Auxiliary device for skin closure

Abstract

The invention relates to the technical field of skin closure, in particular to an auxiliary device for skin closure. Comprising a subcutaneous jacking mechanism, the subcutaneous jacking mechanism is partially embedded in a wound, the part, exposed out of the wound, of the subcutaneous jacking mechanism is provided with an on-skin attaching mechanism, and the on-skin attaching mechanism is attached to the skin on the outer side of the wound. According to the application, the skin on the outer side of the wound can be attached together through the on-skin attaching mechanism, and the on-skin attaching mechanism can generate pushing force towards the internal part of the oral administration on the subcutaneous jacking mechanism, so that the subcutaneous jacking mechanism can be pushed towards the internal part of the skin while the two sides of the wound are extruded and folded towards the middle part; therefore, accumulation of extracellular matrixes such as collagen generated when the body repairs the wound on the skin of the wound is reduced, and further skin closure is effectively completed while scar protrusion is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of skin closure, and in particular to an auxiliary device for skin closure. Background Art

[0002] Skin wounds are extremely common in medical procedures such as surgical trauma treatment, and skin closure methods usually include suturing and external skin bonding.

[0003] In the related art, suturing is a traditional method of wound closure. By using sutures to tightly align the tissues on both sides of the wound, suturing can provide a strong closing force, but the suture marks will form obvious scars. External skin bonding is to use various skin adhesives, tapes or dressings and other materials to bond the epidermis of the wound together. Although external skin bonding will not leave obvious scars due to suture marks, it squeezes the two sides of the wound toward the middle, because damage to deep tissues will stimulate the body to produce more extracellular matrix such as collagen to repair the wound, and excessive external skin bonding may lead to scar hyperplasia. It is very easy to form a convex scar after the wound heals.

[0004] Scars left behind at closed skin sites or protruding scars can have numerous negative consequences. Not only do they affect appearance, but scars on visible areas like the hands, feet, and face can also lead to low self-esteem, anxiety, and other negative impacts on physical and mental health. Some scars can also cause discomfort like itching and pain, disrupting daily life.

[0005] Therefore, how to effectively complete skin closure and reduce scar bulge when treating a wound is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In order to effectively complete skin closure and reduce the bulge of scars when treating wounds, the present application provides an auxiliary device for skin closure.

[0007] The present application provides a skin closure auxiliary device that adopts the following technical solutions: A skin closure auxiliary device includes a subcutaneous closing mechanism, wherein the subcutaneous closing mechanism is partially buried inside the wound, and the part of the subcutaneous closing mechanism exposed outside the wound is provided with an upper skin closing mechanism, and the upper skin closing mechanism is attached to the skin outside the wound.

[0008] By adopting the above technical solution, the skin-on-skin fitting mechanism can not only fit the skin outside the wound together, but also generate an internal pushing force on the subcutaneous closing mechanism. In this way, while squeezing the two sides of the wound toward the middle and closing them, the subcutaneous closing mechanism can also be pushed toward the inside of the skin, thereby reducing the accumulation of extracellular matrix such as collagen produced by the body when repairing the wound in the skin of the wound, thereby effectively completing the skin closure while reducing the protrusion of the scar.

[0009] Furthermore, the subcutaneous closing mechanism includes a pressure rod, the skin-contacting mechanism is arranged on the pressure rod, and two symmetrically arranged mounting seats are connected to the pressure rod near the two ends. A push tube is provided between the two mounting seats, and the middle part of the push tube is pressed against the inside of the wound in an arc shape. A socket is provided on the mounting seat corresponding to the push tube, and the two ends of the push tube are respectively and detachably inserted into the sockets on the two mounting seats.

[0010] By adopting the above technical solution, the top tube can be detachably connected to the mounting seat so that top tubes of different lengths can be installed. The shape of the top tube can be adjusted by adjusting the position of the mounting seat on the pressure rod, so that the shape of the top tube matches the depth and length of the wound. The skin-fitting mechanism on the pressure rod is then fitted on the skin outside the wound, which can drive the pressure rod together with the mounting seat to press the top tube downward on the tissue at the wound with an appropriate force.

