Skin protection device for scar treatment

Abstract

The invention belongs to the field of medical instruments, and particularly discloses a skin protection device for scar treatment, which mainly comprises a fixed ring, a movable ring, a shielding sheet, a split clamping ring and the like. The inner wall of the fixed ring is sleeved with the movable ring, and the size of the center hole defined by the shielding pieces can be adjusted by rotating the movable ring so as to adapt to scars of different sizes. A shielding piece is arranged between the fixed ring and the movable ring, and sliding of the shielding piece is achieved through a limiting column and an arc-shaped groove. A hinged shaft seat and a threaded hole seat are arranged at the bottom of the fixing ring and connected with a split type clamping ring, and a swing sleeve and a sucker are installed on the lower portion of the clamping ring to ensure that the device is stably fixed. In addition, the lower surface of the shielding sheet is connected with the gel column and the gel patch, so that the skin around the scar is cooled and protected, and heat injury is prevented. The device can adjust the size of the center hole through simple rotation operation to adapt to different scar sizes, meanwhile, the stability of a treatment area is ensured, the displacement risk is reduced, and the treatment effect is improved.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to a skin protection device for scar treatment. Background Art

[0002] Scars (such as hypertrophic scars and keloids) are fibrotic lesions caused by imbalanced collagen metabolism after skin trauma. Treatment needs to balance the repair effect with the protection of normal tissue. Scar treatment methods include laser therapy, radionuclide strontium 90 patch therapy, pressure therapy, microneedle radiofrequency, and cryotherapy. Among them, the current treatment methods mostly use laser therapy. The principle of laser therapy is to decompose scar collagen through the selective photothermal effect of laser. However, there is a risk of thermal damage during laser treatment, and the laser used to decompose scars can cause damage to intact skin.

[0003] When treating scars, cooling gel needs to be applied before the operation to locate the scar boundary, and a laser with appropriate parameters is selected according to the scar thickness. In the treatment process, the intact skin needs to be protected. The existing skin protection methods and defects are as follows: metal shading sheets: sharp edges can easily scratch the skin, and the joints cannot fit tightly; silicone film: easy to curl up at high temperatures (viscosity decreases by 50% at >60°C), and residual colloid increases the risk of infection; ice pack pressing: interrupting the treatment process (cooling needs to be stopped every 5 minutes), condensed water on the skin surface affects the laser focusing accuracy; manual shielding: nurses need to cooperate with handheld shields, and shielding accuracy depends on experience. There are also devices for skin protection in the prior art, but the existing devices are not suitable for scars of different sizes in scar treatment, are not easy to adjust, are not flexible in protecting the area next to the scar, and do not cover the intact skin of joints or other uneven parts comprehensively. Summary of the invention

[0004] In order to solve the problems mentioned above, protect intact skin during laser treatment of scars, and adapt to scars in different parts, the present invention proposes a skin protection device for scar treatment, which is composed of a fixed ring and a movable ring that are concentrically connected and a plurality of shielding sheets are installed inside. The hole surrounded by the plurality of shielding sheets exposes the scar during treatment and protects the intact skin under the shielding sheets. The shielding sheets are driven by rotating the movable ring to adjust the size of the hole through which the laser passes, thereby adapting to scars of different sizes. At the same time, the device is fixed to the scar part of the patient by a ring-shaped silicone patch and a fixed suction cup, and the skin under the shielding sheet is further protected by the gel patch. When corresponding to uneven skin, it can be adjusted by a split clamp ring to better fix the device.

[0005] To achieve the technical objectives in the above content, the present invention is realized through the following technical solutions: A skin protection device for scar treatment, including a fixing ring. The fixing ring is of an annular structure, and its inner wall is provided with a coaxially sleeved movable ring. The outer edge of the fixing ring is in a circular convex shape to limit the axial displacement of the movable ring. A number of arc-shaped grooves are formed in the fixing ring. The arc-shaped grooves are evenly distributed radially, and each arc-shaped groove is provided with a slidable limit post. A number of shielding sheets are correspondingly installed between the fixing ring and the movable ring. The shielding sheets are in contact with each other and leave a central hole at the center surrounded by the a number of shielding sheets. A positioning hole with the same diameter as the limit post is formed in the shielding sheet. The shielding sheet can slide along the track of the arc-shaped groove through the limit post. A convex key is installed on the upper surface of the shielding sheet inside the positioning hole; A number of straight grooves are formed on the lower surface of the movable ring. The straight grooves on the lower surface of the movable ring and the arc-shaped grooves of the fixing ring are both radially distributed, and the extending directions of the two are in a complementary included angle. The radial displacement amount of the shielding sheet is controlled by the included angle. The straight groove and the convex key on the shielding sheet form a sliding fit. When the movable ring rotates relative to the fixing ring, the sliding fit between the straight groove and the convex key forces the shielding sheet to slide along the track of the arc-shaped groove. Since the radial directions of the arc-shaped groove and the straight groove are opposite, the shielding sheet synchronously translates towards or away from the center of the circle, realizing continuous adjustment of the aperture;

