Laser medical cosmetology device

Abstract

A laser medical beauty device relates to the technical field of medical beauty equipment. The laser medical cosmetology device comprises a fixing piece, a laser connected in the fixing piece, a refrigeration induction structure connected to one side of the fixing piece, a photoelectric detector connected in the refrigeration induction structure and a controller electrically connected with the refrigeration induction structure and the photoelectric detector. The photoelectric detector is configured to emit a detection light beam to the human skin and receive a reflection signal reflected by the human skin; the refrigeration sensing structure is configured to sense a capacitance signal generated after the refrigeration sensing structure is in contact with human skin; the controller is configured to control the laser to emit a laser beam when receiving the reflected signal and the capacitance signal. The laser medical cosmetology device can avoid false triggering of the laser switch, so that the starting accuracy and reliability of the laser medical cosmetology device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical cosmetic equipment, and in particular to a laser medical cosmetic device. Background Art

[0002] With the improvement of living standards, more and more people begin to pay attention to beauty and skin care, which makes laser application technology represented by laser hair removal widely used in the field of medical cosmetology. Laser medical cosmetology device is an instrument that uses the principle of selective thermodynamics to remove excess hair on the user's skin. The laser is emitted through the head of the laser medical cosmetology device. The laser passes through the surface of the skin and reaches the hair follicles at the root of the hair. The light energy is selectively absorbed by the melanin of the hair follicles and converted into heat energy that destroys the hair follicle tissue, thereby destroying the activity of the hair follicles, thereby making the hair lose its regeneration ability, and thus achieving the effect of permanent hair removal.

[0003] With the continuous advancement of laser hair removal technology and people's pursuit of experience, people are no longer satisfied with the basic demand of hair removal, but have turned to the pursuit of a safer and more comfortable hair removal experience. However, when the current laser medical beauty device is working, the switch control of the laser mainly relies on the switch interface of the device for manual control, and lacks an automatic control system for the laser switch. As a result, the laser of the laser medical beauty device has a certain delay in turning on and off, resulting in poor safety. Therefore, how to improve the timeliness and accuracy of the laser switch of the laser medical beauty device to improve the safety performance of laser hair removal is a technical problem currently faced. Utility Model Content

[0004] The purpose of the utility model is to provide a laser medical cosmetic device, which can avoid false triggering of a laser switch, thereby improving the start-up accuracy and reliability of the laser medical cosmetic device.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In one aspect of the utility model, a laser medical cosmetic device is provided, which includes a fixing part, a laser connected to the fixing part, a cooling induction structure connected to one side of the fixing part, a photodetector connected to the cooling induction structure, and a controller electrically connected to the cooling induction structure and the photodetector respectively; the photodetector is configured to emit a detection beam to human skin and receive a reflection signal reflected by human skin; the cooling induction structure is configured to sense a capacitance signal generated after it contacts human skin; and the controller is configured to control the laser to emit a laser beam when receiving the reflection signal and the capacitance signal. The laser medical cosmetic device can avoid false triggering of the laser switch, thereby improving the accuracy and reliability of the laser medical cosmetic device.

[0007] Optionally, the laser medical cosmetic device further comprises a circuit board, and the photodetector comprises at least one, and the photodetector is electrically connected to the circuit board. The arrangement of the circuit board can facilitate the connection of the photodetector, simplify the circuit structure, and make the structure of the laser medical cosmetic device of the present application more concise.

[0008] Optionally, the cooling induction structure includes a cooling head and a capacitive detector electrically connected to the cooling head; the capacitive detector is arranged on a circuit board and electrically connected to a controller, and is used to detect a capacitive signal generated by the cooling head after contacting human skin and send it to the controller. In this way, the present application can improve the user's skin feeling experience by contacting the cooling head with human skin; by contacting the cooling head with human skin, the cooling head can be used as a capacitive sensing element, simplifying the structure of the laser medical beauty device.

[0009] Optionally, the cooling head has an action surface and a treatment surface, the detection beam emitted by the photodetector is emitted from the light emitting area of ​​the action surface, and the laser beam emitted by the laser is emitted from the treatment surface; the photodetector includes two, and the orthographic projections of the two photodetectors on the cooling head are located on the action surface; or, the photodetector includes multiple, and the orthographic projections of the multiple photodetectors on the cooling head are evenly distributed on the action surface. The photodetector and the capacitive sensing element are respectively arranged on the action surface, which can prevent the photodetector and the capacitive sensing element from affecting the normal light emission of the laser beam; by arranging two or more photodetectors, the accuracy of the photoelectric detection of the laser medical cosmetic device can be improved.

