Laser treatment handheld device

Abstract

The invention discloses a laser treatment handheld device, and relates to the technical field of medical instruments, the laser treatment handheld device comprises a shell, a laser source and a controller, the shell is provided with a first end and a second end which are oppositely arranged in a first direction, the outer side of the second end in the first direction is a treatment area, and a first cavity is formed in the shell; the first cavity is provided with a light path outlet penetrating through the second end in the first direction. The laser source is used for emitting a laser beam entering the first cavity; moreover, a lens assembly and an image assembly are arranged in the first cavity, and by controlling the actions of the lens assembly and the image assembly, the laser treatment handheld device can utilize the image assembly to obtain an image of a treatment area and analyze and mark a treatment target displayed in the image. Therefore, the laser emitted by the laser source can accurately fall on a treatment target in a treatment area, the laser treatment handheld device can achieve the treatment effect of accurate treatment, and the problem that an existing laser instrument cannot achieve accurate treatment is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a laser treatment handheld device. Background Art

[0002] Laser beauty treatment is a treatment method that transmits a laser beam with a specific wavelength through the epidermis and dermis of the human body to destroy pigment cells and pigment granules in the human body, thereby achieving a beauty effect. The fragments generated by the destruction of pigment cells and pigment granules will be processed and absorbed by macrophages in the human body, making laser beauty treatment have the advantages of safety and no scarring compared with traditional beauty treatment methods.

[0003] Currently, most of the laser instruments used for skin freckle removal treatment and hair removal treatment rely on manual positioning operation by human eye vision. The laser beam emitted by the instrument can only be randomly treated within the window area and cannot achieve precise treatment, resulting in these laser instruments being more likely to damage the surrounding skin of users and having insufficient safety. Summary of the Invention

[0004] The purpose of the present invention is to provide a laser treatment device to guide the treatment process of the laser treatment device through image processing, achieving the treatment effects of precise focusing and precise treatment, so as to solve the problem that existing laser instruments cannot achieve precise treatment.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A laser treatment handheld device includes a housing, a laser source, and a controller. The housing has a first end and a second end arranged opposite to each other in a first direction. The second end is a treatment area outside the first direction, and a first cavity is provided in the housing. The first cavity is provided with an optical path outlet that penetrates the second end along the first direction; the laser source is used to emit a laser beam incident into the first cavity; and,

[0007] A lens assembly and an image assembly are provided in the first cavity. Among them, the lens assembly receives the laser beam and makes the laser beam shoot towards the optical path outlet along the first direction, thereby forming a laser focus falling into the treatment area; the image assembly is arranged on the periphery of the laser beam, and the image assembly faces the second end to obtain an image of the treatment area; and,

[0008] The controller is used to control the actions of the laser source, the lens assembly, and the image assembly, and the controller is configured to:

[0009] In the case of not obtaining an image of the treatment area, turn on the image assembly, obtain an image of the treatment area, and mark the treatment target in the image;

[0010] When the treatment target is acquired, the lens assembly is caused to focus the laser beam of the laser source on the treatment target, and the laser source is turned on to emit the laser beam.

[0011] In some embodiments, the lens assembly is configured to be able to adjust the position of the laser focus within the treatment area. It has a first direction, a second direction, and a third direction that are perpendicular to each other in pairs, and the lens assembly includes:

[0012] A first galvanometer mirror, which is configured to be able to rotate around the first direction to receive the laser beam incident from the second direction and emit the laser beam along the third direction;

[0013] A second galvanometer mirror, which is configured to be able to rotate around the second direction to receive the laser beam incident from the first galvanometer mirror and emit the laser beam along the first direction;

[0014] A field lens, which is arranged on the side of the second galvanometer mirror facing the second end to receive the laser beam incident from the second galvanometer mirror.

[0015] In some embodiments, the controller is further configured to:

[0016] When the treatment target is marked, control the first galvanometer mirror and / or the second galvanometer mirror to rotate, so that the laser focus of the laser beam moves in a moving coordinate system composed of two axes, so that the laser focus of the laser beam falls on the treatment target, where the first axis of the moving coordinate system is the second direction, and the second axis of the moving coordinate system is the third direction.

[0017] In some embodiments, the lens assembly further includes a reflector, which is arranged towards the second direction to receive the laser beam incident from the laser source and emit the laser beam along the second direction;

[0018] And, the laser source extends into the first cavity along the first direction, so that the laser beam is incident on the reflector along the first direction.

[0019] In some embodiments, the lens assembly and the image assembly are arranged along the propagation path of the laser beam in the first cavity, and the image assembly includes:

[0020] An illumination light source, which is arranged around the cylindrical area of the laser beam and is arranged towards the second end to irradiate the treatment area;

[0021] A camera is arranged on a side of the illumination light source facing the second end, is built into the first cavity, and is arranged adjacent to the regional column; and the camera is arranged toward the second end to photograph the treatment area.

