A scope plug, an endoscope main unit, and an endoscope

Abstract

The embodiment of the application provides a mirror plug, an endoscope host and an endoscope, and relates to the technical field of endoscopes. A connecting part and a joint part arranged at one end of the connecting part are provided, the joint part is sequentially provided with a light guide assembly, a protrusion and a positioning groove from a direction away from the connecting part to a direction close to the connecting part, the light guide assembly is used for realizing plug-in cooperation with a first interface of an endoscope host, the protrusion is used for realizing clamping cooperation with a clamping groove on a second interface of the endoscope host, and the positioning groove is used for realizing clamping cooperation with a positioning protrusion on an inner wall surface of a third interface of the endoscope host. The embodiment of the application can realize the purpose of improving the connection reliability between the mirror plug and the endoscope host on the basis of not hindering smooth insertion of the mirror plug into the endoscope host.

Description

Technical Field

[0001] This application relates to the field of endoscope technology, and more particularly to an endoscope plug, an endoscope host, and an endoscope. Background Technology

[0002] Endoscopes are commonly used medical devices for internal observation. A stable connection between the endoscope and the endoscope host is crucial. The connection between the endoscope and the endoscope host can be achieved by inserting the endoscope plug into the interface of the endoscope host.

[0003] In related technologies, the positioning effect between the endoscope plug and the endoscope host is insufficient, and slight shaking is prone to occur between the endoscope plug and the endoscope host, which affects the reliability of the connection between the endoscope and the endoscope host and affects the transmission of various signals such as electrical signals and optical signals. Utility Model Content

[0004] This application provides an endoscope plug, an endoscope host, and an endoscope, which can improve the connection reliability between the endoscope plug and the endoscope host without hindering the smooth insertion of the endoscope plug into the endoscope host.

[0005] The first aspect of this application provides a scope plug, including a connecting portion and a connecting portion disposed at one end of the connecting portion. The connecting portion is provided with a light guide assembly, a protrusion, and a positioning groove in sequence from the direction away from the connecting portion to the direction near the connecting portion. The light guide assembly is used to perform plug-in engagement with a first interface of an endoscope host. The protrusion is used to perform snap-fit ​​engagement with a slot on a second interface of the endoscope host. The positioning groove is used to perform snap-fit ​​engagement with a positioning protrusion on the inner wall surface of a third interface of the endoscope host.

[0006] According to the endoscope plug described in the first aspect of this application, the light guide assembly, the protrusion, and the positioning groove are arranged sequentially from the direction away from the connecting part to the direction near the connecting part. This is such that during the process of inserting the endoscope plug into the endoscope host, the light guide assembly first engages with the first interface, then the protrusion engages with the slot, and then the positioning groove engages with the positioning protrusion. The completion of these three engagement processes at the same time indicates that the endoscope plug is fully inserted into the endoscope host. The positioning accuracy of the above three engagements increases sequentially, and complete positioning is achieved only when the endoscope plug is fully inserted into the endoscope host. This achieves the goal of improving the connection reliability between the endoscope plug and the endoscope host without hindering the smooth insertion of the endoscope plug into the endoscope host.

[0007] In one possible implementation, the joint includes a first boss away from the connecting portion and a second boss near the connecting portion, the projection of the first boss along the axial direction of the lens plug falling on the second boss, a light guide opening provided on the first boss, the light guide assembly disposed in the light guide opening, and the light guide assembly extending from the light guide opening.

[0008] In one possible implementation, the outer periphery of the first boss is provided with the protrusion.

[0009] In one possible implementation, the projection of the protrusion along the axial direction of the lens plug falls on the second protrusion.

[0010] In one possible implementation, the bump is provided with an optical fiber port, an optical fiber assembly is disposed in the optical fiber port, and the optical fiber assembly extends from the optical fiber port to form an optical fiber connector.

[0011] In one possible implementation, the first boss includes a first protrusion away from the second boss and a second protrusion near the second boss, the outer periphery of the second protrusion protruding from the first protrusion, and the bump protruding from the outer periphery of the second protrusion.

[0012] In one possible implementation, the outer periphery of the second boss forms a first mating surface, and the positioning groove is provided on the first mating surface.

[0013] A second aspect of this application provides an endoscope body, including an interface structure. The interface structure has a first interface, a second interface, and a third interface arranged sequentially from the inside to the outside along its axial direction. The first interface is used to connect with the light guide component of the endoscope plug. The inner wall surface of the second interface is provided with a slot for engaging with a protrusion of the endoscope plug. The inner wall surface of the third interface is provided with a positioning protrusion for engaging with a positioning groove of the endoscope plug.