[0011] Furthermore, the leather fitting mechanism includes a winding tube, which is mounted on the pressure rod. Several film rolls are wound on the outside of the winding tube. The winding directions of two adjacent film rolls are opposite, and the ends of the films with the same winding direction away from the winding tube are fixedly connected with connecting strips.

[0012] By adopting the above technical solution, the winding tube can not only conveniently install the film during the installation process, but also conveniently pull out the film during use. The connecting strip arranged at the end of the winding tube can pull out the film more conveniently and quickly. The opposite winding direction of the film can symmetrically fit the pulled film strip on the skin on both sides of the wound. This design increases the convenience and practicality of the auxiliary device.

[0013] Furthermore, both ends of the top tube exposed outside the wound are provided with protective patches, which are adhered to the outside of the wound. A dressing and an adhesive are provided on the side of the protective patch close to the wound, and the adhesive is provided on the outside of the dressing.

[0014] By adopting the above technical solution, the protective patch not only closes the skin outside the wound, creating a microenvironment conducive to wound healing, but also maintains the wound-healing dressing at the wound site, ensuring that the drug continues to act on the wound, thereby improving drug utilization and fully realizing the drug's therapeutic effect. It also prevents the film from causing friction and collision with the wound site, forming a buffer layer between the wound and the external environment, reducing external physical stimulation to the wound, protecting the wound from secondary damage, and providing a relatively safe environment for wound healing.

[0015] Furthermore, the film roll includes a base tape, the base tape is made of elastic material, and an adhesive layer is attached to the inner side of the base tape.

[0016] By adopting the above technical solution and making the baseband of elastic material, the film can better adapt to the shapes and curves of different body parts. While ensuring a closed effect, the elastic baseband can also expand and contract with the movement of the limb, preventing the film from loosening or falling off due to movement, thereby providing continuous and stable closing pressure on the wound. The adhesive layer allows the film to firmly adhere to the skin around the wound, ensuring that the film will not easily shift during use.

[0017] Furthermore, a locking mechanism is provided between the mounting seat and the pressure rod, and the locking mechanism includes a mounting groove provided on the mounting seat, a through hole provided inside the mounting groove corresponding to the outer side surface of the pressure rod, a locking lever is rotatably connected inside the mounting groove, one end of the locking lever is fixedly connected to a locking block, the locking block is passed through the through hole, and the other end of the locking lever is abutted and connected to a spring, and the spring pushes the locking lever so that the locking block abuts and connects to the pressure rod.

[0018] By adopting the above technical solution, the locking mechanism utilizes the compressed state of the spring to apply an elastic force to one end of the locking lever, so that the locking lever rotates around its rotation connection point, thereby driving the locking block at the other end of the locking lever to move, and the locking block will be tightly against the locking groove of the pressure rod, thereby achieving precise locking of the position of the pressure rod and ensuring the stability of the device. The spring provides sufficient locking force and can withstand a certain external force without loosening. The multiple locking grooves on the pressure rod provide the device with multi-level adjustment, and the position of the mounting seat on the pressure rod can be flexibly adjusted according to the specific conditions of the wound, thereby adapting to different wounds. The spring can enable the locking block to quickly snap into the locking groove to achieve locking, and it can be unlocked by applying appropriate external force without the need for complex tools. In addition, the locking mechanism is integrated into the mounting groove on the mounting seat, does not take up additional space, and improves the practicality and convenience of the device.

[0019] Furthermore, the top pipe is fixedly and sealedly connected to a support pipe on the inner side surface of the arc, the support pipe is symmetrically arranged on the top pipe, the middle of the top pipe is sealed and connected to a blocking block, and the support pipe is provided with a plurality of evenly distributed drainage holes.

