Auxiliary positioning piece for skin suture

Abstract

The utility model discloses a skin suture auxiliary positioning piece which comprises a scale layer, an absorbing layer, a bonding layer and a maintaining layer, the scale layer is a transparent plastic membrane, and the scale layer comprises a first scale strip, a second scale strip and a connecting part connected to one end of the first scale strip and one end of the second scale strip; the absorbing layer is arranged at the bottom of the scale layer, the shape of the absorbing layer is matched with that of the scale layer, and the absorbing layer is used for absorbing body fluid exuding from the surgical incision; the bonding layer is arranged at the bottom of the absorbing layer, the width of the bonding layer is smaller than that of the absorbing layer, and the bonding layer is used for being bonded and fixed to the body surface of a human body; the maintaining layer is arranged above the scale layer and completely covers the scale layer, the maintaining layer is made of a transparent plastic material, the hardness of the maintaining layer is larger than that of the scale layer, and the maintaining layer is used for keeping the form of the scale layer unchanged before use and can be at least partially removed to expose the gap area during use. According to the positioning piece, accurate visual reference is provided for doctors, needle inserting positions on the two sides of an incision can accurately correspond, and the incision suturing quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to surgical suturing auxiliary device especially relates to a skin suturing auxiliary positioning piece. BACKGROUND

[0002] In the field of surgery, the suturing of surgical incisions is a crucial step that directly affects the quality of wound healing and the speed of postoperative recovery. Ideal suturing should be able to precisely align the skin on both sides of the incision and maintain uniform tension, thereby promoting rapid healing of the wound, reducing scar formation, and restoring normal function and appearance of the skin. However, in clinical practice, this seemingly simple task is full of challenges.

[0003] The complexity of the surgical incision suturing process mainly stems from the characteristics of human skin tissue. Skin is an elastic tissue with significant differences in tension and thickness at different locations. In addition, tissue edema, bleeding during surgery, and the use of anesthetic drugs can change the normal state of the skin, increasing the difficulty of precise suturing.

[0004] Traditional suturing methods mainly rely on the experience and technique of the doctor. Doctors usually need to judge the needle insertion point position by naked eye and control the depth and tension of suturing through touch. However, due to the lack of precise positioning auxiliary tools, doctors often need to rely on their own estimates and judgments when suturing. The main disadvantage of this method is its subjectivity and non-repeatability. Even the same doctor, under different conditions or at different times, may have differences in suturing. Such differences may result in the inability to completely align the skin needle insertion positions on both sides of the incision, leading to suturing defects, the most common of which include skin wrinkles, uneven edges, etc. These problems not only affect the appearance of the wound, but also may lead to scar hyperplasia, etc. SUMMARY

[0005] The utility model aims to at least solve one of the technical problems in the related art. To this end, the purpose of the utility model is to provide a skin suturing auxiliary positioning piece.

[0006] To achieve the above-mentioned purpose, according to the skin suturing auxiliary positioning piece of the utility model embodiment, comprising:

[0007] The scale layer is a transparent plastic film, and the scale layer includes a first scale bar, a second scale bar, and a connecting part connected to one end of the first scale bar and the second scale bar. The first scale bar and the second scale bar define a gap area for exposing the surgical incision;

[0008] The absorption layer is provided at the bottom of the scale layer, and the shape of the absorption layer is adapted to the shape of the scale layer to absorb the body fluids exuded from the surgical incision.

[0009] an adhesive layer provided at the bottom of the absorbing layer and having a width smaller than that of the absorbing layer for adhering and fixing to the body surface of a human body;

[0010] a retaining layer provided above the scale layer and covering the scale layer completely, the retaining layer being made of transparent plastic material and having a hardness greater than that of the scale layer, for maintaining the shape of the scale layer unchanged before use and being removed at least partially to expose the gap area when in use;

[0011] The first scale bar is provided with a plurality of first scale lines, and the second scale bar is provided with a plurality of second scale lines, the plurality of first scale lines and the plurality of second scale lines correspond one by one, and the interval between two adjacent first scale lines is equal to the interval between two adjacent second scale lines corresponding thereto.

