Portable high-energy laser therapeutic instrument

Abstract

The invention relates to the field of high-energy laser physiotherapy, and particularly discloses a portable high-energy laser therapeutic instrument, which comprises a shell, and an optical waveguide assembly, a laser, a heat dissipation assembly and a circuit board which are arranged in the shell, the shell is divided into a handle part and a mounting part; a metal plate is arranged at one end of the mounting part; the heat dissipation assembly comprises a fan and a heat dissipation tower, the heat dissipation tower is installed on the shell, fins of the heat dissipation tower face the end away from the metal plate, the laser is installed at the end, close to the metal plate, of the heat dissipation tower, and the fan is installed on the side edge, away from the fins of the metal plate, of the heat dissipation tower. The optical waveguide assembly is installed at the end, close to the metal plate, of the heat dissipation tower, and laser of the laser enters the optical waveguide assembly. A light spot opening for the optical waveguide assembly to pass through is formed in the middle of the metal plate; the circuit board is mounted at the top of the heat dissipation tower; a plurality of air inlet holes are formed in two sides of the peripheral surface of the mounting part; a plurality of air outlet holes are formed in the end surface, far away from the metal plate, of the mounting part. The application has the effect of improving the treatment convenience of the patient.

Description

Technical Field

[0001] This invention relates to the field of high-energy laser therapy, and in particular to a portable high-energy laser therapy device. Background Technology

[0002] With the gradual development of laser technology, lasers are widely used in human treatment. Laser therapy is used to treat a wide variety of musculoskeletal problems, including but not limited to: osteoarthritis, chronic pain, tendinitis, repetitive strain injuries, post-operative rehabilitation, rotator cuff injuries, and neck and back pain. Using low-intensity laser therapy, this painless treatment stimulates cells and promotes tissue repair. Laser therapy utilizes the energy of infrared light to reduce pain, decrease inflammation, and stimulate tissue healing. Another benefit of laser therapy is that it can increase blood flow and assist circulation within the body to the affected area. The most significant benefit of laser therapy is that it stimulates natural processes occurring within cells, creating better recovery time and eliminating pain.

[0003] Currently, laser therapy devices mainly consist of two parts: a handpiece and a main unit, and are quite large in size. During use, parameters are set on the main unit, and then the treatment is administered to the patient via the handpiece. These devices are often located in hospitals, requiring patients to travel there each time they need treatment. This is extremely inconvenient for pain sufferers, and even more so when patients are in different locations. The large size and portability of the devices further complicate the treatment process. Summary of the Invention

[0004] To improve the convenience of treatment for patients, this application provides a portable high-energy laser therapy device.

[0005] The portable high-energy laser therapy device provided in this application adopts the following technical solution: A portable high-energy laser therapy device includes a shell and an optical waveguide assembly, a laser, a heat dissipation assembly, and a circuit board installed inside the shell. The shell is divided into a handle section and a mounting section, with a metal plate at one end of the mounting section. The heat dissipation assembly includes a fan and a heat dissipation tower. The heat dissipation tower is installed on the shell, with its fins facing away from the metal plate. The laser is installed at the end of the heat dissipation tower near the metal plate, and the fan is installed on the side of the heat dissipation tower away from the metal plate. The optical waveguide assembly is installed at the end of the heat dissipation tower near the metal plate, and the laser beam from the laser enters the optical waveguide assembly. A beam opening for the optical waveguide assembly to pass through is provided in the middle of the metal plate. The circuit board is installed on the top of the heat dissipation tower. Multiple air inlets are provided on both sides of the mounting section, and multiple air outlets are provided on the end face of the mounting section away from the metal plate.

[0006] Optionally, the optical waveguide assembly includes an optical waveguide body, an upper optical waveguide shell, and a lower optical waveguide shell; a groove for placing a laser is provided on the end face of the heat dissipation tower near the metal plate; the end faces of the upper and lower optical waveguide shells are attached to the end faces of the heat dissipation tower near the metal plate and are detachably connected, and the laser extends into the end faces of the upper and lower optical waveguide shells; the optical waveguide body is located between the upper and lower optical waveguide shells, and the upper and lower optical waveguide shells are detachably connected; the end of the optical waveguide body extends into the beam aperture.

