CN216628623U - Wound closure device - Google Patents

Abstract

The utility model discloses a wound closure device, which belongs to the field of medical supplies, and provides a wound closure device which is not easy to cause skin damage and is not easy to fall off. A skin adhesive piece and a wound closure device arranged between the two skin adhesive components and connected with the two skin adhesive components respectively, the skin adhesive component includes a main body adhesive layer connected with the wound closure device and a The flexible adhesive portion of the peripheral edge of the layer or the entire circumference of the edge. The utility model solves the problem that the skin sticker not only has good tensile force bearing and dispersing properties, but also can flexibly adapt to the dynamic changes of the complexity of the multiple curved surfaces of the wound, so as to maintain the effectiveness and firmness of the sticking; therefore, especially It is suitable for sticking wounds on special active parts of the human body composed of multiple curved surfaces or splicing planes.

Description

wound closure

technical field

The utility model relates to the field of medical supplies, in particular to a wound closure device.

Background technique

A wound closure device, also known as a wound stapler, a wound healing device or a wound closure device, is a device used to close a wound to promote wound healing. A common wound closure device uses a tensioning member that is pulled on both sides of the wound to draw together the skin stickers attached to the skin on both sides of the wound, thereby driving the wound skin edges of the skin on both sides of the wound to draw and close to the middle. However, the conventional wound closure device is only suitable for the adhesive closure of wounds on both sides of the wound, such as the abdomen and back of the human body, which are roughly in the same relatively static plane; Wounds composed of flattened surfaces in a plane, such as wounds in special parts of the human body: such as maxillofacial, head and neck, breast, armpit, knee, elbow, limb joints and other active site wounds. Because the skin adhesive surfaces on both sides of the wound in such special parts of the human body are usually composed of multiple curved surfaces or multiple flat surfaces that are not in the same plane, the skin adhesive surfaces on both sides of the incision cannot be included in the same static in a single overall plane. Moreover, the relative position, movement direction, and angle changes of each individual pieced surface are different when the human body moves, all of which are in high-frequency asynchronous movement changes, resulting in the entire skin sticker composed of a single structure. Asynchronous movement between two independent splicing surfaces, when the direction of movement between any two adjacent splicing surfaces is not synchronized, it will cause local peeling of the skin stickers on the two adjacent splicing surfaces, resulting in Warping, falling off, pasting failure. At this time, if the whole skin sticker composed of a single structure is set to be very flexible, its function of bearing, dispersing and transmitting the pulling force of the puller will be significantly weakened; if the flexibility disappears, it will not be able to adapt or buffer multiple independent splicing surfaces. The asynchronous movement between them is more likely to cause the skin paste to peel off or fall off from the adjacent spliced surfaces, and it is impossible to ensure the effectiveness and firmness of the paste, and it is easy to fall off and fail. At the same time, due to the fact that the tensile force it bears cannot be uniformly dispersed or properly buffered, the tensile force is locally gathered, which is very likely to cause skin injuries such as skin strain and tension skin blisters. Clinically effective closure of site wounds.

Utility model content

The technical problem solved by the utility model is to provide a wound closure device that is not easy to cause skin pulling damage, and is not easy to lift and fall off.

The technical scheme adopted by the utility model to solve the technical problem is: a wound closure device, comprising two skin stickers for connecting with the skin surfaces on both sides of the wound, and two skin stickers arranged between the two skin stickers and connected to the two skin stickers respectively. A wound closure connected with a skin adhesive member, the skin adhesive member comprising a main body adhesive layer connected with the wound closure device and a flexible adhesive part connected at the edge of the outer peripheral part of the main body adhesive layer or the edge of the whole circle.

Further, the main body adhesive layer is an inflexible adhesive layer.

Further, the main body adhesive layer is in a sheet shape, the main body adhesive layer is resistant to stretching in the plane direction, and can be bent in the plane vertical direction.

Further, the structure of the main body sticking layer includes a main body sticking layer and a finger-like sticking part extending in the outer direction, the main body sticking layer is in the shape of a strip, and its long axis is parallel to the wound; The other ends of the finger-like sticking parts are arranged to extend outward toward the direction away from the wound side, and the finger-like sticking parts are arranged at intervals along the edge of the main body sticking layer facing away from the wound side.

Further, the flexible sticking portion is a skirt structure distributed along the outer peripheral edge of the main body sticking layer or the entire edge, and the flexible sticking portion and the main body sticking layer are connected by bonding, splicing or wrapping integrated molding.

Further: the skin sticking piece further includes a flexible sticking layer, the area of the flexible sticking layer is larger than the area of the main sticking layer and extends beyond the outer peripheral edge of the sticking layer of the main body; the flexible sticking part is extended beyond the flexible sticking layer. Part of the main body adhesive layer.

Further: the main body adhesive layer is arranged on the upper surface of the flexible adhesive layer; or the main body adhesive layer is arranged on the lower surface of the flexible adhesive layer; or the main body adhesive layer is sandwiched between two flexible adhesive layers; or The flexible adhesive layer is sandwiched between the two main body adhesive layers.

Further, the flexible adhesive layer is a flexible adhesive film of hydrogel, silica gel, rubber material or polyurethane material with tensile elasticity and bending deformation ability.

Further, a hardened base tape is arranged on the main body sticking layer, the hardened base tape is arranged on the side of the main body sticking layer close to the wound, and the hardened base tape is connected with the wound puller.

Further, the settings of the flexible sticking part include the following three types:

The first type is that a flexible sticking part is only provided on the distal edge of the wound of the sticking layer of the main body;

In the second type, flexible sticking parts are only provided on the wound distal and proximal wound edges of the adhesive layer of the main body, and the width of the flexible sticking part located on the far side of the wound is not less than the width of the flexible sticking part located on the proximal side of the wound; The thickness of the flexible sticking portion on the far side of the wound is not greater than the thickness of the flexible sticking portion on the proximal side of the wound;

The third type is to set a circle of flexible sticking parts on the outer periphery of the main body sticking layer, and the width of the flexible sticking part located on the far side of the wound is not less than the width of the flexible sticking part located on the proximal side of the wound. The width of the sticking portion is not smaller than the width of the flexible sticking portion located on the remaining two sides; meanwhile, the thickness of the flexible sticking portion located on the far side of the wound is not greater than the thickness of the flexible sticking portion located on the proximal side of the wound.

Further, the wound closure device includes a central fixing piece, a side fixing piece and a tensioning piece; two side fixing pieces are provided, and the two side fixing pieces are respectively connected with the two skin sticking pieces one by one. Correspondingly connected; the middle fixing piece is arranged between the two side fixing pieces and is located above the wound; the middle fixing piece and the side fixing pieces on both sides are connected together by a tensioning piece; the tensioning piece includes a tensioning piece A strip and a brace fastener; wherein one end of the brace is a fixed end, and the other end of the brace is a free end, the fixed end is arranged on a central fastener or a side fastener, and the free end can be pulled The strip fixing member is fixed to the middle fixing member, the side fixing member or the skin sticking member; the tensioning member further includes a pulling rod guiding limiter and/or a pulling rod turning limiter which is arranged on the middle fixing member or the side fixing member. is placed on the fixing member; the guide limiter of the stay is provided with a “door frame-shaped” or “flat-mouth” through guide limit structure, and the free end of the stay passes through the guide limit structure; the The free end of the stay is turned 180 degrees around the turn-back limiter of the stay and then folded back.