[0022] In some embodiments, the illumination light source comprises:

[0023] A lamp holder, wherein the lamp holder is provided with a second light-transmitting hole, and the second light-transmitting hole penetrates the lamp holder in the first direction;

[0024] A light source, the light source is disposed on the lamp holder, arranged around the second light-transmitting hole, and avoids the area where the camera is located;

[0025] A light diffuser is arranged between the light source and the camera, and a third light transparent hole communicating with the second light transparent hole is provided on the light diffuser.

[0026] In some embodiments, the first cavity includes a first chamber and a second chamber, the first chamber is connected to the second chamber in the first direction, and,

[0027] A fixing seat is disposed in the second chamber, a first light-transmitting hole is disposed in the fixing seat and is arranged to penetrate in the first direction, and a notch is disposed in the fixing seat, and the notch communicates the periphery of the first light-transmitting hole with the outside of the fixing seat; and,

[0028] The first galvanometer and the second galvanometer are arranged in the first chamber, the field lens is installed in the first light-transmitting hole through the notch, and the image component is connected to the side of the fixing base away from the first chamber and arranged around the first light-transmitting hole.

[0029] In some embodiments, a protective mirror is disposed in the first cavity, and the protective mirror is disposed between the field lens and the image component to seal the side of the field lens facing the second end.

[0030] In some embodiments, the second end of the housing is connected to a cover shell, a second cavity is disposed in the cover shell, the second cavity is connected to the first cavity via the light path outlet, and,

[0031] The cover shell extends along the first direction, and a polarizing plate is disposed at one end of the cover shell away from the housing in the first direction, and the outer side of the polarizing plate in the first direction is a treatment area.

[0032] In some embodiments, the light emitted by the image component is polarized light and is compatible with the polarizer.

[0033] Compared with the prior art, the beneficial effects of a laser treatment handheld device implemented by the present invention are as follows:

[0034] By providing a mutually cooperating lens assembly and image assembly, the laser treatment handheld device of the present invention can use the image assembly to obtain an image of the treatment area, analyze and mark the treatment target shown in the image, so that the laser emitted by the laser source can accurately fall on the treatment target in the treatment area. Furthermore, the laser treatment handheld device of the present invention can achieve the treatment effects of precise focusing and precise treatment, thereby solving the problem that existing laser instruments cannot achieve precise treatment.

[0035] Moreover, by integrating the lens assembly and the image assembly into the first cavity of the housing, the laser treatment handheld device of the present invention not only has a high integration degree, effectively controls the device volume, and is suitable for being held and operated by an operator, but also makes the image assembly of the laser treatment handheld device on the same axis as the treatment area and the image assembly closer to the landing position of the laser beam. As a result, the moving coordinate system fits better with the treatment area, and the controller can drive the laser focus to adjust the position more accurately and quickly along the moving coordinate system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic diagram of the laser treatment handheld device in an embodiment of the present invention;

[0037] Figure 2 is Figure 1 a top view of the structure shown;

[0038] Figure 3 is Figure 2 a three-dimensional schematic diagram of the A-A cross-section of the structure shown;

[0039] Figure 4 is Figure 3 an enlarged view of B in;

[0040] Figure 5 is Figure 1 a schematic diagram of the treatment area and the laser focus in the structure shown;

[0041] Figure 6 is Figure 1 a schematic diagram of the regional cylinder in the structure shown;

[0042] Figure 7 is a schematic diagram of the fixing base in an embodiment of the present invention;

[0043] Figure 8 is a schematic diagram of the laser treatment handheld device in an embodiment of the present invention with a housing and a polarizer;

[0044] Figure 9 is Figure 8Schematic cross-sectional view of the shown structure;

[0045] Figure 10 It is a schematic flowchart of the first control process executed by the controller in an embodiment of the present invention;

[0046] Figure 11 It is a schematic flowchart of the second control process executed by the controller in an embodiment of the present invention.

[0047] In the figure, 100 is a laser treatment handheld device; X is the first direction; Y is the second direction; Z is the third direction; 1 is a housing; 1a is the first end; 1b is the second end; 2 is a laser source; 3 is a treatment area; 4 is a first cavity; 4a is the first chamber; 4b is the second chamber; 5 is an optical path outlet; 6 is a lens assembly; 6a is the first galvanometer; 6b is the second galvanometer; 6c is a field lens; 6d is a reflector; 7 is an image assembly; 7a is a camera; 7b is an illumination light source; 7b1 is a lamp holder; 7b2 is a lamp source; 7b3 is a light homogenizing plate; 8 is a controller; 9 is a servo motor; 10 is a regional cylinder; 11 is a second light-transmitting hole; 12 is a fixing base; 12a is a notch; 13 is a first light-transmitting hole; 14 is a cover shell; 15 is a polarizer; 16 is a third light-transmitting hole; 17 is a laser focus; 18 is a second cavity; 19 is a protective mirror. Detailed implementation manners

[0048] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "mounted", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "height", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present invention is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0051] In the description of the present invention, it should be understood that the terms "first" and "second" in the present invention are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0052] Embodiment

