Medical roller needle
By designing a convenient replacement mechanism, the problem of inconvenient replacement of existing medical rollers has been solved, enabling quick disassembly and installation of the rollers and improving the efficiency and effectiveness of cosmetic treatments.
Patent Information
- Application Number
- CN202520223203.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-12
AI Technical Summary
The existing medical needle rollers are fixedly connected to the main body of the device, making it inconvenient to replace them, especially when they are damaged or when it is necessary to replace them with needle rollers of different specifications.
A replacement mechanism consisting of a stabilizing groove, a stabilizing column, a sliding plate, and a roller was designed. By pressing the stabilizing column, the sliding plate and the limiting plate are moved to slide, which enables convenient disassembly and installation of the roller. The spring provides stable support and guidance.
It enables quick roller replacement, improves maintenance efficiency and service life, and ensures that the roller needles glide evenly across the skin surface, enhancing the effect of cosmetic treatments.
Smart Images

Figure CN223716203U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cosmetic instrument technical field especially, relates to a medical needle roller. BACKGROUND
[0002] Cosmetic instrument refers to various instruments and equipment for cosmetic purposes, which can help people improve skin condition, shape body contour and many other aspects, and cosmetic instruments are divided into cleaning type cosmetic instruments, massage type cosmetic instruments, cosmetic introduction type instruments and light therapy type cosmetic instruments according to functions, and in the field of cosmetic medical treatment, needle roller devices are widely used in skin cosmetic treatment, such as promoting skin collagen production and improving skin texture, therefore, a medical needle roller is particularly needed.
[0003] However, the existing medical needle roller is usually fixedly connected with the device main body, when the needle roller is damaged, worn or needs to be replaced with different specifications according to different treatment requirements, the operation is extremely inconvenient. UTILITY MODEL CONTENTS
[0004] The utility model discloses a medical needle roller, to solve the existing medical needle roller in the background art mentioned above, the needle roller is usually fixedly connected with the device main body, when the needle roller is damaged, worn or needs to be replaced with different specifications according to different treatment requirements, the operation is extremely inconvenient.
[0005] To achieve the above object, the utility model provides the following technical scheme: a medical needle roller, including handle, the surface of one end of handle is fixedly connected with support plate, the surface of one side of support plate is provided with replacement mechanism;
[0006] The replacement mechanism includes stabilizing groove, stabilizing column, sliding plate, roller, sliding groove, limiting groove, needle roller ring, needle body, limit plate, fixed plate, limit groove, fixed groove, spring, connecting column, moving block, fixed column and moving groove, the inner side surface of support plate is equipped with stabilizing groove, the inner side surface of stabilizing groove is connected with stabilizing column slidingly, the surface of one end of stabilizing column is fixedly connected with sliding plate, the outer side surface of sliding plate is connected with roller slidingly, the inner side surface of roller is equipped with sliding groove, the outer side surface of roller is equipped with limiting groove, the inner side surface of limiting groove is fixedly connected with needle roller ring, the outer side surface of needle roller ring is fixedly connected with needle body, the surface of one side of sliding plate is fixedly connected with limit plate, the surface of one side of limit plate is fixedly connected with fixed plate, the inner side surface of sliding groove is equipped with limit groove, the inner side surface of limit groove is equipped with fixed groove, the surface of one end of sliding plate is fixedly connected with spring, the surface of one end of sliding plate is fixedly connected with connecting column, the surface of one end of connecting column is fixedly connected with moving block, the outer side surface of moving block is connected with fixed column slidingly, the inner side surface of fixed column is equipped with moving groove.
[0007] Preferably, the upper surface of the handle is provided with anti-skid lines, and the support plate is provided with two groups of the stable columns on the end surface of the handle.
[0008] Preferably, the inner side size of the stable groove is consistent with the outer side size of the stable column, and the stable column is provided with two groups of the stable columns on the two ends of the roller.
[0009] Preferably, the inner side size of the sliding groove is consistent with the outer side size of the sliding plate, and the inner side size of the limiting groove is consistent with the outer side size of the roller ring.
[0010] Preferably, the needle bodies are provided with multiple groups on the outer side surface of the roller ring at equal intervals, and the fixed plate is provided with two groups of the limiting plates in the axis symmetry.
