Double-head adjustable laser therapeutic instrument

Abstract

The application relates to the technical field of medical instruments and particularly discloses a double-head adjustable laser treatment instrument, which comprises a base, the bottom of the base is fixedly connected with a moving assembly used for moving the base, the moving assembly is provided with four groups of universally adjustable guide wheels, the top of the base is fixedly connected with a laser generating device, the double-head adjustable laser treatment instrument is equipped with universal guide wheels and can be flexibly moved to a position, two detachable goose-neck flexible pipes realize double-point synchronous irradiation, through the cooperation of a guide assembly, a heat conduction assembly and a fixing assembly, the semiconductor laser can be slidably assembled from the side opening of the machine box without disassembling the whole machine, the laser irradiation device is arranged, three-grade positioning circular grooves are arranged in the fixing cylinder, correspondingly, three kinds of light spot modes of beam expansion, beam collimation and beam convergence are realized, an opening and closing assembly with a plurality of synchronous opening and closing plate structures is arranged, the central light outlet can be synchronously opened and closed by rotating the annular turntable, and the lens can be prevented from being polluted when being idle.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a dual-head adjustable laser therapy device. Background Technology

[0002] Low-energy laser photobiological modulation therapy, after long-term clinical research and technological iteration, has been widely applied in multiple medical fields such as rehabilitation medicine, dermatology, orthopedics, pain management, and dentistry. This therapy relies on the superior technical characteristics of lasers—strong directionality, controllable energy, and non-invasive and painless treatment—to regulate mitochondrial activity through photochemical effects, effectively accelerating local blood circulation, promoting the excretion of inflammatory metabolites, and stimulating fibroblast proliferation. It can achieve multiple therapeutic effects such as soft tissue repair, nerve analgesia, wound healing, and inflammation reduction, making it an indispensable standardized treatment method in clinical non-invasive physiotherapy systems. Currently, the industrialization technology of semiconductor laser devices is highly mature, and the supporting core systems such as power supply regulation, pulse modulation, and temperature closed-loop control are continuously optimized and upgraded. China has now established a complete system for the design, testing, registration, and mass production of laser medical devices, and relevant industry standards have been fully implemented, laying a solid compliance and technical foundation for the standardized research, development, production, and clinical promotion of laser physiotherapy equipment. Traditional single-head fixed laser therapy instruments have achieved widespread clinical application, with overall operational stability, energy output accuracy, and reliability all significantly improved, and the technical system becoming increasingly sophisticated.

[0003] Chinese patent CN113679957B discloses a semiconductor laser therapy device with adjustable probes. By adjusting the main body, the probe holder, probe one, and probe two can be easily stored, preventing dust from entering the interior of the shell, improving the safety of probe one and probe two, and avoiding damage to them. At the same time, the main body can be raised during use to facilitate heat dissipation, making it convenient to use.

[0004] While the above-mentioned method can achieve storage and protection for both probes, the sealing and protection effect is poor. Water and medication can easily seep in during treatment, causing damage to the internal circuitry and affecting the lifespan of the laser therapy device. Furthermore, the lasers are mostly fixed inside the chassis with bolts, requiring disassembly of the entire machine for replacement and maintenance, which is cumbersome and reduces the ease of use of the equipment. At the same time, adjusting the spot mode is inconvenient, making it difficult to quickly switch between different spot sizes to adapt to different treatment areas, further complicating the device's adjustability. When not in use, the lenses are easily contaminated by external dust and other impurities, requiring manual cleaning. If cleaning is not timely, it will affect the laser output intensity and reduce the treatment effect, thus affecting the ease of use and efficiency of the equipment. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides the following technical solution: a dual-head adjustable laser therapy device, comprising: A base, the bottom of which is fixedly connected to a moving component for moving the base, the moving component having four sets of universally adjustable guide wheels, and the top of which is fixedly connected to a laser generating device; A mounting base plate is fixedly connected to the top of the machine base, and a pull frame is fixedly connected to one side of the mounting base plate; The connecting seat has two sets and is symmetrically fixedly connected to both sides of the base. The top of the connecting seat is symmetrically provided with installation and replacement holes. The installation and replacement holes are threaded with universally adjustable gooseneck hoses. The end of the gooseneck hose away from the installation and replacement hole is fixedly connected to a laser irradiation device. The laser generating device includes: The chassis has a rectangular shell structure with one side tilted and open. A fixing component is rotatably connected through one side of the chassis. Guide components are symmetrically fixed to the bottom of the inner wall of the chassis. A heat-conducting component is fixed to the bottom of the inner wall of the chassis between the guide components. The fiber optic connector has two sets of symmetrically connected and fixedly connected to the side of the chassis. A two-in-one fiber optic cable is fixedly connected to one side of the fiber optic connector, and the end of the two-in-one fiber optic cable away from the fiber optic connector is fixedly connected to the laser irradiation device.

