Emergency care limb trauma hemostasis device

Abstract

The invention relates to an emergency care limb wound hemostasis device, and belongs to the technical field of medical equipment. The cotton swab disinfection device comprises a supporting frame, and the supporting frame is internally provided with a disinfection mechanism located on the front side of the supporting frame and used for storing disinfectant and infiltrating cotton swabs; the cotton swab clamping and replacing mechanism is located on the rear side of the supporting frame and used for clamping cotton swabs and automatically replacing the cotton swabs; the cotton swab driving mechanism is in transmission connection with the disinfection mechanism and the cotton swab clamping and replacing mechanism, and is used for enabling the disinfectant to infiltrate the cotton swab and driving the cotton swab to wipe and disinfect the limb wound surface in a reciprocating manner; the pressurization hemostasis mechanism is arranged on the side, facing the limbs, of the supporting frame, located between the disinfection mechanism and the cotton swab clamping and replacing mechanism and used for conducting pressurization hemostasis on the disinfected wound surface. According to the device, the whole disinfection and hemostasis process is continuously completed in the same integrated device, emergency personnel do not need to frequently replace tools or carry out multi-step independent operation, the emergency process is simplified, and the treatment efficiency of limb trauma is improved.

Description

Technical Field

[0001] This invention relates to an emergency care device for stopping bleeding in limb injuries, belonging to the field of medical equipment technology. Background Technology

[0002] In current clinical and pre-hospital emergency care, the treatment of limb trauma bleeding generally adopts a separate operation procedure. That is, medical staff first use sterile cotton swabs and iodine cotton balls to wipe and disinfect the wound, and then use tourniquets, pressure bandages or inflatable hemostatic devices to apply pressure to the proximal end of the limb or the wound area to stop the bleeding. Disinfection, cleaning and pressure bandaging are independent steps, without an integrated structure.

[0003] Commonly used hemostatic devices are represented by mechanical tourniquets, spin tourniquets, and simple inflatable tourniquets. They have limited functions, only providing pressure hemostasis and cannot disinfect or clean the wound with hemostatic forceps. The disinfection process relies on separate consumables such as cotton swabs, disinfectant solutions, and disinfectant cotton pads, and requires manual hand operation. They lack automatic dispensing, automatic wiping, and automatic rod changing functions, making the operation cumbersome and inefficient. Summary of the Invention

[0004] This application provides an emergency care device for stopping bleeding from limb trauma, which aims to improve the efficiency of treating bleeding from limb trauma.

[0005] An emergency care device for stopping bleeding in limb trauma includes a support frame, wherein the support frame contains: The disinfection mechanism, located on the front side of the support frame, is used to store disinfectant and soak cotton swabs; The cotton swab clamping and changing mechanism is located on the rear side of the support frame and is used to clamp the cotton swabs and automatically change them. The cotton swab driving mechanism is connected to the disinfection mechanism and the cotton swab clamping and changing mechanism, and is used to wet the cotton swab with disinfectant and drive the cotton swab to repeatedly wipe and disinfect the limb wound. The pressure hemostasis mechanism is located on the side of the support frame facing the limb and between the disinfection mechanism and the cotton swab clamping and changing mechanism, and is used to apply pressure to stop bleeding on the disinfected wound.

[0006] Through the above technical solution, the cotton swab driving mechanism drives the disinfectant in the disinfection mechanism to soak the cotton swab, and then the cotton swab soaked in disinfectant wipes the wound on the patient's limb. After that, the cotton swab driving mechanism drives the cotton swab clamping and replacement mechanism to automatically replace the used cotton swab, waiting for the next disinfection operation. After the wound is disinfected, the pressure hemostasis device compresses the wound to achieve rapid hemostasis. The entire disinfection and hemostasis process is completed continuously in the same integrated device, eliminating the need for emergency personnel to frequently change tools or perform multiple independent operations, simplifying the emergency procedure and improving the efficiency of limb trauma treatment.

[0007] In some embodiments, the cotton swab clamping and changing mechanism includes: The traction component penetrates the side wall of the support frame in the front-to-back direction and is slidably connected to the groove wall of the support frame; The clamping block is fixedly connected to the traction member and slides back and forth along the inner wall of the support frame, and has a clamping groove for clamping the cotton swab. A cotton swab storage compartment is located above the clamping block, and its bottom is connected to the clamping groove of the clamping block. It is used to store multiple cotton swabs for use. The switch assembly is connected to the clamping block to control the opening and closing of the bottom of the cotton swab storage compartment and the bottom of the clamping slot, so as to realize the automatic dropping and replacement of cotton swabs.