[0006] At the bottom of the fixing ring, a hinge shaft seat and a threaded hole seat are symmetrically installed with respect to the center of the circle. A split clamping ring is hinged through the hinge shaft seat and the threaded hole seat. The lower surface of the split clamping ring is provided with a swinging sleeve through a number of bearing seats, and a fixed suction cup is sleeved inside the lower end of each swinging sleeve. The angle of the fixed suction cup can be adjusted through the split clamping ring, facilitating adaptation to joints or other uneven parts.

[0007] Further, the shielding sheet is composed of metal inside and a ceramic layer coated on the outer surface, which can effectively block the laser above the shielding sheet from passing through and protect the intact skin below the shielding sheet;

[0008] The split clamping ring includes a left clamping ring and a right clamping ring. The hinge point between the threaded hole seat and the split clamping ring uses an adjusting bolt as the hinge shaft, and the tightness between the split clamping ring and the threaded hole seat can be controlled through the adjusting bolt;

[0009] The swinging sleeve is connected to the split clamping ring through a positioning tension spring. The positioning tension spring restricts the swinging sleeve, making the device more stable when fixed;

[0010] A spring is installed inside the swinging sleeve. One end of the spring is connected inside the swinging sleeve, and the other end is connected to the upper end of the fixed suction cup, enabling the fixed suction cup to reset after moving inside the swinging sleeve;

[0011] An annular silica gel sticker is adsorbed under the fixed suction cup. The annular silica gel sticker has the same diameter as the split clamping ring. The lower surface of the annular silica gel sticker is covered with a release paper. Tearing off the release paper can make the annular silica gel sticker fit the skin, and through the cooperation of the annular silica gel sticker and the fixed suction cup, the device can be fixed more firmly, avoiding glue residue and making disassembly and replacement more convenient;

[0012] Furthermore, a clamping hole is formed in the lower surface of the shielding piece near the central hole, and a gel column is clamped in each clamping hole. The other ends of the gel columns are vertically downward and are commonly connected to a gel patch. The gel patch is soft and deformable. The edge of the gel patch contacts the inner edge of the annular silica gel sticker. The gel patch is circular and has a hole with the same diameter as the central hole at the center. By fitting the gel patch with the intact skin, the skin around the scar is cooled and protected during laser treatment;

[0013] The gel patch is divided into sectors corresponding to the shielding piece by a plurality of dividing grooves. When the shielding piece moves, it will drive the gel column, thereby pulling the gel patch, so that the hole at the center of the gel patch changes with the inner diameter of the central hole of the shielding piece;

[0014] Furthermore, arc-shaped holding blocks are symmetrically installed on the upper surface of the movable ring, which is convenient for rotating and adjusting the movable ring;

[0015] Corresponding to the holding blocks, rubber columns are vertically installed on the fixed ring. The rubber columns are in contact with the side surfaces of the holding blocks. Friction is generated between the rubber columns and the holding blocks to prevent the movable ring from moving accidentally and prevent accidental touch during laser treatment.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. Through the linkage adjustment of the shielding piece and the movable ring, and in cooperation with the fixed ring, by a simple rotation operation, the size of the central hole surrounded by the shielding piece can be adjusted to adapt to scars of different sizes, so that the laser only irradiates the position corresponding to the central hole, protecting the healthy and intact skin;

[0018] 2. The bottom of the fixed ring is connected to the split clamping ring through a hinge shaft seat and a threaded hole seat. A swing sleeve that can swing is installed under the split clamping ring, and a spring and a fixed suction cup are arranged in the sleeve. The annular silica gel sticker is fully fitted with the skin, and then the fixed suction cup is adsorbed on the surface of the annular silica gel sticker. The split clamping ring can be opened and closed for adjustment, and the swing sleeve can swing at multiple angles to ensure that the device is firmly fixed and avoid displacement during the treatment process;

[0019] 3. Connect the gel column using the clamping holes on the lower surface of the shielding sheet. The lower end of the gel column is connected to the gel patch. The gel patch is divided into fan shapes by the dividing grooves and always adheres to the skin, cooling and protecting the skin around the scar during laser treatment. At the same time, its aperture changes synchronously with the adjustment of the shielding sheet to ensure that the protection range is consistent with the treatment area and avoid thermal damage to the skin. Brief Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for description in the embodiments.