[0011] Preferably, the limiting plate is provided with two groups of the limiting plates in the axis symmetry of the sliding plate, and the stable column forms the telescopic structure through the sliding plate and the spring.
[0012] Preferably, the fixed column is fixedly connected with the sliding groove, and the inner side size of the moving groove is consistent with the outer side size of the fixed column.
[0013] Compared with the prior art, the medical roller needle has the beneficial effects that: through the setting of the replacement mechanism, when the roller needs to be replaced, the stable column is pressed, the stable column drives the sliding plate to move to the deep part of the stable groove against the elastic force of the spring, the limiting plate slides in the limiting groove, the fixed plate slides in the fixed groove, at this time, the moving block at one end of the connecting column slides in the moving groove of the fixed column, then the old roller is pulled out along the stable column, and the dismounting of the roller is completed; when the new roller needs to be installed, the stable column is pressed, the stable column drives the sliding plate to move to the deep part of the sliding groove against the elastic force of the spring, then the roller is moved along the support plate to the appropriate position, when the roller is stable, the stable column is pushed into the stable groove by the spring, so that the roller is stably installed on the support plate, and the replacement operation of the roller is completed; when the roller is rolled, the stable column rotates in the stable groove, the needle bodies on the surface of the roller ring evenly draw on the skin surface along with the rotation of the roller, the stratum corneum of the skin is pierced, and a small wound channel is formed, the replacement operation of the roller is more simple and convenient, the replacement time is shortened, and the maintenance efficiency and service life are improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a side appearance structure schematic view of the utility model;
[0015] Figure 2 It is a replacement mechanism structure schematic view of the utility model;
[0016] Figure 3 It is a replacement mechanism sectional structure schematic view of the utility model;
[0017] Figure 4 The figure is a schematic diagram of the mutual cooperation structure of the limiting groove and the fixing groove.
[0018] In the figure: 1, handle; 2, support plate; 3, replacement mechanism; 301, stabilizing groove; 302, stabilizing column; 303, sliding plate; 304, roller; 305, sliding groove; 306, limiting groove; 307, roller ring; 308, needle body; 309, limiting plate; 310, fixed plate; 311, limiting groove; 312, fixing groove; 313, spring; 314, connecting column; 315, moving block; 316, fixed column; 317, moving groove. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0020] Please refer to Figures 1-4 The present application provides a technical solution: a medical roller needle, comprising a handle 1, one end surface of the handle 1 is fixedly connected with a support plate 2, one side surface of the support plate 2 is provided with a replacement mechanism 3;
[0021] The replacement mechanism 3 comprises a stabilizing groove 301, a stabilizing column 302, a sliding plate 303, a roller 304, a sliding groove 305, a limiting groove 306, a needle ring 307, a needle body 308, a limiting plate 309, a fixed plate 310, a limiting groove 311, a fixed groove 312, a spring 313, a connecting column 314, a moving block 315, a fixed column 316 and a moving groove 317. The inner side surface of the support plate 2 is provided with the stabilizing groove 301. The inner side surface of the stabilizing groove 301 is slidably connected with the stabilizing column 302. One end surface of the stabilizing column 302 is fixedly connected with the sliding plate 303. The outer side surface of the sliding plate 303 is slidably connected with the roller 304. The inner side surface of the roller 304 is provided with the sliding groove 305. The outer side surface of the roller 304 is provided with the limiting groove 306. The inner side surface of the limiting groove 306 is fixedly connected with the needle ring 307. The outer side surface of the needle ring 307 is fixedly connected with the needle body 308. One side surface of the sliding plate 303 is fixedly connected with the limiting plate 309. One side surface of the limiting plate 309 is fixedly connected with the fixed plate 310. The inner side surface of the sliding groove 305 is provided with the limiting groove 311. The inner side surface of the limiting groove 311 is provided with the fixed groove 312. One end surface of the sliding plate 303 is fixedly connected with the spring 313. One end surface of the sliding plate 303 is fixedly connected with the connecting column 314. One end surface of the