Waterproof breathable hydrocolloid patch
By incorporating a plastic film and waterproof patch into the waterproof and breathable hydrocolloid dressing, the problem of insufficient waterproof performance of the dressing during showering is solved, achieving effective waterproofing and restoration of breathability during showering, and promoting wound healing.
Patent Information
- Application Number
- CN202423005685.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing waterproof and breathable hydrocolloid dressings do not provide strong waterproofing when showering, allowing water to easily enter the wound, affecting wound healing, and are inconvenient to use.
The design incorporates a plastic film and waterproof tape, combined with micropores and medical adhesive to achieve temporary sealing and restoration of breathability during showering. By fixing the edges of the backing layer with a plastic film and sealing the pores with a waterproof tape, breathability can be restored after showering.
While maintaining waterproof performance, it significantly improves breathability, making it convenient to use in the shower, preventing water from entering the wound, and promoting wound healing.
Smart Images

Figure CN223759980U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to waterproof and breathable water glue body plaster technical field, concretely is a waterproof and breathable water glue body plaster. BACKGROUND
[0002] The main components of the waterproof and breathable water glue body plaster are sodium carboxymethyl cellulose (CMC) synthetic elastomer, medical adhesive, synthetic plasticizer and surface polyurethane (PU) semi-permeable membrane. Its structure is usually divided into three layers: wound contact surface, polymer matrix and backing. The waterproof and breathable water glue body plaster is widely used in the management of various superficial wounds in clinical practice, such as abrasions, burns, cuts, ulcers, pressure sores, phlebitis and infant care, etc. In addition, it can also be used for wound care, dermatitis prevention and treatment, as well as pipeline fixation and other scenes. The waterproof and breathable water glue body plaster can be breathable when used, but the waterproof performance is not strong, and water can easily enter the wound through the water glue body plaster when the user takes a shower, which can cause the wound to worsen. Therefore, the water glue body plaster needs to be avoided during showering, which is not easy to use and has certain shortcomings. Therefore, we propose a waterproof and breathable water glue body plaster. SUMMARY
[0003] The utility model aims at solving the problems in the prior art or related art.
[0004] Therefore, the utility model adopts the technical scheme: a waterproof and breathable water glue body plaster, including backing layer, water glue body layer, contact layer, plastic film and waterproof paste, the water glue body layer is arranged at the bottom of the backing layer, the contact layer is arranged at the bottom of the water glue body layer, the plastic film is bonded at the top of the backing layer, the plastic film is printed with frame line, the waterproof paste is arranged at the top of the plastic film, the front end of waterproof paste is bonded with hardboard.
[0005] Preferably, the backing layer is a semi-permeable PU backing, and an observation window is provided at the middle position of the backing layer. A plurality of micropores are arranged on the backing layer.
[0006] Preferably, the water glue body layer is a CMC water glue body.
[0007] Preferably, the contact layer is a medical non-woven fabric.
[0008] Preferably, the bottom end of the waterproof paste, the plastic film and the backing layer is coated with a medical adhesive, and a through hole is provided at the middle position of the plastic film.
[0009] Preferably, it further includes a release paper, the release paper is bonded at the bottom of the waterproof paste, and an extension is provided at the right side of the release paper.
[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: By setting a plastic film and a waterproof sticker, this utility model facilitates use during showering without affecting the use of hydrocolloid dressing. At the same time, by setting micropores, air and water vapor can be allowed to pass through while preventing liquids and microorganisms from entering. It can significantly improve breathability while maintaining waterproof performance. During use, the user can fix the edge of the backing layer with the plastic film to prevent the backing layer from curling up and affecting use. When showering, the user can tear off the release paper, align the waterproof sticker with the frame line of the plastic film, and then stick the waterproof sticker to the plastic film with medical adhesive to seal the pores of the plastic film, achieving a completely waterproof effect for showering. After showering, the user can pinch the cardboard and then tear off the waterproof sticker through the cardboard to restore breathability for use. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the middle backing layer and the plastic film;
[0013] Figure 3 This utility model Figure 1 Schematic diagram of the internal structure of the middle backing layer;
[0014] Figure 4 This utility model Figure 1 A schematic diagram of the structure of the waterproof adhesive and release paper;
[0015] Figure 5 This utility model Figure 1 A schematic diagram of the structure of the waterproof tape.
[0016] Figure label:
[0017] 100. Backing layer; 101. Observation window; 102. Micropores;
[0018] 200. Hydrocolloid layer;
[0019] 300, contact layer;
[0020] 400. Plastic film; 401. Frame; 402. Through hole;
[0021] 500, Waterproof tape; 501, Cardboard; 502, Medical adhesive;
[0022] 600, release paper; 601, extension section. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0024] The following description, in conjunction with the accompanying drawings, describes some embodiments of this utility model that provide a waterproof and breathable hydrocolloid dressing.
[0025] Example 1:
[0026] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a waterproof and breathable hydrocolloid dressing, including a backing layer 100, a hydrocolloid layer 200, a contact layer 300, a plastic film 400, and a waterproof patch 500.
