Medical emergency hemostatic plug and its production device and production process

Abstract

The present application relates to the technical field of medical devices, in particular to a medical first-aid hemostatic plug and a production device and production process thereof. The first-aid hemostatic plug comprises a circular table-shaped body, an elastic buffer cavity and an elastic cover. The first-aid hemostatic plug prepared by the production device and production process has a surface of all medical non-woven fabrics coated with chitosan, which can adsorb contaminated blood to close the wound, achieve hemostasis and antibiosis at the same time. The surface of the first-aid hemostatic plug is completely wrapped with an elastic cover, which provides an expansion space for the internal medical non-woven fabric, avoids adhesion to the wound and prevents the internal multiple medical non-woven fabrics from being separated during use. The structure design is especially suitable for rapid hemostasis of bleeding in hole wounds, sinus wounds and similar wound types. The first-aid hemostatic plug is convenient and fast to use. The production device and production process can realize precise, stable, orderly and rapid production of the first-aid hemostatic plug.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a medical emergency hemostatic plug and its manufacturing device and process. Background Technology

[0002] Modern warfare presents a diverse range of war wounds, characterized by their severity and complexity. Massive hemorrhage from war wounds has become a leading cause of disability and death in both peacetime and wartime. Rapid hemostasis is one of the key measures for saving lives among the six major techniques for treating war wounds. Most war wound bleeding is caused by bullet or shrapnel wounds, sinus tract injuries, and similar types of injuries. For these wounds, gauze packing is typically used for hemostasis, but this method is time-consuming and inconvenient.

[0003] Therefore, it is necessary to study a hemostatic structure that is easy to use and can quickly stop bleeding, as well as its production device and production process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a medical emergency hemostatic plug and its manufacturing device and manufacturing process.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a medical emergency hemostatic plug, the innovation of which lies in: comprising A frustum-shaped body, which is formed by compressing multiple medical non-woven fabrics, the surface of which is coated with chitosan, which absorbs contaminated blood and closes the wound to achieve hemostasis and antibacterial effect. An elastic buffer cavity is formed by an upward indentation at the center of the bottom of the frustum-shaped body. This cavity can adapt to complex wound shapes (such as concave or irregular edges), improving the fit of the structure. Simultaneously, it reduces direct pressure on the wound's underlying tissue, preventing ischemic damage caused by localized stress concentration. It also reduces the possibility of exudate seeping along the material's edges, lowering the risk of contamination. Later, doctors can use forceps or other instruments to completely remove the structure through this elastic buffer cavity, minimizing the risk of material residue. An elastic outer cover, which is a fourth medical non-woven fabric, is completely wrapped around the frustum-shaped body. The surface of the fourth medical non-woven fabric is also coated with chitosan, which can prevent the multiple medical non-woven fabrics from separating during use, and at the same time provides sufficient space for the internal medical non-woven fabric to absorb blood and expand. The frustum-shaped body is divided into three regions, including a top region pressed from a first medical nonwoven fabric, an upper region pressed from a second medical nonwoven fabric, and a lower region pressed from a third medical nonwoven fabric. Furthermore, the top region is located on the frustum-shaped body above the elastic buffer cavity, the lower region is located in the lower middle part of the frustum-shaped body and the elastic buffer cavity, and the upper region is located on the frustum-shaped body between the top region and the lower region. Moreover, the density of the first medical nonwoven fabric and the third medical nonwoven fabric is greater than that of the second medical nonwoven fabric and the fourth medical nonwoven fabric. The first medical nonwoven fabric and the third medical nonwoven fabric have the same density, and the second medical nonwoven fabric and the fourth medical nonwoven fabric have the same density. That is, the density of the top region and the lower region is greater than that of the upper region. When in use, the upper region absorbs water and expands first to locate it inside the wound. Then, the top and lower regions absorb blood and expand. This prevents the top region from expanding after contact with blood and pushing the structure outward from the wound, or even detaching it from the wound. It also prevents the lower region from expanding after contact with blood, which would prevent the structure from being pushed smoothly into the depth of the wound and cause continuous bleeding inside the wound.

[0006] The compression direction of the top region is set vertically downward, the compression direction of the upper region is set downward perpendicular to the inclined surface of the frustum-shaped body, and the compression direction of the lower region is also set downward perpendicular to the inclined surface of the frustum-shaped body.

