Auxiliary positioning piece for skin suture

Abstract

The invention discloses a skin suture auxiliary positioning piece which comprises a scale layer, an absorption 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 invention relates to a surgical suturing auxiliary device, in particular to a skin suturing auxiliary positioning piece. Background Art

[0002] In the field of surgery, suturing of surgical incisions is a crucial step that directly affects the quality of wound healing and the speed of postoperative recovery of patients. Ideal suturing should enable precise alignment of the skin on both sides of the incision and maintain uniform tension, thereby promoting rapid wound healing, reducing scar formation, and restoring the 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, and its tension and thickness vary significantly in different parts. In addition, tissue edema, bleeding, and the use of anesthetics during surgery will change the normal state of the skin, increasing the difficulty of precise suturing.

[0004] Traditional suturing methods mainly rely on the doctor's experience and technique. Doctors usually need to judge the location of the needle point with the naked eye and control the depth and tension of the suture by 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 disadvantages of this method are its subjectivity and non-repeatability. Even for the same doctor, there may be differences in suturing performed at different times or under different conditions. This difference may cause the skin needle insertion positions on both sides of the incision to not be completely aligned, resulting in suture defects. The most common suture defects include skin wrinkles, uneven edges, etc. These problems not only affect the beauty of the wound, but may also lead to scar hyperplasia, etc. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the purpose of the present invention is to provide a skin suture auxiliary positioning member.

[0006] To achieve the above object, the skin suturing auxiliary positioning member according to an embodiment of the present invention includes:

[0007] A scale layer, the scale layer is a transparent plastic film, the scale layer comprises a first scale bar, a second scale bar and a connecting portion connected to one end of the first scale bar and the second scale bar, and a gap area for revealing a surgical incision is defined between the first scale bar and the second scale bar;

[0008] An absorption layer, which is arranged at the bottom of the scale layer, and the shape of the absorption layer is adapted to the shape of the scale layer, and is used to absorb body fluids exuded from the surgical incision;

[0009] An adhesive layer, which is disposed at the bottom of the absorbent layer and has a width smaller than that of the absorbent layer, and is used for adhesively fixing the adhesive layer on the surface of a human body;

[0010] A retaining layer, the retaining layer is arranged above the scale layer and completely covers the scale layer, the retaining layer is made of a transparent plastic material and has a harderness than the scale layer, and is used to keep the shape of the scale layer unchanged before use, and can be at least partially removed during use to reveal the gap area;

[0011] Among them, the first scale bar is provided with multiple first scale lines, and the second scale bar is provided with multiple second scale lines. The multiple first scale lines and the multiple second scale lines correspond to each other one by one, and the spacing between two adjacent first scale lines is equal to the spacing between corresponding two adjacent second scale lines.

[0012] According to the skin suture auxiliary positioning piece provided by the embodiment of the present invention, the transparent scale layer cooperates with the first scale line and the second scale line that accurately correspond to each other, providing an accurate visual reference for the doctor, so that the needle insertion positions on both sides of the incision can accurately correspond, greatly reducing the defects such as wrinkles that occur during the suturing process. The absorption layer can absorb the residual exudate around the surgical incision, which 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 is pasted on the body surface to ensure stability during use, and at the same time, it is easy to use. The retention layer can maintain the positioning piece in a stable shape before use, so that the positioning piece can be accurately pasted to the surgical incision position, especially so that the first scale bar and the second scale bar can be accurately located on both sides of the surgical incision, avoiding the first scale bar and the second scale bar from being misplaced, and can be partially removed during use to expose the surgical area, so that the scales on both sides of the positioning piece are accurately corresponding, and the accuracy and reliability of positioning are improved. In other words, the multi-layer positioning piece not only improves the accuracy and consistency of suturing, but also takes into account practicality and hygiene requirements, providing doctors with a simple and effective skin suturing auxiliary positioning tool to improve the quality of surgical incision suturing.