[0020] By adopting the above technical solution, the support tube is fixedly and sealedly connected to the top tube, and the support tube is symmetrically arranged on the top tube. The support tube can not only increase the structural strength of the top tube, but also the drainage holes opened on the support tube can effectively discharge secretions such as exudate from the wound, avoiding the accumulation of secretions in the wound, thereby creating good conditions for wound healing.

[0021] Furthermore, a suction and injection mechanism is provided between the mounting seat and the top pipe, and the suction and injection mechanism includes a suction chamber and an injection chamber, the suction chamber and the injection chamber are respectively opened on the two mounting seats, the suction chamber and the injection chamber are respectively sealed and connected with the two ends of the top pipe through the jack, a first one-way input valve is provided between the suction chamber and the top pipe, and a first one-way output valve is provided between the injection chamber and the top pipe; the mounting seat where the suction chamber is located is sealed with a second one-way output valve connected with the suction chamber, and the mounting seat where the injection chamber is located is sealed with a second one-way input valve connected with the injection chamber; the second one-way output valve is connected with a discharge pipe, and the second one-way input valve is connected with a sealing cover.

[0022] By adopting the above technical solution, the suction mechanism can, after removing the sealing cover, input the liquid medicine into the injection chamber through the second one-way input valve, while blocking the discharge of the discharge pipe. The medicine in the injection chamber can then be input into the top pipe through the first one-way output valve, and the medicine in the top pipe can then enter the wound through the drainage hole provided on the support pipe to perform drug treatment on the healing area. The suction mechanism can also, when opening the discharge pipe, allow secretions or residual medicine inside the wound to flow into the aspiration chamber through the drainage hole provided on the support pipe, the top pipe, and the first one-way input valve. The secretions or residual medicine in the aspiration chamber can then be discharged from the discharge pipe through the second one-way output valve.

[0023] Furthermore, a pressure regulating mechanism is provided on the mounting seat corresponding to the suction chamber and the injection chamber, and the pressure regulating mechanism includes a piston plate that is sealingly and slidingly connected to the suction chamber or the injection chamber, and a screw is fixedly connected to the side of the piston plate facing away from the mounting seat, and a cavity cover is fixedly connected to the two mounting seats corresponding to the suction chamber and the injection chamber respectively, and a knob is rotatably connected to the cavity cover, and a screw hole is opened on the knob corresponding to the screw, and the screw and the knob are threadedly connected through the screw hole.

[0024] By adopting the above technical solution, by turning the knob, the screw and the piston plate can be driven to move up and down through the matching connection between the screw hole and the screw. By adjusting the position of the piston plate, the pressure inside the suction chamber and the injection chamber can be adjusted. In this way, pressure control can not only more stably control the entry of the drug into the wound, but also more accurately and reliably suck out the secretions inside the wound.

[0025] Furthermore, the portion of the subcutaneous closing mechanism embedded in the wound is made of biodegradable materials.

[0026] By adopting the above technical solution, the portion of the subcutaneous closure mechanism embedded within the wound is made of a biodegradable material. Biodegradable materials generally have good biocompatibility and do not cause strong immune reactions or rejection. In the early stages of wound healing, the material provides a certain degree of support and fixation. As the wound gradually heals, the material's strength gradually decreases, avoiding excessive pressure or restriction on the wound. Furthermore, the biodegradable material is gradually metabolized by the body itself, eliminating the need for secondary surgical removal, thereby significantly reducing secondary damage to the patient.

[0027] The beneficial effects achieved include at least the following: 1. The present application not only can fit the skin outside the wound together through the skin-fitting mechanism, but also can generate an internal pushing force on the subcutaneous closing mechanism. In this way, while squeezing the two sides of the wound toward the middle and closing them, the subcutaneous closing mechanism can also be pushed toward the inside of the skin, thereby reducing the accumulation of extracellular matrix such as collagen produced by the body during wound repair in the skin of the wound, thereby effectively completing skin closure while reducing the protrusion of the scar.

