Auxiliary eyepiece centering and clamping mechanism, optical coupler, and endoscope system

Abstract

The present application discloses an auxiliary eyepiece centering and clamping mechanism, an optical coupler, and an endoscope system, and relates to the technical field of medical devices. The clamping mechanism comprises a mounting base and a clamp assembly, wherein the mounting base is provided with guide slots, and the guide slots are linear inclined slots; the clamp assembly comprises at least two clamps distributed along the circumferential direction of the mounting base, the clamping ends of the clamps are slidably mounted within the guide slots, an outer housing is further provided on the outside of the clamp assembly, and the fixed ends of the clamps are fixedly connected to the outer housing; the clamping mechanism further comprises a drive assembly disposed on the mounting base, the drive assembly being configured to drive the outer housing to rotate and to place the clamp assembly in an open state or a closed state. The clamps of the present application can not only clamp an eyepiece cover by moving in the radial direction, but can also cooperatively apply force to the eyepiece cover through combined movement in the circumferential direction and the radial direction, thereby driving the eyepiece cover to rotate and achieving the effect of centering the eyepiece cover.

Description

Auxiliary eyepiece centering clamping mechanism, optical coupler and endoscope system Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an auxiliary eyepiece centering clamping mechanism, an optical coupler, and an endoscope system. Background Technology

[0002] An endoscopic system includes an endoscope and a camera. The endoscope is inserted into a cavity to transmit light into and receive light from the cavity. The endoscope is also connected to the camera, which captures video or images based on the light received from the cavity by the endoscope. The camera is also connected to a camera control unit, which processes the video or images captured by the camera. Typically, the endoscope's eyepiece and the camera are connected via an optical coupler. The end of the optical coupler has a clamp assembly, which allows the endoscope eyepiece to be fixed or removed by opening and closing the clamp assembly.

[0003] The alignment between the eyepiece and camera in an endoscope directly affects the optical path transmission. If the eyepiece shifts, the optical path will also shift. Even a slight shift can degrade image quality, while a severe shift can cause functional and safety issues. Therefore, to ensure the performance of the endoscope system, the optical axis must be calibrated during installation, and the alignment of the eyepiece and camera must be checked regularly.

[0004] In related technologies, optical couplers have a slanted groove on the outer shell. One end of the clamping assembly is mounted on the base, and the other end slides within the slanted groove. Rotating the outer shell drives the clamping assembly to slide, thereby fixing or removing the eyepiece. However, the inventors have found that these optical couplers only clamp the eyepiece and lack the ability to assist in eyepiece alignment. Therefore, providing an optical coupler that can assist in eyepiece alignment is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] This application discloses an auxiliary eyepiece alignment clamping mechanism, an optical coupler, and an endoscope system to solve the technical problem that optical couplers in related technologies cannot achieve auxiliary eyepiece alignment.

[0006] To solve the above problems, this application adopts the following technical solution:

[0007] The first aspect of this application provides an auxiliary eyepiece centering clamping mechanism.

[0008] This application provides an auxiliary eyepiece centering clamping mechanism for an optical coupler. The clamping mechanism includes a mounting base and a clamping assembly. The mounting base has a guide groove, which is a straight inclined groove. The clamping assembly includes at least two clamps distributed along the circumferential direction of the mounting base. The clamping ends of the clamps are slidably mounted in the guide groove. A housing is also provided outside the clamping assembly, and the fixed ends of the clamps are fixedly connected to the housing. The clamping mechanism also includes a driving assembly disposed on the mounting base. The driving assembly is used to drive the housing to rotate and to enable the clamping assembly to have an open state and a closed state.

[0009] A second aspect of this application provides an optical coupler.

[0010] The optical coupler of this application includes a clamping mechanism and an optical mechanism. The clamping mechanism is the auxiliary eyepiece centering clamping mechanism described in any of the technical solutions of this application, and the optical mechanism is disposed on the mounting base of the clamping mechanism.

[0011] The third aspect of this application provides an endoscope system.

[0012] The endoscope system of this application includes an endoscope, a camera, and an optical coupler. The optical coupler is the optical coupler described in any of the technical solutions of this application. The optical coupler is used to detachably couple the endoscope to the camera.

