Dual-wavelength laser therapy apparatus

Abstract

The invention provides a dual-wavelength laser therapy apparatus, which comprises a 980-nanometer and 532-nanometer laser coupler, a 980-nanometer laser, a 532-nanometer laser, a 980-nanometer laser optical fiber and a 532-nanometer laser optical fiber, and is characterized in that the 980-nanometer laser is connected with the 980-nanometer and 532-nanometer laser coupler through the 980-nanometer laser optical fiber, and the 532-nanometer laser is connected with the 980-nanometer and 532-nanometer laser coupler through the 532-nanometer laser optical fiber. And the 532 nanometer laser device is connected with the 980 nanometer and 532 nanometer laser couplers through the 532 nanometer laser device optical fiber. The laser therapy apparatus provided by the technical scheme of the invention replaces a laser therapy apparatus comprising a solid laser in the prior art, adopts the fiber laser, does not have the problem of instability of the solid laser, and is faster to start and low in power consumption.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to a dual-wavelength laser therapeutic machine. Background Art

[0002] In the prior art, green laser therapy machines use a single-wavelength laser of 532nm and are commonly used laser therapy machines in surgery in recent years. They are mainly used for prostate hyperplasia and treat the disease by vaporization and cutting.

[0003] The single-wavelength green laser therapy machine in the prior art uses a solid-state laser, such as Figure 1 As shown, there are unstable technical problems, and it contains a bulky water cooling device, a complex electrical structure, a bulky volume, a high input power, and a large power consumption. In addition, the single-wavelength green laser therapy machine only treats diseases by vaporization cutting, but needs to rely on other equipment for hemostasis, which causes a certain degree of inconvenience during surgery. That is, the single-wavelength green laser therapy machine in the prior art has the following technical problems:

[0004] 1. There are many lenses inside the laser. When there is instability, the light will be disordered in the lenses;

[0005] 2. The stability of the laser needs to be maintained by the stability of the Bar bar in the pump cavity. The Bar bar needs to be heated by positive power to maintain the stability of the laser. In addition, the stability of the Bar bar requires the operation accuracy of the chiller to reach plus or minus 0.3. When the operation accuracy of the chiller reaches plus or minus 0.3, the valve of the cooling pump will often open and make a clicking noise.

[0006] 3. The fan of the chiller also makes noise when it is running. The hospital stipulates that the noise cannot exceed 70 decibels, and the chiller needs regular maintenance and water changes;

[0007] 4. Solid-state lasers have the disadvantages of slow startup and high power consumption. The power cannot be too low during standby mode, otherwise the bar will be unstable.

[0008] Therefore, a new laser therapy machine needs to be proposed to solve the above technical problems. Summary of the invention

[0009] The present invention provides a dual-wavelength laser therapeutic machine, which at least solves the technical problems of slow startup and high power consumption caused by the single-wavelength green laser therapeutic machine in the prior art.

[0010] The present invention provides a dual-wavelength laser therapeutic machine, which comprises a 980-nanometer and 532-nanometer laser coupler, a 980-nanometer laser, a 532-nanometer laser, a 980-nanometer laser optical fiber and a 532-nanometer laser optical fiber. The 980-nanometer laser is connected to the 980-nanometer and 532-nanometer laser coupler via the 980-nanometer laser optical fiber, and the 532-nanometer laser is connected to the 980-nanometer and 532-nanometer laser coupler via the 532-nanometer laser optical fiber.

[0011] Optionally, the 980-nanometer laser includes a first laser output port, the 980-nanometer and 532-nanometer laser coupler includes a first laser input port and a second laser input port, one end of the 980-nanometer laser optical fiber is connected to the first laser output port, and the other end is connected to the first laser input port.

[0012] Optionally, the 532-nanometer laser includes a second laser output port, one end of the 532-nanometer laser optical fiber is connected to the second laser output port, and the other end is connected to the second laser input port of the 980-nanometer and 532-nanometer laser coupler.

