A skin cyst cutter

Abstract

A skin cyst cutter comprises a barrel; a control component installed inside the barrel; a cutting component installed at the movable end of the control component to cut skin cysts; the control component comprises a length control component and a depth control component, the length control component is installed inside the barrel to control the cutting length; the depth control component is installed at the movable end of the length control component to control the cutting depth; in the technical solution of the present application, the control component accurately controls the cutting component to perform cutting, so that the depth and length of the cyst incision can be accurately controlled. During the cutting, the doctor can observe the cyst condition in real time and then control the cutting component through the control component. At the same time, the cutting component can cut the cyst, thereby facilitating the removal of the cyst from the incision. At the same time, the incision length required for removing the cut cyst is shorter, which is beneficial to the patient's later recovery.

Description

Technical Field

[0001] The present invention relates to a cutter, in particular to a skin cyst cutter. Background Art

[0002] Skin cysts are sac-like structures that form between the skin and surrounding tissues. They may contain fluid or other substances and are common skin lesions. They can occur anywhere on the body and may be related to trauma or infection. The primary clinical symptom is skin lesions. Skin cysts are prone to infection, resulting in ulceration and redness on the surface of the cyst. The contents may liquefy and leak out, producing a foul odor. Therefore, surgical removal of the cyst is necessary to prevent further infection and relieve the patient's pain and discomfort.

[0003] Nowadays, when performing skin cyst surgery, the doctor will use sterilized tools to disinfect the skin on the surface of the cyst, then make a small incision above the cyst, and then remove the cyst and its wall through the incision. Because cysts vary in shape and size, the incision on the surface of the cyst also varies in size. The doctor is difficult to control the size and depth of the incision during the operation, and it requires the doctor to have a high level of skill.

[0004] In response to the above problems, we provide a skin cyst cutter. Summary of the Invention

[0005] The present invention aims to overcome the deficiencies in the prior art and provide a skin cyst cutter.

[0006] The object of the present invention is achieved like this:

[0007] A skin cyst cutter comprises a barrel;

[0008] A control assembly is installed inside the cylinder;

[0009] The cutting component is installed at the movable end of the control component to cut the skin cyst.

[0010] A gripping handle is provided on the top of the outer side of the cylinder, and a gripping groove is provided on the surface of the gripping handle.

[0011] Furthermore, the barrel is a hollow cylinder with upper and lower surfaces open, and the open surface at the bottom of the barrel is a cutting window.

[0012] Furthermore, the control component includes a length control component and a depth control component. The length control component is installed inside the barrel to control the cutting length; the depth control component is installed at the movable end of the length control component to control the cutting depth.

[0013] Furthermore, the length control component includes a top plate and a movable platform. The top plate is arranged on the top of the cylinder, the movable platform is installed on the bottom of the top plate, and the depth control component is installed on the movable end of the movable platform. The movable platform drives the depth control component to move along the movable platform.

[0014] Furthermore, the depth control assembly includes a depth control push rod and a depth control ear plate. The depth control push rod is installed on the movable end of the length control assembly, and the movable end of the depth control push rod faces the bottom of the cylinder. The depth control ear plate is set on the movable end of the depth control push rod. The cutting assembly is installed inside the depth control ear plate. The depth control push rod drives the depth control ear plate to move up and down, and then drives the cutting assembly to move up and down to control the cutting depth.

[0015] Furthermore, the cutting assembly includes a cutting motor, a mounting plate, a driving wheel, and a cutting belt. A pair of the mounting plates are fixedly connected to the inner side of the depth control ear plate, and two driving wheels are rotatably connected between the pair of mounting plates. The two driving wheels are respectively located at the upper and lower ends of the mounting plate. The outer sides of the two driving wheels are covered with the cutting belt, and a plurality of cutting teeth are evenly spaced on the outer side of the cutting belt. The cutting motor is installed on one side of the depth control ear plate, and the output shaft of the cutting motor extends to the inner side of the mounting plate and is fixedly connected to the driving wheel located at the upper end of the mounting plate.

[0016] Furthermore, a disinfection component is installed at the bottom of the cylinder.

