Super-pulse thulium fiber laser therapy apparatus

Abstract

The invention provides an ultra-pulse thulium fiber laser therapy apparatus which comprises a laser, an electrical device and a coupler, the laser is connected with the coupler through a thulium fiber, the laser and the coupler are respectively connected with the electrical device through circuits, and the electrical device is connected with the coupler through a thulium fiber. The electrical device controls the operation of the laser and the coupler, the optical fiber is a thulium optical fiber emitted by the laser, and the wavelength of the laser is 1940 nanometers. The ultra-pulse thulium fiber laser therapy apparatus replaces a previous water cooling device and adopts a 1940nm laser internal air cooling device, so that the ultra-pulse thulium fiber laser therapy apparatus is more compact in structure, lighter in weight and smaller in size, and the problems of noise, frequent maintenance and replacement and the like caused by a large cooling-water machine are solved.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to an ultra-pulse thulium fiber laser therapy machine. Background Art

[0002] In recent years, the incidence of urinary system stones has been extremely high. Holmium laser lithotripsy has entered grass-roots hospitals due to its high safety, convenient operation, and thorough lithotripsy, and has become an essential medical device in county-level hospitals.

[0003] In the prior art, as Figure 1 shown, it is the 30-year gold standard for Ho:YAG laser lithotripsy: Stage 1: Only the pulse energy and frequency can be adjusted, with a short pulse width of 300 us; Stage 2: The pulse width is adjustable, and a long pulse width leads to powderization, with a pulse width of 600 us or more; Stage 3: Moses double pulse, Boston Scientific Burst triple pulse.

[0004] Mainstream holmium laser lithotripsy causes little damage to normal tissues around the stones, has good hemostatic effect, can be transmitted by optical fiber, and can be combined with electronic endoscope technology to achieve minimally invasive surgery. However, holmium laser lithotripsy also has certain defects:

[0005] 1. During holmium laser lithotripsy, the displacement of the stone is relatively large, making it difficult to accurately control. Especially when dealing with upper ureteral stones and kidney stones, the powderization efficiency is relatively low, the lithotripsy time is relatively long, and other consumables are required.

[0006] 2. The spot size is relatively large:

[0007] After the spot size is 300 μm and the minimum diameter of the optical fiber is 200 μm, the energy transmission attenuates, the optical fiber loss is large, light leakage is likely to occur, and the endoscope is damaged; the optical fiber is relatively thick, occupying the operation channel, affecting the water reflux, and also affecting the flexible bending of the front end of the flexible endoscope; the spot is uneven and easy to be damaged.

[0008] 3. After accidentally burning the mucosa during lithotripsy, bleeding and oozing are likely to occur.

[0009] 4. The input power is as high as 7 kw, and a dedicated circuit is required.

[0010] 5. It generates a large amount of heat during operation, with air cooling + water cooling and a large noise.

[0011] Based on the defects of holmium laser lithotripsy in the prior art, that is, the relatively large displacement of the stone during lithotripsy and the low lithotripsy efficiency, it is of certain significance to study the lithotripsy effect of lasers with other wavelengths.

[0012] Therefore, there is a need to propose a new fiber laser therapy machine to solve the technical problems in the prior art. Summary of the Invention

[0013] The present invention provides an ultra-pulsed thulium fiber laser therapy machine, which at least solves the defects of the existing holmium laser lithotripsy technology, namely, the large displacement of the stone during the lithotripsy process and the low lithotripsy efficiency. To solve the above technical problems, the present invention provides an ultra-pulsed thulium fiber laser therapy machine with a wavelength of 1940 nm.

[0014] The present invention provides an ultra-pulsed thulium fiber laser therapy machine. The above ultra-pulsed thulium fiber laser therapy machine includes a laser, electrical devices, and a coupler. The above laser and the above coupler are connected by a thulium fiber. The above laser and the above coupler are respectively connected to the above electrical devices through circuits, so that the above electrical devices control the operation of the above laser and the above coupler. The above fiber is the thulium fiber emitted by the above laser, and the wavelength of the above laser is 1940 nanometers.