[0012] According to the skin suture auxiliary positioning member provided by the embodiment of the utility model, the transparent scale layer cooperates with the first scale line and the second scale line which correspond accurately, provides accurate visual reference for the doctor, makes the needle insertion positions on both sides of the incision correspond accurately, and greatly reduces the defects such as wrinkles in the suture process. The absorbing layer can absorb the exudate remaining around the surgical incision, helps to keep the surrounding area clean, and prevents the first scale line and the second scale line from being contaminated by the exudate, so as to ensure that the first scale line and the second scale line are clear and visible. The adhesive layer is pasted on the body surface, which ensures the stability during use, and at the same time, the use is convenient and simple. The retaining layer can maintain the stable shape of the positioning member before use, so that the positioning member can be accurately pasted to the surgical incision position, especially the first scale bar and the second scale bar can be accurately corresponded and located on both sides of the surgical incision, and the first scale bar and the second scale bar are prevented from being misaligned, and the surgical area can be exposed by being partially removed when in use. In this way, the two side scales on the positioning member are accurately corresponded, the accuracy and reliability of positioning are improved. In other words, the positioning member with the multi-layer structure not only improves the accuracy and consistency of suture, but also takes into account the practicability and hygiene requirements, provides a simple and effective skin suture auxiliary positioning tool for the doctor, and improves the quality of surgical incision suture.

[0013] In addition, the skin suture auxiliary positioning member according to the above embodiment of the utility model can also have the following additional technical features:

[0014] According to one embodiment of the utility model, the retaining layer includes a central covering part and a peripheral covering part, the area of the central covering part is substantially equal to the area of the gap area, and the area of the peripheral covering part is substantially equal to the area of the scale layer;

[0015] The central cover portion is connected to the peripheral cover portion by a tear line to enable the central cover portion to be torn away to reveal the gap region in use.

[0016] According to an embodiment of the present application, the peripheral cover portion comprises a substrate layer and a metal-based antibacterial layer, the metal-based antibacterial layer is coated on the upper surface of the substrate layer, and the metal-based antibacterial layer contains a metal-based antibacterial agent.

[0017] According to an embodiment of the present application, a plurality of first indication portions are arranged on the first scale bar at equal intervals along the length direction thereof, each of the first indication portions protrudes to one side of the second scale bar along the width direction of the first scale bar, and each of the first indication portions is provided with a scale reading and opposite to a corresponding one of the first scale lines;

[0018] A plurality of second indication portions are arranged on the second scale bar at equal intervals along the length direction thereof, each of the second indication portions protrudes to one side of the first scale bar along the width direction of the second scale bar, and each of the second indication portions is provided with a scale reading and opposite to a corresponding one of the second scale lines.

[0019] The scale reading on the corresponding first indication portion is the same as the scale reading on the second indication portion.

[0020] According to an embodiment of the present application, the first indication portion and the second indication portion are both formed in a triangular or trapezoidal shape, and the width thereof gradually decreases from the outer side to the inner side.

[0021] According to an embodiment of the present application, the first indication portion and the second indication portion both protrude from the inner edge of the absorbing layer.

[0022] According to an embodiment of the present application, the absorbing layer comprises an upper absorbing layer and a lower absorbing layer, the lower absorbing layer is made of a first absorbing material and is used for rapidly absorbing initial exudate, the upper absorbing layer is made of a second absorbing material and is used for long-time storage of absorbed liquid, the capacity of the first absorbing material is less than that of the second absorbing material, and a semi-permeable membrane is arranged between the upper absorbing layer and the lower absorbing layer to allow one-way flow of liquid from the lower absorbing layer to the upper absorbing layer.