[0014] According to the endoscope host described in the second aspect of this application, the first interface, the second interface, and the third interface are arranged sequentially from the inside to the outside, such that during the process of inserting the endoscope plug into the endoscope host, the first interface first engages with the light guide component, then the slot engages with the protrusion, and then the positioning protrusion engages with the positioning groove. The completion of these three engagement processes at the same time indicates that the endoscope plug is fully inserted into the endoscope host. The positioning accuracy of the above three engagements increases sequentially, and complete positioning is achieved only when the endoscope plug is fully inserted into the endoscope host. This achieves the goal of improving the connection reliability between the endoscope plug and the endoscope host without hindering the smooth insertion of the endoscope plug into the endoscope host.

[0015] In one possible implementation, the inner diameters of the first interface, the second interface, and the third interface increase sequentially. The inner wall surface of the second interface is recessed to form the slot, and the inner wall surface of the third interface forms a second mating surface, on which the positioning protrusion is provided.

[0016] A third aspect of this application provides an endoscope, including an endoscope plug and an endoscope main unit. The first interface in the endoscope main unit is used for positioning in conjunction with a light guide component in the endoscope plug. The slot in the endoscope main unit is used for positioning in conjunction with a protrusion in the endoscope plug. The positioning protrusion in the endoscope main unit is used for positioning in conjunction with a positioning groove in the endoscope plug.

[0017] According to the endoscope described in the third aspect of this application, the first interface, the second interface, and the third interface are arranged sequentially from the inside to the outside, and the light guide component, the protrusion, and the positioning groove are arranged sequentially along the axial direction, which can improve the connection reliability between the endoscope plug and the endoscope host without hindering the smooth insertion of the endoscope plug into the endoscope host. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] Figure 1 A schematic diagram of the structure of an endoscope provided according to an embodiment of this application is shown;

[0020] Figure 2 An exploded view of an endoscope provided according to an embodiment of this application is shown;

[0021] Figure 3 This illustration shows a schematic diagram of the connection between the endoscope body structure and the endoscope host in an embodiment of this application;

[0022] Figure 4 A schematic diagram of the structure of an endoscope host provided according to an embodiment of this application is shown;

[0023] Figure 5 A schematic diagram of a lens plug according to an embodiment of this application is shown;

[0024] Figure 6 A schematic diagram of an interface structure provided according to an embodiment of this application is shown;

[0025] Figure 7 This diagram illustrates another angle of an interface structure provided according to an embodiment of this application.

[0026] Figure label:

[0027] 100 - Connecting part;

[0028] 200 - Joint; 201 - First boss; 202 - Second boss; 203 - Air inlet assembly; 204 - Fiber optic assembly; 205 - First conductive spring; 210 - Light guide assembly; 220 - Protrusion; 230 - Positioning groove; 221a - Fiber optic port; 201a - Light guide port; 201b - Air inlet; 201c - First protrusion; 201d - Second protrusion; 204a - Fiber optic connector;

[0029] 10 - Lens plug;

[0030] 20 - Interface structure; 21 - First interface; 22 - Second interface; 23 - Third interface; 24 - Second conductive spring; 25 - Fiber optic interface; 26 - Air supply interface; 27 - Locking spring; 28 - Locking steel ball; 22a - Slot; 22b - First section; 22c - Second section; 23a - Positioning protrusion;

[0031] 30 - Endoscope main unit.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] An endoscope is a mechanical device with an image sensor, optical lens, and optical illumination. It allows for the observation, diagnosis, and treatment of organs such as the intestines and stomach. To assist the optical lens in capturing images, endoscopes typically also have interfaces for supplying water, air, or a mixture of both, as well as suction interfaces for drawing water or air. In short, an endoscope is a structure that integrates multiple functions.

[0035] As a core device for medical diagnosis and treatment, the stable connection between the endoscope body and the endoscope host is crucial. The endoscope body needs to be connected to the endoscope host through the endoscope body plug. The endoscope body, endoscope body plug, and endoscope host are the four important components of an endoscope.

[0036] When assembling an endoscope, the connection between the endoscope and the main unit is achieved by inserting the endoscope plug into the interface of the main unit. In related technologies, to achieve positioning between the endoscope plug and the main unit, the endoscope plug typically has a boss or a rib designed around the boss. The boss or rib engages with the interface of the main unit to achieve positioning. However, to prevent damage to related structures on the endoscope plug (such as light guides and fiber optic connectors), this positioning method is coarse. After inserting the endoscope plug into the main unit, there is still space for relative movement between the endoscope plug and the main unit. This results in insufficient positioning, making slight wobble possible and affecting the reliability of the connection between the endoscope and the main unit, thus impacting the transmission of various signals such as electrical and optical signals.

