CN220122327U - Laser module and medical device - Google Patents

Abstract

The utility model provides a laser module and a medical device, which relate to the technical field of optics and comprise a fixed seat and a plurality of optical heads, wherein a light source and a fast axis compression unit are sequentially arranged in the fixed seat along a light path, a shaping unit is arranged in the optical heads, and a beam emitted by the light source is shaped by the shaping unit and emitted to form a uniform light spot after being compressed in the fast axis direction by the fast axis compression unit, wherein the sizes of the uniform light spots emitted by any two optical heads are different. Can make fixing base collocation a plurality of optical heads in the random use according to current demand, and when the demand changes, alright be with the optical head of fixing base collocation at present tearing down, replace another optical head that can satisfy new demand, that is, every optical head can all dismantle with the fixing base and be connected, from this, satisfy different user demands and scene, and because at the in-process of changing different optical heads, fixed module uses unchanged, consequently, can effectually reduce user's use cost.

Description

A laser module and medical device

Technical field

This application relates to the field of optical technology, specifically, to a laser module and a medical device.

Background technique

High-power semiconductor lasers have the advantages of small size, light weight, high efficiency, and long life. They have been widely used in industrial processing, cladding, pumping, medical and other fields. They have become a fast-developing, multi-awarded, widely penetrated, and widely used device in the new century. One of the core devices with a wide range of products.

In the field of medical beauty, the main applications of laser are freckle removal, hair removal, etc. However, the spot size output by existing semiconductor laser products is fixed, and the spot cannot be flexibly switched according to needs during use, and the uniformity is also poor, which greatly limits the application of semiconductor laser equipment and makes it difficult to meet the needs of many users. Scenario usage requirements.

Utility model content

The purpose of this application is to provide a laser module and a medical device to address the above deficiencies in the prior art.

In order to achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:

In one aspect of the embodiment of the present application, a laser module is provided, including a fixed base and a plurality of optical heads. The plurality of optical heads are used to replace the light exit side of the fixed base. A light source and a light source are sequentially arranged along the optical path in the fixed base. The fast axis compression unit is provided with a shaping unit in the optical head. The light beam emitted by the light source is compressed in the fast axis direction by the fast axis compression unit and then shaped by the shaping unit and emitted to form a uniform spot. Among them, the light beam emitted by any two optical heads is uniform. The sizes of the light spots vary.

Optionally, the fixed base includes a light source base and a cooling base that are fixed to each other. The light source and the fast axis compression unit are both arranged in the light source base. The optical head is detachably arranged in the cooling base. It is useful to set it in the cooling base. The first cooling path is used to dissipate heat from the light source base and the optical head.

Optionally, the first cooling passage includes a U-shaped passage and an input passage and an output passage respectively connected to both ends of the U-shaped passage. The cooling base has a connection part for connecting the optical head, and the U-shaped passage is distributed in the connection part to at least Optical head heat dissipation.

Optionally, a branch path connected in parallel with the U-shaped path is connected between the input path and the output path, and the area of the circulation cross-section of the U-shaped path is larger than the area of the circulation cross-section of the branch path.

Optionally, a second cooling channel is also provided in the light source base, and the input port and the output port of the second cooling channel are connected to the input channel at intervals along the flow direction of the input channel.

Optionally, the laser module also includes a semiconductor refrigerator. The optical head is connected to the cooling base through the semiconductor refrigerator. The hot surface of the semiconductor refrigerator is attached to the cooling base. The cold surface of the semiconductor refrigerator is used to dissipate heat from the optical head. .

Optionally, a first groove is provided on the optical head, and a first magnetic suction part is embedded in the first groove. The fixing base further includes a magnetic suction base provided on the cooling base, and is provided on the magnetic suction base. There is a second groove, and a second magnetic attraction part for fitting with the first magnetic attraction part is embedded in the second groove.

Optionally, a plurality of probes are provided on the magnetic base, and contacts for contacting some of the probes are provided on the optical head. The contacts on any two optical heads contact different probes.