[0023] According to an embodiment of the present application, the surface of the adhesive layer is provided with a microneedle array structure, the microneedle array structure comprises a plurality of soluble microneedles, the soluble microneedles can penetrate the epidermis layer and gradually dissolve after contacting the skin.

[0024] According to an embodiment of the present application, the connecting portion is provided with a first handle, and the central cover portion is provided with a second handle at the end away from the connecting portion.

[0025] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, hereinafter the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without any creative labor.

[0027] Figure 1 is a structural schematic diagram of the skin suture auxiliary positioning member of the embodiment of the present application;

[0028] Figure 2 is an exploded view of the skin suture auxiliary positioning member of the embodiment of the present application;

[0029] Figure 3 is Figure 2 a local enlarged view of A in FIG. 1;

[0030] Figure 4 is a specific exploded view of the skin suture auxiliary positioning member of the embodiment of the present application;

[0031] Figure 5 is Figure 4 a local enlarged view of B in FIG. 1;

[0032] Figure 6 is a use state diagram of the skin suture auxiliary positioning member (remove the center cover part) of the embodiment of the present application.

[0033] LIST OF REFERENCE NUMERALS

[0034] 10, scale layer;

[0035] 101, first scale bar;

[0036] 1011, first indication part;

[0037] 102, second scale bar;

[0038] 1021, second indication part;

[0039] 103, connecting part;

[0040] 104, first handle;

[0041] 20, absorption layer;

[0042] 30, adhesive layer;

[0043] 40, holding layer;

[0044] 401, central covering part;

[0045] 402, peripheral covering part;

[0046] 403, tear line;

[0047] 404, second handle.

[0048] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0049] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application, and all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present application belong to the scope of protection of the present application.

[0050] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0051] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0052] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through the indirect connection of intermediate medium, can be the communication of two element interiors. For the ordinary skilled in the art, can understand the concrete meaning of the above terms in the utility model according to specific circumstances.

[0053] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on the surface" of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0054] The skin suture auxiliary positioning member of the utility model embodiment is described in detail below with reference to the drawings.

[0055] Referring to Figures 1 to 6 As shown in the figure, the skin suture auxiliary positioning member provided by the utility model embodiment comprises a scale layer 10, an absorption layer 20, an adhesive layer 30 and a retaining layer 40.

[0056] Specifically, the scale layer 10 is a transparent plastic film, and the scale layer 10 comprises a first scale bar 101, a second scale bar 102 and a connecting part 103 connected to one end of the first scale bar 101 and the second scale bar 102, and a gap area for exposing a surgical incision is defined between the first scale bar 101 and the second scale bar 102. A plurality of first scale lines are arranged on the first scale bar 101, a plurality of second scale lines are arranged on the second scale bar 102, the plurality of first scale lines and the plurality of second scale lines are in one-to-one correspondence, and the interval between two adjacent first scale lines is equal to the interval between two adjacent second scale lines corresponding to the first scale lines.

[0057] The scale layer 10 can be made of transparent flexible plastic film, such as low-density polyethylene (LDPE), polyvinyl chloride (PVC). In use, the first scale bar 101 and the second scale bar 102 are located on both sides of the surgical incision in the width direction, and the first scale bar 101 and the second scale bar 102 are parallel to each other. The first scale bar 101 and the second scale bar 102 provide accurate visual reference for the doctor, so that the corresponding needle entry points can be accurately selected on both sides of the incision during suturing, thereby significantly reducing the problem of skin wrinkles caused by improper suturing.

[0058] The absorption layer 20 is provided at the bottom of the scale layer 10, and the shape of the absorption layer 20 is adapted to the shape of the scale layer 10, to absorb the body fluids exuded from the surgical incision. The absorption layer 20 is usually made of materials with high water absorption, such as medical cotton or water-absorbing fibers. The main function of the absorption layer 20 is to absorb the body fluids exuded around the surgical incision, keeping the area around the incision clean and dry. This not only helps to maintain a good surgical environment, but also prevents the body fluids from contaminating the first scale bar 101 and the second scale bar 102, ensuring that the first scale bar 101 and the second scale bar 102 always have clear scales.

