A laser treatment hand-held device

Abstract

The application discloses a kind of laser treatment handheld device, it is related to medical instrument technical field, shell, laser source and controller, shell has the first end and second end oppositely arranged in first direction, second end is treatment area outside in first direction, and first cavity is arranged in shell, first cavity is opened with the light path export of second end along first direction is penetrated;Laser source is used to emit incident into the laser beam of first cavity;And, first cavity is provided with lens assembly and image component, by controlling the action of lens assembly and image component, this laser treatment handheld device can obtain the image of treatment area using image component, and the treatment target shown in image is analyzed, labeled, so that the laser emitted by laser source can accurately fall on the treatment target in treatment area, to further make this laser treatment handheld device can reach the treatment effect of accurate treatment, to solve the problem that existing laser instrument cannot realize accurate treatment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a laser treatment handheld device. BACKGROUND

[0002] Laser beauty is a treatment method that transmits a laser beam of a specific wavelength through the epidermis and dermis of the human body to destroy pigment cells and pigment particles in the human body, thereby achieving a beauty effect. The fragments generated by the destruction of pigment cells and pigment particles are absorbed by macrophages in the human body, making laser beauty safer and scar-free compared to traditional beauty methods.

[0003] Currently, laser instruments used for skin spot removal treatment and hair removal treatment mostly rely on manual positioning operation by human eye vision, and the laser beams emitted by the instruments can only be randomly treated within the window area, which cannot achieve precise treatment, resulting in that these laser instruments are more likely to damage the surrounding skin of the user and have insufficient safety. SUMMARY

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

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] A laser treatment handheld device, comprising a shell, a laser source and a controller, the shell has a first end and a second end arranged oppositely in a first direction, the second end is a treatment area outside the first direction, and a first cavity is arranged in the shell, the first cavity is provided with a light 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,

[0007] The first cavity is provided with a lens assembly and an image assembly, wherein the lens assembly receives the laser beam and makes the laser beam shoot towards the light path outlet along the first direction, thereby forming a laser focal point falling into the treatment area; the image assembly is arranged on the side of the laser beam, and the image assembly is arranged towards 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 where the image of the treatment area is not obtained, the image assembly is turned on to obtain the image of the treatment area, and a treatment target in the image is labeled.

[0010] In the case of acquiring the treatment target, the lens assembly is caused to drop the laser focal point of the laser beam on the treatment target, and the laser source is turned on to cause the laser source to emit a laser beam.

[0011] In some embodiments, the lens assembly is configured to adjust the position of the laser focal point in the treatment area, has a first direction, a second direction and a third direction perpendicular to each other in pairs, and comprises:

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

[0013] A second galvanometer mirror configured to rotate around the second direction to receive a laser beam incident from the first galvanometer mirror and emit the laser beam along the first direction;

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

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

[0016] In the case of marking the treatment target, the first galvanometer mirror and / or the second galvanometer mirror are controlled to rotate to move the laser focal point of the laser beam in a moving coordinate system composed of two axes, so that the laser focal point of the laser beam falls on the treatment target, wherein 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 comprises a reflecting mirror arranged towards the second direction to receive a 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 reflecting mirror 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 comprises:

[0020] An illumination light source arranged around the area column of the laser beam and arranged towards the second end to illuminate the treatment area;

[0021] A camera is arranged on a side of the illumination light source facing the second end, built-in the first cavity, and arranged adjacent to the area column; and the camera is arranged towards the second end to shoot the treatment area.

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

[0023] A lamp holder is provided with a second light-transmitting hole penetrating through the lamp holder in the first direction;

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

[0025] A light-uniformizing plate is arranged between the lamp source and the camera, and the light-uniformizing plate is provided with a third light-transmitting hole communicating with the second light-transmitting hole.