Optionally, the fixing base and the optical head are respectively provided with positioning pins and positioning holes that are mated with each other.

Optionally, the shaping unit includes a light guide element, and a limit step and a pressure frame are provided in the optical head. The pressure frame is used to clamp and fix the light guide element to the optical head in conjunction with the limit step;

Or, the shaping unit includes a plurality of first optical lenses arranged sequentially along the optical path, and a limiting step and a pressing frame are provided in the optical head. The pressing frame is used to clamp and fix the plurality of first optical lenses to the optical head in conjunction with the limiting step. , a spacer ring is also provided between adjacent first optical lenses.

Optionally, when the shaping unit includes a light guide element, the light guide element is an optical waveguide, and the shaping unit also includes a second optical lens, and the optical waveguide is installed in the optical head and is located on the light exit side of the second optical lens; The light beams emitted from the two optical lenses can pass through the optical waveguide and then be emitted.

Optionally, when the shaping unit includes a light guide element, the light guide element is a light guide column, and the shaping unit also includes a second optical lens, and the light guide column is installed in the optical head and is located on the light exit side of the second optical lens; from the first The light beams emitted from the two optical lenses can be emitted after passing through the light guide column.

Optionally, when the shaping unit includes a light guide element, the light guide element is a reflective cavity, and the reflective cavity is installed in the optical head. The light beam emitted from the fixed base can be reflected by the reflective cavity and then emitted.

Optionally, the light outlet of the optical head is also provided with a protective window located on the light outlet side of the shaping unit.

Another aspect of the embodiment of the present application provides a medical device, including any of the above laser modules.

The beneficial effects of this application include:

This application provides a laser module and medical device, including a fixed base and multiple optical heads. The multiple optical heads are used to replace the light exit side of the fixed base. A light source and a fast axis are sequentially arranged along the optical path in the fixed base. The compression unit is provided with a shaping unit in the optical head. The light beam emitted by the light source is compressed in the fast axis direction by the fast axis compression unit and then shaped by the shaping unit and emitted to form a uniform light spot. Among them, the uniform light spot emitted by any two optical heads is Sizes vary. The mount can be used with any one of multiple optical heads according to current needs. When the needs change, the optical head currently paired with the mount can be removed and replaced with another optical head that can meet the new needs. head, that is, each optical head can be detachably connected to the fixed base, thereby meeting different usage needs and scenarios, and since the fixed module remains unchanged during the replacement of different optical heads, it can effectively Reduce user costs.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a laser module provided by an embodiment of the present application;

Figure 2 is a side view of a fixed module provided by an embodiment of the present application;

Figure 3 is an exploded view of a fixed module provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of a cooling base and a cooling passage provided by an embodiment of the present application;

Figure 5 is a top view of a fixed module provided by an embodiment of the present application;

Figure 6 is a schematic structural diagram of an optical head provided by an embodiment of the present application;

Figure 7 is an exploded view of an optical head provided by an embodiment of the present application;

Figure 8 is one of the structural schematic diagrams of another optical head provided by an embodiment of the present application;

Figure 9 is a second structural schematic diagram of another optical head provided by an embodiment of the present application;

Figure 10 is a cross-sectional view of another optical head provided by an embodiment of the present application;

Figure 11 is an exploded view of another optical head provided by an embodiment of the present application;

Figure 12 is one of the structural schematic diagrams of yet another optical head provided by an embodiment of the present application;

Figure 13 is a second structural schematic diagram of another optical head provided by an embodiment of the present application;

Figure 14 is a cross-sectional view of yet another optical head provided by an embodiment of the present application;

Figure 15 is an exploded view of yet another optical head provided by an embodiment of the present application;

Figure 16 is a cross-sectional view of yet another optical head provided by an embodiment of the present application.

