Medical silica gel particle application device for keloid external radiotherapy

Abstract

The utility model belongs to the technical field of scar treatment devices, and relates to a medical silica gel particle application device for keloid external radiotherapy, which comprises a base layer, the base layer is a self-adhesive medical transparent silica gel sheet, one side of the base layer is an adhesive surface attached to the skin, and the other side of the base layer is a non-adhesive surface; the non-sticky surface forms a marking surface and is provided with a particle positioning mark corresponding to the scar; the colloid layer is arranged at the particle positioning mark and forms a lattice structure; the covering layer is a self-adhesive medical transparent silica gel sheet, one side of the covering layer is an adhesive surface attached to the base layer, and the other side of the covering layer is an outward non-adhesive surface; the base layer and the covering layer form a closed interlayer, and the colloid layer is closed in the interlayer and is isolated from the skin. The medical silica gel particle application device for the keloid external radiotherapy has the advantages of simple structure and convenience in operation, and is particularly suitable for being used in primary hospitals.

Description

Technical Field

[0001] This utility model belongs to the technical field of scar treatment devices, and relates to a medical silicone particle dressing device for external radiation therapy of keloids. Background Technology

[0002] Radioactive patch therapy is a non-invasive method that uses specific energy rays released during the decay of radioactive nuclides to target and treat skin lesions. The rays released during the decay of radioactive nuclides (such as the characteristic X-rays and low-energy gamma rays released by I-125 particles) can penetrate deep into the pathological tissue of keloids, effectively inhibiting fibroblast proliferation and collagen synthesis, regulating inflammatory responses, and suppressing angiogenesis, thereby achieving the therapeutic goal of inhibiting keloid hyperplasia.

[0003] For example, Chinese invention patent application CN118767346A (publication date 2024.10.15) discloses a dot matrix radionuclide dressing device and its preparation method. The dot matrix radionuclide dressing device includes: a dressing substrate that matches the size of the target scar tissue area and a sealing cover covering the surface of the dressing substrate; the dressing substrate has a radiation groove; the radiation groove is filled with a hydrogel radioactive material that matches the shape and size of the radiation groove and is used to treat the target scar tissue.

[0004] The aforementioned dot matrix radionuclide dressing device requires a lot of specialized equipment, such as laser positioning and etching equipment, which are expensive and rarely available in primary hospitals. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a medical silicone particle dressing device for external radiation therapy of keloids. It has the advantages of simple structure and convenient operation, and is especially suitable for use in primary hospitals.

[0006] To solve the above-mentioned technical problems, the objective of this utility model is achieved through the following technical solution:

[0007] A medical silicone particle dressing device for external radiation therapy of keloids, comprising:

[0008] The base layer is a self-adhesive medical transparent silicone sheet, one side of which is an adhesive surface that adheres to the skin, and the other side is a non-adhesive surface. The non-adhesive surface forms a marking surface and is provided with particle positioning marks corresponding to the scar.

[0009] A colloidal layer, wherein the colloidal layer is disposed at the particle positioning mark and forms a lattice structure;

[0010] The covering layer is a self-adhesive medical transparent silicone sheet, with one side being an adhesive surface that adheres to the base layer and the other side being an outward-facing non-adhesive surface.

[0011] The base layer and the covering layer form a closed interlayer, and the colloidal layer is sealed within the interlayer and isolated from the skin.

[0012] In the above-mentioned medical silicone particle dressing device for external radiation therapy of keloids, the colloidal layer uses a conventional colloidal material in the art, such as cyanophthalic acid ester encapsulating radioactive particles, such as iodine-125.

[0013] In the aforementioned medical silicone particle dressing device for external radiation therapy of keloids, the light transmittance of the base layer and the covering layer is greater than 90%.

[0014] In the aforementioned medical silicone particle dressing device for external radiation therapy of keloids, the base layer has a Shore hardness of 20A-30A and a thickness of 0.08-0.10cm. The base layer adheres tightly to the skin and undergoes elastic deformation, exerting a pressure of 5-10mmHg on the skin.

