Laser treatment hand tool and laser treatment system

Abstract

The invention provides a laser treatment hand tool and a laser treatment system, and the laser treatment hand tool comprises a light path assembly which comprises a reflector, a beam splitter, a first galvanometer and a second galvanometer; the first galvanometer is configured to rotate around a first direction, and the second galvanometer is configured to rotate around a second direction perpendicular to the first direction; the fixing assembly is used for installing the light path assembly, and the fixing assembly is used for installing the light path assembly; the fixing assembly comprises a fixing frame, and the fixing frame is provided with a containing space, a first channel arranged in a penetrating mode in the first direction, a second channel arranged in a penetrating mode in the second direction and a third channel arranged in a penetrating mode in the first direction and staggered with the first channel. The laser treatment hand tool and the laser treatment system provided by the invention have relatively high laser dot matrix scanning efficiency and can realize relatively uniform laser dot matrix scanning.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a laser therapy handpiece and a laser therapy system. Background Art

[0002] In the laser treatment industry, fractional laser technology mainly uses the interaction mechanism between micro-damage laser and human skin tissue to achieve the effect of skin rejuvenation. The main indications are: skin peeling, improvement of wrinkles, acne scars, enlarged pores, skin rejuvenation, etc. Laser treatment handpieces are the main devices for implementing fractional laser technology. They scan the treatment surface by emitting laser pulses to form an array composed of multiple points (referred to as a dot matrix) to achieve the purpose of treatment. However, most laser treatment handpieces can only complete one point in the dot matrix for each laser pulse emitted, and the scanning efficiency is low, which affects the treatment efficiency. In addition, the existing laser treatment handpieces also have the problem of large laser energy loss, which will affect the treatment effect to a certain extent.

[0003] Therefore, it is desired to provide a laser treatment handpiece with higher scanning efficiency and capable of reducing the loss of laser energy. Summary of the invention

[0004] One of the embodiments of the present application provides a laser treatment hand tool, comprising: an optical path component, the optical path component comprising a reflector, a beam splitter, a first galvanometer and a second galvanometer; the first galvanometer is configured to rotate around a first direction, and the second galvanometer is configured to rotate around a second direction perpendicular to the first direction; a fixing component, the fixing component is used to install the optical path component; the fixing component comprises a fixing frame, the fixing frame has a accommodating space, a first channel extending along the first direction, a second channel extending along the second direction, and a third channel extending along the first direction and offset from the first channel; wherein the reflector The mirror is arranged at a 45° angle with the first direction at the intersection of the first channel and the second channel, the beam splitter is arranged on the incident path or the reflection path of the reflector, and the incident path and the reflection path of the reflector pass through the first channel and the second channel respectively; the accommodating space is connected with the second channel and the third channel at the same time, the first galvanometer and the second galvanometer are rotatably arranged on a fixed frame and are located in the accommodating space, the first galvanometer is located on the reflection path of the reflector, the second galvanometer is located on the reflection path of the first galvanometer, and the reflection path of the second galvanometer passes through the third channel.

[0005] In some embodiments, the fixed frame includes an upper frame body, a lower frame body and a side frame body connecting the upper frame body and the lower frame body; wherein the accommodating space is located between the upper frame body, the lower frame body and the side frame body, the first channel and the second channel are both arranged through the side frame body, the side frame body has a mounting slope, the mounting slope is provided with an opening that is simultaneously connected to the first channel and the second channel, and the reflector is arranged at the opening; the third channel is arranged through the lower frame body.

[0006] In some embodiments, the fixing frame further includes a first mounting bracket, and the first mounting bracket is used to mount the beam splitter component on the inner surface of the side frame body facing the second channel.

[0007] In some embodiments, a first mounting hole is provided on the upper frame, a first motor is installed in the first mounting hole, the first motor is connected to the first galvanometer to drive the first galvanometer to rotate around a first direction; the side frame is provided with a second mounting hole, a second motor is installed in the second mounting hole, the second motor is connected to the second galvanometer to drive the second galvanometer to rotate around a second direction.

[0008] In some embodiments, the laser therapy handpiece further includes a fixed focus bracket, and the fixed focus bracket is connected below the fixed frame.

[0009] In some embodiments, the optical path assembly also includes a first lens, and the fixing assembly also includes a first lens barrel for mounting the first lens; wherein the first lens barrel is mounted on the fixing frame and is connected to the first channel, the first lens is mounted in the first lens barrel, and an end of the first lens barrel away from the fixing frame is used to connect to the laser.

[0010] In some embodiments, the laser therapy handpiece also includes a shell, which is arranged outside the fixing frame, and a first opening is provided on the top of the shell, the first lens barrel passes through the first opening, and a first sealing ring is provided between the first lens barrel and the side wall of the first opening.

[0011] In some embodiments, the optical path assembly further includes a second lens, and the fixing assembly further includes a second lens barrel for mounting the second lens; wherein the second lens barrel is mounted on the fixing frame and communicated with the third channel, and the second lens is mounted in the second lens barrel.

[0012] In some embodiments, the laser therapy handpiece further includes a fixed focus bracket, which is connected below the fixed frame. The fixed focus bracket includes a connecting ring, a fixed focus frame, and a connecting plate connected between the connecting ring and at least a portion of the edge of the fixed focus frame. The connecting ring is sleeved on the second lens barrel and connected to the second lens barrel, and the fixed focus frame is used to determine the treatment surface.

[0013] In some embodiments, the laser therapy handpiece also includes a shell, which is arranged outside the fixing frame, and a second opening is provided at the bottom of the shell, the second lens barrel passes through the second opening, and a second sealing ring is provided between the second lens barrel and the side wall of the second opening.

[0014] In some embodiments, the laser therapy handpiece also includes a shell, which is arranged on the outside of the fixing frame, and a third opening is provided on the top of the shell, a control connector is installed in the third opening, and a third sealing ring is provided between the control connector and the side wall of the third opening.