[0007] This ensures that the expansion direction of the top area is set vertically upward during actual use, and the expansion direction of the upper area is also set vertically upward. The expansion direction of the lower area is also set vertically upward, so that the wound can be filled in all directions, improving the hemostasis and disinfection effect.

[0008] Furthermore, if the depth of the elastic buffer cavity is h and the height of the frustum-shaped body is H, then h = (1 / 3~4 / 5)H; The bottom diameter of the elastic buffer cavity is r, and the bottom diameter of the frustum-shaped body is R, then r = (1 / 5~1 / 2)R.

[0009] Furthermore, the elastic buffer cavity is frustum-shaped, conical, or cylindrical; Furthermore, when the elastic buffer cavity is frustum-shaped or conical, its slope is greater than that of the frustum-shaped structure body, resulting in better blood and dirt adsorption.

[0010] Furthermore, the elastic outer cover is fixed to the outer periphery of the frustum-shaped body by ultrasonic welding, and its weld is located inside the elastic buffer cavity.

[0011] An innovative production device for medical emergency hemostatic plugs includes a molding cavity, a positioning mandrel, a top compression component, an upper compression component, a lower compression component, and a pressure block, wherein the positioning mandrel, the top compression component, the upper compression component, and the lower compression component are all disposed within the molding cavity. The positioning mandrel is vertically arranged in the center of the bottom of the molding cavity to realize the molding of the elastic buffer cavity; The lower compression component includes a first top compression block and a plurality of lower compression blocks disposed on the lower middle periphery of the positioning mandrel. The interior of the plurality of lower compression blocks forms a lower region forming cavity, and the first top compression block and the lower region forming cavity are both coaxially disposed with the positioning mandrel. The upper compression component includes a second top compression block and a plurality of upper compression blocks disposed on the upper middle periphery of the positioning mandrel. The interior of the plurality of upper compression blocks forms an upper region forming cavity, and the second top compression block and the upper region forming cavity are both coaxially disposed with the positioning mandrel. The top compression component includes a third top compression block, which is coaxially disposed above the positioning mandrel; The pressure block is positioned above the positioning mandrel and has a locking groove that engages with the periphery of the lower region.

[0012] Furthermore, the slot has an inverted frustum-shaped structure inside, with its bottom inner diameter being larger than the top outer diameter of the lower region and smaller than the bottom outer diameter of the lower region. The frustum-shaped body is clamped to the fourth medical non-woven fabric by the pressure block, which can achieve simultaneous lifting of the two.

[0013] Furthermore, it also includes a rotating mounting bracket, which can be used to achieve rapid and precise switching between the first top compression block, the second top compression block, the third top compression block and the pressure block, which can significantly improve the processing speed. The rotating mounting frame includes a support column, which is vertically positioned. A rotary motor is mounted on the top of the support column, with its output end pointing vertically upwards. A horizontally positioned crossbar is also mounted on the top of the four extended sides of the crossbar, which are arranged in a clockwise direction as a first top compression block, a second top compression block, a third top compression block, and a pressure block. A first linear motor, a second linear motor, a third linear motor, and a fourth linear motor are arranged in a clockwise direction at the top of the four extended sides of the crossbar. The output ends of the first linear motor pass through the crossbar and are vertically downwards connected to the first top compression block; the output ends of the second linear motor pass through the crossbar and are vertically downwards connected to the second top compression block; the output ends of the third linear motor pass through the crossbar and are vertically downwards connected to the third top compression block; and the output ends of the fourth linear motor pass through the crossbar and are vertically downwards connected to the pressure block. The distances between the output shafts of the first, second, third, and fourth linear motors and the support column are equal.