[0028] 2. The present application utilizes the compression of the spring through the locking mechanism to apply an elastic force to one end of the locking lever, thereby causing the locking lever to rotate about its pivot point, thereby driving the locking block at the other end of the locking lever to move. Under the action of the spring, the locking block penetrates the through hole in the mounting slot and tightly abuts against the locking slot of the pressure rod, achieving precise locking of the pressure rod position and ensuring the stability of the device.

[0029] 3. The present invention utilizes the interaction of the suction and injection mechanism and the pressure regulating mechanism to control pressure, thereby enabling more stable control of drug entry into the wound and more accurate and reliable suction of secretions from the wound, thereby reducing the risk of wound infection and providing a relatively safe environment for wound healing. This allows for effective skin closure while also controlling wound infection and promoting wound healing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the overall structure of the second embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the overall structure of the third embodiment of the present application.

[0033] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the present application.

[0034] Figure 5 It is a schematic diagram of the structural decomposition of an embodiment of the present application.

[0035] Figure 6 It is a schematic diagram of the partial structure of a film in one embodiment of the present application.

[0036] Figure 7 It is a schematic diagram of the internal structure of the locking mechanism in one embodiment of the present application.

[0037] Figure 8 This is a schematic diagram of the installation structure of the mounting base in one embodiment of the present application.

[0038] Explanation of reference numerals: 100, subcutaneous closing mechanism; 101, pressure rod; 102, mounting seat; 103, pushing tube; 104, insertion hole; 105, support tube; 106, blocking block; 107, drainage hole; 200, skin-fitting mechanism; 201, rewinding tube; 202, film; 2021, base tape; 2022, adhesive layer; 203, connecting strip; 204, protective patch; 300, locking mechanism; 301, mounting groove; 302, through hole; 303, locking lever ; 304, locking block; 305, spring; 306, locking groove; 400, suction and injection mechanism; 401, suction chamber; 402, injection chamber; 403, first one-way input valve; 404, first one-way output valve; 405, second one-way output valve; 406, second one-way input valve; 407, discharge pipe; 408, sealing cover; 500, pressure regulating mechanism; 501, piston plate; 502, screw; 503, chamber cover; 504, knob; 505, screw hole. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0042] The embodiment of the present application discloses an auxiliary device for skin closure.

[0043] Please refer to Figures 1 to 3 In one embodiment of the present application, a skin closure auxiliary device includes a subcutaneous closing mechanism 100, which is partially buried inside the wound. The part of the subcutaneous closing mechanism 100 exposed outside the wound is provided with a skin-attaching mechanism 200, which is attached to the skin outside the wound.

[0044] Please refer to Figures 1 to 5 In a specific embodiment of the present application, the subcutaneous pushing mechanism 100 includes a pushing tube 103, which is arranged in an arc shape. The pushing tube 103 is fixedly and sealedly connected to a support tube 105 on the inner side surface of the arc. The pushing tube 103 and the support tube 105 are both made of biodegradable materials, for example, polylactic acid (PLA), polycaprolactone (PCL), polyhydroxyalkanoate (PHA) and other biodegradable materials, and are made into a tubular structure with a certain structural strength through extrusion molding or injection molding.

[0045] During use, the portion of the subcutaneous closure mechanism 100 that is embedded within the wound, the push tube 103 and the support tube 105, is made of a biodegradable material. Biodegradable materials generally have good biocompatibility and do not cause strong immune or rejection reactions. In the early stages of wound healing, the material can provide a certain degree of support and fixation. As the wound gradually heals, the material's strength gradually decreases, avoiding excessive pressure or restriction on the wound. Furthermore, the biodegradable material is gradually metabolized by the body itself, eliminating the need for secondary surgery for removal, thereby significantly reducing secondary damage to the patient.

