Ultra-pulsed thulium-doped fiber laser treatment device and irradiation method thereof

Abstract

The present invention discloses an ultra-pulsed thulium-doped fiber laser treatment device and an irradiation method thereof. The ultra-pulsed thulium-doped fiber laser treatment device includes a thulium-doped fiber laser generating component, an auxiliary laser component, an ultra-pulsed component, and an optical path coupling component. When performing surgery on a patient, the modulator is first placed in the first state. At this time, only the second laser with a larger wavelength preheats the patient's surgical site; after preheating, the surgeon switches the state of the ultra-pulsed component to the second state. At this time, the first laser is modulated into an ultra-pulsed laser and coupled with the second laser to irradiate the patient's surgical site in the form of high-energy, short pulses for precise cutting and ablation. Manual step-by-step adjustment of the laser power is no longer required, making the surgeon's operation more convenient. It can be seen that this solution reduces the proficiency requirements for the surgeon to improve the stability of the ultra-pulsed thulium-doped fiber laser treatment device.

Description

Technical Field

[0001] The present invention relates to the field of laser medical equipment, and in particular to an ultra-pulsed thulium-doped fiber laser treatment device and an irradiation method thereof. Background Art

[0002] Laser medical devices are active devices that utilize lasers of specific wavelengths to treat patients. High-energy, focused lasers precisely target specific areas of the patient's body to cut, burn, or otherwise damage the affected area. Laser medical devices are widely used in clinical treatment areas such as dermatology, ophthalmology, dentistry, and surgery. Laser medical devices can be categorized by laser type, including holmium-doped fiber laser therapy devices and thulium-doped fiber laser therapy devices.

[0003] Taking the thulium-doped fiber laser therapy device as an example, it uses a laser generating medium doped with thulium elements to generate laser. The wavelength of the laser is about 1.9μm to 2.0μm, which can be effectively absorbed by water and biological tissues and is suitable for surgical cutting and tissue ablation.

[0004] Conventional thulium-doped fiber laser therapy equipment, under the operation of a surgeon, irradiates the patient's surgical site with laser light. Generally speaking, the surgeon will gradually increase the laser power of the thulium-doped fiber laser therapy equipment according to the patient's condition to avoid local tissue thermal damage caused by sudden high-energy irradiation. Obviously, the above solution is difficult to operate and requires the surgeon to make real-time adjustments based on the situation, which has the disadvantage of being cumbersome to operate. At the same time, the above solution relies on the proficiency of the surgeon, and due to individual differences among surgeons, the treatment effect is unstable.

[0005] Therefore, it is necessary to develop a new thulium-doped fiber laser treatment device to solve the technical problems of thulium-doped fiber laser treatment devices in the existing technology, such as cumbersome operation and insufficient stability. Summary of the Invention

[0006] The purpose of the present invention is to provide an ultra-pulsed thulium-doped fiber laser treatment device and an irradiation method thereof, so as to solve the technical problems of thulium-doped fiber laser treatment devices in the prior art, such as cumbersome operation and insufficient stability.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] An ultra-pulsed thulium-doped fiber laser treatment device, comprising:

[0009] A thulium-doped fiber laser generating component, wherein the thulium-doped fiber laser generating component is used to generate a first laser of a first wavelength;

[0010] an auxiliary laser assembly, the auxiliary laser assembly being used to produce a second laser of a second wavelength;

[0011] a superpulse assembly comprising a modulator configured with a first state and a second state;

[0012] an optical coupling component, the optical coupling component being used to couple the first laser and the second laser, and input the coupled lasers into the super pulse component;

[0013] The second wavelength is greater than the first wavelength. When the modulator is in the first state, the modulator blocks the first laser. When the modulator is in the second state, the modulator is used to increase the peak power of the first laser.

[0014] Optionally, the modulator is an electro-optical modulator;

[0015] When the electro-optical modulator is in a first state, the voltage of the electro-optical modulator is a blocking voltage value to block the first laser; when the electro-optical modulator is in a second state, the voltage of the electro-optical modulator switches between the first working state and the second working state at a preset frequency to modulate the first laser.

[0016] Optionally, the electro-optic modulator includes a lithium niobate crystal or a gallium arsenide crystal.

[0017] Optionally, a liquid cooling component is further included, and the thulium-doped fiber laser generating component, the auxiliary laser component and the super pulse component are all installed on the liquid cooling component.