[0007] Optionally, a heat pipe is connected to one end of the bottom surface of the heat dissipation tower near the end of the metal plate, and a heat exchange block is connected to the other end of the heat pipe. A thermoelectric cooling chip is installed on the side of the heat exchange block. A heat-conducting block is connected to the side of the metal plate near the heat dissipation tower, and the thermoelectric cooling chip is attached to the side of the heat-conducting block away from the metal plate.

[0008] Optionally, two filter mechanisms are installed on the inner wall of the housing. The two filter mechanisms cover the air inlets on both sides of the housing and are used to filter dust entering the housing.

[0009] Optionally, the filtration mechanism includes mounting side plates and a filter screen. There are two mounting side plates, which are connected to the inner wall of the housing and are located on both sides of the air inlet. The filter screen is installed between the two mounting side plates, and is attached to the inner wall of the housing and covers the air inlet.

[0010] Optionally, the mounting side plate includes a connecting strip and a baffle. The connecting strip is connected to the inner wall of the housing, and the baffle is connected to the side of the connecting strip near the filter screen. The two sides of the filter screen are slidably connected between the baffle and the inner wall of the housing, respectively. A pull strap is connected to the bottom edge of the filter screen, and a notch is provided on the housing for the pull strap to extend. A cylinder is connected to the side of the pull strap, and the circumference of the cylinder fits against the circumference of the housing.

[0011] Optionally, the filter screen includes a filter screen, a sliding frame, and sliding strips. The sliding frame slides on the inner wall of the housing, and the two sides of the sliding frame slide on the sides of two connecting strips. The air inlet is located between the sliding frames, and the filter screen is attached to the side of the sliding frame away from the housing. There are two sliding strips, which are respectively connected to the side of the filter screen away from the sliding frame. The two baffles are provided with grooves for the two sliding strips to slide on. The ends of the sliding strips and the sides of the sliding frame are connected to the side of the pull strap away from the cylinder.

[0012] Optionally, a push plate is connected to the side of the slide frame away from the pull strap, and sliders are connected to both ends of the push plate on the side away from the slide frame. Two mounting side plates pass through the two sliders respectively, and the sliders slide on the mounting side plates. Guide strips are provided on the sides of the two mounting side plates that are far apart from each other. The guide strips are set along the inner wall of the housing, and mounting blocks are connected to both ends of the guide strips. The mounting blocks are connected to the inner wall of the housing. The two guide strips pass through the two sliders respectively. A spring is provided on the outer sleeve of the guide strips. One end of the spring is connected to the side of the slider, and the other end of the spring is connected to the mounting block near the notch.

[0013] Optionally, the bottom of the handle is equipped with a three-pin DC socket with positive and negative terminals. The middle pin is for communication and is powered by an internal lithium battery, but can also be powered by an external adapter.

[0014] Optionally, the heat sink has a mounting port on the side of the fins away from the metal plate, and the fan is embedded in the mounting port, with the fan part being wrapped by the fins of the heat sink.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The circuit board controls the laser to generate pulsed light for therapeutic treatment. The pulsed light generated by the laser is formed into a light spot through the optical waveguide assembly. The light spot can be circular or rectangular. The light spot irradiates the area of ​​the patient requiring treatment. The laser generates a large amount of heat, which is transferred to the fins of the heat sink. The circuit board controls the fan to work. The air inlet and outlet on both sides of the mounting unit form a complete air duct. The fan draws in hot air from the heat sink, removes the heat, and sends it out of the machine through the outlet, creating a negative pressure. Cold air from outside the machine enters the heat sink fins through the air inlet and exchanges heat with it. By combining the circuit board, laser, optical waveguide assembly, and heat sink assembly into the outer casing, the overall structure of the therapeutic device is reduced in size and made easy to carry. Patients can purchase it themselves and use it at home or when traveling, improving the convenience of treatment for patients. 2. The heat dissipation tower removes heat from the heat pipe, which lowers the temperature of the metal heat exchange block and the thermoelectric cooler. The thermoelectric cooler then cools the metal heat conduction block, which in turn lowers the temperature of the metal plate. When the metal plate is in contact with the patient's skin, it will have a cooling effect. 3. When too much dust accumulates on the surface of the filter screen, the dust can easily clog the filter screen and affect the airflow. By pulling the cylinder, the cylinder drives the pull belt, which pulls the filter screen outward. The filter screen moves out of the outer shell, and then the dust on the filter screen can be cleaned. After cleaning, the filter screen moves back into the outer shell and can continue to filter the airflow entering the outer shell. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the treatment device according to Embodiment 1 of this application; Figure 2 This is a schematic diagram of the internal structure of the treatment device according to Embodiment 1 of this application; Figure 3 This is a schematic diagram of the exploded structure of the treatment device according to Embodiment 1 of this application; Figure 4 This is a schematic diagram of the filter mechanism in Embodiment 1 of this application; Figure 5 This is a cross-sectional structural schematic diagram of the filtering mechanism in Embodiment 1 of this application; Figure 6 This is an exploded structural diagram of the filtering mechanism in Embodiment 1 of this application; Figure 7 This is an exploded view of the filter mechanism in Embodiment 1 of this application; Figure 8 This is a schematic diagram of the exploded structure of the treatment device according to Embodiment 2 of this application.

