Sticking type internal fistula hemostasis antibacterial cotton column

Abstract

The utility model discloses a sticking type internal fistula hemostasis antibacterial cotton column which comprises a sticking belt, a first sticking layer, a second sticking layer and a hemostasis piece, the sticking belt is provided with a first face and a second face which are back to back, and the first face comprises a first sticking area, a groove and a second sticking area which are sequentially arranged in the first direction; the first sticking layer and the second sticking layer can be stuck to the skin surface, the first sticking layer is arranged in the first sticking area, and the second sticking layer is arranged in the second sticking area; the hemostasis piece can stop bleeding and comprises a first part located in the groove and a second part located outside the groove, the second part is connected to the first part and can deform, and the second part is provided with a hemostasis face away from the second face. The hemostatic surface is far away from the second surface compared with the first adhesive layer and the second adhesive layer. The adhesive type internal fistula hemostasis antibacterial cotton column can improve the treatment effect of a patient.

Description

Technical Field

[0001] This utility model relates to medical devices, and in particular to adhesive-type arteriovenous fistula hemostatic and antibacterial cotton columns. Background Technology

[0002] After hemodialysis, ordinary hemostatic cotton balls or gauze are needed to apply pressure to stop the bleeding. When the patient is loosening the tourniquet of the arteriovenous fistula, the hemostatic material is easily displaced due to single-handed operation, causing bleeding at the puncture site or subcutaneous hematoma, resulting in secondary trauma, affecting the patient's treatment effect and subsequent recovery. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column, which can improve the treatment effect for patients.

[0004] According to an embodiment of the present invention, an adhesive arteriovenous fistula hemostatic and antibacterial cotton column includes:

[0005] An adhesive tape has a first side and a second side facing away from each other. The first side includes a first adhesive area, a groove, and a second adhesive area arranged sequentially along a first direction.

[0006] Both the first adhesive layer and the second adhesive layer can be adhered to the skin surface. The first adhesive layer is located in the first adhesive area, and the second adhesive layer is located in the second adhesive area.

[0007] A hemostatic element capable of stopping bleeding, the hemostatic element comprising a first part located within the groove and a second part located outside the groove, the second part being connected to the first part and capable of deformation, the second part having a hemostatic surface away from the second surface, the hemostatic surface being away from the second surface relative to the first adhesive layer and the second adhesive layer.

[0008] The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to the embodiments of this utility model has at least the following beneficial effects: the hemostatic element is adhered to the skin near the wound site by the adhesive tape, the hemostatic element is fixed by the adhesive tape, the position of the hemostatic element is not easily changed, and the patient's treatment effect is better; at the same time, the hemostatic surface of the hemostatic element extends beyond the first adhesive layer and the second adhesive layer, when the adhesive tape is applied, the hemostatic element will be compressed, thereby achieving pressure hemostasis on the wound, making the hemostatic effect better, and thus improving the patient's treatment effect.

[0009] According to some embodiments of the present invention, it further includes: a first release layer, at least a portion of which is located in the first adhesive area and disposed on the side of the first adhesive layer away from the first surface, the first release layer being configured to be separable from the first adhesive layer;

[0010] And / or,

[0011] The adhesive arteriovenous fistula hemostatic and antibacterial cotton column also includes a second release layer, at least a portion of which is located in the second adhesive area and disposed on the side of the second adhesive layer away from the first surface. The first release layer is configured to be separable from the second adhesive layer.

[0012] According to some embodiments of the present invention, a portion of the first release layer is located at the opening of the groove and covers the opening of the groove;

[0013] Alternatively, a portion of the second release layer is located at the opening of the groove and covers the opening of the groove;

[0014] Alternatively, a portion of the first release layer is located at the opening of the groove, and a portion of the second release layer is located at the opening of the groove, with the first release layer and the second release layer together covering the opening of the groove.

[0015] According to some embodiments of the present invention, it further includes: a protective layer disposed on the hemostatic surface.

[0016] According to some embodiments of the present invention, it further includes: a dressing layer, the dressing layer being disposed on the hemostatic surface.

[0017] According to some embodiments of the present invention, the hemostatic surface includes a concave arc surface.

[0018] According to some embodiments of the present invention, the hemostatic component includes a first chamfered portion and a main body portion arranged sequentially along a first direction. The first chamfered portion is connected to the main body portion. The angle between the first chamfered portion and the first surface facing the side where the second surface is located is α. The adhesive fistula hemostatic antibacterial cotton column satisfies: 150°≤α≤180°.