[0018] Optionally, the liquid cooling assembly includes a liquid cooling plate, wherein a first liquid cooling cavity, a second liquid cooling cavity, a third liquid cooling cavity and a liquid inlet channel are formed in the liquid cooling plate;

[0019] The liquid inlet channel is used to input cooling liquid. The first liquid-cooling cavity is arranged corresponding to the position of the thulium-doped fiber laser generating component, the second liquid-cooling cavity is arranged corresponding to the position of the auxiliary laser component, and the third liquid-cooling cavity is arranged corresponding to the position of the superpulse component. The liquid inlet channel is respectively connected to the first liquid-cooling cavity, the second liquid-cooling cavity and the third liquid-cooling cavity.

[0020] Optionally, a flow diversion component is installed at the outlet of the liquid inlet channel, and the flow diversion component is respectively connected to the first liquid-cooling cavity, the second liquid-cooling cavity and the third liquid-cooling cavity;

[0021] When the modulator is in the first state, a first flow rate from the flow diverter assembly to the first liquid-cooling cavity is smaller than a second flow rate from the flow diverter assembly to the second liquid-cooling cavity and a third flow rate from the flow diverter assembly to the third liquid-cooling cavity.

[0022] When the modulator is in the second state, the third flow rate from the shunt component to the third liquid-cooling cavity is smaller than the first flow rate from the shunt component to the first liquid-cooling cavity and the second flow rate from the shunt component to the second liquid-cooling cavity.

[0023] Optionally, the flow diversion assembly includes a rotating device and a rotating base mounted on a rotating end of the rotating device, wherein a first protrusion and a second protrusion are convexly provided on the rotating base and arranged at an angle; and a flow hole is respectively formed on the first protrusion and the second protrusion;

[0024] When the modulator is in the first state, the first protrusion is located at the outlet of the liquid inlet channel, and the second protrusion is located at the inlet of the first liquid-cooling cavity;

[0025] When the modulator is in the second state, the second bump is located at the outlet of the liquid inlet channel, and the first bump is located at the inlet of the third liquid-cooling cavity.

[0026] Optionally, the auxiliary laser component includes a carbon dioxide laser exciter, the first wavelength is 1900 nanometers, and the second wavelength is 10600 nanometers.

[0027] An irradiation method of an ultra-pulsed thulium-doped fiber laser treatment device, using the ultra-pulsed thulium-doped fiber laser treatment device as described above, comprising:

[0028] The super pulse assembly is placed in a first state, the first laser is blocked by the super pulse assembly, and preheating is performed with the second laser by the auxiliary laser assembly;

[0029] The super pulse component is placed in a second state, the peak power of the first laser is increased by the super pulse component, and cutting is performed by coupling the first laser and the second laser.

[0030] Optionally, before placing the super pulse component in the first state, the method further includes:

[0031] Start the auxiliary laser assembly;

[0032] Before placing the super pulse component in the second state, the method further includes:

[0033] Start the thulium-doped fiber laser generator assembly.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The present invention provides an ultrapulsed thulium-doped fiber laser treatment device and an irradiation method thereof. When performing surgery on a patient, the modulator is first placed in a first state. Only a second laser with a larger wavelength preheats the patient's surgical site. After preheating, the surgeon switches the ultrapulsed component to a second state. The first laser is modulated into an ultrapulsed laser (with a higher peak power) and coupled with the second laser to irradiate the patient's surgical site in the form of high-energy, short pulses for precise cutting and ablation. In this process, preheating with the second laser requires only a single switch, eliminating the need for manual, step-by-step adjustment of laser power, making the surgeon's operation more convenient. Furthermore, this solution reduces the surgeon's proficiency requirements, thereby improving the stability of the ultrapulsed thulium-doped fiber laser treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0038] Figure 1 A schematic diagram of the principle structure of an ultra-pulsed thulium-doped fiber laser treatment device provided by an embodiment of the present invention;

[0039] Figure 2 A schematic diagram of the first state structure of the ultra-pulsed thulium-doped fiber laser treatment device provided by an embodiment of the present invention;

[0040] Figure 3 A schematic diagram of the second state structure of the ultra-pulsed thulium-doped fiber laser treatment device provided by an embodiment of the present invention;

[0041] Figure 4 Schematic diagram of the structure of the diversion component in an embodiment of the present invention.