[0015] Optionally, the above ultra-pulsed thulium fiber laser therapy machine further includes a main board, a thulium fiber laser head, and a lithotripsy energy transmission fiber. The above main board, the above electrical devices, and the above laser are sequentially connected by circuits. The operation and parameter adjustment of the above laser are controlled by the above main board. The above laser and the above coupler are connected by the above thulium fiber laser head. One end of the above lithotripsy energy transmission fiber is connected to the above coupler.

[0016] Optionally, the above ultra-pulsed thulium fiber laser therapy machine further includes an air cooling device. The above air cooling device is close to the power supply of the above ultra-pulsed thulium fiber laser therapy machine to dissipate heat from the above ultra-pulsed thulium fiber laser therapy machine.

[0017] Optionally, the above air cooling device includes a fan.

[0018] Optionally, the other end of the above lithotripsy energy transmission fiber is connected to the treatment end of the above ultra-pulsed thulium fiber laser therapy machine.

[0019] Optionally, the above laser is located at the bottom layer of the above ultra-pulsed thulium fiber laser therapy machine. The above coupler is a coupler for 1940-nanometer laser. The above coupler is located at the top layer of the frame of the above ultra-pulsed thulium fiber laser therapy machine. The above electrical devices are located in the middle of the above laser and the above coupler. The above electrical devices are placed in an inverted manner on the middle layer of the frame of the above ultra-pulsed thulium fiber laser therapy machine.

[0020] Optionally, the above laser controls the above circuit through the above electrical devices.

[0021] Optionally, the above laser includes an LD pump source, an LD pilot light, a fiber combiner, a high reflector, a thulium-doped fiber, a low reflector, and a stripper. The above LD pump source, the above LD pilot light, the above fiber combiner, the above high reflector, the above thulium-doped fiber, the above low reflector, and the above stripper are connected by the above fiber to transmit laser.

[0022] Optionally, the laser light emitted by the above-mentioned laser is connected to the above-mentioned thulium fiber laser head via the above-mentioned optical fiber. After passing through the inside of the above-mentioned thulium fiber laser head, it is then connected to the above-mentioned lithotripsy energy transmission optical fiber to reach the treatment end of the above-mentioned ultra-pulse thulium fiber laser therapy machine.

[0023] Optionally, the above-mentioned laser is a 1940-nanometer laser. It consists of an all-fiber resonant cavity composed of a fiber grating and a thulium-doped fiber, which generates 1940-nanometer high-brightness laser light, and realizes pulse output by means of direct electronic tuning.

[0024] Since the above-mentioned ultra-pulse thulium fiber laser therapy machine replaces the previous water-cooling device with an internal air-cooling device of a 1940nm laser, it is more compact in structure, lighter in weight, smaller in volume, and also avoids problems such as noise and frequent maintenance and replacement brought by large water chillers.

[0025] The above-mentioned ultra-pulse thulium fiber laser therapy machine can achieve a peak power of up to 600W at full pulse width, a maximum pulse repetition frequency of up to 10KHZ in terms of equipment parameters, higher energy, higher single-pulse energy, higher duty cycle, better lithotripsy effect, and the adapted fiber size can be as fine as 50μm, with a smaller spot size and higher beam quality. In addition, the noise is lower and the comfort is better.

[0026] In terms of the surgical treatment effect, the above-mentioned ultra-pulse thulium fiber laser therapy machine has a better effect of stone lithotripsy and enucleation, shorter operation time, lower risk, bringing better surgical treatment effect and lower cost to patients.

[0027] For doctors and hospitals, the above-mentioned ultra-pulse thulium fiber laser therapy machine is more portable, lower in cost, more convenient and comfortable to operate, and also more convenient to maintain.