Further, the two side fixing pieces are respectively the side fixing piece on the first side and the side fixing piece on the second side; the setting of the tension piece includes at least the following four types:

In the first type, the fixed end of the brace is arranged on the side fixing member on the first side, and the free end of the brace is guided to the limiter by the brace arranged on the middle fixing member and the side fixing member arranged on the second side. After the brace on the fixing piece guides the limiting piece, the brace fixing piece is fixed to the side fixing piece on the second side or the skin sticking piece on the side;

In the second type, the fixed end of the stay is set on the side fixing member on the first side, and the free end of the stay is guided to the limiter by the stay on the middle fixing member, and then passes through the fixing member on the second side. After the pull bar on the side fixing member is turned back by 180 degrees, it guides the limiting member again through the pull bar arranged on the middle fixing member, and finally passes through the side fixing member arranged on the first side. After the pull bar is guided to the limiting piece, the pull bar fixing piece is fixed to the side fixing piece on the first side or the skin sticking piece on the side;

The third type is that the two sides of the central fixing member are respectively provided with braces, the braces corresponding to the side fasteners on the first side are provided with the braces on the first side, and the braces corresponding to the side fasteners on the second side are arranged There is a brace on the second side; the fixed end of the brace on the first side is arranged on the side fixing piece on the first side, and the free end of the brace on the first side is folded back through the brace arranged on the middle fixing piece After the limiter is folded back 180 degrees, it is guided to the limiter by the braces arranged on the first side fasteners, and then fixed to the side fasteners on the first side or the skin on the side by the brace fasteners. The fixed end of the brace on the second side is arranged on the side fastener on the second side, and the free end of the brace on the second side is folded back through the brace foldback limiter provided on the middle fastener. After 180 degrees, it is guided to the limiter by the pull bar arranged on the side fixing piece on the second side, and then fixed to the side fixing piece on the second side or the skin sticking piece on the side by the pulling bar fixing piece;

The fourth type is that the two sides of the central fixing piece are respectively provided with a tie bar, the side fixing piece corresponding to the first side is provided with a tie bar on the first side, and the side fixing piece corresponding to the second side is provided with a tie bar. There is a brace on the second side; the fixed end of the brace on the first side is set on the middle fixing piece, and the free end of the brace is folded back through the brace turn-back limiter arranged on the side fixing piece on the first side After the direction is 180 degrees, it is guided to the limiter by the draw bar set on the central fixing piece, and then fixed to the central fixing piece by the draw bar fixing piece; On the other hand, after the free end of the brace on the second side is folded back 180 degrees through the brace turn-back limiter provided on the side fixing member on the second side, it is then guided to the limit by the brace provided on the central fastener. After the positioning piece is fixed to the central fixing piece by the brace fixing piece.

Further: a long-shaped dressing support frame is arranged on the lower surface of the central fixing member, a chute is provided at the bottom of the dressing support frame along its long axis direction, and a sliding groove is provided on the slide groove. The sliding block is provided with a dressing body at the bottom of the sliding block.

Further: a through hole penetrating up and down is provided in the area corresponding to the wound in the middle of the middle fixing piece, a sheet-shaped dressing support is arranged on the upper surface of the middle fixing piece, and the lower surface of the dressing support corresponds to the middle fixing piece. The upper surface solid area of the dressing support is provided with a sticking and fixing layer, so that the dressing support and the upper surface solid area of the middle fixing piece are glued and fixed; a dressing body is arranged on the lower surface of the dressing support corresponding to the central through hole of the middle fixing piece, and the dressing body passes through it. Through the through hole and the dressing body thickness is greater than the side wall height of the through hole.

The beneficial effects of the present invention are as follows: the present invention adopts a novel structure design of the skin sticker with a dual structure, that is, it is composed of a main body sticking layer and a flexible sticking part, and is especially suitable for sticking a plurality of curved surfaces or a flexible sticking part. A wound composed of multiple splicing and pasting surfaces that are not in the same plane can prevent the skin adhesive from peeling off and falling off from the splicing and pasting surfaces due to poor adhesion. More specifically, the main body sticking layer is also set to a structure similar to the finger-like extension of octopus feet, that is, it is composed of a main body sticking part and an extended finger-like sticking part, and the suture tension generated by the puller is transmitted to the main body in the first stage. The sticking part, in the second stage, transmits and disperses to the finger sticking part, and the finger sticking part can spread the suture tension to a wider range of skin surface, so that the suture tension distributed on the skin surface on both sides of the wound in a unit area is distributed in steps At the same time, each finger-like sticking part dispersed in the second stage can produce different degrees of surface curvature, so that each different finger-like sticking part can independently adapt to its corresponding skin sticking surface, and the finger-like sticking part can be adjusted when the human body moves. The sticking parts can follow changes independently with their movement changes, further avoiding warping, peeling, falling off and poor sticking of the sticking pieces during movement. Moreover, the outer peripheral edge of the main body sticking layer is specially provided with a flexible sticking part structure similar to the soft edge of soft-shelled turtle to stick to the skin surface, the flexible sticking part has flexibility closer to the skin than the main body sticking layer, and is more flexible in the plane direction of the skin surface and It has better tensile elasticity and bending deformation ability in the vertical direction, and the softer flexible adhesive part is used to paste wounds composed of multiple curved surfaces or multiple splicing surfaces that are not in the same plane, such as the maxillofacial region, Head and neck, breast, armpits, knees, elbows, joints of limbs and other active parts can not all be located on the same flat static plane. The flexible adhesive part can better buffer the asynchronous movement between different splicing surfaces. The flexible sticking part and the flexible skin surface can achieve good compliance and good edge adhesion effect, increase the sticking firmness of the skin, and avoid edge warping, peeling, and falling off. At the same time, the flexible "tensile buffer zone" formed between the interface between the flexible adhesive part and the skin can also prevent the accumulated local tension from directly acting on the skin surface at the interface with the skin, and avoid skin injuries such as skin strain and tension skin blisters. . The utility model solves the problem that the skin sticker should not only have good tensile force bearing and dispersing performance, but also can flexibly adapt to multiple curved surfaces of the wound or multiple splicing and pasting surfaces that are not in the same plane, so as to obtain better Effectiveness and firmness of the paste. Therefore, it is especially suitable for sticking wounds such as maxillofacial, head and neck, breast, armpits, knees, elbows, limb joints and other active parts and the sticking surfaces cannot all be located on the same flat static plane. It is not easy to stick, and it is easy to warp, peel off, fall off and stick not firmly during exercise.