[0042] Illustrations: 10. Thulium-doped fiber laser generating assembly; 20. Auxiliary laser assembly; 30. Optical path coupling assembly; 40. Super pulse assembly; 50. Liquid cooling assembly; 51. Liquid cooling plate; 511. First liquid cooling cavity; 512. Second liquid cooling cavity; 513. Third liquid cooling cavity; 514. Liquid inlet channel; 52. Diverter assembly; 521. First bump; 522. Second bump; 523. Rotating base; 524. Flow hole. DETAILED DESCRIPTION

[0043] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0045] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0046] like Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the principle structure of the ultra-pulsed thulium-doped fiber laser treatment device provided by an embodiment of the present invention. Figure 2 This is a schematic diagram of the first state structure of the ultra-pulsed thulium-doped fiber laser treatment device provided by an embodiment of the present invention, Figure 3 This is a schematic diagram of the second state structure of the ultra-pulsed thulium-doped fiber laser treatment device provided by an embodiment of the present invention, Figure 4 Schematic diagram of the structure of the diversion component in an embodiment of the present invention.

[0047] Example 1:

[0048] The ultra-pulsed thulium-doped fiber laser treatment device provided in this embodiment is used as an active device in clinical treatment to assist surgeons in performing operations such as cutting or burning. This embodiment improves the structure of the ultra-pulsed thulium-doped fiber laser treatment device to make its operation simpler and more stable.

[0049] like Figure 1 As shown, the ultra-pulse thulium-doped fiber laser treatment device in this embodiment includes a thulium-doped fiber laser generating component 10, an auxiliary laser component 20, an ultra-pulse component 40 and an optical coupling component 30; wherein, the thulium-doped fiber laser generating component 10 and the auxiliary laser component 20 are both used to produce lasers, and the principle of generating lasers is well known to those skilled in the art and is not specifically elaborated in this embodiment; the optical coupling component 30 can specifically use a wavelength division multiplexer, which can couple two laser beams and input them into the ultra-pulse component 40, or input a single laser beam into the ultra-pulse component 40, without specific limitation; the ultra-pulse component 40 can modulate the laser in a specified wavelength range to reduce its pulse width to increase the peak power of the laser. In addition, the ultra-pulse component 40 is transparent to other lasers other than the specific wavelength, that is, it does not affect the passage of other lasers.

[0050] Specifically, the thulium-doped fiber laser generating component 10 is used to generate a first laser of a first wavelength; the auxiliary laser component 20 is used to produce a second laser of a second wavelength; the super pulse component 40 includes a modulator configured with a first state and a second state; the optical path coupling component 30 is used to couple the first laser and the second laser, and input the coupled laser into the super pulse component 40; wherein, the second wavelength is greater than the first wavelength, when the modulator is in the first state, the modulator blocks the first laser, and when the modulator is in the second state, the modulator is used to increase the peak power of the first laser; it can be understood that when the modulator is in the second state, it can modulate the first laser by periodically blocking and turning on the first laser to reduce its pulse width, thereby increasing the peak energy.

[0051] Therefore, when performing surgery on a patient, the ultrapulsed thulium-doped fiber laser therapy device of this embodiment first places the modulator in the first state. In this state, only the second laser light with a larger wavelength preheats the surgical site. After preheating, the surgeon switches the ultrapulsed assembly 40 to the second state. At this point, the first laser light is modulated into an ultrapulsed laser light (with a higher peak power) and coupled with the second laser light. High-energy, short pulses are then applied to the surgical site, achieving precise cutting and ablation. In this process, preheating with the second laser light requires only a single switch, eliminating the need for manual, step-by-step laser power adjustment. This makes the operation more convenient for the surgeon and reduces the surgeon's skill requirements, thereby improving stability. Furthermore, by coupling the first and second laser lights through the optical coupling assembly 30 and integrating them into the ultrapulsed assembly 40, the ultrapulsed thulium-doped fiber laser therapy device can be made more compact.

[0052] In this embodiment, the modulator is an electro-optical modulator; when the electro-optical modulator is in a first state, the voltage of the electro-optical modulator is a blocking voltage value to block the first laser; when the electro-optical modulator is in a second state, the electro-optical modulator switches between the first working state and the second working state at a preset frequency to modulate the first laser. It can be understood that due to the fast response characteristics of the electro-optical modulator, the switch from blocking to conducting can be completed in a very short time, so that the pulse width of the first laser can be precisely modulated, thereby accurately controlling the energy of the first laser irradiation and improving the accuracy and effect of the treatment. Specifically, the electro-optical modulator includes a lithium niobate crystal or a gallium arsenide crystal. When in the first state or the first working state, it means that the electro-optical modulator is in a blocking state, and the second working state means that the electro-optical modulator is in a conducting state.