[0059] The adhesive layer 30 is provided at the bottom of the absorption layer 20, and the width dimension of the adhesive layer 30 is smaller than the width dimension of the absorption layer 20, to be adhered and fixed to the body surface of the human body. The adhesive layer 30 is usually made of medical-grade adhesive materials, such as silicone or acrylate adhesive. The width of this layer is smaller than the absorption layer 20 above, and the design purpose is to provide sufficient adhesion while not affecting the function of the absorption layer 20. The absorption layer 20 can partially contact the skin and thus absorb the exudate. By adhering the adhesive layer 30 to the patient's skin, the entire positioning device can be firmly fixed to the surgical incision site, ensuring that the positioning device remains stable during the entire surgical procedure and does not affect the accuracy due to movement.

[0060] It can be understood that the bottom surface of the adhesive layer 30 is usually provided with a release film, which plays a protective role in isolating the adhesive layer 30 before use. When in use, the release film can be removed before the adhesive layer 30 is pasted to the patient's skin.

[0061] The holding layer 40 is transparent plastic material and has a higher hardness than the scale layer 10, which is used to keep the shape of the scale layer 10 unchanged before use, and can be removed at least partially to expose the gap area when in use. The holding layer 40 can be made of transparent plastic material, such as polyethylene terephthalate (PET), polycarbonate (PC), or high-density polyethylene (HDPE). The hardness of this layer is higher than that of other layers, and the purpose is to keep the shape of the entire positioning device stable before use, and the thickness is usually between 0.2mm and 0.5mm. The holding layer 40 completely covers the underlying scale layer 10 and plays a protective role to prevent the scale layer 10 from deforming or being damaged during storage and transportation. In actual use, the holding layer 40 can be partially or completely removed to expose the underlying scale layer 10 and the surgical area. This design not only guarantees the integrity of the product before use, but also does not affect its application in surgery.

[0062] The use process of the skin suture auxiliary positioning device is briefly described below.

[0063] When the surgical incision needs to be sutured after the operation is completed, the medical staff needs to ensure that the area around the surgical incision is clean. At the same time, the sterile skin suture auxiliary positioning device is prepared.

[0064] Open and remove the sterile packaging of the positioning device, remove the release film, and roughly align the positioning device with the surgical incision, ensuring that the incision is in the center of the gap area between the first scale bar 101 and the second scale bar 102. At this time, the holding layer 40 is still completely covered on the scale layer 10. After ensuring the correct position, the adhesive layer 30 is attached to the patient's skin, so that the positioning device is fixed in the surgical incision area, and the first scale bar 101 and the second scale bar 102 are respectively located on both sides of the surgical incision in the width direction and remain parallel.

[0065] After ensuring that the positioning device is correctly and fixedly pasted, the holding layer 40 or a part of the holding layer 40 is carefully removed, so that the surgical incision is completely exposed.

[0066] Using the first scale line on the first scale bar 101 and the second scale line on the second scale bar 102 as a reference, the doctor can accurately select the corresponding needle entry point. Usually, the same scale position on both sides of the surgical incision is sutured to ensure the uniformity and symmetry of the suture. After completing the suture, the suture effect is carefully checked. Finally, the positioning device is slowly peeled off from one end with care.