[0013] The technical solution adopted in this application can achieve the following beneficial effects:

[0014] Firstly, the auxiliary eyepiece centering clamping mechanism of this application includes a clamping end that is slidably mounted in a guide groove. A housing is also provided outside the clamping assembly, and the fixed end of the clamp is fixedly connected to the housing. A drive assembly can drive the housing to rotate, thereby causing the clamp to rotate circumferentially. Taking the fixed eyepiece as an example, during the circumferential rotation of the clamp, the clamping end, through its interaction with the guide groove, can also drive the clamping end to move radially. Therefore, not only can the clamping end hold the eyepiece cover by moving radially, but the clamping end can also exert force on the eyepiece cover through the coordinated movement of the circumferential and radial directions, driving the eyepiece cover to rotate and achieving the eyepiece cover centering effect.

[0015] The auxiliary eyepiece centering clamping mechanism of this application solves the technical problem that optical couplers in related technologies cannot achieve auxiliary eyepiece centering.

[0016] Secondly, the auxiliary eyepiece centering clamping mechanism of this application has a straight inclined groove as the guide groove. When the housing drives the clamp to rotate in the circumferential direction, the inclined groove is conducive to driving the clamping end of the clamp to move in the radial direction. Moreover, the inclined groove is straight, which helps to reduce the resistance of the clamping end sliding in the guide groove. Thus, when force is applied to the drive component, it is easy to operate and the housing can be driven to rotate without excessive force. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the optical coupler and eyepiece cover in an embodiment of this application;

[0018] Figure 2 is a schematic diagram of an optical coupler according to an embodiment of this application;

[0019] Figure 3 is a first partial schematic diagram of the optical coupler according to an embodiment of this application;

[0020] Figure 4 is a partial schematic diagram of the outer casing according to an embodiment of this application;

[0021] Figure 5 is a second partial schematic diagram of the optical coupler according to an embodiment of this application;

[0022] Figure 6 is a third partial schematic diagram of the optical coupler according to an embodiment of this application;

[0023] Figure 7 is a schematic diagram of the mounting base according to an embodiment of this application;

[0024] Figure 8 is a schematic diagram of the clamps according to an embodiment of this application;

[0025] Figure 9 is a schematic diagram of the slider in an embodiment of this application.

[0026] In the figure: 110, mounting base; 111, guide groove; 112, mounting chamber; 113, mounting groove; 1131, gap; 121, clamp; 1211, clamping end; 1212, fixing end; 1213, first protrusion; 1214, second protrusion; 130, outer shell; 131, mounting hole; 132, fixing element; 133, limiting groove; 140, drive assembly; 141, slider; 142, first toggle; 143, elastic element; 144, second toggle; 200, knob assembly; 300, eyepiece cover. Detailed Implementation

[0027] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0028] In the various embodiments of this application, "near end" and "far end" refer to the distance of each component from the user in the usage environment. The end closer to the user is designated as the "near end", and the end farther from the user is designated as the "far end".

[0029] In related technologies, optical couplers feature a slanted groove on the housing. The clamping assembly includes multiple clamping members, with the fixed end of each member mounted on a base and the clamping end slidably positioned within the slanted groove. By rotating the housing, the circumferential movement of the slanted groove drives the clamping end of the clamping member to move radially towards the base, thereby fixing or removing the eyepiece. However, in this type of optical coupler, the clamping end of the clamping member only experiences radial movement during clamping, thus only achieving the function of clamping the eyepiece and lacking the effect of assisting in eyepiece alignment.

[0030] Therefore, this application provides an auxiliary eyepiece centering clamping mechanism. By enabling the clamping member to have circumferential displacement in addition to radial displacement during the clamping process, the eyepiece cover can be driven to rotate slightly through the coordinated radial and circumferential movements of the clamping member, thereby achieving the effect of auxiliary eyepiece centering.

[0031] The auxiliary eyepiece centering clamping mechanism, optical coupler, and endoscope system provided in this application will be described in detail below with reference to Figures 1 to 9, through specific embodiments and application scenarios.