[0017] Furthermore, the disinfection assembly includes a disinfection ring, a nozzle, a liquid storage tank, and a pump body. The liquid storage tank is installed inside the cylinder, and alcohol is stored in the liquid storage tank. The pump body is installed on one side of the liquid storage tank, and the disinfection ring is installed on the bottom outside the cylinder. The disinfection ring is a hollow ring structure and is compatible with the cylinder. Several nozzles are installed at the bottom of the disinfection ring. The input end of the pump body and the liquid storage tank, and the output end of the pump body and the disinfection ring are connected through pipes.

[0018] Furthermore, a support assembly is installed on the outside of the cylinder.

[0019] Furthermore, the support assembly includes a rotating part, a support rod, a spreading rod, a sliding seat, a support seat, and a foot plate. The rotating parts are respectively installed on both sides of the upper part of the cylinder, the rotating part is rotatably connected to the top end of the support rod, the bottom end of the rotating part is rotatably connected to the support seat, the foot plate is arranged at the bottom of the support seat, the spreading rod is respectively installed on both sides of the lower part of the cylinder, the movable end of the spreading rod is rotatably connected to the sliding seat, the sliding seat is slidably connected to the inner side of the support rod, and the sliding seat slides along the support rod.

[0020] Furthermore, the foot plate is a C-shaped structure.

[0021] Furthermore, first spreading components are installed on both sides of the cutting component.

[0022] Furthermore, the first opening assembly includes an opening base, an opening push rod, a return spring, a support plate, and a rotating rod. The rotating rod is provided on the upper outer sides of the two mounting plates, and the rotating rod is rotatably connected to the upper part of the support plate. The opening base is provided on the upper part of the two mounting plates, and the opening base is L-shaped. The opening push rod is installed inside the opening base, and the return spring is provided on the outer side of the mounting plate on the upper part of the rotating rod. The other end of the return spring contacts the support plate, and the movable end of the opening push rod extends to push the upper end of the support plate to rotate inward, so that the lower end of the support plate rotates outward.

[0023] Furthermore, a second expansion assembly is installed at the lower portion of the outer side of the cylinder.

[0024] Furthermore, the second expansion assembly includes a swing motor, a swing head, upper and lower telescopic rods, inner and outer telescopic rods, and an expansion piece. Two of the swing motors are installed on the lower outer side of the cylinder. The output shaft of the swing motor is installed with the swing head. The upper and lower telescopic rods are installed on the lower part of the swing head. The movable ends of the upper and lower telescopic rods are installed with the inner and outer telescopic rods. The movable ends of the inner and outer telescopic rods face one side of the cylinder, and the expansion piece is installed on the movable ends of the inner and outer telescopic rods.

[0025] Advantages of the present invention:

[0026] In the technical solution of this application, the control component precisely controls the cutting component to perform cutting, allowing for precise control of both the depth and length of the cyst incision. During the cutting process, the doctor can observe the cyst's condition in real time and then control the cutting component through the control component. Simultaneously, the cutting component can cut the cyst, facilitating its removal from the incision. Furthermore, the incision required for removal is shorter, facilitating the patient's subsequent recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a skin cyst cutter Figure 1 .

[0028] Figure 2 A schematic diagram of the structure of a skin cyst cutter Figure 2 .

[0029] Figure 3 The figure is a schematic diagram of the front and back cross-sectional structure of a skin cyst cutter.

[0030] Figure 4This is an enlarged schematic diagram of point A.

[0031] Figure 5 The figure is a schematic diagram of the left and right side cross-sectional structure of a skin cyst cutter.

[0032] Figure 6 This is a schematic diagram of the cutting component and the first expansion component structure.

[0033] In the figure: 1. Cylinder, 11. Cutting window, 12. Handle, 2. Control assembly, 21. Length control assembly, 211. Top plate, 212. Moving platform, 22. Depth control assembly, 221. Depth control push rod, 222. Depth control ear plate, 3. Cutting assembly, 31. Cutting motor, 32. Mounting plate, 33. Drive wheel, 34. Cutting belt, 341. Cutting teeth, 4. Disinfection assembly, 41. Disinfection ring, 42. Nozzle, 4 3. Liquid storage tank, 44. Pump body, 5. Support assembly, 51. Rotating part, 52. Support rod, 53. Spreading rod, 54. Sliding seat, 55. Support seat, 56. Foot plate, 6. First spreading assembly, 61. Spreading base, 62. Spreading push rod, 63. Return spring, 64. Support plate, 65. Rotating rod, 7. Second spreading assembly, 71. Swing motor, 72. Swing head, 73. Upper and lower telescopic rods, 74. Inner and outer telescopic rods, 75. Spreading part. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0035] An embodiment of the present application provides a skin cyst cutter.