[0028] This patent belongs to the technical field of medical devices. In order to solve the problem of urinary system stones, an ultra-pulse thulium fiber laser therapy machine is disclosed.

[0029] 1. Under the same parameter settings, thulium laser can ablate more stone volume; the same stone ablation effect can be achieved with lower energy (about 1 / 4 of holmium laser).

[0030] 2. The degree of powderization is higher and the particles are finer. Different from the powderization of holmium laser, thulium laser can crush the stone to less than 0.5mm (haze-like), and directly wash it out of the body during the operation.

[0031] 3. Ultra-low single-pulse energy can achieve in-situ lithotripsy, reducing the time for finding stones during the operation; ultra-high frequency, with excellent adsorption ability for small-sized stones. The fiber head is far from the mucosa, adsorbing the stone around the fiber, and performing the safest lithotripsy.

[0032] 4. The thulium laser has a small spot size and can be used with a finer optical fiber. It can reach smaller stone sites, improving the efficiency of lithotripsy under ureteroscopy and reducing the use of PCNL.

[0033] 5. The thulium laser has a shallow tissue penetration depth (0.1 mm), making it safer to use.

[0034] 6. It has a low power, does not require electricity modification, can be used with a common power socket, reducing the installation cost and having higher energy efficiency, saving energy and electricity.

[0035] 7. The laser has a long working life, the energy does not decay, and it makes little noise during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features, and advantages of the exemplary embodiments of the present invention will become readily understandable. In the drawings, several embodiments of the present invention are shown in an exemplary rather than restrictive manner, where:

[0037] Figure 1 FIG. is a schematic diagram of an optional Ho:YAG laser lithotripsy - the 30-year gold standard provided for the prior art of the present invention;

[0038] Figure 2 FIG. is a schematic diagram of the principle of an optional super-pulse thulium fiber laser therapy machine provided for an embodiment of the present invention;

[0039] Figure 3 FIG. is a schematic diagram of the principle of the laser of an optional super-pulse thulium fiber laser therapy machine provided for an embodiment of the present invention;

[0040] Figure 4 FIG. is a schematic diagram of the frame structure of an optional super-pulse thulium fiber laser therapy machine provided for an embodiment of the present invention;

[0041] Figure 5 FIG. is a schematic diagram of the structure of an optional laser coupler provided for an embodiment of the present invention.

[0042] DESCRIPTION OF THE REFERENCE NUMERALS:

[0043] Laser 1, electrical device 2, coupler 3, main board 4, thulium fiber laser head 5, lithotripsy energy transmission optical fiber 6, air cooling device 7, 520 nm indicating light inlet 31, 1940 nm laser inlet 32, 520 nm indicating light or 1940 nm laser outlet 33. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The principles and spirit of the present invention will be described below with reference to several exemplary embodiments. It should be understood that these embodiments are provided only to enable those skilled in the art to better understand and then implement the present invention, rather than limiting the scope of the present invention in any way. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and complete, and to be able to fully convey the scope of the disclosure of the present application to those skilled in the art.

[0045] This embodiment is as Figures 2 to 5 shown.

[0046] An embodiment of the present invention provides a super-pulse thulium fiber laser therapy machine, as Figure 4 shown. The above-mentioned super-pulse thulium fiber laser therapy machine includes a laser 1, an electrical device 2, and a coupler 3. The above-mentioned laser 1 and the above-mentioned coupler 3 are connected by a thulium fiber. The above-mentioned laser 1 and the above-mentioned coupler 3 are respectively connected to the above-mentioned electrical device 2 through circuits, so that the above-mentioned electrical device 2 controls the operation of the above-mentioned laser 1 and the above-mentioned coupler 3. The above-mentioned fiber is the thulium fiber emitted by the above-mentioned laser 1, and the wavelength of the above-mentioned laser 1 is 1940 nanometers.