[0046] Please refer to Figures 1 to 5 In one embodiment of the present application, a sealing block 106 is sealedly connected to the middle portion of the top tube 103. This sealing block 106 divides the flow path within the top tube 103 into two sections corresponding to the ends of the support tube 105. The support tube 105 is provided with a plurality of evenly distributed drainage holes 107. The support tube 105 is fixedly and sealedly connected to the top tube 103 and is symmetrically arranged on the top tube 103. This not only increases the structural strength of the top tube 103, but also the drainage holes 107 provided on the support tube 105 effectively drain exudate and other secretions from the wound, preventing the accumulation of secretions in the wound, thereby creating favorable conditions for wound healing.

[0047] Please refer to Figures 1 to 5 In one embodiment of the present application, both ends of the top tube 103 exposed to the outside of the wound are provided with protective patches 204, and the protective patches 204 are pasted on the outside of the wound. The side of the protective patch 204 close to the wound is provided with a dressing and an adhesive, and the adhesive is provided on the outside of the dressing. The protective patch 204 can not only close the skin outside the wound, but also create a microenvironment conducive to wound healing. The dressing that is conducive to wound healing can also be kept at the wound, ensuring that the drug continues to act on the wound, thereby improving the utilization rate of the drug and giving full play to the therapeutic effect of the drug. It can also prevent the film 202 from causing friction and collision to the wound, forming a buffer layer between the wound and the external environment, reducing the physical stimulation of the wound by the outside world, protecting the wound from secondary damage, and providing a relatively safe environment for wound healing.

[0048] During use, the skin-fitting mechanism 200 can not only fit the skin outside the wound together, but also generate an internal pushing force on the subcutaneous closing mechanism 100. In this way, while squeezing the two sides of the wound toward the middle and closing them, the subcutaneous closing mechanism 100 can also be pushed toward the inside of the skin, thereby reducing the accumulation of extracellular matrix such as collagen produced by the body when repairing the wound in the skin of the wound, thereby effectively completing the skin closure while reducing the bulge of the scar.

[0049] Please refer to Figures 2 to 4 In another embodiment of the present application, the subcutaneous pressing mechanism 100 further includes a pressure rod 101, and the skin-fitting mechanism 200 is arranged on the pressure rod 101. The outside of the pressure rod 101 is connected to a mounting seat 102 near its two ends. The mounting seat 102 is fitted to the two ends of the wound, and a push tube 103 is arranged between the two mounting seats 102 on the side away from the skin-fitting mechanism 200. The middle part of the push tube 103 is arc-shaped and presses against the inside of the wound. A socket 104 is provided on the bottom surface of the mounting seat 102 corresponding to the push tube 103, and the two ends of the push tube 103 are respectively and detachably inserted into the socket 104 on the mounting seat 102. By using the mounting seat 102 to detachably connect the top tube 103, top tubes 103 of different lengths can be installed. By adjusting the position of the mounting seat 102 on the pressure rod 101, the shape of the top tube 103 can be adjusted to match the shape of the top tube 103 with the depth and length of the wound. Then, by using the skin-fitting mechanism 200 on the pressure rod 101 to fit on the skin outside the wound, the pressure rod 101 and the mounting seat 102 can be driven to press the top tube 103 downward on the tissue at the wound with appropriate force.

[0050] Please refer to Figures 2 to 4 In another embodiment of the present application, the skin-attaching mechanism 200 further includes a reel 201, which is mounted on the pressure rod 101. A plurality of films 202 are wound around the outer side of the reel 201. The reel 201 not only facilitates the installation of the films 202 during installation, but also allows for the convenient removal of the films 202 during use, thus increasing the convenience of the auxiliary device.

[0051] Please refer to Figure 2 and Figure 3 In a specific embodiment of the present application, the number of pressure rods 101 can be one or two. When one pressure rod 101 is used, one winding tube 201 is also used, and the film 202 is arranged in parallel on the winding tube 201. When two pressure rods 101 are used, two winding tubes 201 are also used.

