An adjustable-caliber areola skin cutter

Abstract

This utility model provides an areola skin cutter with adjustable diameter, comprising: multiple blades; multiple fixing components, which are combined to form a closed-loop annular structure, and the fixing components are fixedly connected to the multiple blades one by one; multiple adjustment modules, which are respectively connected to the multiple fixing components one by one; a control ring, which is drivenly connected to each adjustment module; and an outer fixing ring, which is used to axially limit the control ring and / or adjustment modules so that the control ring and / or adjustment modules can only rotate. Using the areola skin cutter of this application, the size can be continuously adjusted according to the cutting needs of the skin. Compared with the prior art, which can only cut according to a predetermined size, this application has a wider range of applications, and it does not obstruct the nipple area, making it easier for doctors to position the cutting site.

Description

Technical Field

[0001] This utility model relates to the field of skin cutting equipment technology, and more specifically, it relates to an areola skin cutter with adjustable diameter. Background Technology

[0002] The breast is a major organ of the female body and aesthetics. Its size, shape, and proportions are considered important aesthetic parameters, significantly influencing its overall appearance. Even when these parameters are fixed, changes in the position and size of the nipple and areola can drastically alter the overall appearance of the breast. In breast augmentation surgeries such as breast lifts, breast reductions, and areola reductions, it is necessary to readjust the size and shape of the areola. Current surgical techniques typically involve making a double-ring incision along the edge of the areola to adjust its size.

[0003] Most surgeons use a soft ruler or a fixed-diameter circle to draw the ring-shaped areola line before removing it. This traditional method makes it difficult to guarantee the regularity of the shape, the accuracy of the position, and the smoothness and neatness of the surgical incision, which affects the treatment and cosmetic results.

[0004] Chinese utility model patent (application number: 202021084671.8) discloses an adjustable areola shaping ring, comprising multiple shaping rings with different diameters, which are nested sequentially from smallest to largest, and adjacent shaping rings are connected to each other by a flexible material, allowing the smaller shaping ring to move below the larger shaping ring. Each shaping ring also has an arc-shaped surgical blade at its lower end corresponding to its curvature, and the upper end of the arc-shaped surgical blade has an annular groove for embedding the corresponding shaping ring. The arc-shaped surgical blade and its corresponding shaping ring are detachably connected. The shaping ring disclosed in this application has a fixed diameter and cannot be continuously adjusted. It can only be used to cut the skin using two shaping rings, making it unsuitable for all situations. Furthermore, after being placed on the breast, the shaping ring will cover the nipple position, affecting the accurate positioning of the nipple. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an areola skin cutter with adjustable diameter, so as to overcome the disadvantages of existing areola skin cutters that cannot achieve stepless adjustment and are difficult to accurately position.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an areola skin cutter with adjustable diameter, comprising: multiple blades for cutting skin; multiple fixing components for fixing the blades, wherein the multiple fixing components are combined to form a closed-loop annular structure, and the multiple fixing components are fixedly connected to the multiple blades in a one-to-one correspondence; multiple adjustment modules for continuously adjusting the radial position of the fixing components, and the multiple adjustment modules are respectively connected to the multiple fixing components in a one-to-one correspondence; a control ring for simultaneously controlling all the adjustment modules to adjust the size of the annular structure formed by the fixing components, and the control ring is respectively connected to each of the adjustment modules in a transmission connection; and an outer fixing ring for at least axially limiting the control ring and / or the adjustment modules so that the control ring and / or the adjustment modules can only rotate.

[0007] In one embodiment, a plurality of the adjustment modules are radially and evenly distributed on the outer fixing ring, and the plurality of adjustment modules are distributed along the radial direction of the outer fixing ring.

[0008] In one embodiment, the adjustment module includes a rotating unit and a telescopic unit; the rotating unit is rotatably connected to the outer fixed ring and is also drive-connected to the control ring to rotate under the drive of the control ring; the telescopic unit is drive-connected to the rotating unit and is used to convert the rotational motion of the rotating unit into linear motion to drive the fixed component to move radially.

[0009] In one embodiment, the rotating unit includes a threaded sleeve rotatably connected to the outer fixed ring; a bevel gear is provided on the outside of the threaded sleeve; a toothed ring is provided on the control ring, and the toothed ring meshes with the bevel gear, so that when the control ring rotates, the threaded sleeve can be driven to rotate through the bevel gear.

