A phototherapy protective patch for vitiligo

By introducing a transparent writing layer and reflective film into the vitiligo phototherapy protective patch, the problem of covering cloth or protective patch being difficult to adhere to the edge of the white patches is solved, achieving fast and precise cutting and efficient skin protection.

CN224937260UActive Publication Date: 2026-11-06THE THIRD XIANGYA HOSPITAL OF CENT SOUTH UNIV
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Patent Information

Application Number
CN202522796548.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-30
Publication Date
2026-11-06
Estimated Expiration
2035-12-30

AI Technical Summary

Technical Problem

In existing technologies, covering cloths or protective patches are difficult to completely adhere to the edges of vitiligo lesions, making the process cumbersome and inconvenient, and failing to effectively protect normal skin.

Method used

A phototherapy protective patch for vitiligo has been designed, comprising a transparent writing layer, an adhesive layer, and a reflective film. The transparent writing layer is used to outline the white patches, the adhesive layer is used to adhere to the skin, and the reflective film is used to reflect light, simplifying the cutting process and improving the fitting accuracy.

Benefits of technology

It enables the rapid and precise cutting of light-transmitting holes that match the contours of the vitiligo lesions, reducing operational steps, improving fit, lowering the risk of skin irritation and allergies, and protecting normal skin.

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Abstract

This utility model discloses a phototherapy protective patch for vitiligo, relating to the field of medical care products technology. It includes an adhesive tape body comprising an adhesive layer and a base tape. The adhesive layer is located below the base tape and is fixedly connected to it. A transparent writing layer is provided above the base tape, with one side fixedly connected to the base tape and the other side freely rotatable. A release film is provided below the adhesive layer. This utility model allows for precise tracing of the outline of the vitiligo lesions through the transparent writing layer, enabling the cutting of light-transmitting holes that closely conform to the boundaries of the vitiligo lesions. This utility model has a simple structure, low processing cost, quick operation, high flexibility, and significant practical value.
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Description

Technical Field

[0001] This utility model relates to the field of medical care products technology, and in particular to a phototherapy protective patch for vitiligo. Background Technology

[0002] Vitiligo is a disease caused by the destruction of melanocytes in the skin, leading to a lack of melanin and the formation of localized white patches. Treatment for vitiligo mainly includes medication, phototherapy, hormone therapy, and small-area skin grafting. Treatment plans may vary depending on the patient's condition and individual differences. Phototherapy for vitiligo works by using specific wavelengths of ultraviolet light (such as narrow-band UVB or UVA, or a 308nm excimer laser) to irradiate the skin. Through mechanisms such as immune regulation, stimulation of melanin production, and activation of hair follicle storage, it helps restore pigmentation in the white patches. However, phototherapy for vitiligo has relatively common side effects. For example, during short-term irradiation, patients may experience erythema, itching, or even blisters. Longer-term irradiation can lead to skin aging problems such as roughness or peeling, and may even cause skin tumors. Therefore, it is necessary to protect the normal skin surrounding the white patches during phototherapy. Currently, clinical practice generally involves using sunscreen, clothing, or blackout cloth to cover the normal skin to avoid excessive sun exposure and worsening of the pigmentation difference. However, the protective effect of sunscreen in clinical practice is very limited; and when using clothing or blackout cloth to cover the white patches, since the white patches are usually irregular areas, it is not possible to cover the normal skin well along the outline of the white patches with clothing or blackout cloth. The blackout cloth is also difficult to fix to the limbs, hands and feet, and is easy to move and slip off; secondly, it is also difficult for medical staff to cut out a covering cloth that is exactly similar in shape and size to the white patches with scissors.

[0003] A search revealed that patent number "CN210582841U" discloses a protective patch for the periphery of vitiligo lesions. The patch includes an easy-tearable material suitable for application to the patient's skin surface, with a central tear forming a light-reflecting opening to expose the vitiligo lesions, and a reflective film to reflect light and protect the periphery of the vitiligo lesions. The reflective film is coated on the upper surface of the easy-tearable material. However, in practice, medical personnel need to frequently tear off the easy-tearable material located in the center of the tape using their hands or tweezers to create an area similar in shape to the white patch. Furthermore, during the tearing process, because the white patch is covered by the protective patch, it is difficult for the person performing the tearing operation to observe the boundary of the white patch, resulting in the torn area not completely adhering to the edge of the white patch. Therefore, the existing technology needs improvement. Utility Model Content

[0004] This invention addresses the problem that using covering cloths or protective films in the prior art is cumbersome and makes it difficult to ensure that the covering cloths or protective films completely adhere to the edges of white patches.

[0005] This utility model proposes a phototherapy protective patch for vitiligo, comprising an adhesive tape body, the adhesive tape body including an adhesive layer and a base tape, the adhesive layer being located below the base tape and fixedly connected to the base tape; a transparent writing layer is provided above the base tape, one side of the transparent writing layer being fixedly connected to the base tape, and the other side being freely rotatable; a release film is provided below the adhesive layer; an easy-tear line is provided on the transparent writing layer near the connection with the base tape; preferably, a reflective film is attached to the upper surface of the base tape.

[0006] Preferably, the transparent writing layer is a transparent writing film.

[0007] Preferably, the adhesive layer is any one of a silicone gel layer, a hydrogel layer, or a medical pressure-sensitive adhesive layer.

[0008] Preferably, the thickness of the protective film is 2-5mm.

[0009] Preferably, the thickness of the protective film is 3.5 mm.

[0010] Preferably, the width of the tape body is in the range of 10cm-20cm.

