Carbon dioxide dot array laser therapeutic apparatus

Abstract

This invention belongs to the field of dermatological diagnostic technology, specifically a carbon dioxide fractional laser therapy device, including a main unit, a carbon dioxide laser module, an air pump, a circulating cooling module, a light guide arm, and a fractional scanning handpiece; it also includes a protective mirror, which is tubular and threadedly connected to the end of the fractional scanning handpiece. A mounting frame is provided on one side wall of the protective mirror, and a magnifying glass is installed within the mounting frame. When treating large areas of skin, the skin is first cleaned, and the user assembles the parts on the protective mirror. The protective mirror rotates according to the threaded connection, and the mounting slot drives a wiping cotton to rotate and approach the lens in the fractional scanning handpiece. Wiping and cleaning the lens in the fractional scanning handpiece before treatment ensures that the fractional light spots are regular in shape and have sharp boundaries, preventing light spot diffusion and adhesion, forming uniformly sized micro-thermal damage columns, allowing for precise achievement of the preset fractional spacing and density, reducing accidental damage to normal skin, and improving the therapeutic effect of the device on the skin.

Description

Technical Field

[0001] This invention belongs to the field of dermatological diagnostic technology, specifically a carbon dioxide fractional laser therapy device. Background Technology

[0002] CO2 fractional laser therapy is a mainstream ablative laser treatment device in the fields of dermatology and plastic surgery. Its output of mid- and far-infrared lasers is based on the principle of focal photothermal action, forming an array of three-dimensional micro-thermal damage columns on the skin surface, activating the body's wound repair mechanism, driving the regeneration and remodeling of collagen in the dermis, and is widely used in clinical scenarios such as acne scar repair, photoaging skin rejuvenation, and removal of benign epidermal lesions. It is one of the core devices for skin reconstruction treatment at present. In clinical practice, the cleanliness of the skin surface is a key prerequisite for ensuring the accuracy and safety of treatment. However, existing equipment systems generally lack a quantitative control mechanism for the amount of sweat and sebum residue on the skin surface. Before treatment, they often rely on manual cleansing and visual observation to judge the degree of cleanliness, which is greatly affected by the experience level of the operator and is very easy to cause a series of technical problems and clinical risks due to incomplete cleansing. In large-scale clinical treatment, on the one hand, the sweat remaining on the skin surface, mainly composed of water, has a strong absorption effect on wavelength lasers; before the laser energy reaches the target tissue, it is largely intercepted and consumed by the surface sweat, resulting in a significant decrease in the effective energy acting on the dermis, insufficient depth of microthermal damage column, and a significant reduction in treatment intensity and tissue repair stimulation effect; at the same time, the sweat boils and vaporizes instantly when irradiated by the laser, forming a temporary optical vapor barrier, which not only obstructs the operating field of view, causing local missed scans and repeated scans, but also causes lateral heat diffusion, aggravating the degree of postoperative erythema and edema, and increasing the probability of post-inflammatory hyperpigmentation; on the other hand, skin secretion Sebum forms an uneven film of oil on the epidermis, causing refraction and diffuse scattering of the incident laser. This results in diffused dot matrix spots, blurred boundaries, and distorted micro-spot morphology, significantly reducing the uniformity of energy distribution in the treatment area. The oil undergoes thermal decomposition and carbonization under the high temperature of the laser, generating a large number of carbon particles and oil fumes. This not only increases the concentration of smoke during the procedure and raises the risk of aerosol exposure for medical staff, but also continuously adheres to the protective window surface at the front of the scanning handpiece, causing a continuous decrease in window transmittance and a gradual attenuation of output energy. Long-term accumulation can also burn the optical coating, shorten the lifespan of core optical components, and significantly increase equipment maintenance costs. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a carbon dioxide fractional laser therapy device.

[0004] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a carbon dioxide fractional laser therapy device, including a main unit, a carbon dioxide laser module, an air pump, a circulating cooling module, a light guide arm, and a fractional scanning handpiece; it also includes: A protective mirror, which is tubular and threaded to the end of a dot matrix scanning handpiece, has a mounting frame on one side wall of the protective mirror, in which a magnifying glass is mounted. An air extraction pipe is located on the inner wall of the protective mirror, and a ventilation channel is provided in the mounting frame between the bottom of the protective mirror and the magnifying glass. The air extraction pipe is connected to an air pump via a flexible hose. A mounting groove is located on the top of the protective mirror, in which a wiping cotton is placed, which contacts the lens in the dot matrix scanning handpiece. The mounting ring is installed on the bottom edge of the protective mirror and is detachably mounted to the protective mirror. A skin detector is provided on the side wall of the mounting ring and faces the skin surface. A pressing box is installed on the side of the mounting ring away from the skin detector. A pressing switch is provided on the outside of the pressing box, and a drive motor is provided inside it. A rotating ring is rotatably connected to the mounting ring and is driven by the drive motor. A cleaning rod is distributed in a ring around the bottom of the rotating ring around the protective mirror. The cleaning rod has a cleaning cotton around its outer periphery, and both ends of the cleaning rod are rotatably connected to the rotating ring.

