Preparation process of wound closure repair component and distraction device adapter membrane

Abstract

The present invention provides a preparation process of a wound closure repair component and a stretcher adapter film, which relates to the technical field of medical devices, and includes: a first fixed body and a stretcher adapter component; the first fixed body is used to be fixed on human skin, and a fixing groove is formed between the first fixed body and the human skin; the stretcher adapter component has a wound contact layer, and the stretcher adapter component can be inserted into the fixing groove so that the wound contact layer fits on the human skin wound. By fixing the first fixed body on human skin, the stretcher adapter component is inserted into the fixing groove formed between the first fixed body and the human skin, so that the wound contact layer on the stretcher adapter component is moved to the wound position and covers the human wound position, which alleviates the technical problem that the wound care film in the prior art is difficult to directly care on the skin, and the wound care film can only be covered on the stretcher, which has the risk of infection.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a preparation process of a wound closure repair component and a stretcher adapter film. Background Art

[0002] External factors such as external force, heat, electric current, and chemical reagents, as well as internal factors such as local blood supply disorders, can all lead to local skin tissue deficiency. In clinical practice, the traditional treatment for large wounds is to repair them by covering the wound surface with skin flaps or skin grafts. However, the above methods have the disadvantages of causing new damage to the donor area, differences in skin color and thickness between the donor area and the recipient, and a high rate of surgical failure.

[0003] Skin stretching is a new method for repairing skin tissue. It mainly uses the extensibility of the skin to pull the skin around the wound toward the center with the help of an external stretcher, gradually reducing the wound surface, and finally suturing the wound. This method is easy to implement, less traumatic, and has fewer complications. It avoids the implantation of foreign skin and the troubles caused by the matching of donor and recipient skin in traditional treatment methods, and has achieved good clinical results. Skin stretching is mainly implemented with the help of a stretcher. It is usually used by inserting a fixed needle into the skin on both sides of the wound and using traction materials to pull the fixed positions toward each other.

[0004] However, after the existing stretcher is installed, it is difficult to directly care for the skin with the wound care film, and the wound care film can only be covered on the stretcher, which increases the difficulty of wound care and the probability of wound infection. Summary of the invention

[0005] The purpose of the present invention is to provide a preparation process of a wound closure repair component and a stretcher adapter film, so as to alleviate the technical problem in the prior art that the wound care film is difficult to directly care for the skin and can only be covered on the stretcher, which poses a risk of infection.

[0006] In a first aspect, the present invention provides a wound closure repair assembly, comprising: a first fixing body and a distractor adapter component;

[0007] The first fixing body is used to be fixed on human skin, and a fixing groove is formed between the first fixing body and the human skin;

[0008] The stretcher adapter component has a stretcher adapter membrane, and the stretcher adapter component can extend into the fixing groove so that the stretcher adapter membrane fits on the human skin wound.

[0009] In an alternative embodiment,

[0010] The wound closure repair assembly also includes a second fixing body;

[0011] The second fixing body is arranged parallel to one side of the first fixing body, and the fixing groove is formed between the first fixing body, the second fixing body and human skin.

[0012] In an alternative embodiment,

[0013] The wound closure repair assembly also includes an adjustment member;

[0014] Two ends of the adjusting member are respectively connected to the first fixing body and the second fixing body, and the adjusting member is configured to be able to adjust the distance between the first fixing body and the second fixing body.

[0015] In an alternative embodiment,

[0016] The adjusting member comprises a first fixing member, a second fixing member and an adjusting belt;

[0017] The first fixing member is arranged on the first fixing body, the second fixing member is arranged on the second fixing body, and two ends of the adjusting belt are respectively slidably connected with the first fixing member and the second fixing member.

[0018] In an alternative embodiment,

[0019] A first medical adhesive is provided between the first fixing member and the first fixing body, and the first fixing member is fixed to the first fixing body by the first medical adhesive.

[0020] In an alternative embodiment,

[0021] The distractor adapter member includes a traction belt;

[0022] The traction belt is connected to the stretcher adapter membrane, and the stretcher adapter membrane has a wound contact layer on a side close to human skin;

[0023] A liquid absorption layer and a barrier layer are sequentially arranged on the side of the stretcher adapter film away from human skin.

[0024] In an alternative embodiment,

[0025] The distractor adapter member further includes a second medical glue;

[0026] The second medical adhesive is arranged between the traction belt and the stretcher adaptor membrane, and the traction belt is connected to the stretcher adaptor membrane through the second medical adhesive.