Description of drawings

1 is a schematic perspective view of an embodiment of the present utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the sectional view of A-A section in Fig. 2;

Fig. 4 is the enlarged schematic diagram of partial area B in Fig. 3;

5 is a top view of another embodiment of the utility model;

Fig. 6 is the sectional view of A1-A1 section in Fig. 5;

Fig. 7 is the enlarged schematic diagram of partial area C in Fig. 6;

8 is a schematic diagram of a unilateral skin patch;

Fig. 9 is the schematic diagram of the first specific structure of the wound closure device;

10 is a schematic diagram of a second specific structure of the wound closure device;

Figure 11 is a schematic diagram of the third specific structure of the wound closure device;

Marked as: flexible adhesive layer 1, main body adhesive layer 2, flexible adhesive part 3, hardened base tape 4, through hole 5, main body adhesive part 6, finger adhesive part 7, middle fixing part 8, side fixing part 9 , tensioning member 10, dressing support frame 11, pull bar 12, lock 13, pull bar guide limiter 14, pull bar fixing member 15, guide limit structure 16, pull bar return limit member 17, chute 18 , Slider 19 , Dressing body 20 , Dressing support 21 , Pull-bar giving way groove 22 .

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and specific embodiments.

It should be noted that if there are directional indication terms in this utility model, such as up, down, left, right, front and back, the direction and orientation terms are for the description of the relative position relationship between the components, not for the related components and the components. The absolute position of the positional relationship is specifically used to explain the relative positional relationship, motion, etc. between the components under a certain posture. If the specific posture changes, the directional indication also changes accordingly. . If there are terms related to quantity in this utility model, such as "many", "multiple", "several", etc., it specifically refers to two or more.

The wound closure device of the utility model comprises two skin stickers for connecting with the skin surfaces on both sides of the wound, and a wound puller arranged between the two skin stickers and connected to the two skin stickers respectively The skin adhesive component includes a main body adhesive layer 2 connected to the wound closure device and a flexible adhesive part 3 connected to the edge of the outer peripheral part of the main body adhesive layer 2 or the entire circumference of the edge.

Among them, the flexible sticking part 3 refers to more flexible than the main body sticking layer 2; that is, the flexible sticking part 3 is a softer sticking part than the main sticking layer 2, so the flexible sticking part 3 is located at the edge of the outer peripheral part of the main sticking layer 2 Or a more flexible sticking structure on the periphery formed by extending the edge of the whole circle outwards, the flexible sticking part 3 adopts a flexible sticker that is closer to the skin surface flexibility and has better tensile elasticity and bending deformation ability in both the plane direction and the vertical direction of the skin surface. It is made of flexible material, which increases the good compliance and edge adhesion between the skin sticker and the flexible skin surface, increases the sticking firmness of the skin, and avoids warping, peeling and falling off of the edge of the skin sticker. At the same time, a flexible "tensile buffer zone" can be formed between the interface between the flexible adhesive part 3 and the skin, which can prevent the accumulated local tension from directly acting on the skin surface at the interface of the skin, and avoid causing skin surface strain and tension-induced skin blisters. and other skin damage. More specifically, the flexible sticking part 3 may preferably be a flexible sticking film made of hydrogel, silica gel, rubber material or flexible polyurethane material with tensile elasticity and bending deformation ability.

More specifically, the main body adhesive layer 2 is a non-flexible adhesive layer; the so-called non-flexible adhesive layer is not completely inflexible, but refers to the flexible adhesive part 3 that is more "hard" and is not easily deformed by pulling. The material layer, for example, is set as a layer of dense polymer plastic sheet material, so that the purpose of conducting and dispersing the pulling force of the wound can be achieved through the non-flexible adhesive layer, so that the pulling force is more uniformly dispersed to the outside of the main body adhesive layer 2 The edge is then conducted to the corresponding flexible sticking portion 3 , and then conducted to the corresponding flexible skin surface through the flexible sticking portion 3 . In this way, the pulling force on the skin can be dispersed more evenly, and the skin damage such as skin strain and tension skin blisters caused by excessive concentration of the skin tension force can be avoided.

More specifically, the main body adhesive layer 2 may preferably be configured in a sheet shape, and at the same time, the sheet-shaped main body adhesive layer 2 is stretch-resistant in the plane direction, and can be bent in the vertical direction of the sheet-like plane. The advantage of this arrangement is that the main body sticking layer 2 can be properly bent and deformed to adapt to the curved surface of the skin sticking site while conducting and dispersing the pulling force of the wound. Specifically, the main body adhesive layer 2 can be made of polyester, polycarbonate, polyethylene, polypropylene, polyamide and other materials to make a card structure with moderate thickness.

More specifically, the structure of the main body sticking layer 2 can also be set as follows: it includes a main body sticking part 6 and a finger-like sticking part 7 extending in the outer direction. , the specific reference can be made to the drawings; one end of the finger-like sticking part 7 is connected to the edge of the main body sticking part 6, the other end of the finger-like sticking part 7 is extended outward in the direction away from the wound side, and the finger-like sticking part 7 Several are arranged at intervals along the edge of the main body sticking portion 6 facing away from the wound. The arrangement and distribution of each finger-like sticking portion 7 can also be referred to as shown in the drawings, which can roughly form a radially dispersed structure similar to octopus claws. The purpose of this setting is to make the main body adhesive layer 2 form a skeleton extension structure with a finger-like extension similar to an octopus, which can transmit the suture tension generated by the puller to the main body adhesive portion 6 of the main body adhesive layer 2 in the first stage, In the second stage, the finger-like sticking parts 7 distributed to both sides are transmitted, and the finger-like sticking parts 7 can spread the suture tension to a wider range of skin surface, so that the suture tension distributed on the skin surface on both sides of the wound in a unit area The steps are dispersed and lowered; at the same time, the sheet-like surfaces of each finger-like sticking part 7 dispersed in the second stage can be bent to different degrees, so that each finger-like sticking part 7 with different degrees of curvature can independently adapt to its corresponding curved shape. The skin sticking surface, or the scattered finger sticking parts 7 can independently adapt to the scattered splicing surfaces that are not in the same overall plane; the sheet-like finger sticking parts can follow the movement changes independently when the human body moves. Changes, avoid sticking parts warping, peeling, falling off and poor sticking during movement.

More specifically, on the outer peripheral edges of the main body sticking part 6 and the extended finger-like sticking part 7 of the main body sticking layer 2, a flexible soft edge structure similar to the soft edge of a soft-shell turtle formed by the flexible sticking part 3 can also be provided at the same time; In this way, the skin patch is applied to wounds composed of multiple curved surfaces or multiple spliced surfaces that are not in the same plane, such as the maxillofacial region, head and neck, breast, armpits, knees, elbows, extremities. For wounds in active parts such as joints and the adhesive surfaces cannot all be located on the same flat static plane: on the one hand, the skin adhesive member can transmit the suture tension generated by the puller to the main body adhesive part 6 of the main body adhesive layer 2 in the first stage, In the second stage, the finger-like sticking parts 7 distributed to both sides are transmitted, and the finger-like sticking parts 7 can spread the suture tension to a wider range of skin surface, so that the suture tension distributed on the skin surface on both sides of the wound in a unit area The steps are dispersed and lowered; at this time, the skin patch has a good overall performance of bearing the pulling force of the puller and effective pulling force transmission and dispersion performance. Since the surfaces of the finger-like sticking parts 7 dispersed in the second stage can be independently curved to different degrees, each finger-like sticking part 7 with different degrees of curvature can be independently adapted to its corresponding curved skin sticking surface or not. For the splicing surfaces in the same plane, when the human body moves, the finger-like sticking parts can follow the changes independently and independently, which can further prevent the sticking pieces from warping, peeling off, falling off and sticking weakly during the movement. On the other hand, there is a soft-shelled soft-edge soft-tipped soft-edge flexible sticker 3 that exists on the outer periphery of all skin stickers, including all body stickers 6 and the outer edges of the extended finger stickers 7. It is flexible and has better tensile elasticity and bending deformation ability in both the plane and vertical directions of the skin surface, which can better buffer the asynchronous movement between different splicing surfaces; When the wound is composed of splicing surfaces that are not in the same plane, the sticking effectiveness and firmness of the skin sticker are greatly increased, and the edges of the skin sticker are avoided from warping, peeling, and falling off. Therefore, the skin sticker has the advantages of Good flexibility properties with good skin surface compliance and good edge fit. Since a flexible "tensile buffer zone" can be formed between the interface between the flexible sticking part 3 and the skin, it is also possible to prevent the accumulated local tension from directly acting on the skin surface at the interface with the skin, thereby avoiding skin surface strain, tension skin blisters, etc. Skin damage. Therefore, it is especially suitable for sticking wounds such as maxillofacial, head and neck, breast, armpits, knees, elbows, limb joints, etc. and the sticking surfaces cannot all be located on the same flat static plane. The wound is not easy to stick, and it is easy to warp, peel off, fall off and stick not firmly during exercise.