[0037] Based on the above situation and problems, this application provides an endoscope plug with three positioning structures along its axial direction. The positioning accuracy of the three positioning structures is progressively higher, which means that it can achieve the transformation from coarse positioning to fine positioning. This can improve the connection reliability between the endoscope plug and the endoscope host without hindering the smooth insertion of the endoscope plug into the endoscope host.

[0038] Therefore, this application embodiment also provides an endoscope host. The endoscope host in this application embodiment will mainly introduce the part of the endoscope host that needs to cooperate with the endoscope plug, that is, mainly introduce the interface structure in the endoscope host. The interface structure also forms a three-cooperation structure corresponding to the three positioning structures of the endoscope plug. The cooperation structure can be adapted to the above positioning structure for positioning.

[0039] Based on the aforementioned endoscope plug and endoscope host, this application embodiment also provides an endoscope with high connection reliability, stable signal transmission, and high performance.

[0040] Figure 1 A schematic diagram of the structure of an endoscope provided according to an embodiment of this application is shown; Figure 2 An exploded view of an endoscope provided according to an embodiment of this application is shown; Figure 3 This illustration shows a schematic diagram of the connection between the endoscope body structure and the endoscope host in an embodiment of this application; Figure 4A schematic diagram of the structure of an endoscope host provided according to an embodiment of this application is shown.

[0041] In the embodiments of this application, please refer to Figures 1 to 4 The endoscope includes a plug 10 and an endoscope main unit 30.

[0042] As can be seen from the following embodiments, the endoscope host 30 includes a first interface 21, a second interface 22, and a third interface 23. The aforementioned three-way mating structure can be formed by directly utilizing the first interface 21, the second interface 22, and the third interface 23, or by making relevant settings to the first interface 21, the second interface 22, and the third interface 23. The first interface 21, the second interface 22, and the third interface 23 can be disposed on the interface structure 20 of the endoscope host 30, which is exposed from one side of the endoscope host 30.

[0043] As can be seen from the following embodiments, the lens plug 10 includes a light guide component 210, a protrusion 220 and a positioning groove 230, which together form the above-mentioned three positioning structures.

[0044] Specifically, the first interface 21 can be positioned in conjunction with the light guide component 210, the inner wall surface of the second interface 22 can be provided with a slot 22a, which can be positioned in conjunction with the protrusion 220, and the inner wall surface of the third interface 23 is provided with a positioning protrusion 23a, which can be positioned in conjunction with the positioning groove 230.

[0045] Furthermore, as can be seen from the following embodiments, the inner diameters of the first interface 21, the second interface 22, and the third interface 23 increase sequentially, and the light guide assembly 210, the protrusion 220, and the positioning groove 230 are arranged sequentially along the axial direction, which can improve the connection reliability between the endoscope plug 10 and the endoscope host 30 without hindering the smooth insertion of the endoscope plug 10 into the endoscope host 30.

[0046] The following embodiments will describe the relevant structures of the endoscope plug 10 and the endoscope host 30 respectively.

[0047] Figure 5 A schematic diagram of the structure of a lens plug 10 provided according to an embodiment of this application is shown.

[0048] In this embodiment, the lens plug 10 includes a connecting portion 100 and a connecting portion 200 disposed at one end of the connecting portion 100.

[0049] It is understood that the connecting part 100 is the part of the endoscope plug 10 used to connect the endoscope body, and the connecting part 200 is the part of the endoscope plug 10 used to connect to the endoscope host 30.

[0050] The joint 200 is designed to be inserted into the interface structure 20 of the endoscope host 30, and the joint 200 can be designed as a columnar structure.

[0051] In this embodiment, the joint 200 is provided with a light guide assembly 210, a protrusion 220 and a positioning groove 230 in sequence from the direction away from the connecting part 100 to the direction near the connecting part 100.