[0027] In an alternative embodiment,

[0028] The first fixing body comprises a fixing portion and an abutting portion;

[0029] The fixing portion is connected to the abutting portion, the fixing portion is fixed on human skin, and the fixing groove is formed between the abutting portion and the human skin.

[0030] In an alternative embodiment,

[0031] The wound closure repair assembly also includes a third medical glue;

[0032] The fixing part is fixed on human skin through the third medical adhesive.

[0033] In a second aspect, the present invention provides a process for preparing a stretcher adapter membrane, comprising the following steps:

[0034] Dissolving polyurethane in an organic reagent, stirring at room temperature for 2-48 hours, to obtain a polyurethane solution with a mass fraction of 5-14wt%;

[0035] The polyurethane solution flow rate is set to 0.1-5 ml / h, the voltage is 15-45 KV, and the receiving distance is 10-30 cm to obtain a polyurethane polymer membrane with a pore size of 50-500 nm;

[0036] The polyurethane polymer film is placed in an oven at 60-100° C. for heat treatment for 10-60 minutes to reduce the pore size of the polyurethane polymer film to obtain a barrier layer, and the barrier layer is bonded to the liquid absorption layer;

[0037] Dissolving polyurethane and collagen in hexafluoroisopropanol at a mass fraction ratio of 10:1-1:1, stirring at room temperature for 2-48 hours, to obtain a solution with a total mass fraction of polyurethane and collagen of 5-14wt%;

[0038] The flow rate of the polyurethane and collagen solution is set to 0.1-5 ml / h, the voltage is 15-45 KV, and the receiving distance is 10-30 cm to obtain a wound contact layer with a pore size of 1-15 um, and the wound contact layer is bonded to the liquid absorption layer.

[0039] The present invention provides a wound closure repair component, comprising: a first fixing body and a distractor adapter component; the first fixing body is used to fix on human skin, and a fixing groove is formed between the first fixing body and the human skin; the distractor adapter component has a distractor adapter membrane, and the distractor adapter component can be inserted into the fixing groove so that the distractor adapter membrane fits on the human skin wound. By fixing the first fixing body on human skin, the distractor adapter component is inserted into the fixing groove formed between the first fixing body and the human skin, so that the distractor adapter membrane on the distractor adapter component is moved to the wound position and covers the wound position of the human body, which alleviates the technical problem that the wound care membrane in the prior art is difficult to directly care on the skin, and the wound care membrane can only be covered on the distractor, which has the risk of infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A schematic diagram of the overall structure of a wound closure repair assembly provided by an embodiment of the present invention;

[0042] Figure 2 A schematic diagram of the structure of a wound closure repair assembly provided by an embodiment of the present invention from a first viewing angle;

[0043] Figure 3 A schematic diagram of the structure of a stretcher adapter membrane in a wound closure repair assembly provided in an embodiment of the present invention.

[0044] Icons: 100-first fixed body; 110-fixing part; 120-abutting part; 200-distractor adapter member; 210-traction belt; 220-distractor adapter membrane; 221-wound contact layer; 222-liquid absorption layer; 223-barrier layer; 300-second fixed body; 400-adjusting member; 410-first fixing piece; 420-second fixing piece; 430-adjusting belt; 500-first medical glue; 600-second medical glue; 700-third medical glue. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0048] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0049] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0052] like Figure 1 As shown, the wound closure repair component provided in this embodiment includes: a first fixing body 100 and a stretcher adapter component 200; the first fixing body 100 is used to be fixed on human skin, and a fixing groove is formed between the first fixing body 100 and the human skin; the stretcher adapter component 200 has a stretcher adapter membrane 220, and the stretcher adapter component 200 can extend into the fixing groove so that the stretcher adapter membrane 220 fits on the human skin wound.

[0053] Specifically, the first fixed body 100 is attached to the human skin. It should be noted that the attachment position of the first fixed body 100 should be staggered with the human wound position. After the first fixed body 100 is fixed on the human skin, a fixing groove is formed between the extended edge extending from the top of the first fixed body 100 and the human skin. When the wound position needs to be cared for, the tensioner adapter component 200 extends into the fixing groove, moves along the fixing groove, and slowly moves the wound contact layer 221 to the human wound position, so that the wound contact layer 221 is attached to the human wound position.