[0036] Example 1, as Figure 1-6 shown.

[0037] A skin cyst cutter comprises a barrel 1.

[0038] The barrel 1 is a hollow cylinder with open tops and bottoms. The open bottom surface of the barrel 1 serves as a cutting window 11, through which the cutting assembly 3 extends to incise the skin on the surface of the cyst. A gripping handle 12 is provided at the top of the barrel 1. The gripping handle 12 has a gripping groove, which allows the surgeon to hold the entire cutter, making it easier for the surgeon to operate.

[0039] A skin cyst cutter comprises a control component 2 installed inside a barrel 1 to control the length and depth of cyst cutting.

[0040] The control component 2 includes a length control component 21 and a depth control component 22. The length control component 21 is installed inside the barrel 1 to control the cutting length; the depth control component 22 is installed at the movable end of the length control component 21 to control the cutting depth.

[0041] The length control assembly 21 includes a top plate 211 and a movable platform 212. The top plate 211 is mounted on the top of the barrel 1, and the movable platform 212 is mounted on the bottom of the top plate 211. The movable platform 212 is a linear motor platform. The movable end of the movable platform 212 is mounted with the depth control assembly 22. The movable platform 212 drives the depth control assembly 22, and the movable platform 212 moves along the movable platform 212, thereby controlling the length of the cyst skin incision. Different incision lengths are made according to the size of the cyst.

[0042] The depth control assembly 22 includes a depth control push rod 221 and a depth control lug 222. The depth control push rod 221 is mounted on the movable end of the length control assembly 21. The depth control push rod 221 is an electric push rod that can be extended and retracted. The movable end of the depth control push rod 221 faces the bottom of the barrel 1. The depth control lug 222 is located on the movable end of the depth control push rod 221. The cutting assembly 3 is mounted inside the depth control lug 222. The depth control push rod 221 drives the depth control lug 222 up and down, thereby driving the cutting assembly 3 up and down to control the cutting depth. The depth control push rod 221 can drive the cutting assembly 3 to extend to a certain depth, incising the skin on the surface of the cyst. The doctor can then determine whether to proceed with the incision based on the condition of the cyst. During the incision, the depth control push rod 221 only needs to extend a certain distance to drive the cutting assembly 3 to cut the cyst. This splits the cyst into two, making it easier to remove it from the incision.

[0043] A skin cyst cutter comprises a cutting component 3 mounted on the movable end of a control component 2 for cutting skin cysts.

[0044] The cutting assembly 3 includes a cutting motor 31, a mounting plate 32, a drive wheel 33, and a cutting belt 34. A pair of mounting plates 32 are fixedly connected to the inner side of the depth control lug 222. Two drive wheels 33 are rotatably connected between the mounting plates 32. The two drive wheels 33 are located at the upper and lower ends of the mounting plates 32, respectively. The outer sides of the two drive wheels 33 are covered with the cutting belt 34, which lies parallel to the plane of the length control assembly 21. Several cutting teeth 341 are evenly spaced on the outer side of the cutting belt 34. The cutting motor 31 is mounted on one side of the depth control lug 222. The output shaft of the cutting motor 31 extends inside the mounting plate 32 and is fixedly connected to the drive wheel 33 located at the upper end of the mounting plate 32. During cutting, the cutting motor 31 is activated, and the drive wheel 33 connected thereto drives the cutting belt 34 to rotate. The cutting teeth 341 on the surface cut the skin and cysts on the surface of the patient's cyst.

[0045] A disinfection component 4 is installed at the bottom of the barrel 1 to disinfect the skin on the surface of the cyst before surgery.