[0015] In some embodiments, the laser therapy handpiece also includes a shell, which includes a first shell, a second shell and a third shell from top to bottom, the fixing frame is located in the second shell, the control connector includes a plug part and a cable connection part, the plug part is used to connect the controller, and the cable connection part is electrically connected to the first motor and the second motor through a cable; the third opening includes a first through hole opened on the upper surface of the first shell and a second through hole opened on the upper surface of the second shell, the plug part and the cable connection part are respectively located in the first through hole and the second through hole, and the third sealing ring is arranged between the side wall of the second through hole and the cable connection part.

[0016] In some embodiments, the fixing frame is an integrally formed structure.

[0017] In some embodiments, the beam splitting device is an optical diffraction lens, and the optical diffraction lens is provided with a plurality of transverse diffraction lines and a plurality of longitudinal diffraction lines that are evenly arranged in parallel.

[0018] In some embodiments, the optical diffraction lens is in the shape of a rectangle, and the transverse diffraction stripes and the longitudinal diffraction lines are respectively parallel to two adjacent sides of the rectangle.

[0019] One of the embodiments of the present application provides a laser therapy system, comprising a laser, a light guide arm, and the laser therapy handpiece described in any of the above embodiments; wherein the light outlet of the laser is connected to the laser therapy handpiece through the light guide arm.

[0020] The laser therapy handpiece provided in the embodiment of the present application divides the laser into multiple light beams through the beam splitting device, and the multiple light beams are output to the treatment surface after being reflected by the first galvanometer and the second galvanometer, and are respectively scanned on the treatment surface to form multiple laser points to form a laser dot array. That is, a single laser pulse can complete the scanning of a laser dot array, which can improve the scanning efficiency of the laser therapy handpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following figures describe in detail the exemplary embodiments disclosed in this application. The same reference numerals represent similar structures in several views of the drawings. Those skilled in the art will understand that these embodiments are non-limiting, exemplary embodiments, and the drawings are only for the purpose of illustration and description, and are not intended to limit the scope of this application. Other embodiments may also accomplish the inventive intent in this application. It should be understood that the drawings are not drawn to scale.

[0022] in:

[0023] Figure 1 is a schematic diagram of the overall structure of a laser treatment handpiece according to some embodiments of the present application;

[0024] Figure 2 is a schematic diagram of an exploded structure of a laser treatment handpiece according to some embodiments of the present application;

[0025] Figure 3 is a schematic diagram of the optical path structure of an optical path component according to some embodiments of the present application;

[0026] Figure 4 is a schematic diagram of assembling an optical path component and a fixing component according to some embodiments of the present application;

[0027] Figure 5 is a schematic diagram of the assembly of the optical path component and the fixing component according to some embodiments of the present application at another viewing angle;

[0028] Figure 6 is a schematic diagram of the structure of a fixing frame according to some embodiments of the present application;

[0029] Figure 7 is a schematic structural diagram of a fixing frame according to some embodiments of the present application at another viewing angle;

[0030] Figure 8 yes Figure 6 A left side view of the mounting bracket shown;

[0031] Fig. 9 yes Figure 8 Sectional view in the AA direction;

[0032] Fig.10 yes Figure 1 A rear view of the laser therapy handpiece shown in;

[0033] Fig.11 yes Fig.10 Cross-sectional view in the BB direction;

[0034] Fig.12 yes Figure 1 A front view of the laser therapy handpiece shown in;

[0035] Fig.13 yes Figure 1 A left side view of the laser therapy handpiece shown in FIG.

[0036] Fig.14 It is a schematic diagram of the structure of a laser treatment system according to some embodiments of the present application. DETAILED DESCRIPTION

[0037] The following description provides specific application scenarios and requirements of the present application, with the purpose of enabling those skilled in the art to make and use the content in the present application. It will be apparent to those skilled in the art that various local modifications to the disclosed embodiments are apparent, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the embodiments shown, but to the widest scope consistent with the claims.

[0038] In laser treatment, doctors can use laser treatment handpieces to scan an array (referred to as laser dot matrix) composed of multiple light spots (also called laser points) on the treatment surface of the patient's skin to achieve. Specifically, the laser treatment handpiece mainly realizes the scanning function by controlling the rotation of the scanning galvanometer. Generally, the scanning galvanometer rotating around the X-axis and the scanning galvanometer deflecting around the Y-axis are combined to realize dot matrix scanning on the treatment surface, wherein the rotation frequency of the scanning galvanometer cooperates with the output frequency of the laser pulse to output the laser, wherein each time the laser is output, the scanning galvanometer deflects an angle, and the laser forms a laser point on the treatment surface, and by controlling the laser pulse output and the position change of the scanning galvanometer alternately, the laser dot matrix scanning on the treatment surface can be completed, and specifically, the laser dot matrix of a specific pattern (for example, square, circle, triangle) and the laser dot matrix scanning in a specific order can also be realized.

[0039] At present, laser treatment handpieces generally complete one laser point scan for each laser pulse output. Therefore, the laser dot matrix scanning efficiency of laser treatment handpieces is low, and it usually takes several seconds to complete a laser dot matrix scan. If the treatment surface area is large and multiple laser dot matrix scans are required, the long time of a single laser dot matrix scan will cause the laser treatment time of the entire treatment surface to be prolonged, thus affecting the treatment efficiency. In addition, since laser treatment handpieces are generally handheld, the operator is prone to arm fatigue and unstable handholding over time, which may lead to incorrect treatment areas and uneven treatment, thereby affecting the treatment effect and even causing skin damage.

[0040] In addition, the laser emitted by laser therapy handpieces is generally erbium laser, the wavelength of erbium laser is about 3 microns, this laser has a high absorption coefficient for water, and is sensitive to water vapor in the air. An environment with excessively high temperature will weaken the laser energy, so the sealing requirements for laser therapy handpieces are relatively high. In addition to internal waterproofing and dustproofing, it also needs to have a certain degree of airtightness. However, the sealing of laser therapy handpieces currently on the market is not good, and is only sealed by a simple threaded connection. This kind of seal only has the function of waterproofing and dustproofing, and cannot effectively block water vapor in the air, resulting in laser energy loss.