[0053] Reference Figure 1-11 , an embodiment of the present invention provides a laser treatment handheld device 100 having a first direction X, a second direction Y, and a third direction Z that are perpendicular to each other in pairs. Among them, the first direction X is defined as the laser output direction, that is Figure 1 the up and down direction of the shown laser treatment handheld device 100, and taking Figure 1 the side of the shown laser treatment handheld device 100 where the output laser is located as the lower side / below / lower end, and the opposite side as the upper side / above / upper end; the second direction Y is defined as Figure 1 the left and right direction of the shown laser treatment handheld device 100, and distinguishing the left and right sides based on the direction in which the user faces Figure 1 the shown laser treatment handheld device 100; the third direction Z is defined as Figure 1 the front and back direction of the shown laser treatment handheld device 100, and taking the side where the user faces Figure 1 the shown laser treatment handheld device 100 as the front side, and the opposite side as the back side. It should be noted that the first direction X, the second direction Y, and the third direction Z of this embodiment are only used to illustrate the laser treatment handheld device 100 of this embodiment, and they do not limit that the laser treatment handheld device 100 must be used vertically. In some examples, the laser treatment handheld device 100 can also be used horizontally. At this time, the first direction X is also the laser output direction.

[0054] The laser treatment handheld device 100 of this embodiment includes a housing 1 and a laser source 2. Among them, the housing 1 has a first end 1a and a second end 1b arranged opposite to each other in the first direction X. The second end 1b is a treatment area 3 on the outer side of the first direction X. A first cavity 4 is provided inside the housing 1, and an optical path outlet 5 penetrating through the second end 1b along the first direction X is opened in the first cavity 4; the laser source 2 extends into the first cavity 4 along the first direction X to emit a laser beam that can be incident into the first cavity 4.

[0055] A lens assembly 6 and an image assembly 7 are provided in the first cavity 4. Among them, the lens assembly 6 receives the laser beam and makes the laser beam shoot towards the optical path outlet 5 along the first direction X, thereby forming a laser focus 17 falling into the treatment area 3; the image assembly 7 is arranged on the circumferential side of the laser beam, and the image assembly 7 faces the second end 1b to obtain an image of the treatment area 3.

[0056] It can be understood that the lens assembly 6 forms a laser focus 17 with the laser beam emitted by the laser source 2. This laser focus 17 is the position where the laser beam converges energy. Therefore, when using this laser treatment handheld device 100 for beauty treatment, the relative position between the laser treatment handheld device 100 and the treated person will be adjusted so that the laser focus 17 can fall within the area where the treated person needs beauty treatment.

[0057] Generally speaking, the treatment area 3 is usually the body surface area of the treated person. For example, this laser treatment handheld device 100 is held by the operator for operation. By aligning this laser treatment handheld device 100 with the body surface of the treated person, at this time, the body surface area of the treated person facing the second end 1b of the housing 1 is the treatment area 3.

[0058] Taking the example of a treated person undergoing foot hair removal, the treated person usually inserts the foot into the protective gear, and the operator moves this laser treatment handheld device 100 above the protective gear so that the optical path outlet 5 is aligned with the opening of the protective gear, so that the laser emitted by this laser treatment handheld device 100 can pass through the opening of the protective gear, and then the laser focus 17 of the laser beam falls on the skin of the treated person to perform hair removal treatment on the skin of the treated person.

[0059] Generally speaking, when the incident power of the laser source 2 remains unchanged, the position of the laser focus 17 formed by the laser beam emitted by the laser source 2 after being refracted / reflected by the lens assembly 6 is certain. Therefore, this laser treatment handheld device 100 can predict the position of the treatment area 3. By adjusting the specifications of the housing 1, it can ensure that the laser focus 17 of the laser beam is outside the housing 1 in the first direction X, and further make the treatment area 3 formed outside the housing 1 in the first direction X.

[0060] The handheld laser treatment device 100 further includes a controller 8, which is used to control the operations of the laser source 2, the lens assembly 6, and the image assembly 7, and the controller 8 is configured to be able to Figure 10 control the operation of the handheld laser treatment device 100 according to the first control process shown, and specifically execute steps S1 - S2:

[0061] S1. When the image of the treatment area 3 has not been acquired, turn on the image assembly 7, acquire the image of the treatment area 3, and mark the treatment targets in the image;

[0062] S2. When the treatment targets are acquired, make the lens assembly 6 focus the laser focus 17 of the laser beam on the treatment targets, and turn on the laser source 2 to make the laser source 2 emit a laser beam.

[0063] Under the control of the controller 8, when the handheld laser treatment device 100 is used for beauty treatment, it can perform the following working process:

[0064] First, turn on the image assembly 7 to collect the picture of the surface of the treated person, that is, the image of the treatment area 3, and then, through image processing technology, mark the treatment targets in the image. According to the location of each treatment target, the controller 8 controls the operation of the lens assembly 6 to align the laser focus 17 of the laser beam with the treatment target. Subsequently, turn on the laser source 2 to make the laser source 2 emit a laser beam, so that the laser focus 17 of the laser beam falls on the treatment target, and perform beauty treatments such as hair removal / freckle removal / acne treatment on the treatment target.