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

[0014] According to one embodiment of the present invention, the retaining layer comprises 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 region, and the area of ​​the peripheral covering portion is substantially equal to the area of ​​the scale layer;

[0015] The central covering portion and the peripheral covering portion are connected via a tear line, so that the central covering portion can be torn and removed during use to reveal the gap area.

[0016] According to an embodiment of the present invention, 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.

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

[0018] The second scale bar is provided with a plurality of second indicating portions at equal intervals along the length direction thereof, each of the second indicating portions protrudes toward one side of the first scale bar along the width direction of the second scale bar, each of the second indicating portions is provided with a scale reading and is opposite to a corresponding second scale line;

[0019] The corresponding scale reading on the first indicating part is the same as the scale reading on the second indicating part.

[0020] According to an embodiment of the present invention, the first indicating portion and the second indicating portion are both formed in a triangle or a trapezoid, and the widths thereof gradually decrease from the outer side to the inner side.

[0021] According to an embodiment of the present invention, both the first indicating portion and the second indicating portion protrude from the inner edge of the absorption layer.

[0022] According to one embodiment of the present invention, the absorption layer includes an upper absorption layer and a lower absorption layer, the lower absorption layer is made of a first absorption material and is used to quickly absorb initial exudate; the upper absorption layer is made of a second absorption material and is used to store the absorbed liquid for a long time, and the capacity of the first absorption material is smaller than that of the second absorption material; a semipermeable membrane is provided between the upper absorption layer and the lower absorption layer to allow liquid to flow unidirectionally from the lower absorption layer to the upper absorption layer.

[0023] According to one embodiment of the present invention, a microneedle array structure is provided on the surface of the adhesive layer, and the microneedle array structure includes a plurality of soluble microneedles. The soluble microneedles can penetrate the epidermis and gradually dissolve after contacting the skin.

[0024] According to an embodiment of the present invention, a first handle is provided on the connecting portion, and a second handle is provided on an end of the central covering portion away from the connecting portion.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 2 is a schematic structural diagram of a skin suture auxiliary positioning member according to an embodiment of the present invention;

[0028] Figure 2 is an exploded view of a skin suture auxiliary positioning member according to an embodiment of the present invention;

[0029] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0030] Figure 4 This is a detailed exploded view of the skin suture auxiliary positioning member according to an embodiment of the present invention;

[0031] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0032] Figure 6 4 is a diagram showing the use status of the skin suture auxiliary positioning member (with the central covering portion removed) according to an embodiment of the present invention.

[0033] Reference numerals:

[0034] 10. Scale layer;

[0035] 101, first scale bar;

[0036] 1011. First instruction unit;

[0037] 102, second scale bar;

[0038] 1021, second instruction unit;

[0039] 103. Connecting part;

[0040] 104. First handle;

[0041] 20. Absorption layer;

[0042] 30. Adhesive layer;

[0043] 40. Keep the layer;

[0044] 401, center covering part;

[0045] 402, peripheral covering part;

[0046] 403, tear line;

[0047] 404. Second handle.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0050] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “circumferential”, “radial”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] The skin suture auxiliary positioning member according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] Reference Figures 1 to 6 As shown, the skin suture auxiliary positioning piece provided according to an embodiment of the present invention includes 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 includes a first scale bar 101, a second scale bar 102, and a connecting portion 103 connected to one end of the first scale bar 101 and the second scale bar 102, and a gap area for revealing 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, and 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 correspond to each other one by one, and the spacing between two adjacent first scale lines is equal to the spacing between two corresponding adjacent second scale lines.

[0057] The scale layer 10 can be made of a transparent flexible plastic film, such as low-density polyethylene (LDPE) or polyvinyl chloride (PVC). When in use, the first scale bar 101 and the second scale bar 102 are located on both sides of the width direction of the surgical incision, 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 doctors with accurate visual references, so that they can accurately select corresponding needle insertion points on both sides of the incision when suturing, thereby significantly reducing problems such as skin wrinkles caused by improper suturing.