[0027] Specifically, the backing layer 100 is a semi-permeable PU backing. An observation window 101 is provided in the middle of the backing layer 100, and several micropores 102 are arranged on the backing layer 100. During use, the backing layer 100 can effectively prevent external moisture, bacteria and viruses from entering the wound, thereby avoiding infection. At the same time, it is breathable, allowing water vapor to escape from the inside of the wound, preventing the wound from being too moist. The micropores 102 can improve the breathability of the backing layer 100, and the observation window 101 can be used to observe the usage condition for replacement.
[0028] Specifically, the hydrocolloid layer 200 is placed at the bottom of the backing layer 100. The hydrocolloid layer 200 is a CMC hydrocolloid. When in use, the hydrocolloid layer 200 can absorb the exudate from the wound and form a moist gel, providing a moist healing environment for the wound. This moist environment helps cell growth and repair, and accelerates wound healing.
[0029] Specifically, the contact layer 300 is located at the bottom of the hydrocolloid layer 200. The contact layer 300 is a medical non-woven fabric. When in use, the softness and skin-friendly nature of the contact layer 300 can reduce irritation and friction to the wound. At the same time, it can also help keep the wound clean and moist, providing necessary support for wound healing.
[0030] Specifically, the plastic film 400 is bonded to the top of the backing layer 100. The plastic film 400 is printed with a frame line 401. During use, the plastic film 400 fixes the edge of the backing layer 100 to prevent the backing layer 100 from curling up and affecting its use.
[0031] It should be noted that the bottom ends of the waterproof patch 500, the plastic film 400, and the backing layer 100 are all coated with medical adhesive 502. The plastic film 400 has a through hole 402 in the middle. During use, the medical adhesive 502 is used for bonding, which facilitates the fixation of the waterproof patch 500, the plastic film 400, and the backing layer 100. The through hole 402 prevents the plastic film 400 from interfering with the breathability of the backing layer 100.
[0032] Specifically, the waterproof sticker 500 is placed on top of the plastic film 400, and a cardboard 501 is attached to the front end of the waterproof sticker 500. When in use, the waterproof sticker 500 is aligned with the frame line 401 of the plastic film 400. After alignment, the waterproof sticker 500 is attached to the plastic film 400 with medical adhesive 502, which seals the through hole 402 of the plastic film 400 and achieves a completely waterproof effect for showering.
[0033] Example 2:
[0034] Reference Figure 3 This is the second embodiment of the present invention, which differs from the first embodiment in that it also includes a release paper 600, which is adhered to the bottom of the waterproof sticker 500. An extension 601 is provided on the right side of the release paper 600. In use, the extension 601 can be pinched, and the release paper 600 can be torn off after pinching, so that the waterproof sticker 500 can be used to seal the through hole 402 of the plastic film 400.
[0035] The working principle and usage process of this utility model are as follows: During use, the user can fix the edge of the backing layer 100 with the plastic film 400 to prevent the backing layer 100 from curling up and affecting its use. When showering, the user can tear off the release paper 600, align the waterproof sticker 500 with the frame line 401 of the plastic film 400, and then use medical adhesive 502 to stick the waterproof sticker 500 onto the plastic film 400, thereby sealing the through holes 402 of the plastic film 400 and achieving a completely waterproof effect for showering. After showering, the user can pinch the cardboard 501 and then tear off the waterproof sticker 500 through the cardboard 501 to restore breathability for use. At the same time, by setting micropores 102, air and water vapor can be allowed to pass through, while preventing liquids and microorganisms from entering. This can significantly improve the breathability of the backing layer 100 while maintaining waterproof performance.
[0036] Although embodiments of the present invention 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 the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A waterproof, breathable hydrocolloid dressing, characterized by, It includes: a backing layer (100); a hydrocolloid layer (200) arranged at the bottom of the backing layer (100); a contact layer (300) arranged at the bottom of the hydrocolloid layer (200); a plastic film (400) bonded at the top of the backing layer (100), the plastic film (400) being printed with a frame line (401); a waterproof patch (500) arranged at the top of the plastic film (400), the front end of the waterproof patch (500) being bonded with a hardboard (501).
2. A waterproof, breathable hydrocolloid dressing according to claim 1, wherein The backing layer (100) is a semi-permeable PU backing, the backing layer (100) being provided with an observation window (101) at the middle position, and a plurality of micropores (102) being arranged on the backing layer (100).
3. The waterproof, breathable hydrocolloid dressing of claim 1, wherein, The hydrocolloid layer (200) is a CMC hydrocolloid.
4. The waterproof, breathable hydrocolloid dressing of claim 1, wherein, The contact layer (300) is a medical non-woven fabric.
5. The waterproof, breathable hydrocolloid dressing of claim 1, wherein, The bottom end of the waterproof patch (500), the plastic film (400) and the backing layer (100) are all coated with a medical adhesive (502), and a through hole (402) is formed at the middle position of the plastic film (400).
6. The waterproof, breathable hydrocolloid dressing of claim 1, wherein, It also includes a release paper (600) bonded at the bottom of the waterproof patch (500), and an extension (601) is arranged at the right side of the release paper (600).