[0010] In one embodiment, the telescopic unit includes an adjusting screw, the first end of which is housed inside the threaded sleeve and meshes with the threaded sleeve; the second end of which is fixedly connected to the fixing assembly; at least one guide keyway is also provided on the side wall of the adjusting screw, the guide keyway extending along the axial direction of the adjusting screw; a limit block is provided on the outer fixing ring, the limit block and the guide keyway cooperating to form a sliding pair, so that the adjusting screw can only perform linear motion.

[0011] In one embodiment, the outer fixing ring has a circular through hole, and the adjusting screw passes through the interior of the through hole; four limiting blocks are provided on the inner sidewall of the through hole; the four limiting blocks are evenly distributed circumferentially on the inner sidewall of the through hole; the adjusting screw has four guide keyways, and the four limiting blocks are correspondingly accommodated in the interior of the four guide keyways.

[0012] In one embodiment, the control ring and the outer fixing ring are coaxially arranged.

[0013] In one embodiment, the outer fixing ring has an arc-shaped groove; the arc-shaped groove is coaxially arranged with the outer fixing ring; the control ring is provided with an adjustment handle, which passes through the arc-shaped groove and extends to the outside of the outer fixing ring.

[0014] In one embodiment, the fixing component includes: a positioning arc plate and a telescopic arc plate; the positioning arc plate is fixedly connected to the adjustment module; the first edge of the positioning arc plate is fixedly connected to the blade; the first edge of the telescopic arc plate is movably connected to the second edge of the positioning arc plate, and the second edge of the telescopic arc plate is movably connected to the third edge of an adjacent positioning arc plate; a plurality of positioning arc plates and a plurality of telescopic arc plates are sequentially and alternately connected to form a ring.

[0015] In one embodiment, an elastic rubber ring is also included; the positioning arc plate, the telescopic arc plate, and the blade are made of an elastic metal material; the elastic rubber ring is sleeved on the outer side of the combination of the plurality of positioning arc plates and the plurality of telescopic arc plates to adjust the curvature of each positioning arc plate.

[0016] In summary, this utility model has the following beneficial effects: an areola skin cutter with adjustable diameter includes: multiple blades for cutting skin; multiple fixing components for fixing the blades, the multiple fixing components being combined to form a closed-loop annular structure, the multiple fixing components being fixedly connected to the multiple blades one-to-one; multiple adjustment modules for adjusting the radial position of the fixing components, the multiple adjustment modules being connected to the multiple fixing components one-to-one; a control ring for simultaneously controlling all the adjustment modules to adjust the size of the annular structure formed by the fixing components, the control ring being drivenly connected to each of the adjustment modules; and an outer fixing ring for at least axially limiting the control ring and / or the adjustment modules so that the control ring and / or the adjustment modules can only rotate. Using the areola skin cutter of this application, continuous size adjustment can be made according to the cutting needs of the skin. Compared with the prior art, which can only cut according to a predetermined size, this application has a wider range of applications, and it does not obstruct the nipple area, making it easier for doctors to position the cutting site. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the present invention with the first type of blade installed;

[0018] Figure 2 A three-dimensional structural diagram of the present invention with the second type of blade installed;

[0019] Figure 3 This is a three-dimensional schematic diagram of the internal structure of this utility model;

[0020] Figure 4 This is a perspective view of the outer fixing ring of this utility model;

[0021] Figure 5 For the present utility model Figure 4 Enlarged view of part A in the image;

[0022] Figure 6 This is a schematic diagram of the control loop and adjustment module combination of this utility model;

[0023] Figure 7 This is a schematic diagram of the combination of the adjustment module and the fixing component of this utility model;

[0024] Figure 8 This is a three-dimensional schematic diagram of the adjustment module of this utility model.

[0025] In the diagram: 1. Blade; 2. Fixing assembly; 21. Positioning arc plate; 22. Telescopic arc plate; 3. Adjustment module; 31. Rotation unit; 311. Screw sleeve; 312. Bevel gear; 313. Rotary bearing; 32. Telescopic unit; 321. Adjusting screw; 322. Guide keyway; 4. Control ring; 41. Adjusting handle; 411. Fixing post; 412. Positioning cap; 42. Gear ring; 5. Outer fixing ring; 51. Through hole; 52. Limiting block; 53. Arc groove. Detailed Implementation

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0027] In this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0028] 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.