[0017] Explanation of reference numerals in the attached figures: 1. Outer shell; 11. Handle section; 12. Mounting section; 121. Opening; 122. Metal plate; 1221. Beam opening; 123. Air inlet; 124. Air outlet; 125. Notch; 2. Optical waveguide assembly; 21. Optical waveguide body; 22. Upper shell of optical waveguide; 23. Lower shell of optical waveguide; 3. Laser; 4. Heat dissipation assembly; 41. Fan; 42. Heat dissipation tower; 421. Groove; 422. Heat pipe; 423. Heat exchange block; 4 24. Semiconductor cooling chip; 425. Heat-conducting block; 5. Circuit board; 6. Filtering mechanism; 61. Mounting side plate; 611. Connecting strip; 612. Baffle strip; 6121. Slide groove; 613. Limiting strip; 62. Filter screen; 621. Filter screen; 622. Slide frame; 623. Slide bar; 624. Pull belt; 625. Cylinder; 7. Push plate; 71. Slider; 8. Guide bar; 81. Mounting block; 82. Spring; 9. Three-pin DC socket. Detailed Implementation

[0018] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0019] Example 1 This application discloses a portable high-energy laser therapy device. (Refer to...) Figures 1-7 The laser therapy device includes a housing 1 and an optical waveguide assembly 2, a laser 3, a heat dissipation assembly 4, and a circuit board 5 installed inside the housing 1. The housing 1 is divided into a lower handle portion 11 and an upper mounting portion 12. One end of the mounting portion 12 is provided with an opening 121, and a metal plate 122 is provided on the end face of the opening 121. The heat dissipation assembly 4 includes a fan 41 and a heat dissipation tower 42. The heat dissipation tower 42 is installed on the housing 1, and the fins of the heat dissipation tower 42 face away from the metal plate 122. The laser 3 is installed on the heat dissipation tower 42 near the metal plate. At the end of 122, fan 41 is installed on the fin side of heat sink 42 away from metal plate 122; optical waveguide assembly 2 is installed at the end of heat sink 42 near metal plate 122, and laser from laser 3 is injected into optical waveguide assembly 2; a spot 1221 for optical waveguide assembly 2 to pass through is provided in the middle of metal plate 122; circuit board 5 is installed on top of heat sink 42; multiple air inlets 123 are provided on both sides of the mounting part 12, and multiple air outlets 124 are provided on the end face of mounting part 12 away from metal plate 122.

[0020] Circuit board 5 controls laser 3 to generate pulsed light for physiotherapy. The pulsed light generated by laser 3 is formed into a light spot through optical waveguide component 2. The light spot can be circular or rectangular. The light spot irradiates the area of ​​the patient that needs treatment. Laser 3 generates a large amount of heat, which is transferred to the fins of heat dissipation tower 42. Circuit board 5 controls fan 41 to work. The air inlet 123 and air outlet 124 on both sides of mounting part 12 form a complete air duct. Fan 41 draws in hot air from heat dissipation tower 42, removes the heat, and sends it out of the machine through air outlet 124, creating negative pressure. Cold air from outside the machine enters the heat dissipation fins through air inlet 123 and exchanges heat with them. By combining circuit board 5, laser 3, optical waveguide component 2, and heat dissipation component 4 in the outer shell 1, the overall structure of the treatment device is reduced in size and made easy to carry. Patients can purchase it themselves and use it at home or when traveling, improving the convenience of treatment for patients.