More specifically, there is no theoretical limit to the specific number of finger-like sticking parts 7 . For example, in the example shown in the accompanying drawings, there are three finger-like sticking parts 7 ; if the size of the main body sticking part 6 is relatively large, , a larger number of finger-like sticking parts 7 can be provided.

More specifically, for the specific setting and forming method of the flexible sticking portion 3, at least the following settings can be adopted in the present invention:

First, the skin sticking member further includes a flexible sticking layer 1, the area of the flexible sticking layer 1 is larger than the area of the main sticking layer 2 and extends beyond the outer peripheral edge of the sticking layer 2; the flexible sticking part 3 is a It consists of the part where the flexible adhesive layer 1 extends beyond the main body adhesive layer 2 . Of course, the above-mentioned flexible adhesive layer 1 is a relatively soft adhesive piece, such as a flexible film adhesive cloth or a flexible soft adhesive adhesive tape, its flexibility should be “softer” than the main body adhesive layer 2, so that the resulting The flexible sticking part 3 is more "soft" than the main sticking layer 2, and is closer to the flexibility of the skin surface. More specifically, when the above-mentioned lamination method of the flexible adhesive layer 1 and the main adhesive layer 2 is provided, the positional relationship between the two can be set that the main adhesive layer 2 is attached to the upper surface of the flexible adhesive layer 1; or the main adhesive layer can be arranged. 2 is arranged on the lower surface of the flexible adhesive layer 1; or the main adhesive layer 2 can be arranged to be sandwiched between two layers of flexible adhesive layers 1, or the flexible adhesive layer 1 can be arranged to be sandwiched between two layers of the main body adhesive layer. between 2.

The second type is that the flexible sticking part 3 is a skirt structure arranged along the edge of the outer peripheral part of the main body sticking layer 2 or the edge of the whole circle, and the flexible sticking part 3 is connected to the main sticking layer 2 . The so-called skirt belt refers to a strip-like extension structure arranged only along the edge of the outer peripheral part of the main body adhesive layer 2 or the entire circumference of the edge. is a closed-loop ribbon structure. In addition, the connection method between the skirt and the main body adhesive layer 2 can be set as bonding, splicing or wrapping integrated molding, etc.; if the two are set as an integral structure, the corresponding edge of the main body adhesive layer 2 can be directly further outwards. The skirt is formed by extending the structure with a certain width, and the further extended skirt needs to form a flexible adhesive part 3 that is softer than the main body adhesive layer 2, so it can be achieved by setting the skirt to a thinner structure than the main body adhesive layer 2. , or use a material that is softer than the main body adhesive layer 2 and realize integral injection molding by a method similar to the "two-color injection molding" process. In addition, the skirt part can also be overlapped and connected with the main body adhesive layer 2, that is, the skirt part overlaps with the edge part of the main body adhesive layer 2, and the connection force transmission between the two is realized after the overlapping part is connected. For example, the main body adhesive layer 2 is set as a plastic sheet structure, and the skirt is set as a film adhesive layer, and one side of the film adhesive layer is the adhesive surface for sticking to the skin, and the other side of the film adhesive layer is For the back surface, the connection between the two can be realized by pasting the corresponding edge portion of the back surface of the film adhesive layer with the edge portion of the main body adhesive layer 2 of the plastic sheet.

In addition, in the present invention, when the skin adhesive member is a laminated structure of the flexible adhesive layer 1 and the main body adhesive layer 2, the flexible adhesive layer 1 and the main body adhesive layer 2 can both be set to include the main body adhesive portion 6 and the finger-shaped adhesive portion 7. When the skin sticking piece is a structure composed of the main body sticking layer 2 and the skirt, the main sticking layer 2 can be set as a structure including the main sticking part 6 and the finger sticking part 7, and the skirt can be along the main sticking part 6 and the main sticking part 7. The entire edges of the finger-shaped sticking parts 7 are arranged to form the flexible sticking part 3 .

More specifically, the flexible sticking part 3 is a specially set force dispersion transition "buffer zone" structure, and its set part includes the following three different schemes;

The first is that the flexible sticking portion 3 is only provided on the distal side of the wound of the main body sticking layer 2; of course, when the finger sticking portion 7 is provided, the flexible sticking portion 3 can be correspondingly formed on the edge of the finger sticking portion 7 . The above-mentioned flexible sticking portion 3 located at the far side of the wound on the main sticking layer 2 is mainly responsible for dispersing the suture tension “step reduction” evenly over a wide range of skin surface, so the structural width of the flexible sticking portion 3 at this location is It is relatively wider and thinner; and the flexible sticking portion 3 corresponding to the edge of the main sticking layer 2 located at the far side of the wound is required.

Second, in addition to the flexible sticking portion 3 disposed on the distal side of the wound of the main body adhesive layer 2, the flexible sticking portion 3 is also disposed on the proximal side of the wound in the main sticking layer 2; and the flexible sticking portion 3 located on the distal side of the wound The width is not less than the width of the flexible sticking part 3 located on the proximal side of the wound, and the thickness of the flexible sticking part 3 located on the distal side of the wound is not greater than the thickness of the flexible sticking part 3 located on the proximal side of the wound. Among them, the flexible adhesive part 3 located near the wound of the main body adhesive layer 2 is mainly responsible for passing the suture force generated by the puller through the hardened base tape 4 (when the hardened base tape 4 is provided), the main body adhesive layer 2, the main body adhesive The "flexible sticking part" on the proximal side of the wound of layer 2 pushes and transmits in parallel to the skin surface at the skin edge of the wound, so that the skin edge of the wound is closed, so the flexible sticking part 3 at this part bears the pushing and squeezing force, so the The width of the structure is preferably set to be narrower and thicker than the flexible sticking portion 3 located at the distal side of the wound.