[0005] Preferably, the mounting ring is provided with a toothed ring, which is connected to one end of the cleaning rod. The bottom of the pressing box is connected to the edge of the mounting ring. The part where the pressing box is connected to the mounting ring is inclined. Cleaning blocks are evenly distributed on the inner wall of the inclined surface of the pressing box. The cleaning blocks are distributed in a ring around the protective mirror, and the bottom arc surface of the cleaning blocks is in contact with the cleaning cotton. The inner wall of the inclined surface of the pressing box is connected to the air pump suction end through a hose. The air pumping part of the pressing box is located between adjacent cleaning blocks. The main unit is provided with a storage box. The protective mirror is placed in the storage box. A lifting plate is slidably connected to the bottom of the storage box through a spring. A liquid storage bladder is provided between the bottom of the lifting plate and the storage box. The liquid storage bladder is connected to the hole on the lifting plate. A water outlet is provided on the side wall of the storage box.

[0006] Preferably, the outer periphery of the mounting ring is provided with an oil scraper, the oil scraper has a frame structure, the top of the oil scraper is made of a hard material, and it is connected to the mounting ring by a spring lifting mechanism.

[0007] Preferably, the frame of the scraper is provided with a filter cotton, and the filter cotton is provided with a filter plate, which is tilted towards the skin and has a desiccant on it.

[0008] Preferably, the scraper blade is provided with a spray pipe located inside the filter cotton, and a storage bladder is provided inside the spray pipe. A spray block is slidably connected to one side of the spray pipe. The end and middle of the spray block are hinged by a torsion spring. The outer peripheral edge of the rotating ring is wavy and contacts the spray block. The inlet of the storage bladder is connected to an external storage tank, and the outlet is connected to the spray pipe nozzle.

[0009] Preferably, a sliding plate is slidably connected to the cleaning rod by a spring, and the sliding plate slides toward the inside of the cleaning rod, with the sliding plate located between the cleaning rod and the cleaning cotton.

[0010] Preferably, the sliding piece has extension strips on both sides, and the extension strips are arc-shaped and located between adjacent sliding pieces.

[0011] Preferably, the cleaning block is slidably connected to the squeezing block by a spring. The squeezing block extends out of the surface of the cleaning block in an arc shape. A disinfection bladder is provided between the squeezing block and the cleaning block. The disinfection bladder is connected to the disinfection conveying device configured in the main unit. The holes evenly distributed on the squeezing block are connected to the disinfection bladder.

[0012] Preferably, the cleaning block has rollers on both sides, and the rollers contact the extension strip through the cleaning cotton.

[0013] Preferably, the extrusion block is located between adjacent rollers, and the extrusion block is provided with protrusions. The cleaning cotton is annular and connected and distributed along the axial direction of the cleaning rod, and the protrusions are inserted into the gaps of the cleaning cotton.

[0014] The beneficial effects of this invention are as follows: 1. The carbon dioxide fractional laser therapy device of the present invention, when treating large areas of skin, first cleans the skin, and the user installs the parts on the protective lens. The protective lens rotates according to the threaded connection method, and the mounting groove drives the wiping cotton to rotate and approach the lens in the fractional scanning handpiece. Wiping and cleaning the lens in the fractional scanning handpiece before treatment can make the fractional light spot shape regular and the boundary sharp, avoid the light spot diffusion and mutual adhesion, form micro-thermal damage columns of uniform size, so that the preset fractional spacing and density can be accurately achieved, reduce accidental damage to normal skin, and improve the treatment effect of the device on the skin.