[0065] Through the cooperation of the controller 8, the lens assembly 6, and the image assembly 7, the handheld laser treatment device 100 can collect the image of the treatment area 3, and based on the acquired image of the treatment area 3, analyze and mark the treatment targets shown in the image, so that the laser emitted by the laser source 2 can accurately fall on the treatment targets in the treatment area 3, and further enable the handheld laser treatment device 100 to achieve the treatment effects of accurate focusing and accurate treatment.

[0066] It should be noted that the image assembly 7 can process the images it collects, and it can implement image processing by installing existing image processing modules. For example, taking hair removal processing as an example, the process of the image assembly 7 for image processing can be: cropping the collected image → performing perspective transformation processing on the cropped image → performing sharpening enhancement on the perspectively transformed image → converting the sharpened and enhanced image into a grayscale image → performing Gaussian filtering processing on the grayscale image → performing morphological operation processing on the Gaussian-filtered image → performing edge detection processing on the operation-processed image → performing contour detection processing on the detected image to find the hair follicles → drawing the image to confirm the treatment area 3;

[0067] Alternatively, the process of the image component 7 performing image processing can also be: cropping the captured image → performing perspective transformation processing on the cropped image → performing sharpening enhancement on the perspectively transformed image → converting the sharpened and enhanced image into a grayscale image → performing black hat operation enhancement processing on the grayscale image → performing binarization processing on the image after the black hat operation enhancement → performing contour finding processing on the binarized image → screening the selected contours → performing contour detection processing on the image to find the hair follicles → drawing the image to confirm the treatment area 3.

[0068] Of course, the image processing module will be communicatively connected to the controller 8 to transmit the processed image information, such as the treatment area 3, treatment target, etc., to the controller 8, so that the controller 8 can control the actions of the lens assembly 6 and the laser source 2 based on the processed image information.

[0069] It can be understood that, with the incident power of the laser source 2 remaining unchanged, the position of the laser focus 17 formed after the laser beam emitted by the laser source 2 is refracted / reflected by the lens assembly 6 is fixed. Therefore, the position of the laser focus 17 can be changed by adjusting the lens assembly 6. Thus, the laser treatment handheld device 100 can pre-adjust the lens assembly 6 before the laser source 2 is turned on, so that the laser focus 17 of the laser beam can fall on the treatment target.

[0070] The laser treatment handheld device 100 is suitable for being held and moved by an operator. Therefore, the volume of the laser treatment handheld device 100 needs to be controlled within a certain range to be suitable for the operation of the operator's hand. To improve the integration of the laser treatment handheld device 100, both the lens assembly 6 and the image component 7 can be arranged in the first cavity 4, and the lens assembly 6 and the image component 7 are arranged along the propagation path of the laser beam in the first cavity 4. It should be noted that the propagation path of the laser beam here refers to the propagation path of the laser beam in the first cavity 4. In the first cavity 4, the laser beam emitted from the laser source 2 will first reach the lens assembly 6, and after being reflected and refracted by the lens assembly 6, it will then reach the position where the image component 7 is located.

[0071] It should be noted that, depending on the different images of the treatment area 3 collected, the number of treatment targets marked on each image may also vary, and the number of treatment targets marked in one image can be plural. In view of this situation, the lens assembly 6 of the laser treatment handheld device 100 is configured to be able to adjust the position of the laser focus 17 within the treatment area 3, so that when the current treatment target has completed treatment, such as the hair to be depilated has fallen out or the emission time of the laser beam has reached the preset time, the controller 8 turns off the laser source 2 and controls the lens assembly 6 to act again, so that the laser focus 17 of the laser beam is aligned with the next treatment target, and then repeats the previous irradiation process, thereby performing beauty treatment on all treatment targets within the treatment area 3.

[0072] It is a feasible solution that the lens assembly 6 adjusts the position of the laser focus 17 through the galvanometer group and the field lens 6c. Refer to Figures 3-7 , the lens assembly 6 arranged in the first cavity 4 also has a first direction X, a second direction Y and a third direction Z that are perpendicular to each other in pairs. Moreover, the lens assembly 6 includes a first galvanometer 6a, a second galvanometer 6b and a field lens 6c. Among them, the first galvanometer 6a and the second galvanometer 6b form a galvanometer group. The first galvanometer 6a is configured to be able to rotate around the first direction X to receive the laser beam incident from the second direction Y and emit the laser beam along the third direction Z; the second galvanometer 6b is configured to be able to rotate around the second direction Y to receive the laser beam incident from the first galvanometer 6a and emit the laser beam along the first direction X; the field lens 6c is arranged on the side of the second galvanometer 6b facing the second end 1b to receive the laser beam incident from the second galvanometer 6b. The field lens 6c is fixedly arranged below the second galvanometer 6b to magnify the laser focus 17 of the laser beam reflected by the first galvanometer 6a and the second galvanometer 6b and ensure that the laser focus 17 is uniform.