[0052] The light guide component 210 can be configured with reference to related technologies. Its function is to guide light from the endoscope host 30 to the endoscope body. For example, the light guide component 210 may include a light guide rod and a light guide fiber disposed in the light guide rod. The light guide component 210 needs to extend beyond the joint 200 and have the longest extension length so that the light guide component 210 can enter the endoscope host 30 first. For example, the light guide component 210 can contact the first interface 21 of the endoscope host 30 first. In the embodiment of this application, the light guide component 210 is used to achieve plug-in cooperation with the first interface 21 of the endoscope host 30. That is, during the process of inserting the endoscope plug 10 into the endoscope host 30, the light guide component 210 will be inserted into the first interface 21 first.

[0053] As described above, the joint 200 is generally a columnar structure, and the protrusion 220 can be a structure extending from one side of the columnar structure. The specific structure of the protrusion 220 is not limited; for example, in some embodiments, the protrusion 220 can be a square or a fan-shaped block. It is understood that during the process of the aforementioned light guide component 210 being gradually inserted into the first interface 21, the protrusion 220 will gradually come into contact with the second interface 22 of the endoscope host 30. In this embodiment, the protrusion 220 is used to engage with the slot 22a on the second interface 22 of the endoscope host 30. That is, during the process of inserting the endoscope plug 10 into the endoscope host 30, the protrusion 220 will engage with the slot 22a as the light guide component 210 is gradually inserted into the first interface 21. The engagement precision between the protrusion 220 and the slot 22a is higher than the engagement precision between the light guide component 210 and the first interface 21, thereby improving the connection reliability between the endoscope plug 10 and the endoscope host 30.

[0054] During the insertion of the endoscope plug 10 into the endoscope host 30, the positioning groove 230 finally contacts the third interface 23 of the endoscope host 30. In this embodiment, the positioning groove 230 is used to engage with the positioning protrusion 23a on the inner wall of the third interface 23 of the endoscope host 30. That is, during the insertion of the endoscope plug 10 into the endoscope host 30, the positioning groove 230 engages with the positioning protrusion 23a as the light guide assembly 210 is gradually inserted into the first interface 21 and the protrusion 220 is gradually engaged into the slot 22a. The engagement precision between the positioning groove 230 and the positioning protrusion 23a is higher than that between the protrusion 220 and the slot 22a, which is higher than that between the light guide assembly 210 and the first interface 21 and between the protrusion 220 and the slot 22a. This further improves the connection reliability between the endoscope plug 10 and the endoscope host 30.

[0055] In this embodiment, the light guide assembly 210, the protrusion 220, and the positioning groove 230 are arranged sequentially from the direction away from the connecting part 100 to the direction near the connecting part 100. This allows the light guide assembly 210 to first engage with the first interface 21 during the process of inserting the endoscope plug 10 into the endoscope host 30. Then, the protrusion 220 engages with the slot 22a, and finally, the positioning groove 230 engages with the positioning protrusion 23a. The simultaneous completion of these three engagement processes indicates that the endoscope plug 10 is fully inserted into the endoscope host 30. The positioning accuracy of these three engagements increases sequentially, and full positioning is achieved only when the endoscope plug 10 is fully inserted into the endoscope host 30. This achieves the goal of improving the connection reliability between the endoscope plug 10 and the endoscope host 30 without hindering the smooth insertion of the endoscope plug 10 into the endoscope host 30.

[0056] In some embodiments, please refer to Figure 5 The joint 200 includes a first boss 201 away from the connecting part 100 and a second boss 202 near the connecting part 100. The projection of the first boss 201 along the axial direction of the lens plug 10 falls on the second boss 202. A light guide port 201a is provided on the first boss 201, and a light guide assembly 210 is provided in the light guide port 201a. The light guide assembly 210 extends out of the light guide port 201a.

[0057] The coverage area of ​​the first protrusion 201 is smaller than the coverage area of ​​the second protrusion 202. The first protrusion 201 and the second protrusion 202 can be arranged concentrically or eccentrically. The first protrusion 201 can be wrapped by the contour surface of the second protrusion 202.

[0058] The first protrusion 201 is further away from the connecting part 100 than the second protrusion 202, so that after the light guide assembly 210 extends out of the light guide port 201a, the light guide assembly 210 can be far away from the connecting part 100, thereby enabling the light guide assembly 210 to contact the first interface 21 of the endoscope host 30 first.

[0059] In some embodiments, please refer to Figure 5 The first protrusion 201 is also provided with an air inlet 201b, and an air inlet assembly 203 is provided in the air inlet 201b for introducing gas into the mirror body.

[0060] In some embodiments, please refer to Figure 5 The first protrusion 201 has the aforementioned protrusion 220 on its outer periphery. Therefore, the protrusion 220 is closer to the connecting part 100 than the light guide component 210, so that the engagement and positioning between the protrusion 220 and the slot 22a will be later than the engagement between the light guide component 210 and the first interface 21.