[0008] The above technical solution enables automatic supply, clamping, and replacement of cotton swabs. When a cotton swab needs to be replaced, the traction component is manually pulled backward. When the clamping block moves to the preset position, the switch component is triggered, the bottom of the clamping slot opens, and the used cotton swab is released. Continuing to pull the traction component backward opens the bottom of the cotton swab storage compartment, and a ready-to-use cotton swab falls into the clamping slot under gravity. Through this linkage mechanism, the cotton swab clamping and replacement mechanism can ensure that only one cotton swab is supplied at a time and accurately delivered to the clamping position. This solves the tediousness and inconvenience of manually replacing cotton swabs, as well as the problems of jamming or multiple cotton swabs falling at the same time that may occur in traditional automatic replacement mechanisms, ensuring the continuity and efficiency of the disinfection process.

[0009] In some embodiments, the switching assembly includes: The first baffle is rotatably connected to the bottom opening of the cotton swab storage compartment and connected to the clamping block, and is used to open or close the bottom of the cotton swab storage compartment synchronously with the movement of the clamping block. A sliding block is slidably connected to the clamping block; The second baffle is slidably connected to the bottom of the clamping block; The rotating rod is hinged to the sliding block and the second baffle, which drives the second baffle to open or close the bottom opening of the clamping groove.

[0010] With the above technical solution, when the clamping block of the cotton swab clamping and changing mechanism moves to the preset position, the sliding block slides on the clamping block. Its sliding motion is transmitted to the second baffle through the rotating rod and drives the second baffle to open. The old cotton swab falls from the clamping slot. The traction component continues to be pulled, and the clamping block drives the first baffle to rotate synchronously, thereby opening the bottom opening of the cotton swab storage compartment. An unused cotton swab falls into the clamping slot of the clamping block, which is convenient for secondary wiping after the wound. This linkage mechanism ensures that the cotton swab falls accurately and is released in a timely and effective manner, avoiding the problem of multiple cotton swabs falling at the same time or the cotton swabs not being released smoothly. It greatly improves the automation and reliability of cotton swab changing and ensures the continuity and effectiveness of the process of disinfecting limb wounds.

[0011] In some embodiments, the cotton swab clamping and changing mechanism is symmetrically arranged on the left and right sides of the support frame, and the cotton swab is arranged between the cotton swab clamping and changing mechanism.

[0012] In some embodiments, the cotton swab driving mechanism includes: A drive block is slidably disposed at the front end of the support frame and is connected to the clamping block in a transmission manner. The linkage assembly is hinged at one end to the drive block and slidably connected to the support frame at the other end, and is also connected to the disinfection mechanism via transmission. A reset component is located between the drive block and the support frame, and is used to drive the drive block to reset.

[0013] The above technical solution involves sliding the drive block at the front end of the support frame and connecting it to the clamping block. One end of the connecting rod assembly is hinged to the drive block, and the other end is slidably connected to the support frame and connected to the disinfection mechanism. This allows the movement of the drive block to be synchronously transmitted to the disinfection mechanism, achieving coordinated movement between the cotton swab and the disinfection mechanism. A reset assembly is located between the drive block and the support frame. After the drive block completes one stroke, the reset assembly provides a restoring force, automatically pushing the drive block back to its initial position. This automatically resets the entire cotton swab drive mechanism, preparing it for the next disinfection operation.

[0014] In some embodiments, the disinfection mechanism includes: A liquid storage tank is detachably mounted on top of the support frame; The needle assembly is rotatably connected within the support frame and is drivenly connected to the linkage assembly. It is used to rotate and puncture the liquid storage tank when the linkage assembly moves, so that the disinfectant flows out.

[0015] Through the above technical solution, when the cotton swab drive mechanism is activated, driving the linkage assembly to move, the movement of the linkage assembly is precisely transmitted to the needle assembly, causing it to rotate. During this rotation, the needle on the needle assembly accurately punctures the sealed portion of the reservoir above it, allowing the disinfectant to flow out. The outflowing disinfectant then soaks the cotton swab provided by the cotton swab clamping and changing mechanism, preparing it for subsequent wound disinfection. This design ensures that the release of the disinfectant is closely synchronized with the disinfection action of the cotton swab, guaranteeing that the disinfectant is released only when needed, avoiding unnecessary waste and premature leakage. Simultaneously, the detachable reservoir design greatly simplifies the process of replenishing and replacing the disinfectant, improving the practicality and ease of maintenance of the device.

[0016] In some embodiments, a clamping assembly is further included, the clamping assembly comprising: The first clamping member is hinged to the connecting rod assembly and is used to swing with the movement of the connecting rod assembly; The second clamping member is symmetrically arranged with the first clamping member and rotatably connected to it, and is used to cooperate with the first clamping member to clamp or release the cotton swab.