[0021] Figure 1 It is a schematic diagram of the overall upper structure of Embodiment 1 of the present invention;

[0022] Figure 2 It is a schematic diagram of the overall lower structure of Embodiment 1 of the present invention;

[0023] Figure 3 It is an exploded view of the internal structure of Embodiment 1 of the present invention;

[0024] Figure 4 It is an exploded schematic diagram of the upper half structure of Embodiment 1 of the present invention;

[0025] Figure 5 It is an exploded schematic diagram of the lower half structure of Embodiment 1 of the present invention;

[0026] Figure 6 It is a schematic diagram of the split clamping ring structure of Embodiment 1 of the present invention;

[0027] Figure 7 is Figure 6 a partial enlarged schematic diagram.

[0028] The structural names represented by the reference numerals in the drawings are as follows:

[0029] 1 - fixed ring, 101 - hinge shaft seat, 102 - threaded hole seat, 103 - arc groove, 104 - limit post, 105 - rubber post, 2 - shielding sheet, 201 - positioning hole, 202 - convex key, 203 - central hole, 204 - clamping hole, 3 - movable ring, 301 - straight groove, 302 - holding block, 4 - split clamping ring, 401 - left ring, 402 - right ring, 403 - bearing seat, 404 - positioning spring, 5 - swing sleeve, 501 - fixed suction cup, 502 - spring, 6 - gel patch, 601 - dividing groove, 602 - gel column, 7 - annular silicone sticker, 8 - adjusting bolt. Detailed Description of the Embodiments

[0030] The following will describe the present invention in detail in conjunction with the drawings and specific embodiments. Obviously, the described embodiments are only partial embodiments of the present invention, not all embodiments.

[0031] Example 1

[0032] Refer to Figures 1 to 7 shown, and a skin protection device for scar treatment proposed according to the content of this specification, including a fixing ring 1. The fixing ring 1 is in a circular ring structure and is made of medical-grade polycarbonate (PC) material, with high strength, high temperature resistance and biocompatibility, and is suitable for laser treatment environments. An activity ring 3 made of the same material as it is coaxially sleeved on the inner wall of the fixing ring 1, and the outer edge of the fixing ring 1 is in a circular convex shape to limit the axial displacement of the activity ring 3. 12 radially evenly distributed arc-shaped grooves 103 are opened in the fixing ring 1, and a slidable limit post 104 is installed in each arc-shaped groove 103. 12 shielding sheets 2 are correspondingly installed between the fixing ring 1 and the activity ring 3. The shielding sheets 2 are in contact with each other and leave a central hole 203 at the enclosed center. The shielding sheet 2 is composed of a titanium alloy base material coated with a silicon nitride ceramic layer. The titanium alloy provides high-strength support, and the silicon nitride ceramic layer has a high reflectivity and low thermal conductivity, effectively blocking the laser and reducing heat conduction. A positioning hole 201 with the same diameter as the limit post 104 is opened on the shielding sheet 2. The shielding sheet 2 can slide along the track of the arc-shaped groove 103 through the limit post 104, and a convex key 202 is installed on the upper surface of the shielding sheet 2 inside the positioning hole 201.

[0033] A number of radially distributed straight grooves 301 are opened on the lower surface of the activity ring 3, and the straight grooves 301 and the extending direction of the arc-shaped groove 103 of the fixing ring 1 form a complementary angle. The straight groove 301 and the convex key 202 of the shielding sheet 2 form a sliding fit. When the activity ring 3 rotates relative to the fixing ring 1, the cooperation between the straight groove 301 and the convex key 202 forces the shielding sheet 2 to slide along the arc-shaped groove 103. Since the radial directions of the arc-shaped groove 103 and the straight groove 301 are opposite, the shielding sheet 2 synchronously translates towards or away from the center of the circle, thereby realizing continuous adjustment of the aperture of the central hole 203.