[0015] 2. The carbon dioxide fractional laser therapy device of the present invention has a mounting ring fixed to the end of a protective mirror, and a rotating ring driven by a drive motor. The rotating ring drives a cleaning rod to rotate around the protective mirror. The cleaning rod wipes the patient's skin with a cleaning cotton to remove sweat and oil, improving the cleanliness of the skin before or during treatment, thereby improving the therapeutic effect of the device on the skin. Furthermore, the slow rotation of the cleaning rod and the cleaning cotton can also directly peel off dead skin and other impurities on the skin surface through physical friction, preventing impurities from blocking laser penetration, thereby improving the therapeutic effect. Attached Figure Description

[0016] The invention will now be further described with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is an internal diagram showing the installation ring entering the storage box; Figure 3 It is a 3D image of the protective mirror; Figure 4 It is a 3D view of the cleaning rod in cross-section; Figure 5 It is a sectional view from the side of the press box; Figure 6 This is a cross-sectional view along the direction of the cleaning rod section; Figure 7 This is a cross-sectional view of the spray pipe; Figure 8 This is a schematic diagram of the spray block extending into the spray pipe; In the diagram: Main unit 1, Protective mirror 11, Mounting frame 12, Magnifying glass 13, Suction pipe 14, Wiping cotton 15, Mounting ring 16, Skin detector 17, Press box 18, Press switch 19, Drive motor 2, Rotating ring 21, Cleaning rod 22, Cleaning cotton 23, Toothed ring 24, Cleaning block 25, Storage box 26, Lifting plate 27, Liquid reservoir 28, Oil scraper 29, Filter cotton 3, Filter plate 31, Spray pipe 32, Storage bladder 33, Spray block 34, Sliding plate 35, Extension strip 36, Squeezing block 37, Disinfection bladder 38, Roller 39, Protrusion 4. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1: To effectively solve the above problems, see the attached diagram in the instruction manual. Figure 1-8 As shown, a carbon dioxide fractional laser therapy device includes a main unit 1, a carbon dioxide laser module, an air pump, a circulating cooling module, a light guide arm, and a fractional scanning handpiece; the main unit 1 integrates a main control circuit to regulate the operation and parameters of each component; the carbon dioxide laser module serves as an energy source to generate a laser beam; the circulating cooling module continuously dissipates heat from the laser module, and the air pump provides clean airflow and suction; the laser beam is transmitted to the fractional scanning handpiece via the light guide arm, and the handpiece has a built-in galvanometer system that modulates the single laser beam into a fractional beam to act on the skin for treatment; Also includes: A protective mirror 11 is tubular and threaded to the end of a dot matrix scanning handpiece. A mounting frame 12 is provided on one side wall of the protective mirror 11, and a magnifying glass 13 is installed inside the mounting frame 12. An air extraction pipe 14 is provided on the inner wall of the protective mirror 11. A ventilation channel is provided in the mounting frame 12 between the bottom of the protective mirror 11 and the magnifying glass 13. The air extraction pipe 14 is connected to an air pump through a flexible hose. A mounting groove is provided on the top of the protective mirror 11, and a wiping cotton 15 is provided inside the mounting groove. The wiping cotton 15 contacts the lens in the dot matrix scanning handpiece. Mounting ring 16 is mounted on the bottom edge of protective mirror 11. Mounting ring 16 and protective mirror 11 are detachably mounted. A skin detector 17 is provided on the side wall of mounting ring 16 and faces the skin surface. A pressing box 18 is mounted on the side of mounting ring 16 away from the skin detector 17. A pressing switch 19 is provided on the outside of pressing box 18, and a drive motor 2 is provided inside it. A rotating ring 21 is rotatably connected to mounting ring 16. The rotating ring 21 is connected to the drive motor 2. A cleaning rod 22 is distributed in a ring around the bottom of rotating ring 21 around protective mirror 11. The cleaning rod 22 has a cleaning cotton 23 on its outer periphery. The two ends of the cleaning rod 22 are rotatably connected to rotating ring 21. The protective lens 11 is installed at the end of the dot matrix scanning handpiece via a threaded connection, allowing users to easily replace different protective lenses 11. The magnifying glass 13 is used to magnify the skin treatment surface for easy observation. The magnifying glass 13 can be flexibly installed and removed via the mounting frame 12 installed on the side wall of the protective lens 11. The skin detector 17 is a conventional skin detection sensor, including multi-electrode composite impedance and capacitance integrated sensors. One detection method is as follows: by using multiple sets of electrodes and sensors, the equivalent capacitance and equivalent resistance of the skin are measured simultaneously. The difference in electrical properties between water and oil is used to calculate the two parameters: sweat has strong conductivity, which will significantly reduce the skin impedance and increase the capacitance value; sebum is an insulator, which will increase the skin impedance but has little effect on the capacitance value. The skin detector 17 has a built-in