A hemostatic patch

Abstract

The application discloses a hemostatic patch, and belongs to the technical field of medical devices. The hemostatic patch comprises a substrate, release paper and hemostatic cotton. The substrate is provided with a glue layer. The hemostatic cotton is arranged at the center of the substrate. The release paper is arranged on both sides of the hemostatic cotton. The release paper comprises first release paper, second release paper and third release paper. The first release paper, the second release paper and the third release paper are arranged in sequence along the direction away from the hemostatic cotton. The hemostatic cotton, the first release paper, the second release paper and the third release paper are adhered to the substrate through the glue layer. The first release paper is provided with a first easy-to-tear line. The first easy-to-tear line divides the release paper to form the first release paper, the second release paper and the third release paper. The application realizes precise pressure control by peeling off or retaining the first release paper, the second release paper and the third release paper, and solves the pain points of uncontrollable pressure and easy displacement in the traditional hemostasis mode. Compared with the traditional cotton ball pressing hemostasis mode, the application does not need manual pressure, reduces the nursing labor cost and improves the nursing efficiency.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, and in particular relates to a hemostatic patch. Background Technology

[0002] In clinical medical puncture procedures, the commonly used method for hemostasis after surgery is to apply pressure with hemostatic cotton balls. However, this method requires medical staff to continuously apply manual pressure for 3-5 minutes to achieve effective hemostasis, which increases the labor cost of nursing care. At the same time, for elderly patients and people with abnormal coagulation function, the pressure time may even need to be extended to more than 10 minutes, resulting in low nursing efficiency.

[0003] In related technologies, hemostatic patches often use a one-piece release paper design, which requires complete removal in one go during peeling. This results in an inability to adjust the exposed area of ​​the adhesive layer, making it difficult to adapt to the different hemostatic pressure requirements of arterial and venous punctures. Especially in superficial venous puncture scenarios, excessive pressure can easily cause vascular compression or displacement of the hemostatic cotton, affecting the hemostatic effect and patient comfort. Utility Model Content

[0004] This application aims to at least address the technical problem in the prior art that makes it difficult to adapt to the differentiated hemostatic pressure requirements such as arterial and venous punctures.

[0005] This application provides a hemostatic patch, comprising: a base, release paper, and hemostatic cotton; An adhesive layer is provided on the substrate, and the hemostatic cotton is placed at the center of the substrate. Release paper is placed on both sides of the hemostatic cotton. The release paper includes a first release paper, a second release paper, and a third release paper. The first release paper, the second release paper, and the third release paper are arranged sequentially in a direction away from the hemostatic cotton. The hemostatic cotton, the first release paper, the second release paper, and the third release paper are respectively bonded to the substrate through the adhesive layer. The release paper is provided with a first tear line, which divides the release paper to form the first release paper, the second release paper, and the third release paper.

[0006] According to one embodiment of this application, the substrate is defined as a first pressure part, a second pressure part, and a third pressure part corresponding to the positions on the substrate, and the elastic coefficients of the first pressure part, the second pressure part, and the third pressure part increase sequentially; or the thicknesses of the first pressure part, the second pressure part, and the third pressure part increase sequentially.

[0007] According to one embodiment of this application, the release paper is further provided with an auxiliary tear-off opening, which extends from the edge of the release paper toward the first easy-tear line and is connected to the first easy-tear line.

[0008] According to one embodiment of this application, the first release paper, the second release paper, and the third release paper are all different colors.

[0009] According to one embodiment of this application, the length of the hemostatic cotton and the first release paper in the first direction is twice the length of the second release paper and the third release paper in the first direction, and the lengths of the hemostatic cotton, the first release paper, the second release paper and the third release paper in the second direction are equal.

[0010] According to one embodiment of this application, the lengths of the hemostatic cotton, the first release paper, the second release paper, and the third release paper in the first direction are 2cm, 2cm, 1cm, and 1cm, respectively; the lengths of the hemostatic cotton, the first release paper, the second release paper, and the third release paper in the second direction are all 2cm; and the thickness of the hemostatic cotton is 0.5cm.