[0011] The beneficial effects of this utility model are: 1. This utility model provides a transparent writing layer on the tape body, allowing the transparent writing layer to be applied separately to the white spot when cutting the protective sticker. The outline of the white spot can then be traced with a pen. The transparent writing layer and the tape body are then overlapped and cut. This cutting method is quick and allows the cut light-transmitting holes to fit well with the edge of the white spot. It is also highly flexible and has great practical value.

[0012] 2. The adhesive layer of this utility model is any one of a silicone gel layer, a hydrogel layer, or a medical pressure-sensitive adhesive layer, which allows the protective patch to be applied well and elastically to the patient's epidermis. It has a gentle touch, reduces irritation to the patient's epidermis, and lowers the probability of allergies. In addition, this type of adhesive is easy to tear, so it will not tear the patient's skin when it is removed, thus improving the patient's comfort.

[0013] 3. The present invention has a reflective film on the upper surface of the base tape, which reflects the light shining on the tape body during phototherapy, effectively reducing heat accumulation on normal skin and protecting normal skin. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention.

[0015] Component names and serial numbers: 1. Tape body; 11. Base tape; 12. Adhesive layer; 13. Release film; 14. Reflective film; 2. Transparent writing layer; 21. Easy-tear line. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. The following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning as understood by a person skilled in the art to which this disclosure pertains. The words “comprising” or “including” or similar terms used in this disclosure mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.

[0018] like Figure 1 and Figure 2 As shown, this utility model proposes a phototherapy protective patch for vitiligo, including an adhesive tape body 1. The adhesive tape body 1 includes an adhesive layer 12 and a base tape 11. The adhesive layer 12 is located below the base tape 11 and is fixedly connected to the base tape 11. The base tape 11 is opaque. A transparent writing layer 2 is provided above the base tape 11. One side of the transparent writing layer 2 is fixedly connected to the base tape 11, and the other side can be freely rotated with the fixed side as an axis. A release film 13 is provided below the adhesive layer 12. Before phototherapy, the operator can accurately trace the outline of the patient's vitiligo on the transparent writing layer 2, and then cut the transparent writing layer 2 together with the adhesive tape body 1 along the traced outline to obtain a light-transmitting hole that perfectly matches the outline of the vitiligo. The entire cutting process is quick and smooth.

[0019] Specifically, the transparent writing layer 2 is a transparent writing film. The writing film is a mature product in the existing market and uses existing technology. Of course, any other product on the market that can achieve similar or the same effect can also be selected.

[0020] Specifically, the transparent writing layer 2 has an easy-tear line 21 near the connection point with the base tape 11. After the tape body 1 is cut, to avoid the remaining transparent writing layer 2 interfering with the phototherapy process, the transparent writing layer 2 can be easily torn off along the easy-tear line 21.

[0021] Specifically, the adhesive layer 12 is any one of a silicone gel layer, a hydrogel layer, or a medical pressure-sensitive adhesive layer. This type of adhesive has a mild feel and moderate stickiness, allowing it to adhere very well to the patient's epidermis, reducing irritation to the patient's epidermis, lowering the probability of allergies, and can be easily peeled off the patient's epidermis without causing severe irritation or pulling.

[0022] Specifically, a reflective film 14 is attached to the upper surface of the baseband 11. The reflective film 14 can reflect a portion of the light during the phototherapy process, which can greatly reduce the harm to the patient's normal skin caused by ultraviolet rays and heat accumulation during long-term phototherapy.

[0023] Specifically, the thickness of the protective film is 3.5mm.

[0024] Specifically, the width of the tape body 1 ranges from 10cm to 20cm. This size range allows for the manufacture of various protective patches or protective patch rolls, adaptable to different sizes of vitiligo lesions.

[0025] Working process and principle: Before phototherapy, the operator first applies the transparent writing layer 2 separately to the vitiligo area, then traces the outline of the vitiligo on the transparent writing layer 2 with a pen, then overlaps the transparent writing layer 2 with the tape body 1 and cuts it along the traced outline. After cutting, the transparent writing layer 2 is peeled off along the tear line 21. Finally, the release film 13 is peeled off, and the tape body 1 is applied to the patient's epidermis along the outline of the vitiligo. Then the phototherapy device can be turned on to perform phototherapy.

[0026] The above description is a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and concept of this utility model, should be covered within the protection scope of the claims of this utility model.

Claims

1. A vitiligo phototherapy protection patch comprising a tape body (1), characterized in that: The tape body (1) includes an adhesive layer (12) and a base tape (11). The adhesive layer (12) is located below the base tape (11) and is fixedly connected to the base tape (11). A transparent writing layer (2) is provided above the base tape (11). One side of the transparent writing layer (2) is fixedly connected to the base tape (11), and the other side can be freely flipped. A release film (13) is provided below the adhesive layer (12). An easy-tear line (21) is provided near the connection between the transparent writing layer (2) and the base tape (11). A reflective film (14) is attached to the upper surface of the base tape (11).

2. The phototherapy protective patch for vitiligo according to claim 1, characterized in that: The transparent writing layer (2) is a transparent writing film.

3. The phototherapy protective patch for vitiligo according to claim 1, characterized in that: The adhesive layer (12) is any one of a silicone gel layer, a hydrogel layer, or a medical pressure-sensitive adhesive layer.

4. A phototherapy protective patch for vitiligo according to any one of claims 1-3, characterized in that: The thickness of the protective film is 2-5mm.

5. The vitiligo phototherapy protective patch according to claim 4, characterized in that: The thickness of the protective film is 3.5mm.

6. A phototherapy protective patch for vitiligo according to any one of claims 1-3, characterized in that: The width of the tape body (1) ranges from 10cm to 20cm.

Citation Information

Patent Citations

  • Vitiligo skin lesion periphery protection paste

    CN210582841U