algorithm that calculates through a circuit model, and can output moisture and oil values ​​simultaneously with a single contact, realizing rapid detection of two parameters. The push switch 19 controls the start and stop of the drive motor 2. The drive motor 2 is connected to the rotating ring 21 through gear meshing, so that the drive motor 2 drives the rotating ring 21 to rotate. Specific workflow: When treating small areas of skin, the user can remove the parts on the protective lens 11. The user only needs to loosen the connection between the mounting ring 16 and the bottom edge of the protective lens 11 to remove the mounting ring 16 along with other parts, forming a single protective lens 11, which improves the ease of use of the treatment device and thus enhances its practicality; then it is installed on the end of the fractional scanning handpiece, and the end of the protective lens 11 contacts the patient's skin to begin laser treatment; When treating large areas of skin, the skin is first cleaned. The user then installs all the parts on the protective lens 11. The protective lens 11 rotates according to the threaded connection, and the mounting slot drives the wiping cotton 15 to rotate and approach the lens in the fractional scanning handpiece. Wiping and cleaning the lens in the fractional scanning handpiece before treatment ensures that the fractional light spot is regular in shape and has sharp edges, avoiding light spot diffusion and adhesion, forming uniformly sized micro-thermal damage columns. This allows the preset fractional spacing and density to be accurately achieved, reducing accidental damage to normal skin and improving the treatment effect of the device on the skin. In addition, the wiping cotton 15 covers the lens in the fractional scanning handpiece, protecting and maintaining clarity and preventing contamination during the cleaning process. Then, the user holds the press box 18 while holding the protective mirror 11, reducing the area obstructed by the magnifying glass 13 and the protective mirror 11, thus improving the clarity of observation during treatment or cleaning. The user touches the press switch 19, starting the drive motor 2 and moving the mounting ring 16 across the patient's skin. The mounting ring 16 is fixed to the end of the protective mirror 11. The rotating ring 21 is driven by the drive motor 2 to rotate, causing the cleaning rod 22 to rotate around the protective mirror 11. The cleaning rod 22 wipes the patient's skin with the cleaning cotton 23, removing sweat and oil, improving the cleanliness of the skin before or during treatment, thereby improving the treatment effect of the device. Furthermore, the cleaning rod 22 slowly rotates the cleaning cotton 23, which can also directly peel off dead skin and other impurities on the skin surface through physical friction, preventing impurities from blocking laser penetration, thus improving the treatment effect. Subsequently, during the treatment process, the air pump draws air into the internal environment of the protective mirror 11 through the air extraction tube 14, and the ventilation channel provided by the mounting frame 12 replenishes air into the protective mirror 11. The ventilation channel can be filled with filter cotton 3, so that clean air continuously passes through the inside of the protective mirror 11, carrying away the smoke generated during treatment and unifying the direction of the smoke, preventing the smoke from spreading and adhering to the inner wall of the protective mirror 11, affecting the clarity, delaying the treatment of the user, and improving the cleanliness of the internal environment of the protective mirror 11. Furthermore, as the continuous clean air passes through the protective lens 11, it blows across the surface of the skin being treated, lowering the skin temperature, reducing discomfort, and improving the comfort of the treatment, thereby enhancing the practicality of the device. Moreover, the directional airflow within the protective lens 11 cavity forms a continuous air barrier in front of the lens, preventing upward-drifting carbonized particles and tissue sputterings from directly adhering to the lens surface during treatment, slowing down the rate of lens contamination, reducing the frequency of lens wiping and replacement, and improving the continuity and efficiency of single large-area skin treatments. In addition, the installation slot guides the incoming clean and dry air to the skin surface. The continuous dry airflow inside the protective lens 11 can keep the treated wound in a relatively dry environment, avoid sweat and tissue exudate from soaking the wound for a long time, reduce the conditions for bacterial growth, help reduce the probability of postoperative infection, shorten the overall wound healing cycle, and thus improve the treatment effect of the device on the skin. When treatment begins after cleaning, the user can choose to remove the mounting ring 16 or move the mounting position of the mounting ring 16 upwards, so that the bottom of the protective mirror 11 is below the mounting ring 16. The user can then use the protective mirror 11 to make vertical contact with the skin to avoid sliding and rubbing the wound. The mounting ring 16 and the rotating ring 21 are positioned above the skin and serve as a shield to protect the wound, preventing external sources of infection from contacting the wound, further reducing the probability of postoperative infection, and improving the treatment effect of the device on the skin.

