Femtosecond laser beauty instrument

Abstract

The utility model discloses a femtosecond laser beauty instrument which comprises a machine body, a light guide arm arranged on the machine body and a treatment hand tool installed on the light guide arm and further comprises a femtosecond laser output unit and a water cooling circulation unit which are fixedly arranged on the machine body. The femtosecond laser is accurately transmitted to a treatment area through the light guide arm and the treatment hand tool, the problem that the femtosecond laser is difficult to transmit through an optical fiber is solved, the light guide arm is provided with a plurality of adjusting arm rods connected through rotating joints, the flexibility and adjustability are high, the femtosecond laser can rapidly and uniformly cover the treatment area, blind spots in the treatment process are reduced, and the treatment efficiency is improved. Meanwhile, the cooling circulation unit can control the temperature of the femtosecond laser output unit, the working stability of the whole machine is guaranteed, laser precision reduction caused by temperature changes is reduced, the laser energy threshold value can be increased, and the service life of the whole machine can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cosmetic technology field especially relates to a femtosecond laser cosmetic instrument. BACKGROUND

[0002] With the continuous improvement of people's pursuit of beauty, the beauty industry is developing and innovating. Laser cosmetic technology, as a non-invasive and effective beauty method, has been widely welcomed. Traditional beauty methods such as chemical peeling and grinding may cause certain damage to the skin and have a long recovery time.

[0003] Femtosecond laser, as a new type of laser technology, has unique advantages in the field of beauty due to its high energy density and accuracy. Femtosecond laser has extremely short pulse width and can accurately process skin tissue in a very short time, reducing thermal damage and improving treatment safety. Femtosecond laser can accurately control energy density and is suitable for different skin types and beauty needs.

[0004] Consumers have an increasing demand for fast and non-invasive beauty solutions. However, traditional fiber-optic beauty instruments have low laser energy threshold, high cost, heavy weight, and inconvenient adjustment, which affects treatment effect and overall treatment efficiency. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model provides a femtosecond laser cosmetic instrument with high stability and treatment efficiency.

[0006] To achieve the above purpose, the utility model realizes through the following technical scheme.

[0007] The application provides a femtosecond laser cosmetic instrument, which comprises a machine body, a light guide arm arranged on the machine body, and a treatment hand tool mounted on the light guide arm, further comprising a femtosecond laser output unit and a cooling circulation unit fixedly arranged on the machine body.

[0008] The light guide arm comprises a plurality of adjustment arm rods connected in sequence through rotating joints, and a guide mirror is fixedly arranged between adjacent two adjustment arm rods at the position of the rotating joint.

[0009] The femtosecond laser output unit comprises a femtosecond laser electric control box, a laser guide shaping module, and a reflection adjusting mechanism. The laser guide shaping module is connected with the femtosecond laser electric control box through an optical fiber, and can output the shaped femtosecond laser from the femtosecond laser electric control box to the reflection adjusting mechanism. The reflection adjusting mechanism is used for adjusting the angle of the femtosecond laser output by the laser guide shaping module to realize the input of the femtosecond laser to the light guide arm.

[0010] The cooling circulation unit is used for heat dissipation of the femtosecond laser output unit. The femtosecond laser input to the light guide arm can be output to the treatment handpiece under the reflection of multiple guide mirrors, and then output to the target area by the treatment handpiece.

[0011] Further specifying, in the aforementioned femtosecond laser beauty device, the femtosecond laser electrical control box includes an electrical control module and a mold-locking seed source and a pulse width amplification module respectively coupled and connected to the electrical control module;

[0012] The mode-locked seed source is used to output femtosecond pulses, and the pulse width amplification module includes a pulse width extender, a pulse width preamplifier, a pulse width main amplifier, and a pulse width compressor.

[0013] The femtosecond pulses output from the mode-locked seed source pass sequentially through a pulse width expander, a pulse width preamplifier, a pulse width main amplifier, and a pulse width compressor. The electrical control module can inject pump light into the pulse width amplification module through a pump signal combiner to amplify the power and energy of the femtosecond laser.

