Optical fiber quick-changing structure and endoscope

Abstract

The utility model belongs to the technical field of endoscope structures, and discloses an optical fiber quick-changing structure and an endoscope. The optical fiber quick-changing structure comprises an optical fiber mounting block, an optical fiber penetrating pipe and an optical fiber locking stud, the optical fiber mounting block is provided with a first hole, one end of the optical fiber penetrating pipe is fixedly connected to one end of the first hole, and a laser optical fiber can penetrate through the optical fiber penetrating pipe and penetrate through the optical fiber mounting block through the first hole. The optical fiber locking stud is provided with a second hole in a penetrating manner, and the position and / or angle between the optical fiber locking stud and the optical fiber mounting block are / is adjustable, so that the second hole and the first hole have an alignment state and a staggered state, and the laser optical fiber is slidably arranged in the first hole and the second hole in the alignment state; the laser fiber is clamped and fixed by the inner walls of the first hole and the second hole in the staggered state, so that the laser fiber is fixed and unfixed, the penetrating, fixing and extracting processes of the laser fiber are greatly simplified, and the use efficiency and compatibility are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscope structures, in particular to an optical fiber quick-change structure and an endoscope. Background Art

[0002] Traditional endoscopic handpieces, especially those for laser cystoscopy, have significant limitations in adapting to different fiber optic tube sizes. These limitations not only limit the flexibility and application scope of the device, but also increase the complexity and time cost of operation.

[0003] First, the first existing method is to achieve fiber optic adaptation by cutting rotating grooves in the fiber optic tube. However, this method has strict requirements on the wall thickness of the fiber optic tube. Too thin a tube wall can easily lead to deformation or breakage, thus limiting its application in smaller diameter endoscopes. More importantly, to accommodate these rotating grooves, the overall thickness of the fiber optic tube must be increased, further reducing the efficient utilization of the internal space of the endoscope, adversely affecting the precision of surgical operations and the clarity of the field of view.

[0004] Another common solution involves creating a small cut in the fiber optic conduit to lock it in place. While this method may seem simple, it presents numerous practical inconveniences. During installation, the operator must precisely mark the direction of the fiber optic conduit to ensure smooth insertion and locking. Incorrect marking or inaccurate installation necessitates multiple adjustments or even reinstallation, which undoubtedly increases the complexity and time-consuming nature of the procedure. Furthermore, the inefficiency of this installation method directly impacts the overall surgical process and patient outcomes.

[0005] Based on the above, there is an urgent need for an optical fiber quick-change structure and an endoscope to solve the above technical problems. Utility Model Content

[0006] The purpose of the utility model is to provide an optical fiber quick-change structure and an endoscope, which can quickly and conveniently install the optical fiber on the endoscope handpiece and realize rapid adaptation of different types of optical fibers.

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

[0008] Fiber optic quick-change structure, including:

[0009] an optical fiber mounting block, the optical fiber mounting block being used to connect to a hand piece of an endoscope, the optical fiber mounting block having a first hole extending through the optical fiber mounting block;

[0010] An optical fiber tube, one end of which is fixedly connected to one end of the first hole, and a laser optical fiber can be inserted into the optical fiber tube and pass through the optical fiber mounting block through the first hole;

[0011] An optical fiber locking stud is provided with a second hole through which the laser optical fiber can pass simultaneously.

[0012] Furthermore, the position and / or angle between the optical fiber locking stud and the optical fiber mounting block are adjustable so that the second hole and the first hole have an aligned state and a staggered state. In the aligned state, the laser optical fiber is slidably arranged in the first hole and the second hole, and in the staggered state, the inner walls of the first hole and the second hole clamp and fix the laser optical fiber.

[0013] Preferably, the optical fiber mounting block is provided with a stud mounting hole, the stud mounting hole is connected to the middle of the first hole, and,

[0014] The optical fiber locking stud is slidably arranged in the stud mounting hole along the axis direction of the stud mounting hole; and / or,

[0015] The optical fiber locking stud is rotatably arranged in the stud mounting hole around the axis direction of the stud mounting hole.

[0016] Preferably, a first guide portion is provided on the inner wall of the stud mounting hole, and a second guide portion is protrudingly provided on the outer wall of the optical fiber locking stud, and the first guide portion and the second guide portion are plugged into and matched with each other to limit the sliding of the optical fiber locking stud along the axial direction of the stud mounting hole or the rotation of the optical fiber locking stud around the axial direction of the stud mounting hole.