[0026] In some embodiments, the first cavity comprises a first chamber and a second chamber, the first chamber and the second chamber communicate in the first direction, and,

[0027] The second chamber is provided with a fixing seat, the fixing seat is provided with a first light-transmitting hole penetratingly arranged in the first direction, and the fixing seat is provided with a notch, the notch communicates the outer side of the fixing seat with the periphery of the first light-transmitting hole; and,

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

[0029] In some embodiments, the first cavity is provided with a protective mirror, the protective mirror is arranged between the field lens and the image assembly to seal a side of the field lens facing the second end.

[0030] In some embodiments, the second end of the shell is connected with a cover shell, the cover shell is provided with a second cavity, the second cavity communicates with the first cavity through the light path outlet, and,

[0031] The cover shell extends in the first direction, and the cover shell is provided with a polarizing plate at an end of the cover shell away from the shell in the first direction, and the outside of the polarizing plate in the first direction is a treatment area.

[0032] In some embodiments, the light emitted by the image assembly is polarized light, and the polarized light is matched with the polarizing plate.

[0033] Compared with the prior art, the laser treatment handheld device has the beneficial effects that:

[0034] The laser treatment handheld device of the present application can obtain the image of the treatment area by the image assembly, 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, and the laser treatment handheld device can achieve the treatment effect of accurate focusing and accurate treatment, thereby solving the problem that the existing laser instrument cannot achieve accurate treatment.

[0035] In addition, the image assembly and the treatment area of the laser treatment handheld device are on the same axis, and the image assembly is closer to the landing position of the laser beam, so that the moving coordinate system is more consistent with the treatment area, and the controller drives the laser focal point to adjust the position along the moving coordinate system more accurately and quickly. BRIEF DESCRIPTION OF DRAWINGS

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

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

[0038] Figure 3 is Figure 2 a perspective view of the A-A section 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 focal point in the structure shown;

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

[0042] Figure 7 is a schematic diagram of the fixing seat in the embodiment of the present application;

[0043] Figure 8 is a schematic diagram of the laser treatment handheld device in the embodiment of the present application with a cover and a polarizing plate;

[0044] Figure 9 is Figure 8A cross-sectional schematic diagram of the structure shown;

[0045] Figure 10 This is a flowchart illustrating the execution of the first control process by the controller in an embodiment of the present invention;

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

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

[0048] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0049] In the description of this invention, it should be understood that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to that other element. The terms "mounted," "connected," and "attached" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] In the description of this invention, it should be understood that the terms "height," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this invention to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

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

[0052] Example

[0053] refer to Figures 1-11 This invention provides a handheld laser therapy device 100, which has a first direction X, a second direction Y, and a third direction Z that are mutually perpendicular. The first direction X is defined as the laser output direction. Figure 1 The laser therapy handheld device 100 shown is positioned vertically and horizontally. Figure 1 The laser output of the handheld laser therapy device 100 shown is defined as follows: one side is the lower / below / lower end, and the opposite side is the upper / above / upper end; the second direction Y is defined as... Figure 1 The laser therapy handheld device 100 shown is positioned in the left-right direction, facing the user. Figure 1 The laser therapy handheld device 100 shown is oriented to distinguish between the left and right sides; the third direction Z is defined as... Figure 1 The laser therapy handheld device 100 shown is positioned in the front-back direction, facing the user. Figure 1 The laser therapy handheld device 100 shown has one side as the front and the opposite side as the rear. It should be noted that the first direction X, the second direction Y, and the third direction Z in this embodiment are only used to illustrate the laser therapy handheld device 100 of this embodiment, and do not limit the use of the laser therapy handheld device 100 to vertical. In some examples, the laser therapy handheld device 100 can also be used horizontally; in this case, the first direction X is also the laser output direction.

[0054] The laser therapy handheld device 100 of this embodiment includes a housing 1 and a laser source 2. The housing 1 has a first end 1a and a second end 1b arranged opposite to each other in a first direction X. The second end 1b is a treatment area 3 outside the first direction X. A first cavity 4 is provided inside the housing 1. The first cavity 4 has an optical path outlet 5 that passes through the second end 1b along the first direction X. The laser source 2 extends into the first cavity 4 along the first direction X to emit a laser beam that can enter the first cavity 4.