[0021] The optical waveguide assembly 2 includes an optical waveguide body 21, an upper optical waveguide shell 22, and a lower optical waveguide shell 23. A groove 421 for placing a laser 3 is provided on the end face of the heat sink 42 near the metal plate 122. The end faces of the upper and lower optical waveguide shells 22 and 23 are fitted to the end faces of the heat sink 42 near the metal plate 122 and are detachably connected by bolts. The laser 3 extends into the end faces of the upper and lower optical waveguide shells 22 and 23. The optical waveguide body 21 is located between the upper and lower optical waveguide shells 22 and 23, which are detachably connected by screws. The end of the optical waveguide body 21 extends into the beam aperture 1221. The optical waveguide assembly 2, the heat sink assembly 4, and the circuit board 5 are integrated into a single unit for easy installation and disassembly.

[0022] One end of a heat pipe 422 is bolted to the bottom surface of the heat exchange tower 42 near the end of the metal plate 122. The other end of the heat pipe 422 is connected to a metal heat exchange block 423. A semiconductor cooling chip 424 is installed on the side of the heat exchange block 423. A metal heat-conducting block 425 is connected to the side of the metal plate 122 near the heat exchange tower 42. The semiconductor cooling chip 424 is attached to the side of the metal heat-conducting block 425 away from the metal plate 122.

[0023] The heat dissipation tower 42 carries away the heat from the heat pipe 422, which lowers the temperature of the metal heat exchange block 423 and the semiconductor cooling chip 424. The semiconductor cooling chip 424 cools the metal heat conduction block 425, which lowers the temperature of the metal plate 122. When the metal plate 122 is close to the patient's skin, it will have a cooling effect.

[0024] Two filter mechanisms 6 are installed on the inner wall of the outer casing 1. The two filter mechanisms 6 cover the air inlets 123 on both sides of the outer casing 1 respectively. The filter mechanisms 6 are used to filter the dust entering the outer casing 1.

[0025] The filter mechanism 6 includes a mounting side plate 61 and a filter screen 62. There are two mounting side plates 61, which are connected to the inner wall of the housing 1. The two mounting side plates 61 are located on both sides of the air inlet 123. The filter screen 62 is installed between the two mounting side plates 61, and the filter screen 62 is attached to the inner wall of the housing 1 and covers the air inlet 123.

[0026] Airflow enters the outer casing 1 through the air inlet 123 and passes through the filter screen 62. The filter screen 62 filters the dust in the airflow, reducing the accumulation of dust on the fins of the heat dissipation tower 42 and ensuring good heat dissipation of the heat dissipation tower 42.

[0027] The mounting side plate 61 includes a connecting strip 611 and a baffle 612. The connecting strip 611 is connected to the inner wall of the outer shell 1, and the baffle 612 is connected to the side of the connecting strip 611 near the filter screen 62. The two sides of the filter screen 62 are slidably connected between the baffle 612 and the inner wall of the outer shell 1, respectively. The bottom edge of the filter screen 62 is connected to a pull strap 624. The outer shell 1 is provided with a notch 125 for the pull strap 624 to extend out. The side of the pull strap 624 is connected to a cylinder 625, and the circumference of the cylinder 625 is attached to the circumference of the outer shell 1. Both the filter screen 62 and the pull strap 624 are made of flexible material.

[0028] When too much dust accumulates on the surface of the filter screen 62, the dust can easily clog the filter screen 62 and affect the airflow. By pulling the cylinder 625, the cylinder 625 drives the pull belt 624, which pulls the filter screen 62 outward. The filter screen 62 moves out of the outer shell 1, and then the dust on the filter screen 62 can be cleaned. After cleaning, the filter screen 62 moves back into the outer shell 1 and can continue to filter the airflow entering the outer shell 1.