[0020] Example 2: Based on Embodiment 1, the mounting ring 16 is provided with a toothed ring 24, which is connected to one end of the cleaning rod 22. The bottom of the pressing box 18 is connected to the edge of the mounting ring 16. The part where the pressing box 18 is connected to the mounting ring 16 is inclined. Cleaning blocks 25 are evenly provided on the inner wall of the inclined surface of the pressing box 18. The cleaning blocks 25 are distributed in a ring around the protective mirror 11, and the bottom arc surface of the cleaning blocks 25 is attached to the cleaning cotton 23. The inner wall of the inclined surface of the pressing box 18 is connected to the air pump suction end through a hose. The air pumping part of the pressing box 18 is located between adjacent cleaning blocks 25. The main unit 1 is provided with a storage box 26. The protective mirror 11 is placed in the storage box 26. The bottom of the storage box 26 is slidably connected to a lifting plate 27 through a spring. A liquid storage bladder 28 is provided between the bottom of the lifting plate 27 and the storage box 26. The liquid storage bladder 28 is connected to the hole on the lifting plate 27. A water outlet is provided on the side wall of the storage box 26. The mounting ring 16 has an oil scraper 29 on its outer periphery. The oil scraper 29 has no frame structure, and the top of the oil scraper 29 is made of hard material. It is connected to the mounting ring 16 by spring lifting. The frame of the scraper 29 is provided with a filter cotton 3, and the filter cotton 3 is provided with a filter sheet 31. The filter sheet 31 is tilted towards the skin and a desiccant is provided on the filter sheet 31. The oil scraper 29 is provided with a spray pipe 32, which is located inside the filter cotton 3. The spray pipe 32 is provided with a storage bladder 33. A spray block 34 is slidably connected to one side of the spray pipe 32. The end and middle of the spray block 34 are hinged by a torsion spring. The outer peripheral edge of the rotating ring 21 is wavy and contacts the spray block 34. The inlet of the storage bladder 33 is connected to an external storage tank, and the outlet is connected to the nozzle of the spray pipe 32. Specific workflow: The gear ring 24 is fixed on the mounting ring 16 and remains stationary along with the mounting ring 16. Rotating the ring 21 drives the cleaning rod 22 to rotate. The end of the cleaning rod 22 is connected to the gear ring 24 via gears, so that the cleaning rod 22 rotates on its own axis while rotating around the protective mirror 11. During the rotation of the cleaning rod 22, the cleaning cotton 23 absorbs and transfers sweat and oil from the skin to the surface of that area. The cleaning cotton 23 rotates to the area between adjacent cleaning blocks 25. One cleaning block 25 slightly squeezes the cleaning cotton 23, while the other increases the squeezing force to squeeze out the sweat and oil absorbed by the cleaning cotton 23. The air pump of the pressing box 18 draws air to the area of ​​the cleaning cotton 23 to remove sweat and oil, improving the cleaning effect and thus improving the skin cleaning efficiency, thereby improving the treatment efficiency. In addition, the user can preheat the cleaning rod 22, for example, by preheating the cleaning rod 22 to the heating source to heat up the oil on the cleaning cotton 23, increasing the fluidity of the oil and helping to remove the oil. Furthermore, a storage box 26 is set on the main unit 1. During long-term treatment, the protective mirror 11 and cleaning cotton 23 and other parts become heavily contaminated. To avoid repeated contamination of the treated skin and subsequent infection, the user can hold the protective mirror 11 or press the box 18 and place it vertically into the storage box 26 as needed or according to the treatment duration. The mounting ring 16 and cleaning rod 22 and other parts come into contact with and squeeze the lifting plate 27. The lifting plate 27 descends and squeezes the liquid reservoir 28, which squeezes out the disinfectant stored inside. The disinfectant is then sprayed through the holes on the lifting plate 27 onto the cleaning rod 22 and mounting ring 16 and other parts, achieving the purpose of spray cleaning and disinfection. This improves the hygiene of the instruments during long-term treatment, reduces the probability of infection, and improves the therapeutic effect of the treatment device on the skin. The sprayed disinfectant water collects at the top of the lifting plate 27 and is discharged through the water outlet on the side wall of the storage box 26. The water outlet is controlled by a signal switch. When the mounting ring 16 is not removed from the storage box 26 or the lifting plate 27 is not reset, the water outlet is in the closed state. After the disinfectant water is sprayed, it collects at the top of the lifting plate 27, which soaks and disinfects parts such as the cleaning cotton 23. This allows the disinfectant water to reach hard-to-reach and disinfect areas, improves the hygiene of the instrument during long-term treatment, reduces the probability of infection, and improves the therapeutic effect of the treatment instrument on the skin. During the spray soaking process, the user controls the cleaning rod 22 to rotate by pressing the switch 19 to clean and disinfect, which speeds up the removal of sweat and oil on the cleaning rod 22, improves cleaning efficiency, shortens the treatment interval, and thus improves the treatment efficiency of large areas of skin; in addition, the cleaning cotton 23 is subjected to friction and scraping by the cleaning block 25 during rotation, which increases the cleaning force and further improves the cleaning efficiency. Furthermore, after cleaning, the user controls the cleaning rod 22 to remain stationary on top of the storage box 26, and then controls the cleaning rod 22 to rotate. The cleaning rod 22 drives the cleaning cotton 23 to rotate past the cleaning block 25. Through the squeezing of the cleaning block 25 and the suction of the air extraction part of the pressing box 18, combined with the volatile properties of the disinfectant, the drying speed of the cleaning cotton 23 is accelerated, the treatment interval is shortened, and the treatment efficiency of large areas of skin is improved. In addition, during the treatment of large areas of skin, the cleaning cotton 23 and the cleaning rod 22 are washed and soaked, and the alcohol in the disinfectant evaporates and takes away heat. In addition, the air extraction accelerates the air flow and cools down the temperature of the cleaning cotton 23 and the cleaning rod 22. When in contact with the skin, the degree of skin heat during long-term treatment is reduced, and the treatment effect of the device on the skin is improved. During cleaning, the mounting ring 16 slides on the skin, while the scraping blade 29 scrapes away the oil and sweat from the periphery of the mounting ring 16, thus reducing the cleaning pressure of the cleaning cotton 23 and improving cleaning efficiency. During treatment, the mounting ring 16 no longer slides on the skin, but instead makes repeated vertical contact with the skin surface to prevent sliding and friction on the wounds on the skin. The scraping blade 29 is connected to the periphery of the mounting ring 16 by a spring, and can gently contact the skin. Its lifting and lowering motion helps the user determine the degree of verticality to the skin, or helps the user improve the perpendicularity of the handpiece to the skin, thereby improving the effect of laser treatment. Pressing the suction point of the cleaning block 25 with the pressure box 18 draws air from the cleaning cotton 23 to clean and cool it. This contact cooling and air cooling effect is applied to the treated skin, avoiding severe burning and stinging sensations caused by prolonged treatment, thus improving the comfort of the skin treatment. The uncontacted cleaning block 25 and suction point are directed at the skin below to draw air. Outside air passes through the filter cotton 3 in the scraping blade 29. The filter cotton 3 filters dust from the air, and the filter plate 31 absorbs moisture from the air, improving the cleanliness of the air in contact with the wound. Furthermore, the filter plate 31 guides the air that has passed through the filter cotton 3 towards the skin and then draws it away, further improving the skin cooling effect and enhancing the comfort of the skin treatment. When the rotating ring 21 rotates clockwise, its wavy edge contacts the spray block 34. The spray block 34 oscillates due to the influence of the torsion spring hinge, and the wavy edge of the rotating ring 21 passes over the spray block 34. After treatment, the rotating ring 21 can be reversed immediately by the drive motor 2. The wavy edge of the rotating ring 21 contacts the spray block 34 in the opposite direction. Since the spray block 34 is connected by a one-way torsion spring, the spray block 34 is squeezed by the rotating ring 21 and slides into the spray tube 32, squeezing the storage sac 33. The protective agent in the storage sac 33 is squeezed out from the spray nozzle of the spray tube 32 and sprayed onto the skin wound. The protective agent adheres to the skin surface after contacting the wound with the airflow, forming a protective layer, which protects the skin wound in time, reduces the risk of infection, and improves the treatment effect. When the storage sac 33 is restored, the external storage tank delivers protective agent to the storage sac 33 in time to replenish it.