[0013] Optionally, the 532-nanometer laser further includes a heat dissipation duct and a heat dissipation fan, and the heat dissipation duct and the heat dissipation fan are respectively located at two ends of the 532-nanometer laser.

[0014] Optionally, the 980-nanometer laser contains a first laser driving circuit, and the 532-nanometer laser contains a second laser driving circuit, and the first laser driving circuit and the second laser driving circuit are respectively controlled by a mainboard of the dual-wavelength laser therapy machine.

[0015] Optionally, the dual-wavelength laser therapy machine contains a beam combiner, the 532-nm laser contains a pump source, the optical fiber output from the pump source is connected to one end of the beam combiner, and the other end of the beam combiner is connected to an active optical fiber.

[0016] Optionally, the number of the above-mentioned pump sources is greater than or equal to two, and the light emitted by each of the above-mentioned pump sources passes through the above-mentioned active optical fiber and is then converted into a 532-nanometer laser through a frequency doubling crystal.

[0017] Optionally, the wind generated by the rotation of the heat dissipation fan cools the 532 nm laser and is discharged from the heat dissipation air duct.

[0018] Optionally, the 980-nanometer laser and the 532-nanometer laser are fiber-coupled semiconductor lasers.

[0019] The technical solution of the present invention designs a dual-wavelength green laser therapy machine of 532nm (nanometer) and 980nm (nanometer), and installs the 980nm laser and the 532nm laser into the laser therapy machine through a 980nm and 532nm laser coupler, forming a brand-new laser therapy machine of the technical solution of the present invention.

[0020] The 980nm laser has a better hemostatic function. The brand-new laser therapy machine of the technical solution of the present invention replaces the laser therapy machine containing solid laser in the prior art. It adopts fiber laser, does not have the instability problem of solid laser, starts faster and consumes less power.

[0021] In addition, the overall structure of the laser therapy machine provided by the technical solution of the present invention has changed. It adopts a 980nm and 532nm dual-wavelength laser coupler, eliminates the bulky water cooling device in the green laser therapy machine in the prior art, adopts internal air cooling of the laser, and integrates the laser driver into the laser. The electrical structure becomes simpler, the input power is lower, and it is more energy-saving. Therefore, the laser therapy machine provided by the technical solution of the present invention is not only smaller in size and lighter in weight than the green laser therapy machine in the prior art, but also avoids a series of problems caused by the water cooling device, and can realize vaporization cutting and hemostasis in one. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, in which:

[0023] Figure 1 A schematic diagram of an optional green laser therapy machine frame structure provided by the prior art of the present invention;

[0024] Figure 2 A working principle diagram of an optional yttrium aluminum garnet crystal / lithium triborate crystal (Nd:YAG / LBO) green laser therapy machine provided in an embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the structure of an optional dual-wavelength green laser therapy machine provided in an embodiment of the present invention;

[0026] Figure 3 -1 is a schematic diagram of a connection structure of an optional 980nm laser and a 532nm laser and a dual-wavelength coupler provided in an embodiment of the present invention;

[0027] Figure 3 -2 is a schematic diagram of the two-end structure of an optional 532nm laser provided in an embodiment of the present invention.

[0028] Reference numerals:

[0029] Laser layer 1, electrical layer 2, cooling layer (chiller) 3, casters 4; 980nm+532nm laser coupler 10, 980nm laser 11, 532nm laser 12, 980nm laser fiber 13, 532nm laser fiber 14, first laser output port 111, second laser output port 121, first laser input port 101, second laser input port 102, heat dissipation duct 16, heat dissipation fan 17.

[0030] The following specific implementation is used to further illustrate but not limit the present invention. The following example is only a preferred implementation of the present invention. DETAILED DESCRIPTION

[0031] 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 implement the present invention, and are not intended to limit the scope of the present invention in any way. On the contrary, these embodiments are provided to make the disclosure of this application more thorough and complete, and to fully convey the scope of the disclosure of this application to those skilled in the art.