[0053] As other optional implementations, the modulator can be other types such as an acousto-optic modulator, as long as it can perform super-pulse processing on the first laser.

[0054] Furthermore, if Figures 2 to 4 As shown, the ultra-pulse thulium-doped fiber laser treatment device in this embodiment also includes a liquid cooling component 50, and the thulium-doped fiber laser generating component 10, the auxiliary laser component 20 and the ultra-pulse component 40 are all installed on the liquid cooling component 50, that is, the thulium-doped fiber laser generating component 10, the auxiliary laser component 20 and the ultra-pulse component 40 are dissipated and cooled by the liquid cooling component 50.

[0055] In this embodiment, the liquid cooling assembly 50 includes a liquid cooling plate 51, in which a first liquid cooling cavity 511, a second liquid cooling cavity 512, a third liquid cooling cavity 513 and a liquid inlet channel 514 are formed; the liquid inlet channel 514 is used to input cooling liquid, the first liquid cooling cavity 511 is arranged corresponding to the position of the thulium-doped fiber laser generating assembly 10, the second liquid cooling cavity 512 is arranged corresponding to the position of the auxiliary laser assembly 20, and the third liquid cooling cavity 513 is arranged corresponding to the position of the super pulse assembly 40. The liquid inlet channel 514 is respectively connected to the first liquid cooling cavity 511, the second liquid cooling cavity 512 and the third liquid cooling cavity 513.

[0056] It should be noted that the liquid cooling assembly 50 also includes a liquid cooling pump (not shown) and a coolant cooling device (not shown). The liquid cooling pump and the coolant cooling device are structures commonly used by those skilled in the art and are not specifically elaborated in this embodiment. The first liquid cooling cavity 511, the second liquid cooling cavity 512 and the third liquid cooling cavity 513 are respectively provided with a reflux hole, the reflux hole is connected to the coolant cooling device, the coolant cooling device is connected to the liquid cooling pump, and the liquid cooling pump is connected to the liquid inlet channel 514. That is, the coolant can flow through the liquid cooling pump, the liquid inlet channel 514, the liquid cooling cavity, the reflux hole, the coolant cooling device and the liquid cooling pump in sequence to achieve circulating cooling of the coolant and circulation of cold capacity.

[0057] Furthermore, if Figure 2 and Figure 3 As shown, a diverter assembly 52 is installed at the outlet of the liquid inlet channel 514 , and the diverter assembly 52 is communicated with the first liquid cooling cavity 511 , the second liquid cooling cavity 512 and the third liquid cooling cavity 513 respectively.

[0058] Among them, such as Figure 2 As shown, when the modulator is in the first state, the first flow rate from the shunt component 52 to the first liquid-cooling cavity 511 is smaller than the second flow rate from the shunt component 52 to the second liquid-cooling cavity 512 and the third flow rate from the shunt component 52 to the third liquid-cooling cavity 513, respectively. At this time, the coolant is mainly used to cool the auxiliary laser assembly 20, and is pre-stored in the third liquid-cooling cavity 513 to prepare in advance for cooling the heat generated by the first laser when the super pulse assembly 40 is blocked within the first time and the heat of the super pulse assembly 40 itself.

[0059] like Figure 3 As shown, when the modulator is in the second state, the third flow rate from the shunt assembly 52 to the third liquid-cooling cavity 513 is less than the first flow rate from the shunt assembly 52 to the first liquid-cooling cavity 511 and the second flow rate from the shunt assembly 52 to the second liquid-cooling cavity 512, respectively. At this point, the heat of the ultrapulsed thulium-doped fiber laser therapy device is primarily concentrated in the thulium-doped fiber laser generating assembly 10 and the auxiliary laser assembly 20, which continuously generate laser light. Therefore, the coolant is primarily introduced into the first liquid-cooling cavity 511 and the second liquid-cooling cavity 512 via the shunt assembly 52. ​​Therefore, in this embodiment, the provision of the shunt assembly 52 enables the distribution of the coolant. While maintaining the power of the liquid cooling pump and the coolant cooling device, the coolant's cooling capacity is effectively utilized to provide specialized cooling for the ultrapulsed thulium-doped fiber laser therapy device, which has uneven heat accumulation. Compared to conventional uniform heat dissipation solutions, this solution offers the advantage of higher cooling efficiency, thereby improving the operational stability of the ultrapulsed thulium-doped fiber laser therapy device.