[0017] Preferably, the first guide portion is a guide groove extending along the axial direction of the stud mounting hole, and the second guide portion is a ball protruding from the outer peripheral surface of the optical fiber locking stud, and the ball can slide and / or roll along the guide groove.

[0018] Preferably, one end of the optical fiber locking stud is threadedly connected to a optical fiber locking nut, and the optical fiber locking nut is rotatably arranged. The optical fiber locking nut is configured so that when the optical fiber locking nut is rotated, the optical fiber locking stud can slide along the axial direction of the stud mounting hole, so that the second hole and the first hole are switched between the aligned state and the staggered state.

[0019] Preferably, the other end of the optical fiber locking stud is connected to an elastic member, which is fixedly arranged in the stud mounting hole and can enable the optical fiber locking stud to move, and the elastic member is used to keep the second hole and the first hole in the staggered state.

[0020] Preferably, a countersunk head is provided at the end of the stud mounting hole, and a fiber optic locking knob is fixedly provided inside the countersunk head. The fiber optic locking knob is rotatably provided around the axial direction of the stud mounting hole and is transmission-connected to the fiber optic locking nut. The fiber optic locking knob can drive the fiber optic locking nut to rotate.

[0021] Preferably, a sealing ring is provided between the optical fiber locking stud and the stud mounting hole.

[0022] Preferably, a soft rubber portion is provided in the optical fiber locking screw, and the soft rubber portion is provided with the second hole.

[0023] Preferably, the optical fiber quick-change structure also includes an optical fiber perforation seat, which is provided with a third hole. The optical fiber perforation seat is fixedly connected to the optical fiber mounting block and one end of the third hole is connected to the other end of the first hole. The other end of the third hole is tapered to facilitate the laser optical fiber to pass through the third hole.

[0024] An endoscope comprises a hand piece and the above-mentioned optical fiber quick-change structure, wherein the optical fiber quick-change structure is detachably mounted on the hand piece.

[0025] Preferably, the handpiece includes a handle assembly and an optical scope channel tube, the handle assembly is connected to the middle part of the optical scope channel tube, the handle assembly is provided with a sealing hole, and the front end outer wall surface of the optical scope channel tube is connected to a fixed tube, and the optical fiber through-tube of the optical fiber quick-change structure can be sequentially passed through the sealing hole and the fixed tube.

[0026] Preferably, an adjustment component is provided at the rear end of the optical mirror channel tube, and the adjustment component includes a fiber optic movable seat, and the fiber optic movable seat is adjustably arranged along the axial direction of the optical mirror channel tube, and the fiber optic movable seat is detachably connected to the fiber optic mounting block of the fiber optic quick-change structure.

[0027] Preferably, the optical fiber movable seat is provided with a mounting groove, the optical fiber mounting block is provided with a clamping portion, the clamping portion can be detachably snap-connected to the mounting groove, the optical fiber movable seat is installed with a screw, the optical fiber mounting block is provided with a limiting groove, the limiting groove is provided along the direction in which the clamping portion is embedded in the mounting groove, and,

[0028] The top end of the screw can abut against the inner wall of the limiting groove when the clamping portion is installed in the installation groove.

[0029] The beneficial effects of the present invention are as follows: by sliding or rotating the optical fiber locking stud through the optical fiber quick-change structure, the axial distance or axial angle between the first hole and the second hole is changed, so that the first hole and the second hole can be switched between the aligned state and the staggered state, thereby achieving the fixation and release of the laser optical fiber, greatly simplifying the process of threading, fixing and extracting the laser optical fiber, and improving the efficiency of use. At the same time, the clamping and fixing method is compatible with multiple models of laser optical fibers within a certain diameter range, and the handpiece can also be replaced with an optical fiber quick-change structure with optical fiber tubes of different diameters, thereby facilitating the rapid adaptation of different models of optical fibers and enhancing the compatibility and versatility of the optical fiber quick-change structure and the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional diagram of the endoscope provided by the present utility model;

[0031] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle;

[0032] Figure 3 This is the first stereoscopic view of the optical fiber installation block in the present invention;

[0033] Figure 4 This is a second stereoscopic view of the optical fiber mounting block of the present invention;

[0034] Figure 5 It is a structural diagram of the optical fiber locking stud in the utility model;

[0035] Figure 6 This is an exploded view of the optical fiber quick-change structure provided by the utility model;

[0036] Figure 7 It is a schematic diagram of the optical fiber moving seat in the utility model.