[0014] The innovation of the manufacturing process for a medical emergency hemostatic plug production device lies in the following steps: S1. Lower region forming: The third medical non-woven fabric is wrapped around the lower middle periphery of the positioning mandrel, while the first top compression block is moved to be coaxial with the positioning mandrel. Then, the first top compression block and the lower compression block are used together to achieve compression forming of the lower region. The compression direction of the lower compression block is perpendicular to the periphery of the frustum-shaped body and set downwards, while the compression direction of the first top compression block is set vertically downwards. S2, First callback: Drives the first top compression block to rise and reset, while the lower compression block remains unchanged; S3. Upper region forming: The second medical non-woven fabric is wrapped around the upper middle periphery of the positioning mandrel. At the same time, the second top compression block is moved to be coaxial with the positioning mandrel. Then, the second top compression block and the upper compression block are used in conjunction with the lower compression block to achieve compression forming of the upper region. The compression direction of the upper compression block is perpendicular to the periphery of the frustum-shaped body and set downwards. The compression direction of the second top compression block is set vertically downwards. S4, Secondary Callback: Drives the second top compression block to rise and reset, while the upper compression block remains unchanged; S5. Top area forming: The first medical non-woven fabric is filled in the top center of the upper area. At the same time, the third top compression block is moved to be coaxial with the positioning mandrel. Then, the third top compression block is moved vertically downward to cooperate with the lower compression block and the upper compression block to achieve compression forming of the upper area, thus forming the frustum-shaped body. S6, Three callbacks: Drive the third top compression block to rise and reset, and at the same time drive the upper compression block and the lower compression block to tilt upward and reset; S7. Covering material: Cover the fourth medical nonwoven fabric on the frustum-shaped body, move the pressing block to be coaxial with the positioning mandrel, drive the pressing block to move vertically downward until it is in close contact with the fourth medical nonwoven fabric and the lower area, then move the pressing block upward, and lift the fourth medical nonwoven fabric and the frustum-shaped body together synchronously until they are completely separated from the molding cavity. S8. Molding: Remove the frustum-shaped body covered with the fourth medical nonwoven fabric, move it to the ultrasonic welding machine, use the ultrasonic welding machine to weld and close the fourth medical nonwoven fabric, and then put it on a push rod to push the welded and closed part into the elastic buffer cavity. The processing is completed.

[0015] Furthermore, the fixed rod has the same structure as the positioning mandrel in step S1.

[0016] The advantages of this invention are: 1. The medical emergency hemostatic plug prepared using this production apparatus and method has all the medical nonwoven fabrics coated with chitosan on their surfaces. This allows it to absorb contaminated blood and close the wound, achieving both hemostasis and antibacterial properties. After the plug is inserted into the wound, the upper region of the nonwoven fabric, with its lower density, absorbs blood and expands first, achieving hemostasis, disinfection, and positioning on the middle of the wound's inner wall. The upper and lower regions of the nonwoven fabric, with their higher density, expand more slowly after absorbing blood. Therefore, the upper region can be used to absorb and stop bleeding deep within the wound, while the lower region can absorb and stop bleeding from the outer side of the wound's inner wall. This device allows for rapid hemostasis of the entire wound by dividing it into sections, making it particularly suitable for hemostasis of bleeding from orifices, sinus tracts, and similar types of trauma. It is convenient and quick to use. Furthermore, the surface of this emergency hemostatic plug is completely covered by an elastic outer cover, providing expansion space for the internal medical non-woven fabric. This prevents adhesion to the wound and avoids detachment of the multiple pieces of medical non-woven fabric during use, thus preventing the need for repeated clamping during subsequent removal. Its structural design is particularly suitable for rapid hemostasis of bleeding from orifices, sinus tracts, and similar types of trauma. Combined with its production equipment and processes, this medical emergency hemostatic plug can be produced precisely, stably, systematically, and rapidly.

[0017] 2. The slot has an inverted frustum-shaped structure inside. Its bottom inner diameter is larger than the top outer diameter of the lower area, but smaller than the bottom outer diameter of the lower area. The frustum-shaped body is clamped to the fourth medical non-woven fabric by the pressure block, which can make the two lift up at the same time.

[0018] 3. The rotating mounting frame in the processing device can realize rapid and precise switching between the first top compression block, the second top compression block, the third top compression block and the pressure block, which can significantly improve the processing speed.

[0019] 4. When the upper region is formed, the second top compression block and the upper compression block are used in conjunction with the lower compression block to achieve compression forming. When the upper region is formed, the third top compression block is used in conjunction with the lower compression block and the upper compression block to achieve compression forming of the upper region. The cooperation of multiple parties achieves the precise positioning and forming of this structure. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the medical emergency hemostatic plug of the present invention.

[0021] Figure 2 This is a partial front view of the production device for the medical emergency hemostatic plug of the present invention.

[0022] Figure 3 This is a partial top view of the production device for the medical emergency hemostatic plug of the present invention.