The third type is to form a circle of flexible sticking parts 3 on the entire periphery of the main body sticking layer 2 , and on the basis of the above-mentioned second type, the other two sides of the sticking layer 2 are also provided with flexible sticking parts 3 , it can be understood that the near side of the wound, the far side of the wound and the edge of the circle surrounded by the other two sides of the main body sticking layer 2 are provided with flexible sticking parts 3; for details, please refer to the schematic diagram shown in FIG. The proximal side of the wound refers to the side corresponding to the upper edge in FIG. 8 , and the distal side of the wound refers to the side corresponding to the lower edge in FIG. 8 , and when the finger-like sticking part 7 is provided, the finger-like sticking part 7 is also included. The corresponding edge portion of , and the remaining two sides are the corresponding edges on the left and right sides in Figure 8. And in this structure, it is further preferable to set the width of the flexible sticking portion 3 on the far side of the wound to be no less than the width of the flexible sticking portion 3 on the proximal side of the wound, and the width of the flexible sticking portion 3 on the proximal side of the wound is not less than the width of the flexible sticking portion 3 on the proximal side of the wound. The width of the flexible sticking portion 3 on the remaining two sides; meanwhile, the thickness of the flexible sticking portion 3 on the far side of the wound is smaller than the thickness of the flexible sticking portion 3 on the proximal side of the wound.

In addition, as known from the above analysis, the function of the flexible sticking portion 3 can be used to improve the sticking effect between the edge portion and the skin, and at the same time avoid excessive concentration of force on the skin. The width is 1-10mm, which can be set reasonably according to the actual needs according to the shape or length of the wound. For example, the width can be set to 1mm, 5mm or 8mm in different specific parts; the thickness is 0.1mm, 0.5mm, etc. Specific size; in this way, while ensuring the sticking effect between the edge part and the skin, the wrinkles of this part of the skin can be further reduced, and the dispersion effect of the pulling force can be improved. In addition, when the laminated structure of the flexible adhesive layer 1 and the main adhesive layer 2 is provided in the present invention, the corresponding area of the main adhesive layer 2 can also be controlled by setting the area of the main adhesive layer 2 to account for 50%-99% of the area of the flexible adhesive layer 1. The size of the flexible sticking part 3; if the area ratio is set to be 90%, and the main sticking layer 2 is located in the middle of the flexible sticking layer 1, a circle of flexible sticking parts 3 with suitable width can also be formed. Of course, the width of the above-mentioned flexible sticking part 3 refers to the dimension between the boundary line where the flexible sticking part 3 contacts the edge of the main body sticking layer 2 to the boundary line corresponding to the edge of the flexible sticking part 3, and the thickness refers to the “flexible sticking part 3”. The maximum thickness of the flexible adhesive layer 1 is the maximum thickness of the “flexible adhesive portion”, and the thickness of the “flexible adhesive portion” can also be set to extend outward along the width direction of the “flexible adhesive portion” and gradually decrease.

More specifically, in the present invention, a hardened base tape 4 is further provided on the main body adhesive layer 2, and the hardened base tape 4 is arranged on the edge of the main body adhesive layer 2 near the wound side and along the side edge. The purpose of setting the hardened base tape 4 is mainly to make the edge of the main adhesive layer 2 close to the wound side to form a stiffer side band-like structure parallel to the wound with higher strength, so that the hardened base tape can pass through the process of pulling the wound. 4. Further enhance the overall and uniform translational pulling of the wound edge to improve the alignment effect of wound pulling. Without loss of generality, the hardened base tape 4 should be made of a material with a harder hardness than that of the main body adhesive layer 2, such as high-density polymer plastic sheets or other hard materials; 4, the wound closure device can be further directly connected with the hardened base tape 4 and connected with the main body adhesive layer 2 to transmit force through the hardened base tape 4.

In addition, in order to prevent the skin sticking piece from having a sharp corner structure to form a tensile force gathering point and causing the skin to be pulled, it is further preferred in the present invention to set the edge corners and edge connection parts on the skin sticking piece to be arc-shaped and smooth transition. ; That is, for a smooth transition in the tangential direction of the edge for the corresponding position, the specific reference may be made to the rounded corner structure at each corner position shown in FIG. 2 .

The wound closure device in the utility model is used to provide pulling force to the skin stickers on both sides, and finally pulls the skin on both sides of the wound to the middle of the wound, so that the wound is drawn and closed. More specifically, the wound closure device in the present invention may specifically include a central fixing member 8, a side fixing member 9 and a tensioning member 10; wherein two side fixing members 9 are provided, and two side fixing members are provided. The parts 9 are respectively connected with the two skin sticking parts in a one-to-one correspondence; the middle fixing part 8 is arranged between the two side fixing parts 9 and is located above the wound; The side fixings 9 are connected together. For example, tension members 10 are respectively provided between the central fixing member 8 and the side fixing members 9 on both sides for connection, or a tensioning member 10 passing through the central fixing member 8 is provided between the side fixing members 9 on both sides. 10 to connect. Through the above arrangement, the tensioning effect on the skin sticking members on both sides can be achieved by tensioning the tensioning member 10 .

In addition, the side fixing member 9 in the present invention is used for cooperating with the tension member 10 to apply the wound pulling force to the skin sticking member, that is, the suture pulling force of the wound. Without loss of generality, the side fixing member 9 can be a separate component, as shown in FIG. 4 , it can be set as a layer of structural member pasted on the main body adhesive layer 2; of course, the side fixing member 9 is also It can be set as a structure integrated with the main body adhesive layer 2 , that is, the main body adhesive layer 2 is provided with a partial structure for cooperating with the tension member 10 as the side fixing member 9 . In addition, the tensioning member 10 can also be integrated with the side fixing member 9 into an integral structure, such as the specific example shown in FIG. A part of one end of the integrated strip-shaped structure forms a side fixing member 9 and is directly attached to the main body adhesive layer 2 , and a part of the other end of the integrated strip-shaped structure forms a strip-shaped tension member 10 . In addition, if the hardened base tape 4 is further provided, the side fixing member 9 can also be integrated with the hardened base tape 4 or the side fixing member 9 can be connected to the hardened base tape 4 .

In addition, the tensioning member 10 includes a pulling rod 12 and a pulling rod fixing member 15; wherein, one end of the pulling rod 12 is a fixed end, and the fixed end is arranged on the middle fixing member 8 or the side fixing member 9. The other end of the strip 12 is a free end, which can be fixed to the central fixing member 8 , the lateral fixing member 9 or the skin adhesive member by means of the brace fixing member 15 . For example, the bracing bar 12 is a strip-shaped drawstring and the bracing bar fixing member 15 is an adhesive layer disposed on the free end of the bracing bar 12 . Alternatively, if the pull bar 12 is a ratchet bar and the pull bar fixing member 15 is a lock catch 13 , a ratchet tooth is provided on the ratchet bar, a pawl is provided in the lock catch 13 , and the ratchet bar passes through the lock catch 13 . The unidirectional locking is realized by the pawl and the ratchet; that is, the unidirectional locking structure of the pawl and the ratchet is realized, so that the ratchet can only be pulled in one direction, which is convenient for preventing the wound from collapsing during the process of pulling and closing the wound.

In addition, the tension member 10 may further include a stay guide limiter 14 and/or a stay turn limiter 17; the stay guide limiter 14 is provided with a “door frame” or “flat mouth” Through the guide and limit structure, the free end of the pull bar 12 passes through the guide limit structure; the pull bar turn-back limiter 17 is arranged on the middle fixing member 8 or the side fixing member 9, and the pull bar 12 The free end is folded and set after being turned over 180 degrees around the pull bar fold-back limiter 17 .