[0006] Preferably, the laser generating device further includes: A sealing groove is provided around the inclined opening of the chassis, and a sealing element is provided inside the sealing groove; The control panel is squeezed around the seal and fixedly connected to one side of the chassis by bolts. A fixing groove is provided on the side of the control panel away from the seal. The sealing cover has four elastic protrusions that engage with the inner wall of the fixing slot. It can be flexibly moved by the bottom casters and is equipped with a double-headed gooseneck flexible tube that can be bent at will, enabling simultaneous laser treatment at multiple sites and angles, adapting to various treatment scenarios. The control panel adopts a double-layer sealing structure, doubly blocking the intrusion of water vapor and dust, preventing damage to the internal laser and corrosion of the fixing bolts, and improving the stability of the equipment and the convenience of disassembly and assembly.

[0007] Preferably, the guide assembly includes a slide rail, a sliding block is slidably connected to the inner wall of the slide rail, a mounting plate is fixedly connected to the top of the sliding block, a U-shaped mounting bracket is fixedly connected to the top of the mounting plate by bolts, a semiconductor laser is symmetrically fixedly connected to the top of the U-shaped mounting bracket by a bracket, two sets of slide rails are provided and symmetrically fixedly connected to the bottom of the inner wall of the chassis, and the semiconductor laser is connected to the fiber optic connector after installation.

[0008] Preferably, the heat-conducting component includes a heat-conducting box, the heat-conducting box is provided with a phase change material, a heat-conducting slide plate is uniformly penetrated and slidably connected to the top of the heat-conducting box, a heat-conducting clamp plate is fixedly connected to the top of the heat-conducting slide plate, and compression buffer springs are fixedly connected to the top of the heat-conducting box on both sides of the heat-conducting slide plate. The heat-conducting box is fixedly connected to the bottom of the inner wall of the chassis.

[0009] Preferably, the fixing assembly includes a positive and negative lead screw, with L-shaped connecting rods symmetrically connected to the positive and negative lead screws via slider threads. A U-shaped limiting clamp is fixedly connected to the end of the L-shaped connecting rod away from the positive and negative lead screw. A first bevel gear is symmetrically fixedly connected to the positive and negative lead screw, and a second bevel gear meshes with the side of the first bevel gear. An adjusting rod is fixedly connected to one side of the second bevel gear. The end of the adjusting rod away from the second bevel gear passes through the chassis and is rotatably connected to the chassis. An adjusting knob is fixedly connected to the end of the adjusting rod passing through the chassis. Pushed into the chassis by a sliding structure, the spring pushes the heat-conducting clamp to fit tightly against the U-shaped mounting bracket. The phase change material quickly absorbs heat to control the temperature, avoiding high-temperature overload of the equipment. With the bevel gear and the positive and negative lead screw transmission, the laser is clamped and fixed bidirectionally, accurately aligned with the fiber optic connector, and can be disassembled and assembled without disassembly, ensuring laser transmission accuracy.

[0010] Preferably, the laser irradiation device includes a fixed cover, an opening and closing assembly fixedly connected to one side of the fixed cover, a first lens fixedly connected to the inner wall of the fixed cover, an adjusting ring passing through and rotatably connected to the fixed cover, an adjusting cylinder fixedly connected to the inner side of the adjusting ring, a spiral adjusting port evenly opened on the side of the adjusting cylinder, a guide groove opened on the inner wall of the fixed cover, a positioning circular groove evenly opened on the inner wall of the guide groove, a sliding column slidably connected to the inner wall of the spiral adjusting port, an elastic locking rod with a circular locking head adapted to the positioning circular groove passing through and slidably connected to one end of the sliding column, the side of the sliding column slidably connected to the inner wall of the guide groove, and a second lens fixedly connected to one end of the sliding column located inside the adjusting cylinder.