[0041] The embodiment of the present application provides a laser treatment hand tool, comprising: an optical path component, the optical path component comprising a reflector, a beam splitter, a first galvanometer and a second galvanometer; the first galvanometer is configured to rotate around a first direction, and the second galvanometer is configured to rotate around a second direction perpendicular to the first direction; a fixing component, the fixing component is used to install the optical path component; the fixing component comprises a fixing frame, the fixing frame has a accommodating space, a first channel extending along the first direction, a second channel extending along the second direction, and a third channel extending along the first direction and offset from the first channel; wherein the reflector and the The first direction is set at 45 degrees at the intersection of the first channel and the second channel, the beam splitter is set on the incident path or reflection path of the reflector, and the incident path and reflection path of the reflector pass through the first channel and the second channel respectively; the accommodating space is connected to the second channel and the third channel at the same time, the first galvanometer and the second galvanometer are rotatably set on the fixed frame and located in the accommodating space, the first galvanometer is located on the reflection path of the reflector, the second galvanometer is located on the reflection path of the first galvanometer, and the reflection path of the second galvanometer passes through the third channel. During the operation of the laser treatment handpiece, the laser will be divided into multiple light beams by the beam splitter before reaching the first galvanometer, and the multiple light beams are output to the treatment surface after being reflected by the first galvanometer and the second galvanometer, and scanned on the treatment surface to form multiple laser points, forming a laser dot matrix, that is, a single laser pulse can complete the scanning of a laser dot matrix, effectively improving the scanning efficiency of the laser treatment handpiece. The present application integrates the reflector, beam splitter, first galvanometer and second galvanometer in the optical path assembly into a fixed frame, and the fixed frame satisfies the optical path transmission through the setting of the first channel, the second channel, the accommodating space and the third channel, and the entire structure is easy to assemble the optical devices in the optical path assembly, so that the optical precision mechanical structure is simpler and more practical, improves the attenuation problem of erbium laser and improves the scanning efficiency. At the same time, by setting the first channel and the third channel in a staggered manner, the staggered distribution of the optical path entry and output is achieved, so that the appearance of the laser treatment handpiece can be designed to be easy to grasp by hand and easier to observe during treatment. It should be noted that the scanning involved in the present application may refer to the process of laser irradiation on the treatment surface to form laser points and laser dot arrays.

[0042] The technical solution of the present invention is described in detail below in conjunction with the embodiments and drawings. It should be noted that the first direction, the second direction, and the third direction involved in the present application can be the X-axis direction, the Y-axis direction, and the Z-axis direction marked in the relevant drawings of the present application, respectively, wherein the X-axis direction can be used to indicate the up-and-down direction of the laser therapy handpiece and its components, the Y-axis direction can be used to indicate the left-and-right direction of the laser therapy handpiece and its components, and the Z-axis direction can be used to indicate the front-and-back direction of the laser therapy handpiece and its components.

[0043] Figure 1 It is a schematic diagram of the overall structure of the laser therapy handpiece shown in some embodiments of the present application. Figure 2 It is a schematic diagram of the explosion structure of the laser therapy handpiece shown in some embodiments of the present application.

[0044] Combination Figure 1 and Figure 2 As shown, the laser therapy handpiece 100 provided in the embodiment of the present application may include an optical path component 10 and a fixing component 20 .

[0045] The optical path component 10 can be used to change the propagation direction of the laser in the laser treatment handpiece 100 to achieve a predetermined optical path, so that the laser can be irradiated on the treatment surface for dot matrix scanning.

[0046] Figure 3 It is a schematic diagram of the optical path structure of the optical path component shown in some embodiments of the present application.

[0047] like Figure 3 As shown, the optical path component 10 may include a reflector 11, a beam splitter 12, a first galvanometer 13 and a second galvanometer 14, wherein the first galvanometer 13 may be configured to rotate around a first direction, and the second galvanometer 14 may be configured to rotate around a second direction perpendicular to the first direction. Figure 3 The X-axis direction shown in FIG. 1 , the second direction can be Figure 3 The Y-axis direction is shown in FIG.

[0048] In some embodiments, the optical path realized by the optical path component 10 may be that the laser pulse 200 sequentially passes through the reflection of the reflector 11, the transmission of the beam splitter 12, the reflection of the first galvanometer 13, and the reflection of the second galvanometer 14 to reach the treatment surface 300. In some embodiments, the transmission of the beam splitter 12 may also occur before the reflection of the reflector 11.

[0049] In the optical path realized by the optical path component 10, the laser pulse 200 can be divided into a plurality of light beams 210 distributed in an array by the transmission of the beam splitter 12. The plurality of light beams 210 distributed in an array are irradiated on the treatment surface 300 after being reflected by the first galvanometer 13 and the second galvanometer 14. A plurality of laser points can be respectively scanned on the treatment surface 300. The plurality of laser points are distributed in an array to form a laser dot matrix. More descriptions of the beam splitter 12 can be found elsewhere in this specification, and will not be described in detail here.

[0050] The fixing component 20 can be used to install the optical path component 10 to achieve the position accuracy and fastening stability of the optical devices in the optical path 110 (for example, the reflector 11, the beam splitter 12, the first galvanometer 13, the second galvanometer 14, etc.), so as to increase the stability of the optical path realized by the optical path component 10.

[0051] Figure 4 It is a schematic diagram of the assembly of optical path components and fixing components according to some embodiments of the present application. Figure 5 It is a schematic diagram of the assembly of the optical path component and the fixing component from another perspective according to some embodiments of the present application. Figure 6 It is a schematic diagram of the structure of a fixing frame according to some embodiments of the present application. Figure 7 It is a schematic structural diagram of a fixing frame shown in some embodiments of the present application from another perspective. Figure 8 yes Figure 6 Left side view of the mounting bracket shown. Fig. 9 yes Figure 8 Cross-sectional view along the AA direction.