[0010] Optionally, the cooling induction structure includes a cooling head connected to one side of the fixing part, a capacitive induction part connected to the cooling head, and a capacitive detector electrically connected to the capacitive induction part; the capacitive detector is arranged on the circuit board and electrically connected to the controller, and is used to detect the capacitive signal generated by the capacitive induction part after contacting the human skin and send it to the controller. That is, the present application can also use a separately arranged capacitive induction part to contact the human skin, and detect the capacitive signal generated by the two through the capacitive detector, which is another implementation method different from using the cooling head as the capacitive induction part.

[0011] Optionally, the cooling head has an action surface and a treatment surface, the detection beam emitted by the photodetector is emitted from the action surface, and the laser beam emitted by the laser is emitted from the treatment surface; the capacitive sensing element and the photodetector are respectively included in one, and the orthographic projections of the capacitive sensing element and the photodetector on the cooling head are respectively located on the action surface; or, the capacitive sensing element is included in one, the photodetector is included in two, and the orthographic projections of the two photodetectors and the capacitive sensing element on the cooling head are respectively located on the action surface. The photodetector and the capacitive sensing element are respectively arranged on the action surface, so as to avoid the photodetector and the capacitive sensing element from affecting the normal light emission of the laser beam.

[0012] Optionally, the capacitive sensing element is made of a conductive material, so that the capacitive sensing element can cooperate with human skin to facilitate the capacitive detector to detect capacitive signals.

[0013] Optionally, the laser medical cosmetic device further comprises a coating film, which is used to coat the periphery of the capacitive sensing element. The provision of the coating film can physically protect the capacitive sensing element.

[0014] Optionally, the laser medical cosmetic device further includes a filter connected to the light-emitting area of ​​the active surface of the cooling induction structure, the filter is located on the light-emitting path of the photodetector, and the filter is used to filter out stray light. The setting of the filter can filter out stray light, avoid interference of ambient light on the photodetector, and can achieve the effect of sealing and dustproofing the photodetector.

[0015] Optionally, the refrigeration induction structure and the fixing member are connected by magnetic attraction or by a hinge, so that the refrigeration induction structure and the fixing member can be easily assembled and disassembled.

[0016] The beneficial effects of the utility model include:

[0017] The laser medical cosmetic device provided in the present application is equipped with a photoelectric detector and a cooling sensing structure at the same time. In this way, the laser will not be started until the controller simultaneously receives the reflection signal sent by the photoelectric detector and the capacitance signal sent by the cooling sensing structure. Under this dual judgment method of capacitance sensing and photoelectric detection, the accuracy of contact judgment of the laser medical cosmetic device (judging whether human skin is in contact with the active surface of the laser medical cosmetic device) can be improved, thereby improving the accuracy and reliability of laser startup and the safety of the user, and avoiding false triggering of the laser medical cosmetic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 One of the structural schematic diagrams of the laser medical cosmetic device provided in the embodiment of the utility model;

[0020] Figure 2 The second structural schematic diagram of the laser medical cosmetic device provided by the embodiment of the utility model;

[0021] Figure 3 The third structural diagram of the laser medical cosmetic device provided by the embodiment of the utility model;

[0022] Figure 4 One of the logic control block diagrams of the laser medical cosmetic device provided by the embodiment of the utility model;

[0023] Figure 5 This is the second logical control block diagram of the laser medical cosmetic device provided in the embodiment of the utility model.

[0024] Icons: 10-fixing parts; 11-semiconductor refrigerator; 12-magnetic head; 13-water inlet connector; 14-water block; 20-laser; 30-cooling induction structure; 31-cooling head; 311-active surface; 312-treatment surface; 32-capacitive sensing element; 40-photodetector; 50-controller; 60-circuit board; 70-coating film; 80-filter; 91-wire; 92-plug; 93-cable assembly; 94-capacitive detector. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0029] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Please refer to Figure 1 and Figure 4 This embodiment provides a laser medical cosmetic device, which includes a fixing part 10, a laser 20 connected to the fixing part 10, a cooling induction structure 30 connected to one side of the fixing part 10, a photodetector 40 connected to the cooling induction structure 30, and a controller 50 electrically connected to the cooling induction structure 30 and the photodetector 40 respectively; the photodetector 40 is configured to emit a detection beam to human skin and receive a reflection signal reflected back by human skin; the cooling induction structure 30 is configured to sense a capacitance signal generated after it contacts human skin; and the controller 50 is configured to control the laser 20 to emit a laser beam when receiving the reflection signal and the capacitance signal. The laser medical cosmetic device can avoid the false triggering of the laser 20 switch, thereby improving the start-up accuracy and reliability of the laser medical cosmetic device.