[0029] The filter screen 62 includes a filter screen 621, a sliding frame 622, and a sliding strip 623. The sliding frame 622 slides on the inner wall of the outer casing 1, and the two sides of the sliding frame 622 slide on the sides of the two connecting strips 611. The air inlet 123 is located between the sliding frames 622, and the filter screen 621 is attached to the side of the sliding frame 622 away from the outer casing 1. There are two sliding strips 623, and the two sliding strips 623 are respectively connected to the side of the filter screen 621 away from the sliding frame 622. The two baffles 612 are provided with sliding grooves 6121 for the two sliding strips 623 to slide on their sides. The ends of the sliding strips 623 and the sides of the sliding frame 622 are connected to the side of the pull strap 624 away from the cylinder 625.

[0030] When the filter screen 62 is pulled, the pull strap 624 pulls the slide bar 623 and the slide frame 622. The slide bar 623 slides in the slide groove 6121, and the slide groove 6121 restricts the slide bar 623. The slide frame 622 slides on the inner wall of the outer shell 1 and expands the filter screen 621, so that the filter screen 62 slides stably.

[0031] A push plate 7 is connected to the side of the slide frame 622 away from the pull strap 624. Slider 71 is connected to both ends of the side of the push plate 7 away from the slide frame 622. Two mounting side plates 61 pass through the two sliders 71 respectively, and the sliders 71 slide on the mounting side plates 61. Guide strips 8 are provided on the sides of the two mounting side plates 61 that are far apart from each other. The guide strips 8 are set along the inner wall of the outer shell 1. Mounting blocks 81 are connected to both ends of the guide strips 8. The mounting blocks 81 are connected to the inner wall of the outer shell 1. The two guide strips 8 pass through the two sliders 71 respectively. A spring 82 is provided on the outer sleeve of the guide strips 8. One end of the spring 82 is connected to the side of the slider 71, and the other end of the spring 82 is connected to the mounting block 81 near the notch 125.

[0032] When the filter screen 62 is pulled to slide out of the outer casing 1, the filter screen 62 drives the push plate 7, the push plate 7 drives the slider 71 to slide, the slider 71 slides on the guide bar 8, and the slider 71 compresses the spring 82; when the filter screen 62 is released, the spring 82 rebounds, the spring 82 pushes the slider 71, the slider 71 drives the push plate 7, the push plate 7 drives the filter screen 62 to be retracted, and the filter screen 62 is retracted into the outer casing 1.

[0033] A limiting strip 613 is connected between the two baffles 612 near the end of the pull strap 624. The limiting strip 613 is used to block the slider 71. When the filter screen 62 is pulled, the limiting strip 613 restricts the slider 71 from continuing to slide, preventing the filter screen 62 from being pulled out of the outer shell 1 excessively and causing damage.

[0034] The heat sink 42 has a mounting port on the side of the fins away from the metal plate 122. The fan 41 is embedded in the mounting port, and part of the fan 41 is wrapped by the fins of the heat sink 42. This ensures efficient heat dissipation while keeping the heat dissipation component 4 small in size.

[0035] Laser 3 is a VCSEL semiconductor laser with its emission direction perpendicular to the substrate, which allows for easy integration of high-density two-dimensional arrays and facilitates multi-wavelength output with different power levels and even higher power output. The wavelength of laser 3 is 400nm-2000nm.

[0036] VCSEL semiconductor laser 3 has the following advantages: (1) It has a small far-field divergence angle and a narrow emitted beam. It can easily achieve the output of a specified spot shape without the need for a complex and expensive beam shaping system. In specific applications, if a VCSEL semiconductor laser 3 of appropriate size is used, the optical waveguide component 2 can also be omitted, and the laser can be output directly through the sapphire window.

[0037] (2) The relatively high voltage and low current make it easy to achieve control.

[0038] (3) Low threshold current and high modulation frequency.

[0039] (4) It operates in a single longitudinal mode over a wide range of temperature and current.

[0040] (5) The process of manufacturing and testing is relatively simple and the cost is low.

[0041] Circuit board 5 is equipped with Wi-Fi and Bluetooth functions.

