Antibacterial indwelling needle application

Abstract

The utility model discloses an antibacterial indwelling needle application, which belongs to the technical field of medical supplies and comprises a first antibacterial layer, a second antibacterial layer, a first adhesive layer, a second adhesive layer and a third adhesive layer. The second antibacterial layer covers the upper side of the first antibacterial layer; the upper side of the second antibacterial layer is covered with a film layer which is at least used for enhancing the tensile property of the application; the adhesion layer is arranged on the lower side of the first antibacterial layer, is configured to be in contact with the skin and is used for adhering the patch to the skin; the adhesion layer is partially arranged on the lower side of the first antibacterial layer and annularly arranged on the edge of the first antibacterial layer; the problems that in the prior art, a transparent film for fixing the remaining needle only plays roles in fixing the remaining needle and isolating external pathogenic bacteria, the antibacterial function is difficult to achieve, and even if the antibacterial function exists, the performance is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical supplies, in particular to an antibacterial indwelling needle dressing. Background Art

[0002] The statements herein only provide background art related to the utility model and do not necessarily constitute prior art.

[0003] An indwelling venous needle, also known as a venous cannula, has core components including a soft catheter that can be indwelled in a blood vessel and a stainless steel puncture guiding stylet. When in use, the catheter and the stylet are punctured into the blood vessel together. After the catheter has completely entered the blood vessel, the stylet is withdrawn, and only the soft catheter is left indwelled in the blood vessel for infusion therapy.

[0004] Since the indwelling time of the indwelling needle in a vein is generally long, bacteria are likely to breed at the puncture site of the catheter. However, in the prior art, only a sterile transparent dressing is often used and fixed with tape. This transparent dressing only serves to fix the indwelling needle and isolate external pathogenic bacteria, and it is difficult to achieve an antibacterial function.

[0005] Although some dressings also have antibacterial effects, they often use bactericidal substances such as alcohol to achieve the antibacterial function, which causes irritation to the puncture wound; although some dressings are provided with an antibacterial layer, there is an adhesive layer for adhesion between the indwelling needle and the antibacterial layer, which affects the antibacterial effect of the dressing; some dressings add antibacterial substances to the adhesive layer, which affects the bonding performance of the adhesive layer. Summary of the Utility Model

[0006] An object of an embodiment of the utility model is to provide an antibacterial indwelling needle dressing, which solves at least one of the above problems.

[0007] To achieve the above object, the embodiment of the utility model provides the following technical solutions:

[0008] An antibacterial indwelling needle dressing, comprising:

[0009] A first antibacterial layer and a second antibacterial layer, which are used to sterilize the covered area;

[0010] The second antibacterial layer covers the upper side of the first antibacterial layer;

[0011] A film layer covers the upper side of the second antibacterial layer, which is at least used to enhance the anti-stretching performance of the dressing;

[0012] An adhesive layer is arranged on the lower side of the first antibacterial layer and is configured to contact the skin and be used to bond the dressing to the skin;

[0013] The adhesive layer is partially arranged on the lower side of the first antibacterial layer and is annularly arranged at the edge of the first antibacterial layer.

[0014] In some embodiments, the first antibacterial layer contains silver nanoparticles or silver ions.

[0015] In some embodiments, the second antibacterial layer contains nano-titanium dioxide and also contains nano-copper particles or copper ions.

[0016] In some embodiments, the adhesive layer is a hydrocolloid layer, and the hydrocolloid layer has adhesiveness.

[0017] In some embodiments, a release layer is provided on the lower side of the adhesive layer or the upper side of the film layer.

[0018] In some embodiments, release layers are provided on both the lower side of the adhesive layer and the upper side of the film layer.

[0019] In some embodiments, the release layer at least partially covers the upper side of the film layer, and an information recording strip that can be pasted is provided on the film layer.

[0020] In some embodiments, the area of the release layer is less than or equal to the area of the dressing.

[0021] In some embodiments, a handle is provided on one side of the release layer, and the handle is integrally provided with the release layer.

[0022] In some embodiments, the film layer is a PU film.

