Medical adhesive tape
By designing a medical tape including a silicone gel layer, an adhesive layer and release paper, the problem that existing medical tapes may tear the wounds when replaced is solved, achieving safer and more effective wound fixation and protection.
Patent Information
- Application Number
- CN202421054942.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-05-14
AI Technical Summary
Existing medical tapes may tear the wound when replaced, and the more sticky medical pressure-sensitive adhesives directly contact the wound, resulting in secondary wounds.
A medical tape is designed, including a first substrate layer, a silicone gel layer, an adhesive layer and a release paper. The silicone gel layer is in contact with the wound, and the adhesive layer is arranged around the silicone gel layer to avoid direct coverage of the wound and prevent external contamination through release paper.
It effectively avoids secondary tearing of the wound by medical tape during replacement, and maintains firmness, prevents the tape from falling out of the skin, and reduces direct contact and contamination of the wound.
Smart Images
Figure CN222917707U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of medical supplies, in particular to a medical tape. Background Art
[0002] Medical tapes are generally applied to the skin, mainly used for fixing wounds or as dressings; currently, the common medical tapes on the market are mainly divided into two categories: traditional pressure-sensitive adhesive tapes and silicone gel tapes.
[0003] However, for the existing medical tapes for fixing wounds, in order to ensure that the tape can adhere well to the skin surface without falling off, a medical pressure-sensitive adhesive with stronger viscosity is generally selected. The medical pressure-sensitive adhesive will directly contact the wound area, and the wound may be torn when the medical tape is replaced. Utility Model Content
[0004] This application provides a medical tape that can avoid the direct contact of the medical pressure-sensitive adhesive with the wound, avoid secondary tearing of the wound when replacing the medical tape, and at the same time can firmly adhere to the skin around the wound.
[0005] To solve the above technical problems, a medical tape proposed in this application includes a first base layer with a first side. A silicone gel layer is provided in the middle of the first side. A paste layer is provided on the first side, and the paste layer is arranged around the silicone gel layer. A release paper covers the silicone gel layer and the paste layer.
[0006] Specifically, the top surfaces of the silicone gel layer and the paste layer facing the release paper are in the same plane.
[0007] Specifically, the paste layer includes a first sub-paste layer and a second sub-paste layer arranged at intervals, and the silicone gel layer is located between the first sub-paste layer and the second sub-paste layer. The first sub-paste layer, the second sub-paste layer and the silicone gel layer extend in the same direction and are arranged side by side.
[0008] Specifically, the paste layer is arranged around the edge of the silicone gel layer, and the paste layer is in a hollow shape.
[0009] Specifically, it further includes a second base layer and an adhesive layer. The first base layer further includes a second side opposite to the first side, the adhesive layer is provided on the second side, and the second base layer is provided on the adhesive layer.
[0010] Specifically, both the adhesive layer and the paste layer are medical pressure-sensitive adhesive layers.
[0011] Specifically, it further includes a fiber reinforcement layer, and the fiber reinforcement layer is provided between the second base layer and the adhesive layer.
[0012] Specifically, the fiber reinforcement layer is formed by interweaving a plurality of fiber bundles, and the diameter range of each fiber bundle is 0.15 mm - 0.40 mm.
[0013] Specifically, the fiber reinforcement layer includes a plurality of fiber bundles, the fiber bundles are uniformly arranged on the top surface of the second substrate layer facing the adhesive layer, and the distance range between two adjacent fiber bundles is 0.5 mm - 1.5 mm.
[0014] Specifically, ventilation holes are uniformly distributed on the first substrate layer.