[0073] The first galvanometer 6a and the second galvanometer 6b can be driven by the servo motor 9 to achieve angle adjustment. With the cooperation of the first galvanometer 6a and the second galvanometer 6b, the laser beam incident into the first cavity 4 can be reflected by the first galvanometer 6a and then emitted along the third direction Z to the second galvanometer 6b, and then be reflected by the second galvanometer 6b and emitted towards the optical path outlet 5 along the first direction X. Moreover, when the first galvanometer 6a rotates around the first direction X, the incident position of the laser beam on the first galvanometer 6a will change in the second direction Y, so that the laser focus 17 will correspondingly move in the second direction Y; when the second galvanometer 6b rotates around the second direction Y, the incident position of the laser beam on the second galvanometer 6b will change in the third direction Z, so that the laser focus 17 will correspondingly move in the third direction Z. In this way, the laser treatment handheld device 100 can realize the position adjustment of the laser focus 17 in the two-dimensional plane.

[0074] It should be noted that the laser beam that the first galvanometer 6a can receive needs to be incident along the second direction Y. However, in this embodiment, the laser source 2, which is used as an example for illustration, extends into the first cavity 4 along the first direction X. Therefore, the laser beam emitted by the laser source 2 will also propagate in the first cavity 4 along the first direction X. Therefore, for the laser treatment handheld device 100 of this embodiment, refer to Figures 3-7 , as an example of this embodiment, the lens assembly 6 further includes a reflecting mirror 6d. The reflecting mirror 6d is arranged towards the second direction Y to receive the laser beam incident from the laser source 2 and emit the laser beam along the second direction Y. In this way, when the laser source 2 extends into the first cavity 4 along the first direction X, the laser beam will be incident on the reflecting mirror 6d along the first direction X and then be incident on the first galvanometer 6a through the reflecting mirror 6d.

[0075] Of course, in this embodiment, the laser source 2 extends into the first cavity 4 along the first direction X, which can ensure that the laser beam is not interfered by dust during propagation in the lens assembly 6 and reduce the influence of dust on the propagation of the laser beam.

[0076] Refer to Figure 11 , under the cooperation of the first galvanometer 6a and the second galvanometer 6b, the controller 8 is configured to be able to control the operation of the laser treatment handheld device 100 according to Figure 11 the second control flow shown, and specifically execute steps S1 - S4:

[0077] S1. When the image of the treatment area 3 has not been acquired, turn on the image component 7, acquire the image of the treatment area 3, and mark the treatment target in the image;

[0078] S2. When the treatment target is acquired, control the first galvanometer 6a and / or the second galvanometer 6b to rotate so that the laser focus 17 of the laser beam moves in a moving coordinate system composed of two axes, so that the laser focus 17 of the laser beam is aligned with the current treatment target. Among them, the first axis of the moving coordinate system is the second direction Y, and the second axis of the moving coordinate system is the third direction Z;

[0079] S3. Turn on the laser source 2 to make the laser source 2 emit a laser beam to treat the first treatment target;

[0080] S4. When the treatment of the current treatment target ends, turn off the laser source 2, and again control the first galvanometer 6a and / or the second galvanometer 6b to rotate so that the laser focus 17 of the laser beam moves to the next treatment target, and repeat the previous step S3 to treat the next treatment target.

[0081] It can be understood that to achieve image acquisition of the treatment area 3, the image component 7 is configured with a camera 7a, which is arranged towards the second end 1b of the housing 1 to photograph the treatment area 3, thereby acquiring an image of the treatment area 3. To ensure the clarity of the image captured by the camera 7a, refer to Figures 3-7 , as an example of this embodiment, the image component 7 can also be configured with an illumination light source 7b, which is arranged towards the second end 1b of the housing 1, so that the light emitted by the illumination light source 7b can irradiate the treatment area 3. Moreover, since the image component 7 is arranged on the propagation path of the laser beam, to avoid the image component 7 obstructing the propagation of the laser beam, the illumination light source 7b can be arranged around the region cylinder 10 of the laser beam, so that the illumination light source 7b can avoid the laser beam and prevent interference between the illumination light source 7b and the laser beam.

[0082] It should be noted that the region cylinder 10 of the laser beam refers to the cylinder shape formed by the region cylinder surface. Specifically, the region cylinder surface is based on the boundary of the region where the laser beam moves in the moving coordinate system, and takes the first direction X as the moving direction. When the generatrix moves parallel along the first direction X, the formed surface. Therefore, the laser beam output by the lens component 6 only moves and adjusts within the region cylinder 10 and will not extend outside the region cylinder 10.

[0083] It should be noted that after the image component 7 completes the image acquisition of the treatment area 3, the illumination light source 7b can be turned off, so as to avoid the light emitted by the illumination light source 7b affecting the laser beam.

[0084] To improve the integration of the laser treatment handheld device 100, refer to Figures 3-7 , as an example of this embodiment, the camera 7a can be arranged on the side of the illumination light source 7b facing the second end 1b, and the camera 7a is built into the first cavity 4 and arranged adjacent to the region cylinder 10. In this way, not only can the radial dimension of the laser treatment handheld device 100 be reduced to meet the requirement of miniaturization of the device volume, but also the camera 7a can be closer to the position where the laser beam is located. In this way, the focal position of the image captured by the camera 7a is closer to the laser focus 17 of the laser beam, which is beneficial to the coordinate conversion of the image position and the laser focus 17 position during the image processing process, improving the efficiency of the image component 7 to complete the image processing. Moreover, combined with the design of the camera 7a arranged towards the second end 1b of the housing 1, the shooting direction of the camera 7a is the same as the outgoing direction of the laser direction, so that the image captured by the camera 7a is closer to the situation of observing the treatment area 3 in the first direction X, and the position adjustment of the laser focus 17 can be made more accurate.