[0052] Combination Figures 4 to 9As shown, the fixing assembly 20 may include a fixing frame 21, the fixing frame 21 may have an accommodating space 211, a first channel 212 penetrating along a first direction, a second channel 213 penetrating along a second direction, and a third channel 214 penetrating along the first direction and staggered with the first channel 212; wherein the reflector 11 may be arranged at the intersection of the first channel 212 and the second channel 213, the beam splitter 12 may be arranged on the incident path or the reflection path of the reflector 11, and the incident path or the reflection path of the reflector 11 passes through the first channel 212 and the second channel 213 respectively; the accommodating space 211 is simultaneously connected with the second channel 212 and the third channel 214, the first galvanometer 13 and the second galvanometer 14 are rotatably arranged on the fixing frame 21 and are located in the accommodating space 211, the first galvanometer 13 is located on the reflection path of the reflector, the second galvanometer 14 is located on the reflection path of the first galvanometer 13, and the reflection path of the second galvanometer 14 passes through the third channel 214.

[0053] It should be noted that the staggered arrangement of the first channel 212 and the third channel 214 may be arranged so that the first channel 212 and the third channel 214 are parallel but not on the same straight line. In addition, the incident path and the reflected path of the optical device (for example, the reflector 11 and the first galvanometer 13 and the second galvanometer 14) involved in the present application may refer to the path of the laser irradiated on the optical device and the path of the laser reflected by the optical device, respectively.

[0054] Further, the fixing frame 21 may include an upper frame body 215, a lower frame body 216, and a side frame body 217 connecting the upper frame body 215 and the lower frame body 216. The accommodating space 211 is located at the upper frame body 215, the lower frame body 216, and the side frame body 217, the first channel 212 and the second channel 213 are both arranged through the side frame body 217, the side frame body 217 has a mounting inclined surface 218, and the mounting inclined surface 218 is provided with an opening 2181 that is connected to the first channel 212 and the second channel 213 at the same time, and the reflector 11 can be arranged at the opening 2181; the third channel 214 is arranged through the lower frame body 216. In some embodiments, the fixing frame 21 is an integrally formed structure, that is, the upper frame body 215, the lower frame body 216, and the side frame body 217 are integrally formed.

[0055] In some embodiments, the reflector 11 may be installed in the opening 2181 parallel to the installation slope 218. In some embodiments, the reflector 11 may be installed on the installation slope 218 and cover the opening 2181 by bonding or the like.

[0056] In some embodiments, the beam splitter 12 can be installed in the first channel 212 or located at any position on the fixing frame 21 in the extension direction in the first channel 212, and is located on the incident path of the reflector 11, so that in the optical path, the laser pulse is first transmitted by the beam splitter 12 and then irradiated onto the reflector 21. In some embodiments, the beam splitter 12 can be installed in the second channel 213 or located at any position on the fixing frame 21 in the extension direction in the second channel 213, and is located on the reflection path of the reflector, so that in the optical path, the laser pulse is first reflected by the reflector 11 and then irradiated onto the beam splitter 12.

[0057] In some embodiments, Figure 4 As shown, in order to facilitate the installation of the beam splitter 21, the beam splitter 21 can be installed on the inner surface of the side frame 217. The inner surface of the side frame 217 can refer to the surface of the side frame 217 facing the accommodating space 211. Further, the fixing frame 21 can also include a first mounting bracket, and the first mounting bracket is used to mount the beam splitter 212 on the inner surface of the side frame 217 facing the second channel 2134. It can be understood that the first mounting bracket cannot be installed in the side frame 217 because the beam splitter 21 covers and blocks the first mounting bracket. Figure 4 As shown in the figure, the first mounting bracket is not marked with a reference numeral.

[0058] In some embodiments, the first mounting bracket can be a frame structure, the beam splitter 12 can be nested in the first mounting bracket or connected to the first mounting bracket by gluing or the like, the first mounting bracket can be fixed to the inner surface of the side frame body 217 by screws, and the channel opening of the second channel 213 on the inner surface of the side frame body 217 is located in the first mounting bracket, so as to ensure that the laser coming out of the second channel 213 will not be obstructed in the process of reaching the beam splitter 12.

[0059] In some embodiments, a first mounting hole 2151 is provided on the upper frame 215, and a first motor 131 can be installed in the first mounting hole 2151, and the output shaft of the first motor 131 faces the accommodating space 211, the first galvanometer 13 can be located in the accommodating space 211 and connected to the output shaft of the first motor 131, and the first galvanometer 13 can rotate around the first direction in the accommodating space 214 driven by the first motor 131; a second mounting hole 2171 is provided on the side frame 217, and a second motor 141 can be installed in the second mounting hole 2171, and the output shaft of the second motor 141 faces the accommodating space 211, the second galvanometer 14 can be located in the accommodating space 211 and connected to the output shaft of the second motor 141, and the second galvanometer 14 can rotate around the second direction in the accommodating space 211 driven by the second motor 141.

[0060] The working principle of the laser therapy handpiece 100 will be described below by taking the beam splitter 12 disposed on the inner surface of the side frame 217 as an example.

[0061] When the laser treatment handpiece 100 is working, a single laser pulse is first input into the first channel 212 and reaches the reflector 11. The laser pulse is reflected by the reflector 11 and enters the second channel 213, and reaches the beam splitter 12 through the second channel 213. The laser pulse 200 is transmitted through the beam splitter 12 and is divided into a plurality of light beams 210 distributed in an array. The plurality of light beams 210 distributed in an array are sequentially emitted by the first galvanometer 13 and the second galvanometer 14 and then enter the third channel 214, and then are output to the treatment surface 300. The plurality of light beams 210 distributed in an array are scanned on the treatment surface 300 to obtain a plurality of laser points distributed in an array, thereby realizing laser dot matrix scanning on the treatment surface 300. When the next laser dot array scan is performed, the next laser pulse will be input into the first channel 212. By deflecting the first galvanometer 13 and the second galvanometer 14 under the drive of their respective motors, the multiple light beams 210 distributed in an array divided by the next laser pulse can be output to the next treatment surface 300, thereby completing the next laser dot array scan on the next treatment surface 300.