[0019] According to some embodiments of the present invention, the hemostatic element further includes a minor arc surface connected to the hemostatic surface, and the minor arc surface is connected to the groove.

[0020] According to some embodiments of the present invention, the second surface has a first mark, which is located within the projection area of ​​the first adhesive area on the second surface. The first mark is used to mark the failure location when the first adhesive layer separates from the skin.

[0021] According to some embodiments of the present invention, the second surface also has a second mark, which is located within the projection area of ​​the first adhesive area on the second surface. The second mark is closer to the groove than the first mark, and the second mark is used to mark the preset adhesive position of the first adhesive layer and the skin.

[0022] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of the first embodiment of the adhesive arteriovenous fistula hemostatic and antibacterial cotton column according to an embodiment of the present invention.

[0025] Figure 2 This is a front view schematic diagram of the first embodiment of the adhesive arteriovenous fistula hemostatic and antibacterial cotton column according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the second embodiment of the adhesive arteriovenous fistula hemostasis and antibacterial cotton column according to one embodiment of the present invention;

[0027] Figure 4 This is a front view schematic diagram of a second embodiment of the adhesive arteriovenous fistula hemostatic and antibacterial cotton column according to one embodiment of the present invention;

[0028] Icon labels:

[0029] Adhesive tape 100; First side 110; First adhesive area 111; Groove 112; Second adhesive area 113; Second side 120; First mark 121; Second mark 122;

[0030] First adhesive layer 200;

[0031] Second adhesive layer 300;

[0032] Hemostatic component 400; First part 410; Second part 420; First chamfered part 430; Main body part 440; Second chamfered part 450;

[0033] First release layer 500;

[0034] Second release layer 600;

[0035] 700 protective layer;

[0036] Dressing layer 800. Detailed Implementation

[0037] The embodiments of this utility model 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 utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "several" refers to one or more, and "multiple" refers to two or more. The use of "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0040] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0041] Reference Figures 1 to 4 As shown in the figure, the adhesive arteriovenous fistula hemostatic and antibacterial cotton column of this utility model embodiment includes: adhesive tape 100, first adhesive layer 200, second adhesive layer 300 and hemostatic component 400.

[0042] The adhesive tape 100 has a first side 110 and a second side 120 facing away from each other. The first side 110 includes a first adhesive area 111, a groove 112, and a second adhesive area 113 arranged sequentially along a first direction. The adhesive tape 100 is strip-shaped and can be made of various materials, such as a skin-like material to improve comfort, or a waterproof material to improve waterproof performance. The first side 110 and the second side 120 of the adhesive tape 100 refer to the two sides with the largest area among all opposing sides, so as to facilitate processing on the surface of the adhesive tape 100 to make the adhesive tape 100 adhesive. The adhesive tape 100 is a flexible tape, and its shape is formed after it is processed into an adhesive fistula hemostatic and antibacterial cotton column, which then forms the groove 112, the first adhesive area 111, and the second adhesive area 113. The shape of the groove 112 will vary according to the specific shape of the hemostatic component 400, and the corresponding shapes of the first adhesive area 111 and the second adhesive area 113 are basically sheet-like.

[0043] Both the first adhesive layer 200 and the second adhesive layer 300 can be adhered to the skin surface. The first adhesive layer 200 is located in the first adhesive area 111, and the second adhesive layer 300 is located in the second adhesive area 113. In this embodiment, both the first adhesive layer 200 and the second adhesive layer 300 are adhesive layers, and these adhesive layers can adhere to the patient's skin. At the same time, they can also separate from the patient's skin under a certain external force. In order to avoid secondary damage to the patient's skin during the separation process of the adhesive layer from the patient's skin, the adhesiveness of the adhesive layer should not be set too high.

[0044] The hemostatic element 400 is capable of stopping bleeding. The hemostatic element 400 includes a first part 410 located within a groove 112 and a second part 420 located outside the groove 112. The second part 420 is connected to the first part 410 and is deformable. The second part 420 has a hemostatic surface away from the second surface 120, which is further away from the second surface 120 than the first adhesive layer 200 and the second adhesive layer 300. In this embodiment, the hemostatic element 400 is a cotton column with a certain degree of water absorption and is deformable to apply pressure. The hemostatic element 400 can be bonded to the groove 112 by another adhesive layer. Because this part of the bond does not directly contact the patient's skin and needs to maintain the stability of the bond, the adhesive strength of this adhesive layer is greater than the adhesive strength between the first adhesive layer 200 and the second adhesive layer 300. The hemostatic surface extends beyond the first adhesive layer 200 and the second adhesive layer 300 in a direction away from the second surface 120. When the first adhesive layer 200 is adhered to the patient's skin, the hemostatic element 400 will be compressed, so that the hemostatic surface is flush with the first adhesive layer 200 and the second adhesive layer 300.