[0055] The first cavity 4 is provided with a lens assembly 6 and an image assembly 7. The lens assembly 6 receives the laser beam and directs the laser beam along the first direction X toward the optical path exit 5, thereby forming a laser focus 17 that falls into the treatment area 3. The image assembly 7 is arranged around the laser beam and is positioned toward the second end 1b to acquire an image of the treatment area 3.

[0056] It is understood that the lens assembly 6 causes the laser beam emitted by the laser source 2 to form a laser focus 17, which is the position where the laser beam focuses energy. Therefore, when using this laser treatment handheld device 100 for cosmetic treatment, the relative position between the laser treatment handheld device 100 and the patient will be adjusted so that the laser focus 17 can fall on the area where the patient needs cosmetic treatment.

[0057] Generally speaking, the treatment area 3 is usually the area on the patient's body surface. For example, this laser treatment handheld device 100 is for the operator to hold and operate. By aligning this laser treatment handheld device 100 with the patient's body surface, the area on the patient's body surface that is directly opposite the second end 1b of the housing 1 is the treatment area 3.

[0058] Taking foot hair removal as an example, the patient usually puts their foot inside the protective gear. The operator moves the handheld laser treatment device 100 above the protective gear so that the light path outlet 5 is aligned with the opening of the protective gear. This allows the laser emitted by the handheld laser treatment device 100 to pass through the opening of the protective gear, and the laser beam focus 17 falls on the patient's skin to remove hair.

[0059] Generally speaking, when the incident power of the laser source 2 remains unchanged, the laser beam emitted by the laser source 2, after being refracted / reflected by the lens assembly 6, forms a laser focal point 17 with a fixed position. Therefore, the handheld laser therapy device 100 can predict the location of the treatment area 3. By adjusting the specifications of the housing 1, it can ensure that the laser focal point 17 of the laser beam is located outside the housing 1 in the first direction X, thereby making the treatment area 3 formed outside the housing 1 in the first direction X.

[0060] This handheld laser therapy device 100 also includes a controller 8, which controls the movement of the laser source 2, lens assembly 6, and image assembly 7, and is configured to... Figure 10 The first control process shown controls the action of this laser therapy handheld device 100, specifically executing steps S1-S2:

[0061] S1. Without acquiring an image of treatment area 3, activate image component 7, acquire an image of treatment area 3, and label the treatment targets within the image;

[0062] S2. When the treatment target is acquired, the lens assembly 6 focuses the laser beam 17 onto the treatment target and turns on the laser source 2 to emit the laser beam.

[0063] Controlled by the controller 8, this handheld laser treatment device 100, when used for cosmetic treatment, can perform the following working process:

[0064] First, the image component 7 is activated to capture an image of the patient's body surface, i.e., the image of the treatment area 3. Then, through image processing technology, the treatment targets are marked in the image. Based on the location of each treatment target, the controller 8 controls the movement of the lens component 6 to align the laser beam's focal point 17 with the treatment target. Subsequently, the laser source 2 is activated to emit a laser beam, thereby ensuring that the laser beam's focal point 17 falls on the treatment target, performing cosmetic treatments such as hair removal, freckle removal, and acne treatment.

[0065] Through the cooperation of the controller 8, lens assembly 6 and image assembly 7, this handheld laser therapy device 100 can acquire images of the treatment area 3, and based on the acquired images of the treatment area 3, analyze and label the treatment targets displayed in the images, so that the laser emitted by the laser source 2 can accurately fall on the treatment targets in the treatment area 3, thereby enabling the handheld laser therapy device 100 to achieve the therapeutic effect of precise focusing and precise treatment.