[0011] Preferably, the second lens has an arc-shaped concave structure, with the concave structure of the second lens facing the first lens. The bottom of the fixing cover is fixedly connected to the end of the gooseneck flexible tube away from the installation and replacement hole. One side of the fixing cover passes through and is fixedly connected to the two-in-one optical fiber. The lens is moved horizontally by rotating the adjusting ring in conjunction with the spiral groove transmission. The elastic lever and three sets of positioning circular grooves are used to lock the lens in place, corresponding to the three-level laser beam adjustment of beam reduction, collimation, and beam expansion. The beam adjustment is clear and the positioning is stable, which can adapt to different treatment conditions and ensure the stability of the beam size throughout the treatment, thereby improving the treatment accuracy and adjustment convenience.

[0012] Preferably, the opening and closing assembly includes a connecting cover, a fixing ring fixedly connected to the inner side of the connecting cover, an annular turntable rotatably connected to one side of the fixing ring, an annular turntable having evenly spaced arc-shaped sliding openings on its side, a guide groove having evenly spaced guide grooves on the side of the fixing ring, a connecting frame slidably connected to the inner wall of the arc-shaped sliding opening, an opening and closing plate fixedly connected to one end of the connecting frame, an end of the connecting frame farther from the opening and closing plate slidably connected to the inner wall of the guide groove, a fixing rod fixedly connected to the side of the annular turntable farther from the opening and closing plate, and an elastic rod passing through and slidably connected to the end of the fixing rod farther from the annular turntable. An L-shaped locking rod is fixedly connected to the end of the elastic rod away from the fixed rod. A conversion slot is symmetrically opened at one end of the connecting cover. The inner wall of the conversion slot is slidably connected to the end of the L-shaped locking rod away from the elastic rod. The end of the connecting cover away from the conversion slot is connected to the fixed cover. By rotating the turntable, multiple sets of opening and closing plates are opened and closed synchronously. The size of the light output opening can be adaptively adjusted according to the size of the light spot to meet different treatment needs. When the equipment is idle, the light output opening can be completely closed to effectively block dust and water vapor from contaminating the lens, stabilize the laser transmittance and output accuracy, extend the lens maintenance cycle, and reduce the equipment operation and maintenance costs.

[0013] The beneficial effects of the technical solution provided by this invention include: 1. This dual-head adjustable laser therapy device is equipped with universal guide wheels for flexible positioning. Two detachable gooseneck hoses enable simultaneous irradiation at two points, and the irradiation heads can also be replaced individually to adapt to various treatment areas. The control panel adopts a double-layer sealing structure. The seal provides basic protection on the inner side, and the elastic convex plate clamps the sealing cover to form secondary protection on the outer side. This effectively prevents moisture and dust from entering the machine and protects the internal laser components. It also prevents the fixing bolts from rusting and jamming, which not only improves the stability of the machine's operation but also facilitates later disassembly and maintenance, enhancing the flexibility and protection of use.

[0014] 2. This dual-head adjustable laser therapy device, through the coordinated operation of the guiding component, heat-conducting component, and fixing component, allows the semiconductor laser to be slidably assembled from the side opening of the chassis without disassembling the entire machine. The heat-conducting clamp relies on the spring force to tightly adhere to the mounting bracket, quickly dissipating the working heat of the laser. The phase change material provides constant temperature heat absorption and control, avoiding high temperature damage to the device's lifespan. The double-sided limiting clamps are driven by bevel gears and positive and negative lead screws to clamp and position the device. The installation and disassembly operations are simple, and the fiber optic connector is precisely aligned to prevent laser beam deviation, ensuring efficient light transmission. The clamping structure is firm and not easy to loosen, improving the ease of laser assembly and the long-term reliability of the entire machine.

[0015] 3. This dual-head adjustable laser therapy device is equipped with a laser irradiation unit. The fixed cylinder has three positioning grooves corresponding to three beam expansion, collimation, and beam contraction modes. Rotating the adjustment ring moves the second lens using a spiral structure, and the setting is locked by a flexible locking lever. The switching is tactilely clear and the positioning is reliable, preventing misalignment or shaking during use. The spot size can be precisely controlled by changing the distance between the two lenses to match the treatment needs of different affected areas. The setting adjustment is simple and intuitive, effectively improving the convenience of spot adjustment and ensuring precise and controllable laser treatment dosage.

