Microporous membrane polyurethane transparent medical infusion paste
By designing microporous structure and improved positioning handle on the polyurethane transparent film, the problems of insufficient fixation and skin allergies in the polyurethane film are solved, and high adhesion, waterproof, breathable and comfortable are achieved, and are suitable for medical infusion patches.
Patent Information
- Application Number
- CN202420244201.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The existing polyurethane transparent film has poor fixation and patients suffer from sweating and dampness, resulting in skin allergies and decreased viscosity.
A transparent medical infusion patch for microporous membrane polyurethane is designed, including polyurethane film, non-woven film, glue coating layer, release paper backing and release paper. The surface of the polyurethane film has 0.2~10μm micropores, and glue coating is added. The layer and the improved positioning handle structure enhance fixity and comfort, and achieve waterproof and breathable effect through the microporous structure.
It achieves strong adhesion and peeling force, avoids skin allergies and deterioration, maintains good fixity, comfort, transparency, moisture permeability, waterproof, antibacterial and high elasticity, and is suitable for clinical use.
Smart Images
Figure CN222172459U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transparent films, in particular to a microporous film polyurethane transparent medical infusion patch. Background Art
[0002] As the name implies, polyurethane transparent film is made of polyurethane film coated with medical pressure-sensitive adhesive. It has high transparency and is convenient for direct observation of the puncture site of the indwelling needle. The unique molecular structure of polyurethane gives it excellent resilience, good softness, waterproof and breathable properties, and low price. It has unparalleled advantages in the medical and health field over other materials.
[0003] In the prior art, while having the above advantages, the polyurethane transparent film has a strong adhesive force and peeling force and good water vapor permeability according to its internal structure, but the fixation is poor; and the patient's sweating and humidity cause skin allergies and decreased viscosity. Utility Model Content
[0004] The utility model aims to provide a microporous polyurethane transparent medical infusion patch to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a microporous membrane polyurethane transparent medical infusion patch, comprising a polyurethane film, a non-woven fabric film is arranged at the edge of the polyurethane film, a rubber coating layer is arranged on the surface of the non-woven fabric film, a release paper backing and a peeling paper are arranged on both sides of the non-woven fabric film, a transparent film is arranged on the surface of the peeling paper, and a plurality of micropores of 0.2 to 10 μm are opened on the surface of the polyurethane film.
[0006] Preferably, the polyurethane film is an elliptical sheet, one end of the polyurethane film is cut with a straight edge, and the non-woven fabric film and the rubber coating layer are both annular sheets.
[0007] Preferably, the release paper backing is an oval sheet, the size of the release paper backing is larger than the size of the non-woven fabric film, and both ends of the release paper backing are integrally formed with a film positioning handle one, and the film positioning handle one is a square sheet.
[0008] Preferably, the release paper is an oval sheet, the size of the release paper is equal to the size of the release paper backing, both ends of the release paper are integrally formed with a second film positioning handle, the second film positioning handle is a square sheet, and the width of the second film positioning handle is smaller than the width of the first film positioning handle.
[0009] Preferably, a window is provided on the surface of the release paper, the transparent film covers the window, and the edge of the transparent film is fixed in the notch of the window, and the size of the window is larger than the size of the non-woven film.
[0010] Preferably, a release paper release opening is provided on the surface of the release paper, and the release paper release opening is connected to the window.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The microporous membrane polyurethane transparent medical infusion patch proposed by the utility model has strong bonding and peeling forces by opening a microporous polyurethane film, and a non-woven fabric film with a rubber coating layer is added, which has good fixation, comfort, transparency, moisture permeability, waterproofness, lightness, antibacterialness and high elasticity; and effectively avoids the problem of skin allergies and decreased viscosity caused by sweating and moisture of patients. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the structure of the utility model;
[0014] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;
[0015] Figure 3 This is a schematic diagram of the half-section structure of the utility model;
[0016] Figure 4 for Figure 3 A magnified schematic diagram of the structure at B in the middle;
[0017] Figure 5 This is a schematic diagram of the connection structure of the polyurethane film and the non-woven fabric film of the utility model;
[0018] Figure 6 It is a schematic diagram of the bottom structure of the release paper of the utility model.