[0034] Hinge shaft seats 101 and threaded hole seats 102 are symmetrically installed at the bottom of the fixing ring 1 with respect to the center of the circle. A split clamping ring 4 is hinged through the hinge shaft seats 101 and the threaded hole seats 102. The split clamping ring 4 includes a left clamping ring 401 and a right clamping ring 402. The hinge between the threaded hole seat 102 and the split clamping ring 4 uses an adjusting bolt 8 as a hinge shaft, and the opening and closing tightness of the split clamping ring 4 can be adjusted. A swinging sleeve 5 is installed on the lower surface of the split clamping ring 4 through a number of bearing seats 403, and a fixed suction cup 501 is sleeved inside the lower end of each swinging sleeve 5. The swinging sleeve 5 and the split clamping ring 4 are connected by a positioning tension spring 404 to limit the swinging range of the swinging sleeve 5; a spring 502 is installed inside the swinging sleeve 5. One end of the spring 502 is connected to the swinging sleeve 5, and the other end is connected to the fixed suction cup 501, so that the fixed suction cup 501 automatically resets after being pressed.

[0035] Below the fixed suction cup 501, a circular silicone sticker 7 is jointly adsorbed. The diameter of the circular silicone sticker 7 is the same as that of the split clamp ring 4. The circular silicone sticker 7 is made of medical-grade silicone material, which has excellent biocompatibility and breathability. The lower surface of the silicone sticker is covered with a release paper. After being torn off, it can be directly attached to the skin to avoid glue residue. And the fixing stability is enhanced through the adsorption force enhancing device of the fixed suction cup 501. A clamping hole 204 is opened on the lower surface of the shielding piece 2 near the central hole 203. A gel column 602 is clamped in the clamping hole 204, and the lower end of the gel column 602 is connected to a gel patch 6. The gel patch 6 is soft and deformable. The gel patch 6 is made of a phase change material (PCM). During laser treatment, it absorbs heat and maintains a constant temperature, further reducing the risk of thermal damage. Its edge contacts the inner edge of the circular silicone sticker 7, and a hole with the same diameter as the central hole 203 is left at the center. The gel patch 6 is divided into sectors corresponding to the shielding piece 2 by a number of dividing grooves 601. When the shielding piece 2 moves, it drives the gel column 602 to pull the gel patch 6, so that its aperture changes synchronously with the central hole 203, ensuring that the protection range is consistent with the treatment area.

[0036] Arc-shaped holding blocks 302 are symmetrically installed on the upper surface of the movable ring 3 for easy rotation adjustment. Corresponding to the holding blocks 302, rubber columns 105 are vertically installed on the fixed ring 1. The rubber columns 105 contact the side surfaces of the holding blocks 302, and prevent the movable ring 3 from moving accidentally through friction.

[0037] When using this device, first tear off the release paper of the circular silicone sticker 7, attach it to the skin around the scar, install the gel patch 6, align the hole of the gel patch 6 with the central hole 203, and dock the gel column 602 with the clamping hole 204 to ensure that the gel patch 6 is adjusted synchronously with the movement of the shielding piece 2, fits the skin and provides cooling protection. Adjust the opening and closing angle of the split clamp ring 4 to adapt to joints or irregular parts, and adsorb the circular silicone sticker 7 through the fixed suction cup 501 to enhance the fixing effect; then adjust the aperture, rotate the holding block 302 of the movable ring 3, and make the shielding piece 2 slide along the arc-shaped groove 103 through the cooperation of the straight groove 301 and the convex key 202 to adjust the size of the central hole 203 to match the scar area; start laser treatment of the scar, start the laser device, the laser acts on the scar precisely through the central hole 203, the shielding piece 2 blocks the laser from irradiating healthy skin, and the gel patch 6 continuously cools down to reduce the risk of thermal damage; after the treatment is over, gently push the fixed suction cup 501 to release the adsorption, remove the device and replace the circular silicone sticker 7 for the next use.

[0038] The embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, based on the content of this specification, those of ordinary skill in the art can understand that various modifications and changes can be made to these embodiments without departing from the principles and spirits of the present invention.