[0016] 4. This dual-head adjustable laser therapy device is equipped with an opening and closing assembly with multiple synchronous opening and closing plates. Rotating the annular turntable synchronously opens and closes the central light outlet. The opening is locked by an L-shaped locking rod that engages with the conversion slot. When not in use, the opening is closed to prevent dust and moisture from contaminating the optical lenses, maintaining the light transmission performance of the lenses, ensuring stable laser output accuracy, eliminating the need for frequent wiping and cleaning of the lenses, extending the lens maintenance cycle, reducing the daily maintenance cost of the equipment, and improving the equipment's protective capabilities and overall ease of use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the dual-head adjustable laser therapy device of the present invention; Figure 2 This is a schematic diagram of the connection structure of the laser generator of the present invention; Figure 3 This is a schematic diagram of the sealing groove connection structure of the present invention; Figure 4 This is an enlarged structural diagram of point A in the present invention; Figure 5 This is a schematic diagram of the internal connection structure of the chassis of the present invention; Figure 6 This is a schematic diagram of the connection structure of the guiding component and the heat-conducting component of the present invention; Figure 7 This is a schematic diagram of the connection structure of the fixed component of the present invention; Figure 8 This is a schematic diagram of the laser irradiation device of the present invention; Figure 9 This is a schematic diagram of the internal connection structure of the fixed cylinder of the present invention; Figure 10 This is a schematic diagram of the internal connection structure of the opening and closing component of the present invention.

[0018] In the diagram: 1. Base; 2. Moving assembly; 3. Mounting base plate; 4. Pulling frame; 5. Mounting and replacement hole; 6. Gooseneck flexible hose; 7. Laser generator; 8. Laser irradiation device; 9. Connecting seat; 71. Chassis; 72. Fixing assembly; 73. Guide assembly; 74. Heat conduction assembly; 75. Fiber optic connector; 76. Two-in-one fiber optic cable; 77. Sealing groove; 78. Seal; 79. Control panel; 710. Fixing slot; 711. Sealing cover edge; 721. Positive and negative lead screws; 722. L-shaped connecting rod; 723. U-shaped limit clamp; 724. First bevel gear; 725. Second bevel gear; 726. Adjusting rod; 727. Adjusting knob; 731. Slide rail; 732. Sliding block; 733. Installation... Mounting plate; 734, U-shaped mounting bracket; 735, semiconductor laser; 741, heat conduction box; 742, heat conduction slide plate; 743, heat conduction clamp plate; 744, compression buffer spring; 81, fixing cover; 82, opening and closing assembly; 83, first lens; 84, adjusting ring; 85, adjusting drum; 86, spiral adjusting port; 87, guide transverse groove; 88, positioning circular groove; 89, sliding column; 810, elastic locking rod; 811, second lens; 821, connecting cover; 822, fixing ring; 823, annular turntable; 824, arc-shaped sliding mouth; 825, guide groove; 826, connecting frame; 827, opening and closing plate; 828, fixing rod; 829, elastic rod; 8210, L-shaped locking rod; 8211, conversion slot. Detailed Implementation

[0019] For the first embodiment, please refer to... Figures 1-4This invention provides a dual-head adjustable laser therapy device. It features a laser generator 7, which is pulled by a hand-held pull frame 4, moving the entire device to the treatment position via a movable component 2 at the bottom of the base 1. Four sets of universally adjustable guide wheels facilitate position adjustment. Two gooseneck hoses 6 are threaded onto the installation and replacement holes 5, completing the quick assembly of the laser irradiation end. The position of the laser irradiation device 8 can be adjusted by manipulating the universally adjustable gooseneck hoses 6 according to treatment needs, thus meeting the irradiation requirements of different treatment locations. The dual-head design allows for simultaneous treatment of two areas, and the laser irradiation end can be changed for different treatment needs, making it more flexible in use. Before use, the internal semiconductor... After the laser 735 is installed, the control panel 79 needs to be installed. First, the seal 78 is embedded into the sealing groove 77, and then the control panel 79 is fixed to the chassis 71 with bolts. The control panel 79 presses against the seal 78 to complete the initial seal, preventing external moisture and dust from entering the chassis 71 and affecting the use of the semiconductor laser 735. Then, the elastic protrusion of the sealing cover edge 711 is inserted into the fixing groove 710 of the control panel 79 to complete the secondary seal on the outside of the control panel 79. This further prevents dust or water stains from entering the chassis 71 and affecting the operation of the device. At the same time, it prevents external moisture from entering the bolts fixing the control panel 79 and causing the bolts to rust, which would affect subsequent disassembly, thereby improving the ease of use of the device.