[0015] In the above-mentioned medical silicone particle dressing device for external radiation therapy of keloids, the particle positioning marks are dot matrix marks, and the spacing between adjacent particle positioning marks is 0.8-1.5cm; the spacing between the positioning marks decreases as the height of the scar increases.

[0016] In the aforementioned medical silicone particle dressing device for external radiation therapy of keloids, a reflective layer is covered outside the colloidal layer, with the reflective surface of the reflective layer facing the colloidal layer, and the covering layer covers the reflective layer and fixes the reflective layer.

[0017] In the aforementioned medical silicone particle dressing device for external radiation therapy of keloids, the shape of the reflective layer is the same as that of the covering layer but the size is smaller than that of the covering layer. The shape and size of the covering layer are the same as those of the base layer. The outer edge of the covering layer extends beyond the reflective layer and adheres to the base layer.

[0018] In the aforementioned medical silicone particle dressing device for external radiation therapy of keloids, the reflective layer is made of silver-plated polyester film.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] 1. This utility model provides a medical silicone particle dressing device for external beam radiation therapy of keloids. It uses a self-adhesive medical transparent silicone sheet as the base layer, with the non-adhesive surface of the base layer as the marking surface. Particle positioning marks corresponding to the scar are set, and a dot-matrix colloidal layer is then set according to these particle positioning marks. The visual positioning structure provided by this utility model eliminates the need for specialized equipment such as laser positioning devices during use, significantly reducing operational complexity and making it convenient for use in primary hospitals lacking such specialized equipment.

[0021] 2. This utility model further adopts a covering layer of the same material as the base layer, forming a closed sandwich structure through the base layer and the covering layer. The double-layer adhesive sandwich design completely isolates the colloidal layer, preventing it from contacting the skin.

[0022] 3. This utility model uses a self-adhesive medical transparent silicone sheet as the base material. After it is adhered to the skin, its elastic deformation can generate continuous pressure on the skin, inhibiting scar hyperplasia, thereby creating a synergistic effect with traditional radiotherapy to achieve the function of treatment and rehabilitation.

[0023] 4. This utility model can further increase the reflective layer to reflect the scattered radiation to the scar tissue, reduce the exposure of healthy tissue, reduce side effects, and also improve the radiation utilization rate. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0026] Figure 3 yes Figure 2 Enlarged view of point A;

[0027] Reference numerals in the attached diagram: 1. Base layer; 2. Marking surface; 3. Particle positioning mark; 4. Colloidal layer; 5. Covering layer; 6. Reflective layer. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 :

[0029] A medical silicone particle dressing device for external radiation therapy of keloids, comprising:

[0030] Base layer 1, wherein the base layer 1 is a self-adhesive medical transparent silicone sheet, one side of which is an adhesive surface that adheres to the skin, and the other side is a non-adhesive surface. The non-adhesive surface forms a marking surface 2 and is provided with particle positioning marks 3 corresponding to the scar.

[0031] Colloidal layer 4, wherein the colloidal layer 4 is disposed at the particle positioning mark 3 and forms a dot matrix structure;

[0032] Covering layer 5, which is a self-adhesive medical transparent silicone sheet, with one side being an adhesive surface that adheres to the base layer 1 and the other side being an outward-facing non-adhesive surface;

[0033] The base layer 1 and the covering layer 5 form a closed interlayer, and the colloidal layer 4 is sealed inside the interlayer and isolated from the skin.

[0034] In this embodiment, the method of using the dressing device is as follows: the base layer 1 is covered over the keloid. The light transmittance of the silicone sheet allows direct visualization of the scar outline. A surgical marker is used to set particle positioning marks 3 on the marked surface of the base layer 1 in the area where the scar is located. Then, an adhesive dispensing pen is used to apply adhesive to the particle positioning marks 3 to form an adhesive layer 4. After the adhesive dispensing is completed, the covering layer 5 is placed on the adhesive layer 4 and its perimeter is pressed to make the covering layer 5 adhere to the base layer 1.

[0035] In this embodiment, the colloidal layer 4 is a conventional colloidal material in the art, such as cyanophthalic acid ester encapsulating radioactive particles, such as iodine-125 (energy radiation range of 27-35 keV).