[0023] Figure 4 This is a schematic diagram of the lower region molding operation structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the upper region molding operation structure of the present invention. Figure 6 This is a schematic diagram of the top region molding operation structure of the present invention. Figure 7 This is a schematic diagram of the cover material operation structure of the present invention. Detailed Implementation

[0025] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0026] like Figure 1 The medical emergency hemostatic plug shown includes a frustum-shaped body 1, an elastic buffer cavity 14, and an elastic outer cover 2.

[0027] The frustum-shaped body 1 is made of multiple medical non-woven fabrics compressed together. The surface of the medical non-woven fabrics is coated with chitosan, which absorbs contaminated blood and closes the wound while achieving hemostasis and antibacterial effects.

[0028] The bottom center of the frustum-shaped body 1 is concave to form an elastic buffer cavity 14, which can adapt to complex wound shapes (such as concave or irregular edges), improving the fit of the structure. It also reduces direct pressure on the wound's underlying tissue, preventing ischemic damage caused by localized stress concentration, and reducing the possibility of exudate seeping along the material's edges, thus lowering the risk of contamination. Later, doctors can use forceps or other instruments to completely remove the structure through the elastic buffer cavity 14, reducing the risk of material residue.

[0029] The depth of the elastic buffer cavity 14 is h, and the height of the frustum-shaped body 1 is H, then h = (1 / 3~4 / 5)H.

[0030] The bottom diameter of the elastic buffer cavity 14 is r, and the bottom diameter of the frustum-shaped body 1 is R, then r = (1 / 5~1 / 2)R.

[0031] The elastic buffer cavity 14 is frustum-shaped, conical, or cylindrical. When the elastic buffer cavity 14 is frustum-shaped or conical, its slope is greater than that of the frustum-shaped structure body, resulting in better blood and dirt adsorption.

[0032] In this embodiment, the elastic buffer cavity 14 is frustum-shaped.

[0033] The elastic outer cover 2 is a fourth type of medical nonwoven fabric, which completely wraps around the frustum-shaped body 1. The surface of the fourth type of medical nonwoven fabric is also coated with chitosan, which can prevent the multiple medical nonwoven fabrics from separating during use. At the same time, it provides sufficient space for the internal medical nonwoven fabric to absorb blood and expand.

[0034] The elastic outer cover 2 is fixed to the outer periphery of the frustum-shaped body 1 by ultrasonic welding, and its weld is located inside the elastic buffer cavity 14.

[0035] The frustum-shaped body 1 is divided into three regions, including a top region 11 formed by pressing a first medical nonwoven fabric, an upper region 12 formed by pressing a second medical nonwoven fabric, and a lower region 13 formed by pressing a third medical nonwoven fabric.

[0036] Furthermore, the top region 11 is located on the frustum-shaped body 1 above the elastic buffer cavity 14, the lower region 13 is located in the lower middle part of the frustum-shaped body 1 and the elastic buffer cavity 14, and the upper region 12 is located on the frustum-shaped body 1 between the top region 11 and the lower region 13. Moreover, the density of the first medical nonwoven fabric and the third medical nonwoven fabric is greater than that of the second medical nonwoven fabric and the fourth medical nonwoven fabric. The density of the first medical nonwoven fabric and the third medical nonwoven fabric is the same, and the density of the second medical nonwoven fabric and the fourth medical nonwoven fabric is the same. That is, the density of the top region 11 and the lower region 13 is greater than that of the upper region 12.

[0037] When in use, the upper region 12 absorbs water and expands first to achieve its positioning inside the wound. Then, the top region 11 and the lower region 13 absorb blood and expand. This prevents the top region 11 from expanding due to premature contact with blood, which could push the structure outward from inside the wound or even cause it to detach from the wound. It also prevents the lower region 13 from expanding due to contact with blood, which could prevent the structure from being pushed smoothly into the depth of the wound and cause continuous bleeding inside the wound.

[0038] The compression direction of the top region 11 is set vertically downward, the compression direction of the upper region 12 is set downward in a direction perpendicular to the inclined surface of the frustum-shaped body 1, and the compression direction of the lower region 13 is also set downward in a direction perpendicular to the inclined surface of the frustum-shaped body 1.

[0039] This ensures that the expansion direction of the top region 11 is set vertically upward during actual use, the expansion direction of the upper region 12 is set vertically upward, and the expansion direction of the lower region 13 is also set vertically upward, so that the wound can be filled in all directions, improving the hemostasis and disinfection effect.