[0061] To facilitate smooth insertion between the endoscope plug 10 and the endoscope body, the projection of the protrusion 220 along the axial direction of the endoscope plug 10 falls on the second protrusion 202.

[0062] In some embodiments, please refer to Figure 5 The protrusion 220 is provided with an optical fiber port 221a, and an optical fiber assembly 204 is provided in the optical fiber port 221a. The optical fiber assembly 204 extends out of the optical fiber port 221a and forms an optical fiber connector 204a.

[0063] The fiber optic assembly 204 can be configured with reference to relevant technologies. For example, the fiber optic assembly may include a fiber optic socket and an imaging fiber disposed in the fiber optic socket. The fiber optic connector 204a is used to connect to the image processing unit in the endoscope host 30, so that image information in the endoscope can be transmitted to the endoscope host 30 via the imaging light.

[0064] In the above embodiment, the optical fiber assembly 204 is disposed in the protrusion 220, and the protrusion 220 can effectively protect the optical fiber assembly and prevent damage to the optical fiber assembly 204.

[0065] In some embodiments, please refer to Figure 5 The first protrusion 201 includes a first protrusion 201c away from the second protrusion 202 and a second protrusion 201d close to the second protrusion 202. The outer periphery of the second protrusion 201d protrudes from the first protrusion 201c, and the protrusion 220 protrudes from the outer periphery of the second protrusion 201d.

[0066] The first boss 201 is configured to include a first protrusion 201c and a second protrusion 201d. The outer diameter of the second protrusion 201d is larger than that of the first protrusion 201c, so that the protrusion 220 provided on the second protrusion 201d can be moved away from the first protrusion 201c. This can improve the fitting accuracy between the protrusion 220 and the slot 22a, and also make it easier for the protrusion 220 to fit with the slot 22a.

[0067] In addition, please refer to Figure 5 Since the second protrusion 201d protrudes from the first protrusion 201c, a first conductive spring 205 can be provided on the outer circumference of the second protrusion 201d. The first conductive spring 205 can be connected to the second conductive spring 24 in the endoscope host 30, thereby realizing the electrical connection between the endoscope body and the endoscope host 30.

[0068] In some embodiments, please refer to Figure 5 The outer periphery of the second protrusion 202 forms a first mating surface, which can be mated with the third interface 23 in the endoscope host 30. The aforementioned positioning groove 230 can be provided on the first mating surface.

[0069] In some specific embodiments, the number of positioning grooves 230 can be set to two or more, and correspondingly, the number of positioning protrusions 23a in the endoscope host 30 can also be set to two or more.

[0070] Other structures of the lens plug 10, such as various interfaces on the lens plug 10, can be set with reference to related technologies, and will not be described in detail in this embodiment.

[0071] Figure 6 A schematic diagram of an interface structure 20 provided according to an embodiment of this application is shown; Figure 7 This diagram shows a structural schematic of an interface structure 20 provided according to an embodiment of the present application from another angle.

[0072] In the embodiments of this application, please refer to Figure 6 and Figure 7 The endoscope host 30 includes an interface structure 20, which has a first interface 21, a second interface 22 and a third interface 23 arranged sequentially from the inside to the outside along its axial direction. The first interface 21 is used to connect with the light guide component 210 of the endoscope plug 10. The inner wall surface of the second interface 22 is provided with a slot 22a, which is used to engage with the protrusion 220 of the endoscope plug 10. The inner wall surface of the third interface 23 is provided with a positioning protrusion 23a, which is used to engage with the positioning groove 230 of the endoscope plug 10.

[0073] In this embodiment, the first interface 21, the second interface 22, and the third interface 23 are arranged sequentially from the inside out. This allows the first interface 21 to first engage with the light guide component 210 during the insertion of the endoscope plug 10 into the endoscope host 30. Then, the slot 22a engages with the protrusion 220, and the positioning protrusion 23a engages with the positioning groove 230. The simultaneous completion of these three engagement processes indicates that the endoscope plug 10 is fully inserted into the endoscope host 30. The positioning accuracy of these three engagements increases sequentially, and full positioning is achieved only when the endoscope plug 10 is fully inserted into the endoscope host 30. This achieves the goal of improving the connection reliability between the endoscope plug 10 and the endoscope host 30 without hindering the smooth insertion of the endoscope plug 10 into the endoscope host 30.