[0011] According to one embodiment of this application, the hemostatic cotton is a hemostatic cotton; and / or, the substrate is a non-woven fabric, and the adhesive layer is a hot melt adhesive.

[0012] According to one embodiment of this application, there are multiple substrates, and a second tear line is provided between each two adjacent substrates, and each two adjacent substrates are connected by the second tear line.

[0013] According to one embodiment of this application, the hemostatic cotton positions of each of the substrates are corresponding; The hemostatic patch has a folded state and an unfolded state. When the hemostatic patch is in the folded state, the hemostatic cotton of two adjacent bases adheres to each other; when the hemostatic patch is in the unfolded state, the hemostatic cotton of two adjacent bases separates from each other.

[0014] According to one embodiment of this application, a notch is further provided between each two adjacent substrates, the notch extending from the edge of the bandage toward the second tear line and connected to the second tear line.

[0015] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects: This application allows for easier removal of the first, second, or third release paper by tearing along the first easy-tear line, thus improving operational efficiency. Simultaneously, the presence of the first easy-tear line also makes the peeling path clearer, reducing tearing damage to the release paper caused by improper force and increasing the success rate of the operation.

[0016] In clinical use, depending on the type of puncture and the patient's coagulation function, the release paper can be peeled off or retained to create different gradient tensions, ensuring a tight fit between the hemostatic cotton and the wound at different puncture sites. This adapts to the varying hemostatic pressure requirements of arterial and venous punctures. For example, arterial puncture requires higher pressure on the wound; in this case, the first, second, and third release papers can be peeled off to apply a third level of pressure to the wound for effective hemostasis. Conversely, venous puncture requires appropriate pressure on the wound; in this case, the first release paper can be peeled off, while the second or third release paper can be selectively retained to apply either the first or second level of pressure to the wound, avoiding excessive pressure on the wound.

[0017] Furthermore, the auxiliary tear cut extends from the edge of the release paper to the first easy-tear line, forming a clear peeling starting point. This allows medical personnel to quickly locate the tearing starting point and perform precise peeling from the auxiliary tear cut along the first easy-tear line. Specifically, the depth of the auxiliary tear cut is controlled at 20%-30% of the release paper thickness, which reduces initial peeling resistance while maintaining the connection strength of the non-peeled area, preventing accidental tearing of the non-peeled area during operation.

[0018] Furthermore, medical staff can adjust the size of the bandage according to the size of the puncture wound. For example, puncture wounds in children are smaller than those in adults. The size of the bandage should be reduced for children's puncture wounds. In practice, excess base can be torn along the second tear line to reduce the size of the bandage, so that the size of the bandage cotton is suitable for the child's puncture wound, ensuring coverage of the puncture wound and improving adaptability.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the hemostatic patch provided in Embodiment 1 of this application; Figure 2 This is an exploded view of the hemostatic patch provided in Embodiment 1 of this application; Figure 3 This is a further exploded view of the hemostatic patch provided in Embodiment 1 of this application; Figure 4 yes Figure 1 A magnified view of a section at point A in the middle; Figure 5 This is one of the structural schematic diagrams of the hemostatic patch provided in Embodiment 2 of this application in its unfolded state; Figure 6This is the second schematic diagram of the hemostatic patch provided in Embodiment 2 of this application in its unfolded state; Figure 7 This is a schematic diagram of the hemostatic patch provided in Embodiment 2 of this application in a folded state.

[0021] Figure label: 100. Base; 110. Adhesive layer; 120. Second tear line; 130. Notch; 200. Hemostatic cotton; 300. Release paper; 310. First release paper; 320. Second release paper; 330. Third release paper; 340. First easy-tear line; 350. Auxiliary tear cut. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] In medical puncture procedures, such as routine intravenous infusion puncture, indwelling needle puncture, and arterial puncture, hemostasis is a crucial and complex step. Traditional hemostasis methods have many drawbacks. For example, manually applying pressure with a cotton ball for extended periods can cause fatigue for both patients and medical staff. Furthermore, the cotton ball is prone to displacement, leading to secondary bleeding, and there are issues such as high nursing labor costs.