[0014] Further specifying, in the aforementioned femtosecond laser beauty device, the reflection adjustment mechanism includes a coupling mirror capable of adjusting the angle relative to the reflection adjustment mechanism and the light guide arm.

[0015] Further specifying, in the aforementioned femtosecond laser beauty device, when the adjusting arm rotates via the rotating joint, the relative angle between adjacent guide mirrors remains unchanged.

[0016] Further specifying, in the aforementioned femtosecond laser beauty device, two adjacent adjustment arms are perpendicular, and the incident angle of the pulsed laser on the guide mirror is set to 45°.

[0017] Further specifying, in the aforementioned femtosecond laser beauty device, the treatment handpiece includes a handpiece body connected to a light guide arm and a galvanometer, a reflector, and a field mirror disposed within the handpiece body;

[0018] The galvanometer reflector is located within the main body of the handpiece. The femtosecond laser output by the light guide arm can be reflected by the galvanometer reflector to the field mirror and then output to the target area by the field mirror.

[0019] Further specifying, in the aforementioned femtosecond laser beauty device, multiple galvanometer reflectors are provided within the main body of the handpiece, and the incident angle of the pulsed laser on the galvanometer reflector is set to 45°.

[0020] Further specifying, in the aforementioned femtosecond laser beauty device, the treatment handpiece also includes a galvanometer motor fixedly disposed within the handpiece body and connected to the galvanometer reflector;

[0021] The electrical control module of the femtosecond laser control box is connected to the treatment handpiece via a cable.

[0022] Further specifying, in the aforementioned femtosecond laser beauty device, the cooling circulation unit includes a water tank and a water pump fixedly mounted on the device body;

[0023] The water pump's inlet is connected to the water tank, and its outlet is connected to the femtosecond laser control box via a water pipe. The femtosecond laser control box and the laser guiding and shaping module are connected via a water pipe, and the laser guiding and shaping module is connected to the water tank via a water pipe.

[0024] The water pump can output the coolant in the water tank to the femtosecond laser output unit. The coolant output by the water pump flows back to the water tank after passing through the femtosecond laser control box and the laser guiding and shaping module to form a cooling water circulation path.

[0025] Furthermore, in the aforementioned femtosecond laser beauty device, the cooling circulation unit further includes a temperature sensor and a temperature control component;

[0026] The temperature sensor is used to monitor the temperature of the coolant in the cooling circulation circuit, and the temperature control component is used to control the temperature of the coolant in the cooling circulation circuit.

[0027] This utility model has at least the following beneficial effects:

[0028] The femtosecond laser unit outputs the femtosecond laser through the light guide arm and treatment handpiece, and precisely transmits the femtosecond laser to the treatment area via the light guide arm and treatment handpiece. This overcomes the problem of femtosecond lasers being difficult to transmit through optical fibers. The light guide arm has multiple adjustable arms connected by rotating joints, which are highly flexible and adjustable. It can quickly and evenly cover the treatment area with femtosecond laser, reduce blind spots during treatment, and improve treatment accuracy and adjustment efficiency. At the same time, the cooling circulation unit can achieve temperature control of the femtosecond laser output unit, ensuring the working stability of the whole machine, reducing the reduction in laser accuracy caused by temperature changes, which is conducive to improving the laser energy threshold and extending the service life of the whole machine. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the femtosecond laser beauty device according to an embodiment of this application;

[0030] Figure 2 This is a simplified schematic diagram of the structure of the femtosecond laser beauty device according to an embodiment of this application.

[0031] Figure Labels

[0032] Body-100, Light Guide Arm-210, Adjustable Arm-211, Guide Reflector-212, Treatment Handpiece-220, Handpiece Body-221, Galvanometer Reflector-222, Field Lens-223, Roller Assembly-300, Cooling Circulation Unit-400, Cooling Circulation Water Circuit-460, Femtosecond Laser Electrical Control Box-510, Electrical Control Module-511, Mold Locking Seed Source-512, Pulse Width Expander-513, Pulse Width Preamplifier-514, Pulse Width Main Amplifier-515, Pulse Width Compressor-516, Laser Guiding and Shaping Module-520, Coupler Reflector-531. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0034] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0035] The femtosecond laser beauty device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0036] like Figure 1 , Figure 2 As shown, this application provides a femtosecond laser beauty device, including a body 100, a light guide arm 210 disposed on the body 100, and a treatment handpiece 220 mounted on the light guide arm 210. It also includes a femtosecond laser output unit and a cooling circulation unit 400 fixedly disposed on the body 100.