[0046] The disinfection assembly 4 includes a disinfection ring 41, a nozzle 42, a liquid storage tank 43, and a pump body 44. The liquid storage tank 43 is installed inside the barrel 1. Alcohol is stored in the liquid storage tank 43. The pump body 44 is installed on one side of the liquid storage tank 43. The disinfection ring 41 is installed on the bottom of the outer side of the barrel 1. The disinfection ring 41 is a hollow annular structure that is compatible with the barrel 1. Several nozzles 42 are installed at the bottom of the disinfection ring 41. The input end of the pump body 44 and the liquid storage tank 43, as well as the output end of the pump body 44 and the disinfection ring 41 are connected through pipes. During disinfection, the pump body 44 is started to pump the alcohol stored in the liquid storage tank 43 into the disinfection ring 41, and then sprayed onto the skin on the surface of the cyst through the nozzle 42 at the bottom of the disinfection ring 41.

[0047] A support assembly 5 is installed on the outside of the barrel 1 to support the entire cutter, so that the barrel 1 and the skin on the surface of the cyst can be kept as vertical as possible, which facilitates cutting by the cutting assembly 3 and reduces damage to the skin around the cyst during cutting.

[0048] The support assembly 5 includes a rotating member 51, a support rod 52, a spreading rod 53, a sliding seat 54, a support seat 55, and a foot plate 56. The rotating member 51 is installed on both sides of the upper part of the cylinder 1. The rotating member 51 is rotatably connected to the top of the support rod 52. The bottom end of the rotating member 51 is rotatably connected to the support seat 55. The foot plate 56 is set at the bottom of the support seat 55. The foot plate 56 is a C-shaped structure. This makes the support more stable. The spreading rod 53 is installed on both sides of the lower part of the cylinder 1. The spreading rod 53 is an electric push rod that can be telescopic. The movable end of the spreading rod 53 is rotatably connected to the sliding seat 54. The sliding seat 54 is slidably connected to the inner side of the support rod 52, and the sliding seat 54 slides along the support rod 52. During support, the cylinder 1 is located directly above the cyst skin, and then a suitable support position is selected according to the location of the cyst, and then the length of the expansion rod 53 is adjusted according to the support position, and then the position of the foot plate 56 is adjusted. After the adjustment is completed, the cutter can be placed on the patient's skin surface.

[0049] The first expansion components 6 are installed on both sides of the cutting component 3. The skin incision is expanded to facilitate the doctor to observe the internal cyst in real time and then operate the control component 2 to control the cutting component 3 to cut.

[0050] The first expansion assembly 6 includes an expansion base 61, an expansion push rod 62, a return spring 63, a support plate 64, and a rotating rod 65. The rotating rod 65 is provided on the upper outer side of each of the two mounting plates 32. The rotating rod 65 is rotatably connected to the upper portion of the support plate 64. The expansion base 61 is provided on the upper portion of each of the two mounting plates 32. The expansion base 61 is L-shaped, and the expansion push rod 62 is installed inside the expansion base 61. The expansion push rod 62 is an electric push rod that can be extended and retracted. The return spring 63 is provided on the outer side of the mounting plate 32 above the rotating rod 65. The other end of the return spring 63 contacts the support plate 64. The movable end of the expansion push rod 62 extends, pushing the upper end of the support plate 64 to rotate inward, causing the lower end of the support plate 64 to rotate outward. When the cutting assembly 3 incises the skin on the surface of the cyst, the lower ends of the two support plates 64 extend into the skin incision along with the lower end of the cutting assembly 3. The spreading push rod 62 then extends, its movable end pressing against the upper ends of the support plates 64, causing them to rotate inward and, as they rotate, compressing the return spring 63. The lower ends of the support plates 64 then rotate outward, expanding the skin incision vertically, making it easier for the doctor to observe the cyst inside the skin incision. The cutting assembly 3 can then be controlled by the control assembly 2 to further extend the incision or to cut the skin cyst in two. When the first spreading assembly 6 is released, the spreading push rod 62 retracts, and the upper portions of the support plates 64 rotate outward under the elastic force of the return spring 63, causing the lower ends of the support plates 64 to rotate inward, breaking contact with the skin incision.