[0017] Through the above technical solution, the first clamping member is hinged to the connecting rod assembly in the cotton swab driving mechanism. This allows the movement of the connecting rod assembly, i.e., the movement that drives the cotton swab to wipe, to synchronously drive the first clamping member to swing. Since the second clamping member is symmetrically arranged with the first clamping member and rotates relative to it, the swinging of the first clamping member will coordinately drive the second clamping member to move accordingly, thereby realizing the opening and closing action of the two clamping members, and thus completing the clamping or releasing of the cotton swab. In the initial state, the clamping assembly is closed, and the cotton swab is located within the first and second clamping members, which facilitates the positioning of the cotton swab and allows the disinfectant to accurately wet the cotton swab. When the cotton swab driving mechanism drives the cotton swab to wipe and disinfect through the connecting rod assembly, the clamping assembly is in the open state, which facilitates the disinfection of the wound by the wetted cotton swab.

[0018] In some embodiments, the pressure hemostasis mechanism includes: An airbag, located on the side of the support frame facing the limb, is used to inflate the airbag and fit against the surface of the limb. A gauze layer, removably wrapped around the outer surface of the airbag, is used to adhere tightly to the wound as the airbag inflates to achieve pressure hemostasis.

[0019] Using the above technical solution, after the limb wound has been disinfected by the disinfection mechanism and the cotton swab driving mechanism, the pressure hemostasis mechanism begins to work. The airbag is located on the side of the support frame facing the limb. When inflated by the air pump, the airbag expands and conforms to the limb surface, thereby applying uniform pressure to the wound. Simultaneously, a gauze layer is detachably wrapped around the outer surface of the airbag. When the airbag inflates, the gauze layer adheres tightly to the wound, directly contacting it. This not only absorbs wound exudate but also provides a clean hemostatic environment. This structural design ensures that the pressure hemostasis process guarantees both uniform and effective pressure while meeting hygiene requirements, and facilitates subsequent replacement or treatment of the gauze layer, thus significantly improving the efficiency and effectiveness of emergency care.

[0020] In some embodiments, it also includes: Straps are attached to the front, back, left, and right outer walls of the support frame to secure the device to the injured limb. The telescopic block is telescopically connected to the support frame and is used to adjust the fit between the support frame and the limb.

[0021] Through the above technical solution, when the device is placed on the injured limb, the bandage is tightened and fixed, thereby firmly binding the entire device to the limb and preventing displacement during use. Furthermore, the telescopic block is telescopically connected to the support frame, improving the fit between the support frame and the limb surface, ensuring that the pressure hemostasis mechanism can act evenly and effectively on the wound, while also ensuring that the cotton swab driving mechanism can stably contact the wound during disinfection. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure in the initial state of an embodiment of this application.

[0023] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle.

[0024] Figure 3 This is a schematic diagram of the clamping block in an embodiment of this application.

[0025] Figure 4 This is a cross-sectional view of the cotton swab driving mechanism in its initial state according to an embodiment of this application.

[0026] Figure 5 This is a cross-sectional view of the clamping assembly in its initial state according to an embodiment of this application.

[0027] Figure 6 for Figure 5 Enlarged diagram of part B.

[0028] Figure 7 for Figure 5 An enlarged schematic diagram of section C.

[0029] Figure 8 This is a schematic diagram of the linkage assembly in an embodiment of this application.

[0030] Figure 9 This is a schematic diagram of the support frame of this application.

[0031] Figure 10 This is a cross-sectional view of the needle penetrating the liquid storage tank according to an embodiment of this application.

[0032] Figure 11 This is a cross-sectional view of the clamping assembly when the needle pierces the liquid storage tank according to an embodiment of this application.

[0033] Figure 12 This is a schematic diagram of the structure of the reset block in an embodiment of this application.

[0034] Figure 13 This is a cross-sectional view after disinfection in an embodiment of this application.

[0035] Figure 14 for Figure 13 An enlarged schematic diagram of part D in the middle.

[0036] Figure 15 for Figure 13 An enlarged schematic diagram of section E in the middle.

[0037] Figure 16 This is a schematic diagram of the cotton swab clamping and changing mechanism in an embodiment of this application for changing cotton swabs.