[0029] Example 1

[0030] To address the aforementioned problems, this invention provides an areola skin cutter with an adjustable aperture, such as... Figures 1-8 As shown, it includes: multiple blades 1 for cutting skin; multiple fixing components 2 for fixing the blades 1, the multiple fixing components 2 are combined to form a closed-loop ring structure, and the multiple fixing components 2 are fixedly connected to the multiple blades 1 in a one-to-one correspondence; multiple adjustment modules 3 for continuously adjusting the radial position of the fixing components 2, the multiple adjustment modules 3 are respectively connected to the multiple fixing components 2 in a one-to-one correspondence; a control ring 4 for simultaneously controlling all the adjustment modules 3 to adjust the size of the ring formed by the fixing components 2, the control ring 4 is respectively connected to each adjustment module 3 in a transmission connection; and an outer fixing ring 5 for at least axially limiting the control ring 4 and / or the adjustment modules 3 so that the control ring 4 and / or the adjustment modules 3 can only rotate.

[0031] In practical applications, the fixing components 2 are used to combine with each other to form a closed-loop annular structure. Each fixing component 2 is fixedly equipped with a blade 1. The adjustment module 3 is used to adjust the radial position of the fixing components 2, thereby adjusting the radius of the annular array formed by the fixing components 2. Since the adjustment modules 3 are arranged in a ring, a control ring 4 is also required to simultaneously control the movement of all blades 1. The control ring 4 can be connected to all adjustment modules 3 simultaneously. When the control ring 4 rotates, it can drive all adjustment modules 3 to adjust the radius of the annular blade 1. The outer fixing ring 5 is used to provide positioning and protection for all components. The outer fixing ring 5 is a hollow ring, and the control ring 4 and part of the adjustment module 3 are housed in the outer fixing ring 5. When cutting the skin for surgery, the cutter of this application is placed on the breast, with the nipple passing through the through hole 51 in the middle of the outer fixing ring 5 for auxiliary positioning, keeping the nipple in the center of the annular structure, thus ensuring that the areola cutting can achieve concentric cutting around the nipple. After fixing the outer fixing ring 5, the diameter of the circle formed by the blades 1 can be adjusted accordingly by adjusting the control ring 4. The areola skin cutter of this application can be continuously adjusted in size according to the cutting needs of the skin. Compared with the prior art, which can only cut according to a predetermined size, this application has a wider range of applications. In addition, this application will not obstruct the nipple area, making it easier for doctors to locate the cutting site.

[0032] In one embodiment, multiple adjustment modules 3 are radially and evenly distributed on the outer fixing ring 5, and the multiple adjustment modules 3 are all distributed along the radial direction of the outer fixing ring 5.

[0033] In practical applications, in order to ensure that the ring formed by the blades 1 is more rounded and to avoid the skin being cut into polygons due to the invariable curvature of the blades 1, it is first necessary to make the distribution of the blades 1 uniform. Secondly, in order to enable the blades 1 to adjust the radius of the ring with the finest precision, the adjustment modules 3 are all set along the radial direction of the ring, and the adjustment modules 3 can be perpendicular to the setting direction of the blades 1 to drive the blades 1 to move.

[0034] In one embodiment, the adjustment module 3 includes a rotating unit 31 and a telescopic unit 32; the rotating unit 31 is rotatably connected to the outer fixed ring 5, and the rotating unit 31 is also drive-connected to the control ring 4 so as to rotate under the drive of the control ring 4; the telescopic unit 32 is drive-connected to the rotating unit 31 and is used to convert the rotational motion of the rotating unit 31 into linear motion so as to drive the fixed component 2 to move radially.

[0035] In practical applications, the rotating unit 31 is located inside the outer fixed ring 5 and is interconnected with the control ring 4. The control ring 4 can only rotate coaxially around the outer fixed ring 5 from within the outer fixed ring 5. When the control ring 4 rotates, it also drives all the rotating units 31 to rotate around their own axes. The telescopic unit 32 is interconnected with the rotating unit 31 and can convert the rotation of the rotating unit 31 into linear motion. The linear motion of the telescopic unit 32 can drive the blade 1 to move linearly to adjust the inner diameter of the ring formed by the blade 1. Through this structure, the rotational motion of the control ring 4 can be synchronously converted into the linear motion of all the telescopic units 32, ensuring that all the blades 1 can be adjusted synchronously and that the ring formed by the blades 1 is closer to a circular shape.

[0036] In one embodiment, the rotating unit 31 includes a screw sleeve 311, which is rotatably connected to the outer fixing ring 5; a bevel gear 312 is provided on the outside of the screw sleeve 311; a toothed ring 42 is provided on the control ring 4, which meshes with the bevel gear 312, so that when the control ring 4 rotates, the screw sleeve 311 can be driven to rotate through the bevel gear 312.