[0054] The wound closure repair assembly provided in this embodiment includes: a first fixing body 100 and a distractor adapter member 200; the first fixing body 100 is used to be fixed on human skin, and a fixing groove is formed between the first fixing body 100 and the human skin; the distractor adapter member 200 has a distractor adapter membrane 220, and the distractor adapter member 200 can be inserted into the fixing groove so that the distractor adapter membrane 220 fits on the human skin wound. By fixing the first fixing body 100 on human skin, and the distractor adapter member 200 is inserted into the fixing groove formed between the first fixing body 100 and the human skin, the wound contact layer 221 on the distractor adapter member 200 is moved to the wound position and covers the human wound position, which alleviates the technical problem that the wound care membrane in the prior art is difficult to directly care on the skin, and the wound care membrane can only be covered on the distractor, which has the risk of infection.

[0055] Based on the above embodiment, in an optional implementation manner, as Figure 2 As shown, the first viewing angle is looking directly at the first fixed body 100. The wound closure repair assembly provided in this embodiment also includes a second fixed body 300; the second fixed body 300 is arranged parallel to one side of the first fixed body 100, and a fixing groove is formed between the first fixed body 100, the second fixed body 300 and the human skin.

[0056] Specifically, the second fixed body 300 is attached to the human skin, and the second fixed body 300 is arranged parallel to the first fixed body 100. The positions of the first fixed body 100 and the second fixed body 300 can also be selected according to specific circumstances to ensure that the first fixed body 100 and the second fixed body 300 are respectively located on both sides of the human wound.

[0057] A fixing groove is formed between the second fixing body 300 and the human skin, and both sides of the distractor adapter component 200 move along the two fixing grooves to fit the wound contact layer 221 to the wound position of the human body.

[0058] In an optional embodiment, the wound closure repair assembly further includes an adjusting member 400 ; both ends of the adjusting member 400 are respectively connected to the first fixed body 100 and the second fixed body 300 , and the adjusting member 400 is configured to be able to adjust the distance between the first fixed body 100 and the second fixed body 300 .

[0059] Specifically, one end of the adjusting member 400 is connected to the first fixed body 100, and the other end of the adjusting member 400 is connected to the second fixed body 300. By changing the overall length of the adjusting member 400 between the first fixed body 100 and the second fixed body 300, the distance between the first fixed body 100 and the second fixed body 300 is adjusted.

[0060] In an optional embodiment, the adjusting member 400 includes a first fixing member 410, a second fixing member 420 and an adjusting belt 430; the first fixing member 410 is arranged on the first fixing body 100, the second fixing member 420 is arranged on the second fixing body 300, and the two ends of the traction belt 210 are respectively slidably connected to the first fixing member 410 and the second fixing member 420.

[0061] Specifically, a first fixing member 410 and a second fixing member 420 are respectively provided on the first fixing body 100 and the second fixing body 300. The first fixing member 410 is detachably connected to the first fixing body 100, and the second fixing member 420 is detachably connected to the second fixing body 300. After the position of the first fixing member 410 on the first fixing body 100 is determined, the first fixing member 410 is fixed to the first fixing body 100. Similarly, the second fixing member 420 is fixed after its position is determined.

[0062] The adjustment belt 430 can be specifically set as a cable tie, and the first fixed body 100 and the second fixed body 300 are fixed heads in the cable tie. The fixed heads move unidirectionally on the cable tie. By tightening the cable tie, the positions of the two fixed heads are adjusted to change the distance between the first fixed body 100 and the second fixed body 300.

[0063] In an optional embodiment, a first medical adhesive 500 is disposed between the first fixing member 410 and the first fixing body 100 , and the first fixing member 410 is fixed to the first fixing body 100 by the first medical adhesive 500 .

[0064] Specifically, a first medical glue 500 is disposed between the first fixing member 410 and the first fixing body 100. Similarly, a first medical glue 500 is disposed between the second fixing member 420 and the second fixing body 300. The first medical glue 500 is used to fix the first fixing member 410 on the first fixing body 100, and disassembly is facilitated.

[0065] The wound closure repair assembly provided in this embodiment changes the distance between the first fixing body 100 and the second fixing body 300 by moving the adjustment belt 430 on the first fixing member 410 and the second fixing member 420, thereby improving the applicability of the wound closure repair assembly.

[0066] At present, when using a distractor, a wound care membrane is often used with gauze. The advantage of a gauze wound care membrane is that it can quickly absorb wound exudate. However, there are also disadvantages that cannot be ignored:

[0067] 1. Gauze has large pores, and microorganisms can easily pass through, causing cross infection.

[0068] 2. Gauze is highly permeable and may cause wound dehydration.