[0037] In the picture:

[0038] 11. Fiber mounting block; 111. First hole; 112. Stud mounting hole; 113. Clamping portion; 114. Limiting groove; 1121. First guide portion; 12. Fiber tube; 13. Fiber locking stud; 131. Second hole; 132. Second guide portion; 133. Sealing groove; 134. Soft rubber portion; 14. Fiber locking nut; 15. Elastic member; 16. Fiber locking knob; 17. Sealing ring; 18. Fiber perforation seat; 181. Third hole;

[0039] 21. Handle assembly; 211. Sealing hole; 22. Optical mirror channel tube; 23. Fixed tube; 241. Fiber optic movable seat; 2411. Mounting slot; 242. Screw; 25. Push assembly. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0041] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0044] The following is based on the attached Figure 1 To the attached Figure 7 The utility model introduces an optical fiber quick-change structure and an endoscope.

[0045] like Figure 1 、 Figure 2 As shown, the endoscope includes a hand piece and an optical fiber quick-change structure. The optical fiber quick-change structure is installed on the hand piece and can facilitate the insertion of the laser optical fiber.

[0046] Specifically, in this embodiment, the optical fiber quick-change structure includes an optical fiber installation block 11, an optical fiber tube 12, and an optical fiber locking screw 13. The optical fiber installation block 11 can be connected to the handpiece of the endoscope, thereby fixing the optical fiber quick-change structure to the handpiece for easy operation. Figure 3 、 Figure 4 As shown, fiber mounting block 11 has a first hole 111 extending through the block, and one end of first hole 111 is fixedly connected to one end of fiber tube 12. A laser fiber can pass through first hole 111, through fiber mounting block 11, into fiber tube 12, and out the other end of fiber tube 12, thereby irradiating the diseased tissue. Fiber tube 12 also protects the laser fiber and prevents its end from shaking.

[0047] refer to Figure 3 、 Figure 5 As shown, the optical fiber locking stud 13 can be movably connected to the optical fiber mounting block 11, and a second hole 131 is provided through the optical fiber locking stud 13. When the laser optical fiber is installed, the laser optical fiber is simultaneously passed through the first hole 111, the second hole 131 and the optical fiber tube 12. By moving the optical fiber locking stud 13, the second hole 131 and the first hole 111 can be formed into an aligned state and a staggered state. In the aligned state, the axial distance and the axial angle between the first hole 111 and the second hole 131 are both small, and the laser optical fiber can be slidably arranged in the first hole 111 and the second hole 131, thereby facilitating the insertion or extraction of the laser optical fiber; in the staggered state, at least one of the axial distance and the axial angle between the first hole 111 and the second hole 131 is greater than a preset value, so that the inner walls of the first hole 111 and the second hole 131 can clamp and fix the laser optical fiber.

[0048] During use, by sliding or rotating the optical fiber locking stud 13, the axial distance or axial angle between the first hole 111 and the second hole 131 changes, and the first hole 111 and the second hole 131 can be switched between the aligned state and the staggered state, thereby achieving the fixation and release of the laser optical fiber, greatly simplifying the process of threading, fixing and extracting the laser optical fiber and improving the efficiency of use. At the same time, the clamping and fixing method is compatible with multiple types of laser optical fibers within a certain diameter range, thereby facilitating the rapid adaptation of different types of optical fibers, enhancing the compatibility and versatility of the optical fiber quick-change structure and the endoscope.

[0049] Specifically, if Figure 3 、 Figure 4As shown, in this embodiment, a first hole 111 is provided through two opposing sides of the fiber optic mounting block 11. One end of the first hole 111 forms a first opening on one side, and the other end forms a second opening on the opposing side. The outer wall of the first opening is welded to the fiber optic tube 12, thereby connecting the first hole 111 and the fiber optic tube 12. A stud mounting hole 112 is provided in the fiber optic mounting block 11 in a direction parallel to the opposing sides, and the stud mounting hole 112 is connected to the center of the first hole 111. When the fiber optic locking stud 13 is installed in the stud mounting hole 112, the first hole 111 and the second hole 131 can be aligned or staggered by sliding the fiber optic locking stud 13 along the axis of the stud mounting hole 112 or rotating the fiber optic locking stud 13 about the axis of the stud mounting hole 112.