[0024] The following is for reference. Figures 1-7 A hemostatic patch according to an embodiment of this application is described.

[0025] like Figures 1-3 As shown, this hemostatic patch is used for wound hemostasis and care after medical puncture procedures and is suitable for different clinical scenarios such as arterial puncture and venous puncture. It consists of: a base of 100, release paper of 300, and hemostatic cotton of 200.

[0026] The substrate 100 is made of flexible medical-grade material with good biocompatibility and breathability. For example, the substrate 100 can be non-woven fabric, and the surface of the substrate 100 is coated with an adhesive layer 110, which can be hot melt adhesive for bonding the release paper 300 and the hemostatic cotton 200.

[0027] The hemostatic cotton 200 can be placed at the center of the base 100 and can be composed of highly absorbent fibers and a coagulation factor complex for rapid absorption of exudate.

[0028] Specifically, the edges of the hemostatic cotton 200 are treated with a progressive thinning process to create a natural transition when it comes into contact with the skin, avoiding the pressure-induced bruising caused by the excessively thick edges of traditional hemostatic patches.

[0029] Release paper 300 is provided on both sides of the hemostatic cotton 200. The release paper 300 has two first tear lines 340. The two first tear lines 340 divide the release paper 300 to form a first release paper 310, a second release paper 320 and a third release paper 330. The first release paper 310, the second release paper 320 and the third release paper 330 are arranged in sequence in the direction away from the hemostatic cotton 200.

[0030] The first easy-tear line 340 refers to a weak structural line formed in the pre-processing stage. Specifically, it can be achieved by laser cutting or die-cutting processes, and its depth can be controlled within the range of 30%-70% of the thickness of the release paper 300. In this way, it is easier to tear off the first release paper 310, the second release paper 320, or the third release paper 330 by tearing along the first easy-tear line 340.

[0031] Specifically, the base 100 is bonded to the hemostatic cotton 200 through the adhesive layer 110. A fourth release paper can also be provided at the corresponding position of the base 100 and the hemostatic cotton 200. A first easy-tear line 340 is also constructed between the fourth release paper and the third release paper 330 on both sides. By tearing along the first easy-tear line 340, the fourth release paper can be torn off, exposing the hemostatic cotton 200.

[0032] More specifically, the size of the hemostatic cotton 200 is smaller than the size of the adhesive layer 110, so that a portion of the adhesive layer 110 is bonded to the hemostatic cotton 200, while another portion of the adhesive layer 110 is bonded to the fourth release paper. Of course, in some other embodiments, the fourth release paper may not be provided, and the hemostatic cotton 200 may be prevented from becoming contaminated when not in use by placing the hemostatic patch in a storage box.

[0033] The substrate 100 is bonded to the first release paper 310, the second release paper 320 and the third release paper 330 through the adhesive layer 110; specifically, the adhesive layer 110 is the same size as the release paper 300.

[0034] In clinical use, depending on the type of puncture and the patient's coagulation function, the release paper 300 can be peeled off or retained to make the exposed base 100 of the release paper 300 different in length. Different lengths of base 100 generate different pressures, so that when the hemostatic cotton 200 is closely attached to the wounds caused by different types of puncture sites, the base 100 can generate different pressures on the hemostatic cotton 200.

[0035] When peeling off the two first release papers 310, the adhesive layer 110 corresponding to the first release papers 310 is bonded to the skin, and the pressure generated is defined as the first stage pressure; when peeling off the two first release papers 310 and the two second release papers 320, the adhesive layer 110 corresponding to the first release papers 310 and the second release papers 320 is bonded to the skin, and the pressure generated is defined as the second stage pressure; when peeling off the two first release papers 310, the two second release papers 320 and the two third release papers 330, the adhesive layer 110 corresponding to the first release papers 310, the second release papers 320 and the third release papers 330 is bonded to the skin, and the pressure generated is defined as the third stage pressure.