[0062] In some embodiments, the multiple light beams 210 may be distributed in a rectangular array of M*N, where M and N represent the number of rows and columns in the rectangular array distribution, and M and N are integers greater than 1, for example, M and N may be 3, 4, 5, 7, etc. In some embodiments, the multiple light beams 210 may also be distributed in a circular or triangular manner. In some embodiments, the array distribution shape of the multiple light beams 210 corresponds to the array distribution shape of the laser dot matrix formed by the multiple light beams 210, for example, the multiple light beams 210 are distributed in a rectangular array, and the laser dot matrix formed by the multiple light beams 210 is also distributed in a rectangular array.

[0063] In some embodiments, the beam splitting device 12 can be a microlens array composed of multiple microlenses. When a laser pulse is irradiated onto the microlens array, each microlens in the microlens array can transmit a light beam 210, thereby forming multiple light beams 210 distributed in an array.

[0064] In some embodiments, the beam splitter 12 may be an optical diffraction lens, on which a plurality of uniformly parallel horizontal diffraction lines and a plurality of longitudinal diffraction lines are arranged. When a laser pulse passes through the optical diffraction lens, the plurality of horizontal diffraction lines and the plurality of longitudinal diffraction lines divide the laser pulse into a plurality of light beams 210 with different beam divergence angles distributed in an array. By adopting an optical diffraction lens, the energy loss of the laser pulse when passing through the beam splitter 12 can be reduced, so as to reduce the influence of the laser pulse energy loss on the treatment effect. In addition, the plurality of light beams 210 divided by the optical diffraction lens have good uniformity, so that the formed laser points also have good uniformity. In some embodiments, the shape of the optical diffraction lens may be a rectangle, and the horizontal diffraction stripes and the longitudinal diffraction lines on the optical diffraction lens are respectively parallel to the two adjacent sides of the rectangle. Such a design can facilitate the installation of the optical diffraction lens, and during the installation process, there is no need to perform concentric and centering operations to adjust the installation position of the optical diffraction lens, so that the optical diffraction lens can be used normally once installed.

[0065] In some embodiments, in combination Figures 3 to 7 As shown, the optical assembly 10 may further include a first lens 15, and the fixing assembly 20 may further include a first lens barrel 22 for mounting the first lens 15. The first lens barrel 22 may be a cylindrical structure with two ends open, and the first lens 15 may be mounted in the first lens barrel 22. Further, the first lens barrel 22 may be mounted on the upper frame 215 and communicate with the first channel 212. In some embodiments, Figure 7 As shown, the upper frame 215 defines a third mounting hole 2152 for mounting the first lens barrel 22 , and the third mounting hole 2152 is communicated with the first channel 2133 .

[0066] In some embodiments, one end of the first lens barrel 22 away from the upper frame 215 (i.e., the upper end of the first lens barrel 22) can be used to connect a laser (not shown in the figure), and the laser pulse emitted by the laser can enter the first channel 212 through the first lens barrel 22. As an exemplary illustration, a thread is provided on the outer side of the upper end of the first lens barrel 22, and the thread can be connected to one end of a light guide arm, and the other end of the light guide arm is connected to the laser, and the laser pulse emitted by the laser can be transmitted to the first lens barrel 22 through the light guide arm.

[0067] In some embodiments, the first lens 15 can be installed in the upper end of the first lens barrel 22. In some embodiments, the first lens 15 can be installed in the upper end of the first lens barrel 22 by a second mounting bracket 221. As an exemplary illustration, the second mounting bracket 221 can be an annular structure, the first lens 15 can be embedded in the annular structure or connected to the annular structure by gluing or the like, the outer side of the annular structure is provided with an external thread, the upper end of the first lens barrel 22 is provided with an internal thread, the annular structure can be installed in the upper end of the second lens barrel 22 by a threaded connection, so as to realize the installation of the first lens 15 in the upper end of the first lens barrel 22.

[0068] By installing the first lens 15 in the first lens barrel 22, the first lens 15 can shape the laser pulse before the laser pulse enters the first channel 2133, for example, changing the cross-sectional spot size of the entire beam of the laser pulse and the divergence angle or convergence angle, so that the shape of the laser point position finally formed on the treatment surface 300 conforms to the expected shape that can achieve a better treatment effect. In some embodiments, in order to achieve a better shaping effect of the laser pulse by the first lens 15, the first lens 15 can be a telephoto lens. In addition, the setting of the first lens 15 can also play a dust-proof role, which can prevent external dust from entering the laser treatment handpiece 100 through the first lens barrel 22 and affecting the stability of the optical path achieved by the optical path component 10.

[0069] In some embodiments, in combination Figures 2 to 7As shown, the optical path component 10 may further include a second lens 16, and the fixing component 20 may further include a second lens barrel 23 for mounting the second lens 15. The second lens barrel 23 may be a cylindrical structure with openings at both ends, and the second lens 16 may be mounted in the second lens barrel 23. Further, the second lens barrel 23 may be mounted on the lower frame 216 and communicate with the third channel 214. In some embodiments, a fourth mounting hole 2161 for mounting the second lens barrel 23 is provided on the surface of the lower frame 216 away from the accommodating space 211, and the fourth mounting hole 2161 is communicated with the third channel 214. In some embodiments, the fourth mounting hole 2161 is the third channel 214. In some embodiments, the second lens 16 may be fixed in the second lens barrel 23 by a threaded pressing ring (not shown in the figure).

[0070] Through the transmission of the second lens 16, the multiple light beams 210 reflected by the second galvanometer 14 can be focused to various positions on the treatment surface 300 to form various laser points and form a laser dot array. The setting of the second lens 16 can ensure that the multiple light beams 210 can always be focused on the treatment surface 300 when the first galvanometer 13 and / or the second galvanometer 14 are deflected.