[0058] The absorption layer 20 is arranged at the bottom of the scale layer 10. The shape of the absorption layer 20 is adapted to the shape of the scale layer 10, and is used to absorb the body fluids exuded from the surgical incision. The absorption layer 20 is usually made of a material with high water absorption, such as medical cotton or absorbent fiber. The main function of the absorption layer 20 is to absorb the body fluids exuded around the surgical incision and keep the area around the incision clean and dry. This is not only conducive to maintaining a good surgical environment, but also prevents 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 are always clearly marked.

[0059] The adhesive layer 30 is arranged at the bottom of the absorption layer 20, and the width of the adhesive layer 30 is smaller than the width of the absorption layer 20, so as to be bonded and fixed to the surface of the human body. The adhesive layer 30 is usually made of medical-grade viscous materials, such as silicone or acrylic adhesive. The width of this layer is smaller than that of the absorption layer 20 above. 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 absorb exudate. Through the bonding of the adhesive layer 30 to the patient's skin, the entire positioning piece can be firmly fixed to the surgical incision site, ensuring that the positioning piece remains stable during the entire operation and the accuracy will not be affected by movement.

[0060] It is understandable that the bottom surface of the adhesive layer 30 is usually provided with a release film, and the release film plays an isolation and protection role for the adhesive layer 30 before use. When in use, the release film can be removed and then the adhesive layer 30 is adhered to the patient's skin.

[0061] The retaining layer 40 is arranged above the scale layer 10 and completely covers the scale layer 10. The retaining layer 40 is made of transparent plastic material and has a hardness greater than that of the scale layer 10. It is used to keep the shape of the scale layer 10 unchanged before use, and can be at least partially removed during use to reveal the gap area. The retaining 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 piece stable before use. Its thickness is usually between 0.2mm and 0.5mm. The retaining layer 40 completely covers the scale layer 10 below, plays a protective role, and prevents the scale layer 10 from being deformed or damaged during storage and transportation. In actual use, the retaining layer 40 can be partially or completely removed to expose the scale layer 10 and the surgical area below. This design not only ensures the integrity of the product before use, but also does not affect its application in surgery.

[0062] The following briefly describes the use of the skin suture auxiliary positioning piece.

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

[0064] Open and remove the sterile packaging of the positioning piece, remove the release film, and roughly align the positioning piece with the surgical incision, ensuring that the incision is located in the center of the gap between the first scale bar 101 and the second scale bar 102. At this time, the retaining layer 40 still completely covers the scale layer 10. After ensuring the accurate position, the adhesive layer 30 is attached to the patient's skin, so that the positioning piece 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 piece is correctly adhered and fixed, the retaining layer 40 or a portion of the retaining layer 40 is carefully removed to fully expose the surgical incision.

[0066] Using the first scale line on the first scale bar 101 and the second scale line on the second scale bar 102 as reference, the doctor can accurately select the corresponding needle insertion point. Usually, suturing is performed at the same scale position on both sides of the surgical incision to ensure the uniformity and symmetry of the suturing. After the suturing is completed, the suturing effect is carefully checked. Finally, the positioning piece is carefully peeled off from one end.