[0037] The light guide arm 210 includes multiple adjusting arms 211 connected in sequence via rotating joints, and a guide mirror 212 is fixedly provided between two adjacent adjusting arms 211 at the position of the rotating joint.

[0038] The femtosecond laser output unit includes a femtosecond laser control box 510, a laser guiding and shaping module 520, and a reflection adjustment mechanism. The femtosecond laser control box 510 is used to output femtosecond laser. The laser guiding and shaping module 520 can shape the femtosecond laser output from the femtosecond laser control box 510 and output it to the reflection adjustment mechanism. The reflection adjustment mechanism is used to adjust the angle of the femtosecond laser output by the laser guiding and shaping module 520 to achieve femtosecond laser input to the guide arm 210.

[0039] The cooling circulation unit 400 includes a cooling circulation water channel 460. The femtosecond laser control box 510 and the laser guidance and shaping module 520 are connected by optical fiber and located on the cooling circulation water channel 460. The femtosecond laser input to the light guide arm 210 can be output to the treatment handpiece 220 under the reflection of multiple guide mirrors 212.

[0040] In this embodiment, a femtosecond laser beauty device as described above is used. The femtosecond laser is output through the light guide arm 210 and treatment handpiece 220 via the femtosecond laser unit, and the femtosecond laser is precisely transmitted to the treatment area through the light guide arm 210 and treatment handpiece 220. This overcomes the problem that femtosecond lasers are difficult to transmit through optical fibers. The light guide arm 210 has multiple adjustable arms 211 connected by rotating joints, which are highly flexible and adjustable. It can quickly and evenly cover the treatment area with femtosecond laser, reduce blind spots during treatment, and improve treatment accuracy and adjustment efficiency. At the same time, the cooling circulation unit 400 can realize temperature control of the femtosecond laser output unit, ensure the working stability of the whole machine, reduce the reduction of laser accuracy caused by temperature changes, and help improve the laser energy threshold and extend the service life of the whole machine.

[0041] In a preferred embodiment, such as Figure 2 As shown, the femtosecond laser control box 510 includes an electrical control module 511 and a mode-locked seed source 512 and a pulse width amplification module, which are respectively coupled to the electrical control module 511. The mode-locked seed source 512 is used to output femtosecond pulses. The pulse width amplification module includes a pulse width expander 513, a pulse width preamplifier 514, a pulse width main amplifier 515, and a pulse width compressor 516.

[0042] The femtosecond pulses output from the mode-locked seed source 512 pass through the pulse width expander 513, the pulse width preamplifier 514, the pulse width main amplifier 515, and the pulse width compressor 516 in sequence. The electrical control module 511 can inject the pump light into the pulse width amplification module through the pump signal combiner to amplify the power and energy of the femtosecond laser.

[0043] Understandably, the mode-locked seed source 512 can obtain femtosecond pulses with energy in the pJ (picojoule) to nJ (nanojoule) range. The pulse width expander 513 can broaden the femtosecond pulse in the time domain to the ps (picosecond) to ns (nanosecond) range, thereby reducing the peak power of the pulse. The pulse width preamplifier 514 and the pulse width main amplifier 515 work together to obtain single-pulse energy pulses in the nJ (nanojoule) to uJ (microjoule) range when the femtosecond pulse is amplified to the same peak power due to the pulse width broadening. The pulse width compressor 516 can compress the pulse in the final time domain to obtain a pulse with higher peak power. The laser guiding and shaping module 520 can shape the beam output by the pulse width amplification module into a flat-top beam, that is, a beam with uniform peak power distribution, and guide the beam output to the reflection adjustment mechanism.