[0074] In some embodiments, please refer to Figure 6 The inner diameters of the first interface 21, the second interface 22 and the third interface 23 increase sequentially. The inner wall of the second interface 22 is recessed to form a slot 22a, and the inner wall surface of the third interface 23 forms a second mating surface, on which a positioning protrusion 23a is provided.

[0075] Corresponding to the configuration of the first boss 201 in the above embodiment, the second interface 22 may include a first segment 22b and a second segment 22c. The inner diameter of the second segment 22c is larger than the inner diameter of the first segment 22b, so that the first segment 22b can cooperate with the first protrusion 201c in the first boss 201, and the second segment 22c can cooperate with the second protrusion 201d in the first boss 201.

[0076] In addition, a second conductive spring 24 can be provided on the inner wall surface of the second interface 22 segment. The second conductive spring 24 is used to form an electrical connection with the aforementioned first conductive spring 205.

[0077] In some embodiments, please refer to Figure 6 A fiber optic interface 25 is provided in the slot 22a, so that after the endoscope plug 10 is inserted into the endoscope host 30, the fiber optic assembly 204 on the protrusion 220 can be inserted into the fiber optic interface 25.

[0078] In some embodiments, please refer to Figure 6 An air supply interface 26 is also provided on one side of the first interface 21, which is used to connect with the air intake assembly 203.

[0079] In some embodiments, please refer to Figure 6Inside the interface structure 20, there is also a locking component, which may include a locking spring 27, a locking steel ball 28, etc., to provide locking force to the lens plug 10 so that the lens plug 10 is stably inserted into the interface structure 20.

[0080] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0081] In the description of this application, it should be understood that the terms "comprising" and "having" and any variations thereof used in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0082] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the connection within two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A lens plug, characterized in that, The device includes a connecting portion and a connecting portion disposed at one end of the connecting portion. The connecting portion is provided with a light guide assembly, a protrusion, and a positioning groove in sequence from the direction away from the connecting portion to the direction near the connecting portion. The light guide assembly is used to insert and cooperate with the first interface of the endoscope host. The protrusion is used to engage with the slot on the second interface of the endoscope host. The positioning groove is used to engage with the positioning protrusion on the inner wall surface of the third interface of the endoscope host.

2. The lens plug according to claim 1, characterized in that, The joint includes a first boss away from the connecting part and a second boss near the connecting part. The projection of the first boss along the axial direction of the lens plug falls on the second boss. A light guide is provided on the first boss. The light guide assembly is disposed in the light guide and extends out from the light guide.

3. The lens plug according to claim 2, characterized in that, The first boss has a protrusion on its outer periphery with the protrusion.

4. The lens plug according to claim 3, characterized in that, The projection of the protrusion along the axial direction of the lens plug falls on the second protrusion.

5. The lens plug according to claim 4, characterized in that, The protrusion is provided with an optical fiber port, and an optical fiber assembly is provided in the optical fiber port. The optical fiber assembly extends out of the optical fiber port and forms an optical fiber connector.

6. The lens plug according to claim 4, characterized in that, The first boss includes a first protrusion away from the second boss and a second protrusion close to the second boss, the outer periphery of the second protrusion protrudes from the first protrusion, and the protrusion protrudes from the outer periphery of the second protrusion.

7. The lens plug according to claim 3, characterized in that, The outer periphery of the second boss forms a first mating surface, and the positioning groove is provided on the first mating surface.

8. An endoscope main unit, characterized in that, The device includes an interface structure in which a first interface, a second interface, and a third interface are sequentially arranged from the inside to the outside along its axial direction. The first interface is used to connect with the light guide component of the lens plug. The inner wall of the second interface is provided with a slot for engaging with a protrusion of the lens plug. The inner wall of the third interface is provided with a positioning protrusion for engaging with a positioning groove of the lens plug.

9. The endoscope host according to claim 8, characterized in that, The inner diameters of the first interface, the second interface, and the third interface increase sequentially. The inner wall surface of the second interface is recessed to form the slot, and the inner wall surface of the third interface forms a second mating surface. The positioning protrusion is provided on the second mating surface.

10. An endoscope, characterized in that, The device includes a scope plug according to any one of claims 1 to 7 and an endoscope host according to any one of claims 8 to 9, wherein the first interface in the endoscope host is used to cooperate with the light guide component in the scope plug for positioning, the slot in the endoscope host is used to cooperate with the protrusion in the scope plug for positioning, and the positioning protrusion in the endoscope host is used to cooperate with the positioning groove in the scope plug for positioning.

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