[0052] Please refer to Figure 2 and Figure 3 In a specific embodiment of the present application, the films 202 are arranged on the winding tube 201 in an interlaced manner, and the winding directions of the two adjacent films 202 are opposite. The films 202 with the same winding direction are fixedly connected to the ends away from the winding tube 201 with connecting strips 203. The connecting strips 203 arranged at the ends of the winding tube 201 can pull out the films 202 more conveniently and quickly. The opposite winding directions of the films 202 can symmetrically fit the pulled film strips on the skin on both sides of the wound. This design increases the practicality of the auxiliary device.

[0053] Please refer to Figures 2 to 6 In one embodiment of the present application, film 202 includes a baseband 2021 made of an elastic material, with an adhesive layer 2022 attached to the inner side of baseband 2021. By making baseband 2021 of an elastic material, film 202 can better adapt to the shapes and curves of different body parts. While ensuring a closed wound, the elastic baseband 2021 can also expand and contract with the movement of the limb, preventing film 202 from loosening or falling off due to movement, thereby providing continuous and stable closing pressure on the wound. The adhesive layer 2022 allows the film to firmly adhere to the skin around the wound, ensuring that film 202 will not easily shift during use.

[0054] Please refer to Figures 2 to 7 In one embodiment of the present application, a locking mechanism 300 is provided between the mounting seat 102 and the pressure rod 101, and the locking mechanism 300 includes a mounting groove 301, which is opened on the mounting seat 102, and a through hole 302 is opened inside the mounting groove 301 corresponding to the outer side surface of the pressure rod 101, and a locking lever 303 is rotatably connected inside the mounting groove 301, and one end of the locking lever 303 is fixedly connected to a locking block 304, and the other end of the locking lever 303 is abutted with a spring 305 so that the locking block 304 passes through the through hole 302 and abuts against the pressure rod 101, and the pressure rod 101 is provided with uniformly distributed locking grooves 306 corresponding to the locking block 304.

[0055] During use, the locking mechanism 300 utilizes the compressed state of the spring 305 to apply an elastic force to one end of the locking lever 303, causing the locking lever 303 to rotate about its pivot point, thereby driving the locking block 304 at the other end of the locking lever 303 to move. Under the action of the spring 305, the locking block 304 penetrates the through-hole 302 in the mounting slot 301 and firmly abuts against the locking slot 306 of the pressure rod 101, precisely locking the position of the pressure rod 101 and ensuring the stability of the device. The spring 305 provides sufficient locking force to withstand certain external forces without loosening. The multiple locking slots 306 on the pressure rod 101 provide multiple adjustment levels for the device, allowing the position of the mounting base 102 on the pressure rod 101 to be flexibly adjusted according to the specific wound condition, thus adapting to different wounds. The spring 305 allows the locking block 304 to quickly snap into the locking slot 306, locking the device. The locking block 304 can be unlocked by applying appropriate external force, without the need for complex tools. In addition, the locking mechanism 300 is integrated into the mounting groove 301 on the mounting base 102, which does not take up additional space, thereby improving the practicality and convenience of the device.

[0056] To adjust the position of mounting base 102 on compression rod 101, an external force opposite the direction of the spring 305 is applied to locking lever 303. This external force overcomes the spring 305's force, causing locking lever 303 to rotate, thereby moving locking block 304 away from its current locking groove 306. Mounting base 102 can now be freely moved to the desired position. When the adjustment is complete, the external force is released, and spring 305 pushes locking lever 303 again, causing locking block 304 to find the appropriate locking groove 306 and engage, re-locking compression rod 101.

[0057] Please refer to Figures 2 to 8 In one embodiment of the present application, a suction and injection mechanism 400 is provided between the mounting seat 102 and the top pipe 103. The suction and injection mechanism 400 includes a suction chamber 401 and an injection chamber 402. The suction chamber 401 and the injection chamber 402 are respectively provided on the two mounting seats 102. The suction chamber 401 and the injection chamber 402 are respectively connected to the two ends of the top pipe 103 through the insertion hole 104. A first one-way input valve 40 is provided between the suction chamber 401 and the top pipe 103. 3. A first one-way output valve 404 is provided between the injection chamber 402 and the top pipe 103; a second one-way output valve 405 communicating with the suction chamber 401 is sealedly connected to the mounting base 102 where the suction chamber 401 is located, and a second one-way input valve 406 communicating with the injection chamber 402 is sealedly connected to the mounting base 102 where the injection chamber 402 is located; a discharge pipe 407 is connected to the second one-way output valve 405, and a sealing cover 408 is connected to the second one-way input valve 406.