[0069] 3. The gauze will stick to the wound and cause damage when it is replaced again.

[0070] The self-matching of wound care films increases the uncertainty when different operators perform wound care, which in turn affects the distractor's ability to fully exert its skin repair effect.

[0071] Based on the above embodiments, Figure 3 As shown, in an optional embodiment, the stretcher adapter component 200 in the wound closure repair component provided in this embodiment includes a traction belt 210; the traction belt 210 is connected to the stretcher adapter membrane 220, and the side of the stretcher adapter membrane 220 close to the human skin has a wound contact layer 221; the side of the stretcher adapter membrane 220 away from the human skin is sequentially provided with a liquid absorption layer 222 and a barrier layer 223.

[0072] Specifically, the traction belt 210 is located on both sides of the distractor adapter film 220. When in use, the medical staff holds the traction belt 210 to drive the distractor adapter film 220 to move, and fits the distractor adapter film 220 on the wound of the human body.

[0073] In an optional embodiment, the distractor adapter component 200 further includes a second medical adhesive 600 ; the second medical adhesive 600 is disposed between the traction belt 210 and the distractor adapter membrane 220 , and the traction belt 210 is connected to the distractor adapter membrane 220 via the second medical adhesive 600 .

[0074] Specifically, the second medical adhesive 600 is disposed between the traction belt 210 and the distractor adaptor membrane 220 , and the traction belt 210 and the distractor adaptor membrane 220 are connected by the second medical adhesive 600 .

[0075] In an optional embodiment, the first fixing body 100 includes a fixing portion 110 and an abutting portion 120; the fixing portion 110 and the abutting portion 120 are connected, the fixing portion 110 is fixed on human skin, and a fixing groove is formed between the abutting portion 120 and the human skin.

[0076] Specifically, the fixing portion 110 is attached to the human skin, and the contact portion 120 is disposed on the top of the fixing portion 110 . After the fixing portion 110 is fixed, there is a gap between the contact portion 120 and the human skin to form a fixing groove.

[0077] In an optional embodiment, the wound closure repair component further includes a third medical adhesive 700 ; the fixing portion 110 is fixed to the human skin via the third medical adhesive 700 .

[0078] Specifically, a third medical adhesive 700 is disposed between the fixing portion 110 and the human skin, and the fixing portion 110 is fixed to the human skin by the third medical adhesive 700, so that the fixing portion 110 is conveniently removed from the human skin.

[0079] The wound closure repair assembly provided in this embodiment drives the stretcher adapter film 220 to move through the traction belt 210, and moves the stretcher adapter film 220 along the fixing groove to the wound position of the human body to care for the wound.

[0080] The preparation process of the stretcher adapter membrane provided in this embodiment comprises the following steps: dissolving polyurethane in an organic reagent, stirring at room temperature for 2-48 hours, and obtaining a polyurethane solution with a mass fraction of 5-14wt%; setting the flow rate of the polyurethane solution to 0.1-5ml / h, the voltage to 15-45KV, and the receiving distance to 10-30cm, and obtaining a polyurethane polymer membrane with a pore size of 50-500nm; placing the polyurethane polymer membrane in an oven at 60-100°C for heat treatment for 10-60min to reduce the pore size of the polyurethane polymer membrane, and obtaining a barrier layer 2 23, and bonding the barrier layer 223 to the liquid absorption layer 222; dissolving the polyurethane and collagen in hexafluoroisopropanol in a mass fraction ratio of 10:1-1:1, stirring at room temperature for 2-48 hours, and obtaining a solution with a total mass fraction of polyurethane and collagen of 5-14wt%; setting the flow rate of the polyurethane and collagen solution to 0.1-5ml / h, the voltage to 15-45KV, and the receiving distance to 10-30cm, obtaining a wound contact layer 221 with a pore size of 1-15um, and bonding the barrier layer 223 to the liquid absorption layer 222.

[0081] Specifically, the middle layer of the stretcher is the liquid absorption layer 222, which is a polymer layer that plays a role in absorbing and draining liquid. This layer is a polyurethane sponge. After a layer of glue is coated on one side of the liquid absorption layer 222, a polyurethane solution is spun on this layer by electrospinning technology.

[0082] The preparation process of the polyurethane solution is as follows: dissolving the polyurethane in an organic reagent, stirring at room temperature for 2-48 hours, and obtaining a polyurethane solution with a mass fraction of 5-14wt%, wherein the organic solvent is one or a mixed solvent of tetrahydrofuran, dimethyl sulfoxide, N,N-dimethylformamide, chloroform, dichloromethane, and hexafluoroisopropanol.