[0050] Alternatively, as Figure 2 As shown, the fiber optic quick-change structure also includes a fiber optic perforation seat 18, which is provided with a third hole 181. Fiber optic perforation seat 18 is fixedly connected to the fiber optic mounting block 11, and one end of third hole 181 is connected to the other end of first hole 111. The other end of third hole 181 is tapered to facilitate the insertion of the laser fiber into third hole 181. After passing through third hole 181 into fiber optic perforation seat 18, the laser fiber passes through fiber optic mounting block 11 and fiber locking stud 13, and finally through fiber optic tube 12, allowing the output end of the laser fiber to reach the front end of the endoscope.

[0051] Preferably, in this embodiment, a first guide portion 1121 is provided on the inner wall of the stud mounting hole 112, and a second guide portion 132 is protruding from the outer wall of the optical fiber locking stud 13. The first guide portion 1121 and the second guide portion 132 are plugged into and matched with each other to limit the sliding of the optical fiber locking stud 13 along the axis of the stud mounting hole 112, or to limit the rotation of the optical fiber locking stud 13 around the axis of the stud mounting hole 112.

[0052] For example, in this embodiment, the first hole 111 and the second hole 131 are aligned and offset by sliding along the axis of the stud mounting hole 112. Furthermore, the first guide portion 1121 is a linear guide groove extending along the axis of the stud mounting hole 112, and the second guide portion 132 is a ball bearing protruding from the outer circumference of the fiber locking stud 13. The ball bearing can slide or roll within the linear guide groove to achieve position limiting with minimal resistance. By forming the first guide portion 1121 and the second guide portion 132, the sliding direction or rotation direction of the fiber locking stud 13 can be limited, thereby preventing each sliding or rotation from reaching a similar relative position or angle, thus preventing clamping damage to the laser fiber and facilitating the rotation or sliding of the fiber locking stud 13.

[0053] Of course, in some other embodiments, the first guide portion 1121 can also be set as an annular guide groove arranged around the axial direction of the stud mounting hole 112, or a spiral guide groove. These can all play a suitable guiding and limiting effect and are within the scope of protection of the present utility model.

[0054] like Figure 5 、 Figure 6 As shown, in this embodiment, the fiber optic quick-change structure further includes a fiber optic locking nut 14, which is rotatably disposed within the stud mounting hole 112 and threadedly connected to one end of the fiber optic locking stud 13. When the fiber optic locking nut 14 rotates, the fiber optic locking stud 13 slides along the axis of the stud mounting hole 112, switching the second hole 131 and the first hole 111 between an aligned state and an offset state. Optionally, a sealing groove 133 is provided on the fiber optic locking stud 13, into which a sealing ring 17 can be installed, thereby sealing the inner wall of the stud mounting hole 112 and the fiber optic locking stud 13 to prevent contamination.

[0055] Preferably, a soft rubber portion 134 is provided in the optical fiber locking stud 13, and the second hole 131 is formed in the soft rubber portion 134. The soft rubber portion 134 is made of a material such as silicone, which can provide a certain degree of protection for the laser fiber and enhance friction when the laser fiber is misaligned, thereby preventing damage to the laser fiber and improving the clamping and fixing effect.

[0056] like Figure 6 As shown, the other end of the fiber optic locking stud 13 is connected to an elastic member 15. The elastic member 15 is a spring, which is fixedly disposed within the stud mounting hole 112 and enables the fiber optic locking stud 13 to move along the axis of the stud mounting hole 112. The elastic member 15 is used to maintain the second hole 131 in an offset state with the first hole 111, thereby further facilitating the use of the endoscope.

[0057] Continue to refer Figure 5 、 Figure 6 As shown, the end of the stud mounting hole 112 is provided with a countersunk head, in which a fiber locking knob 16 is fixedly mounted. The fiber locking knob 16 is rotatably arranged about the axis of the stud mounting hole 112 and is transmission-connected to the fiber locking nut 14. The fiber locking knob 16 can drive the fiber locking nut 14 to rotate. During use, by rotating the fiber locking knob 16, the fiber locking nut 14 rotates and drives the fiber locking stud 13 to move against the elastic member 15, thereby shifting the second hole 131 and the first hole 111 from a misaligned state to an aligned state, facilitating the installation or removal of the laser fiber.

[0058] Of course, in some embodiments, the fiber locking knob 16 may be directly connected to the fiber locking screw 13, and the second hole 131 and the first hole 111 may be switched between the staggered state and the aligned state by driving the fiber locking screw 13 to rotate. This also falls within the scope of protection of the present invention.