[0023] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0024] 1. By arranging part of the adhesive layer on the lower side of the antibacterial layer, the position without the adhesive layer is used to accommodate and fix the indwelling needle, so that the antibacterial layer is in direct contact with the skin and the indwelling needle, and better antibacterial effects are achieved for the dressing of the present utility model.

[0025] 2. Through the first antibacterial layer containing silver, the antibacterial performance of the dressing is maintained in strong or weak light or in a dark environment; through the second antibacterial layer containing titanium dioxide and copper, the antibacterial performance of the dressing is improved when the light is good, and better antibacterial performance is achieved for the dressing of the present utility model.

[0026] 3. The dressing of the present utility model is adhered to the skin through the hydrocolloid layer, and the hydrocolloid layer also has good water absorption, can absorb the blood and water exuded from the acupuncture site, keep the site dry and the adhesion firm, and further improve the service life and antibacterial performance of the dressing. Description of the Drawings

[0027] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present utility model, and the schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0028] Figure 1 is a schematic structural view of an antibacterial indwelling needle dressing provided by one or more embodiments of the present utility model;

[0029] In the figure: 1. First release layer; 2. Adhesive layer; 3. First antibacterial layer; 4. Second antibacterial layer; 5. Membrane layer; 6. Second release layer; 7. Information recording strip.

[0030] The distances or sizes between each part are exaggerated for showing the positions of each part, and the schematic view is only for illustration. Detailed implementation manners

[0031] It should be noted that the following detailed description is exemplary and is intended to provide further illustration of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs.

[0032] As introduced in the background art, the transparent dressing for fixing indwelling needles in the prior art only plays the role of fixing indwelling needles and isolating external pathogenic bacteria, and it is difficult to achieve an antibacterial function. Even if there is an antibacterial function, there are also problems with poor performance. To solve the above technical problems, the present utility model proposes an antibacterial indwelling needle dressing.

[0033] As Figure 1 shown, one embodiment of the present utility model records an antibacterial indwelling needle dressing, which can be used to fix the soft catheter of the indwelling needle in the blood vessel, and at the same time can isolate external pathogenic bacteria, actively kill bacteria, prevent bacteria from contacting the indwelling needle and the puncture wound, and achieve an antibacterial function.

[0034] Specifically, the antibacterial indwelling needle dressing includes a first antibacterial layer 3 and a second antibacterial layer 4 arranged up and down, the second antibacterial layer 4 covers the upper side of the first antibacterial layer 3, and both antibacterial layers can play a role in sterilizing and antibacterial the covered skin; the membrane layer 5 covers the upper side of the second antibacterial layer 4, which can enhance the mechanical properties of the dressing, such as tensile resistance, to prevent the dressing from breaking. At the same time, the membrane layer 5 can also play a role in isolating moisture and external pollutants and pathogenic bacteria; the adhesive layer 2 is arranged around the lower side of the first antibacterial layer 3, and the adhesive layer 2 is in direct contact with the skin. The dressing is bonded to the skin through the adhesive layer 2. The adhesive layer 2 is not provided on the lower side of the part of the first antibacterial layer 3 that contacts the indwelling needle, so that the first antibacterial layer 3 without the adhesive layer 2 contacts the indwelling needle and the skin, and fixes the indwelling needle on the skin, so that the antibacterial layer is in direct contact with the skin and the indwelling needle, achieving a better antibacterial effect.

[0035] Optionally, the first antibacterial layer 3 contains silver nanoparticles or silver ions.

[0036] Optionally, the second antibacterial layer 4 is a mixture containing nano-titanium dioxide and nano-copper particles, or a mixture of nano-titanium dioxide and copper ions. The second antibacterial layer 4 and the first antibacterial layer 3 are successively and superposed on the film layer.