[0032] It should be noted that the laser medical cosmetic device of the present application can be applied to a variety of projects in the field of medical cosmetics, such as laser hair removal, photorejuvenation, freckle removal, mole removal, teeth whitening, etc.

[0033] Among them, the above-mentioned laser 20 is used to emit a laser beam under the control of the controller 50. The laser beam can be emitted through the treatment surface 312 of the cooling induction structure 30 and incident on the human skin, and pass through the surface of the human skin and reach the hair follicles at the root of the hair. The laser energy is selectively absorbed by the melanin in the hair follicles and converted into heat energy that destroys the hair follicle tissue, which can destroy the activity of the hair follicles, thereby making the hair lose its regeneration ability, and thus achieving the effect of permanent hair removal.

[0034] The laser 20 is disposed in the fixing member 10 and is electrically connected to the controller 50 . It should be understood that a receiving cavity for accommodating the laser 20 should be provided in the fixing member 10 .

[0035] The treatment surface 312 of the above-mentioned cooling induction structure 30 is used to contact with human skin, so that the laser beam can be incident on the human skin from the treatment surface 312. In addition, the cooling induction structure 30 also has a cooling and heat dissipation effect, which can bring a comfortable skin feeling experience to the user.

[0036] The cooling effect of the cooling induction structure 30 of the present application can be achieved by cooling the semiconductor refrigerator 11 of the fixing part 10. After the semiconductor refrigerator 11 is powered on, a cold surface and a hot surface will be formed. The cold surface (when the fixing part 10 is connected to the cooling head 31 by magnetic attraction, the cold surface is connected to the cooling head 31 through the magnetic attraction head 12) to achieve the effect of cooling the cooling head 31; the hot surface is connected to the water flow block 14, and the water flow block 14 passes water through the water inlet joint 13, and the heat is taken away by water cooling.

[0037] It should be noted that when there is a magnetic head 12 , the semiconductor refrigerator 11 is between the magnetic head 12 and the water block 14 , the cold surface of the semiconductor refrigerator 11 is connected to the cooling head 31 through the magnetic head 12 , and the hot surface is connected to the water block 14 .

[0038] In addition, it should be noted that the water introduced through the water inlet connector 13 can also be used to cool down and dissipate heat for the laser 20 .

[0039] In addition, the cooling induction structure 30 also has the function of detecting the capacitance signal generated after contacting with human skin, that is, the cooling induction structure 30 can detect the capacitance signal after contacting with human skin and send it to the controller 50. It should be noted that when the human skin contacts the cooling induction structure 30, the capacitance increases, and when the contact is broken, the capacitance decreases until it is zero. The capacitance change amount of the human skin in the process of contact or non-contact with the cooling induction structure 30 can be converted into a capacitance signal and transmitted to the controller 50.

[0040] The photodetector 40 is connected inside the cooling induction structure 30 , and the photodetector 40 and the cooling induction structure 30 are electrically connected to the controller 50 respectively.

[0041] The photodetector 40 in the laser medical cosmetic device can emit a detection light beam, and can also receive a reflected light beam that is incident on human skin and reflected back by the human skin and send it to the controller 50 in the form of an electrical signal.

[0042] For example, the photodetector 40 may include a transmitting end and a receiving end. The transmitting end can be used to emit a detection light beam and emit it to the human skin through the light emitting area of ​​the active surface 311 of the cooling sensing structure 30. The receiving end is used to receive a reflected light beam reflected back by the human skin and send a reflection signal corresponding to the reflected light beam to the controller 50.

[0043] The controller 50 is electrically connected to the photodetector 40 and the cooling induction structure 30 respectively, and is used to receive the reflection signal of the photodetector 40 and the capacitance signal of the cooling induction structure 30, and control the laser 20 to turn on when the reflection signal and the capacitance signal are received at the same time, so that the laser 20 emits a laser beam. In this way, the laser medical beauty device can perform laser hair removal work normally.