[0058] During use, after removing the sealing cover 408, the suction mechanism 400 can input liquid medicine into the injection chamber 402 through the second one-way input valve 406, while blocking the discharge of the discharge pipe 407. The medicine injected into the chamber 402 can then be input into the top tube 103 through the first one-way output valve 404. The medicine in the top tube 103 can then enter the wound through the drainage hole 107 provided on the support tube 105 to provide medical treatment to the healing area. The suction mechanism 400 can also allow secretions or residual medicine inside the wound to flow into the suction chamber 401 through the drainage hole 107 provided on the support tube 105, the top tube 103, and the first one-way input valve 403 when the discharge pipe 407 is opened. The secretions or residual medicine in the suction chamber 401 can then be discharged from the discharge pipe 407 through the second one-way output valve 405.

[0059] Please refer to Figures 2 to 8In one embodiment of the present application, a pressure regulating mechanism 500 is provided on the mounting seat 102 corresponding to the suction chamber 401 and the injection chamber 402. The pressure regulating mechanism 500 includes a piston plate 501 that is sealed and slidably connected to the suction chamber 401 or the injection chamber 402. A screw 502 is fixedly connected to the side of the piston plate 501 facing away from the mounting seat 102. Cavity covers 503 are fixedly connected to the two mounting seats 102 corresponding to the suction chamber 401 and the injection chamber 402, respectively. A knob 504 is rotatably connected to the cavity cover 503. A screw hole 505 is opened in the knob 504 corresponding to the screw 502, and the screw 502 and the knob 504 are screwed together through the screw hole 505.

[0060] During use, by turning the knob 504, the screw 502 and the piston plate 501 can be driven to move up and down through the matching connection between the screw hole 505 and the screw 502. By adjusting the position of the piston plate 501, the pressure inside the suction cavity 401 and the injection cavity 402 can be adjusted. In this way, pressure control can not only more stably control the entry of medicine into the wound, but also more accurately and reliably suck out the secretions inside the wound.

[0061] In one embodiment of the present application, mounting base 102 is made of a transparent material, such as polycarbonate (PC), polymethyl methacrylate (PMMA), polyvinyl alcohol (PVA), or the like. This transparent material allows for intuitive and convenient observation of the liquid storage status within aspiration chamber 401 and injection chamber 402, facilitating more intuitive and accurate pressure adjustment.

[0062] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A skin closure auxiliary device, characterized in that: The invention comprises a subcutaneous abutting mechanism (100), wherein a part of the subcutaneous abutting mechanism (100) is buried inside the wound, and a part of the subcutaneous abutting mechanism (100) exposed outside the wound is provided with an on-skin abutting mechanism (200), and the on-skin abutting mechanism (200) is attached to the skin outside the wound.

2. A skin closure auxiliary device according to claim 1, characterized in that: The subcutaneous pressing mechanism (100) comprises a pressure rod (101), the on-skin pressing mechanism (200) is arranged on the pressure rod (101), and two symmetrically arranged mounting seats (102) are connected to the pressure rod (101) near the two ends, and the mounting seats (102) are respectively fitted to the two ends of the wound, and a push tube (103) is provided between the two mounting seats (102), and the middle part of the push tube (103) is pressed against the inside of the wound in an arc shape, and a socket (104) is provided on the mounting seat (102) corresponding to the push tube (103), and the two ends of the push tube (103) are respectively and detachably inserted into the sockets (104) on the two mounting seats (102).