[0047] Furthermore, as Figure 4 shown, the above-mentioned super-pulse thulium fiber laser therapy machine further includes a main board 4, a thulium fiber laser head 5, and a lithotripsy energy transmission fiber 6. The above-mentioned main board 4, electrical device 2, and laser 1 are sequentially connected by circuits. The operation and parameter adjustment of the above-mentioned laser 1 are controlled through the above-mentioned main board 4. The above-mentioned laser 1 and the above-mentioned coupler 3 are connected through the above-mentioned thulium fiber laser head 5. One end of the above-mentioned lithotripsy energy transmission fiber 6 is connected to the above-mentioned coupler 3.

[0048] Furthermore, the above-mentioned super-pulse thulium fiber laser therapy machine further includes an air cooling device 7. The above-mentioned air cooling device 7 is close to the power supply of the above-mentioned super-pulse thulium fiber laser therapy machine to dissipate heat from the above-mentioned super-pulse thulium fiber laser therapy machine.

[0049] Furthermore, the above-mentioned air cooling device 7 includes a fan.

[0050] Furthermore, the other end of the above-mentioned lithotripsy energy transmission fiber 6 is connected to the treatment end of the above-mentioned super-pulse thulium fiber laser therapy machine.

[0051] Furthermore, as Figure 4 shown, the above-mentioned laser 1 is located at the bottom layer of the above-mentioned super-pulse thulium fiber laser therapy machine. The above-mentioned coupler 3 is a coupler for 1940-nanometer laser. The above-mentioned coupler 3 is located at the top layer of the frame of the above-mentioned super-pulse thulium fiber laser therapy machine. The above-mentioned electrical device 2 is located between the above-mentioned laser 1 and the above-mentioned coupler 3. The above-mentioned electrical device 2 is placed in an inverted manner on the middle layer of the frame of the above-mentioned super-pulse thulium fiber laser therapy machine.

[0052] Furthermore, the above-mentioned laser 1 controls the above-mentioned circuit through the above-mentioned electrical device 2.

[0053] Furthermore, as Figure 3 shown, the above-mentioned laser 1 includes an LD pump source, LD pilot light, fiber optic combiner, high reflector, thulium-doped fiber, low reflector, and stripper. The above-mentioned LD pump source, the above-mentioned LD pilot light, the above-mentioned fiber optic combiner, the above-mentioned high reflector, the above-mentioned thulium-doped fiber, the above-mentioned low reflector, and the above-mentioned stripper are connected by the above-mentioned optical fiber to transmit laser light.

[0054] Furthermore, the laser light emitted by the above-mentioned laser 1 is connected to the above-mentioned thulium fiber laser head 5 via the above-mentioned optical fiber. After passing through the above-mentioned thulium fiber laser head 5, it is then connected to the above-mentioned lithotripsy energy transfer optical fiber 6 to reach the treatment end of the above-mentioned super-pulsed thulium fiber laser therapy machine.

[0055] Furthermore, the above-mentioned laser 1 is a 1940-nanometer laser. It consists of an all-fiber resonant cavity composed of a fiber grating and a thulium-doped fiber, which generates 1940-nanometer high-brightness laser light, and uses a direct electro-tuning method to achieve pulsed output.

[0056] Figure 2 is the schematic diagram of the super-pulsed thulium fiber laser therapy machine. The thulium fiber laser therapy machine of the fiber laser includes a main board, a coupler, a thulium fiber laser head, an electrical device, a laser, and a lithotripsy energy transfer optical fiber. The connection method between them is that the main board, the laser, and the laser power supply are connected by a circuit. The operation and parameter adjustment of the laser are controlled by controlling the safety protection system and the laser power supply. The laser, the thulium fiber laser head, and the coupler are connected and operated by an optical fiber. The lithotripsy energy transfer optical fiber and the coupler are connected to the connection point of the beam transmission system through the SMA end of the optical fiber.