[0045] It is understandable that by attaching the hemostatic element 400 to the skin near the patient's wound site using the adhesive tape 100, the hemostatic element 400 is fixed by the adhesive tape 100, and its position is not easily changed, resulting in better treatment outcomes for the patient. At the same time, the hemostatic surface of the hemostatic element 400 extends beyond the first adhesive layer 200 and the second adhesive layer 300. When the adhesive tape 100 is applied, the hemostatic element 400 will be compressed, thereby achieving pressure hemostasis on the wound, resulting in better hemostasis and thus improving the patient's treatment outcome.

[0046] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some specific embodiments of this utility model, the adhesive fistula hemostatic and antibacterial cotton column further includes: a first release layer 500, at least a portion of which is located in the first adhesive area 111 and disposed on the side of the first adhesive layer 200 away from the first surface 110, and the first release layer 500 is configured to be separable from the first adhesive layer 200.

[0047] It is understandable that by protecting the first adhesive layer 200 with the first release layer 500, the adhesion performance of the first adhesive layer 200 is not easily affected by dust or other impurities, thus improving the reliability of the first adhesive layer 200. During use, the first release layer 500 has a release surface with low-tack properties; in other words, the first release layer 500 and the first adhesive layer 200 are easier to separate.

[0048] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some specific embodiments of this utility model, the adhesive fistula hemostatic and antibacterial cotton column further includes a second release layer 600. At least a portion of the second release layer 600 is located in the second adhesive area 113 and is disposed on the side of the second adhesive layer 300 away from the first surface 110. The first release layer 500 is configured to be separable from the second adhesive layer 300.

[0049] It is understandable that the second release layer 600 protects the second adhesive layer 300, making the second adhesive layer 300 less susceptible to adhesion problems caused by dust and other impurities, thus improving the reliability of the second adhesive layer 300. During use, the second release layer 600 has a release surface with low-tack properties; in other words, the second release layer 600 and the second adhesive layer 300 are easier to separate.

[0050] In this embodiment, the adhesive fistula hemostatic and antibacterial cotton column includes a first release layer 500 and a second release layer 600, which respectively protect the first adhesive layer 200 and the second adhesive layer 300, thereby improving the protective effect.

[0051] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some specific embodiments of this utility model, a portion of the first release layer 500 is located at the opening of the groove 112 and covers the opening of the groove 112.

[0052] It is understandable that when a portion of the first release layer 500 is located at the opening of the groove 112, a portion of the first release layer 500 will cover the hemostatic surface, so that the first release layer 500 can protect both the first adhesive layer 200 and the hemostatic surface, thereby improving the protection effect and making the hemostatic surface of the hemostatic component 400 less susceptible to contamination by other substances, thus reducing the treatment risk.

[0053] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some specific embodiments of this utility model, a portion of the second release layer 600 is located at the opening of the groove 112 and covers the opening of the groove 112.

[0054] It is understandable that when a portion of the second release layer 600 is located at the opening of the groove 112, a portion of the second release layer 600 will cover the hemostatic surface, so that the second release layer 600 can protect both the second adhesive layer 300 and the hemostatic surface, thereby improving the protection effect and making the hemostatic surface of the hemostatic element 400 less likely to be contaminated by other substances, thus reducing the treatment risk.

[0055] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some specific embodiments of this utility model, a portion of the first release layer 500 is located at the opening of the groove 112, and a portion of the second release layer 600 is located at the opening of the groove 112. The first release layer 500 and the second release layer 600 together cover the opening of the groove 112.

[0056] It is understandable that when a portion of the first release layer 500 and a portion of the second release layer 600 are located at the opening of the groove 112, these portions will together cover the hemostatic surface. This allows the first release layer 500 to protect the first adhesive layer 200, and the second release layer 600 to protect the second adhesive layer 300. Furthermore, both the first and second release layers 500 and 600 can jointly protect the hemostatic surface, improving the protective effect and making the hemostatic surface of the hemostatic element 400 less susceptible to contamination by other substances, thus reducing the treatment risk. The portions of the first release layer 500 and the second release layer 600 at the opening of the groove 112 can overlap.

[0057] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some specific embodiments of this utility model, the adhesive arteriovenous fistula hemostasis and antibacterial cotton column further includes: a protective layer 700, which is disposed on the hemostasis surface.