[0067] The skin suture auxiliary positioning piece provided by the embodiment of the utility model, the transparent scale layer 10 cooperates with the first scale line and the second scale line which are accurately corresponding, provides accurate visual reference for doctors, makes the needle insertion positions on both sides of the incision accurately corresponding, greatly reduces the defects such as wrinkles in the suture process. The absorption layer 20 can absorb the exudate remaining around the surgical incision, helps to keep the surrounding area clean, and prevents the first scale line and the second scale line from being contaminated by the exudate, ensuring that the first scale line and the second scale line are clearly visible. The adhesive layer 30 is pasted on the body surface, ensuring the stability during use, and at the same time, it is convenient and simple to use. The maintaining layer 40 can maintain the stable form of the positioning piece before use, so that the positioning piece can be accurately pasted to the surgical incision position, especially the first scale bar 101 and the second scale bar 102 can be accurately and correspondingly located on both sides of the surgical incision, avoiding misalignment of the first scale bar 101 and the second scale bar 102, and the surgical area can be exposed by partially removing during use. In this way, it is ensured that the scales on both sides of the positioning piece accurately correspond, improving the accuracy and reliability of positioning. In other words, the positioning piece with the multi-layer structure not only improves the accuracy and consistency of suture, but also takes into account the practicality and hygiene requirements, providing a simple and effective skin suture auxiliary positioning tool for doctors, and improving the quality of surgical incision suture.

[0068] In some embodiments of the utility model, the maintaining layer 40 includes a central covering part 401 and a peripheral covering part 402, the area of the central covering part 401 is substantially equal to the area of the gap area, and the area of the peripheral covering part 402 is substantially equal to the area of the scale layer 10.

[0069] The central covering part 401 and the peripheral covering part 402 are connected through a tear line 403, so that the central covering part 401 can be torn and removed to expose the gap area during use.

[0070] In this embodiment, the maintaining layer 40 includes a central covering part 401 and a peripheral covering part 402, and the area of the central covering part 401 is substantially equal to the area of the gap area. This size matching ensures that the surgical incision area for observation and operation can be accurately exposed when the central covering part 401 is removed. Through this design, medical staff can accurately expose the required surgical area without affecting the surrounding scale area.

[0071] The area of the peripheral covering part 402 is substantially equal to the area of the scale layer 10. The existence of the peripheral covering part 402 ensures that the entire scale layer 10 is fully protected before the product is used, preventing possible contamination or damage.

[0072] The central cover portion 401 and the peripheral cover portion 402 are connected by a tear line 403. This tear line 403 allows the user to easily separate the central cover portion 401 and the peripheral cover portion 402. In actual use, after the entire positioning member is fixed to the skin, the central cover portion 401 can be carefully removed along the tear line 403. After the central cover portion 401 is removed, the surgical incision area is exposed, while the surrounding scale area is protected.

[0073] It should be noted that before the central cover portion 401 is removed, since the peripheral cover portion 402 and the central cover portion 401 are integrated as a whole, they cover the scale layer 10, and can keep the first scale bar 101 and the second scale bar 102 relatively fixed, so that after the positioning member is attached to the skin, the first scale bar 101 and the second scale bar 102 can keep accurate correspondence, and only such accurate correspondence can ensure that the needle can be accurately inserted and sutured according to the scale values.

[0074] In an embodiment of the present application, the peripheral cover portion 402 comprises a substrate layer and a metal-based antibacterial layer, the metal-based antibacterial layer is coated on the upper surface of the substrate layer, and the metal-based antibacterial layer contains a metal-based antibacterial agent.

[0075] The substrate layer can be made of high-density polyethylene (HDPE) material. HDPE is selected as the substrate based on its excellent physical properties and chemical stability. HDPE has high strength and toughness, which can effectively maintain the shape of the scale layer 10. At the same time, the good chemical stability of HDPE ensures that it will not react adversely with the metal-based antibacterial layer. The thickness of the substrate layer is usually controlled between 0.1mm and 0.3mm, for example, a 0.2mm thick HDPE film can be selected.