connecting column 314 is fixedly connected with the moving block 315. The outer side surface of the moving block 315 is slidably connected with the fixed column 316. The inner side surface of the fixed column 316 is provided with the moving groove 317. Through the arrangement of the stabilizing groove 301, the stabilizing column 302, the sliding plate 303, the roller 304, the sliding groove 305, the limiting groove 306, the needle ring 307, the needle body 308, the limiting plate 309, the fixed plate 310, the limiting groove 311, the fixed groove 312, the spring 313, the connecting column 314, the moving block 315, the fixed column 316 and the moving groove 317, when the roller 304 needs to be replaced, the stabilizing column 302 is pressed, the stabilizing column 302 drives the sliding plate 303 to move to the deep part of the stabilizing groove 301 against the elastic force of the spring 313, the limiting plate 309 slides in the limiting groove 311, the fixed plate 310 slides in the fixed groove 312, the moving block 315 at one end of the connecting column 314 slides in the moving groove 317 of the fixed column 316, then the old roller 304 is pulled out along the stabilizing column 302, and the roller 304 is disassembled. When a new roller 304 needs to be installed, the stabilizing column 302 is pressed, the stabilizing column 302 drives the sliding plate 303 to move to the deep part of the sliding groove 305 against the elastic force of the spring 313, then the roller 304 is moved along the support plate 2, when reaching the appropriate position, the stabilizing column 302 is pushed into the stabilizing groove 301 by the spring 313, so that the roller 304 is stably installed on the support plate 2, and the replacement operation of the roller 304 is completed. When the roller 304 rotates, the needle body 308 on the surface of the needle ring 307 rotates with the roller 304 and uniformly draws across the skin surface, pierces the stratum corneum of the skin, and forms a micro-wound channel.
[0022] Further, the upper surface of the handle 1 is provided with anti-skid lines, and the support plate 2 is provided with two groups of anti-skid lines on one end surface of the handle 1. Through the arrangement of the handle 1, the anti-skid lines on the upper surface of the handle 1 effectively increase the friction between the hand and the handle 1 during use, so that the stability and safety of operation are improved.
[0023] Further, the inner side of the stabilizing groove 301 is matched with the outer side of the stabilizing column 302, and the stabilizing column 302 is provided with two groups at both ends of the roller 304. Through the arrangement of the stabilizing column 302, the two groups of stabilizing columns 302 can provide uniform and stable support force during use, avoiding tilting or imbalance caused by single-point support, so that the roller 304 is more stable during rolling.
[0024] Further, the inner side of the sliding groove 305 is matched with the outer side of the sliding plate 303, and the inner side of the limiting groove 306 is matched with the outer side of the roller ring 307. Through the arrangement of the sliding groove 305 and the sliding plate 303, the sliding plate 303 slides smoothly in the sliding groove 305 of the roller 304 during use, without shaking due to excessive gap, so that the disassembly and installation of the roller 304 are more stable and reliable.
[0025] Further, the needle body 308 is provided with multiple groups at equal intervals on the outer surface of the roller ring 307, and the fixed plate 310 is provided with two groups symmetrically with the center axis of the limiting plate 309. Through the arrangement of the needle body 308, the equally spaced needle bodies 308 can exert uniform pressure and stimulation on the skin when the roller acts on the skin, so that the comprehensiveness and effectiveness of cosmetic treatment are improved.
[0026] Further, the limiting plate 309 is provided with two groups symmetrically with the center axis of the sliding plate 303, and the stabilizing column 302 constitutes a telescopic structure through the sliding plate 303 and the spring 313. Through the arrangement of the limiting plate 309, the two groups of limiting plates 309 limit the sliding plate 303 during use, so that the sliding plate 303 is more stable and balanced during sliding.
[0027] Further, the fixed column 316 is fixedly connected with the sliding groove 305, and the inner side of the moving groove 317 is matched with the outer side of the fixed column 316. Through the arrangement of the moving groove 317 and the fixed column 316, the moving groove 317 limits the fixed column 316 during use, and the fixed column 316 is fixedly connected with the connecting column 314, thereby guiding and limiting the movement of the connecting column 314, so that the connecting column 314 can move stably.