[0067] According to the skin suture auxiliary positioning piece provided by the embodiment of the present invention, the transparent scale layer 10 cooperates with the first scale line and the second scale line that accurately correspond to each other, providing an accurate visual reference for the doctor, so that the needle insertion positions on both sides of the incision can accurately correspond, greatly reducing the defects such as wrinkles that occur during the suturing process. The absorption layer 20 can absorb the residual exudate around the surgical incision, which 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 to ensure stability during use, and at the same time, it is easy to use. The retaining layer 40 can maintain the positioning piece to maintain a stable shape before use, so that the positioning piece can be accurately pasted to the surgical incision position, especially so that the first scale bar 101 and the second scale bar 102 can be accurately located on both sides of the surgical incision, avoiding the first scale bar 101 and the second scale bar 102 from being misplaced, and can be partially removed during use to expose the surgical area, so that the scales on both sides of the positioning piece are accurately corresponding, and the accuracy and reliability of positioning are improved. In other words, the multi-layer positioning piece not only improves the accuracy and consistency of suturing, but also takes into account practicality and hygiene requirements, providing doctors with a simple and effective skin suturing auxiliary positioning tool to improve the quality of surgical incision suturing.

[0068] In some embodiments of the present invention, the retaining layer 40 includes a central covering portion 401 and a peripheral covering portion 402 , the area of ​​the central covering portion 401 is substantially equal to the area of ​​the gap region, and the area of ​​the peripheral covering portion 402 is substantially equal to the area of ​​the scale layer 10 .

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

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

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

[0072] The central covering part 401 and the peripheral covering part 402 are connected by a tear line 403. The tear line 403 allows the user to easily separate the central covering part 401 from the peripheral covering part 402. In actual use, after the entire positioning piece is adhered and fixed to the skin, the central covering part 401 can be carefully removed along the tear line 403. After the central covering part 401 is removed, the surgical incision area can be exposed while maintaining the protection of the surrounding scale area.

[0073] It should be noted that before the central covering portion 401 is removed, since the peripheral covering portion 402 and the central covering portion 401 are an integrated whole, they are covered on the scale layer 10, and can keep the first scale bar 101 and the second scale bar 102 relatively fixed. Then, after the positioning piece is attached to the skin, the first scale bar 101 and the second scale bar 102 can maintain accurate correspondence. This accurate correspondence can ensure that the purpose of precise suturing can be achieved when the needle is inserted and suturing is performed according to these scale values.

[0074] In one embodiment of the present invention, the peripheral covering portion 402 includes a substrate layer and a metal-based antibacterial layer, wherein 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, and 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 0.1 mm and 0.3 mm, for example, a 0.2 mm thick HDPE film can be selected.

[0076] The metal-based antibacterial agent of the metal-based antibacterial layer can be nanosilver particles, zinc oxide, copper and copper compounds. Silver ions have a broad-spectrum antibacterial effect and have a good inhibitory effect on a variety of 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 a variety of 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 nanosilver particles in an appropriate 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 covering portion 402 with the above structure provides additional antibacterial function, providing a certain degree of antibacterial protection for the surrounding surgical environment, and because the antibacterial layer is located at the outermost layer, it can play a role in the entire process of product use, thereby improving the safety and hygiene capabilities during surgery.

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

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

[0080] Since the first indicating portion 1011 and the second indicating portion 1021 protrude inward, when the doctor is suturing, the first indicating portion 1011 and the corresponding second indicating portion 1021 can be directly used as reference points for needle insertion. This makes it easier for the doctor to determine the needle insertion point more accurately, and the needle insertion operation is more accurate and convenient.

[0081] The scale reading on the corresponding first indicator 1011 is the same as the scale reading on the second indicator 1021. It is worth noting that the scale readings on the corresponding first indicator 1011 and the second indicator 1021 are exactly the same. This consistency design greatly simplifies the doctor's scale line comparison work during the suturing process. For example, if the doctor chooses to suturing 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 suturing.

[0082] In this embodiment, the first scale bar 101 and the second scale bar 102 of the upper structure are used to cleverly utilize the protruding first indication part 1011 and the second indication part 1021 to achieve 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 portion 1011 and the second indicating portion 1021 are both formed into a triangle or a trapezoid, and the width thereof gradually decreases from the outer side to the inner side. In this way, the first indicating portion 1011 and the second indicating portion 1021 close to the inner end maintain a smaller size, thereby achieving a precise indicating function, making it convenient for the doctor to perform the needle insertion operation at the position indicated by the inner end, thereby maintaining the accuracy of the needle insertion.