[0076] The metal-based antibacterial agent of the metal-based antibacterial layer can use nano-silver particles, zinc oxide, copper and copper compounds, etc. Silver ions have broad-spectrum antibacterial effect and good inhibitory effect on various bacteria and fungi. In addition to the antibacterial effect, zinc oxide also has certain anti-inflammatory and wound healing functions. Copper ions can effectively inhibit the growth of various microorganisms and have a lasting antibacterial effect. The thickness of the metal-based antibacterial layer is generally between 0.01mm and 0.05mm. The preparation process of the metal-based antibacterial layer usually involves uniformly dispersing nano-silver particles in a suitable polymer matrix, such as polyurethane or acrylate, and then applying it to the surface of the HDPE substrate through a coating process.

[0077] The peripheral cover portion 402 with the above structure provides additional antibacterial function, and the surrounding surgical environment provides a certain degree of antibacterial protection. Moreover, since the antibacterial layer is located on the outermost layer, it can play a role throughout the use of the product, and improve the safety and health ability in the operation.

[0078] In one embodiment of the present application, the first scale bar 101 is provided with a plurality of first indicating parts 1011 at equal intervals along its length direction, each of the first indicating parts 1011 protrudes to one side of the second scale bar 102 along the width direction of the first scale bar 101, and each of the first indicating parts 1011 is provided with a scale reading and opposite to a corresponding first scale line.

[0079] The second scale bar 102 is provided with a plurality of second indicating parts 1021 at equal intervals along its length direction, each of the second indicating parts 1021 protrudes to one side of the first scale bar 101 along the width direction of the second scale bar 102, and each of the second indicating parts 1021 is provided with a scale reading and opposite to a corresponding second scale line.

[0080] Since the first indicating part 1011 and the second indicating part 1021 protrude inward, the doctor can directly use the first indicating part 1011 and the corresponding second indicating part 1021 as the needle insertion reference point when suturing, so that the doctor can more accurately determine the needle insertion point, and the needle insertion operation is more accurate and convenient.

[0081] The scale reading on the corresponding first indicating part 1011 is the same as the scale reading on the second indicating part 1021. It is worth noting that the scale readings on the corresponding first indicating part 1011 and the second indicating part 1021 are exactly the same. This consistent design greatly simplifies the scale line matching work of the doctor during suturing. For example, if the doctor chooses to suture at the "5" scale on the first scale bar 101, he can easily find the corresponding "5" scale on the second scale bar 102, thereby ensuring the symmetry and uniformity of the suture.

[0082] In this embodiment, the first scale bar 101 and the second scale bar 102 with the above structure are used, and the protruding first indicating part 1011 and the second indicating part 1021 are used to realize visual enhancement and instantaneous judgment, which not only improves the accuracy of suturing, but also increases the convenience and efficiency of operation.

[0083] Preferably, the first indicating part 1011 and the second indicating part 1021 are formed into a triangle or a trapezoid, and the width thereof gradually decreases from the outside to the inside, so that the first indicating part 1011 and the second indicating part 1021 keep a small size at the end close to the inside, realizing the function of accurate indication, and facilitating the doctor to perform the needle insertion operation at the position indicated by the end close to the inside, that is, to maintain the accuracy of needle insertion.

[0084] Advantageously, the first indication part 1011 and the second indication part 1021 both protrude from the inner edge of the absorbent layer 20. The first indication part 1011 and the second indication part 1021 can protrude slightly from the inner edge of the absorbent layer 20, for example, 2mm to 5mm. In this way, while ensuring the reference for the doctor to indicate the needle insertion, the first indication part 1011 and the second indication part 1021 do not affect the operation space of the doctor.

[0085] In an embodiment of the present application, the absorbent layer 20 includes an upper absorbent layer 20 and a lower absorbent layer 20, the lower absorbent layer 20 is made of a first absorbent material for quickly absorbing initial exudate, and the upper absorbent layer 20 is made of a second absorbent material for long-term storage of absorbed liquid, the capacity of the first absorbent material is less than the capacity of the second absorbent material, and a semi-permeable membrane is arranged between the upper absorbent layer 20 and the lower absorbent layer 20 to allow one-way flow of liquid from the lower absorbent layer 20 to the upper absorbent layer 20.