[0038] The labels in the attached diagram are as follows: 1. Support frame; 11. Third baffle; 12. Third gear; 13. Fourth gear; 15. Positioning plate; 16. Clamping block sliding groove; 2. Disinfection mechanism; 21. Liquid storage tank; 22. Needle assembly; 221. First connecting rod; 222. Needle slider; 223. Fourth elastic element; 224. Needle; 3. Cotton swab clamping and changing mechanism; 31. Traction element; 311. Pull rod; 32. Clamping block; 321. Clamping groove; 322. First component; 323. Second component; 324. First transmission block; 325. Push rod; 33. Cotton swab storage tank; 331. Storage plate; 34. Switch assembly; 341. First baffle; 342. Sliding block; 343. Second baffle; 344. Rotation. 345. Rod; 35. First elastic element; 36. Telescopic rod; 37. Slider; 38. Second elastic element; 4. Cotton swab driving mechanism; 41. Driving block; 411. Second rack; 42. Linkage assembly; 421. Second link; 422. Third link; 43. Reset assembly; 431. Third elastic element; 432. Reset block; 4321. First rack; 433. First gear; 434. Second gear; 5. Pressure hemostasis mechanism; 51. Airbag; 52. Gauze layer; 6. Clamping assembly; 61. First clamping element; 62. Second clamping element; 621. Connecting part; 622. Clamping part; 623. Fifth elastic element; 63. Third gear; 64. Fourth gear; 7. Bandage; 8. Telescopic block; 9. Cotton swab. Detailed Implementation

[0039] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] When describing positional relationships, unless otherwise specified, when an element, such as a layer, film, or substrate, is referred to as being "on" another element, it may be directly on the other element or there may be intermediate elements present. Furthermore, when a layer is referred to as being "below" another layer, it may be directly below it or there may be one or more intermediate elements present. It is also understood that when a layer is referred to as being "between" two layers, it may be the only layer between the two layers, or there may be one or more intermediate elements present.

[0042] When using the terms “including,” “having,” and “comprising” as described herein, another component may be added unless explicitly qualifying terms such as “only,” “consisting of,” etc. are used. Unless otherwise stated, singular terms may include plural forms and should not be construed as having a quantity of one.

[0043] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0044] It should also be understood that, in interpreting an element, although not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of a particular value as determined by a person skilled in the art. For example, "approximately," "about," or "substantially" can mean within one or more standard deviations, without limitation herein.

[0045] Furthermore, in the instruction manual, the phrase "planar distribution diagram" refers to the diagram when the target part is viewed from above, and the phrase "cross-sectional diagram" refers to the diagram when the target part is viewed from the side as a cross-section taken by vertically cutting the target part.

[0046] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0047] This invention provides an emergency care device for stopping bleeding in limb trauma, which can reduce sample contamination, avoid multiple sampling operations, and reduce the risk of tumor cancer cell spread.

[0048] like Figure 1-16As shown, an embodiment of this application provides an emergency limb wound hemostasis device, including a support frame 1. The support frame 1 houses a disinfection mechanism 2, a cotton swab clamping and changing mechanism 3, a cotton swab driving mechanism 4, and a pressure hemostasis mechanism 5. The disinfection mechanism 2 is located at the front of the support frame 1 and is used to store disinfectant and soak cotton swabs 9. The cotton swab clamping and changing mechanism 3 is located at the rear of the support frame 1 and is used to clamp cotton swabs 9 and automatically change them. The cotton swab driving mechanism 4 is connected to both the disinfection mechanism 2 and the cotton swab clamping and changing mechanism 3, and is used to manually soak cotton swabs 9 with disinfectant and drive them to repeatedly wipe and disinfect the limb wound. The pressure hemostasis mechanism 5 is located on the side of the support frame 1 facing the limb and between the disinfection mechanism 2 and the cotton swab clamping and changing mechanism 3, and is used to apply pressure to the disinfected wound for hemostasis. This embodiment integrates four major functions—disinfection, automatic cotton swab replacement, drive, and pressure hemostasis—into one unit, solving the problems of functional separation and cumbersome operation in the prior art. When using it, you only need to attach the device to the limb wound and manually operate it to complete the limb wound disinfection and cotton swab replacement. Finally, the pressure hemostasis mechanism achieves hemostasis. The operation is simple and the emergency rescue efficiency is high.

[0049] Two sets of cotton swab clamping and changing mechanisms 3 are provided, located on the left and right sides of the support frame 1 respectively. The cotton swab clamping and changing mechanism 3 includes a traction member 31, a clamping block 32, a cotton swab storage compartment 33, and a switch assembly 34. The traction member 31 passes through the side wall of the support frame 1 in the front-back direction and is slidably connected to the groove wall of the support frame 1. The traction member 31 is a pull rope, which is convenient for the operator to pull manually. The part of the traction member 31 at the top of the device is provided with a pull rod 311. The pull rod 311 extends in the left-right direction of the support frame 1 and is fixedly connected to the traction member 31. The pull rod 311 is set in the left-right direction and is fixedly connected to the two traction members 31. Two positioning plates 15 are respectively provided at the front and rear ends of the top of the support frame 11. A limiting groove is formed between the two positioning plates 15 to limit the front-back movement of the pull rod 311. The position between the two positioning plates 15 at the rear end is the initial position of the device, and the position between the two positioning plates 15 at the front end is the changing position of the device.