[0040] After this structure is inserted into the wound, the upper region 12, with its lower density, absorbs blood and expands to achieve hemostasis, disinfection, and positioning in the middle of the wound's inner wall. The upper region 11 and lower region 13, with their higher density, absorb blood and expand more slowly. Therefore, the upper region 11 can be used to absorb and disinfect deep bleeding within the wound, while the lower region 13 can be used to absorb and disinfect bleeding on the outer side of the wound's inner wall. This allows for rapid hemostasis of the entire wound by zoning, making it particularly suitable for hemostasis of open wounds, sinus tract injuries, and similar types of trauma. It is convenient and quick to use.

[0041] like Figure 2-3 The device shown is a production apparatus for medical emergency hemostatic plugs, including a molding cavity 6, a positioning mandrel 7, a top compression component, an upper compression component 9, a lower compression component 10, a pressure block 15, and a rotating mounting frame 16. The positioning mandrel 7, the top compression component, the upper compression component 9, and the lower compression component 10 are all arranged in the molding cavity 6. This structure can be used to achieve rapid and precise switching between the first top compression block 101, the second top compression block 91, the third top compression block 8, and the pressure block 15, which can significantly improve the processing speed.

[0042] A base 3 is set on the ground, and a horizontal base plate 4 is installed on the top of the base 3. A circular ring 5 is fixedly installed on the top periphery of the base plate 4, and a molding cavity 6 is formed between the base plate 4 and the circular ring 5.

[0043] The positioning mandrel 7 is vertically set in the bottom center of the molding cavity 6. The bottom end of the positioning mandrel 7 passes through the base plate 4 and is bolted to the base 3 to realize the molding of the elastic buffer cavity 14. At the same time, different models of positioning mandrel 7 can be replaced according to the needs, which is highly practical.

[0044] The lower compression component 10 includes a first top compression block 101 and two lower compression blocks 102 disposed on the lower circumference of the positioning mandrel 7. The first top compression block 101 is disposed above the annular body 5, and the bottom center of the first top compression block 101 is provided with a first groove for accommodating the upper part of the positioning mandrel 7. The two lower compression blocks 102 form a lower region forming cavity, and the first top compression block 101 and the lower region forming cavity are coaxially arranged with the positioning mandrel 7.

[0045] The upper compression component 9 includes a second top compression block 91 and two upper compression blocks 92 disposed on the upper circumference of the positioning mandrel 7. The second top compression block 91 is disposed above the annular body 5, and the interior of the two upper compression blocks 92 forms an upper region forming cavity. The bottom of the second top compression block 91 is an inverted frustum-shaped structure, and the second top compression block 91 and the upper region forming cavity are coaxially disposed with the positioning mandrel 7.

[0046] The top compression component includes a third top compression block 8, which is positioned above the annular body 5 and coaxially arranged with the positioning mandrel 7.

[0047] The pressure block 15 is positioned above the positioning mandrel 7 and has a locking groove that engages with the periphery of the lower region 13.

[0048] The inside of the slot is an inverted frustum shape. Its bottom inner diameter is larger than the top outer diameter of the lower region 13, but smaller than the bottom outer diameter of the lower region 13. The frustum-shaped body 1 and the fourth medical non-woven fabric are clamped together by the pressure block 15, which can make the two lift up at the same time.

[0049] Two support rods are also installed on the outer side of the annular body 5 on the substrate 4. Each support rod is equipped with an upper linear motor and a lower linear motor via a mounting base. The output end of the upper linear motor extends in the compression direction of the upper region 12, and the output end of the lower linear motor extends in the compression direction of the lower region 13. The output end of the upper linear motor passes through the interior of the annular body 5 and is connected to the upper compression block 92, and the output end of the lower linear motor passes through the interior of the annular body 5 and is connected to the lower compression block 102.

[0050] The rotating mounting bracket 16 includes a support column 161, which is vertically arranged. A rotary motor 162 is installed on the top of the support column 161, with its output end vertically upward and a horizontally arranged cross 163 is installed thereon.