[0020] Second embodiment, please refer to Figures 1-7By using the guide assembly 73, heat-conducting assembly 74, and fixing assembly 72 in conjunction, the semiconductor laser 735 can be initially installed directly from the entrance of the inclined opening of the chassis 71. First, the semiconductor laser 735 is mounted on the U-shaped mounting bracket 734. Then, the U-shaped mounting bracket 734 is pre-fixed to the mounting plate 733 with bolts. Next, the sliding block 732 is pushed to slide along the slide rail 731 into the chassis 71. During the sliding process, the U-shaped mounting bracket 734 presses against the heat-conducting clamping plate 743. The heat-conducting slide plate 742 presses down on the compression buffer spring 744, causing the spring to compress and generate a reverse elastic force. This force clamps the U-shaped mounting bracket 734 through the heat-conducting clamp plate 743, ensuring a tight fit between them. The U-shaped mounting bracket 734 transfers the heat generated by the semiconductor laser 735 to the heat-conducting slide plate 742, which then transfers it to the phase change material inside the heat-conducting box 741. The phase change material absorbs the heat, thus stabilizing the internal temperature of the box 71. To prevent the semiconductor laser 735 from overheating during prolonged operation and affecting its lifespan, after the sliding block 732 slides to align with the fiber optic connector 75, the adjustment knob 727 is rotated. The adjustment knob 727 drives the adjustment rod 726 to rotate, which in turn drives the second bevel gear 725 to rotate. The second bevel gear 725, through meshing, drives the first bevel gear 724 to rotate. The first bevel gear 724 drives the positive and negative lead screws 721 to rotate. The positive and negative lead screws 721, through their threads, drive the L-shaped connecting rods 722 on both sides to move towards each other. The U-shaped connecting rod 722 drives the U-shaped limiting clamp 723 to move towards the U-shaped mounting bracket 734 until the U-shaped limiting clamp 723 clamps the U-shaped mounting bracket 734, thus completing the horizontal position fixation of the semiconductor laser 735. This allows for convenient and stable installation without disassembling the overall chassis 71. Installation and disassembly are both convenient, and it ensures that the laser emitter is aligned with the fiber optic connector 75, avoiding laser alignment misalignment that could affect energy transmission efficiency. The fixed position is not easily loosened, improving the convenience and reliability of the device.

[0021] Third embodiment, please refer to Figures 1-9The laser irradiation device 8 is equipped with three sets of positioning grooves 88, corresponding to the three adjustment levels of beam expansion, collimation, and beam contraction. To adjust the laser spot size, the adjustment ring 84 is rotated, causing the adjustment cylinder 85 to rotate. As the cylinder rotates, it presses against the sliding column 89 through the inner wall of the spiral adjustment port 86. The sliding column 89 moves horizontally along the guide groove 87 after being pressed. When the sliding column 89 reaches the corresponding position, the round locking head of the elastic locking rod 810 engages with the corresponding positioning groove 88 under elastic action. A slight audible sound will be heard at this point. The click sound indicates that the rotation has stopped, allowing for adjustment of the laser spot size. This adapts to the spot size requirements of different treatment scenarios, is simple to operate, and the settings are clear and not easily misaligned. The positioning groove 88 of the second concave lens 811, which is closer to the first lens 83, corresponds to the small spot size setting for beam contraction, while the positioning groove 88, which is farther from the first lens 83, corresponds to the large spot size setting for beam expansion. The collimation setting in the middle is suitable for conventional treatment needs. The switching between different settings is smooth, and the positioning is stable and not easily shaken, ensuring that the laser spot size remains stable during treatment. This improves the convenience and stability of the entire device's adjustment.