[0066] It should be noted that the image component 7 can process the images it acquires. It can achieve image processing by incorporating an existing image processing module. For example, taking hair removal as an example, the image processing process of the image component 7 can be as follows: cropping the acquired image → performing perspective transformation on the cropped image → sharpening and enhancing the perspective-transformed image → converting the sharpened and enhanced image into a grayscale image → performing Gaussian filtering on the grayscale image → performing morphological operations on the Gaussian-filtered image → performing edge detection on the processed image → performing contour detection on the detected image to locate hair follicles → drawing the image to confirm the treatment area 3;

[0067] Alternatively, the image processing procedure of image component 7 can also be as follows: cropping the acquired image → performing perspective transformation on the cropped image → sharpening and enhancing the perspective-transformed image → converting the sharpened and enhanced image into a grayscale image → performing black hat operation enhancement on the grayscale image → binarizing the image after black hat operation enhancement → performing contour lookup processing on the binarized image → filtering the selected contours → performing contour detection processing on the image to find hair follicles → drawing the image to confirm the treatment area 3.

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

[0069] It is understandable that, with the incident power of the laser source 2 remaining constant, the position of the laser focus 17 formed by the laser beam emitted by the laser source 2 after refraction / reflection 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, this handheld laser therapy 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] This handheld laser therapy device 100 is designed for handheld movement by the operator; therefore, its size needs to be controlled within a certain range to suit the operator's hand operation. To improve the integration of the handheld laser therapy device 100, both the lens assembly 6 and the image assembly 7 can be arranged within the first cavity 4, and these components are arranged along the propagation path of the laser beam within the first cavity 4. It should be noted that the propagation path of the laser beam refers to the path within the first cavity 4. Within the first cavity 4, the laser beam emitted from the laser source 2 first reaches the lens assembly 6, and after reflection and refraction by the lens assembly 6, it reaches the location of the image assembly 7.

[0071] It should be noted that the number of treatment targets marked in each image may vary depending on the different images of the treatment area 3 collected, and there may be multiple treatment targets marked in one image. In response to this, the lens assembly 6 of this laser treatment handheld device 100 is configured to adjust the position of the laser focus 17 within the treatment area 3. This allows the laser treatment handheld device 100 to turn off the laser source 2 and control the lens assembly 6 again after the current treatment target has finished treatment, such as when the hair to be removed has been removed or the laser beam emission time has reached the preset time. The controller 8 then controls the lens assembly 6 to focus the laser beam focus 17 on the next treatment target, and repeats the previous irradiation process, thereby performing cosmetic treatment on all treatment targets within the treatment area 3.

[0072] Lens assembly 6, through the galvanometer group and field lens 6c, achieves position adjustment of the laser focus 17, which is a feasible solution. (Reference) Figures 3-7 The lens assembly 6, arranged within the first cavity 4, also has three mutually perpendicular directions: a first direction X, a second direction Y, and a third direction Z. The lens assembly 6 includes a first galvanometer 6a, a second galvanometer 6b, and a field lens 6c. The first galvanometer 6a and the second galvanometer 6b form a galvanometer group. The first galvanometer 6a is configured to rotate around the first direction X to receive a 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 rotate around the second direction Y to receive a laser beam incident from the first galvanometer 6a and emit the laser beam along the first direction X. The field lens 6c is disposed on the side of the second galvanometer 6b facing the second end 1b to receive a 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 to 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. After being reflected by the second galvanometer 6b, it is emitted along the first direction X towards the optical path exit 5. When the first galvanometer 6a rotates around the first direction X, the incident position of the laser beam in the first galvanometer 6a will change in the second direction Y, thereby causing the laser focus 17 to move accordingly in the second direction Y. When the second galvanometer 6b rotates around the second direction Y, the incident position of the laser beam in the second galvanometer 6b will change in the third direction Z, thereby causing the laser focus 17 to move accordingly in the third direction Z. In this way, the laser therapy handheld device 100 can achieve position adjustment of the laser focus 17 in a two-dimensional plane.