[0037] In practical applications, the bevel gear 312 has a small meshing angle, resulting in lower energy loss compared to spur gear transmission. This allows for efficient transmission of the rotational power of the control ring 4 to the threaded sleeve 311. The curved meshing characteristics of the bevel gear 312 maintain continuous contact, preventing impact vibration and ensuring smooth and reliable transmission between the control ring 4 and the threaded sleeve 311. Figure 8 As shown; to ensure the smooth rotation of the threaded sleeve 311, rotary bearings 313 can be installed at both ends of the threaded sleeve 311 to prevent the threaded sleeve 311 from affecting the final cutting accuracy due to difficulty in smooth rotation. The transmission teeth on the gear ring are also made with an inclined structure to cooperate with the bevel gear to achieve transmission.

[0038] In one embodiment, the telescopic unit 32 includes an adjusting screw 321. The first end of the adjusting screw 321 is housed inside the screw sleeve 311 and is engaged with the screw sleeve 311. The second end of the adjusting screw 321 is fixedly connected to the fixing assembly 2. At least one guide keyway 322 is also provided on the side wall of the adjusting screw 321, and the guide keyway 322 extends along the axial direction of the adjusting screw 321. A limiting block 52 is provided on the outer fixing ring 5. The limiting block 52 and the guide keyway 322 cooperate with each other to form a sliding pair, so that the adjusting screw 321 can only perform linear motion.

[0039] In practical applications, the meshing connection between the adjusting screw 321 and the screw sleeve 311 converts the rotational motion of the screw sleeve 311 into the pure linear motion of the screw through thread transmission. Combined with the precise design of the screw pitch, precise displacement adjustment can be achieved, which is suitable for high-precision positioning scenarios. The cooperation between the limiting block 52 and the axial guide keyway 322 forms a rigid guide structure, which completely eliminates the circumferential rotational freedom of the adjusting screw 321, avoids deflection errors caused by torque transmission, ensures that the motion trajectory is strictly linear, and improves the accuracy of the movement of the blade 1.

[0040] In one embodiment, the outer fixing ring 5 has a circular through hole 51, and the adjusting screw 321 passes through the inside of the through hole 51; four limiting blocks 52 are provided on the inner sidewall of the through hole 51; the four limiting blocks 52 are evenly distributed on the inner sidewall of the through hole 51 in the circumferential direction; the adjusting screw 321 has four guide keyways 322, and the four limiting blocks 52 are accommodated one-to-one in the inside of the four guide keyways 322.

[0041] In practical applications, compared to a single limiting block 52, setting four evenly distributed limiting blocks 52 inside the circular through hole 51, and opening four evenly distributed guide keyways 322 on the adjusting screw 321, can effectively distribute the axial load of the adjusting screw 321 evenly on the outer fixing ring 5, effectively preventing screw skewing. The four-limit design achieves N+1 redundancy, and even if a single limiting block 52 fails, it still maintains 75% constraint capacity, avoiding unusability due to the damage or loss of a single limiting block 52.

[0042] In one embodiment, the control ring 4 and the outer fixing ring 5 are coaxially arranged.

[0043] In practical applications, the control ring 4 and the outer fixing ring 5 are set coaxially. When performing skin circumcision, after the outer fixing ring 5 is positioned, only the control ring 4 needs to be rotated to cut the skin of the areola without adjusting the position of the cutter, thus avoiding the impact of multiple cutter movements on the accuracy of positioning.

[0044] In one embodiment, an arc-shaped groove 53 is provided on the outer fixing ring 5; the arc-shaped groove 53 is coaxially arranged with the outer fixing ring 5; an adjustment handle 41 is provided on the control ring 4, and the adjustment handle 41 extends to the outside of the outer fixing ring 5 after passing through the arc-shaped groove 53.

[0045] In practical applications, the arc groove 53 is used to limit the rotation area of ​​the adjustment handle 41, thereby limiting the maximum and minimum diameters of the annular structure formed by the blades 1, so as to prevent the annular structure formed by the blades 1 from being overstretched or overcompressed and cutting into the skin that does not need to be cut.