Wherein, by providing the stay guide limiting member 14, the stay bar 12 can be limited and guided, and the stay bar 12 can only be pulled along the long axis direction of the stay bar 12 after the stay bar 12 is limited and guided. The pulling direction should be approximately perpendicular to the direction of the wound, so that the wound can be drawn and closed in the middle more favorably by the pulling action of the pulling strip 12 . Specifically, for example, the guide limiter 14 of the pull bar can be set as a layer of plastic card that is adhered to the skin sticker at intervals by point sticking, and then forms a """ The through-hole structure of "flat mouth" is used as a guide limit structure.

Wherein, the stay 17 can be configured as a shaft structure, and the shaft can be installed on the corresponding structure through the necessary mounting seat, or the stay 17 can be set as a through-hole structure, as shown in the accompanying drawings 1 and FIG. 5 are the setting of the pull bar return limiting member 17 as a folded through hole structure, and the embodiment shown in FIG. 1 and FIG. The structure in which the piece 17 and the central fixing piece 8 are integrated.

As for the specific structure formation of the tensioning member 10 in the present invention, it can be realized by adopting different specific solutions of the following categories. For convenience of description, two lateral fixing members 9 are provided, which are respectively the lateral fixing members 9 on the first side. and side mounts 9 on the second side:

First, the fixed end of the brace 12 is arranged on the side fixing member 9 on the first side, and the free end of the brace 12 is guided to the limiting member 14 by the brace arranged on the middle fixing member 8 and arranged on the first side. After the braces on the side fixing members 9 on the two sides are guided to the limiting member 14, they are fixed to the side fixing member 9 on the second side or the skin sticking member on the side by the brace fixing member 15;

In the second type, the fixed end of the brace 12 is arranged on the side fixing member 9 on the first side, and the free end of the brace 12 is guided to the limiting member 14 by the brace arranged on the central fixing member 8, and then passes through After the pull-back limiter 17 disposed on the side fixing member 9 on the second side is folded back 180 degrees, it is guided to the limiter 14 again by the pull-string disposed on the middle fixing member 8, and finally passed through After the brace on the side fixing member 9 on the first side is guided to the limiting member 14, it is fixed by the brace fixing member 15 to the side fixing member 9 on the first side or the skin sticking member on the side;

In the third type, braces 12 are provided on both sides of the central fixing member 8 respectively, and the braces 12 on the first side are provided corresponding to the side fixing member 9 on the first side, which are fixed with the side fixing member 9 on the second side. The brace 12 on the second side is correspondingly provided with the brace 9 on the second side; the fixed end of the brace 12 on the first side is arranged on the side fixing element 9 on the first side, and the free end of the brace 12 on the first side is provided on the After the pull-back limiter 17 on the central fixing member 8 is folded back 180 degrees, it is guided to the limiter 14 by the pull-bar provided on the first side fixing member 9 and then fixed to the pull-tie fixing member 15. On the side fixing member 9 on the first side or the skin sticking member on this side; the fixed end of the pull bar 12 on the second side is set on the side fixing member 9 on the second side, and the free After the end is folded back 180 degrees in the direction of the limiter 17 by the pull bar set on the central fixing member 8, and then guided by the pull bar on the side fixing member 9 on the second side to guide the limiting member 14, the pull bar is pulled. The fixing element 15 is fixed to the lateral fixing element 9 on the second side or to the skin adhesive element on that side;

In the fourth type, braces 12 are provided on both sides of the central fixing member 8 respectively, and the braces 12 on the first side are provided corresponding to the side fixing members 9 on the first side, which are fixed with the side fixing member 9 on the second side. The braces 12 on the second side are correspondingly provided with the braces 9; the fixed ends of the braces 12 on the first side are arranged on the central fastener 8, and the free ends of the braces 12 pass through the side fasteners arranged on the first side. 9. After the folded-back limiting member 17 on the upper bracket is folded back 180 degrees, it is then guided to the limiting member 14 by the tie-rod set on the central fixing member 8 and then fixed to the central fixing member 8 by the tie-bar fixing member 15; The fixed end of the brace 12 on the second side is set on the middle fixing member 8 , and the free end of the brace 12 on the second side passes through the brace foldback limiting member 17 arranged on the side fixing member 9 on the second side After the folded direction is 180 degrees, it is guided to the limiting member 14 by the braces arranged on the middle fixing member 8 and then fixed to the middle fixing member 8 by the brace fixing member 15 .

In addition, when the pull bar 12 is a ratchet bar and the pull bar fixing member 15 is a structure of a lock 13, the setting of the tension member 10 may also include the following concentrated specific solutions:

The first type is that the lock 13 is fixed on the central fixing member 8 , the fixed end of the pull bar 12 is fixed on the side fixing member 9 , and the free end of the pulling bar 12 passes through the locking buckle 13 in the direction of the middle fixing member 8 And locked by the pawl limit;

In the second type, the lock 13 is fixed on the side fixing member 9 , the fixed end of the pull bar 12 is fixed on the middle fixing member 8 , and the free end of the pull bar 12 passes through the lock 13 in the direction of the side fixing member 9 . And locked by the pawl limit;

The third type is that the lock 13 is fixedly arranged on the side fixing member 9 on one side, while the fixed end of the pull bar 12 is fixed on the side fixing member 9 on the other side, and the free end of the pulling bar 12 is arranged through the The guide hole or guide groove structure on the central fixing piece 8 then passes through the lock catch 13 on the opposite side fixing piece 9 and is restricted and locked by the pawl.

In addition, as shown in FIG. 6 , a long-shaped dressing support frame 11 can also be provided on the lower surface of the central fixing member 8 , and a chute 18 is provided at the bottom of the dressing support frame 11 along its long axis direction. , a sliding block 19 is provided on the sliding groove 18 in a sliding fit, and a dressing body 20 is provided at the bottom of the sliding block 19 . The advantage of this arrangement is that the sliding groove 18 and the sliding block 19 can be slidably matched to realize convenient and fast sliding replacement of the dressing body 20; and the dressing body 20 can be directly fixed on the bottom of the sliding block 19 by sticking. Wherein, the dressing support frame 11 and the central fixing member 8 can also be provided as an integral structure.

In addition, as shown in FIG. 1 , a through hole 5 penetrating up and down can also be provided in the area corresponding to the wound in the middle of the central fixing member 8 , and a sheet-shaped dressing support 21 is provided on the upper surface of the central fixing member 8 . The lower surface of the dressing support 21 is provided with an adhesive fixing layer corresponding to the solid area of the upper surface of the central fixing piece 8, so that the dressing support 21 and the solid area of the upper surface of the middle fixing piece 8 are pasted and fixed; A dressing body 20 is disposed in the region of the through hole 5 in the middle of the fixing member 8 , the dressing body 20 passes through the through hole 5 and the thickness of the dressing body 20 is greater than the height of the side wall of the through hole 5 .

Wherein, the dressing body 20 is actually a dressing that can improve wound hemostasis, anti-infection, promote healing, reduce scarring or therapeutic effect, such as hemostatic sponge, chitosan anti-infective dressing, alginate dressing, iodine-containing absorbent cotton Dressings and other medical dressings.