Claims

1. A skin protection device for scar treatment, characterized in that: Includes retaining ring (1): The fixed ring (1) is a circular ring structure, the inner wall of which is coaxially sleeved with the movable ring (3), the outer edge of the fixed ring (1) is annularly raised to limit the axial displacement of the movable ring (3), a plurality of radially evenly distributed arc grooves (103) are provided in the fixed ring (1), a slidable limiting column (104) is installed in each arc groove (103), a plurality of mutually contacting shielding sheets (2) are arranged between the fixed ring (1) and the movable ring (3), a center hole (203) is reserved at the center of the circle surrounded by the shielding sheets (2), the shielding sheet (2) is provided with a positioning hole (201) matching the diameter of the limiting column (104), the upper surface of the shielding sheet (2) is located inside the positioning hole (201) and a convex key (202) is installed, and the lower surface of the movable ring (3) is provided with a convex key (202). A plurality of radially distributed straight grooves (301) are provided on the surface, and the straight grooves (301) and the arc grooves (103) extend in directions that form a complementary angle, and the straight grooves (301) and the convex keys (202) form a sliding fit, and when the movable ring (3) rotates, the straight grooves (301) and the convex keys (202) are matched to drive the shielding sheet (2) to slide along the track of the arc groove (103), and the rotation of the movable ring (3) drives the straight grooves (301) and the convex keys (202) to slide, thereby causing the limiting column (104) to slide in the arc groove (103) and constrain the movement track of the shielding sheet (2), and because the arc groove (103) and the straight grooves (301) have opposite radial directions, the shielding sheet (2) is synchronously translated toward or away from the center of the circle; A hinged shaft seat (101) and a threaded hole seat (102) are symmetrically installed at the bottom of the fixed ring (1), and a split clamp ring (4) is hingedly connected through the hinged shaft seat (101) and the threaded hole seat (102). A swing sleeve (5) is installed on the lower surface of the split clamp ring (4) through a bearing seat (403). The lower end of the swing sleeve (5) is sleeved with a fixed suction cup (501). An annular silicone patch (7) is provided below the split clamp ring (4) to be adsorbed to the fixed suction cup (501). The lower surface of the annular silicone patch (7) is coated with medical adhesive and covered with release paper.

2. The scar treatment skin protection device according to claim 1, characterized in that: The split clamp ring (4) comprises a left clamp ring (401) and a right clamp ring (402), and the hinge between the threaded hole seat (102) and the split clamp ring (4) uses an adjusting bolt (8) as a hinge axis.

3. The scar treatment skin protection device according to claim 1, characterized in that: The swing sleeve (5) and the split clamp ring (4) are connected via a positioning tension spring (404), the two ends of which are respectively fixed to the outer wall of the swing sleeve (5) and the lower surface of the split clamp ring (4), so as to limit the swing amplitude of the swing sleeve (5) in a stretched state.

4. The scar treatment skin protection device according to claim 1, characterized in that: The shielding sheet (2) is composed of an inner metal layer and an outer ceramic layer, and the ceramic layer completely covers the upper surface and side surfaces of the metal layer.

5. The scar treatment skin protection device according to claim 1, characterized in that: A spring (502) is arranged inside the swing sleeve (5), one end of the spring (502) is connected to the inner wall of the swing sleeve (5), and the other end is connected to the upper end of the fixed suction cup (501).

6. The scar treatment skin protection device according to claim 1, characterized in that: A snap-in hole (204) is provided on the lower surface of the shielding sheet (2) near the central hole (203), and a gel column (602) is snap-into the snap-in hole (204). The lower end of the gel column (602) is connected to the gel patch (6), and when the shielding sheet (2) moves, the gel patch (6) is pulled by the gel column (602) to deform synchronously.

7. The scar treatment skin protection device according to claim 6, characterized in that: The gel patch (6) is divided by the dividing groove (601) into a plurality of sectors corresponding to the shielding sheet (2).

8. The scar treatment skin protection device according to claim 7, characterized in that: An arc-shaped gripping block (302) is symmetrically arranged on the upper surface of the movable ring (3), and the curvature of the gripping block (302) is consistent with the curvature of the outer edge of the fixed ring (1).

9. The scar treatment skin protection device according to claim 8, characterized in that: The fixing ring (1) is provided with a rubber column (105) vertically corresponding to the position of the gripping block (302), and the rubber column (105) contacts the side surface of the gripping block (302) to form a friction limit.

10. The scar treatment skin protection device according to claim 9, characterized in that: The edge of the gel patch (6) contacts the inner edge of the annular silicone patch (7), and a hole having the same diameter as the central hole (203) is provided at the center of the gel patch (6).

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