[0044] To summarize, the laser medical cosmetic device provided in the present application includes a fixing part 10, a laser 20 connected to the fixing part 10, a cooling induction structure 30 connected to one side of the fixing part 10, a photodetector 40 connected to the cooling induction structure 30, and a controller 50 electrically connected to the cooling induction structure 30 and the photodetector 40 respectively; the photodetector 40 in the laser medical cosmetic device can emit a detection light beam, and the photodetector 40 can also receive a reflection signal reflected back by human skin and send the reflection signal to the controller 50; the cooling induction structure 30 is used to detect the capacitance signal generated after contacting human skin and send it to the controller 50; the controller 50 is used to control the laser 20 to emit a laser beam when receiving the reflection signal and the capacitance signal. The laser medical cosmetic device provided in the present application is provided with a photoelectric detector 40 and a cooling sensing structure 30 at the same time. Thus, the laser 20 is activated only when the controller 50 simultaneously receives the reflection signal sent by the photoelectric detector 40 and the capacitance signal sent by the cooling sensing structure 30. Under this dual judgment method of capacitance sensing and photoelectric detection, the accuracy of the contact judgment of the laser medical cosmetic device (judging whether human skin is in contact with the active surface 311 of the laser medical cosmetic device) can be improved, thereby improving the accuracy and reliability of the activation of the laser 20 and the safety of the user, and avoiding false triggering of the laser medical cosmetic device.

[0045] Optionally, the laser medical cosmetic device further includes a circuit board 60, the photodetector 40 includes at least one, and the photodetector 40 is electrically connected to the circuit board 60. The circuit board 60 is disposed in the cooling induction structure 30, for example, it can be connected to the inner end surface of the cooling induction structure 30 on one side close to the fixing member 10.

[0046] The circuit board 60 can be fixed to the cooling induction structure 30 by means of screws, adhesives, snap connections or welding. The circuit board 60 can be connected to a plug 92 through a wire 91. The plug 92 can be fixed on a side of the cooling induction structure 30 close to the fixing part 10. The plug 92 can be electrically connected to the controller 50 through a cable assembly 93.

[0047] In this embodiment, the cooling sensing structure 30 can implement capacitance detection in the following two ways:

[0048] In a first feasible implementation, optionally, as Figure 3 and Figure 5 As shown, the cooling induction structure 30 includes a cooling head 31 and a capacitance detector 94 electrically connected to the cooling head 31. The capacitance detector 94 is arranged on the circuit board 60 and electrically connected to the controller 50, and is used to detect the capacitance signal generated by the cooling head 31 after contacting the human skin and send it to the controller 50. At this time, the cooling head 31 can be used for cooling on the one hand, and on the other hand, it is electrically connected to the capacitance detector 94 and used for capacitance sensing. At this time, the cooling head 31 is electrically connected to the capacitance detector 94, and the capacitance detector 94 is used to detect the capacitance signal generated after the treatment surface 312 of the cooling head 31 contacts the human skin and send it to the controller 50.

[0049] Optionally, the cooling head 31 has an active surface 311 and a treatment surface 312 , the detection light beam emitted by the photodetector 40 is emitted from a light emitting area of ​​the active surface 311 , and the laser beam emitted by the laser 20 is emitted from the treatment surface 312 .

[0050] Please refer to Figure 2 and Figure 3 In this embodiment, the action surface 311 is arranged on the periphery of the treatment surface 312, the treatment surface 312 is used to pass the laser beam, and a light emitting area is provided on the action surface 311, and the light emitting area is used to pass the detection beam or the reflection beam.

[0051] It should be noted that the active surface 311 may be a part of the cooling head 31, that is, the active surface 311 and the cooling head 31 are integrally arranged. In this case, the light exit area of ​​the active surface 311 may be a light-transmitting area provided at a position of the active surface corresponding to the photodetector 40 (for example, a light-transmitting hole is provided at this position, or a light-transmitting hole is provided at this position and a light-transmitting material is filled in the light-transmitting hole, or a light-transmitting hole is provided at this position and a corresponding filter 80 is provided in the light-transmitting hole. The scheme of providing the filter 80 will be described in detail below).

[0052] In this case, the distribution of the photodetectors 40 may include at least the following two modes:

[0053] In the first arrangement, the photoelectric detector 40 includes two photoelectric detectors, and the orthographic projections of the two photoelectric detectors 40 on the cooling head 31 are located on the active surface 311, such as Figure 3 As shown. That is, both photodetectors 40 are located on the action surface 311. For example, when the treatment surface 312 is rectangular, the two photodetectors 40 may also be distributed at two diagonal positions of the action surface 311; for another example, when the treatment surface 312 is a symmetrical shape other than a rectangle, the two photodetectors 40 may also be symmetrically distributed on the action surface 311; for another example, when the treatment surface 312 is an asymmetrical shape, the two photodetectors 40 may also be evenly distributed on the action surface 311.