[0057] Because the air-cooling device of the super-pulsed thulium fiber laser therapy machine in the embodiment of the present invention replaces the previous water-cooling device and adopts the internal air-cooling device of the 1940nm laser, it is more compact in structure, lighter in weight, smaller in volume, and also avoids problems such as noise and frequent maintenance and replacement caused by large water chillers.

[0058] Figure 3 is Figure 2Schematic diagram of the principle of the above-mentioned laser 1. The above-mentioned laser is composed of an LD pump source, an LD pilot light, an optical fiber combiner, a high reflector, a thulium-doped optical fiber, a low reflector, and a stripper. They are connected by optical fibers to transmit laser light. The working principle and the reason for generating high-quality 1940-nm laser are as follows: The LD pump source emits laser light with a wavelength of 793 nm. Multiple LD pump sources emit a large amount of 793-nm laser light. The 793-nm laser light enters the optical fiber combiner. The optical fiber combiner combines multiple pump light beams into one optical fiber. The 793-nm laser light exits the optical fiber combiner and sequentially enters the high reflector, the thulium-doped optical fiber, and the low reflector. The thulium-doped fiber core serves as the gain medium and is fixed between the two reflectors to form a resonant cavity. Thulium belongs to rare earth elements. Rare earth ions absorb pump light, and their electrons are excited to achieve population inversion. The inverted particles transition from a high energy level to a low energy level, outputting laser light. The 793-nm laser light becomes 1940-nm laser light after passing through the thulium-doped optical fiber. The low reflector reflects the 793-nm laser light back, and at the same time, the 1940-nm laser light enters the stripper through the low reflector. The stripper filters out the laser light with wavelengths other than 1940 nm, so that the laser light output is high-quality 1940-nm laser light.

[0059] The ultra-pulse thulium fiber laser therapy machine uses a semiconductor pump as the pump source to excite an all-fiber resonant cavity composed of a fiber grating and a thulium-doped optical fiber to generate 1940-nm high-brightness laser light, and uses a direct electro-optical modulation method to achieve pulse output. The laser light is output from the end of the laser, enters the treatment optical fiber through a coupling device, ensuring that the product has the characteristics of long life, maintenance-free, easy integration, small size, light weight, and high beam quality.

[0060] Based on the existing three-layer structure of the frame structure, the device layout has been adjusted accordingly. It has been changed to place the 1940-nm laser 1 with a two-layer structure on the bottom layer, and the coupler for 1940-nm laser is placed Figure 4 on the top layer of the frame of the thulium laser therapy machine shown. Figure 5 is Figure 4 a detailed description (partial enlarged schematic diagram) of the coupler 3 for 1940-nm laser in Figure 5 In the structure diagram of the coupler 3 for 1940-nm laser in , it includes a 520-nm pilot light input port 31, a 1940-nm laser input port 32, and a 520-nm pilot light or 1940-nm laser output port 33. The internal optical path is transmitted through internal designed paths and reflectors, etc. Relevant electrical devices are placed in an inverted manner. The 1940-nm laser is controlled by an electrical device control circuit. The 1940-nm laser is connected to the optical fiber through the coupler, and the parameters are adjusted through the main control board of the therapy machine, thereby controlling the startup, operation, and adjustment of the overall therapy machine, etc.

[0061] Since the ultra-pulse thulium fiber laser therapy machine replaces the previous water-cooling device and adopts the internal air-cooling device of the 1940nm laser, it is more compact in structure, lighter in weight and smaller in volume. It also avoids problems such as noise (peak noise 38dB, low noise, high comfort) and frequent maintenance and replacement brought by large water chillers.

[0062] It can achieve a peak power of up to 600W at full pulse width, a maximum pulse repetition frequency of up to 10KHZ, higher energy, higher single-pulse energy, higher duty cycle, better lithotripsy effect on the device parameters. Moreover, the adapted fiber size can be as fine as 50μm, the spot is smaller, and the beam quality is higher. In addition, the noise is lower and the comfort is better.

