Wave type roller microneedle

Abstract

The utility model discloses a wave type roller microneedle which comprises a holding handle and a roller head, the roller head is rotatably connected to the end portion of the holding handle, the outer wall of the roller head is fixedly connected with a plurality of sets of needle seats, the adjacent needle seats are arranged in a concave-convex mode, and the outer edge faces of the needle seats are in a wave shape. Side plates are fixedly connected to the outer walls of the two sides of the end of the holding handle, the rolling wheel is located at the front end of the rolling wheel head, multiple sets of grooves are formed in the outer wall of the rolling wheel, sliding grooves are formed in the outer walls of the side plates, and elastic mechanisms for driving the rolling wheel to be tightly attached to the skin are installed in the sliding grooves. The rolling wheel is arranged in front of the rolling wheel head, friction force between the rolling wheel and skin is increased, the rolling wheel head is effectively prevented from slipping, the friction force between the surface of the rolling wheel and the skin is further increased through the grooves, it is guaranteed that the rolling wheel head can stably slide on the surface of the skin, and even pressure application of the needle base is guaranteed. And therefore, the over-stimulation of a certain part is avoided, and the accuracy and the comfort level of treatment are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of microneedle technology, and in particular to a wave-type roller microneedle. Background Technology

[0002] The principle of microneedling is to use many tiny needles on a microneedle to pierce the stratum corneum of the skin, allowing products with various functions such as whitening and wrinkle removal to break through the barrier and penetrate into the subcutaneous tissue. This greatly improves the absorption effect of beauty products, while also stimulating the skin's self-healing ability, promoting skin metabolism, and maintaining skin elasticity and beauty.

[0003] Chinese utility model patent CN221513272U discloses a novel seamless wave-shaped roller microneedle device. The outer edge of the microneedle roller head features a wave-shaped structure design, ensuring that the contact area with the skin during use is limited to the crest of the wave, resulting in a very small contact area and reduced pressure on the skin when the microneedles penetrate. However, in practical use, this device has certain drawbacks. Before using the microneedles, skincare products such as purifying toners are typically applied to the skin. When the roller head slides, insufficient surface friction can cause slippage, potentially leading to skin discomfort or damage. Therefore, this paper proposes a wave-shaped roller microneedle to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wave-shaped roller microneedle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wave-shaped roller microneedle includes a grip handle and a roller head. The roller head is rotatably connected to the end of the grip handle. Multiple sets of needle seats are fixedly connected to the outer wall of the roller head. Adjacent needle seats are arranged with concave and convex shapes, and their outer edges form a wave shape. Side plates are fixedly connected to the outer walls on both sides of the end of the grip handle. Connecting rods are rotatably connected to the outer walls of the side plates. Rollers are rotatably connected between the connecting rods. The rollers are located at the front end of the roller head. Multiple sets of grooves are formed on the outer wall of the rollers. Slide grooves are formed on the outer walls of the side plates. An elastic mechanism that drives the rollers to fit tightly against the skin is installed in the slide grooves.

[0007] Preferably, the elastic mechanism includes a slide rod fixedly connected to the inner wall of the slide groove, a slider slidably connected to the outer wall of the slide rod, the end of the slider slidingly conforming to the bottom surface of the slide groove, and the end of the slider being rotatably connected to a connecting rod.

[0008] Preferably, a spring is sleeved on the outer wall of the slide rod, one end of the spring is fixedly connected to the inner wall of the slide groove, and the other end of the spring is fixedly connected to the outer wall of the slider.

[0009] Preferably, the inner wall of the groove and the outer wall of the slide rod are both arc-shaped, and the groove is located on the surface covering the rotation radius of the connecting rod.

[0010] Preferably, the outer wall of the grip handle is provided with an anti-slip pad, and a through groove is provided in the middle of the grip handle.

[0011] Preferably, the roller radius is half the roller head radius.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model increases the friction between the roller and the skin by placing a roller in front of the roller head, thereby effectively preventing the roller head from slipping. The groove further increases the friction between the roller surface and the skin, ensuring that the roller head can slide smoothly on the skin surface, ensuring uniform pressure on the needle seat, avoiding excessive stimulation of a certain area, and significantly improving the accuracy and comfort of treatment.

[0014] 2. By setting up devices such as springs and slide bars, the pressure of the springs can be adjusted by the pressure applied by holding the handle, so that the roller can always maintain an appropriate contact force during use, which can effectively avoid excessive stimulation and ensure comfort and safety during the treatment process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a wave-type roller microneedle proposed in this utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the connecting rod, rollers and side plates.

[0017] Figure 3 for Figure 2 Sectional view of the middle side panel.

[0018] In the diagram: 1. Handle; 2. Roller head; 3. Side plate; 4. Connecting rod; 5. Roller; 6. Groove; 7. Slide; 8. Slide bar; 9. Spring; 10. Slider. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3A wave-shaped roller microneedle includes a grip handle 1 and a roller head 2. The roller head 2 is rotatably connected to the end of the grip handle 1. Multiple sets of needle seats are fixedly connected to the outer wall of the roller head 2. Adjacent needle seats are arranged with concave and convex shapes, and their outer edges form a wave shape. Side plates 3 are fixedly connected to the outer walls on both sides of the end of the grip handle 1. Connecting rods 4 are rotatably connected to the outer walls of the side plates 3. Rollers 5 are rotatably connected between the connecting rods 4. The roller 5 is located at the front end of the roller head 2. Multiple sets of grooves 6 are opened on the outer wall of the roller 5. A sliding groove 7 is opened on the outer wall of the side plate 3. An elastic mechanism that drives the roller 5 to fit tightly against the skin is installed in the sliding groove 7.