[0028] Working principle: when the roller 304 needs to be replaced, press the stabilizing column 302, the stabilizing column 302 drives the sliding plate 303 to move to the deep part of the stabilizing groove 301 against the elastic force of the spring 313, the limiting plate 309 slides in the limiting groove 311, the fixed plate 310 slides in the fixed groove 312, at this time, the moving block 315 at one end of the connecting column 314 slides in the moving groove 317 of the fixed column 316, then pull out the old roller 304 along the stabilizing column 302, the disassembly of the roller 304 is completed, when the new roller 304 needs to be installed, press the stabilizing column 302, the stabilizing column 302 drives the sliding plate 303 to move to the deep part of the sliding groove 305 against the elastic force of the spring 313, then move the roller 304 along the support plate 2, when reaching the appropriate position, the stabilizing column 302 is pushed into the stabilizing groove 301 by the spring 313, so that the roller 304 is stably installed on the support plate 2, the replacement operation of the roller 304 is completed, when the roller 304 rotates, the stabilizing column 302 rotates in the stabilizing groove 301, the needle body 308 on the surface of the roller ring 307 rotates uniformly across the skin surface, pierces the cutin layer of the skin, and forms a micro wound channel.
[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A medical roller needle, comprising a handle (1), characterized in that: A support plate (2) is fixedly connected to one end surface of the handle (1), and a replacement mechanism (3) is provided on one side surface of the support plate (2); The replacement mechanism (3) includes a stabilizing groove (301), a stabilizing column (302), a sliding plate (303), a roller (304), a sliding groove (305), a limiting groove (306), a needle ring (307), a needle body (308), a limiting plate (309), a fixing plate (310), a limiting groove (311), a fixing groove (312), a spring (313), a connecting column (314), a moving block (315), a fixing column (316), and a moving groove (317). 7) A stabilizing groove (301) is provided on the inner surface of the support plate (2). A stabilizing column (302) is slidably connected to the inner surface of the stabilizing groove (301). A sliding plate (303) is fixedly connected to one end surface of the stabilizing column (302). A roller (304) is slidably connected to the outer surface of the sliding plate (303). A sliding groove (305) is provided on the inner surface of the roller (304). A limiting groove is provided on the outer surface of the roller (304). The groove (306) has a needle roller ring (307) fixedly connected to its inner surface, a needle body (308) fixedly connected to its outer surface, a limiting plate (309) fixedly connected to one side surface of the sliding plate (303), a fixing plate (310) fixedly connected to one side surface of the limiting plate (309), and a limiting groove (311) formed on the inner surface of the sliding groove (305). A fixing groove (312) is provided on the inner surface of the sliding plate (303). A spring (313) is fixedly connected to one end surface of the sliding plate (303). A connecting post (314) is fixedly connected to one end surface of the sliding plate (303). A moving block (315) is fixedly connected to one end surface of the connecting post (314). A fixing post (316) is slidably connected to the outer surface of the moving block (315). A moving groove (317) is provided on the inner surface of the fixing post (316).
2. The medical roller needle according to claim 1, characterized in that: The upper surface of the handle (1) is provided with anti-slip texture, and the support plate (2) is provided with two sets of support plates on one end surface of the handle (1).
3. The medical roller needle according to claim 1, characterized in that: The inner dimensions of the stabilizing groove (301) match the outer dimensions of the stabilizing column (302), and two sets of the stabilizing column (302) are provided at both ends of the roller (304).
4. A medical roller needle according to claim 1, characterized in that: The inner dimension of the sliding groove (305) matches the outer dimension of the sliding plate (303), and the inner dimension of the limiting groove (306) matches the outer dimension of the needle roller ring (307).
5. A medical roller needle according to claim 1, characterized in that: The needle body (308) is arranged in multiple sets at equal intervals on the outer surface of the needle roller ring (307), and the fixing plate (310) is arranged in two sets symmetrically with respect to the central axis of the limiting plate (309).
6. A medical roller needle according to claim 1, characterized in that: The limiting plate (309) is symmetrically arranged in two sets around the central axis of the sliding plate (303), and the stabilizing column (302) forms a telescopic structure through the sliding plate (303) and the spring (313).
7. A medical roller needle according to claim 1, characterized in that: The fixed column (316) is fixedly connected to the sliding groove (305), and the inner dimension of the moving groove (317) matches the outer dimension of the fixed column (316).