[0086] The main function of the lower absorbent layer 20 is to quickly absorb the residual exudate in the surrounding area of the incision. The lower absorbent layer 20 is in the rapid absorption capacity. Therefore, the first absorbent material is usually selected from materials with high water absorption rate, such as modified fiber cloth, non-woven fabric, etc. These materials have excellent capillary action and surface adsorption capacity, and can absorb a large amount of liquid in a very short time.

[0087] The main function of the upper absorbent layer 20 is to store the absorbed liquid for a long time. The second absorbent material is selected for large capacity, and common materials include superabsorbent resin, cellulose sponge or superabsorbent polymer. These materials can absorb and hold multiple times their own weight of liquid, ensuring sustained absorption capacity during long-term surgery.

[0088] It is worth noting that between the upper absorbent layer 20 and the lower absorbent layer 20, a semi-permeable membrane is arranged. The semi-permeable membrane allows one-way flow of liquid from the lower absorbent layer 20 to the upper absorbent layer 20, but prevents reverse flow of liquid. The semi-permeable membrane is usually made of a polymer material with a predetermined pore size, such as polytetrafluoroethylene (PTFE) or polyethylene (PE) microporous membrane. The pore size of such a membrane is accurately controlled to allow liquid molecules to pass through, but prevent larger molecules or bacteria from passing through, usually between 0.1-1 microns.

[0089] The design of the semi-permeable membrane ensures one-way flow of liquid, prevents the backflow of liquid absorbed by the upper layer to the lower layer, and greatly improves the overall absorption efficiency and use comfort of the product.

[0090] The design of the multi-layer structure of the absorbent layer 20 in this embodiment is that the lower absorbent layer 20 can quickly absorb the residual exudate and prevent the liquid from accumulating on the wound surface. As the liquid is quickly absorbed, the semi-permeable membrane will guide it to the upper absorbent layer 20 for long-term storage. This design ensures that the area around the surgical incision remains dry at all times, not only improving comfort, but also preventing contamination of the first scale bar 101 and the second scale bar 102, keeping the first scale bar 101 and the second scale bar 102 clear of scale.

[0091] In an embodiment of the present application, the adhesive layer 30 is provided with a microneedle array structure, which comprises a plurality of soluble microneedles that can penetrate the epidermis and gradually dissolve after contact with the skin.

[0092] The microneedle array structure is composed of a large number of small, soluble needle-like protrusions that can penetrate the epidermis but not reach the dermis, thus causing no pain or bleeding. The size of the microneedle is usually between a few hundred microns and one millimeter. Common materials for soluble microneedles include biocompatible polymers such as hyaluronic acid, poly-lactic-co-glycolic acid (PLGA), or water-soluble sugars. These materials can gradually dissolve after contact with the skin tissue fluid.

[0093] The design of the microneedle array structure is not limited to a single function. Depending on the surgical needs, different types of drugs or active ingredients can be loaded into the microneedles. For example, local anesthetics can be included to reduce pain at the surgical site, antibiotics to prevent infection, or growth factors to promote wound healing.

[0094] Due to the high humidity around the surgical incision, there may be problems such as poor adhesion and displacement of the positioning member in actual application. In this embodiment, the microneedle array structure is provided on the surface of the adhesive layer 30, which can significantly enhance the adhesion of the adhesive layer 30 after being attached to the skin, achieving better adhesion and preventing displacement and other problems.

[0095] In an embodiment of the present application, the first handle 104 is provided on the connecting portion 103, and the second handle 404 is provided on the center covering portion 401 away from the connecting portion 103. In this way, the first handle 104 is used to easily remove the positioning member after the incision is sutured. The second handle 404 is used to remove the center covering portion 401 after the positioning member is attached to the skin.