[0042] The bottom of the handle section 11 is equipped with a three-pin DC socket 9, which has positive and negative terminals, with the middle pin used for communication. It is powered internally by a lithium battery and can also be powered by an external adapter.

[0043] The heat generated by the laser 3 and the semiconductor cooling chip 424 is directly transferred to the heat dissipation component 4, and then the heat is transferred to the fins of the heat dissipation tower 42.

[0044] The implementation principle of a portable high-energy laser therapy device according to this application embodiment is as follows: Circuit board 5 controls laser 3 to generate pulsed light to perform physiotherapy. The pulsed light generated by laser 3 forms a light spot through optical waveguide component 2. The light spot can be circular or rectangular. The light spot irradiates the area of ​​the patient that needs treatment. Laser 3 generates a large amount of heat, which is transferred to the fins of heat dissipation tower 42. Circuit board 5 controls fan 41 to work. Air inlets 123 and outlets 124 on both sides of mounting part 12 form a complete air duct. Fan 41 draws in hot air from heat dissipation tower 42, removes the heat, and sends it out of the machine through outlet 124, forming a negative pressure. Cold air from outside the machine enters the heat dissipation fins through air inlets 123 and exchanges heat with them. By combining circuit board 5, laser 3, optical waveguide component 2, and heat dissipation component 4 in the outer shell 1, the overall structure of the therapy device is reduced in size and made easy to carry. Patients can purchase it themselves and use it at home or when going out, improving the convenience of treatment for patients.

[0045] Example 2 This application discloses a portable high-energy laser therapy device, referring to... Figure 8 The difference from Embodiment 1 is that a support plate 421 is connected to the side of the heat dissipation tower 42, and the laser 3 is mounted on the top surface of the support plate 421. The laser 3 is an edge-emitting laser (EEL), meaning that the light emission direction is parallel to the substrate surface. The edge-emitting laser 3 has a large divergence angle, an elliptical output spot, and features low voltage and high current.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable high-energy laser therapy device, characterized in that: The device includes a housing (1) and an optical waveguide assembly (2), a laser (3), a heat dissipation assembly (4), and a circuit board (5) installed inside the housing (1). The housing (1) is divided into a handle part (11) and a mounting part (12). A metal plate (122) is provided at one end of the mounting part (12). The heat dissipation assembly (4) includes a fan (41) and a heat dissipation tower (42). The heat dissipation tower (42) is installed on the housing (1). The fins of the heat dissipation tower (42) face away from the metal plate (122). The laser (3) is installed at the end of the heat dissipation tower (42) near the metal plate (122). The fan (41) is installed at the end of the heat dissipation tower (42) near the metal plate (122). 1) Installed on the side of the fins away from the metal plate (122) of the heat dissipation tower (42); the optical waveguide assembly (2) is installed at the end of the heat dissipation tower (42) near the metal plate (122), and the laser of the laser (3) is injected into the optical waveguide assembly (2); a spot (1221) for the optical waveguide assembly (2) to pass through is provided in the middle of the metal plate (122); the circuit board (5) is installed on the top of the heat dissipation tower (42); multiple air inlets (123) are provided on both sides of the periphery of the mounting part (12), and multiple air outlets (124) are provided on the end face of the mounting part (12) away from the metal plate (122).

2. The portable high-energy laser therapy device according to claim 1, characterized in that: The optical waveguide assembly (2) includes an optical waveguide body (21), an upper optical waveguide shell (22), and a lower optical waveguide shell (23); the heat sink (42) has a groove (421) for placing a laser (3) on the end face near the metal plate (122); the end faces of the upper optical waveguide shell (22) and the lower optical waveguide shell (23) are attached to the end face of the heat sink (42) near the metal plate (122) and are detachably connected; the laser (3) extends into the end faces of the upper optical waveguide shell (22) and the lower optical waveguide shell (23); the optical waveguide body (21) is located between the upper optical waveguide shell (22) and the lower optical waveguide shell (23), and the upper optical waveguide shell (22) and the lower optical waveguide shell (23) are detachably connected; the end of the optical waveguide body (21) extends into the spot (1221).