[0036] When performing arterial puncture, the hemostatic cotton 200 needs to apply high pressure to the wound. At this time, the first release paper 310, the second release paper 320 and the third release paper 330 are peeled off to apply a third level of pressure to the wound to effectively stop the bleeding.

[0037] During intravenous puncture, appropriate pressure needs to be applied to the wound with hemostatic cotton 200. At this time, the first release paper 310 is peeled off, and the second release paper 320 or the third release paper 330 is selectively retained. The first or second stage of pressure is applied to the wound to avoid excessive pressure on the wound.

[0038] The following explanation uses specific application scenarios as examples: For routine intravenous puncture, after peeling off the first release paper 310, the second release paper 320 and the third release paper 330 are retained. The adhesive layer 110 corresponding to the second release paper 320 is attached to the skin so that the hemostatic cotton 200 applies low pressure (first stage pressure) to the wound for 1-2 minutes, which can quickly stop bleeding and avoid excessive compression of superficial blood vessels.

[0039] For indwelling needle puncture, after peeling off the first release paper 310 and the second release paper 320, the third release paper 330 is retained. The adhesive layer 110 corresponding to the first release paper 310 and the second release paper 320 is used to stick to the skin so that the hemostatic cotton 200 applies moderate pressure (second stage pressure) to the wound for 1 to 2 minutes.

[0040] For arterial puncture, the first release paper 310, the second release paper 320, and the third release paper 330 are completely peeled off, and the corresponding adhesive layers 110 of the first release paper 310, the second release paper 320, and the third release paper 330 are adhered to the skin so that the hemostatic cotton 200 applies higher pressure (third-stage pressure) at the wound site to meet the requirements of arterial puncture hemostasis.

[0041] It should be noted that the hemostatic patch in the relevant technology uses an integral release paper 300 structure, and all the release paper 300 must be removed at once when peeling it off, which cannot adjust to the pressure requirements of the wound.

[0042] This application creates a gradient tension in the hemostatic patch by peeling off or retaining the first release paper 310, the second release paper 320, and the third release paper 330, thereby achieving precise control of the pressure applied to the wound and solving the problems of uncontrollable hemostatic pressure and easy displacement at the wound site.

[0043] In different clinical scenarios, peeling off all three release papers (310, 320, and 330) is suitable for rapid wound closure after arterial puncture; peeling off only the first release paper (310) and the second release paper (320) is suitable for indwelling needle puncture, ensuring better comfort while achieving effective hemostasis; peeling off only the first release paper (310) is suitable for routine infusion puncture, which can achieve rapid hemostasis while avoiding excessive compression of superficial blood vessels. Tear along the first easy-tear line 340, making it easier to peel off the first release paper 310, the second release paper 320, or the third release paper 330, thus improving operational efficiency. At the same time, the presence of the first easy-tear line 340 also makes the peeling path clearer, reducing the tearing damage of the release paper caused by improper force and improving the success rate of the operation.

[0044] It should be noted that in some other related technologies, the first release paper 310, the second release paper 320, or the third release paper 330 are designed to be spaced apart from each other. This spaced area occupies extra length, making the hemostatic patch too long. The end of the hemostatic patch is raised and is easily displaced by external forces (such as limb movement or clothing friction), which in turn causes the hemostatic cotton of the hemostatic patch to be misaligned with the wound.

[0045] This application arranges the first release paper 310, the second release paper 320, and the third release paper 330 continuously without gaps, and divides the area through two first tear lines 340, thereby reducing the size of the bandage and decreasing the risk of the end of the bandage tilting and shifting under external force, thus ensuring that the hemostatic cotton 200 always accurately covers the wound and improving the reliability and safety of hemostasis. Figure 4 As shown, in some embodiments, the release paper 300 is further provided with an auxiliary tear-off slit 350, which can be a pre-cut slit. The auxiliary tear-off slit 350 extends from the edge of the release paper 300 toward the first easy-tear line 340 and is connected to the first easy-tear line 340.