[0096] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0097] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the application concept of the present application are included in the patent protection scope of the present application.

Claims

1. A skin suturing aid positioning member, characterized by, The utility model relates to a kind of surgical incision marking device, including: Scale layer, the scale layer is transparent plastic film piece, the scale layer includes first scale bar, second scale bar and the connecting part connected to the first scale bar and second scale bar one end, the first scale bar and second scale bar between define gap area to expose surgical incision; Absorbing layer, the absorbing layer is arranged at the bottom of the scale layer, the shape of the absorbing layer is adapted to the shape of the scale layer, to absorb the body fluid exuded by surgical incision; Adhesive layer, the adhesive layer is arranged at the bottom of the absorbing layer, and the width size of the adhesive layer is less than the width size of the absorbing layer, to be fixed on the surface of human body by adhesion; Retaining layer, the retaining layer is arranged above the scale layer and covers the scale layer completely, the retaining layer is transparent plastic material and the hardness is greater than the scale layer, for keeping the shape of the scale layer unchanged before use, and can be removed at least partially to expose the gap area when in use; Wherein, a plurality of first scale lines are provided on the first scale bar, a plurality of second scale lines are provided on the second scale bar, the plurality of first scale lines and the plurality of second scale lines correspond one by one, the interval between adjacent two first scale lines is equal to the interval between adjacent two corresponding second scale lines.

2. The skin closure adjunct of claim 1, wherein, The retaining layer includes a central covering portion and a peripheral covering portion, the area of the central covering portion is substantially equal to the area of the gap area, and the area of the peripheral covering portion is substantially equal to the area of the scale layer. The central covering portion and the peripheral covering portion are connected by a tear line, so that the central covering portion can be torn and removed to expose the gap area when in use.

3. The skin closure adjunct of claim 2, wherein, The peripheral covering portion includes a substrate layer and a metal-based antibacterial layer, the metal-based antibacterial layer is coated on the upper surface of the substrate layer, and the metal-based antibacterial layer contains a metal-based antibacterial agent.

4. The skin closure adjunct of claim 1, wherein, A plurality of first indication portions are provided on the first scale bar at equal intervals along the length direction thereof, each first indication portion protrudes towards one side of the second scale bar along the width direction of the first scale bar, each first indication portion is provided with a scale reading and opposite to a corresponding first scale line; A plurality of second indication portions are provided on the second scale bar at equal intervals along the length direction thereof, each second indication portion protrudes towards one side of the first scale bar along the width direction of the second scale bar, each second indication portion is provided with a scale reading and opposite to a corresponding second scale line; The scale reading on the corresponding first indication portion is the same as the scale reading on the second indication portion.

5. The skin closure adjunct of claim 4, wherein, The first indication portion and the second indication portion are formed in a triangular or trapezoidal shape, and the width thereof gradually decreases from the outside to the inside.

6. The skin closure adjunct of claim 4, wherein, The first indication portion and the second indication portion protrude from the inner edge of the absorbing layer.

7. The skin closure adjunct of claim 1, wherein, The absorption layer comprises an upper absorption layer and a lower absorption layer, the lower absorption layer is made of a first absorption material for rapidly absorbing initial exudate; the upper absorption layer is made of a second absorption material for long-term storage of absorbed liquid, the capacity of the first absorption material is less than that of the second absorption material; a semi-permeable membrane is arranged between the upper absorption layer and the lower absorption layer to allow one-way flow of liquid from the lower absorption layer to the upper absorption layer.

8. The skin closure adjunct of claim 1, wherein, The surface of the adhesive layer is provided with a microneedle array structure, and the microneedle array structure comprises a plurality of soluble microneedles which can penetrate the epidermis and gradually dissolve after contacting the skin.

9. The skin closure adjunct of claim 2, wherein, A first handle is arranged on the connecting part, and a second handle is arranged on the center covering part away from one end of the connecting part.

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