[0051] The four extended sides of the cross 163 are sequentially provided with a first top compression block 101, a second top compression block 91, a third top compression block 8, and a pressure block 15 above the molding cavity 6 in a clockwise direction. At the top of the four extended sides of the cross 163, a first linear motor 1631, a second linear motor 1632, a third linear motor 1633, and a fourth linear motor 1634 are sequentially installed in a clockwise direction. The output end of the first linear motor 1631 passes through the cross 163 and vertically downwards to connect with the first top compression block 101. The output end of the second linear motor 1632 passes through the cross 163 and vertically downwards to connect with the first top compression block 101. The frame 163 is vertically downward connected to the second top compression block 91. The output end of the third linear motor 1633 passes through the cross 163 and is vertically downward connected to the third top compression block 8. The output end of the fourth linear motor 1634 passes through the cross 163 and is vertically downward set with a connecting plate 1635. The bottom of the connecting plate 1635 is connected to the pressure block 15 through three connecting rods 1636 that are fixed with an inclined circumference. The distance between the output shafts of the first linear motor 1631, the second linear motor 1632, the third linear motor 1633 and the fourth linear motor 1634 and the support column 161 is equal.

[0052] Initially, the first top compression block 101 is positioned vertically above the molding cavity 6. Subsequently, the cross 163 can be rotated by the rotary motor 162, thereby enabling the position switching of the first top compression block 101, the second top compression block 91, the third top compression block 8, and the pressure block 15.

[0053] A manufacturing process for a medical emergency hemostatic plug production device includes the following steps: S1, Lower region 13 is formed: as shown Figure 4 As shown, a third medical nonwoven fabric is wrapped around the lower middle periphery of the positioning mandrel 7, while the first top compression block 101 is moved to be coaxial with the positioning mandrel 7. In this embodiment, the positioning mandrel 7 is frustum-shaped. Then, the first top compression block 101 and the lower compression block 102 are used to compress and shape the lower region 13. The compression direction of the lower compression block 102 is perpendicular to the periphery of the frustum-shaped body 1 and is set downwards, while the compression direction of the first top compression block 101 is set vertically downwards.

[0054] S2, First callback: Drive the first top compression block 101 to rise and reset, while the lower compression block 102 remains unchanged.

[0055] S3, Upper region 12 forming: as shown Figure 5 As shown, the second medical nonwoven fabric is wrapped around the upper circumference of the positioning mandrel 7, and the second top compression block 91 is moved to be coaxial with the positioning mandrel 7. Then, the second top compression block 91 and the upper compression block 92 are used in conjunction with the lower compression block 102 to compress and shape the upper region 12. The compression direction of the upper compression block 92 is perpendicular to the side wall of the frustum-shaped body 1 and set downwards, and the compression direction of the second top compression block 91 is set vertically downwards.

[0056] S4, Secondary Callback: Drives the second top compression block 91 to rise and reset, while the upper compression block 92 remains unchanged.

[0057] S5, Top area 11 molding: (e.g., ...) Figure 6 As shown, the first medical nonwoven fabric is filled in the top center of the upper region 12, and the third top compression block 8 is moved to be coaxial with the positioning mandrel 7. Then, the third top compression block 8 is moved vertically downward to cooperate with the lower compression block 102 and the upper compression block 92 to achieve the compression molding of the upper region 12, thus forming the frustum-shaped body 1.

[0058] When the upper region 12 is formed, the second top compression block 91 and the upper compression block 92 work together with the lower compression block 102 to achieve compression forming. When the upper region 11 is formed, the third top compression block 8 works together with the lower compression block 102 and the upper compression block 92 to achieve compression forming of the upper region 12. The cooperation of multiple parties achieves the precise positioning and forming of this structure.

[0059] S6, Three callbacks: Drive the third top compression block 8 to rise and reset, and at the same time drive the upper compression block 92 and the lower compression block 102 to tilt upward and reset.

[0060] S7, Cover Material: such as Figure 7 As shown (the fourth medical nonwoven fabric is not shown in the figure), the middle part of the fourth medical nonwoven fabric is aligned with the top center of the frustum-shaped body 1 and placed on the frustum-shaped body 1. The pressure block 15 is moved to be coaxial with the positioning mandrel 7 and driven to move vertically downward until it is in close contact with the fourth medical nonwoven fabric and the lower area 13. Then the pressure block 15 is moved upward, and the fourth medical nonwoven fabric and the frustum-shaped body 1 are raised synchronously until they are completely separated from the molding cavity 6.

