Medical optical fiber beam combining structure

Abstract

The utility model discloses a medical optical fiber beam combining structure which comprises an optical fiber group which comprises at least two first optical fibers and a second optical fiber, and the diameter of the first optical fibers is larger than that of the second optical fiber; the beam combining assembly comprises a first heat sink and a second heat sink, the first heat sink and the second heat sink are hollow shells, the first heat sink is tightly attached to the second heat sink and arranged in the second heat sink, one end of each first optical fiber sequentially penetrates through the second heat sink and the shell wall of one end of the first heat sink and extends into the first heat sink, and the other end of each first optical fiber penetrates through the shell wall of the other end of the first heat sink. One end of the second optical fiber sequentially penetrates through the second heat sink and the shell wall at the other end of the first heat sink and extends into the first heat sink, and one ends of all the first optical fibers are converged and then connected with one end of the second optical fiber in a fusion welding mode in the first heat sink. According to the utility model, the laser beam is aligned to the optical fiber and can be completely received, the manufacturing requirement on the laser is reduced, the manufacturing cost is saved, and the heat dissipation performance of the combined optical fiber is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical laser fibers, in particular to a medical fiber beam combining structure. Background Art

[0002] At present, most of the laser fiber structures used in medical lasers are industrial fiber structures, and their structures are to combine fibers with smaller diameters into fibers with larger diameters, and the heat dissipation effect is poor. However, in actual production, the applicant found that when the laser beam emitted by the current medical laser is projected onto the fiber with a smaller diameter of the traditional industrial fiber, the laser beam is not easily aligned with the fiber, so that the emitted laser optical path cannot be fully received. And in order to achieve a more accurate alignment with the fiber, the process requirements for the laser beam emitting structure of the laser are higher, which also increases the processing difficulty and manufacturing cost of the laser; simply expanding the overall diameter specification of the industrial fiber will increase the fiber manufacturing cost, and using it to receive the laser beam of the original specification will cause the fiber receiving performance to be excessive, resulting in material waste. In addition, industrial fibers cannot well meet the heat dissipation requirements of medical laser fibers when used in medical applications.

[0003] Therefore, the applicant has developed a medical fiber beam combining structure to solve the above problems. Summary of the Utility Model

[0004] The utility model provides a medical fiber beam combining structure to solve the problems that the existing medical laser beam is not easily aligned with the fiber, so that the emitted laser optical path cannot be fully received, and the heat dissipation effect is poor.

[0005] The utility model realizes the above object through the following technical solutions:

[0006] A medical fiber beam combining structure includes:

[0007] A fiber group, the fiber group includes at least two first fibers and one second fiber, and the diameter of the first fiber is greater than that of the second fiber;

[0008] A beam combining component, the beam combining component includes a first heat sink and a second heat sink. Both the first heat sink and the second heat sink are hollow shells. The first heat sink is closely attached to the second heat sink and is arranged inside the second heat sink. One end of each first fiber sequentially passes through the second heat sink, the wall of one end of the first heat sink and extends into the interior of the first heat sink. One end of the second fiber sequentially passes through the second heat sink, the wall of the other end of the first heat sink and extends into the interior of the first heat sink. One ends of all the first fibers converge and are welded to one end of the second fiber inside the first heat sink.

[0009] Specifically, the first heat sink includes a first housing, at least two first through holes, a second through hole, and a plurality of first mounting holes. The first housing has a hollow interior structure. The first through holes are arranged in parallel at one end of the first housing. The second through hole is arranged at the other end of the first housing. The plurality of first mounting holes are arranged on the outer surfaces on both sides of the first housing. One end of the first optical fiber passes through the first through hole, and one end of the second optical fiber passes through the second through hole.

[0010] Specifically, the second heat sink includes a second housing, at least two third through holes, a fourth through hole, a plurality of second mounting holes, a plurality of third mounting holes, and mounting ear plates. The second housing has a hollow interior structure. The third through holes are arranged in parallel at one end of the second housing and correspond to the positions of the first through holes. The fourth through hole is arranged at the other end of the second housing and corresponds to the position of the second through hole. The plurality of second mounting holes are arranged on the outer surfaces on both sides of the second housing. The plurality of third mounting holes are arranged in the middle of the second housing and correspond to the positions of the first mounting holes. The mounting ear plates are arranged on the outer surfaces on both sides of the second housing. One end of the first optical fiber passes through the third through hole, and one end of the second optical fiber passes through the fourth through hole.

[0011] Specifically, the mounting ear plates and the second mounting holes are alternately arranged on the outer surfaces on both sides of the second housing.

[0012] Further, there is a section of the first optical fiber between the optical fiber outlet of the first through hole and the optical fiber inlet of the third through hole, and there is a section of the second optical fiber between the optical fiber outlet of the second through hole and the optical fiber inlet of the fourth through hole.

[0013] Preferably, both the first heat sink and the second heat sink are in a cuboid structure.

[0014] Preferably, the diameter of the first optical fiber is 0.6 mm, and the diameter of the second optical fiber is 0.4 mm.