Icon: 100-fixed module; 110-light source base; 111-window; 120-cooling base; 121-connection; 122-input channel; 123-U-shaped channel; 124-output channel; 125-branch; 126 -Input port; 127-Output port; 128-Base; 130-Semiconductor refrigerator; 140-Magnetic seat; 141-Second magnetic part; 142-Positioning hole; 150-Probe; 161-Screw; 162- Water head; 500-optical head; 501-installation cavity; 502-first groove; 503-positioning pin; 510-protection window; 520-first magnetic part; 530-pressure frame; 540-contact; 550- Spacer ring; 560-light guide column; 561-elastic ring; 570-reflective cavity; 600-shaping unit; 610-first lens; 620-optical waveguide; 621-waveguide base; 630-second lens; 640-third lens ; 650-Fourth lens; 660-Fifth lens; 670-Sixth lens.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the application provided in the appended drawings is not intended to limit the scope of the claimed application, but rather to represent selected embodiments of the application. It should be noted that, as long as there is no conflict, various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the protection scope of the present application.

It should be noted that similar reference numerals and letters represent similar items in the following figures, therefore, once an item is defined in one figure, it does not need further definition and explanation in subsequent figures.

In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship where the product of this application is commonly placed when used. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply. The devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions and shall not be understood as indicating or implying relative importance.

In addition, the terms "horizontal", "vertical", etc. do not mean that the component is required to be absolutely horizontal or suspended, but may be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical". It does not mean that the structure must be completely horizontal, but can be slightly tilted.

In the description of this application, it should also be noted that, unless otherwise clearly stated and limited, the terms "setting", "installation", "connecting" and "connecting" should be understood in a broad sense. For example, it can be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.

In one aspect of the embodiment of the present application, a laser module is provided. As shown in FIG. 1 , it includes a fixed module 100 and a plurality of optical heads 500 . The fixed module 100 includes a fixed base and a light source and fastener disposed in the fixed base. Axial compression unit, and the light source and fast axis compression unit are arranged sequentially along the optical path, so that the light beam emitted from the light source can be compressed in the fast axis direction by the fast axis compression unit to weaken the difference between the fast axis divergence angle and the slow axis divergence angle of the beam , thereby providing a higher quality beam, which is conducive to homogenizing the light intensity.

Multiple optical heads 500 can be alternatively arranged on the light exit side of the fixed base. The optical head 500 is provided with a shaping unit 600 located on the light exit side of the fast axis compression unit. Thus, the light beam emitted from the light source passes through the fast axis compression unit and is shaped in the fast axis direction. After compression, it is shaped by the shaping unit 600 and finally emitted by the optical head 500 to form a uniform light spot, where the size of the uniform light spot emitted by any two optical heads 500 is different. In this way, the multiple optical heads 500 have accessory attributes, and the holder can be used with any one of the multiple optical heads 500 according to current needs. When the needs change, the optical head currently matched with the holder can be used. 500 is removed and replaced with another optical head 500 that can meet new needs. That is, each optical head 500 can be detachably connected to the fixed base, thereby meeting different usage needs and scenarios, and due to different replacement requirements During the process of installing the optical head 500, the fixed module 100 remains unchanged, therefore, the user's usage cost can be effectively reduced.

Specifically, for example, as shown in Figure 1, a fixed module 100 and three optical heads 500 are provided. During use, any one of the three optical heads 500 can be installed on the fixed base according to the needs, so that the aforementioned optical path is finally used. The optical head 500 emits a uniform light spot, and when the use requirements change, the specifications and sizes of the uniform light spot can be adjusted, that is, the optical head 500 currently installed on the fixed base is removed, and then replaced with another optical head 500 that can meet the new needs. , so that the size of the uniform light spot emitted by the laser module from the replaced optical head 500 changes correspondingly to meet the user's expectations. Of course, this application does not limit the number of optical heads 500 matched with the fixed module 100, and it can also be four, five, and so on.

Optionally, as shown in FIG. 5 , the width a of the fixed module 100 may be less than 33 mm, such as 31 mm, so as to facilitate the user to hold it and improve the user's experience.