[0036] Preferably, in order to ensure a transparent and visible structure, the light transmittance of the base layer 1 and the cover layer 5 is greater than 90%.

[0037] The aforementioned base layer 1 adheres closely to the skin and undergoes elastic deformation. By adjusting the thickness and Shore hardness of the base layer 1, its elastic deformation capability can be altered, thereby adjusting the pressure it exerts on the skin: the Shore hardness of the base layer 1 is 20A-30A, the thickness is 0.08-0.10cm, and the pressure it exerts on the skin is 5-10mmHg; in this embodiment, elastic deformation can continuously apply pressure to the skin, inhibiting scar hyperplasia.

[0038] The aforementioned particle positioning marker 3 is a dot matrix marker, and the spacing between adjacent particle positioning markers 3 is 0.8-1.5cm; the spacing of the positioning markers decreases as the height of the scar increases. For example, when the height of the scar is less than 3mm, the spacing is 1.5cm; when the height of the scar is between 3mm and 5mm, the spacing is 1.0cm; and when the height of the scar is greater than 5mm, the spacing is 0.8cm.

[0039] This embodiment further includes an emitting layer for reflecting the scattered radiation of the colloidal layer 4. The specific structure is as follows: a reflective layer 6 is covered on the outside of the colloidal layer 4, the reflective surface of the reflective layer 6 faces the colloidal layer 4, and the covering layer 5 covers the reflective layer 6 and fixes the reflective layer 6.

[0040] Furthermore, the reflective layer 6 has the same shape as the cover layer 5 but is smaller in size. The cover layer 5 has the same shape and size as the base layer 1, and the outer edge of the cover layer 5 extends beyond the reflective layer 6 and is attached to the base layer 1.

[0041] In this embodiment, the reflective layer 6 is a silver-plated polyester film.

[0042] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A medical silicone particle dressing device for external radiation therapy of keloids, characterized in that, include: The base layer (1) is a self-adhesive medical transparent silicone sheet, one side of which is an adhesive surface that adheres to the skin, and the other side is a non-adhesive surface. The non-adhesive surface forms a marking surface (2) and is provided with particle positioning marks (3) corresponding to the scar. A colloidal layer (4) is disposed at the particle positioning mark (3) and forms a lattice structure; Covering layer (5), the covering layer (5) is a self-adhesive medical transparent silicone sheet, one side of which is an adhesive surface that adheres to the base layer (1) and the other side is an outward non-adhesive surface; The base layer (1) and the covering layer (5) form a closed interlayer, and the colloidal layer (4) is sealed inside the interlayer and isolated from the skin.

2. The medical silicone particle dressing device for external radiation therapy of keloids according to claim 1, characterized in that, The light transmittance of the base layer (1) and the covering layer (5) is greater than 90%.

3. The medical silicone particle dressing device for external radiation therapy of keloids according to claim 1, characterized in that, The base layer (1) has a Shore hardness of 20A-30A and a thickness of 0.08-0.10cm. The base layer (1) adheres tightly to the skin and undergoes elastic deformation, and the pressure it exerts on the skin is 5-10mmHg.

4. The medical silicone particle dressing device for external radiation therapy of keloids according to claim 1, characterized in that, The particle positioning mark (3) is a dot matrix mark, and the spacing between adjacent particle positioning marks (3) is 0.8-1.5cm.

5. A medical silicone particle dressing device for external radiation therapy of keloids according to claim 1, characterized in that, The colloidal layer (4) is covered with a reflective layer (6), the reflective surface of the reflective layer (6) facing the colloidal layer (4), and the covering layer (5) covers the reflective layer (6) and fixes the reflective layer (6).

6. A medical silicone particle dressing device for external radiation therapy of keloids according to claim 5, characterized in that, The shape of the reflective layer (6) is the same as that of the cover layer (5), but the size is smaller than that of the cover layer (5). The shape and size of the cover layer (5) are the same as those of the base layer (1). The outer edge of the cover layer (5) extends beyond the reflective layer (6) and is attached to the base layer (1).

7. A medical silicone particle dressing device for external radiation therapy of keloids according to claim 5, characterized in that, The reflective layer (6) is made of silver-plated polyester film.

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