[0021] Specifically, the roller 5 is located at the front end of the roller head 2. The groove 6 on its outer wall can effectively increase the friction between the surface of the roller 5 and the skin, avoiding slippage after applying skin care products. The roller 5 can slide more smoothly on the skin surface, thereby ensuring that the needle seat on the outer wall of the roller head 2 applies even pressure to the skin.

[0022] The elastic mechanism includes a slide rod 8 fixedly connected to the inner wall of the slide groove 7, a slider 10 slidably connected to the outer wall of the slide rod 8, the end of the slider 10 sliding against the bottom surface of the slide groove 7, the end of the slider 10 being rotatably connected to the connecting rod 4, a spring 9 sleeved on the outer wall of the slide rod 8, one end of the spring 9 being fixedly connected to the inner wall of the slide groove 7, and the other end of the spring 9 being fixedly connected to the outer wall of the slider 10, both the inner wall of the slide groove 7 and the outer wall of the slide rod 8 being arc-shaped, the slide groove 7 being located on the surface covering the rotation radius of the connecting rod 4, the outer wall of the grip handle 1 being provided with an anti-slip pad, a through groove being opened through the middle of the grip handle 1, and the radius of the roller 5 being half the radius of the roller head 2;

[0023] Specifically, the continuous pressure provided by spring 9 allows roller 5 to slide stably on the skin, avoiding slippage due to insufficient friction. In this way, the needle hub can act on the skin evenly and effectively, improving the accuracy and comfort of the treatment.

[0024] In this invention, when the device is in use: the wavy outer edge design of the roller head 2 minimizes the contact area between the needle hub and the skin, with contact occurring only at the crest of the wave. This reduces the pressure exerted on the skin when the microneedles are inserted, enhancing comfort. The roller 5, located at the front end of the roller head 2, has grooves 6 on its outer wall that effectively increase the friction between the roller 5 surface and the skin, preventing slippage caused by the application of skincare products during use. This ensures that the roller 5 slides more smoothly on the skin surface, guaranteeing even pressure on the needle hub, avoiding excessive stimulation of any particular area, and improving the treatment effect.

[0025] To ensure that the roller 5 slides, the spring 9 provides continuous pressure, enabling the roller 5 to apply appropriate force stably and preventing slippage due to insufficient friction. The pressure of the spring 9 can be adjusted by applying pressure to the handle 1, so that the roller 5 maintains appropriate contact force when sliding, avoiding discomfort to the skin due to excessive or insufficient pressure.

[0026] This device utilizes a variety of innovative methods, such as the friction between the roller 5 and the skin, the adaptive design of the elastic mechanism, and the pressure distribution of the wave-shaped needle seat, to ensure the smooth sliding and uniform pressure of the roller head 2 during microneedling treatment. This avoids discomfort caused by slippage or uneven pressure, while also improving the skin care effect.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wave-shaped roller microneedle, comprising a grip handle (1) and a roller head (2), characterized in that, The roller head (2) is rotatably connected to the end of the grip handle (1). Multiple sets of needle seats are fixedly connected to the outer wall of the roller head (2). The adjacent needle seats are arranged with concave and convex shapes, and their outer edges form a wave shape. Side plates (3) are fixedly connected to the outer walls on both sides of the end of the grip handle (1). Connecting rods (4) are rotatably connected to the outer walls of the side plates (3). Rollers (5) are rotatably connected between the connecting rods (4). The rollers (5) are located at the front end of the roller head (2). Multiple sets of grooves (6) are opened on the outer wall of the rollers (5). Slide grooves (7) are opened on the outer wall of the side plates (3). An elastic mechanism that drives the rollers (5) to fit tightly against the skin is installed in the slide grooves (7).

2. The wave-shaped roller microneedle according to claim 1, characterized in that, The elastic mechanism includes a slide rod (8) fixedly connected to the inner wall of the slide groove (7), a slider (10) slidably connected to the outer wall of the slide rod (8), the end of the slider (10) sliding against the bottom surface of the slide groove (7), and the end of the slider (10) rotatably connected to the connecting rod (4).

3. The wave-shaped roller microneedle according to claim 2, characterized in that, A spring (9) is fitted on the outer wall of the slide rod (8). One end of the spring (9) is fixedly connected to the inner wall of the slide groove (7), and the other end of the spring (9) is fixedly connected to the outer wall of the slider (10).

4. The wave-shaped roller microneedle according to claim 3, characterized in that, The inner wall of the slide groove (7) and the outer wall of the slide rod (8) are both arc-shaped, and the slide groove (7) is located on the surface covering the rotation radius of the connecting rod (4).

5. A wave-shaped roller microneedle according to claim 4, characterized in that, The outer wall of the grip handle (1) is provided with an anti-slip pad, and a through groove is provided in the middle of the grip handle (1).

6. A wave-shaped roller microneedle according to claim 5, characterized in that, The radius of the roller (5) is half the radius of the roller head (2).

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