[0037] The presence of silver atoms or silver ions in the first antibacterial layer 3 enables the dressing to have antibacterial properties even in a weakly lit or dark environment, maintaining the antibacterial properties of the dressing; the titanium dioxide in the second antibacterial layer 4 can absorb ultraviolet light to achieve a bactericidal function, and the presence of copper atoms or copper ions can absorb visible light and transfer it to titanium dioxide, further enhancing the antibacterial properties of titanium dioxide. At the same time, using titanium dioxide as an antibacterial substance has good biocompatibility, and copper is an essential element for the human body and will not have an impact on the human body.

[0038] Optionally, the adhesive layer 2 is a hydrocolloid layer. The hydrocolloid layer has adhesiveness. Hydrocolloids are prior art and can include materials such as chitosan, chitosan derivatives, or alginates, etc., which have good biocompatibility and water absorbency.

[0039] Optionally, a release layer is provided on the lower side of the adhesive layer 2 or the upper side of the film layer 5. Preferably, release layers are provided on both the lower side of the adhesive layer 2 and the upper side of the film layer 5. The material of the release layer is prior art. The release layer in contact with the adhesive layer 2 is the first release layer 1, and the first release layer 1 completely covers the dressing, that is, the area of the first release layer 1 is equal to the area of the dressing.

[0040] Optionally, the release layer in contact with the film layer 5 is the second release layer 6. The area of the second release layer 6 is less than or equal to the area of the film layer 5. An attachable information recording strip 7 is provided on the release layer for recording patient information and pasting it on the film layer 5.

[0041] Optionally, a handle is cut out on one side of the release layer, and the staff operates by contacting the handle without contacting the position where the dressing contacts the skin, preventing the dressing from being contaminated.

[0042] Optionally, the film layer 5 is a PU film, enhancing the mechanical properties of the dressing, preventing the dressing from breaking, and also isolating moisture, external pollutants, and pathogenic bacteria.

[0043] When in use, disinfect the skin around the indwelling needle, remove the first release layer 1, align the position of the dressing that does not cover the adhesive layer 2 with the indwelling needle, paste the dressing on the skin, remove the second release layer 6, and paste the information recording strip 7 with information on the required position.

[0044] Although the specific implementation manners of the present utility model have been described above in conjunction with the accompanying drawings, they do not limit the protection scope of the present utility model. Those skilled in the art should understand that, based on the technical solutions of the present utility model, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present utility model.

Claims

1. An antibacterial indwelling needle dressing, characterized in that, Comprising: A first antibacterial layer and a second antibacterial layer, which are used to sterilize the covered skin; The second antibacterial layer covers the upper side of the first antibacterial layer; A film layer is covered on the upper side of the second antibacterial layer, which is at least used to enhance the anti-stretching performance of the patch; An adhesive layer is arranged on the lower side of the first antibacterial layer and is configured to contact the skin and be used to bond the patch to the skin; The adhesive layer is partially arranged on the lower side of the first antibacterial layer and is annularly arranged at the edge of the first antibacterial layer.

2. The antibacterial indwelling needle dressing according to claim 1, wherein The first antibacterial layer contains nano silver particles or silver ions.

3. The antibacterial indwelling needle dressing according to claim 1, wherein, The second antibacterial layer contains nano titanium dioxide and also contains nano copper particles or copper ions.

4. The antibacterial indwelling needle dressing according to claim 1, wherein The adhesive layer is a hydrocolloid layer, and the hydrocolloid layer has adhesiveness.

5. The antibacterial indwelling needle dressing according to claim 1, wherein A release layer is arranged on the lower side of the adhesive layer or the upper side of the film layer.

6. The antibacterial indwelling needle dressing according to claim 1, wherein Release layers are arranged on both the lower side of the adhesive layer and the upper side of the film layer.

7. The antibacterial indwelling needle dressing according to claim 5, wherein The release layer at least partially covers the upper side of the film layer, and an attachable information recording strip is arranged on the film layer.

8. The antibacterial indwelling needle dressing according to claim 5, characterized in that, The area of the release layer is less than or equal to the area of the patch.

9. The antibacterial indwelling needle dressing according to claim 5, characterized in that, A handle is arranged on one side of the release layer, and the handle is integrally arranged with the release layer.

10. The antibacterial indwelling needle dressing according to claim 1, wherein The film layer is a PU film.

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