Optionally, as shown in Figure 2 and Figure 3, the fixed base includes a light source base 110 and a cooling base 120 that are fixed to each other. The light source and fast axis compression unit are both arranged in the light source base 110. The optical head 500 The cooling base 120 is detachably provided with a first cooling passage for circulating the cooling medium. Therefore, the light source base 110 and the light source base 110 can be cooled by the first cooling passage built in the cooling base 120 . The optical head 500 dissipates heat to avoid damage caused by overheating of the laser module. It can also reduce the surface temperature of the laser module, thereby improving the user experience. For example, the optical head 500 may need to be in contact with the user's skin. Therefore, by cooling the base 120 after cooling it, the surface temperature of the optical head 500 can be reduced, making it convenient for the user to use.

Optionally, as shown in Figure 4, in order to effectively improve the heat dissipation effect of the optical head 500, the first cooling channel includes a U-shaped channel 123 and an input channel 122 and an output channel 124 respectively connected to both ends of the U-shaped channel 123, so as to facilitate The cooling medium can flow through the U-shaped passage 123 along the input passage 122 and then flow out from the output passage 124. The cooling base 120 has a base 128 and a connecting portion 121 fixed to each other. The input passage 122 and the output passage 124 can be distributed in the base 128. The U-shaped passage 123 can be distributed in the connecting part 121, and the light source base 110 can be fixedly arranged on the base 128 (for example, as shown in FIG. 3, the light source base 110 is fixed to the base 128 through screws 161), and the connecting part 121 can be When connecting the optical head 500, the U-shaped passage 123 can improve the heat dissipation effect of the optical head 500 and effectively reduce the surface temperature of the optical head 500. On this basis, please refer to FIGS. 2 to 4 . The light source base 110 fixedly installed on the base 128 can also be disposed in close contact with one side of the connecting portion 121 , so that the U-shaped passage 123 can also assist the light source. The base 110 dissipates heat. At this time, the optical head 500 can be located on the side of the connecting portion 121 away from the light source base 110. Therefore, the U-shaped passage 123 can be fully utilized to help the light source base 110 and the optical head 500 dissipate heat. At the same time, this distribution method can also facilitate the light beam emitted by the fast-axis compression unit from the light source base 110 to pass through the window 111 on the light source base 110 and then smoothly pass through the light channel opened on the connecting part 121 and enter the optical head. Shaping unit 600 within 500.

Optionally, as shown in Figure 3, in order to facilitate the external connection of the input pipeline and the output pipeline to water pipes, a water connection head 162 can be provided at the outer port of the input pipeline and the output pipeline.

Optionally, please continue to refer to Figure 4. A branch 125 connected in parallel with the U-shaped passage 123 can also be connected between the input passage 122 and the output passage 124. That is, the cooling medium in the input passage 122 can not only pass through the U-shaped passage In addition to flowing into the output passage 124, the passage 123 can also flow into the output passage 124 through the branch passage 125, and the flow cross-sectional area of the U-shaped passage 123 can be larger than the flow cross-section area of the branch passage 125, so that the U-shaped passage 123 can be The flow rate is faster, thereby enhancing the heat dissipation capability of the connecting part 121. It should be understood that the U-shaped passage 123 can be inverted to the state shown in Figure 4, so that the water flow can flow from the lower part through the high part of the U-shaped passage 123 and then to the output passage 124 at the lower part of the flow passage to ensure the heat dissipation effect. .

Optionally, please refer to Figure 3 and Figure 4, a second cooling passage is also provided in the light source base 110, and the input port 126 and the output port 127 of the second cooling passage are respectively connected with the input passage 122 in the base 128. Therefore, the cooling medium flowing into the input channel 122 first flows into the second cooling channel to dissipate heat from the light source base 110 , then returns to the input channel 122 , and flows into the output channel 124 along the U-shaped channel 123 and the branch channel 125 . The input port 126 and the output port 127 of the second cooling passage are sequentially spaced along the flow direction of the cooling medium in the input passage 122, so that the cooling medium can flow into the second cooling passage through the input port 126, and then flow back to the input through the output port 127. Passage 122.