[0046] In one embodiment, the fixing component 2 includes: a positioning arc plate 21 and a telescopic arc plate 22; the positioning arc plate 21 is fixedly connected to the adjustment module 3; the first edge of the positioning arc plate 21 is fixedly connected to the blade 1; the first edge of the telescopic arc plate 22 is movably connected to the second edge of the positioning arc plate 21, and the second edge of the telescopic arc plate 22 is movably connected to the third edge of the adjacent positioning arc plate 21; multiple positioning arc plates 21 and multiple telescopic arc plates 22 are sequentially and alternately connected to form a ring.

[0047] In practical applications, the positioning arc plate 21 serves two purposes: first, to fix the blade 1 at its bottom edge; and second, to fix its side surface to the adjusting screw 321 to adjust the position of the fixed blade 1. To prevent the fixed arc plate from being stretched excessively outward, a telescopic arc plate 22 is also movably installed between two adjacent positioning arc plates 21 to limit the movement of the two adjacent positioning arc plates 21, ensuring that the adjacent telescopic arc plates 22 are kept within a certain diameter range as much as possible, forming a circular ring.

[0048] In one embodiment, an elastic rubber ring (not shown in the figure) is also included; the positioning arc plate 21, the telescopic arc plate 22 and the blade 1 are made of elastic metal material; the elastic rubber ring is sleeved on the outer side of the combination of multiple positioning arc plates 21 and multiple telescopic arc plates 22 to adjust the curvature of each positioning arc plate 21.

[0049] In practical applications, the positioning arc plate 21, the telescopic arc plate 22, and the blade 1 are made of elastic metal materials. By utilizing the elastic deformation characteristics of metal materials, each part can change its curvature under the elastic force of the elastic rubber ring during the outward stretching process, making the overall shape closer to a circle.

[0050] In practical applications, the cutter is first placed around the nipple in the corresponding position, with the nipple at the center of the outer fixing ring 5. The adjusting handle 41 is then turned to rotate the control ring 4, aligning the blade 1 with the position to be cut for the first time. After determining the position, the outer fixing ring 5 is rotated to make the first cut. Then, the adjusting handle 41 is adjusted to adjust the radius of the ring structure formed by the blade 1, and the outer fixing ring 5 is rotated around the center to make the second skin cut, thus completing the circumferential cut of the skin around the areola.

[0051] like Figure 1 and Figure 6As shown, the adjusting handle 41 includes a fixing post 411 and a positioning cap 412; the first end of the fixing post 411 is fixedly connected to the toothed ring 42; the second end of the fixing post 411 is screwed to the positioning cap 412; the fixing post 411 extends through the arc-shaped groove 53 and extends to the outside of the outer fixing ring 5; when the positioning cap 412 and the fixing post 411 are screwed together, the positioning cap 412 also abuts against the outer surface of the outer fixing ring 5, so that the control ring 4 and the outer fixing ring 5 remain relatively fixed, avoiding blade displacement during skin cutting and affecting the cutting effect.

[0052] Furthermore, to ensure the cut shape is closer to a perfect circle, the number of adjustment modules 3, fixing components 2, and blades 1 can be appropriately increased. In this embodiment, the number of fixing components 2 is 12, so at least 30 degrees of rotation is required to achieve a 360° cut. If the number of fixing components 2, blades 1, etc., is doubled, only 15 degrees of rotation is needed to complete a 360° cut. Similarly, the number of blades 1 can be appropriately reduced to decrease production costs and the complexity of the equipment structure.

[0053] In addition, this embodiment also describes the shape of the blade 1, such as... Figure 1 As shown, the bottom edge of blade 1 can be straight. A straight cutting edge, combined with the curvature of blade 1 itself, effectively prevents deformation of blade 1 during rotation, thus avoiding skin damage at the cutting edge. Or, as... Figure 2 As shown, the bottom edge of the blade 1 can be a triangular shape with a pointed tip. The pointed tip helps the blade 1 penetrate the skin more easily when it comes into contact with it, especially when facing thick or slightly hard skin. The tip can quickly cut in and begin cutting. Furthermore, the pointed area can reduce the length of the cut at the same time, making the cutting path closer to a perfect circle and reducing the influence of the curvature of the blade 1 itself on the cutting shape.

[0054] In summary, this application proposes an adjustable-caliber areola skin cutter. The radial position of the fixing component 2 is adjusted using the adjustment module 3, thereby changing the diameter of the ring of the blade 1. The control ring 4 simultaneously controls all adjustment modules 3, achieving synchronous adjustment and ensuring cutting accuracy. The outer fixing ring 5 provides positioning and protection, ensuring the nipple is centered for concentric cutting. This design allows for continuous size adjustment to adapt to different needs without obstructing the nipple, facilitating doctor operation. The radial distribution of the adjustment modules 3 and the combination of the rotating unit 31 and the telescopic unit 32 make the movement of the blade 1 more precise and smooth. The application of elastic rubber rings and elastic metal materials makes the cutter more flexible and durable during operation. Overall, this cutter improves the accuracy and convenience of surgery while reducing risks to the patient.