[0054] In the second arrangement, the photodetector 40 includes a plurality of photodetectors, and the orthographic projections of the plurality of photodetectors 40 on the cooling head 31 are uniformly distributed on the action surface 311. The number of the plurality of photodetectors 40 is greater than or equal to 3, and illustratively, the number of the photodetectors 40 may be three, four, or five, etc. That is, when the treatment surface 312 is rectangularly distributed, the number of the photodetectors 40 may be four, and in this case, the four photodetectors 40 may be distributed at the four corners of the action surface 311.

[0055] Of course, the diagonal distribution and uniform distribution of the photoelectric detectors 40 are only examples, and this distribution method can improve the accuracy and reliability of photoelectric detection. In other embodiments, other arrangements can also be selected as needed.

[0056] In a second possible implementation, optionally, as Figure 1 , Figure 2 and Figure 4 As shown, optionally, the cooling induction structure 30 includes a cooling head 31 connected to one side of the fixing member 10, a capacitive induction member 32 connected to the cooling head 31, and a capacitive detector 94 electrically connected to the capacitive induction member 32; the capacitive detector 94 is disposed on the circuit board 60 and electrically connected to the controller 50, and the capacitive detector 94 is used to detect the capacitive signal generated by the capacitive induction member 32 after contacting the human skin and send it to the controller 50.

[0057] At this time, the cooling head 31 can be used for cooling, and the capacitive sensing element 32 is electrically connected to the capacitive detector 94 and used for capacitive sensing. At this time, after the action surface 311 of the cooling head 31 contacts the human skin, the capacitive sensing element 32 can cooperate with the human skin to produce a capacitance change, which is then acquired by the capacitive detector 94 and sent to the controller 50.

[0058] In this implementation, the cooling head 31 also has an action surface 311 and a treatment surface 312. The detection beam emitted by the photodetector 40 is emitted from the action surface 311, and the laser beam emitted by the laser 20 can be emitted from the treatment surface 312. The distribution of the photodetector 40 can include at least the following two methods:

[0059] In the first arrangement, the capacitive sensing element 32 and the photodetector 40 each include one, and the orthographic projections of the capacitive sensing element 32 and the photodetector 40 on the cooling head 31 are respectively located on the active surface 311, such as Figure 2 This distribution mode of the capacitive sensing elements 32 and the photoelectric detectors 40 can not only save the number of the capacitive sensing elements 32 and the photoelectric detectors 40, but also improve the accuracy of contact judgment.

[0060] In the second arrangement, there is one capacitive sensing element 32 and two photodetectors 40. The orthographic projections of the two photodetectors 40 and the capacitive sensing element 32 on the cooling head 31 are respectively located on the active surface 311, and the connecting line of the capacitive sensing element 32 and the two photodetectors 40 forms a triangle.

[0061] The connection line between the capacitive sensing element 32 and the two photodetectors 40 forms a triangle, for example, Figure 1 As shown, when the treatment surface 312 is rectangular, the orthographic projections of the two photodetectors 40 on the action surface 311 may be diagonally distributed, and the orthographic projection of the capacitive sensing element 32 on the action surface 311 may be located at any one of the remaining two corners.

[0062] Furthermore, when the cooling induction structure 30 includes the capacitive induction element 32, the capacitive induction element 32 is made of a conductive material. Optionally, the capacitive induction element 32 can be a probe, a metal strip, a metal sheet, or the like.

[0063] To avoid mechanical damage to the capacitive sensing element 32 or the influence of the external environment, the laser medical cosmetic device optionally further includes a coating film 70, which is used to coat the outer periphery of the capacitive sensing element 32. It should be noted that the coating film 70 should be made of a material that can protect the capacitive sensing element 32 and avoid affecting the normal capacitive sensing of the capacitive sensing element 32.

[0064] In addition, in order to prevent ambient light from interfering with the photodetector 40 and to achieve a dust-proof sealing effect on the photodetector 40, in this embodiment, the laser medical cosmetic device may further include a filter 80 connected to the light-emitting area of ​​the active surface 311 of the cooling induction structure 30, such as Figures 1 to 3 The filter 80 is located on the light output path of the photodetector 40 and is used to filter out stray light.

[0065] The light exiting area may be a light-transmitting hole disposed on the active surface 311 , and the filter 80 is disposed in the light-transmitting hole.