[0050] The traction member 31 passes through the clamping block 31 in the front-to-back direction and is fixedly connected to the clamping block 32. The inner sides of the left and right side walls of the support frame 1 are provided with clamping block sliding grooves 16 in the front-to-back direction for the clamping block 31 to slide back and forth. The openings of the two clamping block sliding grooves 16 are arranged opposite to each other. The clamping block 32 can slide back and forth along the left side and inner side walls of the support frame 1. When the operator pulls the lever 311, the two traction members 31 on both sides can move back and forth simultaneously, thereby driving the clamping block 32 to slide along the front-to-back direction of the support frame 1. The clamping block 32 is provided with a clamping groove 321 for clamping the cotton swab 9. The clamping groove 321 is a vertical through-hole. The openings of the two clamping slots 321 are arranged opposite each other. The cotton swab storage compartment 33 is located above the clamping block 32, and its bottom is connected to the clamping slot 321 of the clamping block 32. The cotton swab storage compartment 33 consists of two vertically arranged storage plates 331. The storage plates 331 are fixedly connected to the inner walls of the left and right sides of the support frame 1 and are used to store multiple cotton swabs 9 to be used. The top of the front storage plate 331 is lower than the top of the rear storage plate 331, which makes it easy to put the cotton swabs 9 to be used between the two storage plates 331. The end of the cotton swab 9 to be used is located between the two storage plates 331. In this embodiment, the entire shaft of the cotton swab 9 is wrapped with medical absorbent cotton. The switch assembly 34 is drivenly connected to the clamping block 32 and is used to control the opening and closing of the bottom of the cotton swab storage compartment 33 and the bottom of the clamping slot 321 to realize the automatic dropping and replacement of the cotton swabs 9.

[0051] The switch assembly 34 includes a first baffle 341, a sliding block 342, a second baffle 343, and a rotating rod 344. The first baffle 341 is rotatably connected to the bottom opening of the cotton swab storage compartment 33 and is connected to the clamping block 32, used to synchronously open or close the bottom of the cotton swab storage compartment 33 as the clamping block 32 moves. The sliding block 342 is slidably connected to the clamping block 32, and the bottom of the through groove of the clamping block 32 has a sliding groove along the front-back direction for the sliding block 342 to slide. The second baffle 343 is slidably connected to the bottom of the clamping block 32. The rotating rod 344 is hinged to the sliding block 342 and the second baffle 343, used to drive the second baffle 343 to open or close the bottom opening of the clamping groove 321.

[0052] A third baffle 11 is fixedly connected to the rear side of the support frame 1. When one disinfection cycle ends, the rear end of the sliding block 342 abuts against the front side of the third baffle 11. At this time, the first baffle 341 and the second baffle 343 are in a closed state. The sliding block 342 is a 7-shaped slider. The sliding block 342 divides the rear side wall of the clamping block 32 into an upper first part 322 and a lower second part 323. The second part 323 is set as a cavity. The rotating rod 344 is rotatably connected to the cavity of the second part 323 in the left and right direction. One end of the rod is hinged to the sliding block 342. One end is hinged to the second baffle 343. The rotating rod 344 tilts to the left and continues to pull the traction member 31 backward, causing the clamping block 32 to move backward. The sliding block 342 is limited by the third baffle 11 and slides forward relative to the clamping block 32. A first elastic member 345 is provided between the sliding block 342 and the clamping block. The sliding block 342 is horizontally inserted into the clamping groove 321. The first elastic member 345 is compressed, causing the rotating rod 344 to rotate clockwise around the fulcrum. The second baffle 343 slides to the right, thereby opening the bottom opening of the clamping groove 321, and the used cotton swab 9 falls out.