3. A skin closure auxiliary device according to claim 2, characterized in that: The leather-attaching mechanism (200) comprises a winding tube (201), wherein the winding tube (201) is mounted on the pressure rod (101), and a plurality of film rolls (202) are wound on the outer side of the winding tube (201), wherein the winding directions of two adjacent film rolls (202) are opposite, and the ends of the film rolls (202) with the same winding direction and away from the winding tube (201) are fixedly connected with a connecting strip (203).

4. A skin closure auxiliary device according to claim 3, characterized in that: Both ends of the top tube (103) exposed to the outside of the wound are provided with protective patches (204), the protective patches (204) are adhered to the outside of the wound, and a dressing and an adhesive are provided on a side of the protective patch (204) close to the wound, the adhesive being provided on the outside of the dressing.

5. The skin closure auxiliary device according to claim 3, characterized in that: The film roll (202) comprises a base tape (2021), the base tape (2021) is made of an elastic material, and an adhesive layer (2022) is attached to the inner side of the base tape (2021).

6. The skin closure auxiliary device according to claim 2, characterized in that: A locking mechanism (300) is provided between the mounting seat (102) and the pressure rod (101), the locking mechanism (300) comprising a mounting groove (301) provided on the mounting seat (102), a through hole (302) provided inside the mounting groove (301) corresponding to the outer side surface of the pressure rod (101), a locking lever (303) rotatably connected inside the mounting groove (301), a locking block (304) fixedly connected to one end of the locking lever (303), the locking block (304) passing through the through hole (302), a spring (305) abuttingly connected to the other end of the locking lever (303), the spring (305) pushing the locking lever (303) so that the locking block (304) abuts against the pressure rod (101).

7. The skin closure auxiliary device according to claim 2, characterized in that: The top pipe (103) is fixedly and sealedly connected to a support pipe (105) on the inner side surface of the arc; the support pipe (105) is symmetrically arranged on the top pipe (103); a sealing block (106) is sealedly connected to the middle of the top pipe (103); and a plurality of evenly distributed drainage holes (107) are provided on the support pipe (105).

8. The skin closure auxiliary device according to claim 7, characterized in that: An injection mechanism (400) is provided between the mounting seat (102) and the jacking pipe (103), the injection mechanism (400) comprising an aspiration chamber (401) and an injection chamber (402), the aspiration chamber (401) and the injection chamber (402) being respectively provided on the two mounting seats (102), the aspiration chamber (401) and the injection chamber (402) being respectively connected in a sealed manner to the two ends of the jacking pipe (103) via the insertion hole (104), and a first one-way input valve (403) being provided between the aspiration chamber (401) and the jacking pipe (103). A first one-way output valve (404) is provided between the injection chamber (402) and the top pipe (103); a second one-way output valve (405) communicating with the suction chamber (401) is sealedly connected to the mounting seat (102) where the suction chamber (401) is located, and a second one-way input valve (406) communicating with the injection chamber (402) is sealedly connected to the mounting seat (102) where the injection chamber (402) is located; a discharge pipe (407) is connected to the second one-way output valve (405), and a sealing cover (408) is connected to the second one-way input valve (406).

9. The skin closure auxiliary device according to claim 8, characterized in that: The mounting seat (102) is provided with a pressure regulating mechanism (500) corresponding to the suction chamber (401) and the injection chamber (402). The pressure regulating mechanism (500) comprises a piston plate (501) sealingly and slidably connected to the suction chamber (401) or the injection chamber (402). A screw rod (502) is fixedly connected to the side of the piston plate (501) facing away from the mounting seat (102). Chamber covers (503) are fixedly connected to the two mounting seats (102) respectively corresponding to the suction chamber (401) and the injection chamber (402). A knob (504) is rotatably connected to the chamber cover (503). A screw hole (505) is provided in the knob (504) corresponding to the screw rod (502). The screw rod (502) and the knob (504) are screwed together through the screw hole (505).

10. A skin closure auxiliary device according to any one of claims 1 to 9, characterized in that: The part of the subcutaneous closing mechanism (100) buried inside the wound is made of biodegradable materials.

Images