[0074] It should be noted that the laser beam that the first galvanometer 6a can accept needs to be incident along the second direction Y. However, the laser source 2, which is used as an example in this embodiment, extends into the first cavity 4 along the first direction X. Therefore, the laser beam emitted by the laser source 2 will also propagate within the first cavity 4 along the first direction X. Therefore, the laser therapy handheld device 100 of this embodiment, referring to... Figures 3-7 As an example of this embodiment, the lens assembly 6 also includes a reflector 6d, which is arranged in 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 reflector 6d along the first direction X and then incident on the first galvanometer 6a via the reflector 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 disturbed by dust when it propagates in the lens assembly 6, and reduce the influence of dust on the propagation of the laser beam.

[0076] refer to Figure 11 With the cooperation of the first galvanometer 6a and the second galvanometer 6b, the controller 8 is configured to be able to... Figure 11 The second control process shown controls the action of this laser therapy handheld device 100, specifically executing steps S1-S4:

[0077] S1. Without acquiring an image of treatment area 3, activate image component 7, acquire an image of treatment area 3, and label the treatment targets within 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, wherein 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 laser source 2 to emit a laser beam to treat the first treatment target;

[0080] S4. When the current treatment target has finished treatment, turn off the laser source 2, and control the first galvanometer 6a and / or the second galvanometer 6b to rotate again, 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] Understandably, to achieve image acquisition of the treatment area 3, the image assembly 7 is equipped with a camera 7a, which is positioned facing the second end 1b of the housing 1 to capture images of the treatment area 3. To ensure the clarity of the images captured by the camera 7a, refer to... Figures 3-7 As an example of this embodiment, the image component 7 may also be configured with an illumination source 7b, which is positioned toward the second end 1b of the housing 1, so that the light emitted by the illumination source 7b can illuminate the treatment area 3. Furthermore, since the image component 7 is arranged in the propagation path of the laser beam, in order to avoid the image component 7 obstructing the propagation of the laser beam, the illumination source 7b may be arranged around the region column 10 of the laser beam, thereby allowing the illumination source 7b to avoid interference with the laser beam.

[0082] It should be noted that the region cylinder 10 of the laser beam refers to the cylindrical shape formed by the region cylinder surface. Specifically, the region cylinder surface is the curved surface formed when the generatrix moves parallel to the first direction X, with the region boundary of the laser beam moving within the moving coordinate system as the guideline and the first direction X as the direction of movement. Therefore, the laser beam output by the lens assembly 6 only moves and adjusts within the region cylinder 10 and will not extend beyond 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 source 7b can be turned off, so as to avoid the light emitted by the illumination source 7b affecting the laser beam.

[0084] To improve the integration of this handheld laser therapy device 100, reference is made to... Figures 3-7 As an example of this embodiment, the camera 7a can be arranged on the side of the illumination source 7b facing the second end 1b. Furthermore, the camera 7a is built into the first cavity 4 and arranged near the regional column 10. This not only reduces the radial dimension of the laser therapy handheld device 100, meeting the need for miniaturization, but also allows the camera 7a to be closer to the location of the laser beam. In this way, the focal point of the camera 7a is closer to the laser focal point 17 of the laser beam, which is beneficial for the coordinate transformation between the image position and the laser focal point 17 during image processing, improving the efficiency of the image component 7 in completing image processing. Moreover, with the design of the camera 7a being arranged towards the second end 1b of the housing 1, the shooting direction of the camera 7a is in the same direction as the emission direction of the laser. This allows the image captured by the camera 7a to be closer to the situation of observing the treatment area 3 in the first direction X, and allows for more precise adjustment of the position of the laser focal point 17.

[0085] It should be noted that when this laser therapy handheld device 100 is used for treatment, the second end 1b of the housing 1 will be connected to the protective gear. At this time, if the camera 7a extends into the first cavity 4, it will cause the camera 7a to be too close to the surface of the patient's body, which may make it difficult for the camera 7a to capture a clear image. Therefore, this laser therapy handheld device 100 has the camera 7a built into the first cavity 4. In this way, the housing 1 can provide structural protection for the camera 7a and also make the distance between the camera 7a and the surface of the patient's body longer, which is more conducive to the camera 7a focusing.