[0044] In a preferred embodiment, such as Figure 2 As shown, the reflection adjustment mechanism includes a coupling mirror 531 located at the beam output end of the laser guiding and shaping module 520 and capable of adjusting the angle relative to the reflection adjustment mechanism and the light guide arm 210.

[0045] Among them, the coupling mirror 531 can reflect the femtosecond laser output by the reflection adjustment mechanism onto the guide mirror 212 of the light guide arm 210.

[0046] It is understandable that, since the relative positions between the reflection adjustment mechanism and the light guide arm 210 are fixed, the angle at which the femtosecond laser enters the light guide arm 210 can be adjusted by adjusting the angle of the coupling mirror 531, thereby ensuring that the femtosecond laser can be accurately and completely exported through the guide mirror 212.

[0047] In a preferred embodiment, such as Figure 1 , Figure 2 As shown, the light guide arm 210 includes eight adjusting arms 211 connected in sequence through seven rotating joints, and the adjusting arm 211 located at the starting end is rotatably connected to the body 100.

[0048] When the adjusting arm 211 rotates through the rotating joint, the relative angle between adjacent guide mirrors 212 remains unchanged.

[0049] Understandably, the coupling mirror 531 can reflect the femtosecond laser onto the guide mirror 212 at the position of the starting end adjustment arm 211. The pulsed laser entering the light guide arm 210 can be reflected seven times by the seven guide mirrors 212 and then output to the treatment handpiece 220.

[0050] It should be noted that the configuration of the light guide arm 210 is not limited to the one mentioned above. As long as it can achieve laser guidance between the femtosecond laser output unit and the treatment handpiece 220, it can adopt a standardized design, thereby further reducing manufacturing costs and subsequent maintenance and replacement costs.

[0051] In a preferred embodiment, such as Figure 2 As shown, the two adjacent adjusting arms 211 are perpendicular, and the incident angle of the pulsed laser on the guide mirror 212 is set to 45°.

[0052] In a preferred embodiment, such as Figure 1 , Figure 2 As shown, the treatment handpiece 220 includes a handpiece body 221 connected to the light guide arm 210, and a galvanometer reflector 222 and a field mirror 223 disposed within the handpiece body 221.

[0053] Among them, at least one galvanometer reflector 222 is provided in the handpiece body 221, and the femtosecond laser output by the light guide arm 210 can be reflected by the galvanometer reflector 222 to the field mirror 223, and then output to the treatment area by the field mirror 223.

[0054] Understandably, the femtosecond laser beam output by the light guide arm 210 is scanned by the treatment handpiece 220, and can be scanned into a regular shape at the focal plane of the field lens 223 (the contact surface of the area to be treated).

[0055] In a preferred embodiment, such as Figure 2 As shown, two galvanometer reflectors 222 are provided inside the handpiece body 221, and the incident angle of the pulsed laser on the galvanometer reflector 222 is set to 45°.

[0056] The femtosecond laser beam output by the light guide arm 210 can be reflected by one of the galvanometer mirrors 222 to the other galvanometer mirror 222, and then reflected by the second galvanometer mirror 222 to the field mirror 223.

[0057] It is understandable that the number and angle of the galvanometer reflector 222 are not limited to the one mentioned above, as long as they can guide the femtosecond laser beam and output the field mirror 223. This will not be elaborated here.

[0058] In a preferred embodiment, the treatment handpiece 220 further includes a galvanometer motor fixedly disposed within the handpiece body 221 and used for rotating and scanning the galvanometer reflector 222.

[0059] It is understandable that the number of galvanometer motors corresponds to the number of galvanometer reflectors 222. The field lens 223 is fixedly installed inside the handpiece body 221. By controlling the rotation of the galvanometer motors, the galvanometer reflectors 222 can be scanned, thereby focusing the femtosecond laser spot at the focal plane of the field lens 223.

[0060] In a preferred embodiment, the field lens 223 is configured to focus the femtosecond laser spot to 10µm.