[0053] The bottom side of the first baffle 341 is hinged with an opening assembly, which includes a telescopic rod 35, a slider 36, and a second elastic element 37. The slider 36 is slidably connected to the support frame 1 in the front-back direction. The second elastic element 37 is located between the slider 36 and the support frame 1 in the front-back direction. The telescopic rod 35 is vertically mounted on the top of the slider 36. The top end of the telescopic rod is hinged to the bottom of the first baffle 341, and the bottom end is fixedly connected to the slider 36. When the traction member 31 is pulled backward, the clamping block 32 moves backward to its limit position. The first transmission block 3 on the rear side of the clamping block 32... 24. Pressing the slider 36 backward, the second elastic element 37 is compressed. At the same time, the slider 36 moves backward, causing the telescopic rod 35 to be compressed downward, so as to drive the first baffle 341 to rotate downward. The unused cotton swab 9 falls into the clamping groove 321 and abuts against the top side of the sliding block 342, restoring the traction element 31 to the second position. The pull rod 311 is engaged with the second position. The second elastic element 37 and the first elastic element 345 return to the free state. The first baffle 341 and the second baffle 343 close to prevent the cotton swab 9 from falling, thereby realizing the automatic replacement of the cotton swab.

[0054] The cotton swab driving mechanism 4 includes a driving block 41, a connecting rod assembly 42, and a reset assembly 43. The driving block 41 is slidably disposed at the front end of the support frame 1 and is drive-connected to the front end of the clamping block 32. One end of the connecting rod assembly 42 is hinged to the driving block 41, and the other end is slidably connected to the support frame 1 and drive-connected to the disinfection mechanism 2. The reset assembly 43 is located between the driving block 41 and the support frame 1 and is used to drive the driving block 41 to reset.

[0055] The reset assembly 43 includes a third elastic element 431, a reset block 432, a first gear 433, and a second gear 434. The bottom of the reset block 432 is provided with a first rack 4321 that meshes with the first gear 433. The bottom of the drive block 41 is provided with a second rack 411 that meshes with the second gear 434. The second gear 434 is coaxially fixed with the first gear 433. The number of teeth of the second gear 434 is less than the number of teeth of the first gear 433, and the diameter is larger than that of the first gear 433. The reset stroke is amplified by the gear ratio differential. The third elastic element 431 is located between the support frame 1 and the front end of the reset block 432.

[0056] In the initial state, the reset block 432 and the drive block 41 are at their front limit positions, the third elastic element 431 is in a compressed state, the front end of the clamping block 32 abuts against the rear end of the reset block 432, and the cotton swab 9 is initially in the clamping assembly 6. Pulling the traction element 31 forward causes the traction element 31 to move backward, which in turn causes the clamping block 32 to move backward. The third elastic element 431 returns to a free state from the compressed state and causes the reset block 432 to move backward synchronously. During the backward movement of the reset block 432, the first rack 4321 drives the first gear 433 to rotate clockwise, the first gear 433 drives the second gear 434 to rotate clockwise synchronously, and the drive block 41 drives the connecting rod assembly 42 to move backward, thereby pressing against the disinfection mechanism 2.

[0057] The disinfection mechanism 2 includes a liquid storage tank 21 and a needle assembly 22. The liquid storage tank 21 is detachably mounted on top of the support frame 1 for easy replacement of the disinfectant. In this embodiment, the liquid storage tank 21 is made of medical-grade silicone, with an aluminum foil seal on the rear side and the top attached to the inner top of the support frame 1 for easy replacement by the operator. The needle assembly 22 includes a first connecting rod 221, a needle-piercing slider 222, a fourth elastic element 223, and a needle 224, all rotatably connected within the support frame 1. One end of the first connecting rod 221 is fixedly connected to the needle-piercing slider 222, and the other end is connected to the needle 224. The first connecting rod 221 is horizontally positioned in the middle and rotatably connected to the top of the support frame 1. The fourth elastic element 223 is located between the needle-piercing slider 222 and the support frame 1. When the connecting rod assembly 42 presses against the needle-piercing slider 222, the first connecting rod 221 rotates and drives the needle 224 to pierce the aluminum foil of the liquid storage tank 21, causing the disinfectant to flow out and soak the cotton swab 9.

[0058] This embodiment also includes a clamping assembly 6, which includes a first clamping member 61 and a second clamping member 62. The first clamping member 61 is hinged to the connecting rod assembly 42 and is used to swing with the movement of the connecting rod assembly 42. The second clamping member 62 is symmetrically arranged with the first clamping member 61 and is connected by a third gear 63 and a fourth gear 64. The first clamping member 61 and the second clamping member 62 have the same structure. The rotating shaft of the third gear 63 is rotatably connected to the first clamping member 61 and the support frame 1. Therefore, during the rotation of the third gear 63, the first clamping member 61 remains stationary. The rotating shaft of the fourth gear 64 is fixedly connected to the second clamping member 62 and rotatably connected to the support frame 1. The second clamping member 62 cooperates with the first clamping member 61 to clamp or release the cotton swab 9. The second clamping member 62 includes a connecting part 621 and a clamping part 622. The clamping part 622 and the connecting part 621 are telescopically connected through a fifth elastic member 623. The two ends of the clamping part 622 are rotatably connected to the connecting rod assembly 42. In this embodiment, the elastic members are all compression springs.