A specific embodiment 1:

Referring to the schematic diagrams of a specific structure shown in FIGS. 1 to 4 , wherein the wound closure device is specifically arranged to include a central fixing member 8 , a pulling bar guide limiting member 14 and a pulling bar 12 , and the middle fixing member 8 It is arranged between two skin stickers, and between the middle fixing piece 8 and the skin stickers on both sides is respectively provided with a group of braces 12 for connection, and each group of braces 12 includes three braces 12; A through hole 5 penetrating up and down is provided in the area corresponding to the wound in the middle of the fixing piece 8 , a sheet-shaped dressing support 21 is arranged on the upper surface of the middle fixing piece 8 , and the lower surface of the dressing support 21 corresponds to the upper surface of the middle fixing piece 8 . The solid area of the surface is provided with a sticking and fixing layer, so that the dressing support 21 and the solid area on the upper surface of the middle fixing piece 8 are glued and fixed; a dressing body 20 is provided on the lower surface of the dressing support 21 corresponding to the area of the central through hole 5 of the middle fixing piece 8 , the dressing body 20 passes through the through hole 5 and the thickness of the dressing body 20 is greater than the height of the side wall of the through hole 5; in this way, the dressing support 21 can be covered on the through hole 5 to limit the position of the dressing body 20 and sealing effect. At the same time, the outer periphery of the central fixing member 8 is provided with a perforated structure corresponding to each stay bar 12 as a stay bar return limiter 17; The strip guide limiter 14 is set as a layer of plastic card and is pasted on the skin sticker at intervals by point sticking, and then forms a “flat mouth” connection with the skin sticker through the interval between two adjacent sticking points. The hole structure is used as a guide and limit structure; one end of each brace 12 is a fixed end, and the other end of the brace 12 is a free end, and an adhesive layer structure is provided at the free end of the brace 12 as a brace fixing member 15; The fixed end of the strip 12 is fixed on one of the skin stickers, and the specific fixing method can be directly sticking and fixing on the skin sticker, and the free end of the pull strip 12 passes through the corresponding perforated structure on the central fixing piece 8 and turns over. It can be folded 180 degrees back, and after being folded back, it can pass through the guide and limit structure 16 on the guide and limit member 14 of the pull bar, and can be fixed on the skin sticker on the same side of the fixed end by the pull bar fixing member 15 .

Another specific embodiment 2:

Referring to the schematic diagrams of a specific structure shown in FIGS. 5 to 7 , wherein the wound closure device is specifically arranged to include a central fixing member 8 , a pulling bar guide limiting member 14 and a pulling bar 12 , and the middle fixing member 8 It is arranged between two skin stickers, and between the middle fixing piece 8 and the skin stickers on both sides is respectively provided with a group of braces 12 for connection, each group of braces 12 includes three braces 12; The lower part of the component 8 is provided with a dressing support frame 11, the dressing support frame 11 is in the shape of a long strip, and the specific shape can be referred to as shown in the drawings. The bottom of the dressing support frame 11 is provided with a chute 18 along its long axis direction, A sliding block 19 is provided on the sliding groove 18 in a sliding fit, and a dressing body 20 is provided at the bottom of the sliding block 19; Set in pairs, as shown in the accompanying drawings, three groups of braces 12 are formed, and a perforated structure is provided on the central fixing member 8 for each pair of braces 12 as braces foldback limiters 17, that is, the same pair of braces 12 After passing through the perforated structure corresponding to the same brace turn-back limiting member 17, it is folded back. On the lower surface of the central fixing member 8, the position corresponding to the perforated structure is provided with a brace giving way groove 22, so that the brace can pass through the brace. The abdication groove 22 makes it possible to form a channel that allows the pulling bar 12 to move through and can be pulled and adjusted after the dressing support frame 11 is attached to the bottom surface of the central fixing member 8; A stay guide limiter 14, a "door frame type" or "flat mouth" guide limit structure 16 is arranged on the stay guide limiter 14, and the stay guide limiter 14 can be the same as the above pair of drawings. The same structure as the scheme in 1 to 4. One end of each brace 12 is a fixed end, and the other end of the brace 12 is a free end, and an adhesive layer structure is provided at the free end of the brace 12 as a brace fixing member 15; the fixed end of the brace 12 is fixed therein On a skin sticker, the free end of the draw bar 12 passes through the draw bar to give way to the groove 22, then passes through the corresponding perforated structure on the central fixing piece 8, and is folded 180 degrees back, and is guided through the draw bar after being turned back. The guiding and limiting structure 16 on the limiting member 14 can then be fixed on the skin sticking member on the same side as the fixing end thereof through the tie-bar fixing member 15 .

Claims (14)

1. Wound closer, including two skin paste the piece and set up between two skin paste the piece and draw with the wound that two skin paste the piece and be connected respectively and close ware, its characterized in that with the skin surface of wound both sides: the skin pasting piece comprises a main body pasting layer (2) connected with the wound pulling-closing device and a flexible pasting part (3) connected to the peripheral part edge or the whole circle edge of the main body pasting layer (2).

2. The wound closure device of claim 1, wherein: the main body pasting layer (2) is a non-flexible pasting layer.

3. A wound closure according to claim 1 or 2, wherein: layer (2) are pasted to the main part is the slice, and layer (2) are pasted to the main part and stretch-proofing in the plane direction, can bend in plane vertical direction.

4. The wound closure device of claim 3, wherein: the main body pasting layer (2) comprises a main body pasting part (6) and a finger-shaped pasting part (7) extending towards the outer side direction, wherein the main body pasting part (6) is in a strip shape, and the long axis of the main body pasting part is parallel to a wound; one end of the finger-shaped pasting part (7) is connected with the edge of the main body pasting part (6), the other end of the finger-shaped pasting part (7) extends outwards towards the direction far away from the wound side, and the finger-shaped pasting parts (7) are distributed along the side edge of the main body pasting part (6) back to the wound side at intervals.

5. A wound closure device as claimed in any of claims 1 to 4, wherein: the flexible pasting part (3) is of a skirt strip structure distributed along the peripheral part edge or the whole circle edge of the main body pasting layer (2), and the flexible pasting part (3) and the main body pasting layer (2) are integrally formed in a bonding, splicing or coating mode.

6. A wound closure device as claimed in any of claims 1 to 4, wherein: the skin pasting piece also comprises a flexible pasting layer (1), wherein the area of the flexible pasting layer (1) is larger than that of the main body pasting layer (2) and extends beyond the peripheral edge of the main body pasting layer (2); the flexible pasting part (3) is composed of a part of the flexible pasting layer (1) extending beyond the main body pasting layer (2).

7. The wound closure device of claim 6, wherein: the main body pasting layer (2) is pasted on the upper surface of the flexible pasting layer (1); or the main body pasting layer (2) is pasted and arranged on the lower surface of the flexible pasting layer (1); or the main body pasting layer (2) is clamped between the two flexible pasting layers (1); or the flexible adhesive layer (1) is clamped between the two main body adhesive layers (2).

8. The wound closure device of claim 6, wherein: the flexible adhesive layer (1) is a flexible adhesive film made of hydrogel, silica gel, rubber materials or polyurethane materials with stretching elasticity and bending deformation capacity.

