Endoscope tip structure

Abstract

The utility model relates to medical instrument technical field, specifically disclose a kind of endoscope head end structure, the head end structure includes head end seat and protective cover;The lens end of head end seat is equipped with first installation cavity and second installation cavity, second installation cavity is adjacently arranged with first installation cavity, camera component is located in first installation cavity, and lighting component is located in second installation cavity;Protective cover is sealingly connected in head end seat, and at least cover first installation cavity and second installation cavity;The material of the region that head end seat, protective cover cover first installation cavity and protective cover cover second installation cavity is all different.The utility model in the setting of protective cover, avoid the shortcoming that camera component and lighting component are easily scratched in open type, can carry out the barrier to mucus when operation, prevent camera component and lighting component adhere mucus, different region of head end seat, protective cover and protective cover is set as different material simultaneously, enhance the function of each part.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an endoscope end structure. Background Technology

[0002] A medical endoscope is a precision medical device used to directly observe the internal cavities or organs of the human body. It is a medical device that integrates optical imaging, mechanical control and electronic technology. It enters the body through natural orifices or tiny incisions, allowing doctors to observe the internal structure in real time and perform operations such as diagnosis, treatment or minimally invasive surgery.

[0003] The endoscope headstock is the core structural component of the endoscope's tip, primarily responsible for optical imaging, instrument guidance, and functional control. In the current endoscope field, the design and manufacturing processes of endoscope headstocks are constantly evolving. Existing endoscope headstocks mostly use a single material. Among them, metal materials (such as stainless steel) are often used in scenarios requiring high structural stability due to their high strength and rigidity. However, processing metal materials requires specialized equipment and processes, such as cutting, grinding, and welding, which are not only complex but also costly. Furthermore, the opacity of metal itself cannot meet the need for direct observation of the endoscope's internal structure in certain situations.

[0004] While headpieces made of common plastics (such as polypropylene) are inexpensive and easy to mold, their mechanical properties are limited. Under frequent external forces or prolonged use, they are prone to wear and breakage, leading to a shortened lifespan. Furthermore, common plastics have relatively poor biocompatibility, potentially posing safety risks in medical applications.

[0005] Currently, medical endoscopes have lighting and camera components mounted on their headpieces. However, in existing technologies, the lens surface is exposed and the viewing window is open, making it easy for mucus to adhere to it. Furthermore, the open viewing window is prone to sharp points that can scratch the skin. The lighting and camera components are also very susceptible to mucus adhesion during surgery, which can affect the surgeon's operation.

[0006] Current endoscope mounts made of a single material cannot simultaneously meet multiple performance requirements such as high strength, high wear resistance, good biocompatibility, and transparency. Utility Model Content

[0007] The purpose of this invention is to provide an endoscope end structure to solve the problem that the existing single-material headstock cannot meet multiple needs at the same time, and the lighting and camera components on the headstock are easily adhered to by mucus during surgery, thus affecting the surgeon's operation.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] On one hand, this utility model provides an endoscope lens end structure capable of mounting a camera assembly and an illumination assembly, the end structure comprising:

[0010] The head-end base has a first mounting cavity and a second mounting cavity at its lens end. The second mounting cavity is adjacent to the first mounting cavity. The camera assembly is disposed in the first mounting cavity, and the lighting assembly is disposed in the second mounting cavity.

[0011] A protective cover, which is sealed to the head end seat and at least covers the first mounting cavity and the second mounting cavity;

[0012] The headstock, the portion of the protective cover covering the first mounting cavity, and the portion of the protective cover covering the second mounting cavity are all made of different materials.

[0013] As an alternative to the above-mentioned head end structure, the head end base is made of opaque plastic, the portion of the protective cover covering the first mounting cavity is made of transparent plastic, and the portion of the protective cover covering the second mounting cavity is made of transparent plastic mixed with a light diffusing agent.

[0014] As an alternative to the aforementioned head-end structure, the protective cover includes a first window and a second window. The first window is sealed to the head-end base and covers the first mounting cavity. The outer edge of the first window forms a curved surface, and the first window is used to isolate the camera component from the outside world. The second window is sealed to the head-end base and covers the second mounting cavity. The outer edge of the second window forms a curved surface, and the second window is used to isolate the lighting component from the outside world.

[0015] As an alternative to the above-mentioned head-end structure, the first window includes a first head end and a first side end that are connected to each other, and a portion of the first mounting cavity extends through the side end of the head-end seat; within the first mounting cavity, the first head end is sealed to the lens end of the head-end seat, and the first side end is sealed to the side end of the head-end seat.