[0019] In the figure: polyurethane film 1, non-woven fabric film 2, adhesive layer 3, release paper backing 4, film positioning handle 1 5, peeling paper 6, peeling paper peeling port 7, window 8, transparent film 9, film positioning handle 2 10. DETAILED DESCRIPTION
[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figures 1 to 6The utility model provides a technical solution: a microporous film polyurethane transparent medical infusion patch, comprising a polyurethane film 1, a non-woven film 2 is arranged on the edge of the polyurethane film 1, a coating layer 3 is arranged on the surface of the non-woven film 2, a release paper backing 4 and a peeling paper 6 are arranged on both sides of the non-woven film 2, a transparent film 9 is arranged on the surface of the peeling paper 6, a plurality of micropores of 0.2-10 μm are opened on the surface of the polyurethane film 1, a base film is made by dot-coating hot-melt pressure-sensitive adhesive on the polyurethane film 1, and a microporous structure of 0.2-10 μm is formed on the polyurethane film 1, which can pass water vapor molecules, but water molecules with a diameter of 100 μm cannot pass through, thereby achieving a waterproof and breathable effect.
[0022] The polyurethane film 1 is an elliptical sheet, one end of which is cut with a straight edge, and the non-woven fabric film 2 and the rubber coating layer 3 are both annular sheets; a layer of rubber-coated non-woven fabric film 2 is added around the polyurethane film 1 to change the fixation and comfort of the product, thereby reducing the friction of the indwelling needle on the patient's skin and not causing curling around the dressing, thereby ensuring that the needle is properly fixed and not easily causing infection to the patient's skin.
[0023] The release paper backing 4 is an oval sheet, the size of which is larger than that of the non-woven film 2, and both ends of the release paper backing 4 are integrally formed with a film positioning handle 1 5, which is a square sheet; the peeling paper 6 is an oval sheet, the size of which is equal to that of the release paper backing 4, and both ends of the peeling paper 6 are integrally formed with a film positioning handle 2 10, which is a square sheet, and the width of the film positioning handle 2 10 is smaller than that of the film positioning handle 1 5; a window 8 is provided on the surface of the peeling paper 6, and the transparent film 9 is covered in the window 8, and the edge of the transparent film 9 is fixed in the groove of the window 8, and the size of the window 8 is larger than that of the non-woven film 2; a peeling paper peeling opening 7 is opened on the surface of the peeling paper 6, and the peeling paper peeling opening 7 is connected to the window 8; the product is improved from the traditional octagonal shape to an elliptical shape with a fixed positioning handle, which is more convenient for clinical operation, adopts a dot coating process, increases the amount of glue coating, and the peeling strength can be increased by 20% compared with before the improvement; but the moisture permeability still maintains the original high air permeability, especially when using this product in summer, it still maintains firm adhesion and air permeability.
[0024] The polyurethane film 1, the non-woven fabric film 2, the adhesive layer 3 and the release paper backing 4 are formed in one step through front cutting, back cutting and circular pressing.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A microporous polyurethane transparent medical infusion patch, comprising a polyurethane film (1), characterized in that: The edge of the polyurethane film (1) is provided with a non-woven film (2), the surface of the non-woven film (2) is provided with a glue coating layer (3), the two sides of the non-woven film (2) are respectively provided with a release paper backing (4) and a peeling paper (6), the surface of the peeling paper (6) is provided with a transparent film (9), and the surface of the polyurethane film (1) is provided with a plurality of micropores with a diameter of 0.2 to 10 μm.
2. A microporous polyurethane transparent medical infusion patch according to claim 1, characterized in that: The polyurethane film (1) is an elliptical sheet, one end of the polyurethane film (1) is cut with a straight edge, and the non-woven fabric film (2) and the adhesive coating layer (3) are both annular sheets.
3. A microporous polyurethane transparent medical infusion patch according to claim 1, characterized in that: The release paper backing (4) is an elliptical sheet, the size of the release paper backing (4) is larger than the size of the non-woven fabric film (2), and both ends of the release paper backing (4) are integrally formed with a film-sticking positioning handle (5), and the film-sticking positioning handle (5) is a square sheet.
4. A microporous polyurethane transparent medical infusion patch according to claim 3, characterized in that: The release paper (6) is an oval sheet, the size of the release paper (6) is equal to the size of the release paper backing (4), and the two ends of the release paper (6) are integrally formed with a second film positioning handle (10), the second film positioning handle (10) is a square sheet, and the width of the second film positioning handle (10) is smaller than the width of the first film positioning handle (5).
5. The microporous polyurethane transparent medical infusion patch according to claim 1, characterized in that: A window (8) is provided on the surface of the release paper (6), a transparent film (9) covers the window (8), and an edge of the transparent film (9) is fixed in a notch of the window (8), and the size of the window (8) is larger than the size of the non-woven fabric film (2).
6. A microporous polyurethane transparent medical infusion patch according to claim 5, characterized in that: A release paper peeling opening (7) is provided on the surface of the release paper (6), and the release paper peeling opening (7) is connected to the window (8).