[0051] A second expansion component 7 is installed at the lower outer part of the barrel 1. It cooperates with the first expansion component 6 to expand the skin incision. Since the first expansion component 6 moves up and down with the cutting component 3, after the cutting is completed, the cutting component 3 and the first expansion component 6 are still located on the inner side of the skin, making it inconvenient to remove the cyst. At this time, the second expansion component 7 is needed to replace the first expansion component 6 to expand the skin incision. Then the first expansion component 6 and the cutting component 3 rise to leave enough operating space for the removal of the skin cyst.

[0052] The second expansion assembly 7 includes a swing motor 71, a swing head 72, upper and lower telescopic rods 73, inner and outer telescopic rods 74, and an expansion member 75. Two swing motors 71 are installed on the lower outer side of the barrel 1. The swing motor 71 is a stepping motor that can achieve forward and reverse rotation and fine angle rotation, thereby driving the expansion member 75 to swing outward at a suitable angle to expand the skin incision. The output shaft of the swing motor 71 is installed with the swing head 72, and the lower part of the swing head 72 is installed with the upper and lower telescopic rods 73. The movable ends of the upper and lower telescopic rods 73 are installed with the inner and outer telescopic rods 74. The movable ends of the inner and outer telescopic rods 74 face one side of the barrel 1, and the movable ends of the inner and outer telescopic rods 74 are installed with the expansion member 75. The upper and lower telescopic rods 73 and the inner and outer telescopic rods 74 are all electric push rods that can be extended and retracted, which facilitates the flexible control of the expansion member 75, so that the second expansion assembly 7 and the first expansion assembly 6 do not interfere with each other in movement. Under normal conditions, the upper and lower telescopic rods 73 and the inner and outer telescopic rods 74 control the expansion member 75 to be positioned on both sides of the barrel 1 and retracted above the lower end surface of the barrel 1. During expansion, the swing motor 71 drives the upper and lower telescopic rods 73, the inner and outer telescopic rods 74, and the expansion member 75 to rotate, bypassing the first expansion assembly 6. The upper and lower telescopic rods 73 and the inner and outer telescopic rods 74 then drive the expansion member 75 to extend into the skin incision. At this point, the swing motor 71 drives the expansion member 75 to swing outward, expanding the skin incision. At this point, the first expansion assembly 6 is released, and the cutting assembly 3 rises, leaving space for subsequent skin cyst removal.

[0053] When the present invention is used:

[0054] First, support the cutter. Place the barrel directly above the cystic skin. Then, select the appropriate support position based on the location of the cyst. Adjust the length of the spreader rod and the position of the foot plate accordingly. Once the adjustments are complete, place the cutter on the patient's skin surface.

[0055] At this time, the skin of the patient's cyst is disinfected by the disinfection component. The pump body is started to pump the alcohol stored in the liquid storage tank into the disinfection ring, and then sprayed onto the skin on the cyst surface through the nozzle at the bottom of the disinfection ring.

[0056] The cutting assembly then cuts the skin on the surface of the cyst. During cutting, the control assembly controls the cutting depth and length of the incision. The cutting motor is activated, and the driving wheel connected thereto drives the cutting belt to rotate, cutting the skin on the surface of the patient's cyst and the cyst through the cutting teeth on the surface. The depth control push rod drives the depth control lugs up and down, thereby driving the cutting assembly up and down to control the cutting depth. The depth control push rod can drive the cutting assembly to extend to a certain depth to incise the skin on the surface of the cyst. At this time, the lower ends of the two support plates also extend into the skin incision along with the lower end of the cutting assembly. Then, the expansion push rod extends, and its movable end squeezes the upper ends of the support plates, causing the upper ends of the support plates to rotate inward, while squeezing the return spring. The lower ends of the support plates then rotate outward, expanding the skin incision along its vertical direction, making it easier for the doctor to observe the condition of the cyst inside the skin incision. The size of the incision is then determined based on the cyst's condition. The mobile platform drives the depth control assembly, moving it along the cutting assembly to control the length of the skin incision. Incisions of varying lengths are made for cysts of varying sizes. Furthermore, the need for incision is determined based on the cyst's condition. If so, the control assembly controls the cutting assembly to bisect the cyst.