[0015] The beneficial effects of the present application are as follows: Compared with the existing medical tapes, the medical tape proposed in the present application includes a first substrate layer, a silicone gel layer, an adhesive layer, and a release paper. Among them, the first substrate layer includes a first side, and the first side is the end facing the wound. The silicone gel layer is arranged in the middle part of the first side for contacting the wound of the patient. The adhesive layer is arranged on the first side and adheres to the skin near the wound of the patient, and the adhesive layer is arranged around the silicone gel layer, further strengthening the stability of the fixation between the silicone gel layer and the wound, preventing the medical tape from detaching from the skin and ensuring that the silicone gel layer can be well attached to the wound. The release paper covers the silicone gel layer and the adhesive layer, so that when the medical tape is not in use, it can be not in contact with the external environment, avoiding the contamination of the wound by external dust or impurities. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where:
[0017] Figure 1 is a schematic cross-sectional structure diagram of an embodiment of the medical tape provided by the present application;
[0018] Figure 2 is a schematic structure diagram of an embodiment of the medical tape provided by the present application;
[0019] Figure 3 is a schematic structure diagram of another embodiment of the medical tape provided by the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.
[0021] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.
[0022] One aspect of the present application provides a medical tape. Please refer to Figures 1 to 3 , Figure 1 which is a schematic cross-sectional structure diagram of an embodiment of the medical tape provided by the present application. In some embodiments, the medical tape includes a first substrate layer 1, a silicone gel layer 2, an adhesive layer 3, and a release paper 4. Among them, the first substrate layer 1 includes a first side surface 11, and the first side surface 11 is the end facing the wound. The silicone gel layer 2 is disposed at the middle part of the first side surface 11 and is used to contact the patient's wound. The adhesive layer 3 is disposed on the first side surface 11 and adheres to the skin near the patient's wound, and the adhesive layer 3 is disposed around the silicone gel layer 2, further strengthening the stability of the fixation between the silicone gel layer 2 and the wound, preventing the medical tape from detaching from the skin and ensuring that the silicone gel layer 2 cannot be well attached to the wound. The release paper 4 covers the silicone gel layer 2 and the adhesive layer 3, so that when the medical tape is not in use, it can be not in contact with the external environment, avoiding the contamination of the wound by external dust or impurities.
[0023] It can be understood that in order to ensure that the entire medical tape still has a certain elastic space when fixing the wound, in some embodiments, the first substrate layer may be a non-woven fabric layer, and the non-woven fabric layer has a certain ductility. When the medical tape is adhered to the wound, when the skin near the wound bends or moves, the non-woven fabric layer is stretched to prevent the medical tape from becoming too tight and detaching from the skin, ensuring the firmness of the medical tape when it is attached.
[0024] Furthermore, referring to Figure 2 and Figure 3, in order to ensure the adhesion of the medical tape to the skin, in some embodiments, the top surfaces of the silicone gel layer 2 and the adhesive layer 3 facing the release paper 4 are in the same plane. That is to say, the thickness dimensions of the adhesive layer 3 and the silicone gel layer 2 fixed on the first substrate layer 1 are the same, ensuring that when the medical tape is used to fix a wound, when the silicone gel layer 2 adheres to the wound, the adhesive layer 3 can also adhere and fix to the skin near the wound, further ensuring the adhesion effect of the medical tape to the skin.
[0025] When the medical tape is used to fix a wound, in order to prevent the adhesive layer from directly covering the wound and causing tearing of the wound when replacing the medical tape, in some embodiments, the adhesive layer 3 includes a first sub-adhesive layer 31 and a second sub-adhesive layer 32 arranged at intervals. The silicone gel layer 2 is located between the first sub-adhesive layer 31 and the second sub-adhesive layer 32. The silicone gel layer 2 adheres to the wound, and the areas where the first sub-adhesive layer 31 and the second sub-adhesive layer 32 adhere to the skin are located at both ends of the wound, which can effectively avoid the contact between the wound and the adhesive layer 3 and prevent the wound from being torn when replacing the medical tape. The first sub-adhesive layer 31, the second sub-adhesive layer 32 and the silicone gel layer 2 extend in the same direction and are arranged side by side, and can be cut and used according to actual needs, reducing the manufacturing difficulty of the medical tape and reducing the labor and material costs.