[0085] It should be noted that when the laser therapy handheld device 100 is used for treatment, the second end 1b of the shell 1 will be connected to the protective gear. At this time, if the camera 7a extends into the first cavity 4, the camera 7a will be too close to the body surface of the patient, which may easily cause the camera 7a to be unable to capture clear images. Therefore, the laser therapy handheld device 100 has the camera 7a built into the first cavity 4. In this way, the shell 1 can not only provide structural protection for the camera 7a, but also make the distance between the camera 7a and the body surface of the patient longer, which is more conducive to focusing the camera 7a.

[0086] Of course, the camera 7a is arranged on the side of the illumination light source 7b facing the second end 1b, which will block the light emitted by the illumination light source 7b to a certain extent. Therefore, the laser treatment handheld device 100 also improves the illumination light source 7b. Figures 3-7 As an example of this embodiment, the illumination light source 7b includes a lamp holder 7b1, a light source 7b2 and a light homogenizing plate 7b3, wherein the lamp holder 7b1 is provided with a second light-transmitting hole 11, and the second light-transmitting hole 11 penetrates the lamp holder 7b1 in the first direction X; the light source 7b2 is provided on the lamp holder 7b1, and is arranged around the second light-transmitting hole 11, and avoids the area where the camera 7a is located; the light homogenizing plate 7b3 is arranged between the light source 7b2 and the camera 7a, and the light homogenizing plate 7b3 is provided with a third light-transmitting hole 16 communicating with the second light-transmitting hole 11, so that the laser beam can pass through the second light-transmitting hole 11 and the third light-transmitting hole 16 to reach the optical path exit 5.

[0087] The light source 7b2 can be a plurality of lamp beads arranged at intervals around the second light-transmitting hole 11, or a light strip can be arranged around the second light-transmitting hole 11. In this way, when the light source 7b2 is working, the space below the light source 7b2 can be filled with light, and with the cooperation of the light homogenizing plate 7b3, the light emitted by the light source 7b2 will be homogenized by the light homogenizing plate 7b3, so that the brightness below the light source 7b2 is uniform. In this way, even if the camera 7a blocks the optical light emitted by the lighting source 7b to a certain extent, the brightness below the lighting source 7b will not be affected too much, and can meet the shooting needs of the camera 7a.

[0088] It should be noted that if the arrangement positions of the lens assembly 6 and the image assembly 7 do not match, when the lens assembly 6 and the image assembly 7 are integrated in the first cavity 4, it is easy to waste space, affect the space utilization rate inside the first cavity 4, and affect the structural compactness of the laser treatment handheld device 100. Figures 3-7, as an example of this embodiment, the first cavity 4 includes a first chamber 4a and a second chamber 4b. The first chamber 4a communicates with the second chamber 4b in the first direction X. And, a fixed seat 12 is provided in the second chamber 4b. A first light-transmitting hole 13 penetrating in the first direction X is provided in the fixed seat 12. And the fixed seat 12 is provided with a notch 12a that communicates the periphery of the first light-transmitting hole 13 with the outside of the fixed seat 12. Also, the first galvanometer mirror 6a and the second galvanometer mirror 6b are arranged in the first chamber 4a. The field lens 6c is installed into the first light-transmitting hole 13 through the notch 12a. And the image assembly 7 is connected to the side of the fixed seat 12 away from the first chamber 4a and is arranged around the first light-transmitting hole 13. Of course, the aperture of the first light-transmitting hole 13 will be greater than or equal to the outer diameter of the regional cylinder 10 to ensure that the laser beam can pass through the first light-transmitting hole 13 when adjusting the position.

[0089] By dividing the first cavity 4 into the first chamber 4a and the second chamber 4b and reasonably distributing the positions of the first galvanometer mirror 6a, the second galvanometer mirror 6b, the field lens 6c, and the image assembly 7, the laser treatment handheld device 100 can control its axial dimension (the dimension in the first direction X), radial dimensions (the dimensions in the second direction Y and the third direction Z) within a reasonable range. And, under the action of the fixed seat 12, the field lens 6c can maintain a fixed position to ensure the stability of the optical path. And the field lens 6c can maintain a sufficient spacing distance from the first galvanometer mirror 6a and the second galvanometer mirror 6b to meet the propagation requirements of the optical path. And the image assembly 7 connected to the other side of the fixed seat 12 can keep the illumination light source 7b and the camera 7a sufficiently away from the optical path outlet 5. This can not only enable the camera 7a to better capture high-definition images but also prevent the laser treatment handheld device 100 from being damaged by an external impact on the camera 7a during application. Of course, the housing 1 is also provided with an opening communicating with the second cavity to lead out the wires of the camera 7a and the image assembly 7 and connect them to an external power supply.