[0061] Understandably, the light guide arm 210 integrates a two-dimensional scanning system, further simplifying the overall structure of the beauty device and reducing its weight and cost.

[0062] In a preferred embodiment, the electrical control module 511 of the femtosecond laser control box 510 is connected to the treatment handpiece 220 via a cable. The cable can be configured to extend and be fixed along the outer wall of the light guide arm 210, thereby enabling control of the treatment handpiece 220.

[0063] In a preferred embodiment, the cooling circulation unit 400 includes a water tank and a water pump fixedly mounted on the body 100.

[0064] The water pump's inlet is connected to the water tank, and its outlet is connected to the femtosecond laser control box 510 via a water pipe. The femtosecond laser control box 510 and the laser guiding and shaping module 520 are connected via a water pipe, and the laser guiding and shaping module 520 is connected to the water tank via a water pipe. The cooling circulation water circuit 460 is specifically a circulation between the water tank, the femtosecond laser control box 510, the laser guiding and shaping module 520, and the water pump.

[0065] Understandably, the water pump can output the coolant from the water tank to the femtosecond laser output unit. Specifically, the coolant output by the water pump flows through water pipes through the femtosecond laser control box 510 and the laser guiding and shaping module 520 before returning to the water pump. The cooling water circulation circuit 460 is specifically a circulation circuit between the water tank, the femtosecond laser control box 510, the laser guiding and shaping module 520, and the water pump.

[0066] In a preferred embodiment, the cooling circulation unit 400 further includes a temperature sensor and a temperature control component.

[0067] Among them, the temperature sensor is used to monitor the temperature of the coolant in the cooling circulation water circuit 460, and the temperature control component is used to control the temperature of the coolant in the cooling circulation water circuit 460.

[0068] Understandably, when the temperature sensor detects that the coolant temperature in the cooling circulation circuit 460 is too high, the temperature control component can cool the coolant to ensure the overall stability of the system.

[0069] In a preferred embodiment, the temperature control component includes a semiconductor heat sink disposed on the cooling circulation channel 460.

[0070] In a preferred embodiment, the temperature control assembly further includes a heat exchange fan assembly for dissipating heat from the semiconductor heat sink.

[0071] It is understandable that the heat exchange fan assembly can accelerate the heat exchange efficiency of the semiconductor heat sink, thereby improving the overall temperature control effect of the temperature control component.

[0072] In a preferred embodiment, the fuselage 100 includes a base frame and a housing assembly fixedly disposed on the outer surface of the base frame.

[0073] The femtosecond laser output unit and cooling circulation unit 400 are fixedly mounted on the base frame and located inside the housing assembly, while the light guide arm 210 is located on the side of the body 100 away from the ground.

[0074] In a preferred embodiment, the housing assembly includes a side plate, a rear guard plate, a front guard plate, and a top plate fixedly mounted on the base frame.

[0075] In a preferred embodiment, the substrate frame is configured as a vertical multi-layer structure, with the cooling circulation unit 400 located at the bottom layer of the substrate frame, the femtosecond laser control box 510 located at the middle layer of the substrate frame, and the laser guiding and shaping module 520 and the reflection adjustment mechanism located at the top layer of the substrate frame.

[0076] It is understandable that the cooling circulation units 400 and 500 are arranged longitudinally in order to reduce the overall lateral volume of the device. Their specific arrangement is not limited to the one mentioned above, and will not be elaborated here.

[0077] In a preferred embodiment, such as Figure 1 As shown, a roller assembly 300 is fixedly provided at the bottom of the machine body 100, and the roller assembly 300 is used for the overall movement of the machine body 100.