[0032] The implementation of the technical solution of the present invention is as follows: Figures 2 to 3 -2, Figure 3 An optional dual-wavelength green laser therapy machine structure is provided, the dual-wavelength laser therapy machine includes a 980nm and 532nm laser coupler 10, a 980nm laser 11, a 532nm laser 12, a 980nm laser fiber 13 and a 532nm laser fiber 14, the 980nm laser 11 is connected to the 980nm and 532nm laser coupler 10 via the 980nm laser fiber 13, the 532nm laser 12 is connected to the 980nm and 532nm laser coupler 10 via the 532nm laser fiber 14.

[0033] Furthermore, the above-mentioned 980nm laser 11 includes a first laser output port 111, the above-mentioned 980nm and 532nm laser coupler 10 includes a first laser input port 101 and a second laser input port 102, one end of the above-mentioned 980nm laser optical fiber 13 is connected to the above-mentioned first laser output port 111, and the other end is connected to the above-mentioned first laser input port 101.

[0034] Furthermore, the 532nm laser 12 includes a second laser output port 121 , one end of the 532nm laser fiber 14 is connected to the second laser output port 121 , and the other end is connected to the second laser input port 102 of the 980nm and 532nm laser coupler 10 .

[0035] Furthermore, the 532 nm laser 12 further includes a heat dissipation duct 16 and a heat dissipation fan 17 , and the heat dissipation duct 16 and the heat dissipation fan 17 are respectively located at two ends of the 532 nm laser 12 .

[0036] Furthermore, the 980nm laser 11 includes a first laser driving circuit, and the 532nm laser 12 includes a second laser driving circuit. The first laser driving circuit and the second laser driving circuit are respectively controlled by a mainboard of the dual-wavelength laser therapy machine.

[0037] Furthermore, the dual-wavelength laser therapy machine comprises a beam combiner, the 532nm laser 12 comprises a pump source, the optical fiber outputted by the pump source is connected to one end of the beam combiner, and the other end of the beam combiner is connected to an active optical fiber.

[0038] Furthermore, the number of the above-mentioned pump sources is greater than or equal to two, and the light emitted by each of the above-mentioned pump sources passes through the above-mentioned active optical fiber and is then converted into a 532nm laser through a frequency doubling crystal.

[0039] Furthermore, the wind generated by the rotation of the cooling fan 17 cools the 532 nm laser 12 and is discharged from the cooling air duct 16 .

[0040] Furthermore, the 980nm laser 11 and the 532nm laser 12 are fiber-coupled semiconductor lasers.

[0041] The working principle of the above dual-wavelength laser therapy machine:

[0042] The main structure of the above-mentioned dual-wavelength laser therapy machine is a fiber laser + frequency doubling crystal. Multiple pump sources are used in the laser. The pump source output fiber is connected to one end of the beam combiner, and the other end of the beam combiner is connected to the active fiber. The light emitted by multiple pump sources passes through the active fiber and is converted into 1064nm, and then converted into 532nm green laser through the frequency doubling crystal.

[0043] The above dual-wavelength laser therapy machine uses a fiber-coupled semiconductor laser, which generates little heat and uses air cooling as the heat dissipation solution. Figure 1 The laser therapy machine of the prior art shown in the figure, the dual-wavelength laser therapy machine provided by the technical solution of the present invention eliminates the bulky chiller 3. The first layer of the laser therapy machine of the prior art is a semiconductor laser 1, that is, a 532nm solid laser, and the second layer of the laser therapy machine of the prior art is a circuit board 2, which corresponds in function to the following Figure 3 The circuit board layer in the middle area of ​​the 980nm and 532nm laser coupler 10 and the 532nm laser 12 of the dual-wavelength laser therapy machine shown.

[0044] The laser frequency of the dual-wavelength laser therapy machine is controlled by a pulse power supply.