Optionally, in order to further improve heat dissipation, as shown in Figures 2 and 3, the laser module also includes a semiconductor refrigerator 130. At this time, the optical head 500 can be connected to the cooling base 120 through the semiconductor refrigerator 130, that is, the semiconductor refrigerator 130. The refrigerator 130 can be fixed to the connection portion 121 of the cooling base 120 (as shown in FIG. 3 , the semiconductor refrigerator 130 can be fixed to the connection portion 121 via screws 161 ), and more specifically, can be fixed to the connection portion 121 facing away from the light source base. 110 on one side. Therefore, it is convenient for the optical head 500 to be detachably connected to the side of the semiconductor refrigerator 130 away from the connecting portion 121 , the hot surface of the semiconductor refrigerator 130 is attached to the cooling base 120 , and the cold surface of the semiconductor refrigerator 130 can be connected to the cooling base 120 . The optical head 500 is arranged in close contact with each other, so that the heat generated by the optical head 500 can be quickly cooled through the cold surface of the semiconductor refrigerator 130 , and the hot surface of the semiconductor refrigerator 130 can be quickly dissipated by the cooling base 120 .

Optionally, as shown in Figures 2 and 3, the optical head 500 can be detachably connected to the fixed base by magnetic attraction. Specifically, the fixed base can also include a magnetic base 140, and the magnetic base 140 can be fixed to The cold surface of the semiconductor refrigerator 130 (as shown in FIG. 3 , the magnetic base 140 can be fixed to the cold surface of the semiconductor refrigerator 130 through the screws 161 ), and the optical head 500 can be connected through the magnetic base 140 in a magnetic connection. to the semiconductor refrigerator 130, that is, the detachable connection between the optical head 500 and the fixed base is realized.

Specifically, as shown in Figures 6 to 7, Figures 8 to 11, or Figures 12 to 15, a first groove 502 can be provided on the side of the optical head 500 close to the magnetic base 140, and the first magnetic portion 520 can be embedded in the first groove 502, and specifically can be fixed to the first groove 502 through screws 161. Therefore, the surface of the first magnetic part 520 can be in contact with the bottom surface and side surface of the first groove 502. Full contact is made, thereby increasing the contact area between the first magnetic suction part 520 and the optical head 500. As shown in FIG. 3, a second groove is provided on the side of the magnetic suction base 140 close to the optical head 500. The second magnetic suction part 141 is embedded in the two grooves. Therefore, the surface of the second magnetic suction part 141 can also fully contact the bottom surface and side surface of the second groove. When the first magnetic suction part 520 and the second When the magnetic suction part 141 is attracted, the optical head 500 is connected to the magnetic suction base 140 , and the opposite surfaces of the first magnetic suction part 520 and the second magnetic suction part 141 can be attached, so that the first magnetic suction part 520 can pass through and the second magnetic attraction portion 141 to fully conduct the heat on the optical head 500 so that it can be cooled by the semiconductor refrigerator 130 . The first magnetic attraction part 520 and the second magnetic attraction part 141 may be high temperature resistant magnets.

Specifically, during installation, thermal conductive sheets can also be disposed on the surfaces where the first magnetic attraction portion 520 and the second magnetic attraction portion 141 are in contact, and the openings of the first groove 502 and the second groove can be modified through the thermal conductive sheets. Close it, and make the surface of the thermal conductive sheet flush with the surface of the optical head 500 to facilitate the fitting of the two thermal conductive sheets. The material of the thermal conductive sheet may be consistent with the material of the first magnetic attraction part 520 and the second magnetic attraction part 141 .

Optionally, as shown in FIGS. 1 to 15 , multiple probes 150 may be provided on the magnetic base 140 , and contacts 540 may be provided on the optical head 500 , wherein the optical head 500 is fixed to the magnetic base. 140, the contact point 540 on the optical head 500 can contact part of the probe 150, thus corresponding to the trigger signal. In order to facilitate the identification of the optical heads 500 matched with the fixed module 100, the contacts 540 on any two optical heads 500 can be made to contact different probes 150, so that each optical head 500 can trigger different signals, thereby achieving The optical head 500 is identified so that the controller can accurately control the power of the light source to match the currently matched optical head 500 .