[0021] Example 3: Based on Embodiment 2, a sliding piece 35 is slidably connected to the cleaning rod 22 by a spring, and the sliding piece 35 slides toward the inside of the cleaning rod 22, with the sliding piece 35 located between the cleaning rod 22 and the cleaning cotton 23; The sliding piece 35 has extension strips 36 on both sides, and the extension strips 36 are arc-shaped and located between adjacent sliding pieces 35; The cleaning block 25 is slidably connected to the squeezing block 37 by a spring. The squeezing block 37 extends out of the surface of the cleaning block 25 in an arc shape. A disinfection bladder 38 is provided between the squeezing block 37 and the cleaning block 25. The disinfection bladder 38 is connected to the disinfection conveying device configured in the main unit 1. The evenly distributed holes on the squeezing block 37 are connected to the disinfection bladder 38. Specific workflow: By setting the sliding plate 35, during the rotation of the cleaning rod 22 in contact with the skin, the sliding plate 35, through the squeezing force provided by the spring, drives the cleaning cotton 23 to press against the skin surface, so that the cleaning cotton 23 can adaptively conform to the concave and convex arcs and curved contours of the skin surface. Combined with the pre-scraping action of the outer oil scraping plate 29, it peels off the pollutants on the skin surface layer by layer, thereby improving the wiping and cleaning effect of the skin. In addition, the sliding plate 35 drives the extension strip 36 to contact the cleaning cotton 23. The extension strip 36 is located on both sides of the sliding plate 35, which can increase the area of ​​cleaning movement driven by the sliding plate 35. Since the extension strip 36 is made of flexible material, the extension strip 36 can drive the cleaning cotton 23 to better conform to the skin, avoiding the extension strip 36 being too hard and causing the outer surface of the cleaning cotton 23 to have sharp edges, resulting in the discomfort of hard contact. The cleaning cotton 23 rotates, and the squeezing block 37 contacts the cleaning cotton 23. The sliding plate 35 contacts the squeezing block 37 through the cleaning cotton 23. Both retract, with the sliding plate 35 retracting into the cleaning rod 22 and the squeezing block 37 retracting into the cleaning block 25 and squeezing the disinfection sac 38. The disinfectant in the disinfection sac 38 seeps out through the evenly distributed holes on the surface of the squeezing block 37, evenly wetting and disinfecting the cleaning cotton 23. Then, the cleaning cotton 23 and the sliding plate 35 return to their original positions after passing the first squeezing block 37, causing the cleaning cotton 23 to expand and absorb the disinfectant. The disinfectant penetrates deep into the cleaning cotton 23 for disinfection. Subsequently, the cleaning cotton 23 and the sliding plate 35 contact the second squeezing block 37. The squeezing of the cleaning cotton 23 squeezes out the disinfectant, along with sweat and oil, forming a repeated disinfection process where the cleaning cotton 23 absorbs and squeezes out the disinfectant, improving the deep disinfection effect of the cleaning cotton 23 and thus improving the hygiene of the treatment. The squeezed disinfectant flows into the suction part of the pressing box 18 and is then pumped out.