[0055] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. An adjustable-diameter areola skin cutter, characterized in that, include: Multiple blades are used to cut the skin; Multiple fixing components are used to fix the blades. The multiple fixing components are combined with each other to form a closed-loop ring structure. The multiple fixing components are fixedly connected to the multiple blades one by one. Multiple adjustment modules are used to adjust the radial position of the fixing components, and the multiple adjustment modules are connected to the multiple fixing components one by one; A control ring is used to simultaneously control all the adjustment modules to continuously adjust the size of the ring composed of the fixed components. The control ring is connected to each of the adjustment modules in a transmission manner. An outer fixing ring is used at least to axially limit the control ring and / or the adjustment module so that the control ring and / or the adjustment module can only rotate.

2. The areola skin cutter with adjustable diameter according to claim 1, characterized in that, The multiple adjustment modules are evenly distributed radially on the outer fixing ring, and all the adjustment modules are distributed along the radial direction of the outer fixing ring.

3. The areola skin cutter with adjustable diameter according to claim 2, characterized in that, The adjustment module includes a rotation unit and a telescopic unit; The rotating unit is rotatably connected to the outer fixed ring, and the rotating unit is also drively connected to the control ring so as to rotate under the drive of the control ring; The telescopic unit is connected to the rotating unit and is used to convert the rotational motion of the rotating unit into linear motion, so as to drive the fixed component to move radially.

4. The areola skin cutter with adjustable diameter according to claim 3, characterized in that, The rotating unit includes a threaded sleeve, which is rotatably connected to the outer fixed ring; a bevel gear is provided on the outside of the threaded sleeve. The control ring is provided with a toothed ring, which meshes with the bevel gear. When the control ring rotates, the bevel gear can drive the threaded sleeve to rotate.

5. The areola skin cutter with adjustable diameter according to claim 4, characterized in that, The telescopic unit includes an adjusting screw, the first end of which is housed inside the screw sleeve and is engaged with the screw sleeve. The second end of the adjusting screw is fixedly connected to the fixing component; At least one guide keyway is provided on the side wall of the adjusting screw, and the guide keyway extends along the axial direction of the adjusting screw; a limit block is provided on the outer fixing ring, and the limit block and the guide keyway cooperate to form a sliding pair so that the adjusting screw can only perform linear motion.

6. The areola skin cutter with adjustable diameter according to claim 5, characterized in that, The outer fixing ring has a circular through hole, and the adjusting screw passes through the inside of the through hole; Four limiting blocks are provided on the inner wall of the through hole; the four limiting blocks are evenly distributed circumferentially on the inner wall of the through hole. The adjusting screw has four guide keyways, and the four limiting blocks are respectively accommodated inside the four guide keyways.

7. The areola skin cutter with adjustable diameter according to claim 1, characterized in that, The control ring and the outer fixed ring are coaxially arranged.

8. The areola skin cutter with adjustable diameter according to claim 7, characterized in that, The outer fixing ring has an arc-shaped groove; the arc-shaped groove is coaxially arranged with the outer fixing ring; An adjustment handle is provided on the control ring, and the adjustment handle extends to the outside of the outer fixing ring after passing through the arc-shaped groove.

9. The areola skin cutter with adjustable diameter according to claim 1, characterized in that, The fixing components include: a positioning arc plate and a telescopic arc plate; The positioning arc plate is fixedly connected to the adjustment module; the first edge of the positioning arc plate is fixedly connected to the blade. The first edge of the telescopic arc plate is movably connected to the second edge of the positioning arc plate, and the second edge of the telescopic arc plate is movably connected to the third edge of the adjacent positioning arc plate; multiple positioning arc plates and multiple telescopic arc plates are sequentially and alternately connected to form a ring.

10. The areola skin cutter with adjustable diameter according to claim 9, characterized in that, It also includes elastic rubber rings; The positioning arc plate, the telescopic arc plate, and the blade are made of elastic metal material; The elastic rubber ring is sleeved on the outer side of the ring formed by the combination of multiple positioning arc plates and multiple telescopic arc plates, and is used to adjust the curvature of each positioning arc plate.

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