow and making the inflation process simple and fast, suitable for emergency situations in pre-hospital emergency care. Sensing component 2 includes a fixed cover 21, a connecting cover 22, a battery 23, a PLC controller 24, a display 25, and a pressure sensor 26. An opening is formed in the middle of the upper side of the strip-shaped airbag 1. The fixed cover 21 is fixed inside the opening, and the pressure sensor 26 is installed inside the fixed cover 21. The connecting cover 22 is fixed to the upper end of the fixed cover 21. The battery 23 and the PLC controller 24 are installed inside the connecting cover 22. A groove is formed on the upper side of the connecting cover 22, and the display 25 is installed inside the groove. The input terminal of the PLC controller 24 is electrically connected to the output terminal of the battery 23. The output of the PLC controller 24 is electrically connected to the input of the display 25. The PLC controller 24 is bidirectionally electrically connected to the pressure sensor 26. After the strip-shaped airbag 1 is inflated, it applies uniform pressure to the wound to promote hemostasis. The pressure sensor 26 in the sensing component 2 monitors the pressure value in real time and processes the data through the PLC controller 24, which is then displayed on the display 25. This allows medical personnel to accurately control the hemostasis pressure, avoid insufficient or excessive pressure, and improve the safety of emergency treatment. When the pressure is too high, the user can quickly release the pressure by disassembling the threaded column 42.
[0019] The strip-shaped airbag 1 has a first Velcro 7 fixed to the left end of both the front and rear sides, and a connecting strip 8 fixed to the right end of the upper side of the strip-shaped airbag 1. Two corresponding first Velcro 9 are fixed to the side of the connecting strip 8. The first Velcro 7 and the first Velcro 9 cooperate with each other. The first Velcro 7 and the first Velcro 9 can be quickly attached and detached through the connecting strip 8. This is used to firmly bind the device to the limb, adapt to limbs of different thicknesses, ensure the airbag position is fixed, and improve the hemostasis effect.
[0020] Specifically: a second Velcro 10 is fixed to the upper left end of the strip-shaped airbag 1, and a second Velcro 11 is fixed to the lower right end of the strip-shaped airbag 1. The second Velcro 10 and the second Velcro 11 cooperate with each other, and the second Velcro 10 and the second Velcro 11 provide additional fixing points for cross or overlap fixing devices, enhancing overall stability and preventing the airbag from shifting during movement. This is suitable for emergency rescue scenarios with a lot of movement.
[0021] Among them: a connecting tape 13 is fixed in the middle of the lower side of the strip-shaped airbag 1, and a centrifugal paper 14 is attached to the lower side of the connecting tape 13. The connecting tape 13 is used to directly stick to the skin to provide a bottom layer fixation. The centrifugal paper 14 protects the adhesiveness of the tape and is removed before use to ensure that the device is in close contact with the wound, reduce slippage, and improve comfort and hemostasis efficiency.
[0022] Among them: two corresponding sponge blocks 12 are fixed on the lower side of the strip-shaped airbag 1, and the connecting tape 13 is located between the two sponge blocks 12. The sponge blocks 12 are set on both sides of the connecting tape 13 to buffer the pressure of the airbag on the skin, absorb sweat or blood, reduce skin irritation, improve patient comfort, and prevent the connecting tape 13 from falling off prematurely.
[0023] Among them, the surface of the airbag 32 is fixed with an anti-slip cover 15. The anti-slip cover 15 has evenly distributed anti-slip grooves on its circumferential surface. The anti-slip cover 15 increases the friction of the surface of the airbag 32 through the anti-slip grooves, so that medical staff can hold it more firmly in emergency situations, prevent slipping, and ensure accurate and efficient inflation operation.
[0024] Specifically: an anti-slip ring 16 is fixed on the circumferential surface of the dial 43, a rubber sealing sheet 17 is fixed at the lower end of the threaded post 42, and a groove is provided at the lower end of the internal threaded ring 41. The rubber sealing sheet 17 is engaged inside the groove. The anti-slip ring 16 facilitates the application of force when rotating the dial 43 and prevents slippage. The rubber sealing sheet 17 cooperates with the groove of the internal threaded ring 41 to ensure a tight seal at the exhaust port, prevent gas leakage, and maintain stable pressure.
[0025] The working principle of the disposable wound pressure hemostasis device for pre-hospital emergency care provided by this invention is as follows: When the device is applied to a wound, firstly, remove the centrifugal paper 14 under the connecting tape 13, attach the lower side of the strip-shaped airbag 1 to the skin, and securely bind the device to the limb using the connecting cloth strip 8 through the cooperation of the first Velcro 7 and the first Velcro 9, and the cooperation of the second Velcro 10 and the second Velcro 11, adapting to limbs of different thicknesses and ensuring a fixed position; then, the operator holds and presses the anti-slip cover 15 on the surface of the airbag 32 to manually inflate it. The gas enters the connecting hose 31 through the air inlet pipe 33 and the one-way valve 34, and is then injected into the strip-shaped airbag 1. The one-way valve 34 prevents gas backflow, making the inflation process fast and reliable. At the same time, the fastening component 5 uses the elasticity of the torsion spring 55 to automatically press the arc-shaped fastening plate 56 against the connecting hose 31 to prevent it from loosening. The airbag 1 expands after inflation, and the evenly distributed reinforcing soft frame 6 inside maintains the stability of the airbag shape, applying uniform pressure to the wound to promote hemostasis. The pressure sensor 26 in the sensing component 2 monitors the pressure value in real time. The data is processed by the PLC controller 24 and displayed on the display 25, allowing the operator to accurately monitor the pressure and avoid insufficient or excessive pressure. If pressure adjustment is required, the actuating disc 43 of the exhaust component 4 can be rotated to move the threaded column 42 in the internal threaded ring 41, controlling the opening and closing of the exhaust port. The rubber sealing sheet 17 ensures a tight seal, and the gas can be released slowly or quickly for easy pressure adjustment. Throughout the process, the sponge block 12 cushions the pressure of the airbag on the skin, absorbs sweat or blood, and improves comfort. The connecting tape 13 provides bottom layer fixation, reduces slippage, and achieves a safe and efficient hemostasis effect.