[0016] As an alternative to the above-mentioned head end structure, the first head end protrudes from the head end seat towards the lens end side of the head end seat, and the connection between the first head end and the lens end, as well as the connection between the first head end and the first side end, are both provided with inclined slopes.

[0017] As an alternative to the above-mentioned head end structure, the inner wall of the first mounting cavity is recessed to form an intersecting first embedding groove and a second embedding groove, and the first side end has an intersecting first inlay part and a second inlay part, the first inlay part being embedded in the first embedding groove and the second inlay part being embedded in the second embedding groove.

[0018] As an alternative to the above-mentioned head end structure, the second window includes a second head end and a second side end that are connected to each other, and a portion of the second mounting cavity extends through the side end of the head end seat; within the second mounting cavity, the second head end is sealed to the lens end of the head end seat, and the second side end is sealed to the side end of the head end seat.

[0019] As an alternative to the above-mentioned head end structure, the lens end of the head end seat is also provided with a positioning groove, one end of which is connected to the second mounting cavity, and the second head end is provided with a positioning protrusion, which is embedded in the positioning groove.

[0020] As an alternative to the above-mentioned head end structure, the inner wall of the second mounting cavity is recessed to form an intersecting third embedding groove and a fourth embedding groove, and the second side end has an intersecting third inlay part and a fourth inlay part, the third inlay part being embedded in the third embedding groove and the fourth inlay part being embedded in the fourth embedding groove.

[0021] As an alternative to the aforementioned head end structure, both the first and second windows are integrally formed with the head end base through secondary injection molding.

[0022] The beneficial effects of this utility model are as follows:

[0023] The endoscope lens structure includes a headstock and a protective cover. The lens end of the headstock has a first mounting cavity and a second mounting cavity. The camera component is located in the first mounting cavity, and the illumination component is located in the second mounting cavity. The first mounting cavity accommodates the camera component and related wiring, and the second mounting cavity accommodates the illumination component and related wiring. The protective cover is sealed to the headstock and at least covers both the first and second mounting cavities. This protective cover avoids the drawback of the camera and illumination components easily scratching the patient when the headstock is open. It also prevents the camera and illumination components from affecting normal operation while blocking mucus during surgery, thus preventing mucus adhesion and surgical manipulation when the headstock is open, and also preventing the camera and illumination components from scratching the patient when the headstock is open. Meanwhile, the headstock, protective cover, and different areas of the protective cover are made of different materials to enhance the function of each part. For example, the headstock is made of opaque plastic to enhance strength and wear resistance, the first window is made of transparent plastic to enhance light transmission, and the second window is made of transparent plastic mixed with light diffusing agent to enhance the uniformity of light illumination. The functions of each part of the headstock structure are more reasonable, making the headstock structure more convenient to use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first embodiment of the endoscope lens end structure of this utility model;

[0025] Figure 2 for Figure 1 Schematic diagram of the structure of the protective cover;

[0026] Figure 3 This is a schematic diagram of the second embodiment of the endoscope lens end structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the top structure of the second embodiment of the endoscope lens end structure;

[0028] Figure 5 for Figure 4 A partial disassembly diagram;

[0029] Figure 6 for Figure 4 First dissected anatomical view;

[0030] Figure 7 for Figure 4 The second dissected anatomical view.

[0031] In the picture:

[0032] 1. Head end seat; 100. Camera assembly; 200. Protective cover; 201. Part of the protective cover covering the first mounting cavity; 202. Part of the protective cover covering the second mounting cavity; 11. First mounting cavity; 111. First embedding groove; 112. Second embedding groove; 12. Second mounting cavity; 121. Third embedding groove; 122. Fourth embedding groove; 13. Positioning groove; 14. Working channel; 2. First viewing window; 21. First head end; 22. First side end; 221. First inlay part; 222. Second inlay part; 3. Second viewing window; 31. Second head end; 311. Positioning protrusion; 32. Second side end; 321. Third inlay part; 322. Fourth inlay part. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0037] This embodiment provides an endoscope lens end structure that can mount a camera assembly 100 and an illumination assembly.