[0022] Example 4: Based on Embodiment 3, the cleaning block 25 is provided with rollers 39 on both sides, and the rollers 39 contact the extension strip 36 through the cleaning cotton 23; The extrusion block 37 is located between adjacent rollers 39, and the extrusion block 37 is provided with protrusions 4. The cleaning cotton 23 is annular and is connected and distributed along the axial direction of the cleaning rod 22. The protrusions 4 are inserted into the gaps of the cleaning cotton 23. Specific workflow: By setting rollers 39, the cleaning block 25 contacts the sliding plate 35 and the extension strip 36 through the rollers 39. The rolling action of the rollers 39 reduces the friction generated when the cleaning cotton 23 is squeezed, avoiding damage to the cleaning cotton 23. Furthermore, the rolling action prevents impurities on the cleaning cotton 23 from being scraped to one side of the cleaning block 25. The rollers 39 roll over the impurities on the surface of the cleaning cotton 23, and the cleaning cotton 23 can intactly carry the impurities close to the air extraction part of the pressing box 18, so that the impurities can be smoothly extracted and the residue can be reduced. By setting protrusions 4 and inserting them into the gaps between the cleaning cotton 23, since the cleaning cotton 23 is circular and connected along the axial direction of the cleaning rod 22, when the cleaning rod 22 contacts the curved skin such as the shoulders and back, or the area of ​​depressed acne scars and skin folds, each segment of the circular cleaning cotton 23 can independently stretch and contract with the sliding plate 35 and the curved extension strip 36. Each circular ring deforms individually to adapt to the local contour, and there will be no phenomenon of long strips of cleaning cotton 23 pulling each other or being suspended in place. It can penetrate deep into areas such as scar depressions and nasal grooves, avoiding large areas of cotton material arching up and causing cleaning blind spots, ensuring that oil and sweat are fully wiped and absorbed, improving the skin cleaning effect, and thus improving the skin treatment effect. When the cleaning cotton 23 contacts the protrusions 4, the protrusions 4 are inserted between the cleaning cotton 23, removing impurities in the gaps and improving the cleanliness of the cleaning cotton 23. In addition, the protrusions 4 can also penetrate deep into the cleaning cotton 23 to spray disinfectant, so that the cleaning cotton 23 can be fully moistened in a short time, improving the cleaning and disinfection efficiency.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbon dioxide fractional laser therapy device, comprising a main unit (1), a carbon dioxide laser module, an air pump, a circulating cooling module, a light guide arm, and a fractional scanning handpiece; characterized in that, Also includes: A protective mirror (11) is tubular and threaded to the end of a dot matrix scanning handpiece. A mounting frame (12) is provided on one side wall of the protective mirror (11). A magnifying glass (13) is installed inside the mounting frame (12). An air extraction pipe (14) is provided on the inner wall of the protective mirror (11). A ventilation channel is provided in the mounting frame (12) between the bottom of the protective mirror (11) and the magnifying glass (13). The air extraction pipe (14) is connected to an air pump through a hose. A mounting groove is provided on the top of the protective mirror (11). A wiping cotton (15) is provided in the mounting groove. The mounting ring (16) is installed on the bottom edge of the protective mirror (11). A skin detector (17) is provided on the side wall of the mounting ring (16) and faces the skin surface. A pressing box (18) is installed on one side of the mounting ring (16). A pressing switch (19) is provided on the outside of the pressing box (18), and a drive motor (2) is provided inside it. A rotating ring (21) is rotatably connected to the mounting ring (16). The rotating ring (21) is connected to the drive motor (2). A cleaning rod (22) is distributed in a ring around the bottom of the rotating ring (21) around the protective mirror (11). A cleaning cotton (23) is provided on the outer periphery of the cleaning rod (22).