[0058] It is understandable that the protective layer 700 can protect the hemostatic surface, making it less susceptible to contamination. The adhesive setting between the protective layer 700 and the hemostatic surface allows the protective layer 700 to effectively protect the hemostatic surface, reducing the risk of contamination.

[0059] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, in some specific embodiments of this utility model, the adhesive fistula hemostatic and antibacterial cotton column further includes: a dressing layer 800, which is disposed on the hemostatic surface.

[0060] In this embodiment, the dressing layer 800 is made of a waterproof and antibacterial material, and has waterproof and antibacterial functions. The dressing layer 800 is directly applied to the hemostatic surface to contact the patient's wound site and treat the wound. When the adhesive fistula hemostatic and antibacterial cotton column also includes a protective layer 700, the protective layer 700 is located on the side of the dressing layer 800 away from the hemostatic surface and is connected to the dressing layer 800 to protect the dressing layer 800 from contamination.

[0061] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some specific embodiments of this utility model, the hemostatic surface includes a concave arc surface. The concave arc surface better conforms to the curvature of the human skin surface, making the hemostatic surface fit the human skin more closely, resulting in better hemostatic effect. At the same time, the hemostatic element 400 is more easily subjected to uniform pressure, making the pressure distribution between the hemostatic element 400 and the wound site uniform, effectively preventing blood leakage from areas of lower pressure, and improving the treatment effect.

[0062] Reference Figure 3 and Figure 4 As shown, in some specific embodiments of this utility model, the hemostatic component 400 includes a first chamfered portion 430 and a main body portion 440 arranged sequentially along a first direction. The first chamfered portion 430 is connected to the main body portion 440. The angle between the first chamfered portion 430 and the first surface 110 facing the side where the second surface 120 is located is α. The adhesive fistula hemostatic antibacterial cotton column satisfies: 150°≤α≤180°.

[0063] It should be noted that the hemostatic element 400 is fixed to the wound site by the adhesive force of the first adhesive layer 200 and the second adhesive layer 300. When the hemostatic element 400 is compressed by the adhesive tape 100, a counterforce is applied to the adhesive tape 100. The adhesive force between the first adhesive layer 200 and the second adhesive layer 300 is affected by the adhesive tape 100, causing it to loosen and separate from the skin. This results in a decrease in the pressure on the hemostatic element 400, reducing its hemostatic effect on the wound site and affecting treatment. Specifically, while increased adhesion between the first adhesive layer 200 and the second adhesive layer 300 and the skin can maintain the pressure and hemostatic effect of the tourniquet, it also makes separation of the first adhesive layer 200 and the second adhesive layer 300 from the patient's skin more difficult, leading to more pain and potentially causing new skin problems.

[0064] Based on this, a first chamfered portion 430 is provided between the main body 440 and the first adhesive layer 200. The angle between the first chamfered portion 430 and the first adhesive layer 200 is larger. At this time, the component force on the first adhesive layer 200 along the direction perpendicular to the skin surface is smaller, making it less likely for the first adhesive layer 200 to separate directly from the skin. The first adhesive layer 200 can adhere more stably to the skin surface to maintain the pressure of the hemostatic element 400. At the same time, the first adhesive layer 200 can also maintain appropriate adhesion to facilitate separation from the patient's skin and improve the patient's user experience.

[0065] In this embodiment, the hemostatic component 400 further includes a second chamfered portion 450. The first chamfered portion 430, the main body portion 440 and the second chamfered portion 450 are arranged sequentially along the first direction. The second chamfered portion 450 is located between the main body portion 440 and the second adhesive layer 300 and has the same effect as the first chamfered portion 430, which will not be described in detail here.

[0066] Reference Figure 1 and Figure 2 As shown, in some specific embodiments of this utility model, the hemostatic component 400 further includes a inferior arc surface connected to the hemostatic surface, and the inferior arc surface is connected to the groove 112. In this embodiment, the two ends of the inferior arc surface are respectively connected to the first adhesive layer 200 and the second adhesive layer 300. Furthermore, because the central angle corresponding to the inferior arc surface is less than 180°, a larger angle can be maintained between the inferior arc surface and the first adhesive layer 200 and the second adhesive layer 300. This results in a smaller component force on the first adhesive layer 200 and the second adhesive layer 300 in the direction away from the patient's skin, making the connection between the adhesive tape 100 and the patient's skin more stable and the use more reliable.