[0090] In addition, referring to Figures 3-7 , as an example of this embodiment, a protective mirror 19 is provided in the first cavity 4. The protective mirror 19 is arranged between the field lens 6c and the image assembly 7 to seal the side of the field lens 6c facing the second end 1b. In this way, it can be ensured that the field lens 6c, the first galvanometer mirror 6a, and the second galvanometer mirror 6b are protected from external collisions.

[0091] It should be noted that the body surface of a human body is not a flat plane. When a laser beam hits the body surface of a human body, a diffuse reflection phenomenon will occur. The light of the diffuse reflection may enter the inside of the housing 1 reversely, affecting the normal transmission of the laser beam. In this regard, referring to Figures 8-9, as an example of this embodiment, a cover 14 is connected to the second end 1b of the housing 1. A second cavity 18 is provided in the cover 14. The second cavity 18 communicates with the first cavity 4 through an optical path outlet 5. Moreover, the cover 14 extends along the first direction X, and a polarizer 15 is provided at one end of the cover 14 away from the housing 1 in the first direction X.

[0092] By sealing the lower end of the cover 14 with the polarizer 15, the sealing performance of the first cavity 4 and the second cavity 18 can be improved, preventing dust from easily entering the first cavity 4 and the second cavity 18 and contaminating the lenses inside the housing 1, such as the first galvanometer 6a, the second galvanometer 6b, and the field lens 6c. Under the action of the polarizer 15, after the laser beam passes through the polarizer 15, the laser beam will become polarized light. In this way, when the laser beam hits the skin surface of the patient, the unabsorbed laser beam will emit diffuse reflection. Under the action of the polarizer 15, the light reflected towards the inside of the housing 1 will be blocked by the polarizer 15 and cannot return to the inside of the housing 1, thereby achieving the purpose of eliminating the influence of diffuse reflection on the laser beam.

[0093] Of course, in the case of providing the polarizer 15, the laser beam should also be polarized light. Taking the P-type polarizer 15 as an example, the transmittance of the P-type polarizer 15 for P-polarized light is 99.9%, and the reflectivity for S-polarized light is more than 90%. Therefore, when the polarization state of the laser beam is P light, the laser beam can smoothly pass through the polarizer 15. Moreover, when the laser beam hits the skin surface of the patient, the unabsorbed laser beam will emit diffuse reflection. At this time, most of the emitted light is S-polarized light. Therefore, when the reflected light hits the polarizer 15, it will be reflected by the polarizer 15 and cannot return to the inside of the housing 1.

[0094] It should be noted that the body surface contour of the human body usually has a curvature. Therefore, the polarizer 15 of this laser treatment handheld device 100 is a plane lens, and the polarizer 15 is located at the end of the cover 14 away from the housing 1 in the first direction X. In this way, when this laser treatment handheld device 100 is applied, the operator can press the laser treatment handheld device 100 with the cover 14 and the polarizer 15 on the skin of the patient. Under the pressing of the polarizer 15, a plane will be formed in the body surface area where the patient fits with the polarizer 15. At this time, the body surface area where the patient fits with the polarizer 15 is also the treatment area 3. The camera 7a facing the treatment area 3 can easily capture a two-dimensional plane image, avoiding the situation where the image does not match the body surface contour of the human body, ensuring that the laser focus 17 of the laser beam falls on the expected position. Moreover, by using the polarizer 15 to fit the skin of the patient, the polarizer 15 itself can also cool the skin of the patient, improving the comfort of the patient during the treatment process.

[0095] In addition, when the polarizer 15 is provided, the light emitted by the image component 7 is also polarized light and is adapted to the polarizer 15 to prevent the polarizer 15 from blocking the illumination light from passing through.

[0096] It should be noted that when the housing 14 and the polarizer 15 are provided, the laser focus 17 of the laser beam should be arranged outside the polarizer 15 in the first direction X to ensure that the energy of the laser beam can act on the skin of the patient. Of course, in this case, the treatment area 3 of the laser treatment hand-held device 100 is also outside the polarizer 15 in the first direction X.

[0097] In summary, the embodiment of the present invention provides a laser treatment hand-held device 100. By setting the lens assembly 6 and the image assembly 7 that cooperate with each other, the laser treatment hand-held device 100 can use the image assembly 7 to obtain an image of the treatment area 3, analyze and mark the treatment target displayed in the image, so that the laser emitted by the laser source 2 can accurately fall on the treatment target in the treatment area 3. Furthermore, the laser treatment hand-held device 100 can achieve the treatment effects of precise focusing and precise treatment to solve the problem that the existing laser instruments cannot achieve precise treatment.

[0098] Moreover, by integrating the lens assembly 6 and the image assembly 7 into the first cavity 4 of the housing 1, the laser treatment hand-held device 100 not only has a high integration degree, the device volume can be effectively controlled, and it is suitable for the operator to hold and operate, but also makes the image assembly 7 of the laser treatment hand-held device 100 and the treatment area 3 on the same axis, and the image assembly 7 is closer to the landing position of the laser beam. Thus, the moving coordinate system fits better with the treatment area 3, and the controller 8 can drive the laser focus 17 to adjust the position more accurately and quickly along the moving coordinate system.