9. A wound closure device as claimed in any of claims 1 to 8, wherein: the main body pasting layer (2) is provided with a hardening base belt (4), the hardening base belt (4) is arranged on the side, close to the wound, of the main body pasting layer (2), and the hardening base belt (4) is connected with the wound closing device.

10. A wound closure device as claimed in any of claims 1 to 9, wherein: the flexible pasting part (3) comprises the following three types:

firstly, a flexible pasting part (3) is arranged only on the far side edge of the wound of the main body pasting layer (2);

secondly, flexible pasting parts (3) are arranged on the far side and near side edges of the wound of the main body pasting layer (2), the width of the flexible pasting part (3) on the far side of the wound is not smaller than that of the flexible pasting part (3) on the near side of the wound, and the thickness of the flexible pasting part (3) on the far side of the wound is not larger than that of the flexible pasting part (3) on the near side of the wound;

thirdly, a circle of flexible pasting part (3) is arranged on the whole peripheral edge of the main body pasting layer (2), the width of the flexible pasting part (3) positioned at the far side of the wound is not less than that of the flexible pasting part (3) positioned at the near side of the wound, and the width of the flexible pasting part (3) positioned at the near side of the wound is not less than that of the flexible pasting parts (3) positioned at the two other sides; meanwhile, the thickness of the flexible pasting part (3) positioned at the far side of the wound is not more than that of the flexible pasting part (3) positioned at the near side of the wound.

11. A wound closure device as claimed in any of claims 1 to 10, wherein: the wound closing device comprises a middle fixing piece (8), a side fixing piece (9) and a tensioning piece (10); the two side fixing pieces (9) are arranged, and the two side fixing pieces (9) are respectively connected with the two skin sticking pieces in a one-to-one corresponding manner; the middle fixing piece (8) is arranged between the two side fixing pieces (9) and is positioned above the wound; the middle fixing piece (8) is connected with the side fixing pieces (9) at two sides through a tensioning piece (10); the tension piece (10) comprises a brace (12) and a brace fixing piece (15); one end of the brace (12) is a fixed end, the other end of the brace (12) is a free end, the fixed end is arranged on the middle fixing piece (8) or the side fixing piece (9), and the free end can be fixed on the middle fixing piece (8), the side fixing piece (9) or the skin pasting piece through the brace fixing piece (15); the tensioning piece (10) further comprises a brace guide limiting piece (14) and/or a brace return limiting piece (17) which is/are arranged on the middle fixing piece (8) or the side fixing piece (9); the brace guide limiting part (14) is provided with a through guide limiting structure in a shape of a door frame or a flat mouth, and the free end of the brace (12) penetrates through the guide limiting structure; the free end of the brace (12) turns back after being turned 180 degrees around the brace turn-back limiting piece (17).

12. The wound closure device of claim 11, wherein: the two side fixing pieces (9) are respectively a side fixing piece (9) at the first side and a side fixing piece (9) at the second side; the arrangement of the tension piece (10) at least comprises the following four types:

firstly, the fixed end of a brace (12) is arranged on a side fixing piece (9) at a first side, and the free end of the brace (12) is fixed on the side fixing piece (9) at a second side or a skin pasting piece at the second side by a brace fixing piece (15) after passing through a brace guide limiting piece (14) arranged on a middle fixing piece (8) and a brace guide limiting piece (14) arranged on the side fixing piece (9) at the second side;

secondly, the fixed end of a brace (12) is arranged on a side fixing piece (9) on a first side, the free end of the brace (12) is turned back for 180 degrees through a brace guide limiting piece (14) arranged on a middle fixing piece (8) and a brace turn-back limiting piece (17) arranged on a side fixing piece (9) on a second side, then is again passed through the brace guide limiting piece (14) arranged on the middle fixing piece (8), and finally is fixed on the side fixing piece (9) on the first side or a skin pasting piece on the first side through the brace fixing piece (15) after passing through the brace guide limiting piece (14) arranged on the side fixing piece (9) on the first side;

thirdly, two sides of the middle fixing piece (8) are respectively provided with a brace (12), the brace (12) at the first side is arranged corresponding to the side fixing piece (9) at the first side, and the brace (12) at the second side is arranged corresponding to the side fixing piece (9) at the second side; the fixed end of a brace (12) at the first side is arranged on the side fixing piece (9) at the first side, the free end of the brace (12) at the first side is bent back for 180 degrees through a brace folding back limiting piece (17) arranged on the middle fixing piece (8), and then is fixed on the side fixing piece (9) at the first side or a skin pasting piece at the first side through a brace fixing piece (15) after passing through a brace guiding limiting piece (14) arranged on the first side fixing piece (9); the fixed end of a brace (12) at the second side is arranged on the side fixing piece (9) at the second side, the free end of the brace (12) at the second side is bent back for 180 degrees through a brace return limiting piece (17) arranged on the middle fixing piece (8), and then is fixed on the side fixing piece (9) at the second side or a skin pasting piece at the side through a brace fixing piece (15) after passing through a brace guide limiting piece (14) arranged on the side fixing piece (9) at the second side;

fourthly, braces (12) are respectively arranged on two sides of the middle fixing piece (8), the brace (12) on the first side is arranged corresponding to the side fixing piece (9) on the first side, and the brace (12) on the second side is arranged corresponding to the side fixing piece (9) on the second side; the fixed end of a brace (12) at a first side is arranged on a middle fixing piece (8), and the free end of the brace (12) is fixed on the middle fixing piece (8) by a brace fixing piece (15) after being turned back for 180 degrees through a brace turning back limiting piece (17) arranged on a side fixing piece (9) at the first side and then being guided to a limiting piece (14) arranged on the middle fixing piece (8); the fixed end of the brace (12) on the second side is arranged on the middle fixing piece (8), the free end of the brace (12) on the second side is bent back for 180 degrees through the brace return limiting piece (17) arranged on the side fixing piece (9) on the second side, and then is fixed on the middle fixing piece (8) through the brace guide limiting piece (14) arranged on the middle fixing piece (8) by the brace fixing piece (15).

13. The wound closure device of claim 11 or 12, wherein: the lower surface of the middle fixing part (8) is provided with a dressing support frame (11) connected with a strip shape, the bottom of the dressing support frame (11) is provided with a sliding groove (18) along the long axis direction, the sliding groove (18) is provided with a sliding block (19) in a sliding fit manner, and the bottom of the sliding block (19) is provided with a dressing body (20).

14. The wound closure device of claim 11 or 12, wherein: a through hole (5) which penetrates through the middle of the middle-placed fixing piece (8) up and down is formed in the area corresponding to the wound, a sheet dressing support (21) is arranged on the upper surface of the middle-placed fixing piece (8), and a sticking and fixing layer is arranged on the lower surface of the dressing support (21) corresponding to the solid area of the upper surface of the middle-placed fixing piece (8), so that the dressing support (21) is stuck and fixed with the solid area of the upper surface of the middle-placed fixing piece (8); a dressing body (20) is arranged on the lower surface of the dressing support (21) in a region corresponding to the middle through hole (5) of the middle fixing piece (8), the dressing body (20) penetrates through the through hole (5), and the thickness of the dressing body (20) is larger than the height of the side wall of the through hole (5).

Images