[0086] Of course, since the camera 7a is positioned on the side of the illumination source 7b facing the second end 1b, it will block the light emitted by the illumination source 7b to some extent. Therefore, the handheld laser therapy device 100 has also improved the illumination source 7b. (Reference) Figures 3-7 As an example of this embodiment, the lighting source 7b includes a lamp holder 7b1, a lamp source 7b2, and a light-diffusing plate 7b3. The lamp holder 7b1 is provided with a second light-transmitting hole 11, which passes through the lamp holder 7b1 in the first direction X. The lamp source 7b2 is disposed on the lamp holder 7b1 and arranged around the second light-transmitting hole 11, avoiding the area where the camera 7a is located. The light-diffusing plate 7b3 is arranged between the lamp source 7b2 and the camera 7a, and the light-diffusing plate 7b3 is provided with a third light-transmitting hole 16 that communicates 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 and reach the light path exit 5.

[0087] The light source 7b2 can be a series of LED beads arranged around the second light-transmitting hole 11 at intervals, or it can be a light strip 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. In addition, with the cooperation of the light-diffusing plate 7b3, the light emitted by the light source 7b2 will be homogenized by the light-diffusing plate 7b3, making the brightness below the light source 7b2 uniform. In this way, even if the camera 7a blocks the optical light emitted by the illumination source 7b to a certain extent, the brightness below the illumination source 7b will not be affected too much, which can meet the shooting requirements of the camera 7a.

[0088] It should be noted that if the positions of the lens assembly 6 and the image assembly 7 are mismatched, integrating the lens assembly 6 and the image assembly 7 within the first cavity 4 can easily waste space, affecting the space utilization rate inside the first cavity 4 and the structural compactness of this laser therapy handheld device 100. Therefore, refer to... Figures 3-7As an example of this embodiment, the first cavity 4 includes a first chamber 4a and a second chamber 4b, which are connected in the first direction X. A fixing seat 12 is disposed within the second chamber 4b, and a first light-transmitting hole 13 is disposed within the fixing seat 12, extending through the first direction X. The fixing seat 12 also has a notch 12a, which connects the periphery of the first light-transmitting hole 13 to the outside of the fixing seat 12. A first galvanometer 6a and a second galvanometer 6b are disposed within the first chamber 4a. A field lens 6c is mounted into the first light-transmitting hole 13 via the notch 12a. An image assembly 7 is connected to the side of the fixing seat 12 away from the first chamber 4a and is arranged around the first light-transmitting hole 13. The diameter of the first light-transmitting hole 13 is greater than or equal to the outer diameter of the region column 10 to ensure that the laser beam can pass through the first light-transmitting hole 13 when the position is adjusted.

[0089] By dividing the first cavity 4 into a first chamber 4a and a second chamber 4b, and rationally allocating the positions of the first galvanometer 6a, the second galvanometer 6b, the field lens 6c, and the image component 7, the handheld laser therapy device 100 can control its axial dimensions (dimension in the first direction X) and radial dimensions (dimension in the second direction Y and the third direction Z) within a reasonable range. Furthermore, under the action of the mounting base 12, the field lens 6c can maintain a fixed position, ensuring the stability of the optical path. The field lens 6c can also maintain a sufficient distance from the first galvanometer 6a and the second galvanometer 6b to meet the propagation requirements of the optical path. The image component 7, connected to the other side of the mounting base 12, allows the illumination source 7b and the camera 7a to be sufficiently far away from the optical path exit 5. This not only allows the camera 7a to capture high-definition images better but also prevents damage to the camera 7a from external impacts during application. Of course, the housing 1 will also have an opening communicating with the second cavity to lead out the wires of the camera 7a and the image component 7 for connection to an external power source.

[0090] In addition, refer 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 disposed between the field lens 6c and the image component 7 to seal the side of the field lens 6c facing the second end 1b, so as to protect the field lens 6c, the first galvanometer 6a and the second galvanometer 6b from external collisions.