[0071] In some embodiments, in combination Figure 1 and Figure 2 As shown, the laser treatment handpiece 100 may further include a fixed focus bracket 40, and the fixed focus bracket 40 may be connected above the fixed frame 21, and the fixed focus bracket 40 may be used to support the fixed component 20 and the optical path component 10, and may be used to determine the treatment surface 300.

[0072] In some embodiments, the focus bracket 40 may include a connection ring 41, a focus frame 42, and a connection plate 43 connected between the connection ring 41 and at least part of the edge of the focus frame 42. In some embodiments, the connection ring 41 may be sleeved on the second lens barrel 23 and connected to the second lens barrel 23 by means of threads or the like. In some embodiments, the focus frame 42 may be used to determine a treatment surface 300. As an exemplary illustration, when using the laser treatment handpiece 100, the operator may place the laser treatment handpiece 100 on the patient's skin so that the focus frame 42 fits the patient's skin, and the skin area within the focus frame 42 is the treatment surface 300, that is, the skin area within the focus frame 42 is the skin area where the laser treatment handpiece 100 scans to form a laser dot array. In some embodiments, the connection plate 43 may be provided with a hollow portion, and by providing the hollow portion, it is convenient for the operator to observe the treatment surface 300 through the hollow portion when using the laser treatment handpiece 100.

[0073] In some embodiments, in combination Figure 1 , Figure 2 As shown, the laser therapy handpiece 100 may further include a housing 30, and the housing 30 may be disposed on the outside of the fixing frame 21 to protect the optical devices (e.g., the reflector 11, the beam splitter 12, the first galvanometer 13, and the second galvanometer 14) mounted on the fixing frame 21. Specifically, the housing 30 may be used to isolate the optical devices from the external environment, and prevent gaseous, liquid, and solid substances in the external environment from entering the optical path component 10 and affecting the stability of its optical path (e.g., weakening the laser energy, etc.). At the same time, the housing of the laser therapy handpiece can achieve good sealing, and can fully isolate the laser transmitted inside the laser therapy handpiece from the outside air, so as to prevent the water vapor in the outside air from weakening the laser energy and affecting the treatment effect.

[0074] Fig.10 yes Figure 1 Rear view of the laser therapy handpiece shown in FIG. Fig.11 yes Fig.10 Cross-sectional view along the BB direction.

[0075] In some embodiments, in combination Fig.10 and Fig.11 As shown, the top of the shell 30 may be provided with a first opening 31, the first lens barrel 22 may pass through the first opening 31 so that its upper end may protrude from the top of the shell 30, and a first sealing ring 51 is provided between the first lens barrel 22 and the side wall of the first opening 31 to achieve sealing between the first lens barrel 22 and the first opening 31.

[0076] In some embodiments, in combination Fig.10 and Fig.11 As shown, the bottom of the housing 30 may be provided with a second opening 32, the second lens barrel 23 may pass through the second opening 32 so that its lower end may protrude from the bottom of the housing 30, and a second sealing ring 52 is provided between the second lens barrel 23 and the side wall of the second opening 32 to achieve sealing between the second lens barrel 23 and the second opening 32.

[0077] In some embodiments, in combination Fig.10 and Fig.11As shown, the top of the housing 30 is provided with a third opening 33, in which a control connector 60 is installed, and a third sealing ring 53 is provided between the control connector 60 and the side wall of the third opening 33 to achieve sealing between the control connector 60 and the third opening 33. Further, the housing 30 may include a first shell 34, a second shell 35 and a third shell 36 from top to bottom, the fixing frame may be located in the second shell 35, and the control connector 60 may include a plug portion 61 and a cable connecting portion 62, the plug portion 61 is used to connect the controller, and the cable connecting portion 62 is electrically connected to the first motor 131 and the second motor 141 through a cable. When the laser treatment handpiece 100 is working, the controller can be electrically connected to the plug portion 61 by plugging, and then send a control signal to the first motor 131 and the second motor 141 through the control connector 60, so as to control the first motor 131 and the second motor 141 to drive the first galvanometer 13 and the second galvanometer 14 to deflect according to a predetermined program.

[0078] Furthermore, the third opening 33 may include a first through hole 331 opened on the upper surface of the first shell 34 and a second through hole 332 opened on the upper surface of the second shell 35, the plug part 61 and the cable connecting part 62 are respectively located in the first through hole 331 and the second through hole 332, and the third sealing ring 53 can be specifically arranged between the side wall of the second through hole 332 and the cable connecting part 62.

[0079] The first sealing ring 51, the second sealing ring 52 and the third sealing ring 53 can improve the overall sealing performance of the laser therapy handpiece 100, and effectively prevent foreign matter from entering the laser therapy handpiece 100 through the first opening 31, the second opening 32 and the third opening 33 to affect the stability of the optical path. As an exemplary illustration, the first sealing ring 51, the second sealing ring 52 and the third sealing ring 53 can have good airtightness, and can prevent external humid air from entering the laser therapy handpiece 100 to absorb laser energy, thereby reducing the energy of the beam output from the laser therapy handpiece 100 to the treatment surface 300 and affecting the treatment effect, or causing internal water vapor to condense into dew and contaminate the optical devices in the optical path component 10, further enabling the laser therapy handpiece of this embodiment to be used for erbium laser therapy devices, improving the erbium laser attenuation problem and improving scanning efficiency.

[0080] In some embodiments, the first housing 34, the second housing 35 and the third housing 36 can be connected by screws to form the entire housing 30. This arrangement can facilitate the installation of the fixing assembly 20 together with the optical path assembly 10 into the housing 30. As an exemplary illustration, after the fixing assembly 20 and the optical path assembly 10 are assembled, the second housing 35 can be first connected to the fixing frame 21 by screws, and then the first lens barrel 22 passes through the first housing 34, the second lens barrel 23 passes through the third housing 36, and then the first housing 34 and the third housing 36 are respectively fixed to the top and bottom of the second housing 35 by screws.