[0066] In addition, in order to facilitate disassembly and assembly, the refrigeration induction structure 30 of the present application can be connected to the fixing member 10 by magnetic attraction or by hinge. Of course, the above magnetic attraction connection and hinge connection are only examples and are not limitations of the present application. In other embodiments, screws, buckles, threads or guide rails can also be used for connection.

[0067] In this embodiment, the cooling head 31 is detachably connected to the fixing member 10, and the cooling head 31 may include a plurality of cooling heads 31. The plurality of cooling heads 31 are respectively used to emit laser spots of different shapes.

[0068] In this way, the user can select a suitable cooling head according to the type of laser spot to be emitted, so that the laser medical beauty device can be suitable for a variety of different application scenarios.

[0069] In addition, it should be noted that, in this embodiment, a light emitting window sheet and a treatment window sheet may be respectively provided at the light emitting area of ​​the action surface 311 and the treatment surface 312 .

[0070] In addition, the area of ​​the above-mentioned action surface 311 can be larger than the area of ​​the treatment surface 312. In this case, correspondingly, the area of ​​the light emitting window piece is also larger than the area of ​​the treatment window piece.

[0071] The above description is only an optional embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

[0072] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

Claims

1. A laser medical cosmetic device, characterized in that: It includes a fixing part, a laser connected to the fixing part, a cooling induction structure connected to one side of the fixing part, a photodetector connected to the cooling induction structure, and a controller electrically connected to the cooling induction structure and the photodetector respectively; The photodetector is configured to emit a detection light beam toward human skin and receive a reflection signal reflected back by the human skin; the cooling induction structure is configured to sense a capacitance signal generated after the cooling induction structure contacts human skin; and the controller is configured to control the laser to emit a laser beam when receiving the reflection signal and the capacitance signal.

2. The laser medical cosmetic device according to claim 1, characterized in that: The laser medical cosmetic device also includes a circuit board, the photodetector includes at least one, and the photodetector is electrically connected to the circuit board.

3. The laser medical cosmetic device according to claim 2, characterized in that: The cooling induction structure includes a cooling head and a capacitance detector electrically connected to the cooling head; the capacitance detector is arranged on the circuit board and electrically connected to the controller, and is used to detect the capacitance signal generated by the cooling head after contacting human skin and send it to the controller.

4. The laser medical cosmetic device according to claim 3, characterized in that: The cooling head has an action surface and a treatment surface, the detection light beam emitted by the photodetector is emitted from a light emitting area of ​​the action surface, and the laser beam emitted by the laser is emitted from the treatment surface; The photoelectric detectors include two, and the orthographic projections of the two photoelectric detectors on the cooling head are located on the active surface; or, the photoelectric detectors include multiple, and the orthographic projections of the multiple photoelectric detectors on the cooling head are evenly distributed on the active surface.

5. The laser medical cosmetic device according to claim 2, characterized in that: The cooling induction structure includes a cooling head connected to one side of the fixing member, a capacitive induction member connected to the cooling head, and a capacitive detector electrically connected to the capacitive induction member; the capacitive detector is arranged on the circuit board and electrically connected to the controller, and is used to detect the capacitive signal generated by the capacitive induction member after contacting human skin and send it to the controller.

6. The laser medical cosmetic device according to claim 5, characterized in that: The cooling head has an action surface and a treatment surface, the detection light beam emitted by the photoelectric detector is emitted from the action surface, and the laser beam emitted by the laser is emitted from the treatment surface; The capacitive sensing element and the photodetector are each included in one, and the orthographic projections of the capacitive sensing element and the photodetector on the cooling head are respectively located on the active surface; or, the capacitive sensing element is included in one, the photodetectors are included in two, and the orthographic projections of the two photodetectors and the capacitive sensing element on the cooling head are respectively located on the active surface.

7. The laser medical cosmetic device according to claim 5, characterized in that: The capacitive sensing element is made of a material with conductive properties.

8. The laser medical cosmetic device according to claim 7, characterized in that: The laser medical cosmetic device further comprises a covering film, and the covering film is used for covering the outer periphery of the capacitive sensing element.

9. The laser medical cosmetic device according to any one of claims 1 to 8, characterized in that: The laser medical cosmetic device also includes a filter connected to the light-emitting area of ​​the active surface of the cooling induction structure. The filter is located on the light-emitting path of the photodetector and is used to filter out stray light.

10. The laser medical cosmetic device according to any one of claims 1 to 8, characterized in that: The refrigeration induction structure and the fixing member are connected magnetically or through a hinge.

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