[0026] It can be understood that when the medical tape has a large size and can completely cover the wound, in some embodiments, please refer to Figure 2 and Figure 3 , the adhesive layer 3 is arranged around the edge of the silicone gel layer 2, and the adhesive layer 3 is hollow. When ensuring that the medical tape covers the wound, the silicone gel layer 2 can completely cover the wound, and the annular adhesive layer 3 is directly pasted on the skin around the wound, further enhancing the tightness of the medical tape to the skin, thereby preventing the medical tape from detaching from the skin and the wound due to the bending or movement of the skin, which affects the healing of the wound.
[0027] In some embodiments, the medical tape further includes a second substrate layer 5 and an adhesive layer 6. The first substrate layer 1 further includes a second side surface 12 opposite to the first side surface 11. The adhesive layer 6 is arranged on the second side surface 12. On the one hand, the second substrate layer 5 is arranged and fixed on the adhesive layer 6, and on the other hand, it prevents the adhesive layer 6 from contacting the silicone gel layer 2 and retains the stickiness on the silicone gel layer 2, which affects the healing of the wound.
[0028] It can be understood that in order to ensure the waterproof performance of the medical tape, the second substrate layer 5 can be a PU (polyurethane) layer. The PU layer also has good elasticity, further ensuring the elasticity and ductility of the medical tape, so that the medical tape can always adhere to the wound and the skin during use.
[0029] Furthermore, in order to ensure the stability of the adhesion between the various structures of the medical tape, in some embodiments, both the adhesive layer 6 and the sticking layer 3 are medical pressure-sensitive adhesive layers, which improves the firmness of the adhesion between the first substrate layer 1 and the second substrate layer 5, as well as between the first substrate layer 1 and the skin.
[0030] In some other embodiments, when the second substrate layer 5 is a PU layer, the adhesive layer 6 can be a PU adhesive, which enhances the adhesion performance of the second substrate layer 5 and further ensures the quality of the medical tape.
[0031] In order to ensure the strength and toughness of the medical tape, in some embodiments, the medical tape further includes a fiber reinforcing layer 7. The fiber reinforcing layer 7 is disposed between the second substrate layer 5 and the adhesive layer 6 and is used to increase the tensile toughness of the entire medical tape, avoiding breakage of the medical tape due to excessive stretching when the medical tape needs to be stretched and fixed, which affects the usability of the medical tape.
[0032] It can be understood that, in some embodiments, referring to Figure 2 , the fiber reinforcing layer 7 is formed by interweaving a plurality of fiber bundles, enhancing the stability of the connection between the fiber bundles, realizing the increase of its toughness in both the transverse and longitudinal directions of the medical tape. The diameter range of each fiber bundle is 0.15 mm - 0.40 mm, which can be selected according to the actual size and usage requirements of the medical tape. Specifically, the diameter of the fiber bundle can be 0.15 mm, 0.25 mm, 0.35 mm or 0.40 mm, etc., so that the fiber bundle can be distributed between the second substrate layer 5 and the adhesive layer 6 in a suitable arrangement manner, enhancing the firmness of the medical tape.
[0033] In some other embodiments, referring to Figure 3 , the fiber bundles are uniformly arranged along a certain fixed direction of the medical tape on the top surface of the second substrate layer 5 facing the adhesive layer 6, and the distance range between two adjacent fiber bundles is 0.5 mm - 1.5 mm, so that the fiber bundles can be uniformly distributed on the second substrate layer 5 as needed, thereby ensuring the toughness and fixing firmness of the medical tape.
[0034] In order to ensure the air permeability of the medical tape itself, in some embodiments, ventilation holes (not shown in the figure) are uniformly distributed on the second substrate layer 5. When using the medical tape to fix a wound, it can reduce the detachment of the medical tape caused by sweating between the silicone gel layer 2 and the wound site, as well as between the sticking layer 3 and the surrounding part of the wound, and further avoid the stability of the medical tape when fixing the wound.