[0081] Fig.12 yes Figure 1 A front view of the laser therapy handpiece is shown in FIG. Fig.13 yes Figure 1 Left side view of the laser therapy handpiece shown in .

[0082] In some embodiments, in combination Figure 1 , Fig.12 as well as Fig.13 As shown, the outer shape of the housing 30 may be the shape of a palm when in a gripping state. This configuration can facilitate the operator to grip the laser therapy handpiece 100 and reduce the operator's palm fatigue when gripping the laser therapy handpiece 100. In some embodiments, as Fig.10 As shown, the side profile of the front of the housing 30 is adapted to the shape of the index finger, the middle finger and the ring finger, and the side profile of the rear of the housing 30 is adapted to the shape of the base of the palm.

[0083] In some embodiments, in combination Figure 3 , Fig.12 as well as Fig.13 As shown, the reflector 11 can be located below the first lens 15, the first galvanometer 13 is located to the left of the reflector 11, the second galvanometer 14 is located in front of the first galvanometer 13, and the second lens 16 is located below the second galvanometer 14. The optical path realized by the above-mentioned setting can make the appearance shape of the shell 30 designed according to the overall envelope shape of the fixing component 20 adapt to the shape of the right hand palm when in a gripping state, that is, the appearance shape of the shell 30 designed according to the overall envelope shape of the fixing component 20 is suitable for the operator to hold with the right hand. At the same time, the output port position of the light beam 210 of the laser treatment handpiece 100 can be located at the left front of the bottom of the shell 30, so that the operator can have a wide field of vision when holding the laser treatment handpiece 100 with the right hand, so as to observe the treatment surface 300.

[0084] In some embodiments, the reflector 11 may be located below the first lens 15, the first galvanometer 13 may be located to the right of the reflector 11, the second galvanometer 14 may be located behind the first galvanometer 13, and the second lens 16 may be located below the second galvanometer 14. The optical path realized by the above-mentioned setting can make the appearance shape of the housing 30 designed according to the overall envelope shape of the fixing component 20 compatible with the shape of the left palm when in a gripping state, that is, the appearance shape of the housing 30 designed according to the overall envelope shape of the fixing component 20 is suitable for the operator to grip with his left hand. At the same time, the output port of the light beam of the laser therapy handpiece 100 may be located at the right rear of the bottom of the housing 30, so that the operator can have a wide field of vision when holding the laser therapy handpiece 100 with his left hand, so as to observe the treatment surface 300.

[0085] Fig.14 It is a schematic diagram of the structure of a laser treatment system according to some embodiments of the present application.

[0086] like Fig.14 As shown, the embodiment of the present application further provides a laser treatment system 400, which may include a laser 410, a light guide arm 420 and a laser treatment handpiece 100; wherein the light outlet of the laser 410 may be connected to the laser treatment handpiece 100 through the light guide arm 420. As an exemplary illustration, the laser 210 may generate laser pulses and emit them from its light outlet to the light guide arm 420, and the laser pulses may be transmitted to the laser treatment handpiece 100 (e.g., the first lens barrel 22) via the light guide arm 420, and divided into a plurality of light beams 210 and output to the treatment surface 300, thereby completing the corresponding laser treatment. The laser treatment handpiece 100 has been described in detail above and will not be repeated here. It should be noted that the controller connected to the control connector in the laser therapy handpiece 100 can not only serve as the controller of the laser therapy handpiece 100 to send control signals to the first motor 131 and the second motor 141 to respectively control the first motor 131 to drive the first galvanometer 13 to rotate around the first direction and the second motor 141 to drive the second galvanometer 14 to rotate around the second direction, but also serve as the controller of the entire laser therapy system 400, communicate with the laser 410, and send control signals to the laser 410 to control the laser to generate and emit laser pulses.

[0087] The beneficial effects that may be brought about by the embodiments of the present application include but are not limited to: (1) The laser treatment handpiece improved by the embodiments of the present application divides the laser into multiple beams through a beam splitter, so that a single laser pulse can complete the scanning of a laser dot array, which can effectively improve the scanning efficiency; (2) The beam splitter is an optical diffraction lens, which can reduce the energy loss in the process of dividing the laser into multiple beams and ensure the treatment effect; (3) The multiple beams divided by the optical diffraction lens are relatively uniform, so that the laser points of the formed laser dot array also have good uniformity; (4) The outer shell has good sealing performance, which can effectively prevent foreign matter from entering (5) The shape of the outer shell designed according to the optical path realized by the optical path component can be convenient for hand holding, which can relieve the palm fatigue of the operator when using the laser therapy handpiece, and is convenient for observation during treatment, thereby improving the usability of the laser therapy handpiece; (6) The optical path component is installed by a fixing component, and the fixing component includes the mounting structure of all optical devices, which can ensure the position accuracy and fastening stability of the optical devices, thereby increasing the stability of the optical path and reducing the difficulty of assembling the optical components.

[0088] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other beneficial effects that may be obtained.

[0089] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this application. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this application.

[0090] It should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "fix" 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 rotating connection or a sliding connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood in combination with specific circumstances.

[0091] In addition, when terms such as "first", "second", and "third" are used in the specification of this application to describe various features, these terms are only used to distinguish these features and cannot be understood as indicating or implying the relationship between the features, the relative importance, or implicitly indicating the number of features indicated.

[0092] In addition, the present specification describes exemplary embodiments by reference to idealized exemplary cross-sectional views and / or plan views and / or stereograms. Therefore, differences from the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are foreseeable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but should include deviations in shapes caused by, for example, manufacturing. Therefore, the regions shown in the figures are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device nor to limit the scope of the exemplary embodiments.