[0083] The electrospinning conditions of polyurethane solution are as follows: spinning solution flow rate is 0.1-5ml / h, voltage is 15-45KV, and receiving distance is 10-30cm.

[0084] The dense polyurethane polymer membrane with a pore size of 50-500nm is obtained by electrospinning, and then the spun material is placed in an oven at 60-100°C for heat treatment for 10-60min to further reduce the pore size of the dense polyurethane polymer membrane. The polyurethane polymer membrane obtained after the heat treatment is the barrier layer 223. This layer mainly plays the role of isolating bacteria and waterproofing.

[0085] After a layer of glue is coated on the other side of the liquid absorption layer 222, a polyurethane solution loaded with collagen is spun on the layer by electrostatic spinning technology. The loaded collagen has effective ingredients that can promote wound healing.

[0086] The preparation process of the solution is as follows: polyurethane and collagen are dissolved in hexafluoroisopropanol in a ratio of 10:1-1:1 by mass, and stirred at room temperature for 2-48 hours to obtain a solution with a total mass fraction of polyurethane and collagen of 5-14wt%.

[0087] The electrospinning conditions are as follows: the spinning solution flow rate is 0.1-5 ml / h, the voltage is 15-45 KV, and the receiving distance is 10-30 cm.

[0088] Electrospinning forms a polymer membrane with a pore size of 1-15 um, which is the wound contact layer 221, that is, the part close to the skin, and mainly plays the role of preventing adhesion and promoting healing.

[0089] The specific preparation process is as follows: a layer of glue is coated on one side of the liquid absorption layer 222, polyurethane is dissolved in an organic reagent, and stirred at room temperature for 12 hours to obtain a polyurethane solution with a mass fraction of 10 wt%, and the organic solvent is tetrahydrofuran.

[0090] The electrospinning conditions of polyurethane solution are as follows: the spinning solution flow rate is 1 ml / h, the voltage is 30 KV, and the receiving distance is 15 cm.

[0091] After spinning, the material is placed in an oven at 90° C. for heat treatment for 30 minutes to further reduce the pore size of the dense polyurethane polymer membrane. The polyurethane polymer membrane obtained after heat treatment is the barrier layer 223, and the barrier layer 223 is bonded to the liquid absorption layer 222.

[0092] Polyurethane and collagen were dissolved in hexafluoroisopropanol at a ratio of 10:1, and stirred at room temperature for 12 hours to obtain a solution in which the total mass fraction of polyurethane and collagen was 12 wt %.

[0093] The electrospinning conditions are as follows: the spinning solution flow rate is 0.5 ml / h, the voltage is 30 KV, and the receiving distance is 15 cm.

[0094] This layer is a wound contact layer 221 , which is bonded to the liquid absorption layer 222 .

[0095] In addition, polyurethane can also be dissolved in an organic reagent and stirred at room temperature for 12 hours to obtain a solution with a mass fraction of 8wt% of polyurethane, and the organic solvent is a mixed solution of tetrahydrofuran and N,N-dimethylformamide, and the mass ratio of the two is 1:3; the electrospinning conditions of the polyurethane solution are as follows: the spinning solution flow rate is 1ml / h, the voltage is 28KV, and the receiving distance is 15cm; after the spinning is completed, the material is placed in an oven at 80°C for heat treatment for 40min to further reduce the pore size of the dense polyurethane polymer membrane to obtain a barrier layer 223; polyurethane and collagen are dissolved in hexafluoroisopropanol in a ratio of 5:1, stirred at room temperature for 12 hours, and a solution with a total mass fraction of polyurethane and collagen of 10wt% is obtained. The electrospinning conditions are as follows: the spinning solution flow rate is 0.3ml / h, the voltage is 30KV, and the receiving distance is 15cm to obtain a wound contact layer 221.