[0060] Furthermore, if Figure 4 As shown, the diverter assembly 52 includes a rotating device and a rotating base 523 installed on the rotating end of the rotating device; the rotating device is used to drive the rotating base 523 to rotate between a first position and a second position, the first position is the rotation angle of the rotating base 523 in the first state, and the second position is the rotation angle of the rotating base 523 in the second state. The rotating device can be a turntable structure driven by a stepping motor, a rotating cylinder, or an electromagnet, and there is no specific limitation, as long as it can drive the rotating base 523 to rotate; a first protrusion 521 and a second protrusion 522 set at an angle are convexly provided on the rotating base 523; an overflow hole 524 is respectively provided on the first protrusion 521 and the second protrusion 522.

[0061] like Figure 3As shown, when the modulator is in the first state, the first bump 521 is located at the outlet of the liquid inlet channel 514, and the second bump 522 is located at the entrance of the first liquid-cooling cavity 511; at this time, after the coolant passes through the flow hole 524 of the first bump 521, it mainly flows into the second liquid-cooling cavity 512 and the third liquid-cooling cavity 513 without bump obstruction, and a small amount of coolant flows into the first liquid-cooling cavity 511 through the flow hole 524 of the second bump 522.

[0062] like Figure 4 As shown, when the modulator is in the second state, the second bump 522 is located at the outlet of the liquid inlet channel 514, and the first bump 521 is located at the entrance of the third liquid-cooling cavity 513. At this time, after passing through the flow hole 524 of the second bump 522, the coolant mainly flows into the first liquid-cooling cavity 511 and the second liquid-cooling cavity 512, where there are no bumps blocking it. A small amount of coolant flows into the third liquid-cooling cavity 513 through the flow hole 524 of the first bump 521.

[0063] On the basis of the above embodiment, the auxiliary laser assembly 20 includes a carbon dioxide laser exciter, the first wavelength is 1900 nanometers, and the second wavelength is 10600 nanometers.

[0064] In summary, the ultra-pulsed thulium-doped fiber laser treatment device provided in this embodiment has the advantages of simple operation, low operator proficiency requirements, and high stability.

[0065] Example 2:

[0066] The irradiation method of the ultra-pulsed thulium-doped fiber laser treatment device provided in this embodiment is applied to the ultra-pulsed thulium-doped fiber laser treatment device in Example 1, and includes:

[0067] Step S200: The super pulse assembly 40 is placed in a first state, the first laser is blocked by the super pulse assembly 40, and the auxiliary laser assembly 20 is preheated with the second laser;

[0068] In step S400, the superpulse assembly 40 is placed in a second state, where the superpulse assembly 40 increases the peak power of the first laser beam, and cutting is performed by coupling the first and second laser beams. Specifically, the modulator of the superpulse assembly 40 switches between the first and second operating states to modulate the first laser beam, thereby increasing the peak power of the first laser beam. Finally, cutting is performed using the superpulsed first and second laser beams.

[0069] Furthermore, before step S200, setting the super pulse assembly 40 to the first state, the process further includes:

[0070] Step S100, starting the auxiliary laser assembly 20;

[0071] Before step S400, which sets the super pulse assembly 40 to the second state, the process further includes:

[0072] Step S300: start the thulium-doped fiber laser generating assembly 10.

[0073] It is understandable that the thulium-doped fiber laser generating assembly 10 is started after the auxiliary laser assembly 20 is preheated for a certain period of time, which can reduce the overall power consumption of the ultra-pulse thulium-doped fiber laser treatment device.