[0078] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0079] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A femtosecond laser cosmetic instrument, characterized by, The device comprises a machine body, a light guide arm arranged on the machine body, and a treatment hand tool mounted on the light guide arm, and further comprises a femtosecond laser output unit and a cooling circulation unit fixedly arranged on the machine body. The light guide arm comprises a plurality of adjusting arm rods connected in sequence through rotating joints, and a guide mirror is fixedly arranged between adjacent two adjusting arm rods at the position of the rotating joint. The femtosecond laser output unit comprises a femtosecond laser electric control box, a laser guide shaping module, and a reflection adjusting mechanism, the laser guide shaping module is connected with the femtosecond laser electric control box through an optical fiber, and can output the femtosecond laser output by the femtosecond laser electric control box to the reflection adjusting mechanism after shaping, and the reflection adjusting mechanism is used for adjusting the angle of the femtosecond laser output by the laser guide shaping module to realize the input of the femtosecond laser to the light guide arm. The cooling circulation unit is used for heat dissipation of the femtosecond laser output unit, the femtosecond laser input to the light guide arm can be output to the treatment hand tool through the reflection of the plurality of guide mirrors, and then output to the target area by the treatment hand tool.

2. The femtosecond laser cosmetic instrument according to claim 1, characterized in that, The femtosecond laser electric control box comprises an electrical control module, a mode-locked seed source, and a pulse width amplification module coupled with the electrical control module. The mode-locked seed source is used for outputting femtosecond pulses, and the pulse width amplification module comprises a pulse width expander, a pulse width pre-amplifier, a pulse width main amplifier, and a pulse width compressor. The femtosecond pulses output by the mode-locked seed source pass through the pulse width expander, the pulse width pre-amplifier, the pulse width main amplifier, and the pulse width compressor in sequence, and the electrical control module can inject pump light into the pulse width amplification module through a pump signal combiner to realize the power and energy amplification of the femtosecond laser.

3. The femtosecond laser cosmetic instrument according to claim 1 or 2, characterized in that, The reflection adjusting mechanism comprises a coupling mirror capable of adjusting the angle of the light guide arm relative to the reflection adjusting mechanism.

4. The femtosecond laser cosmetic instrument of claim 1, wherein, When the adjusting arm rod rotates through the rotating joint, the relative angle between the adjacent guide mirrors remains unchanged.

5. The femtosecond laser cosmetic instrument according to claim 1 or 4, characterized in that, The adjacent two adjusting arm rods are perpendicular, and the incident angle of the pulsed laser on the guide mirror is set to 45°.

6. The femtosecond laser cosmetic instrument of claim 1, wherein, The treatment hand tool comprises a hand tool main body connected with the light guide arm, and a galvanometer mirror and a field lens arranged in the hand tool main body. The hand tool main body is arranged in the hand tool main body, and the femtosecond laser output by the light guide arm can be reflected to the field lens through the galvanometer mirror and output to the target area by the field lens.

7. The femtosecond laser cosmetic instrument according to claim 6, characterized in that, The hand tool main body is arranged in the hand tool main body, and the femtosecond laser output by the light guide arm can be reflected to the field lens through the galvanometer mirror and output to the target area by the field lens.

8. The femtosecond laser cosmetic instrument of claim 2 or 6, wherein, The treatment hand tool further comprises a galvanometer motor fixedly arranged in the hand tool main body and connected with the galvanometer mirror. The electrical control module of the femtosecond laser electric control box is connected with the treatment hand tool through a cable.

9. The femtosecond laser cosmetic instrument of claim 1 or 2, wherein, The cooling circulation unit comprises a water tank fixedly arranged on the machine body and a water pump. The water inlet end of the water pump is connected with the water tank, the water outlet end is connected with the femtosecond laser electric control box through a water pipe, the femtosecond laser electric control box and the laser guide shaping module are connected through a water pipe, and the laser guide shaping module and the water tank are connected through a water pipe. The water pump can output the coolant in the water tank to the femtosecond laser output unit, and the coolant output by the water pump flows back to the water tank after passing through the femtosecond laser electric control box and the laser guiding and shaping module to form a cooling circulating water path.

10. The femtosecond laser cosmetic instrument of claim 9, wherein, The cooling circulating unit further comprises a temperature sensor and a temperature control assembly. The temperature sensor is used for monitoring the temperature of the coolant in the cooling circulating water path, and the temperature control assembly is used for temperature control of the coolant in the cooling circulating water path.

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