[0084] Advantageously, the first indicator portion 1011 and the second indicator portion 1021 both protrude from the inner edge of the absorbent layer 20. The first indicator portion 1011 and the second indicator portion 1021 only need to protrude slightly from the inner edge of the absorbent layer 20, for example, 2 to 5 mm. In this way, while providing a reference for the doctor to indicate the needle insertion, the first indicator portion 1011 and the second indicator portion 1021 do not affect the doctor's operating space.

[0085] In one embodiment of the present invention, the absorption layer 20 includes an upper absorption layer 20 and a lower absorption layer 20, wherein the lower absorption layer 20 is made of a first absorption material and is used to quickly absorb initial exudate; the upper absorption layer 20 is made of a second absorption material and is used to store the absorbed liquid for a long time, and the capacity of the first absorption material is smaller than that of the second absorption material; a semipermeable membrane is provided between the upper absorption layer 20 and the lower absorption layer 20 to allow liquid to flow unidirectionally from the lower absorption layer 20 to the upper absorption layer 20.

[0086] The main function of the lower absorbent layer 20 is to quickly absorb the exudate remaining in the area around the incision. The lower absorbent layer 20 has a fast absorption capacity. Therefore, the first absorbent material is usually selected from materials with a 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 selection of the second absorbent material is based on its large capacity, and commonly used materials include super absorbent resin, cellulose sponge or super absorbent polymer. These materials can absorb and retain liquid many times their own weight, ensuring continuous absorption capacity during long-term surgery.

[0088] It is worth noting that a semipermeable membrane is provided between the upper absorbent layer 20 and the lower absorbent layer 20. The semipermeable membrane allows liquid to flow from the lower absorbent layer 20 to the upper absorbent layer 20 in one direction, but prevents liquid from flowing in the opposite direction. The semipermeable membrane is usually made of a polymer material with a predetermined pore size, such as a polytetrafluoroethylene (PTFE) or polyethylene (PE) microporous membrane. The pore size of this membrane is precisely 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 semi-permeable membrane design ensures the one-way flow of liquid and prevents the liquid absorbed by the upper layer from flowing back to the lower layer, which greatly improves the overall absorption efficiency and comfort of the product.

[0090] The multi-layered absorption layer 20 of this embodiment is designed so that the lower absorption layer 20 can quickly absorb residual exudate to prevent liquid from accumulating on the wound surface. As the liquid is quickly absorbed, the semipermeable membrane guides it to the upper absorption layer 20 for long-term storage. This design ensures that the area around the surgical incision always remains dry, which not only improves comfort, but also prevents 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.

[0091] In one embodiment of the present invention, a microneedle array structure is provided on the surface of the adhesive layer 30 , wherein the microneedle array structure comprises a plurality of soluble microneedles, and the soluble microneedles can penetrate the epidermis and gradually dissolve after contacting the skin.

[0092] The microneedle array structure consists of a large number of tiny, soluble needle-like protrusions that can penetrate the epidermis but not the dermis, so they do not cause pain or bleeding. The size of the microneedles is usually between a few hundred microns and one millimeter. Common materials for soluble microneedles include biocompatible polymers such as hyaluronic acid, polylactic-co-glycolic acid (PLGA) or water-soluble sugars. These materials can gradually dissolve after contact with skin tissue fluid.

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

[0094] Due to the high humidity in the area around the surgical incision, in actual applications, there may be problems such as loose bonding, resulting in displacement of the positioning piece. In this embodiment, a microneedle array structure is provided on the surface of the adhesive layer 30, which can significantly enhance the adhesion and fixation effect of the adhesive layer 30 after it is attached to the skin, and prevent displacement and other problems.