[0099] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A handheld laser treatment device, characterized in that: The invention comprises a housing, a laser source and a controller, wherein the housing has a first end and a second end arranged opposite to each other in a first direction, the second end is a treatment area outside the first direction, and a first cavity is arranged in the housing, and the first cavity is provided with an optical path outlet passing through the second end along the first direction; the laser source is used to emit a laser beam incident into the first cavity; and A lens assembly and an image assembly are disposed in the first cavity, wherein the lens assembly receives the laser beam and directs the laser beam toward the optical path exit along the first direction, thereby forming a laser focus falling into the treatment area; the image assembly is disposed on the periphery of the laser beam, and the image assembly is disposed toward the second end, so as to obtain an image of the treatment area; and The controller is used to control the actions of the laser source, the lens assembly and the image assembly, and the controller is configured as follows: In the case where the image of the treatment area is not obtained, the image component is turned on to obtain the image of the treatment area and mark the treatment target in the image; When the treatment target is acquired, the lens assembly is made to place the laser focus of the laser beam on the treatment target, and the laser source is turned on to emit the laser beam.

2. The laser therapy handheld device according to claim 1, characterized in that: The lens assembly is configured to be able to adjust the position of the laser focus within the treatment area, and has a first direction, a second direction and a third direction that are perpendicular to each other, and the lens assembly includes: a first galvanometer mirror, wherein the first galvanometer mirror is configured to be rotatable about the first direction to receive the laser beam incident from the second direction and emit the laser beam along the third direction; a second galvanometer mirror, wherein the second galvanometer mirror is configured to be rotatable about the second direction to receive the laser beam incident from the first galvanometer mirror and emit the laser beam along the first direction; A field lens is arranged on a side of the second galvanometer mirror facing the second end to receive the laser beam incident from the second galvanometer mirror.

3. The laser treatment handheld device according to claim 2, characterized in that: The controller is also configured to: When marking the treatment target, the first galvanometer and / or the second galvanometer is controlled to rotate so that the laser focus of the laser beam moves in a moving coordinate system composed of two axial directions, so that the laser focus of the laser beam falls on the treatment target, wherein the first axial direction of the moving coordinate system is the second direction, and the second axial direction of the moving coordinate system is the third direction.

4. The laser treatment handheld device according to claim 2, characterized in that: The lens assembly further includes a reflector, which is arranged toward the second direction to receive the laser beam incident from the laser source and emit the laser beam along the second direction; Furthermore, the laser source extends into the first cavity along the first direction, so that the laser beam is incident on the reflector along the first direction.

5. The laser treatment handheld device according to claim 2, characterized in that: The first cavity includes a first chamber and a second chamber, the first chamber is connected to the second chamber in the first direction, and, A fixing seat is disposed in the second chamber, a first light-transmitting hole is disposed in the fixing seat and is arranged to penetrate in the first direction, and a notch is disposed in the fixing seat, and the notch communicates the periphery of the first light-transmitting hole with the outside of the fixing seat; and, The first galvanometer and the second galvanometer are arranged in the first chamber, the field lens is installed in the first light-transmitting hole through the notch, and the image component is connected to the side of the fixing base away from the first chamber and arranged around the first light-transmitting hole.

6. The laser treatment handheld device according to claim 5, characterized in that: A protective mirror is arranged in the first cavity, and the protective mirror is arranged between the field lens and the image component to seal the side of the field lens facing the second end.

7. The laser treatment handheld device according to claim 1, characterized in that: The lens assembly and the image assembly are arranged in the first cavity along the propagation path of the laser beam, and the image assembly includes: an illumination light source, the illumination light source being arranged around the area column of the laser beam and disposed toward the second end to illuminate the treatment area; A camera is arranged on a side of the illumination light source facing the second end, is built into the first cavity, and is arranged adjacent to the regional column; and the camera is arranged toward the second end to photograph the treatment area.

8. The laser treatment handheld device according to claim 7, characterized in that: The lighting source comprises: A lamp holder, wherein the lamp holder is provided with a second light-transmitting hole, and the second light-transmitting hole penetrates the lamp holder in the first direction; A light source, the light source is disposed on the lamp holder, arranged around the second light-transmitting hole, and avoids the area where the camera is located; A light diffuser is arranged between the light source and the camera, and a third light transparent hole communicating with the second light transparent hole is provided on the light diffuser.

9. The laser treatment handheld device according to claim 1, characterized in that: The second end of the housing is connected to a cover shell, a second cavity is arranged in the cover shell, the second cavity is connected to the first cavity through the light path outlet, and, The cover shell extends along the first direction, and a polarizing plate is disposed at one end of the cover shell away from the housing in the first direction, and the outer side of the polarizing plate in the first direction is a treatment area.

10. The laser treatment handheld device according to claim 9, characterized in that: The light emitted by the image component is polarized light and is compatible with the polarizer.

Images