[0015] Preferably, the optical fiber group includes two first optical fibers and one second optical fiber.

[0016] Preferably, the first heat sink is a housing made of H59 brass material, and the second heat sink is a housing made of 7075 aluminum alloy.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The medical optical fiber beam combining structure proposed by the present utility model combines several optical fibers with a larger diameter into an optical fiber with a smaller diameter, thereby solving the problem that the laser beam is not easily aligned with the optical fiber, resulting in the laser optical path emitted not being fully received. At the same time, it avoids material waste, and the first heat sink and the second heat sink can well meet the heat dissipation requirements of the medical laser optical fiber. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the medical optical fiber beam combining structure in the embodiment of the present application;

[0020] Figure 2 It is a schematic structural diagram of the first heat sink in the embodiment of the present application;

[0021] Figure 3 It is a schematic structural diagram of the second heat sink in the embodiment of the present application;

[0022] In the figure: 1 - the first optical fiber; 2 - the second optical fiber; 3 - the second heat sink; 310 - the third through hole; 320 - the fourth through hole; 330 - the second mounting hole; 340 - the mounting ear plate; 350 - the third mounting hole; 4 - the first heat sink; 410 - the first through hole; 420 - the second through hole; 430 - the first mounting hole; 5 - the fusion joint. Detailed Embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0025] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0027] In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "set", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, 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, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] The following will describe in detail the specific embodiments of the present utility model with reference to the drawings.

[0030] As Figure 1 shown, a medical optical fiber beam combining structure includes:

[0031] An optical fiber group, the optical fiber group includes at least two first optical fibers 1 and one second optical fiber 2, and the diameter of the first optical fiber 1 is greater than the diameter of the second optical fiber 2;

[0032] A beam combining component, the beam combining component includes a first heat sink 4 and a second heat sink 3. Both the first heat sink 4 and the second heat sink 3 are hollow shells. The first heat sink 4 is closely attached to the second heat sink 3 and is arranged inside the second heat sink 3. One end of each first optical fiber 1 sequentially passes through the second heat sink 3, the wall of one end of the first heat sink 4 and extends into the interior of the first heat sink 4. One end of the second optical fiber 2 sequentially passes through the second heat sink 3, the wall of the other end of the first heat sink 4 and extends into the interior of the first heat sink 4. One ends of all the first optical fibers 1 are converged and are fusion-connected to one end of the second optical fiber 2 inside the first heat sink 4.

[0033] In the embodiment of the present utility model, the laser beam is aligned to the optical fiber and can be completely received through the first optical fiber 1 with a larger diameter and the second optical fiber 2 with a smaller diameter, which reduces the manufacturing requirements for the laser, saves the manufacturing cost, and avoids material waste at the same time. The heat dissipation after the fiber beam combination is realized through the first heat sink 4 and the second heat sink 3 to ensure the performance of the first optical fiber 1 and the second optical fiber 2 after the beam combination.

[0034] As Figure 2 shown, in some embodiments, the first heat sink 4 includes a first housing, at least two first through holes 410, a second through hole 420, and a plurality of first mounting holes 430. The first housing is a hollow structure inside. Each of the first through holes 410 is arranged in parallel at one end of the first housing. The second through hole 420 is arranged at the other end of the first housing. A plurality of the first mounting holes 430 are arranged on the outer surfaces on both sides of the first housing. One end of the first optical fiber 1 passes through the first through hole 410, and one end of the second optical fiber 2 passes through the second through hole 420.

[0035] As Figure 3 shown, in some embodiments, the second heat sink 3 includes a second housing, at least two third through holes 310, a fourth through hole 320, a plurality of second mounting holes 330, a plurality of third mounting holes 350, and mounting ear plates 340. The second housing is a hollow structure inside. Each of the third through holes 310 is arranged in parallel at one end of the second housing and corresponds to the position of the first through hole 410. The fourth through hole 320 is arranged at the other end of the second housing and corresponds to the position of the second through hole 420. A plurality of the second mounting holes 330 are arranged on the outer surfaces on both sides of the second housing. A plurality of the third mounting holes 350 are arranged in the middle of the second housing and correspond to the position of the first mounting hole 430. The third mounting hole 350 and the first mounting hole 430 are connected by screws. The mounting ear plates 340 are arranged on the outer surfaces on both sides of the second housing. One end of the first optical fiber 1 passes through the third through hole 310, and one end of the second optical fiber 2 passes through the fourth through hole 320.

[0036] As Figure 3 shown, in some embodiments, the mounting ear plates 340 and the second mounting holes 330 are alternately arranged on the outer surfaces on both sides of the second housing.

[0037] As Figure 1As shown, in some embodiments, there is a section of the first optical fiber 1 between the optical fiber outlet of the first through hole 410 and the optical fiber inlet of the third through hole 310, and there is a section of the second optical fiber 2 between the optical fiber outlet of the second through hole 420 and the optical fiber inlet of the fourth through hole 320. This enables the heat dissipation area of the second heat sink 4 to extend from the fusion joint 5 of the first optical fiber 1 and the second optical fiber 2 to the first optical fiber 1 and the second optical fiber 2, improving the heat dissipation effect.