[0067] Reference Figure 1 and Figure 3 As shown, in some specific embodiments of this utility model, the second surface 120 has a first mark 121. The first mark 121 is located within the projection area of ​​the first adhesive area 111 on the second surface 120. The first mark 121 is used to mark the failure position when the first adhesive layer 200 is separated from the skin.

[0068] It should be noted that when the first adhesive layer 200 and the second adhesive layer 300 separate from the human skin surface to a certain extent, the hemostatic component 400 will no longer be under pressure and will basically have no hemostatic effect.

[0069] Therefore, the first mark 121 can indicate the location of the hemostatic component 400 when it fails on the second surface 120. When medical personnel find that the first adhesive layer 200 has separated from the skin to the location of the first mark 121, the adhesive tape 100 can be considered to have failed and needs to be replaced, making it convenient for medical personnel to use. The first mark 121 can be set to various colors, such as red.

[0070] Reference Figure 1 and Figure 3 As shown, in some specific embodiments of this utility model, the second surface 120 also has a second mark 122. The second mark 122 is located within the projection area of ​​the first adhesive area 111 on the second surface 120. The second mark 122 is closer to the groove 112 than the first mark 121. The second mark 122 is used to mark the preset adhesive position of the first adhesive layer 200 and the skin.

[0071] It is understandable that the second identifier 122 indicates the preset adhesion position of the first adhesive layer 200 to the skin. When using it, medical personnel only need to ensure that the adhesion of the first adhesive layer 200 to the skin exceeds the second identifier 122 to meet the usage requirements of the first adhesive layer 200. At this point, the hemostatic component 400 can achieve the preset pressure hemostasis effect, resulting in better treatment outcomes. The second identifier 122 also makes the use of the adhesive tape 100 more convenient. The second identifier 122 can be set to various colors; generally, it is set to a different color than the first identifier 121, for example, the second identifier 122 could be green.

[0072] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column, characterized in that, include: An adhesive tape has a first side and a second side facing away from each other. The first side includes a first adhesive area, a groove, and a second adhesive area arranged sequentially along a first direction. Both the first adhesive layer and the second adhesive layer can be adhered to the skin surface. The first adhesive layer is located in the first adhesive area, and the second adhesive layer is located in the second adhesive area. A hemostatic element capable of stopping bleeding, the hemostatic element comprising a first part located within the groove and a second part located outside the groove, the second part being connected to the first part and capable of deformation, the second part having a hemostatic surface away from the second surface, the hemostatic surface being away from the second surface relative to the first adhesive layer and the second adhesive layer.

2. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 1, characterized in that, Also includes: A first release layer, at least a portion of which is located in the first adhesive area and disposed on the side of the first adhesive layer away from the first surface, the first release layer being configured to be separable from the first adhesive layer; And / or, The adhesive arteriovenous fistula hemostatic and antibacterial cotton column also includes a second release layer, at least a portion of which is located in the second adhesive area and disposed on the side of the second adhesive layer away from the first surface. The first release layer is configured to be separable from the second adhesive layer.

3. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 2, characterized in that: A portion of the first release layer is located at the opening of the groove and covers the opening of the groove; Alternatively, a portion of the second release layer is located at the opening of the groove and covers the opening of the groove; Alternatively, a portion of the first release layer is located at the opening of the groove, and a portion of the second release layer is located at the opening of the groove, with the first release layer and the second release layer together covering the opening of the groove.

4. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 1, characterized in that, Also includes: A protective layer is provided on the hemostatic surface.

5. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 1, characterized in that, Also includes: A dressing layer is disposed on the hemostatic surface.

6. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 1, characterized in that: The hemostatic surface includes a concave arc surface.

7. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 1, characterized in that: The hemostatic component includes a first chamfered portion and a main body portion arranged sequentially along a first direction. The first chamfered portion is connected to the main body portion. The angle between the first chamfered portion and the first surface facing the side where the second surface is located is α. The adhesive fistula hemostatic antibacterial cotton column satisfies: 150°≤α≤180°.

8. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 1, characterized in that: The hemostatic element also includes a minor arc surface connected to the hemostatic surface, and the minor arc surface is connected to the groove.

9. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 1, characterized in that: The second surface has a first mark, which is located within the projection area of ​​the first adhesive area onto the second surface. The first mark is used to mark the failure location when the first adhesive layer separates from the skin.

10. The adhesive-type arteriovenous fistula hemostatic and antibacterial cotton column according to claim 9, characterized in that: The second surface also has a second mark, which is located within the projection area of ​​the first adhesive area onto the second surface. The second mark is closer to the groove than the first mark. The second mark is used to mark the preset adhesive position of the first adhesive layer and the skin.

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