[0032] The first aspect of this embodiment describes in detail the auxiliary eyepiece centering clamping mechanism.

[0033] This embodiment uses an auxiliary eyepiece centering clamping mechanism within an optical coupler. The structure of the optical coupler is shown in Figures 1 and 2. The optical coupler is a device connecting the endoscope and the camera, used to achieve signal transmission between the endoscope and the camera. Specifically, the distal end of the endoscope is inserted into the cavity to be inspected, and the proximal end of the endoscope is connected to the camera via the optical coupler. The clamping mechanism is used to clamp the endoscope to achieve a stable connection between the endoscope and the camera. The clamping mechanism is particularly used to clamp the eyepiece cover 300 of the endoscope to achieve the connection between the endoscope and the camera, as shown in Figure 1.

[0034] This embodiment of the auxiliary eyepiece centering clamping mechanism includes a mounting base 110. The mounting base 110 provides a mounting foundation for the remaining components. For example, the mounting base 110 provides a mounting foundation for the clamp assembly, the housing 130, and the drive assembly 140, as shown in Figures 2 and 3. In some embodiments, the mounting base 110 is provided with a guide groove 111, which is a straight inclined groove. As shown in Figure 7, the guide groove 111 described in this embodiment as a straight inclined groove means that the path of the guide groove 111 from one end to the other is a straight line, and the distance of the guide groove 111 from one end to the other is different from the inner wall of the mounting base 110.

[0035] This embodiment of the auxiliary eyepiece centering clamping mechanism also includes a clamping assembly. The clamping assembly is used to clamp the eyepiece cover 300. In some embodiments, the clamping assembly includes at least two clamps 121. Exemplarily, the clamping assembly includes three clamps 121, which are distributed along the circumferential direction of the mounting base 110, so that the eyepiece cover 300 can be clamped in the circumferential direction by the three clamps 121, as shown in FIG3.

[0036] As shown in Figure 3, the clamp 121 has two ends, one of which is a clamping end 1211, and the clamping ends 1211 of multiple clamps 121 are used together to clamp the eyepiece cover 300; the other is a fixing end 1212, which is used to fix the clamp 121. In some embodiments, the clamping end 1211 is slidably mounted in the guide groove 111. A housing 130 is also provided outside the clamp assembly, and the fixing end 1212 is fixedly connected to the housing 130.

[0037] The auxiliary eyepiece centering clamping mechanism in this embodiment also includes a drive assembly 140, as shown in Figure 3. The drive assembly 140 is used to drive the clamp assembly to move. In some embodiments, the drive assembly 140 is disposed on the mounting base 110, and the drive assembly 140 is used to drive the housing 130 to rotate, thereby driving the clamp 121 to rotate through the rotation of the housing 130, so that the clamp assembly has an open state and a closed state.

[0038] For example, when the drive assembly 140 drives the housing 130 to rotate in a first direction, the clamping end 1211 of the clamp 121 moves towards the center of the mounting base 110, thereby clamping the eyepiece cover 300; conversely, when the drive assembly 140 drives the housing 130 to rotate in a second direction, the clamping end 1211 of the clamp 121 moves away from the center of the mounting base 110, thereby removing the eyepiece cover 300. The second direction is the opposite of the first direction. For example, the first direction is the counterclockwise direction shown in FIG. 3, and the second direction is the clockwise direction shown in FIG. 3.

[0039] In this embodiment, the auxiliary eyepiece centering clamping mechanism can drive the housing 130 to rotate via the drive component 140, thereby causing the clamp 121 to rotate circumferentially. Taking the fixed eyepiece cover 300 as an example, during the circumferential rotation of the clamp 121, the clamping end 1211 can also be driven to move radially through the cooperation between the clamping end 1211 and the guide groove 111. Thus, not only can the eyepiece cover 300 be clamped by the radial movement of the clamp 121, but the clamp 121 can also apply force to the eyepiece cover 300 through the coordinated movement of the circumferential and radial directions, driving the eyepiece cover 300 to rotate and achieving the centering effect of the eyepiece cover 300. This solves the problem that optical couplers in related technologies cannot achieve auxiliary eyepiece centering.