[0096] For another example: polyurethane is dissolved in an organic reagent and stirred at room temperature for 12 hours to obtain a solution with a mass fraction of 12wt% of polyurethane, the organic solvent is a mixed solution of tetrahydrofuran and N,N-dimethylformamide, and the mass ratio of the two is 1:1; the electrospinning conditions of the polyurethane solution are as follows: the spinning solution flow rate is 1ml / h, the voltage is 30KV, and the receiving distance is 15cm; after spinning, the material is placed in an oven at 90°C for heat treatment for 40min to further reduce the pore size of the dense polyurethane polymer membrane. The polyurethane polymer membrane obtained after heat treatment is the barrier layer 223; polyurethane and collagen are dissolved in hexafluoroisopropanol at a ratio of 1:1, stirred at room temperature for 12 hours, and a solution with a total mass fraction of polyurethane and collagen of 8wt% is obtained; the electrospinning conditions are as follows: the spinning solution flow rate is 0.1ml / h, the voltage is 30KV, and the receiving distance is 15cm, and the wound contact layer 221 is obtained.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wound closure repair component, characterized in that: include: A first fixing body (100) and a distractor adapter component (200); The first fixing body (100) is used to be fixed on human skin, and a fixing groove is formed between the first fixing body (100) and the human skin; The distractor adaptor component (200) has a distractor adaptor membrane (220), and the distractor adaptor component (200) can extend into the fixing groove so that the distractor adaptor membrane (220) fits on a human skin wound; The wound closure repair assembly further comprises a second fixing body (300); The second fixing body (300) is arranged in parallel on one side of the first fixing body (100), and the fixing groove is formed between the first fixing body (100), the second fixing body (300) and human skin; The distractor adapter component (200) comprises a traction belt (210); The traction belt (210) is connected to the stretcher adapter membrane (220), and the stretcher adapter membrane (220) has a wound contact layer (221) on a side close to human skin; A liquid absorption layer (222) and a barrier layer (223) are sequentially arranged on the side of the stretcher adaptor membrane (220) away from human skin; The first fixing body (100) comprises a fixing portion (110) and an abutting portion (120); The fixing portion (110) and the abutting portion (120) are connected; the fixing portion (110) is fixed on human skin; and the fixing groove is formed between the abutting portion (120) and the human skin.

2. The wound closure repair assembly according to claim 1, characterized in that: The wound closure repair assembly further comprises an adjustment member (400); Two ends of the adjusting member (400) are respectively connected to the first fixing body (100) and the second fixing body (300), and the adjusting member (400) is configured to be able to adjust the distance between the first fixing body (100) and the second fixing body (300).

3. The wound closure repair assembly according to claim 2, characterized in that: The adjustment member (400) comprises a first fixing member (410), a second fixing member (420) and an adjustment belt (430); The first fixing member (410) is arranged on the first fixing body (100), the second fixing member (420) is arranged on the second fixing body (300), and two ends of the adjustment belt (430) are respectively slidably connected to the first fixing member (410) and the second fixing member (420).

4. The wound closure repair assembly according to claim 3, characterized in that: A first medical adhesive (500) is provided between the first fixing member (410) and the first fixing body (100), and the first fixing member (410) is fixed to the first fixing body (100) by means of the first medical adhesive (500).

5. The wound closure repair assembly according to claim 1, characterized in that: The distractor adapter component (200) further includes a second medical glue (600); The second medical adhesive (600) is arranged between the traction belt (210) and the distractor adaptor membrane (220), and the traction belt (210) is connected to the distractor adaptor membrane (220) via the second medical adhesive (600).

6. The wound closure repair assembly according to claim 1, characterized in that: The wound closure repair assembly further includes a third medical glue (700); The fixing portion (110) is fixed to human skin via the third medical adhesive (700).

7. The wound closure repair assembly according to claim 1, characterized in that: The preparation process of the stretcher adapter film comprises the following steps: Dissolve the polyurethane in an organic reagent, and stir at room temperature for 2-48 hours to obtain a polyurethane solution with a mass fraction of 5-14wt%; The polyurethane solution flow rate is set to 0.1-5 ml / h, the voltage is 15-45 KV, and the receiving distance is 10-30 cm to obtain a polyurethane polymer membrane with a pore size of 50-500 nm; The polyurethane polymer film is placed in an oven at 60-100° C. for heat treatment for 10-60 minutes to reduce the pore size of the polyurethane polymer film to obtain a barrier layer (223), and the barrier layer (223) is bonded to the liquid absorption layer (222); Dissolve polyurethane and collagen in hexafluoroisopropanol at a mass fraction ratio of 10:1-1:1, and stir at room temperature for 2-48 hours to obtain a solution with a total mass fraction of polyurethane and collagen of 5-14wt%; The flow rate of the polyurethane and collagen solution is set to 0.1-5 ml / h, the voltage is 15-45 KV, and the receiving distance is 10-30 cm to obtain a wound contact layer (221) with a pore size of 1-15 um, and the wound contact layer (221) is bonded to the liquid absorption layer (222).

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