[0022] For the fourth embodiment, please refer to [link / reference]. Figures 1-10 By setting the opening and closing component 82, during laser treatment, pulling the L-shaped locking rod 8210 causes its end to exit the current conversion slot 8211. Then, the elastic rod 829 rotates against the fixed rod 828, causing the fixed rod 828 to rotate the rotating annular turntable 823. When the annular turntable 823 rotates, the inner wall of the arc-shaped sliding opening 824 presses against the connecting frame 826. The connecting frame 826 drives all the opening and closing plates 827 to move synchronously towards each other along the guide groove 825, causing multiple opening and closing plates 827 to gradually open out of the central opening, thus opening the irradiation area of ​​the connecting cylinder. After opening, the L-shaped locking rod 8210 is aligned with the conversion slot 8211 closest to the current opening position. After releasing the L-shaped locking rod 8210, the L-shaped locking rod 821... Under the elastic force of the elastic rod 829, the lens is locked into the corresponding conversion slot 8211 to complete the fixation. The opening can then be adjusted to the size of the suitable spot. When not in use, the above operation is repeated. The fixing rod 828 is reversed, and the reverse rotation of the fixing rod 828 drives the annular turntable 823 to rotate in the opposite direction. This causes multiple opening and closing plates 827 to close synchronously, closing the irradiation opening. This prevents dust and moisture from entering the fixing cylinder and contaminating the lens. There is no need to clean the lens surface before treatment, ensuring stable lens transmittance and not affecting the normal output of laser energy. This improves the convenience and stability of the device, while extending the lens cleaning and maintenance cycle, reducing maintenance costs, and ensuring the output accuracy of laser treatment.

[0023] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dual-head adjustable laser therapy device, characterized in that: include: The base (1) has a fixedly connected moving component (2) for moving the base (1) at its bottom. The moving component (2) has four sets of universally adjustable guide wheels. The base (1) has a fixedly connected laser generator (7) at its top. Mounting base plate (3) is fixedly connected to the top of the machine base (1), and a pull frame (4) is fixedly connected to one side of the mounting base plate (3). Connecting seat (9), the connecting seat (9) is provided in two sets and is symmetrically fixedly connected to both sides of the base (1). The top of the connecting seat (9) is symmetrically provided with installation and replacement holes (5). A universally adjustable gooseneck hose (6) is threaded onto the installation and replacement hole (5). A laser irradiation device (8) is fixedly connected to the end of the gooseneck hose (6) away from the installation and replacement hole (5). The laser generating device (7) includes: The chassis (71) has a rectangular shell structure with one side tilted and open. A fixing component (72) is rotatably connected through one side of the chassis (71). A guide component (73) is symmetrically fixedly connected to the bottom of the inner wall of the chassis (71). A heat-conducting component (74) is fixedly connected to the part of the bottom of the inner wall of the chassis (71) between the guide components (73). The fiber optic connector (75) has two sets of symmetrically connected and fixedly connected to the side of the chassis (71). A two-in-one fiber (76) is fixedly connected to one side of the fiber optic connector (75). The end of the two-in-one fiber (76) away from the fiber optic connector (75) is fixedly connected to the laser irradiation device (8).

2. The dual-head adjustable laser therapy device according to claim 1, characterized in that: The laser generating device (7) also includes: A sealing groove (77) is provided around the inclined opening of the chassis (71), and a sealing element (78) is provided inside the sealing groove (77). Control panel (79) is pressed around the seal (78) and fixedly connected to one side of the chassis (71) by bolts. A fixing slot (710) is provided on the side of the control panel (79) away from the seal (78). The sealing cover edge (711) has four elastic protrusions, which engage with the inner wall of the fixing groove (710).

3. The dual-head adjustable laser therapy device according to claim 1, characterized in that: The guide assembly (73) includes a slide rail (731), a sliding block (732) is slidably connected to the inner wall of the slide rail (731), a mounting plate (733) is fixedly connected to the top of the sliding block (732), a U-shaped mounting bracket (734) is fixedly connected to the top of the mounting plate (733) by bolts, and a semiconductor laser (735) is symmetrically fixedly connected to the top of the U-shaped mounting bracket (734) by a bracket.

4. The dual-head adjustable laser therapy device according to claim 3, characterized in that: The slide rail (731) is provided in two sets and is symmetrically fixedly connected to the bottom of the inner wall of the chassis (71). After the semiconductor laser (735) is installed, it is connected to the fiber optic connector (75).