[0040] In addition, the guide groove 111 is a straight inclined groove. When the housing 130 drives the clamp 121 to rotate in the circumferential direction, the inclined groove is conducive to driving the clamping end 1211 of the clamp 121 to move in the radial direction. Moreover, the inclined groove is straight, which helps to reduce the resistance of the clamping end 1211 sliding in the guide groove 111. Thus, when force is applied to the drive assembly 140, it is easy to operate and the housing 130 can be driven to rotate without excessive force.

[0041] In some embodiments, the clamping end 1211 is provided with a first protrusion 1213, which is installed in the guide groove 111, as shown in Figures 3 and 8. Preferably, the outer diameter of the first protrusion 1213 is less than or equal to the opening width of the guide groove 111, so that the first protrusion 1213 can slide easily in the guide groove 111, reducing the sliding resistance of the first protrusion 1213 in the guide groove 111.

[0042] In some embodiments, the guide groove 111 has a first end and a second end. The first end is the position of the first protrusion 1213 within the guide groove 111 when the clamp assembly is in the open state, and the second end is the position of the first protrusion 1213 within the guide groove 111 when the clamp assembly is in the closed state. From the first end to the second end, the distance between the guide groove 111 and the inner wall of the mounting base 110 gradually decreases. With this arrangement, when the clamp 121 rotates in the circumferential direction, the clamping end 1211 can be driven to move in the radial direction through the guide groove 111.

[0043] It should be noted that the first end and the second end do not necessarily refer to the end positions of the guide groove 111, but can be any position in the guide groove 111.

[0044] In some embodiments, a second protrusion 1214 is provided on one of the fixed end 1212 and the outer casing 130, and a mounting hole 131 is provided on the other of the fixed end 1212 and the outer casing 130. The second protrusion 1214 is fixedly installed in the mounting hole 131. For example, the second protrusion 1214 is interference-fitted with the mounting hole 131, thereby realizing the fixed connection between the outer casing 130 and the clamp 121. Figure 4 shows a schematic diagram of the outer casing 130 having a mounting hole 131, and Figure 8 shows a schematic diagram of the fixed end 1212 having a second protrusion 1214.

[0045] In some embodiments, the mounting base 110 has a mounting chamber 112 extending in the axial direction, as shown in FIG7. The mounting chamber 112 is used to accommodate optical components, and the mounting base 110 is a one-piece structure, with a guide groove 111 located on the end face of the mounting base 110. The mounting base 110 can be used not only to mount clamp assemblies but also to mount optical components, and the portion of the mounting base 110 used to mount the clamp assembly and the portion used to mount the optical component are a one-piece structure, as shown in FIG7. Exemplarily, the mounting base 110 can be integrally molded by injection molding or other methods.

[0046] In this embodiment, the clamping mechanism and the mounting base 110 are integral structures. When assembling the optical coupler, the steps for assembling the clamping component and the optical component can be reduced, thus eliminating assembly errors. At the same time, it can also eliminate the sealing problems at the connection between the clamping component and the optical component. In addition, it can improve the integration and compactness of the optical coupler.

[0047] Not limited to this, the mounting base 110 may also be a split structure. The mounting base 110 includes a base for mounting the clamp assembly and a lens barrel for mounting the optical assembly. The base and the lens barrel are connected by threads.

[0048] In some embodiments, the drive assembly 140 includes a slider 141 and a first toggle 142, as shown in Figures 3, 5, and 9. The slider 141 is slidably mounted on the mounting base 110 and is also fixedly connected to the housing 130. Exemplarily, the slider 141 and housing 130 are fixedly connected by a fastener 132, as shown in Figure 6. The first toggle 142 is fixedly connected to the slider 141 and is used to drive the slider 141 to slide. Exemplarily, the first toggle 142 is cylindrical, and it is threadedly connected to the slider 141. When force is applied to the first toggle 142, it drives the slider 141 to move, thereby causing the housing 130 to move and consequently causing the clamp 121 to rotate.