[0074] To facilitate understanding by those skilled in the art, the irradiation method of the ultra-pulsed thulium-doped fiber laser treatment device is further described. The irradiation method includes:

[0075] Step S010: Start the liquid cooling assembly 50 and place the rotating base 523 in the first position;

[0076] Step S100, starting the auxiliary laser assembly 20;

[0077] Step S200: The super pulse assembly 40 is placed in a first state, the first laser is blocked by the super pulse assembly 40, and the auxiliary laser assembly 20 is preheated with the second laser;

[0078] Step S300: during the preheating process, start the thulium-doped fiber laser generating assembly 10;

[0079] Step S400: After receiving the surgeon's instruction, the rotating base 523 is placed in the second position, the super pulse assembly 40 is placed in the second state, the super pulse assembly 40 is used to increase the peak power of the first laser, and cutting is performed by coupling the first laser and the second laser.

[0080] Exemplarily, the liquid cooling assembly 50 is first activated, and the rotating base 523 is positioned in the first position, so that the coolant primarily cools the auxiliary laser assembly 20, and coolant is pre-stored in the third liquid cooling chamber 513. Subsequently, the target is preheated by the auxiliary laser assembly 20 and the optical coupling assembly 30. At this time, the heat of the auxiliary laser assembly 20 can be fully removed by the coolant in the second liquid cooling chamber 512.

[0081] During the preheating process, more precisely, before the preheating is about to turn into cutting, the thulium-doped fiber laser generating assembly 10 can be started so that the first laser generated by the thulium-doped fiber laser generating assembly 10 is blocked by the super pulse assembly 40 before reaching the preset target power. At this time, the coolant pre-stored in the third liquid cooling cavity 513 can fully cool the super pulse assembly 40. It can be understood that the coolant pre-stored in the third liquid cooling cavity 513 is mainly used to cool down the heat generated by the first laser in the super pulse assembly 40 during the preheating stage.

[0082] Then, the operator waits for the switching instruction from the surgeon. When the operator's switching instruction is received, the super pulse component 40 switches to the second state. The first laser is directly modulated by the modulator and emitted with a higher peak power, which has the advantage of rapid response. At the same time, the rotating base 523 is located in the second position, so that the coolant mainly cools the thulium-doped fiber laser generating component 10 and the auxiliary laser component 20. It can be understood that when only the auxiliary laser component 20 is started (the temperature of the auxiliary laser component 20 is the highest), the coolant can be used to cool and dissipate heat from the auxiliary laser component 20 through the rotating base 523 located in the first position. When the auxiliary laser component 20 and the thulium-doped fiber laser generating component 10 are working, and the super pulse component 40 is in the first state (the temperature of the auxiliary laser component 20 and the super pulse component 40 is high because the heat of the first laser is accumulated in the super pulse component 40), the auxiliary laser component 20 continues to be cooled and dissipated by the coolant, and the heat is pre-stored in the third liquid cooling cavity 51. 3 cools the superpulse assembly 40, while a small amount of coolant flows into the first liquid-cooling cavity 511 in advance through the flow hole 524 to cool the newly started thulium-doped fiber laser generating assembly 10. When the auxiliary laser assembly 20 and the thulium-doped fiber laser generating assembly 10 are operating (the temperature of the auxiliary laser assembly 20 and the temperature of the thulium-doped fiber laser generating assembly 10 are higher because the first laser is emitted, and the temperature of the superpulse assembly 40 is relatively low), and the superpulse assembly 40 is in the second state, the coolant is mainly used to cool and dissipate heat for the auxiliary laser assembly 20 and the thulium-doped fiber laser generating assembly 10. It can be seen that the irradiation method of this embodiment meets the high heat dissipation requirements caused by uneven heat distribution during the irradiation process through the reasonable distribution of coolant. At the same time, this solution is compact, has high coolant utilization efficiency, high buffering performance, and strong stability.

[0083] In summary, the irradiation method of the ultra-pulsed thulium-doped fiber laser treatment device provided in this embodiment has the advantages of simple operation, low operator proficiency requirements, high stability, compact size, high cooling liquid utilization efficiency, and high buffering performance.