[0061] S8. Molding: Remove the frustum-shaped body 1 covered with the fourth medical nonwoven fabric, move it to the ultrasonic welding machine, use the ultrasonic welding machine to weld and close the fourth medical nonwoven fabric, and then put it on a push rod to push the welded and closed part into the elastic buffer cavity 14. The processing is completed.

[0062] The fixed rod has the same structure as the positioning mandrel 7 in step S1.

[0063] The medical emergency hemostatic plug prepared using this production device and method has all the medical non-woven fabrics coated with chitosan, which can absorb contaminated blood and close the wound, achieving both hemostasis and antibacterial properties. Furthermore, the surface of this emergency hemostatic plug is completely covered by an elastic outer cover 2, providing expansion space for the internal medical non-woven fabrics, preventing adhesion to the wound, and avoiding detachment between multiple internal medical non-woven fabrics during use, thus preventing the need for repeated clamping during subsequent removal. Its structural design is particularly suitable for rapid hemostasis of bleeding from orifices, sinus tracts, and similar types of trauma. It is convenient and quick to use. Combined with its production device and process, this medical emergency hemostatic plug can be produced precisely, stably, systematically, and rapidly.

[0064] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A medical emergency hemostatic plug, characterized in that: include A frustum-shaped body, wherein the frustum-shaped body is formed by compressing multiple medical non-woven fabrics, and the surface of the medical non-woven fabrics is coated with chitosan; An elastic buffer cavity is formed by an upward indentation at the center of the bottom of the frustum-shaped body; An elastic outer cover, wherein the elastic outer cover is a fourth medical non-woven fabric, and is configured to completely wrap the frustum-shaped body, and the surface of the fourth medical non-woven fabric is also coated with chitosan. The frustum-shaped body is divided into three regions, including a top region pressed from a first medical nonwoven fabric, an upper region pressed from a second medical nonwoven fabric, and a lower region pressed from a third medical nonwoven fabric. Furthermore, the top region is located on the frustum-shaped body above the elastic buffer cavity, the lower region is located in the lower middle part of the frustum-shaped body and the elastic buffer cavity, and the upper region is located on the frustum-shaped body between the top region and the lower region. Moreover, the density of the first medical nonwoven fabric and the third medical nonwoven fabric is greater than that of the second medical nonwoven fabric and the fourth medical nonwoven fabric. The first medical nonwoven fabric and the third medical nonwoven fabric have the same density, and the second medical nonwoven fabric and the fourth medical nonwoven fabric have the same density. The compression direction of the top region is set vertically downward, the compression direction of the upper region is set downward perpendicular to the inclined surface of the frustum-shaped body, and the compression direction of the lower region is also set downward perpendicular to the inclined surface of the frustum-shaped body.

2. The medical emergency hemostatic plug according to claim 1, characterized in that: The depth of the elastic buffer cavity is h, and the height of the frustum-shaped body is H, then h = (1 / 3~4 / 5)H; The bottom diameter of the elastic buffer cavity is r, and the bottom diameter of the frustum-shaped body is R, then r = (1 / 5~1 / 2)R.

3. The medical emergency hemostatic plug according to claim 1, characterized in that: The elastic buffer cavity is frustum-shaped, conical, or cylindrical; Furthermore, when the elastic buffer cavity is frustum-shaped or conical, its slope is greater than that of the frustum-shaped structure body.

4. The medical emergency hemostatic plug according to claim 1, characterized in that: The elastic outer cover is fixed to the outer periphery of the frustum-shaped body by ultrasonic welding, and its weld is located inside the elastic buffer cavity.

5. A production apparatus for a medical emergency hemostatic plug according to any one of claims 1-4, characterized in that: It includes a molding cavity, a positioning mandrel, a top compression component, an upper compression component, a lower compression component, and a pressure block, wherein the positioning mandrel, the top compression component, the upper compression component, and the lower compression component are all disposed within the molding cavity; The positioning mandrel is vertically arranged in the center of the bottom of the molding cavity to realize the molding of the elastic buffer cavity; The lower compression component includes a first top compression block and a plurality of lower compression blocks disposed on the lower middle periphery of the positioning mandrel. The interior of the plurality of lower compression blocks forms a lower region forming cavity, and the first top compression block and the lower region forming cavity are both coaxially disposed with the positioning mandrel. The upper compression component includes a second top compression block and a plurality of upper compression blocks disposed on the upper middle periphery of the positioning mandrel. The interior of the plurality of upper compression blocks forms an upper region forming cavity, and the second top compression block and the upper region forming cavity are both coaxially disposed with the positioning mandrel. The top compression component includes a third top compression block, which is coaxially disposed above the positioning mandrel; The pressure block is positioned above the positioning mandrel and has a locking groove that engages with the periphery of the lower region.