5. A dual-head adjustable laser therapy device according to claim 1, characterized in that: The heat-conducting component (74) includes a heat-conducting box (741), which is provided with a phase change material. A heat-conducting slide plate (742) is uniformly and slidably connected through the top of the heat-conducting box (741). A heat-conducting clamp plate (743) is fixedly connected to the top of the heat-conducting slide plate (742). Compression buffer springs (744) are fixedly connected to the top of the heat-conducting box (741) on both sides of the heat-conducting slide plate (742). The heat-conducting box (741) is fixedly connected to the bottom of the inner wall of the chassis (71).

6. The dual-head adjustable laser therapy device according to claim 1, characterized in that: The fixing component (72) includes a positive and negative lead screw (721), on which L-shaped connecting rods (722) are symmetrically connected via slider threads. A U-shaped limiting clamp (723) is fixedly connected to the end of the L-shaped connecting rod (722) away from the positive and negative lead screw (721). A first bevel gear (724) is symmetrically fixedly connected to the positive and negative lead screw (721). A second bevel gear (725) meshes with the side of the first bevel gear (724). An adjusting rod (726) is fixedly connected to one side of the second bevel gear (725). The end of the adjusting rod (726) away from the second bevel gear (725) passes through the housing (71) and is rotatably connected to the housing (71). An adjusting knob (727) is fixedly connected to the end of the adjusting rod (726) passing through the housing (71).

7. A dual-head adjustable laser therapy device according to claim 1, characterized in that: The laser irradiation device (8) includes a fixed cover (81), an opening and closing assembly (82) is fixedly connected to one side of the fixed cover (81), a first lens (83) is fixedly connected to the inner wall of the fixed cover (81), an adjusting ring (84) is rotatably connected through the fixed cover (81), an adjusting cylinder (85) is fixedly connected to the inner side of the adjusting ring (84), a spiral adjusting port (86) is evenly opened on the side of the adjusting cylinder (85), and a guide groove (86) is opened on the inner wall of the fixed cover (81). 7) The inner wall of the guide transverse groove (87) is evenly provided with positioning circular grooves (88), and the inner wall of the spiral adjustment port (86) is slidably connected with a sliding column (89). One end of the sliding column (89) passes through and is slidably connected with an elastic locking rod (810) with a circular locking head that is adapted to the positioning circular groove (88). The side of the sliding column (89) is slidably connected to the inner wall of the guide transverse groove (87), and the end of the sliding column (89) located inside the adjustment cylinder (85) is fixedly connected with a second lens (811).

8. A dual-head adjustable laser therapy device according to claim 7, characterized in that: The second lens (811) has an arc-shaped concave structure, the concave structure of the second lens (811) faces the first lens (83), the bottom of the fixing cover (81) is fixedly connected to the end of the gooseneck hose (6) away from the installation and replacement hole (5), and one side of the fixing cover (81) is penetrated and fixedly connected to the two-in-one optical fiber (76).

9. A dual-head adjustable laser therapy device according to claim 7, characterized in that: The opening and closing assembly (82) includes a connecting cover (821), a fixing ring (822) is fixedly connected to the inner side of the connecting cover (821), an annular turntable (823) is rotatably connected to one side of the fixing ring (822), an arc-shaped sliding opening (824) is evenly provided on the side of the annular turntable (823), a guide groove (825) is evenly provided on the side of the fixing ring (822), a connecting frame (826) is slidably connected to the inner wall of the arc-shaped sliding opening (824), an opening and closing plate (827) is fixedly connected to one end of the connecting frame (826), and the end of the connecting frame (826) away from the opening and closing plate (827) is slidably connected to the inner wall of the guide groove (825). A fixed rod (828) is fixedly connected to the side of the annular turntable (823) away from the composite plate (827). An elastic rod (829) is slidably connected to the end of the fixed rod (828) away from the annular turntable (823). An L-shaped locking rod (8210) is fixedly connected to the end of the elastic rod (829) away from the fixed rod (828). A conversion slot (8211) is symmetrically opened at one end of the connecting cover (821). The inner wall of the conversion slot (8211) is slidably connected to the end of the L-shaped locking rod (8210) away from the elastic rod (829). The end of the connecting cover (821) away from the conversion slot (8211) is connected to the fixed cover (81).

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