[0045] The functional structure diagram of the dual-wavelength laser therapy machine is as follows: Figure 2 As shown, Figure 2 An optional working principle diagram of a yttrium aluminum garnet crystal / lithium triborate crystal (Nd:YAG / LBO) green laser therapy machine provided in an embodiment of the present invention. The dual-wavelength laser therapy machine has a total of five control systems, namely, a high-efficiency green laser converter, a Nd:YAG laser, a laser control subsystem, a cooling subsystem, and a safety and electronic control subsystem. With the coordination of the five systems, the dual-wavelength laser therapy machine outputs a laser light source, which is output to the treatment end via a fiber optic transmitter.

[0046] Figure 3 is a schematic diagram of the structural framework of the above-mentioned dual-wavelength laser therapy machine. Figure 3 -1 is the connection structure diagram of 980nm laser and 532nm laser with dual wavelength coupler. Figure 3 -2 is a schematic diagram of the 532nm laser structure.

[0047] Compared with the laser therapy machine in the prior art, the electrical structure of the dual-wavelength laser therapy machine provided by the embodiment of the present invention does not have a laser drive circuit, which is integrated into the laser, and the structure becomes simpler. The input power of the dual-wavelength laser therapy machine is reduced to 1 / 3 of the original, which is more power-saving, more integrated, more stable, can reduce the failure rate, and is lighter.

[0048] The dual-wavelength laser therapy machine adopts a fiber-coupled semiconductor laser, and replaces the chiller layer in the prior art with a 532nm laser. The structure of the 532nm laser is as follows: Figure 3 As shown in FIG. 2 , there are a cooling fan 17 and a cooling air duct 16 on the laser, which generates little heat and uses air cooling as a cooling solution, which greatly facilitates the operation.

[0049] The first layer of the laser therapy machine in the prior art is a semiconductor laser that outputs 532nm laser and uses a single-wavelength 532nm coupler, while the above-mentioned dual-wavelength laser therapy machine uses a 980nm fiber laser that can output 980 and 532nma lasers and a dual-wavelength coupler.

[0050] The top layer is replaced by a 980nm laser and a dual-wavelength coupler instead of a 532nm laser. The connection structure of the 980nm laser, the 532nm laser and the dual-wavelength coupler is shown in the figure. Figure 3-1, in addition, the laser therapy machine in the prior art adopts solid lasers, while the 532nm laser and 980nm laser of the above-mentioned dual-wavelength laser therapy machine provided in the embodiment of the present invention are both fiber lasers, which start faster, consume less power, and the power can be reduced to the minimum before restarting, and there is no problem of instability of solid lasers.

[0051] Both the 532nm laser and the 980nm laser are connected to the dual-wavelength coupler through optical fiber at one end and to electrical-related devices and the touch panel at the other end. After the power is turned on, the dual-wavelength laser therapy machine is started and the touch screen is turned on. After the equipment is stabilized by adjusting the parameters, the laser-related parameters can be adjusted and the laser is run. The laser is transmitted in the optical fiber through the coupler and reaches the lesion tissue through the optical fiber. It is adjusted according to the doctor's needs to achieve the purpose of vaporization cutting and hemostasis, which greatly facilitates prostate hyperplasia surgery and has far-reaching research value and significance for research in the field of medical devices.

[0052] The dual-wavelength laser therapy machine provided by the embodiment of the present invention has the following technical advantages:

[0053] 1. There are not many lenses inside the laser to avoid the phenomenon of laser disorder in the lenses.

[0054] 2. The stability of the fiber laser does not require bars to maintain, which avoids the instability of the bars and the accuracy of the chiller caused by solid lasers, and also avoids the frequent opening of the valve of the refrigeration pump and the resulting noise.

[0055] 3. The air cooling inside the laser replaces the chiller cooling, which has low power consumption and low noise.

[0056] 4. Fiber lasers start quickly, consume less power, and the power can be reduced to the minimum before restarting. There is no instability problem of solid lasers.