[0059] Linkage assembly 42 includes a second link 421 and a third link 422. One end of the second link 421 is hinged to the drive block 41, and the other end is hinged to the third link 422. The pivot of the second link 421 and the third link 422 slides along the link groove 17 formed on the inner wall of the support frame 1. The needle-punched slider 222 is slidably connected to the top of the link groove 17. The other end of the third link 422 is rotatably connected to the clamping part 622. When the drive block 41 moves backward, the second link 421 drives the third link 422 to swing, thereby driving the first clamping member 61 to rotate counterclockwise around the hinge point, and the first clamping member 61 opens. Meanwhile, the first clamping member 61 drives the second clamping member 62 to rotate clockwise synchronously through the third gear 12 and the fourth gear 13, increasing the angle between them to facilitate the release of the current cotton swab 9. At this time, the traction member 31 is continuously pulled to move the clamping block 32 backward, and the cotton swab with disinfectant is used to clean and disinfect the wound of the patient's limb. A new cotton swab is then replaced. The traction member 31 is pulled in the opposite direction to move the clamping block 32 to move the new cotton swab 9 forward to the clamping component 6. The disinfectant is used to soak the cotton swab 9 again. The above operation is repeated to perform a second disinfection treatment on the patient's wound. Then, the above operation is repeated again to dry the wound with a dry cotton swab.

[0060] The pressure hemostasis mechanism 5 includes an air bladder 51 and a gauze layer 52. The air bladder 51 is located on the side of the support frame 1 facing the limb. It is inflated by an air pump (not shown) and then pressed against the limb surface. The air pump is mounted on the support frame 1, and the air bladder 512 is located at the air outlet of the air pump. The gauze layer 52 is detachably wrapped around the outer surface of the air bladder 51, and is used to press against the wound surface as the air bladder 51 inflates to achieve pressure hemostasis. The gauze layer 52 is replaceable for easy cleaning and disinfection, avoiding cross-infection. The air pump can be manual or electric, used to control the inflation pressure of the air bladder 51 to achieve precise pressure on the wound surface. After the wound is dried, the air pump is activated to inflate the air bladder 51, causing the gauze 52 to press firmly against the wound surface to achieve pressure hemostasis. The operator can flexibly control the pressure according to the bleeding situation to avoid excessive pressure causing tissue damage or insufficient pressure leading to hemostasis failure.

[0061] Straps 7 are connected to the front, back, left, and right outer walls of the support frame 1 to secure the device to the injured limb. The operator can change the position of the straps 7 as needed to ensure that the device does not shift during use. Telescopic blocks 8 are vertically inserted into the bottom of the left and right side walls of the support frame 1 and are connected vertically via springs. These blocks are used to adjust the fit between the support frame 1 and the limb according to its thickness, improving the device's adaptability and stability. Cotton swab clamping and changing mechanisms 3 are symmetrically arranged on the left and right sides of the support frame 1, with cotton swabs 9 positioned between them.

[0062] Working principle: After the operator secures the device to the injured limb with the strap 7, they adjust the telescopic block 8 to ensure the support frame 1 fits tightly against the skin. With the pull rod 311 in the initial position, the operator pulls the traction component 31 forward, causing the clamping block 32 to slide backward. The drive block 41 drives the connecting rod assembly 42 to move, which in turn drives the puncture needle assembly 22 to puncture the fluid reservoir 21. Disinfectant flows out and soaks the cotton swab 9. Simultaneously, the clamping block 32 moves the cotton swab 9 backward to wipe the wound. The operator continues to pull the traction component 31. The switch assembly 34 causes the old cotton swab to fall off and the new cotton swab to enter the clamping groove. Then, the pull rod 311 is fixed in the replacement position to complete the positioning of the new cotton swab. Pull the traction component 31 in the opposite direction to the clamping assembly 3. The second cotton swab 9 is soaked in disinfectant to disinfect the wound a second time. Finally, the above operation is repeated to dry the wound with the dry cotton swab 9. The pressure hemostasis mechanism 5 is activated to apply pressure to stop the bleeding of the wound. The whole process can be operated with only one hand. Pulling the traction component 31 can complete the closed loop of disinfection, drying and hemostasis.