[0046] This embodiment establishes a clear peeling starting point by extending from the edge of the release paper 300 to the first easy-tear line 340. This allows medical personnel to quickly locate the tearing starting point and perform precise peeling from the auxiliary tear cut 350 along the first easy-tear line 340. Specifically, the depth of the auxiliary tear cut 350 is controlled at 20%-30% of the thickness of the release paper 300, which reduces initial peeling resistance while maintaining the connection strength of the non-peeled area, preventing accidental tearing of the non-peeled area during operation.

[0047] In actual implementation, the length of the hemostatic cotton 200 and the first release paper 310 in the first direction is twice the length of the second release paper 320 and the third release paper 330 in the first direction, and the lengths of the hemostatic cotton 200, the first release paper 310, the second release paper 320 and the third release paper 330 in the second direction are equal.

[0048] The lengths of the hemostatic cotton 200, the first release paper 310, the second release paper 320, and the third release paper 330 in the first direction are 2cm, 2cm, 1cm, and 1cm, respectively; the lengths of the hemostatic cotton 200, the first release paper 310, the second release paper 320, and the third release paper 330 in the second direction are all 2cm; the thickness of the hemostatic cotton 200 is 0.5cm. It should be noted that the first direction can be along the length of the hemostatic patch, and the second direction can be along the width of the hemostatic patch.

[0049] In some embodiments, the positions on the substrate 100 corresponding to the substrate 100 are defined as a first pressure portion, a second pressure portion, and a third pressure portion; the first pressure portion corresponds to the first release paper 310; the second pressure portion corresponds to the second release paper 320; and the third pressure portion corresponds to the third release paper 330.

[0050] The elastic coefficients of the first pressure section, the second pressure section, and the third pressure section increase sequentially; or the thicknesses of the first pressure section, the second pressure section, and the third pressure section increase sequentially.

[0051] The gradient design (increasing elasticity / thickness) of the first pressure section, the second pressure section, and the third pressure section creates a pressure difference. For example, the elastic modulus of the first pressure section (near the hemostatic cotton) is 0.5-1MPa; the elastic modulus of the second pressure section is 1.2-1.8MPa; and the elastic modulus of the third pressure section is 2.0-2.5MPa.

[0052] This gradient design (i.e., progressively increasing elastic modulus or thickness) enables graded pressure control at the wound site. As the first release paper 310, second release paper 320, and third release paper 330 are peeled off layer by layer, different pressure sections act successively on the skin, increasing the pressure of the hemostatic cotton 200 on the puncture site. Specifically, the low-elasticity / thin first pressure section flexibly conforms to the wound area, avoiding excessive initial pressure that could cause tissue damage. With the participation of the higher-elasticity / thicker pressure section, the pressure in the peripheral area moderately increases, achieving a continuous, balanced, and stable pressure effect from the center to the periphery, which helps suppress bleeding and prevent exudate leakage. Furthermore, this progressively increasing elasticity / thickness structure effectively disperses external impact, reduces displacement of the hemostatic cotton due to significant deformation of moving parts, improves dressing comfort and hemostatic reliability, and has good adaptability to different hemostatic strength requirements.

[0053] In practice, the first release paper 310, the second release paper 320, and the third release paper 330 are all different colors. This helps medical staff or patients quickly distinguish between the first release paper 310, the second release paper 320, and the third release paper 330 during actual operation, clearly define the removal order, avoid misoperation, and improve application efficiency and accuracy. Figure 5 and Figure 6 As shown, in some embodiments, there are multiple substrates 100, and a second tear line 120 is provided between every two adjacent substrates 100, and every two adjacent substrates 100 are connected by the second tear line 120.

[0054] Specifically, the base 100 corresponds to the position of the hemostatic cotton 200. The bandage has a folded state and an unfolded state. When the bandage is in the folded state (see...), Figure 7 Multiple bases 100 are folded along the second tear line 120, and the hemostatic cotton 200 of two adjacent bases 100 are adhered to each other; when the hemostatic patch is in the unfolded state (see... Figure 5 and Figure 6 Multiple bases 100 are unfolded along the second tear line 120, and the hemostatic cotton 200 of adjacent bases 100 are separated from each other. This design protects the hemostatic cotton 200 from contamination, while also reducing its volume in the folded state for easy folding.