2. The carbon dioxide fractional laser therapy device according to claim 1, characterized in that: The mounting ring (16) is provided with a toothed ring (24), which is connected to one end of the cleaning rod (22). The bottom of the pressing box (18) is connected to the edge of the mounting ring (16). The part where the pressing box (18) is connected to the mounting ring (16) is inclined. Cleaning blocks (25) are evenly provided on the inner wall of the inclined surface of the pressing box (18). The cleaning blocks (25) are distributed in a ring around the protective mirror (11), and the bottom arc surface of the cleaning blocks (25) is attached to the cleaning cotton (23). The air pump is connected to the air extraction end via a hose, and the air extraction part of the pressing box (18) is located between adjacent cleaning blocks (25); the main unit (1) is provided with a storage box (26), the protective mirror (11) is placed inside the storage box (26), the bottom of the storage box (26) is slidably connected to a lifting plate (27) via a spring, a liquid storage bladder (28) is provided between the bottom of the lifting plate (27) and the storage box (26), the liquid storage bladder (28) is connected to the hole on the lifting plate (27), and a water outlet is provided on the side wall of the storage box (26).

3. The carbon dioxide fractional laser therapy device according to claim 2, characterized in that: The mounting ring (16) has an oil scraper (29) on its outer periphery. The oil scraper (29) has a frame structure, and the top of the oil scraper (29) is made of hard material. It is connected to the mounting ring (16) by spring lifting.

4. The carbon dioxide fractional laser therapy device according to claim 3, characterized in that: The frame of the scraper (29) is provided with a filter cotton (3), and the filter cotton (3) is provided with a filter sheet (31). The filter sheet (31) is tilted towards the skin and a desiccant is provided on the filter sheet (31).

5. A carbon dioxide fractional laser therapy device according to claim 4, characterized in that: The oil scraper (29) is provided with a spray pipe (32), which is located inside the filter cotton (3). The spray pipe (32) is provided with a storage bladder (33), and a spray block (34) is slidably connected to one side of the spray pipe (32). The end and middle of the spray block (34) are hinged by a torsion spring. The outer periphery of the rotating ring (21) is wavy and contacts the spray block (34). The inlet of the storage bladder (33) is connected to an external storage tank, and the outlet is connected to the nozzle of the spray pipe (32).

6. A carbon dioxide fractional laser therapy device according to claim 5, characterized in that: A sliding piece (35) is slidably connected to the cleaning rod (22) by a spring, and the sliding piece (35) slides toward the inside of the cleaning rod (22), and the sliding piece (35) is located between the cleaning rod (22) and the cleaning cotton (23).

7. A carbon dioxide fractional laser therapy device according to claim 6, characterized in that: The sliding piece (35) has extension strips (36) on both sides, and the extension strips (36) are arc-shaped and located between adjacent sliding pieces (35).

8. A carbon dioxide fractional laser therapy device according to claim 7, characterized in that: The cleaning block (25) is slidably connected to the squeezing block (37) by a spring. The surface of the squeezing block (37) extending out of the cleaning block (25) is arc-shaped. A disinfection bladder (38) is provided between the squeezing block (37) and the cleaning block (25). The disinfection bladder (38) is connected to the disinfection delivery device configured in the host (1). The holes evenly distributed on the squeezing block (37) are connected to the disinfection bladder (38).

9. A carbon dioxide fractional laser therapy device according to claim 8, characterized in that: The cleaning block (25) has rollers (39) on both sides, and the rollers (39) contact the extension strip (36) through the cleaning cotton (23).

10. A carbon dioxide fractional laser therapy device according to claim 9, characterized in that: The extrusion block (37) is located between adjacent rollers (39), and the extrusion block (37) is provided with a protrusion (4). The cleaning cotton (23) is annular and connected and distributed along the axial direction of the cleaning rod (22). The protrusion (4) is inserted into the gap of the cleaning cotton (23).

Images