[0049] In some embodiments, the drive assembly 140 further includes an elastic element 143, as shown in Figures 3, 5, and 6. The elastic element 143 is located at the end of the slider 141, and can undergo elastic deformation based on the sliding of the slider 141. Exemplarily, the elastic element 143 is a spring. The elastic deformation of the elastic element 143 can be from a natural state to a compressed state or from a natural state to a stretched state; no limitation is made here.

[0050] Taking the elastic element 143 located in front of the slider 141 in the sliding direction as an example, when no force is applied to the first switch 142, the elastic element 143 is in its natural state. By pressing the slider 141, the elastic element 143 can be compressed. Conversely, when the force applied to the first switch 142 is released, the restoring force of the elastic element 143 can be applied to the slider 141, causing the slider 141 to return to its original position.

[0051] In some embodiments, the elastic element 143 and the first toggle switch 142 are located at the same end of the slider 141, making the distance between the first toggle switch 142 and the elastic element 143 smaller. This facilitates the transmission of the force applied to the first toggle switch 142 to the elastic element 143, thereby improving the response sensitivity of the elastic element 143. As shown in FIG6, when the elastic element 143 is located at the front end of the slider 141, the first toggle switch 142 is fixed on the end of the slider 141 near the elastic element 143.

[0052] In some embodiments, a limiting groove 133 is also provided on the housing 130, as shown in FIG2. The drive assembly 140 further includes a second toggle 144, which is located within the limiting groove 133 and is also fixedly connected to the mounting base 110, as shown in FIG2, FIG3, FIG5 and FIG6. Through the cooperation of the second toggle 144 and the limiting groove 133, the displacement of the housing 130 in the circumferential direction of the mounting base 110 can be limited, thereby limiting the displacement of the slider 141 in the circumferential direction of the mounting base 110.

[0053] In some embodiments, the mounting base 110 is provided with a mounting groove 113, and the slider 141 and the elastic element 143 are mounted in the mounting groove 113, as shown in Figures 3, 5, and 6. A gap 1131 exists between the end of the slider 141 away from the elastic element 143 and the sidewall of the mounting groove 113, as shown in Figure 6. Exemplarily, the arc length of the mounting groove 113 is greater than the sum of the arc length of the slider 141 and the initial length of the elastic element 143, so that when one end of the elastic element 143 abuts against the inner wall of one side of the mounting groove 113, a gap 1131 can be formed between the other end of the slider 141 and the inner wall of the other side of the mounting groove 113, as shown in Figure 6. The initial state of the elastic element 143 can be either a natural state or a compressed state.

[0054] In this embodiment, the clamping mechanism has a gap 1131 between the end of the slider 141 away from the elastic member 143 and the side wall of the mounting groove 113. When the slider 141 and the elastic member 143 are placed into the mounting groove 113, the gap 1131 can provide clearance space for the slider 141. After the slider 141 is moved toward the gap 1131, the installation space of the elastic member 143 can be increased. The slider 141 does not cause compression on the elastic member 143 or the compression force on the elastic member 143 is very small, so that the elastic member 143 is not easy to fall out during the installation process.

[0055] The second aspect of this embodiment describes the optical coupler in detail.

[0056] The optical coupler of this embodiment includes a clamping mechanism. The clamping mechanism is an auxiliary eyepiece centering clamping mechanism of any of the technical solutions in the first aspect of this embodiment.

[0057] The optical coupler of this embodiment further includes an optical mechanism. The optical mechanism is disposed on the mounting base 110 of the clamping mechanism. Exemplarily, the optical mechanism includes an optical component mounted within the mounting base 110 and a knob assembly 200 sleeved outside the mounting base 110, as shown in Figures 1-3, 5, and 6. The structures of the optical component and the knob assembly 200 can be the same as those in the prior art, and will not be described in detail here.

[0058] The optical coupler of this embodiment has an auxiliary eyepiece alignment clamping mechanism according to any of the technical solutions in this embodiment. When the endoscope and the camera are connected by the optical coupler, the alignment effect between the eyepiece and the camera can be improved.

[0059] The third aspect of this embodiment provides a detailed description of the endoscope system.