[0063] Reasons for the output fiber of the ultra-pulse thulium fiber laser therapy machine laser to achieve a smaller diameter of the adapted fiber:

[0064] 1. Adopt a high-power thulium ion excitation source: The thulium laser adopts a high-power thulium ion excitation source, which can achieve high peak power and high pulse repetition frequency. High peak power can provide higher energy output, while high pulse repetition frequency can improve work efficiency.

[0065] 2. Optimize the resonator design: By optimizing the resonator design, higher single-pulse energy and higher duty cycle can be achieved. The optimization of the resonator design can improve the energy conversion efficiency and stability of the laser, thus achieving higher single-pulse energy and higher duty cycle.

[0066] 3. Adopt an output fiber with a smaller diameter of the adapted fiber: The thulium laser can adopt an output fiber with a smaller diameter of the adapted fiber, which can achieve a smaller output spot. Through the refinement and optimization of the fiber, a smaller spot and higher beam quality can be achieved.

[0067] In summary, the thulium laser realizes these advantages mainly by adopting a high-power thulium ion excitation source, optimizing the resonator design and adopting an output fiber with a smaller diameter of the adapted fiber.

[0068] Reasons for the improvement of the pulse power, repetition frequency, energy, duty cycle, fiber adaptation size and beam quality of the ultra-pulse thulium fiber laser therapy machine laser 1:

[0069] 1. Improve pulse power and repetition frequency: The thulium laser adopts a more advanced laser design and optimized pumping technology, so that the peak power of the laser pulse can be as high as 600W, and the maximum pulse repetition frequency can reach 10kHz (ours is 2.5K). These technological improvements increase the number of pulses generated per second and the energy of each pulse, improving the overall power output.

[0070] 2. Improve energy and single-pulse energy: Thulium lasers achieve higher energy output and single-pulse energy by increasing the energy storage and amplification efficiency in the laser medium and optimizing the resonator structure of the laser. This means that each pulse carries more energy and can produce a stronger effect on the target.

[0071] 3. Increase the duty cycle: The duty cycle refers to the ratio of the working time of a laser pulse to the cycle time. Thulium lasers increase the duty cycle by optimizing the working mode and pumping system of the laser, resulting in a relatively longer working time and a relatively shorter cycle time for the pulse. A high duty cycle means that the laser pulses interact with the target more frequently, increasing the processing efficiency and lithotripsy effect.

[0072] 4. Adapt to smaller fiber sizes: Thulium lasers use an optimized optical system and modulation method to adapt to smaller fiber sizes, such as 50μm. This makes the light energy more concentrated and the light spot smaller, enabling a higher energy density to be generated in a finer area, improving the processing accuracy and effect.

[0073] 5. Improve the beam quality: Thulium lasers can achieve higher beam quality by adopting more advanced optical designs and laser technologies. High beam quality means that the spatial distribution of the beam is more uniform, the light energy is more concentrated, and the light spot is more rounded, thus improving the energy transmission efficiency and processing quality.

[0074] In summary, by optimizing aspects such as the laser design, pumping technology, optical system, and modulation method, thulium lasers comprehensively improve the pulse power, repetition frequency, energy, duty cycle, fiber adaptability size, and beam quality.

[0075] This super-pulse thulium fiber laser treatment device has better lithotripsy and enucleation effects in surgical treatment, shorter operation time, lower risk, bringing better surgical treatment effects and lower costs to patients.

[0076] For doctors and hospitals, this super-pulse thulium fiber laser treatment device is more portable, has lower costs, is more convenient and comfortable to operate, and is also more convenient to maintain.