[0055] Specifically, a notch 130 is provided between every two adjacent bases 100. The notch 130 extends from the edge of the bandage toward the second tear line 120 and connects with the second tear line 120. Medical personnel can peel off the target base 100 by tearing it off along the second tear line 120 through the notch 130.

[0056] In summary, this application has a wide range of applicable scenarios in clinical practice, including but not limited to routine intravenous puncture, indwelling needle puncture, and arterial puncture. Its operation is simple, and nursing staff can master its use after simple training, making it easy to promote and popularize in medical institutions.

[0057] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0058] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0059] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0060] In the description of this application, "multiple" means two or more.

[0061] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0062] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A hemostatic patch, characterized in that, include: Base (100), hemostatic cotton (200), and release paper (300); An adhesive layer (110) is provided on the substrate (100). The hemostatic cotton (200) is disposed at the center of the substrate (100). Release paper (300) is disposed on both sides of the hemostatic cotton (200). The release paper (300) includes a first release paper (310), a second release paper (320), and a third release paper (330). The first release paper (310), the second release paper (320), and the third release paper (330) are arranged sequentially away from the hemostatic cotton (200). The hemostatic cotton (200), the first release paper (310), the second release paper (320) and the third release paper (330) are respectively bonded to the substrate (100) through the adhesive layer (110). The release paper (300) is provided with a first tear line (340), which divides the release paper (300) to form the first release paper (310), the second release paper (320) and the third release paper (330).

2. The hemostatic patch according to claim 1, characterized in that, The base (100) is defined as a first pressure part, a second pressure part, and a third pressure part at positions on the base (100), respectively, with the elastic coefficients of the first pressure part, the second pressure part, and the third pressure part increasing sequentially; or the thickness of the first pressure part, the second pressure part, and the third pressure part increasing sequentially.

3. The hemostatic patch according to claim 2, characterized in that, The release paper (300) is also provided with an auxiliary tear cut (350), which extends from the edge of the release paper (300) toward the first easy tear line (340) and is connected to the first easy tear line (340).

4. The hemostatic patch according to claim 1, characterized in that, The first release paper (310), the second release paper (320), and the third release paper (330) are all different colors.

5. The hemostatic patch according to claim 2, wherein the length of the hemostatic cotton (200) and the first release paper (310) in the first direction is twice the length of the second release paper (320) and the third release paper (330) in the first direction, and the lengths of the hemostatic cotton (200), the first release paper (310), the second release paper (320) and the third release paper (330) in the second direction are equal.

6. The hemostatic patch according to claim 5, characterized in that, The lengths of the hemostatic cotton (200), the first release paper (310), the second release paper (320), and the third release paper (330) in the first direction are 2cm, 2cm, 1cm, and 1cm, respectively; the lengths of the hemostatic cotton (200), the first release paper (310), the second release paper (320), and the third release paper (330) in the second direction are all 2cm; and the thickness of the hemostatic cotton (200) is 0.5cm.

7. The hemostatic patch according to claim 1, characterized in that, The substrate (100) is a non-woven fabric, and the adhesive layer (110) is a hot melt adhesive.

8. The hemostatic patch according to any one of claims 1-7, characterized in that, There are multiple substrates (100), and a second tear line (120) is provided between each two adjacent substrates (100), and each two adjacent substrates (100) are connected by the second tear line (120).

9. The hemostatic patch according to claim 8, characterized in that, The hemostatic cotton (200) is positioned corresponding to each of the bases (100); The hemostatic patch has a folded state and an unfolded state. When the hemostatic patch is in the folded state, the hemostatic cotton (200) of two adjacent bases (100) are attached to each other; when the hemostatic patch is in the unfolded state, the hemostatic cotton (200) of two adjacent bases (100) are separated from each other.

10. The hemostatic patch according to claim 8, characterized in that, A notch (130) is provided between each two adjacent bases (100), the notch (130) extending from the edge of the bandage toward the second tear line (120) and connected to the second tear line (120).

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