[0026] It is worth noting that the PLC controller 24, battery 23, display 25 and pressure sensor 26 disclosed in the above embodiments can be freely configured according to the actual application scenario. The PLC controller 24 controls the operation of the display 25 and pressure sensor 26 using methods commonly used in the prior art.
[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A disposable wound pressure hemostasis device for pre-hospital emergency care, characterized in that: Includes a strip-shaped airbag (1) and a sensing component (2); Strip-shaped airbag (1): The interior is fixed with a uniformly distributed reinforcing soft frame (6), the side of the strip-shaped airbag (1) is equipped with an air injection component (3), and the upper side of the strip-shaped airbag (1) is equipped with an exhaust component (4) and a fastening component (5). Sensing component (2): includes a fixed cover (21), a connecting cover (22), a battery (23), a PLC controller (24), a display (25), and a pressure sensor (26). The upper middle part of the strip-shaped airbag (1) has an opening, and the fixed cover (21) is fixed inside the opening. The pressure sensor (26) is installed inside the fixed cover (21). The connecting cover (22) is fixed at the upper end of the fixed cover (21). The battery (23) and the PLC controller (24) are installed inside the connecting cover (22). The upper side of the connecting cover (22) has a groove, and the display (25) is installed inside the groove. The input end of the PLC controller (24) is electrically connected to the output end of the battery (23), and the output end of the PLC controller (24) is electrically connected to the input end of the display (25). The PLC controller (24) and the pressure sensor (26) are bidirectionally electrically connected.
2. The disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 1, characterized in that: The air injection assembly (3) includes a connecting hose (31), a press airbag (32), an air inlet pipe (33), and a one-way valve (34). The front side of the strip-shaped airbag (1) has an air injection hole. The connecting hose (31) is fixed inside the air injection hole. The right end of the connecting hose (31) is fixed inside the air outlet of the press airbag (32). The surface of the press airbag (32) has an air inlet. The air inlet pipe (33) is fixed inside the air inlet. A one-way valve (34) is installed on the circumferential surface of the air inlet pipe (33).
3. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 1, characterized in that: The exhaust assembly (4) includes an internal threaded ring (41), a threaded post (42) and a dial (43). The upper end of the strip-shaped airbag (1) is provided with an exhaust port. The internal threaded ring (41) is fixed inside the exhaust port. The threaded post (42) is connected to the internal threaded ring (41). The upper end of the threaded post (42) is fixed with a dial (43).
4. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 2, characterized in that: The fastening assembly (5) includes a fixing block (51), a rotating block (52), a rotating shaft (53), a connecting groove (54), a torsion spring (55), an arc-shaped fastening plate (56), and a pull block (57). Two corresponding fixing blocks (51) are fixed to the upper side of the strip-shaped airbag (1). A rotating block (52) is disposed between the two fixing blocks (51). A fixing hole is opened in the middle of the rotating block (52), and a rotating shaft (53) is fixed inside the fixing hole. The rotating shaft (53) is rotatably connected between the two fixing blocks (51). Two corresponding torsion springs (55) are fitted on the circumferential surface of the rotating shaft (53). Grooves are provided on both the left and right sides of the rotating block (52). One end of the torsion spring (55) is fixed inside the groove, and the other end of the torsion spring (55) is fixed on the side of the corresponding fixing block (51). An arc-shaped fastening plate (56) is fixed on the rear side of the rotating block (52). The connecting hose (31) is located inside the arc-shaped fastening plate (56). A pull block (57) is fixed on the upper end of the surface of the arc-shaped fastening plate (56).
5. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 1, characterized in that: The left ends of both the front and rear sides of the strip-shaped airbag (1) are fixed with first Velcro (7), and the right end of the upper side of the strip-shaped airbag (1) is fixed with a connecting strip (8). The side of the connecting strip (8) is fixed with two corresponding first Velcro (9), and the first Velcro (7) and the first Velcro (9) cooperate with each other.
6. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 1, characterized in that: The upper left end of the strip-shaped airbag (1) is fixed with a second Velcro closure (10), and the lower right end of the strip-shaped airbag (1) is fixed with a second Velcro closure (11). The second Velcro closure (10) and the second Velcro closure (11) cooperate with each other.
7. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 1, characterized in that: A connecting tape (13) is fixed to the middle of the lower side of the strip-shaped airbag (1), and centrifugal paper (14) is adhered to the lower side of the connecting tape (13).
8. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 7, characterized in that: Two corresponding sponge blocks (12) are fixed on the lower side of the strip-shaped airbag (1), and the connecting tape (13) is located between the two sponge blocks (12).
9. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 2, characterized in that: The surface of the pressing airbag (32) is fixed with an anti-slip cover (15), and the anti-slip cover (15) has uniformly distributed anti-slip grooves on its circumferential surface.
10. A disposable wound pressure hemostasis device for pre-hospital emergency care according to claim 3, characterized in that: An anti-slip ring (16) is fixed on the circumferential surface of the dial (43), and a rubber sealing sheet (17) is fixed at the lower end of the threaded column (42). A groove is provided at the lower end of the internal threaded ring (41), and the rubber sealing sheet (17) is engaged inside the groove.