[0038] As Figure 1 shown, in some embodiments, it is preferred that both the first heat sink 4 and the second heat sink 3 are of a square body structure.

[0039] In some embodiments, it is preferred that the diameter of the first optical fiber 1 is 0.6 mm and the diameter of the second optical fiber 2 is 0.4 mm.

[0040] In some embodiments, it is preferred that the optical fiber group includes two of the first optical fibers 1 and one of the second optical fibers 2.

[0041] In some embodiments, it is preferred that the first heat sink 4 is a housing made of H59 brass material, and the second heat sink 3 is a housing made of 7075 aluminum alloy.

[0042] The medical optical fiber beam combining structure proposed by the present utility model combines several optical fibers with a larger diameter into an optical fiber with a smaller diameter, thereby solving the problem that the laser beam is not easily aligned with the optical fiber, resulting in the laser optical path not being fully received, and at the same time avoiding material waste. By providing the first heat sink and the second heat sink, the heat dissipation requirements of the medical laser optical fiber can be well met.

[0043] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A medical optical fiber beam combining structure, characterized in that Comprising: An optical fiber group, the optical fiber group includes at least two first optical fibers (1) and one second optical fiber (2), and the diameter of the first optical fiber (1) is greater than the diameter of the second optical fiber (2); A beam combining component, the beam combining component includes a first heat sink (4) and a second heat sink (3), both the first heat sink (4) and the second heat sink (3) are hollow shells, the first heat sink (4) is closely attached to the second heat sink (3) and is arranged inside the second heat sink (3), one end of each first optical fiber (1) sequentially passes through the second heat sink (3), the shell wall of one end of the first heat sink (4) and extends into the interior of the first heat sink (4), one end of the second optical fiber (2) sequentially passes through the second heat sink (3), the shell wall of the other end of the first heat sink (4) and extends into the interior of the first heat sink (4), and one end of all the first optical fibers (1) is fused and connected to one end of the second optical fiber (2) inside the first heat sink (4).

2. The medical optical fiber beam combining structure according to claim 1, characterized in that, The first heat sink (4) includes a first shell, at least two first through holes (410), one second through hole (420) and several first mounting holes (430), the first shell is a hollow structure inside, each of the first through holes (410) is arranged in parallel on one end of the first shell, the second through hole (420) is arranged on the other end of the first shell, and several first mounting holes (430) are arranged on the outer surfaces on both sides of the first shell, the first through holes (410) are for one end of the first optical fiber (1) to pass through, and the second through hole (420) is for one end of the second optical fiber (2) to pass through.

3. The medical optical fiber beam combining structure according to claim 2, characterized in that, The second heat sink (3) includes a second shell, at least two third through holes (310), one fourth through hole (320), several second mounting holes (330), several third mounting holes (350) and mounting ear plates (340), the second shell is a hollow structure inside, each of the third through holes (310) is arranged in parallel on one end of the second shell and corresponds to the position of the first through hole (410), the fourth through hole (320) is arranged on the other end of the second shell and corresponds to the position of the second through hole (420), several second mounting holes (330) are arranged on the outer surfaces on both sides of the second shell, several third mounting holes (350) are arranged in the middle of the second shell and correspond to the position of the first mounting hole (430), the third mounting hole (350) is connected to the first mounting hole (430) by screws, the mounting ear plates (340) are arranged on the outer surfaces on both sides of the second shell, the third through holes (310) are for one end of the first optical fiber (1) to pass through, and the fourth through hole (320) is for one end of the second optical fiber (2) to pass through.

4. A medical optical fiber beam combining structure according to claim 3, characterized in that, The mounting ear plates (340) and the second mounting holes (330) are alternately arranged on the outer surfaces on both sides of the second shell.

5. The medical optical fiber beam combining structure according to claim 3, characterized in that, There is a section of the first optical fiber (1) between the optical fiber outlet of the first through hole (410) and the optical fiber inlet of the third through hole (310), and there is a section of the second optical fiber (2) between the optical fiber outlet of the second through hole (420) and the optical fiber inlet of the fourth through hole (320).

6. The medical optical fiber beam combining structure according to claim 1, wherein Both the first heat sink (4) and the second heat sink (3) are of a square body structure.

7. A medical optical fiber beam combining structure according to claim 1, characterized in that, The diameter of the first optical fiber (1) is 0.6 mm, and the diameter of the second optical fiber (2) is 0.4 mm.

8. A medical optical fiber beam combining structure according to claim 1, characterized in that, The optical fiber group includes two of the first optical fibers (1) and one of the second optical fibers (2).

9. A medical optical fiber beam combining structure according to claim 1, wherein The first heat sink (4) is a housing made of H59 brass material, and the second heat sink (3) is a housing made of 7075 aluminum alloy.

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