[0063] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An emergency care device for stopping bleeding in limb trauma, comprising a support frame (1), characterized in that, The support frame (1) is provided with: The disinfection mechanism (2) is located in front of the support frame (1) and is used to store disinfectant and soak cotton swabs (9). The cotton swab clamping and changing mechanism (3) is located on the rear side of the support frame (1) and is used to clamp the cotton swab (9) and automatically change the cotton swab (9); The cotton swab driving mechanism (4) is connected to the disinfection mechanism (2) and the cotton swab clamping and changing mechanism (3) for making the disinfectant soak the cotton swab (9) and driving the cotton swab (9) to wipe and disinfect the limb wound repeatedly; The pressure hemostasis mechanism (5) is located on the side of the support frame (1) facing the limb and between the disinfection mechanism (2) and the cotton swab clamping and changing mechanism (3), and is used to apply pressure to stop the hemostasis of the disinfected wound.

2. The emergency care device for stopping bleeding in limb trauma according to claim 1, characterized in that, The cotton swab clamping and changing mechanism (3) includes: The traction component (31) passes through the side wall of the support frame (1) in the front-back direction and is slidably connected to the groove wall of the support frame (1); The clamping block (32) is fixedly connected to the traction member (31) and slides back and forth along the inner wall of the support frame (1), and has a clamping groove (321) for clamping the cotton swab (9). The cotton swab storage compartment (33) is located above the clamping block (32) and its bottom is connected to the clamping groove (321) of the clamping block (32), and is used to store multiple cotton swabs (9) to be used. The switch assembly (34) is connected to the clamping block (32) to control the opening and closing of the bottom of the cotton swab storage compartment (33) and the bottom of the clamping groove (321) so as to realize the automatic dropping and replacement of the cotton swab (9).

3. The emergency care device for stopping bleeding in limb trauma according to claim 2, characterized in that, The switching assembly (34) includes: The first baffle (341) is rotatably connected to the bottom opening of the cotton swab storage compartment (33) and connected to the clamping block (32) for opening or closing the bottom of the cotton swab storage compartment (33) synchronously with the movement of the clamping block (32). The sliding block (342) is slidably connected to the clamping block (32); The second baffle (343) is slidably connected to the bottom of the clamping block (32); The rotating rod (344) is hinged to the sliding block (342) and the second baffle (343), which drives the second baffle (343) to open or close the bottom opening of the clamping groove (321).

4. The emergency care device for stopping bleeding in limb trauma according to claim 1, characterized in that, The cotton swab clamping and changing mechanism (3) is symmetrically arranged on the left and right sides of the support frame (1), and the cotton swab (9) is arranged between the two cotton swab clamping and changing mechanisms (3).

5. The emergency care device for stopping bleeding in limb trauma according to claim 2, characterized in that, The cotton swab driving mechanism (4) includes: The drive block (41) is slidably disposed at the front end of the support frame (1) and is connected to the clamping block (32) in a transmission manner; The connecting rod assembly (42) is hinged at one end to the drive block (41) and slidably connected to the support frame (1) and transmittedly connected to the disinfection mechanism (2); The reset component (43) is located between the drive block (41) and the support frame (1) and is used to drive the drive block (41) to reset.

6. The emergency care device for stopping bleeding in limb trauma according to claim 5, characterized in that, The disinfection mechanism (2) includes: A liquid storage tank (21) is detachably mounted above the support frame (1); The needle assembly (22) is rotatably connected in the support frame (1) and is connected to the connecting rod assembly (42) for rotating and puncturing the liquid storage tank (21) when the connecting rod assembly (42) moves, so that the disinfectant flows out.

7. The emergency care device for stopping bleeding in limb trauma according to claim 5, characterized in that, It also includes a clamping assembly (6), which comprises: The first clamping member (61) is hinged to the connecting rod assembly (42) and is used to swing with the movement of the connecting rod assembly (42); The second clamping member (62) is symmetrically arranged with the first clamping member (61) and rotates to connect with it, and is used to clamp or release the cotton swab (9) in cooperation with the first clamping member (61).

8. The emergency care device for stopping bleeding in limb trauma according to claim 1, characterized in that, The pressure hemostasis mechanism (5) includes: An airbag (51) is located on the side of the support frame (1) facing the limb, and is used to fit the limb surface after being inflated by an air pump; A gauze layer (52) is detachably wrapped around the outer surface of the airbag (51) to pressurize and hemostasis by adhering to the wound surface as the airbag (51) is inflated.

9. A first-aid hemostatic device for limb trauma according to claim 1, characterized in that, Also includes: The straps (7) are respectively connected to the front, back, left and right outer walls of the support frame (1) and are used to bind and fix the device to the injured limb. The telescopic block (8) is telescopically connected to the support frame (1) and is used to adjust the fit between the support frame (1) and the limb.

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