[0059] The present invention also provides an endoscope, comprising a handpiece and the above-mentioned optical fiber quick-change structure, and the optical fiber quick-change structure is detachably mounted on the handpiece. Through the optical fiber quick-change structure, the optical fiber locking stud 13 is slid or rotated, so that the axial distance or axial angle between the first hole 111 and the second hole 131 changes, so that the first hole 111 and the second hole 131 can be switched between the aligned state and the staggered state, thereby achieving the fixation of the laser optical fiber and the release of the fixation of the laser optical fiber, greatly simplifying the process of threading, fixing and extracting the laser optical fiber, and improving the efficiency of use. At the same time, the clamping and fixing method can be compatible with multiple models of laser optical fibers within a certain diameter range, and the handpiece can also be replaced with an optical fiber quick-change structure with an optical fiber tube 12 of different diameters, so as to facilitate the rapid adaptation of different models of optical fibers, thereby enhancing the compatibility and versatility of the optical fiber quick-change structure and the endoscope.

[0060] Specifically, if Figure 1 、 Figure 2 As shown, the handpiece includes a handle assembly 21 and an optical scope channel tube 22. The handle assembly 21 is connected to the middle of the optical scope channel tube 22. The handle assembly 21 is provided with a sealing hole 211, and the front outer wall of the optical scope channel tube 22 is connected to a fixing tube 23. The optical fiber tube 12 of the optical fiber quick-change structure can be sequentially inserted into the sealing hole 211 and the fixing tube 23, thereby securing the optical fiber tube 12 and reducing the vibration of the laser fiber extending from the optical fiber tube 12.

[0061] like Figure 2 As shown, the rear end of the optical scope channel tube 22 is provided with an adjustment assembly, which includes a fiber optic movable seat 241. The fiber optic movable seat 241 is adjustable along the axis of the optical scope channel tube 22 and is detachably connected to the fiber optic mounting block 11 of the optical fiber quick-change structure. The adjustment assembly also includes a push assembly 25, which is connected between the optical scope channel tube 22 and the fiber optic movable seat 241 and can adjust the position of the fiber optic movable seat 241 to meet the specific requirements of the surgical operation.

[0062] More specifically, refer to Figure 4 、 Figure 7As shown, the optical fiber moving seat 241 is provided with a mounting groove 2411, and the optical fiber mounting block 11 is provided with a clamping portion 113, which can be removably snap-connected to the mounting groove 2411. A selector screw 242 is installed on the optical fiber moving seat 241, and the optical fiber mounting block 11 is provided with a limiting groove 114, which is arranged along the direction in which the clamping portion 113 is embedded in the mounting groove 2411. In addition, the top of the selector screw 242 can abut against the inner wall of the limiting groove 114 when the clamping portion 113 is installed in the mounting groove 2411, thereby providing guidance and limiting effects, facilitating the installation and fixation of the optical fiber mounting block 11.

[0063] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Fiber optic quick-change structure, characterized in that: include: An optical fiber mounting block (11), the optical fiber mounting block (11) being used for connecting a handpiece of an endoscope, the optical fiber mounting block (11) having a first hole (111), the first hole (111) penetrating the optical fiber mounting block (11); an optical fiber tube (12), one end of the optical fiber tube (12) being fixedly connected to one end of the first hole (111), and a laser optical fiber being capable of being inserted into the optical fiber tube (12) and passing through the optical fiber mounting block (11) via the first hole (111); An optical fiber locking screw (13), wherein the optical fiber locking screw (13) is provided with a second hole (131) therethrough, and the laser optical fiber can be simultaneously provided through the first hole (111) and the second hole (131). Furthermore, the position and / or angle between the optical fiber locking screw (13) and the optical fiber mounting block (11) are adjustable, so that the second hole (131) and the first hole (111) have an aligned state and a staggered state. In the aligned state, the laser optical fiber is slidably arranged in the first hole (111) and the second hole (131). In the staggered state, the inner walls of the first hole (111) and the second hole (131) clamp and fix the laser optical fiber.

2. The optical fiber quick-change structure according to claim 1, characterized in that: The optical fiber installation block (11) is provided with a stud installation hole (112), the stud installation hole (112) is connected to the middle of the first hole (111), and, The optical fiber locking stud (13) is slidably arranged in the stud mounting hole (112) along the axial direction of the stud mounting hole (112); and / or, The optical fiber locking stud (13) is rotatably arranged in the stud mounting hole (112) around the axial direction of the stud mounting hole (112).