[0057] 5. The bulky water-cooling device is removed and the laser is cooled internally by air, which makes the laser smaller and lighter, and can realize vaporization cutting and hemostasis in one, bringing great convenience to the operation.

[0058] It should be noted that although several units / modules or subunits / modules of the device are mentioned in the above detailed description, this division is merely exemplary and not mandatory. In fact, according to an embodiment of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided into multiple units / modules to be embodied.

[0059] Although the spirit and principle 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 disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined to benefit, and such division is only for the convenience of expression. The present invention is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims.

Claims

1. A dual-wavelength laser therapy machine, It is characterized in that The dual-wavelength laser therapy machine comprises a 980-nanometer (nm) and 532-nanometer (nm) laser coupler (10), a 980-nanometer (nm) laser (11), a 532-nanometer (nm) laser (12), a 980-nanometer (nm) laser optical fiber (13) and a 532-nanometer (nm) laser optical fiber (14); the 980-nanometer (nm) laser (11) is connected to the 980-nanometer (nm) and 532-nanometer (nm) laser coupler (10) via the 980-nanometer (nm) laser optical fiber (13); and the 532-nanometer (nm) laser (12) is connected to the 980-nanometer (nm) and 532-nanometer (nm) laser coupler (10) via the 532-nanometer (nm) laser optical fiber (14).

2. The dual-wavelength laser therapy machine according to claim 1, It is characterized in that The 980 nanometer (nm) laser (11) comprises a first laser output port (111), the 980 nanometer (nm) and 532 nanometer (nm) laser coupler (10) comprises a first laser input port (101) and a second laser input port (102), one end of the 980 nanometer (nm) laser optical fiber (13) is connected to the first laser output port (111), and the other end is connected to the first laser input port (101).

3. The dual-wavelength laser therapy machine according to claim 2, It is characterized in that The 532 nanometer (nm) laser (12) comprises a second laser output port (121); one end of the 532 nanometer (nm) laser optical fiber (14) is connected to the second laser output port (121), and the other end is connected to the second laser input port (102) of the 980 nanometer (nm) and 532 nanometer (nm) laser coupler (10).

4. The dual-wavelength laser therapy machine according to claim 1, It is characterized in that The 532 nanometer (nm) laser (12) further comprises a heat dissipation duct (16) and a heat dissipation fan (17), wherein the heat dissipation duct (16) and the heat dissipation fan (17) are respectively located at two ends of the 532 nanometer (nm) laser (12).

5. The dual-wavelength laser therapy machine according to claim 1, It is characterized in that The 980 nm laser (11) contains a first laser driving circuit, and the 532 nm laser (12) contains a second laser driving circuit. The first laser driving circuit and the second laser driving circuit are respectively controlled by a mainboard of the dual-wavelength laser therapy machine.

6. The dual-wavelength laser therapy machine according to claim 1, It is characterized in that The dual-wavelength laser therapy machine comprises a beam combiner, the 532 nanometer (nm) laser (12) comprises a pump source, the optical fiber output by the pump source is connected to one end of the beam combiner, and the other end of the beam combiner is connected to an active optical fiber.

7. The dual-wavelength laser therapy machine according to claim 6, It is characterized in that The number of the pump sources is greater than or equal to two, and the light emitted by each pump source passes through the active optical fiber and is then converted into 532 nanometer (nm) laser light through a frequency doubling crystal.

8. The dual-wavelength laser therapy machine according to claim 4, It is characterized in that The wind generated by the rotation of the heat dissipation fan (17) cools the 532 nanometer (nm) laser (12) and is discharged from the heat dissipation air duct (16).

9. The dual-wavelength laser therapy machine according to any one of claims 1 to 8, It is characterized in that The 980 nanometer (nm) laser (11) and the 532 nanometer (nm) laser (12) are optical fiber coupled semiconductor lasers.

Images