[0035] It is understandable that when using a medical tape, in order to facilitate the access to the medical tape, the medical tape further includes a plurality of truncated notches (not shown in the figure) that are equally spaced, parallel, and penetrate through the first base layer 1 and the second base layer 5. The setting of the truncated notches enables the medical tape to be torn off by the user more conveniently and quickly when fixing a wound with the medical tape.
[0036] Furthermore, in order to avoid the problem of bacterial infection that may occur when the medical tape contacts the wound, during the production and manufacturing of the medical tape, an ethylene oxide sterilization operation is performed, making the medical tape a sterile product, thereby avoiding possible infection problems.
[0037] When using this medical tape, it is necessary to first clean and disinfect the wound and the surrounding skin with alcohol or normal saline. After the skin is dry, take out the medical tape, hold the medical tape at a 45° angle to the wound, and peel off the release paper 4 at the moment of sticking to prevent the medical tape from sticking to itself. When fixing the wound, first stick the first medical tape in the middle of the wound, align the silicone gel layer 2 with the wound, and stick the first sub-sticking layer 31 of the medical tape on the skin on one side of the wound without tension to ensure firm adhesion. Try to closely fit the skin on the other side with the skin on this side by hand, and then stick the second sub-sticking layer 32 of the medical tape to the skin on the other side to complete the fixation of this wound. Then the remaining part of the wound can be closed in the same way. This medical tape is a disposable product. The wound can be fixed by oneself with this medical tape and replaced within 2 - 7 days. On the one hand, it avoids the loss of stickiness of the medical tape and the exposure of the wound to the outside; on the other hand, it avoids the destruction of the sterility of the medical tape, and keeping it for too long will cause wound infection.
[0038] In the description of the present application, the descriptions referring to terms such as "some embodiments", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, mechanisms, materials, or characteristics described in connection with the embodiment or example are included in at least some embodiments or examples of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, mechanisms, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0039] The above is only the implementation mode of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.
Claims
1. A medical tape, characterized in that: include: A first substrate layer, comprising a first side surface and a second side surface opposite to the first side surface; a silicone gel layer, wherein the silicone gel layer is disposed in the middle portion of the first side surface; an adhesive layer, the adhesive layer being disposed on the first side surface and surrounding the silicone gel layer; Release paper, the release paper covers the silicone gel layer and the adhesive layer; an adhesive layer, the adhesive layer being disposed on the second side surface; A second substrate layer is disposed on the adhesive layer.
2. The medical tape according to claim 1, characterized in that: The silicone gel layer and the adhesive layer are located on the same plane with respect to the top surface of the release paper.
3. The medical tape according to claim 1 or 2, characterized in that: The adhesive layer comprises a first sub-adhesive layer and a second sub-adhesive layer which are spaced apart from each other, and the silicone gel layer is located between the first sub-adhesive layer and the second sub-adhesive layer; The first sub-adhesive layer, the second sub-adhesive layer and the silicone gel layer extend in the same direction and are arranged side by side.
4. The medical tape according to claim 1 or 2, characterized in that: The adhesive layer is arranged around the edge of the silicone gel layer, and the adhesive layer is hollow.
5. The medical tape according to claim 1, characterized in that: The adhesive layer and the bonding layer are both medical pressure-sensitive adhesive layers.
6. The medical tape according to claim 1, characterized in that: The invention also includes a fiber reinforcement layer, wherein the fiber reinforcement layer is arranged between the second substrate layer and the adhesive layer.
7. The medical tape according to claim 6, characterized in that: The fiber reinforcement layer is formed by interweaving a plurality of fiber bundles, and the diameter of each fiber bundle ranges from 0.15 mm to 0.40 mm.
8. The medical tape according to claim 6, characterized in that: The fiber reinforcement layer includes a plurality of fiber bundles, and the fiber bundles are evenly arranged on the top surface of the second base material layer facing the adhesive layer, and the distance between two adjacent fiber bundles ranges from 0.5 mm to 1.5 mm.
9. The medical tape according to claim 1, characterized in that: The second substrate layer has air holes evenly distributed thereon.