[0091] It is important to note that the human body surface is not a perfectly flat plane. When a laser beam falls on the human body surface, diffuse reflection will occur. This diffusely reflected light may seep back into the housing 1, affecting the normal transmission of the laser beam. For this, refer to... Figures 8-9As an example of this embodiment, the second end 1b of the housing 1 is connected to a cover 14, and a second cavity 18 is provided inside the cover 14. The second cavity 18 is connected to the first cavity 4 through the optical path outlet 5. Furthermore, the cover 14 extends along the first direction X, and a polarizer 15 is provided at the end of the cover 14 away from the housing 1 in the first direction X.

[0092] By sealing the lower end of the housing 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 becomes polarized light. In this way, when the laser beam falls on the skin surface of the patient, the unabsorbed laser beam will emit diffuse reflection. Under the action of the polarizer 15, the light reflected into the housing 1 will be blocked by the polarizer 15 and cannot return to the interior of the housing 1, thereby achieving the purpose of eliminating the influence of diffuse reflection on the laser beam.

[0093] Of course, with polarizer 15 in place, the laser beam should also be polarized. Taking P-type polarizer 15 as an example, P-type polarizer 15 has a transmittance of 99.9% for P-polarized light and a reflectance of over 90% for S-polarized light. Therefore, when the laser beam is P-polarized, it can pass smoothly through polarizer 15. Furthermore, when the laser beam falls on the patient's skin, the unabsorbed portion of the laser beam will be diffusely emitted. At this time, most of the emitted light is S-polarized. Therefore, when the reflected light strikes polarizer 15, it will be emitted by polarizer 15 and cannot return to the interior of housing 1.

[0094] It should be noted that the human body surface contour is usually curved. Therefore, the polarizer 15 of this laser therapy handheld device 100 is a flat lens, and the polarizer 15 is located at the end of the housing 14 away from the housing 1 in the first direction X. In this way, when this laser therapy handheld device 100 is used, the operator can press the laser therapy handheld device 100 with the housing 14 and polarizer 15 onto the patient's skin. Under the pressure of the polarizer 15, the area of ​​the patient's body surface that is in contact with the polarizer 15 will form a plane. At this time, the area of ​​the patient's body surface that is in contact 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 contour of the human body surface, ensuring that the laser beam focus 17 falls on the expected position. Moreover, by using the polarizer 15 to contact the patient's skin, the polarizer 15 itself can also cool the patient's skin, improving the patient's comfort during the treatment process.

[0095] Furthermore, 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 obstructing the passage of the illumination light.

[0096] It should be noted that, with the housing 14 and polarizer 15 in place, the laser focus 17 of the laser beam should be positioned outside the polarizer 15 in the first direction X to ensure that the energy of the laser beam can act on the patient's skin. Of course, in this case, the treatment area 3 of this handheld laser therapy device 100 is also located outside the polarizer 15 in the first direction X.

[0097] In summary, the present invention provides a handheld laser therapy device 100, which, by setting up a lens assembly 6 and an image assembly 7 that cooperate with each other, enables the handheld laser therapy device 100 to acquire an image of the treatment area 3 using the image assembly 7, and to analyze and annotate the treatment target displayed in the image. This allows the laser emitted by the laser source 2 to accurately fall on the treatment target within the treatment area 3, thereby enabling the handheld laser therapy device 100 to achieve precise focusing and precise treatment, thus solving the problem that existing laser instruments cannot achieve precise treatment.

[0098] Furthermore, by integrating the lens assembly 6 and the image assembly 7 into the first cavity 4 of the housing 1, the handheld laser therapy device 100 not only achieves high integration and effectively controls the device size, making it suitable for handheld operation, but also ensures that the image assembly 7 of the handheld laser therapy device 100 is on the same axis as the treatment area 3, and that the image assembly 7 is closer to the point where the laser beam falls. This makes the coordinate system more aligned with the treatment area 3, and the controller 8 can more accurately and quickly adjust the position of the laser focus 17 along the coordinate system.