[0093] At the same time, the present application uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in the present application does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0094] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this application, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0095] Finally, it should be understood that the embodiments described in this application are only used to illustrate the principles of the embodiments of the present application. Other variations may also fall within the scope of the present application. Therefore, as an example and not a limitation, the alternative configurations of the embodiments of the present application may be considered to be consistent with the teachings of the present application. Accordingly, the embodiments of the present application are not limited to the embodiments explicitly introduced and described in the present application.

Claims

1. A laser treatment hand tool, characterized in that: include: An optical path component, the optical path component comprising a reflector, a beam splitter, a first galvanometer and a second galvanometer; the first galvanometer is configured to rotate around a first direction, and the second galvanometer is configured to rotate around a second direction perpendicular to the first direction; A fixing component, the fixing component is used to install the optical path component; the fixing component includes a fixing frame, the fixing frame has an accommodating space, a first channel arranged through in a first direction, a second channel arranged through in a second direction, and a third channel arranged through in the first direction and staggered with the first channel; wherein, The reflector is arranged at the intersection of the first channel and the second channel at an angle of 45° to the first direction, the beam splitter is arranged on the incident path or the reflection path of the reflector, and the incident path and the reflection path of the reflector pass through the first channel and the second channel respectively; The accommodating space is connected to the second channel and the third channel at the same time. The first galvanometer and the second galvanometer are rotatably set on a fixed frame and are located in the accommodating space. The first galvanometer is located on the reflection path of the reflection mirror, and the second galvanometer is located on the reflection path of the first galvanometer. The reflection path of the second galvanometer passes through the third channel.

2. The laser therapy handpiece according to claim 1, characterized in that: The fixing frame includes an upper frame body, a lower frame body, and a side frame body connecting the upper frame body and the lower frame body; wherein the accommodating space is located between the upper frame body, the lower frame body, and the side frame body, The first channel and the second channel are both arranged through the side frame body, the side frame body has a mounting slope, the mounting slope is provided with an opening that is connected to the first channel and the second channel at the same time, and the reflector is arranged at the opening; The third channel is arranged through the lower frame.

3. The laser therapy handpiece according to claim 2, characterized in that: The fixing frame also includes a first mounting bracket, which is used to mount the beam splitter component on the inner surface of the side frame body facing the second channel.

4. The laser treatment handpiece according to claim 2, characterized in that: The upper frame is provided with a first mounting hole, in which a first motor is installed, and the first motor is connected to the first galvanometer to drive the first galvanometer to rotate around a first direction; the side frame is provided with a second mounting hole, in which a second motor is installed, and the second motor is connected to the second galvanometer to drive the second galvanometer to rotate around a second direction.

5. The laser therapy handpiece according to claim 1, characterized in that: The laser treatment hand tool also includes a fixed focus bracket, which is connected below the fixing frame.

6. The laser therapy handpiece according to claim 1, characterized in that: The optical path assembly also includes a first lens, and the fixing assembly also includes a first lens barrel for mounting the first lens; wherein the first lens barrel is mounted on the fixing frame and communicated with the first channel, the first lens is mounted in the first lens barrel, and an end of the first lens barrel away from the fixing frame is used to connect to the laser.

7. The laser therapy handpiece according to claim 6, characterized in that: The laser therapy handpiece also includes a shell, which is arranged outside the fixing frame. A first opening is provided on the top of the shell, the first lens barrel passes through the first opening, and a first sealing ring is provided between the first lens barrel and the side wall of the first opening.

8. The laser therapy handpiece according to claim 1, characterized in that: The optical path assembly further includes a second lens, and the fixing assembly further includes a second lens barrel for mounting the second lens; wherein the second lens barrel is mounted on the fixing frame and communicated with the third channel, and the second lens is mounted in the second lens barrel.

9. The laser therapy handpiece according to claim 8, characterized in that: The laser treatment handpiece also includes a fixed focus bracket, which is connected to the bottom of the fixed frame. The fixed focus bracket includes a connecting ring, a fixed focus frame, and a connecting plate connected between the connecting ring and at least a portion of the edge of the fixed focus frame. The connecting ring is sleeved on the second lens barrel and connected to the second lens barrel. The fixed focus frame is used to determine the treatment surface.

10. The laser therapy handpiece according to claim 8, characterized in that: The laser therapy handpiece also includes a shell, which is arranged outside the fixing frame. A second opening is provided at the bottom of the shell, and the second lens barrel passes through the second opening. A second sealing ring is provided between the second lens barrel and the side wall of the second opening.

11. The laser therapy handpiece according to claim 4, characterized in that: The laser therapy handpiece also includes a shell, which is arranged outside the fixing frame. A third opening is provided on the top of the shell, a control connector is installed in the third opening, and a third sealing ring is provided between the control connector and the side wall of the third opening.

12. The laser therapy handpiece according to claim 11, characterized in that: The shell includes a first shell, a second shell and a third shell from top to bottom, the fixing frame is located in the second shell, the control connector includes a plug part and a cable connecting part, the plug part is used to connect the controller, and the cable connecting part is electrically connected to the first motor and the second motor through a cable; the third opening includes a first through hole opened on the upper surface of the first shell and a second through hole opened on the upper surface of the second shell, the plug part and the cable connecting part are respectively located in the first through hole and the second through hole, and the third sealing ring is arranged between the side wall of the second through hole and the cable connecting part.

13. The laser therapy handpiece according to claim 1, characterized in that: The fixing frame is an integrally formed structure.

14. The laser therapy handpiece according to claim 1, characterized in that: The beam splitting device is an optical diffraction lens, on which a plurality of transverse diffraction lines and a plurality of longitudinal diffraction lines which are evenly arranged in parallel are arranged.

15. The laser therapy handpiece according to claim 14, characterized in that: The optical diffraction lens is in the shape of a rectangle, and the transverse diffraction stripes and the longitudinal diffraction lines are respectively parallel to two adjacent sides of the rectangle.

16. A laser treatment system, characterized in that: It comprises a laser, a light-guiding arm and the laser therapy handpiece according to any one of claims 1 to 15; wherein the light outlet of the laser is connected to the laser therapy handpiece through the light-guiding arm.

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