[0077] It should be noted that although several units / modules or sub-units / modules of the device are mentioned in the above detailed description, this division is merely exemplary and not mandatory. In fact, according to the embodiments of the present invention, the features and functions of two or more of the above-described units / modules can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0078] Although the spirit and principles of the present invention have been described with reference to several specific embodiments, it should be understood that the present invention is not limited to the specific embodiments disclosed, and the division of each aspect does not mean that the features in these aspects cannot be combined for benefits. This division is only for the convenience of expression. The present invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. An ultra-pulse thulium fiber laser therapy machine, characterized in that, The ultra-pulse thulium fiber laser therapy machine includes a laser (1), electrical components (2), and a coupler (3). The laser (1) and the coupler (3) are connected by a thulium fiber. The laser (1) and the coupler (3) are respectively connected to the electrical components (2) through circuits, so that the electrical components (2) control the operation of the laser (1) and the coupler (3). The fiber is the thulium fiber emitted by the laser (1), and the wavelength of the laser (1) is 1940 nanometers (nm).

2. The ultra-pulse thulium fiber laser therapy machine according to claim 1, characterized in that, The ultra-pulse thulium fiber laser therapy machine further includes a main board (4), a thulium fiber laser head (5), and a lithotripsy energy transmission fiber (6). The main board (4), the electrical components (2), and the laser (1) are sequentially connected through circuits. The operation and parameter adjustment of the laser (1) are controlled by the main board (4). The laser (1) and the coupler (3) are connected through the thulium fiber laser head (5), and one end of the lithotripsy energy transmission fiber (6) is connected to the coupler (3).

3. The ultra-pulse thulium fiber laser therapy machine according to claim 1, characterized in that, The ultra-pulse thulium fiber laser therapy machine further includes an air-cooling device (7). The air-cooling device (7) is close to the power supply of the ultra-pulse thulium fiber laser therapy machine to dissipate heat from the ultra-pulse thulium fiber laser therapy machine.

4. The ultra-pulse thulium fiber laser therapy machine according to claim 3, characterized in that, The air-cooling device (7) includes a fan.

5. The ultra-pulse thulium fiber laser therapy machine according to claim 2, characterized in that, The other end of the lithotripsy energy transmission fiber (6) is connected to the treatment end of the ultra-pulse thulium fiber laser therapy machine.

6. The ultra-pulse thulium fiber laser therapy machine according to claim 1, characterized in that, The laser (1) is located at the bottom layer of the ultra-pulse thulium fiber laser therapy machine. The coupler (3) is a coupler for 1940-nanometer (nm) laser and is located at the top layer of the frame of the ultra-pulse thulium fiber laser therapy machine. The electrical components (2) are located between the laser (1) and the coupler (3), and the electrical components (2) are placed in an inverted manner on the middle layer of the frame of the ultra-pulse thulium fiber laser therapy machine.

7. The ultra-pulse thulium fiber laser therapy machine according to claim 1, characterized in that, The laser (1) controls the circuit through the electrical components (2).

8. The ultra-pulse thulium fiber laser therapy machine according to claim 1, characterized in that, The laser (1) includes an LD pump source, LD indicating light, a fiber combiner, a high reflector, a thulium-doped fiber, a low reflector, and a stripper. The LD pump source, the LD indicating light, the fiber combiner, the high reflector, the thulium-doped fiber, the low reflector, and the stripper are connected through the fiber to transmit laser light.

9. The ultra-pulse thulium fiber laser therapy machine according to claim 2, characterized in that, The laser light emitted by the laser (1) is connected to the thulium fiber laser head (5) through the fiber. After passing through the thulium fiber laser head (5), it is then connected to the lithotripsy energy transmission fiber (6) and reaches the treatment end of the ultra-pulse thulium fiber laser therapy machine.

10. The ultra-pulse thulium fiber laser therapy machine according to claim 1, characterized in that, The laser (1) is a 1940-nanometer (nm) laser. It consists of an all-fiber resonant cavity composed of a fiber grating and a thulium-doped fiber, generates 1940-nanometer (nm) high-brightness laser light, and realizes pulse output by means of direct electrical tuning.

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