[0095] In one embodiment of the present invention, a first handle 104 is provided on the connecting portion 103, and a second handle 404 is provided on the end of the central covering portion 401 away from the connecting portion 103. In this way, the first handle 104 is used to facilitate the removal of the positioning member after the incision is sutured. The second handle 404 is used to facilitate the removal of the central covering portion 401 after the positioning member is attached to the skin.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0097] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A skin suture auxiliary positioning member, characterized in that: include: A scale layer, the scale layer is a transparent plastic film, the scale layer comprises a first scale bar, a second scale bar and a connecting portion connected to one end of the first scale bar and the second scale bar, and a gap area for revealing a surgical incision is defined between the first scale bar and the second scale bar; An absorption layer, which is arranged at the bottom of the scale layer, and the shape of the absorption layer is adapted to the shape of the scale layer, and is used to absorb body fluids exuded from the surgical incision; An adhesive layer, which is disposed at the bottom of the absorbent layer and has a width smaller than that of the absorbent layer, and is used for adhesively fixing the adhesive layer on the surface of a human body; A retaining layer, the retaining layer is arranged above the scale layer and completely covers the scale layer, the retaining layer is made of a transparent plastic material and has a harderness than the scale layer, and is used to keep the shape of the scale layer unchanged before use, and can be at least partially removed during use to reveal the gap area; Among them, the first scale bar is provided with multiple first scale lines, and the second scale bar is provided with multiple second scale lines. The multiple first scale lines and the multiple second scale lines correspond to each other one by one, and the spacing between two adjacent first scale lines is equal to the spacing between corresponding two adjacent second scale lines.

2. The skin suturing auxiliary positioning piece according to claim 1, characterized in that: The retaining layer comprises 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 region, 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 via a tear line, so that the central covering portion can be torn and removed during use to reveal the gap area.

3. The skin suturing auxiliary positioning member according to claim 2, characterized in that: 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 suturing auxiliary positioning member according to claim 1, characterized in that: A plurality of first indicating portions are arranged on the first scale bar at equal intervals along the length direction thereof, each of the first indicating portions protrudes toward one side of the second scale bar along the width direction of the first scale bar, each of the first indicating portions is provided with a scale reading and is opposite to a corresponding first scale line; The second scale bar is provided with a plurality of second indicating portions at equal intervals along the length direction thereof, each of the second indicating portions protrudes toward one side of the first scale bar along the width direction of the second scale bar, each of the second indicating portions is provided with a scale reading and is opposite to a corresponding second scale line; The corresponding scale reading on the first indicating part is the same as the scale reading on the second indicating part.

5. The skin suturing auxiliary positioning member according to claim 4, characterized in that: The first indicating portion and the second indicating portion are both formed in a triangle or a trapezoid, and the widths thereof gradually decrease from the outside to the inside.

6. The skin suturing auxiliary positioning member according to claim 4, characterized in that: The first indicator portion and the second indicator portion both protrude from the inner edge of the absorbent layer.

7. The skin suturing auxiliary positioning member according to claim 1, characterized in that: The absorption layer comprises an upper absorption layer and a lower absorption layer, wherein the lower absorption layer is made of a first absorption material and is used to quickly absorb initial exudate; the upper absorption layer is made of a second absorption material and is used to store absorbed liquid for a long time, and the capacity of the first absorption material is smaller than that of the second absorption material; a semipermeable membrane is provided between the upper absorption layer and the lower absorption layer to allow liquid to flow unidirectionally from the lower absorption layer to the upper absorption layer.

8. The skin suturing auxiliary positioning member according to claim 1, characterized in that: The surface of the adhesive layer is provided with a microneedle array structure, wherein the microneedle array structure comprises a plurality of soluble microneedles, and the soluble microneedles can penetrate the epidermis and gradually dissolve after contacting the skin.

9. The skin suturing auxiliary positioning member according to claim 2, characterized in that: The connecting portion is provided with a first handle, and an end of the central covering portion away from the connecting portion is provided with a second handle.

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