[0099] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A handheld laser therapy device, characterized in that, The 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 located outside the first direction. A first cavity is disposed within the housing, and the first cavity has an optical path outlet extending through the second end along the first direction. The laser source is used to emit a laser beam incident on the first cavity. The first cavity is equipped with a lens assembly and an image assembly. The lens assembly receives the laser beam and directs the laser beam along the first direction toward the optical path exit, thereby forming a laser focal point falling within the treatment area. The image assembly, the optical path exit, and the treatment area are arranged along the first direction, and the image assembly is positioned around the laser beam, such that the image assembly and the treatment area are coaxial. The image assembly faces the second end to acquire an image of the treatment area. The controller is used to control the operation of the laser source, the lens assembly, and the image assembly, and the controller is configured to: Without acquiring an image of the treatment area, the image component is activated to acquire an image of the treatment area, and the treatment targets within the image are labeled. When the treatment target is acquired, the lens assembly focuses the laser beam onto the treatment target and turns on the laser source to emit the laser beam.

2. The handheld laser therapy device according to claim 1, characterized in that, The lens assembly is configured to adjust the position of the laser focus within the treatment area, having a first direction, a second direction, and a third direction that are mutually perpendicular, and the lens assembly includes: A first galvanometer is configured to rotate about the first direction to receive a laser beam incident from the second direction and to emit the laser beam along the third direction. The second galvanometer is configured to rotate about the second direction to receive the laser beam incident from the first galvanometer and to emit the laser beam along the first direction. A field lens is disposed on the side of the second galvanometer facing the second end to receive the laser beam incident from the second galvanometer.

3. The handheld laser therapy device according to claim 2, characterized in that, The controller is also configured to: With the treatment target marked, the first galvanometer and / or the second galvanometer are controlled 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, wherein 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.

4. The handheld laser therapy device according to claim 2, characterized in that, The lens assembly further includes a reflector arranged in the second direction to receive a laser beam incident from the laser source and to emit the laser beam in 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 handheld laser therapy device according to claim 2, characterized in that, The first cavity includes a first chamber and a second chamber, the first chamber and the second chamber communicating in the first direction, and... A fixing seat is provided in the second chamber, and a first light-transmitting hole is provided in the fixing seat, which is arranged through the first direction. The fixing seat also has a notch that connects the periphery of the first light-transmitting hole to the outside of the fixing seat. The first galvanometer and the second galvanometer are disposed in the first chamber, the field lens is installed into the first light-transmitting hole through the notch, and the image assembly is connected to the side of the mounting base away from the first chamber and arranged around the first light-transmitting hole.

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

7. The handheld laser therapy device according to claim 1, characterized in that, The lens assembly and the image assembly are arranged within the first cavity along the propagation path of the laser beam, and the image assembly includes: An illumination source is arranged around the regional column of the laser beam and directed toward the second end to irradiate the treatment area; A camera is positioned on the side of the illumination source facing the second end, is built into the first cavity, and is arranged adjacent to the regional column; and the camera is positioned facing the second end to capture images of the treatment area.

8. The handheld laser therapy device according to claim 7, characterized in that, The lighting source includes: A lamp holder, wherein a second light-transmitting hole is provided on the lamp holder, and the second light-transmitting hole passes through the lamp holder in the first direction; The light source is disposed on the lamp holder and arranged around the second light-transmitting hole, while avoiding the area where the camera is located; A light-diffusing plate is arranged between the light source and the camera, and the light-diffusing plate is provided with a third light-transmitting hole that communicates with the second light-transmitting hole.

9. The handheld laser therapy device according to claim 1, characterized in that, The second end of the housing is connected to a cover, and a second cavity is provided inside the cover. The second cavity communicates with the first cavity via the optical path outlet, and... The cover extends along the first direction, and a polarizing plate is provided at the end of the cover away from the housing in the first direction. The treatment area is located outside the polarizing plate in the first direction.

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

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