[0060] The endoscope system of this embodiment includes an endoscope, a camera, and an optical coupler. The optical coupler is used to detachably couple the endoscope to the camera. The optical coupler is the optical coupler of any of the technical solutions in the second aspect of this embodiment. The structure of the endoscope and the camera can be the same as that of the prior art, and will not be described again here. For example, the endoscope is a rigid endoscope.

[0061] The endoscope system of this embodiment has an optical coupler according to any of the technical solutions in this embodiment. When the endoscope is connected to the camera through the optical coupler, the alignment effect between the eyepiece and the camera can be improved.

[0062] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0063] Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0064] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. An auxiliary eyepiece centering clamping mechanism for an optical coupler, characterized in that, The clamping mechanism includes a mounting base (110) and a clamp assembly, wherein, The mounting base (110) is provided with a guide groove (111), which is a straight inclined groove; The clamp assembly includes at least two clamps (121), which are distributed along the circumferential direction of the mounting base (110). The clamping end (1211) of the clamp (121) is slidably installed in the guide groove (111). The clamp assembly is also provided with a housing (130), and the fixing end (1212) of the clamp (121) is fixedly connected to the housing (130). The clamping mechanism further includes a drive assembly (140) disposed on the mounting base (110). The drive assembly (140) is used to drive the housing (130) to rotate and to give the clamp assembly an open state and a closed state.

2. The auxiliary eyepiece centering clamping mechanism according to claim 1, characterized in that, The clamping end (1211) is provided with a first protrusion (1213), the outer diameter of the first protrusion (1213) is less than or equal to the opening width of the guide groove (111), and the first protrusion (1213) is installed in the guide groove (111).

3. The auxiliary eyepiece centering clamping mechanism according to claim 2, characterized in that, The guide groove (111) has a first end and a second end. The first end refers to the position of the first protrusion (1213) within the guide groove (111) when the clamp assembly is in the open state, and the second end refers to the position of the first protrusion (1213) within the guide groove (111) when the clamp assembly is in the closed state. Furthermore, from the first end to the second end, the distance between the guide groove (111) and the inner wall of the mounting base (110) gradually decreases.

4. The auxiliary eyepiece centering clamping mechanism according to claim 2, characterized in that, One of the fixed end (1212) and the outer shell (130) is provided with a second protrusion (1214), and the other of the fixed end (1212) and the outer shell (130) is provided with a mounting hole (131). The second protrusion (1214) is fixedly installed in the mounting hole (131).

5. The auxiliary eyepiece centering clamping mechanism according to claim 1, characterized in that, The mounting base (110) has a mounting chamber (112) that extends through the axial direction. The mounting chamber (112) is used to accommodate optical components. The mounting base (110) is an integral structure. The guide groove (111) is located on the end face of the mounting base (110).

6. The auxiliary eyepiece centering clamping mechanism according to any one of claims 1 to 5, characterized in that, The drive assembly (140) includes a slider (141) and a first dial (142). The slider (141) is slidably mounted on the mounting base (110). The slider (141) is also fixedly connected to the outer shell (130). The first knob (142) is fixedly connected to the slider (141) and is used to drive the slider (141) to slide.

7. The auxiliary eyepiece centering clamping mechanism according to claim 6, characterized in that, The drive assembly (140) further includes an elastic element (143) located at the end of the slider (141). The elastic element (143) can undergo elastic deformation based on the sliding of the slider (141). The elastic element (143) and the first toggle (142) are located at the same end of the slider (141).

8. The auxiliary eyepiece centering clamping mechanism according to claim 7, characterized in that, The mounting base (110) is provided with a mounting groove (113), the slider (141) and the elastic element (143) are installed in the mounting groove (113), and there is a gap (1131) between the end of the slider (141) away from the elastic element (143) and the side wall of the mounting groove (113).

9. An optical coupler, characterized in that, It includes a clamping mechanism and an optical mechanism, wherein the clamping mechanism is the auxiliary eyepiece centering clamping mechanism according to any one of claims 1 to 8, and the optical mechanism is disposed on the mounting base (110) of the clamping mechanism.

10. An endoscope system, characterized in that, The device includes an endoscope, a camera, and an optical coupler, wherein the optical coupler is the optical coupler of claim 9, and the optical coupler is used to detachably couple the endoscope to the camera.

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