Optionally, as shown in Figures 3 and 7, a positioning hole 142 is provided on the magnetic base 140 of the fixed base, and a positioning pin 503 is provided on the optical head 500. Thus, when the optical head 500 is connected to the magnetic When the base 140 is installed, the positioning pin 503 can be inserted into the positioning hole 142 to meet the optical coaxiality requirements.

In order to make the uniform light spot emitted by each optical head 500 have different sizes, the corresponding shaping unit 600 in each optical head 500 can also be composed of different forms. When the shaping unit 600 includes a light guide element, the light guide element can be a light guide element. Waveguide, light guide column or reflective cavity, etc., for example, FIG. 6 and FIG. 7 show the first optical head 500 (the first one is only used for distinction). The shaping unit 600 in the first optical head 500 includes an optical waveguide 620. In order to To facilitate installation, a limiting step and a pressure frame 530 can be provided on the inner wall of the installation cavity 501 in the optical head 500. During installation, the optical waveguide 620 can be clamped and fixed in the installation cavity 501 through the pressure frame 530 and the limitation step. Specifically, as shown in FIG. 7 , the waveguide base 621 can be installed in the installation cavity 501 first, and then the optical waveguide 620 can be installed into the waveguide base 621 , and the optical waveguide 620 can be fastened through the pressing frame 530 . The press frame 530 may be fixed to the optical head 500 through screws. As shown in FIG. 7 , a second optical lens may also be provided between the optical waveguide 620 and the pressure frame 530 . The second optical lens includes a first lens 610 , and the first lens 610 may be a concave mirror. Therefore, from the fixed module 100 The emitted light beam passes through the first lens 610 and then exits from the optical waveguide 620 .

For example, Figures 8 to 11 show a second optical head 500. The shaping unit 600 in the second optical head 500 includes a plurality of first optical lenses arranged sequentially along the optical path. A limited step and a pressing frame are provided in the optical head 500. 530, the pressing frame 530 is used to clamp and fix the plurality of first optical lenses to the optical head 500 in conjunction with the limiting step. As shown in Figures 8 to 11, the shaping unit 600 includes a second lens 630 and a third lens arranged sequentially along the optical path. The three lenses 640 and the fourth lens 650 are then finally pressed to the optical head 500 by the pressing frame 530 . Therefore, the light beam incident on the shaping unit 600 can be shaped in sequence by the second lens 630, the third lens 640 and the fourth lens 650 and then exit to form a uniform light spot. A spacer ring 550 is also provided between adjacent lenses to facilitate passing through the space. Circle 550 defines the distance between two adjacent lenses in the optical path.

As another example, Figures 12 to 15 show the third optical head 500. A second optical lens is provided on the side of the third optical head 500 close to the fixed base. The second optical lens includes a fifth lens 660 and a sixth lens 670. Therefore, the light beam incident on the shaping unit 600 can be shaped in sequence by the fifth lens 660 and the sixth lens 670 before being emitted to form a uniform light spot. A light guide column 560 can be provided on the other side of the third optical head 500, and the light guide column 560 can pass through The elastic ring 561 such as rubber or silicone has an interference fit with the light outlet of the third optical head 500 .

As another example shown in FIG. 16 , a fourth optical head is shown. A reflection cavity 570 that penetrates the optical head is provided on the light exit side of the fourth optical head. The light beam emitted from the fixed module can be reflected by the reflection cavity 570 and then emitted.

In addition, as shown in Figures 6 to 7, Figures 8 to 11, or Figures 12 to 15, the light outlet of the optical head 500 is also provided with a protective window 510 located on the light exit side of the shaping unit 600. Of course, the protective window 510 is also It can be located between the light guide column 560 and the second optical lens.

Another aspect of the embodiment of the present application provides a medical device. The laser medical device includes the above-mentioned laser module. Since the specific structure and beneficial effects of the above-mentioned laser module have been described in detail above, they will not be described again in this application.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims (15)

1. The utility model provides a laser module, its characterized in that includes fixing base and a plurality of optical head, a plurality of optical head be used for the replacement set up in the play light side of fixing base set gradually light source and fast axis compression unit along the light path in the optical head is provided with the plastic unit, the light beam that the light source was emergent is through fast axis compression unit is compressed the back in fast axis direction by the plastic unit plastic and the emergent uniform facula that forms, wherein, through arbitrary two the size of the uniform facula of optical head emergent is different.