3. The portable high-energy laser therapy device according to claim 1, characterized in that: The bottom surface of the heat sink (42) near the end of the metal plate (122) is connected to one end of a heat pipe (422), and the other end of the heat pipe (422) is connected to a heat exchange block (423). A semiconductor cooling chip (424) is installed on the side of the heat exchange block (423). A heat conduction block (425) is connected to the side of the metal plate (122) near the heat sink (42), and the semiconductor cooling chip (424) is attached to the side of the heat conduction block (425) away from the metal plate (122).

4. A portable high-energy laser therapy device according to claim 1, characterized in that: Two filter mechanisms (6) are installed on the inner wall of the outer casing (1). The two filter mechanisms (6) cover the air inlets (123) on both sides of the outer casing (1). The filter mechanisms (6) are used to filter the dust entering the outer casing (1).

5. A portable high-energy laser therapy device according to claim 4, characterized in that: The filtration mechanism (6) includes a mounting side plate (61) and a filter screen (62). There are two mounting side plates (61), which are connected to the inner wall of the outer shell (1). The two mounting side plates (61) are located on both sides of the air inlet (123). The filter screen (62) is installed between the two mounting side plates (61), and the filter screen (62) is attached to the inner wall of the outer shell (1) and covers the air inlet (123).

6. A portable high-energy laser therapy device according to claim 5, characterized in that: The mounting side panel (61) includes a connecting strip (611) and a baffle (612). The connecting strip (611) is connected to the inner wall of the outer shell (1), and the baffle (612) is connected to the side of the connecting strip (611) near the filter screen (62). The two sides of the filter screen (62) are slidably connected between the baffle (612) and the inner wall of the outer shell (1). The bottom edge of the filter screen (62) is connected to a pull strap (624). The outer shell (1) is provided with a notch (125) for the pull strap (624) to extend out. The side of the pull strap (624) is connected to a cylinder (625), and the circumference of the cylinder (625) is attached to the circumference of the outer shell (1).

7. A portable high-energy laser therapy device according to claim 6, characterized in that: The filter screen (62) includes a filter screen (621), a sliding frame (622) and a sliding strip (623). The sliding frame (622) slides on the inner wall of the outer shell (1), and the two sides of the sliding frame (622) slide on the sides of the two connecting strips (611). The air inlet (123) is located between the sliding frames (622), and the filter screen (621) is attached to the side of the sliding frame (622) away from the outer shell (1). There are two sliding strips (623), and the two sliding strips (623) are respectively connected to the side of the filter screen (621) away from the sliding frame (622). The two baffles (6122) are provided with sliding grooves (6121) for the two sliding strips (623) to slide. The ends of the sliding strips (623) and the sides of the sliding frame (622) are connected to the side of the pull strap (624) away from the cylinder (625).

8. A portable high-energy laser therapy device according to claim 7, characterized in that: A push plate (7) is connected to the side of the slide frame (622) away from the pull strap (624). The two ends of the push plate (7) away from the slide frame (622) are connected to sliders (71). Two mounting side plates (61) pass through the two sliders (71) respectively, and the sliders (71) slide on the mounting side plates (61). Guide strips (8) are provided on the sides of the two mounting side plates (61) away from each other. The guide strips (8) are set along the inner wall of the outer shell (1). The two ends of the guide strips (8) are connected to mounting blocks (81). The mounting blocks (81) are connected to the inner wall of the outer shell (1). The two guide strips (8) pass through the two sliders (71) respectively. A spring (82) is provided on the outer sleeve of the guide strips (8). One end of the spring (82) is connected to the side of the slider (71), and the other end of the spring (82) is connected to the mounting block (81) near the notch (125).

9. A portable high-energy laser therapy device according to claim 1, characterized in that: The bottom of the handle (11) is set as a three-pin DC socket (9), which has positive and negative terminals. The middle pin can communicate. It is powered by an internal lithium battery and can be powered by an external adapter.

10. A portable high-energy laser therapy device according to claim 1, characterized in that: The heat sink (42) has an installation port on the side of the fins away from the metal plate (122), and the fan (41) is embedded in the installation port. The fan (41) is partially wrapped by the fins of the heat sink (42).

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