6. The production device for a medical emergency hemostatic plug according to claim 5, characterized in that: The slot has an inverted frustum-shaped structure inside, with its bottom inner diameter being larger than the top outer diameter of the lower region and smaller than the bottom outer diameter of the lower region.

7. The production device for a medical emergency hemostatic plug according to claim 5, characterized in that: It also includes a rotating mounting bracket; The rotating mounting frame includes a support column, which is vertically positioned. A rotary motor is mounted on the top of the support column, with its output end pointing vertically upwards. A horizontally positioned crossbar is also mounted on the top of the four extended sides of the crossbar, which are arranged in a clockwise direction as a first top compression block, a second top compression block, a third top compression block, and a pressure block. A first linear motor, a second linear motor, a third linear motor, and a fourth linear motor are arranged in a clockwise direction at the top of the four extended sides of the crossbar. The output ends of the first linear motor pass through the crossbar and are vertically downwards connected to the first top compression block; the output ends of the second linear motor pass through the crossbar and are vertically downwards connected to the second top compression block; the output ends of the third linear motor pass through the crossbar and are vertically downwards connected to the third top compression block; and the output ends of the fourth linear motor pass through the crossbar and are vertically downwards connected to the pressure block. The distances between the output shafts of the first, second, third, and fourth linear motors and the support column are equal.

8. A manufacturing process for a medical emergency hemostatic plug manufacturing device as described in claim 5, characterized in that: Includes the following steps: S1. Lower region forming: The third medical non-woven fabric is wrapped around the lower middle periphery of the positioning mandrel, while the first top compression block is moved to be coaxial with the positioning mandrel. Then, the first top compression block and the lower compression block are used together to achieve compression forming of the lower region. The compression direction of the lower compression block is perpendicular to the periphery of the frustum-shaped body and set downwards, while the compression direction of the first top compression block is set vertically downwards. S2, First callback: Drives the first top compression block to rise and reset, while the lower compression block remains unchanged; S3. Upper region forming: The second medical non-woven fabric is wrapped around the upper middle periphery of the positioning mandrel. At the same time, the second top compression block is moved to be coaxial with the positioning mandrel. Then, the second top compression block and the upper compression block are used in conjunction with the lower compression block to achieve compression forming of the upper region. The compression direction of the upper compression block is perpendicular to the periphery of the frustum-shaped body and set downwards. The compression direction of the second top compression block is set vertically downwards. S4, Secondary Callback: Drives the second top compression block to rise and reset, while the upper compression block remains unchanged; S5. Top area forming: The first medical non-woven fabric is filled in the top center of the upper area. At the same time, the third top compression block is moved to be coaxial with the positioning mandrel. Then, the third top compression block is moved vertically downward to cooperate with the lower compression block and the upper compression block to achieve compression forming of the upper area, thus forming the frustum-shaped body. S6, Three callbacks: Drive the third top compression block to rise and reset, drive the upper compression block and the lower compression block to tilt and move upward to reset; S7. Covering material: Cover the fourth medical nonwoven fabric on the frustum-shaped body, move the pressing block to be coaxial with the positioning mandrel, drive the pressing block to move vertically downward until it is in close contact with the fourth medical nonwoven fabric and the lower area, then move the pressing block upward, and lift the fourth medical nonwoven fabric and the frustum-shaped body together synchronously until they are completely separated from the molding cavity. S8. Molding: Remove the frustum-shaped body covered with the fourth medical nonwoven fabric, move it to the ultrasonic welding machine, use the ultrasonic welding machine to weld and close the fourth medical nonwoven fabric, and then put it on a push rod to push the welded and closed part into the elastic buffer cavity. The processing is completed.

9. The manufacturing process of the medical emergency hemostatic plug manufacturing device according to claim 8, characterized in that: The fixed rod has the same structure as the positioning mandrel in step S1.

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