[0084] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ultra-pulsed thulium-doped fiber laser treatment device, characterized in that: include: A thulium-doped fiber laser generating assembly (10), wherein the thulium-doped fiber laser generating assembly (10) is used to generate a first laser of a first wavelength; An auxiliary laser assembly (20), the auxiliary laser assembly (20) being used to produce a second laser of a second wavelength; A super pulse assembly (40), the super pulse assembly (40) comprising a modulator configured with a first state and a second state; An optical path coupling component (30), the optical path coupling component (30) being used to couple the first laser and the second laser, and input the coupled laser into the super pulse component (40); A liquid cooling assembly (50), wherein the thulium-doped fiber laser generating assembly (10), the auxiliary laser assembly (20), and the super pulse assembly (40) are all mounted on the liquid cooling assembly (50); The second wavelength is greater than the first wavelength, and when the modulator is in the first state, the modulator blocks the first laser, and when the modulator is in the second state, the modulator is used to increase the peak power of the first laser; The liquid cooling assembly (50) comprises a liquid cooling plate (51), wherein a first liquid cooling cavity (511), a second liquid cooling cavity (512), a third liquid cooling cavity (513) and a liquid inlet channel (514) are formed in the liquid cooling plate (51); The liquid inlet channel (514) is used to input cooling liquid, the first liquid cooling cavity (511) is arranged corresponding to the position of the thulium-doped fiber laser generating component (10), the second liquid cooling cavity (512) is arranged corresponding to the position of the auxiliary laser component (20), and the third liquid cooling cavity (513) is arranged corresponding to the position of the super pulse component (40), and the liquid inlet channel (514) is respectively connected to the first liquid cooling cavity (511), the second liquid cooling cavity (512) and the third liquid cooling cavity (513); A diversion component (52) is installed at the outlet of the liquid inlet channel (514), and the diversion component (52) is respectively connected to the first liquid cooling cavity (511), the second liquid cooling cavity (512), and the third liquid cooling cavity (513); The flow diversion assembly (52) comprises a rotating device and a rotating base (523) mounted on a rotating end of the rotating device, wherein a first protrusion (521) and a second protrusion (522) arranged at an angle are provided on the rotating base (523); the first protrusion (521) and the second protrusion (522) are respectively provided with an overflow hole (524); When the modulator is in the first state, the first protrusion (521) is located at the outlet of the liquid inlet channel (514), and the second protrusion (522) is located at the inlet of the first liquid cooling cavity (511); When the modulator is in the second state, the second protrusion (522) is located at the outlet of the liquid inlet channel (514), and the first protrusion (521) is located at the inlet of the third liquid cooling cavity (513).

2. The ultra-pulsed thulium-doped fiber laser treatment device according to claim 1, characterized in that: The modulator is an electro-optical modulator; When the electro-optical modulator is in the first state, the voltage of the electro-optical modulator is a blocking voltage value to block the first laser; When the electro-optic modulator is in the second state, the voltage of the electro-optic modulator switches between the first working state and the second working state at a preset frequency to modulate the first laser.

3. The ultra-pulsed thulium-doped fiber laser treatment device according to claim 2, characterized in that: The electro-optic modulator includes a lithium niobate crystal or a gallium arsenide crystal.

4. The ultra-pulsed thulium-doped fiber laser treatment device according to claim 1, characterized in that: When the modulator is in the first state, a first flow rate from the shunt component (52) to the first liquid-cooling cavity (511) is smaller than a second flow rate from the shunt component (52) to the second liquid-cooling cavity (512) and a third flow rate from the shunt component (52) to the third liquid-cooling cavity (513). When the modulator is in the second state, the third flow rate from the shunt component (52) to the third liquid-cooling cavity (513) is respectively smaller than the first flow rate from the shunt component (52) to the first liquid-cooling cavity (511) and the second flow rate from the shunt component (52) to the second liquid-cooling cavity (512).

5. The ultra-pulsed thulium-doped fiber laser treatment device according to claim 1, characterized in that: The auxiliary laser component (20) comprises a carbon dioxide laser exciter, the first wavelength is 1900 nanometers, and the second wavelength is 10600 nanometers.

6. An irradiation method of an ultra-pulsed thulium-doped fiber laser treatment device, characterized in that: The ultra-pulsed thulium-doped fiber laser treatment device according to any one of claims 1 to 5 comprises: The super pulse assembly is placed in a first state, the first laser is blocked by the super pulse assembly, and preheating is performed with the second laser by the auxiliary laser assembly; The super pulse component is placed in a second state, the peak power of the first laser is increased by the super pulse component, and cutting is performed by coupling the first laser and the second laser.

7. The irradiation method of the ultra-pulsed thulium-doped fiber laser treatment device according to claim 6, characterized in that: Before placing the super pulse component in the first state, the method further includes: Start the auxiliary laser assembly; Before placing the super pulse component in the second state, the method further includes: Start the thulium-doped fiber laser generator assembly.

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