2. The laser module of claim 1, wherein the fixing base comprises a light source base and a cooling base which are fixed with each other, the light source and the fast axis compression unit are both arranged in the light source base, the optical head is detachably arranged in the cooling base, and a first cooling passage for radiating heat from the light source base and the optical head is arranged in the cooling base.

3. The laser module of claim 2, wherein the first cooling channel comprises a U-shaped channel and an input channel and an output channel respectively connected to two ends of the U-shaped channel, the cooling base has a connection portion for connecting the optical head, and the U-shaped channels are distributed in the connection portion to dissipate heat of at least the optical head.

4. A laser module as claimed in claim 3 wherein a branch is also in parallel with the U-shaped passage and is in communication between the input passage and the output passage, the U-shaped passage having a flow cross-section with a larger area than the flow cross-section of the branch.

5. The laser module of claim 3 or 4, wherein a second cooling passage is further provided in the light source base, and an input port and an output port of the second cooling passage are sequentially communicated to the input passage at intervals along a flow direction of the input passage.

6. The laser module of claim 2, further comprising a semiconductor refrigerator, wherein the optical head is connected to the cooling base through the semiconductor refrigerator, a hot surface of the semiconductor refrigerator is attached to the cooling base, and a cold surface of the semiconductor refrigerator is used for dissipating heat of the optical head.

7. The laser module of claim 2, wherein a first groove is formed in the optical head, a first magnetic attraction portion is embedded in the first groove, the fixing base further comprises a magnetic attraction seat arranged on the cooling base, a second groove is formed in the magnetic attraction seat, and a second magnetic attraction portion used for being attached to the first magnetic attraction portion is embedded in the second groove.

8. The laser module of claim 7, wherein a plurality of probes are arranged on the magnetic attraction seat, contacts for contacting with part of the probes are arranged on the optical head, and the probes contacted by the contacts on any two optical heads are different.

9. The laser module of claim 1, wherein the fixing base and the optical head are respectively provided with a positioning pin and a positioning hole which are mutually matched and spliced.

10. The laser module of claim 1, wherein the shaping unit comprises a light guide element, a limit step and a press frame are arranged in the optical head, and the press frame is used for clamping and fixing the light guide element on the optical head in cooperation with the limit step;

or, the shaping unit comprises a plurality of first optical lenses which are sequentially arranged along the light path, a limiting step and a pressing frame are arranged in the optical head, the pressing frame is used for being matched with the limiting step to clamp and fix the plurality of first optical lenses on the optical head, and a spacing ring is further arranged between the adjacent first optical lenses.

11. The laser module of claim 10, wherein when the shaping unit includes the light guiding element, the light guiding element is an optical waveguide, and the shaping unit further includes a second optical lens, and the optical waveguide is disposed in the optical head in a penetrating manner and is located on a light emitting side of the second optical lens; the light beam emitted from the second optical lens can be emitted through the optical waveguide.

12. The laser module of claim 10, wherein when the shaping unit includes the light guiding element, the light guiding element is a light guiding column, and the shaping unit further includes a second optical lens, and the light guiding column is disposed in the optical head in a penetrating manner and is located at a light emitting side of the second optical lens; the light beam emitted from the second optical lens can pass through the light guide post and then emit.

13. The laser module of claim 10, wherein when the shaping unit includes the light guiding element, the light guiding element is a reflective cavity, the reflective cavity is disposed in the optical head in a penetrating manner, and the light beam exiting the fixing base can exit after being reflected by the reflective cavity.

14. The laser module of claim 1, wherein a protection window is further disposed at the light exit of the optical head and located at the light exit side of the shaping unit.

15. A medical device comprising a laser module as claimed in any one of claims 1 to 14.