[0057] After the incision is completed, the second expansion assembly is activated. The swing motor drives the upper and lower telescopic rods, the inner and outer telescopic rods, and the expansion member to rotate, bypassing the first expansion assembly. The upper and lower telescopic rods and the inner and outer telescopic rods then drive the expansion member to extend into the inner side of the skin incision. At this time, the swing motor drives the expansion member to swing outward to expand the skin incision. At this time, the first expansion assembly can be released, and as the cutting assembly rises, operating space is left for subsequent skin cyst removal.

[0058] At this point, the doctor only needs to use other tools to remove the skin cyst.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0060] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in this application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the claims. It should be understood that the present application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is limited only by the appended claims.

Claims

1. A skin cyst cutter, characterized by: Including a cylinder; A control assembly is installed inside the cylinder; a cutting assembly, mounted on the movable end of the control assembly, for cutting the skin cyst; A gripping handle is provided on the top of the outer side of the cylinder, and a gripping groove is provided on the surface of the gripping handle; The cylinder is a hollow cylinder with upper and lower surfaces open, and the open surface at the bottom of the cylinder is a cutting window; The control assembly includes a length control assembly and a depth control assembly. The length control assembly is installed inside the barrel to control the cutting length; the depth control assembly is installed at the movable end of the length control assembly to control the cutting depth. The depth control assembly includes a depth control push rod and a depth control ear plate. The movable end of the length control assembly is installed with the depth control push rod, the movable end of the depth control push rod faces the bottom of the cylinder, the movable end of the depth control push rod is provided with the depth control ear plate, the cutting assembly is installed inside the depth control ear plate, the depth control push rod drives the depth control ear plate to move up and down, and then drives the cutting assembly to move up and down to control the cutting depth; The cutting assembly includes a cutting motor, a mounting plate, a driving wheel, and a cutting belt. A pair of the mounting plates are fixedly connected to the inner side of the depth control ear plate. Two driving wheels are rotatably connected between the pair of mounting plates. The two driving wheels are respectively located at the upper and lower ends of the mounting plate. The outer sides of the two driving wheels are covered with the cutting belt. A plurality of cutting teeth are evenly spaced on the outer side of the cutting belt. The cutting motor is installed on one side of the depth control ear plate. The output shaft of the cutting motor extends to the inner side of the mounting plate and is fixedly connected to the driving wheel located at the upper end of the mounting plate. First spreading components are installed on both sides of the cutting component; The first opening assembly includes an opening base, an opening push rod, a return spring, a support plate, and a rotating rod. The rotating rod is provided on the upper outer sides of the two mounting plates, and the rotating rod is rotatably connected to the upper part of the support plate. The opening base is provided on the upper parts of the two mounting plates, and the opening base is L-shaped. The opening push rod is installed inside the opening base, and the return spring is provided on the outer side of the mounting plate on the upper part of the rotating rod. The other end of the return spring contacts the support plate, and the movable end of the opening push rod extends to push the upper end of the support plate to rotate inward, so that the lower end of the support plate rotates outward; A second expansion assembly is installed at the lower portion of the outer side of the cylinder; The second expansion assembly includes a swing motor, a swing head, upper and lower telescopic rods, inner and outer telescopic rods, and an expansion piece. Two swing motors are installed on the lower outer side of the cylinder. The output shaft of the swing motor is installed with the swing head. The upper and lower telescopic rods are installed on the lower part of the swing head. The movable ends of the upper and lower telescopic rods are installed with the inner and outer telescopic rods. The movable ends of the inner and outer telescopic rods face one side of the cylinder, and the expansion piece is installed on the movable ends of the inner and outer telescopic rods.

2. The skin cyst cutter according to claim 1, characterized in that: The length control component includes a top plate and a moving platform. The top plate is set on the top of the cylinder, the moving platform is installed on the bottom of the top plate, and the depth control component is installed on the movable end of the moving platform. The moving platform drives the depth control component to move along the moving platform.

3. The skin cyst cutter according to claim 1, characterized in that: A disinfection component is installed at the bottom of the cylinder.

4. The skin cyst cutter according to claim 1, characterized in that: A supporting assembly is installed outside the cylinder.

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