3. The optical fiber quick-change structure according to claim 2, characterized in that: The inner wall of the stud mounting hole (112) is provided with a first guide portion (1121), and the outer wall of the optical fiber locking stud (13) is protrudingly provided with a second guide portion (132). The first guide portion (1121) and the second guide portion (132) are plugged into and matched with each other to limit the sliding of the optical fiber locking stud (13) along the axial direction of the stud mounting hole (112) or the rotation of the optical fiber locking stud (13) around the axial direction of the stud mounting hole (112).

4. The optical fiber quick-change structure according to claim 3, characterized in that: The first guide portion (1121) is a guide groove extending along the axial direction of the stud mounting hole (112), and the second guide portion (132) is a ball protruding from the outer peripheral surface of the optical fiber locking stud (13), and the ball can slide and / or roll along the guide groove.

5. The optical fiber quick-change structure according to claim 4, characterized in that: One end of the optical fiber locking stud (13) is threadedly connected to a optical fiber locking nut (14), and the optical fiber locking nut (14) is rotatably arranged. The optical fiber locking nut (14) is configured so that when the optical fiber locking nut (14) rotates, the optical fiber locking stud (13) can slide along the axial direction of the stud mounting hole (112), so that the second hole (131) and the first hole (111) are switched between the aligned state and the staggered state.

6. The optical fiber quick-change structure according to claim 5, characterized in that: The other end of the optical fiber locking stud (13) is connected to an elastic member (15), the elastic member (15) is fixedly arranged in the stud mounting hole (112) and can enable the optical fiber locking stud (13) to move, and the elastic member (15) is used to keep the second hole (131) and the first hole (111) in the staggered state.

7. The optical fiber quick-change structure according to claim 5, characterized in that: A countersunk head is provided at the end of the stud mounting hole (112), and a fiber locking knob (16) is fixedly provided in the countersunk head. The fiber locking knob (16) is rotatably provided around the axis of the stud mounting hole (112) and is transmission-connected to the fiber locking nut (14). The fiber locking knob (16) can drive the fiber locking nut (14) to rotate.

8. The optical fiber quick-change structure according to claim 5, characterized in that: A sealing ring (17) is provided between the optical fiber locking stud (13) and the stud mounting hole (112).

9. The optical fiber quick-change structure according to claim 1, characterized in that: A soft rubber portion (134) is provided in the optical fiber locking screw (13), and the soft rubber portion (134) is provided with the second hole (131).

10. The optical fiber quick-change structure according to claim 1, characterized in that: The optical fiber quick-change structure further includes an optical fiber perforation seat (18), wherein the optical fiber perforation seat (18) is provided with a third hole (181), the optical fiber perforation seat (18) is fixedly connected to the optical fiber mounting block (11), and one end of the third hole (181) is connected to the other end of the first hole (111), and the other end of the third hole (181) is tapered to facilitate the laser optical fiber to penetrate the third hole (181).

11. An endoscope, characterized in that It comprises a hand piece and an optical fiber quick-change structure according to any one of claims 1 to 10, wherein the optical fiber quick-change structure is detachably mounted on the hand piece.

12. The endoscope according to claim 11, wherein: The handpiece comprises a handle assembly (21) and an optical microscope channel tube (22); the handle assembly (21) is connected to the middle portion of the optical microscope channel tube (22); the handle assembly (21) is provided with a sealing hole (211); and the front end outer wall surface of the optical microscope channel tube (22) is connected to a fixing tube (23); and the optical fiber passing tube (12) of the optical fiber quick-change structure can be sequentially passed through the sealing hole (211) and the fixing tube (23).

13. The endoscope according to claim 12, wherein: The rear end of the optical mirror channel tube (22) is provided with an adjustment component, the adjustment component including an optical fiber movable seat (241), the optical fiber movable seat (241) being adjustable in position along the axial direction of the optical mirror channel tube (22), and the optical fiber movable seat (241) being detachably connected to the optical fiber installation block (11) of the optical fiber quick-change structure.

14. The endoscope according to claim 13, wherein: The optical fiber movable seat (241) is provided with a mounting groove (2411), the optical fiber mounting block (11) is provided with a clamping portion (113), the clamping portion (113) can be detachably clamped and connected to the mounting groove (2411), the optical fiber movable seat (241) is installed with a screw (242), the optical fiber mounting block (11) is provided with a limiting groove (114), the limiting groove (114) is provided along the direction in which the clamping portion (113) is embedded in the mounting groove (2411), and, The top end of the screw (242) can abut against the inner wall of the limiting groove (114) when the clamping portion (113) is installed in the installation groove (2411).

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