[0038] like Figures 1-6 As shown, the endoscope lens end structure includes a headstock 1 and a protective cover 200. The lens end of the headstock 1 has a first mounting cavity 11 and a second mounting cavity 12. The second mounting cavity 12 is adjacent to the first mounting cavity 11 and both penetrate the headstock 1. The camera assembly 100 is disposed in the first mounting cavity 11, and the illumination assembly is disposed in the second mounting cavity 12. Thus, the first mounting cavity 11 can accommodate the camera assembly 100 and related wiring, and the second mounting cavity 12 can accommodate the illumination assembly and related wiring. The protective cover 200 is sealed to the headstock 1 and at least covers the first mounting cavity 11 and the second mounting cavity 12. It is used to isolate the camera assembly 100 and the illumination assembly from the outside environment. Thus, without affecting the normal operation of the camera assembly and the illumination assembly, it can also block mucus during surgery, preventing the camera assembly and the illumination assembly from adhering to mucus when the headstock is open, thus affecting the surgeon's operation. At the same time, it prevents the camera assembly and the illumination assembly from scratching the patient when the headstock is open.

[0039] Typically, the first mounting cavity 11 is located in the central region, and there are two second mounting cavities 12, with the two second mounting cavities 12 located on both sides of the first mounting cavity 11.

[0040] The headpiece 1, the portion 201 of the protective cover 200 covering the first mounting cavity 11, and the portion 202 of the protective cover 200 covering the second mounting cavity 12 are all made of different materials, enhancing the function of each part according to its characteristics and purpose. The headpiece 1 is the main body of the headpiece structure and requires high strength and wear resistance. The portion 201 of the protective cover 200 covering the first mounting cavity 11 is used to isolate the camera assembly 100 and requires good light transmission. The portion 202 of the protective cover 200 covering the second mounting cavity 12 is used to isolate the lighting assembly and, in addition to requiring good light transmission, can enhance the lighting effect. Therefore, in this application, the materials of the above three parts are all set to be different, thereby providing an endoscope lens end with better performance and better usability.

[0041] Specifically, in this application, the material of the head end seat 1 is set to opaque plastic, the material of the portion 201 of the protective cover 200 covering the first mounting cavity 11 is set to transparent plastic, and the material of the portion 202 of the protective cover 200 covering the second mounting cavity 12 is set to transparent plastic mixed with a light diffusing agent.

[0042] Furthermore, the headpiece 1 is made of black plastic. The material of the headpiece 1 can be any one of the following: PC (polycarbonate), ABS (a terpolymer of acrylonitrile (A), butadiene (B), and styrene (S) monomers), LCP (Liquid Crystal Polymer), PSU (Polysulfone), or PPSU (polyphenylene sulfone), with black pigment added. It can also be black PEEK (polyetheretherketone). In one embodiment, black PEEK is chosen for the headpiece 1 to utilize its high strength, high wear resistance, and good biocompatibility, ensuring the structural strength and durability of the headpiece 1 while avoiding adverse reactions in the human body, thus ensuring high medical safety. Through the above design, the headpiece 1 not only improves strength and wear resistance but also provides strong light-shielding functionality.

[0043] The portion 201 of the protective cover 200 covering the first mounting cavity 11 is made of any one of PC, ABS, acrylic (polymethyl methacrylate), or nylon-66 (polyhexamethylene adipamide). In one embodiment, PC is selected as the material for the portion 201 of the protective cover 200 covering the first mounting cavity 11. This is because the high transparency of PC facilitates light transmission and observation of the patient's internal condition. At the same time, PC also has a certain degree of strength, toughness, and self-lubricating ability, which can effectively reduce mucus adhesion.

[0044] The portion 202 of the protective cover 200 covering the second mounting cavity 12 is made of transparent plastic mixed with a light diffusing agent. The transparent plastic can be any one of PC, ABS, acrylic, or nylon-66. In one embodiment, the transparent plastic of the portion 202 of the protective cover 200 covering the second mounting cavity 12 is made of the same material as the portion 201 of the protective cover 200 covering the first mounting cavity 11, for example, both are made of PC. In another embodiment, the transparent plastic of the portion 202 of the protective cover 200 covering the second mounting cavity 12 is made of a different material than the portion 201 of the protective cover 200 covering the first mounting cavity 11, for example, the portion 201 of the protective cover 200 covering the first mounting cavity 11 is made of ABS, and the portion 202 of the protective cover 200 covering the second mounting cavity 12 is made of PC. The light diffusing agent can be an organic light diffusing agent, such as acrylic, styrene, or acrylic resin type. Adding the light diffusing agent to the transparent plastic can increase light scattering and transmission, blocking light sources and glaring light sources while making the entire plastic emit more uniform and softer light. By utilizing the high transparency of the transparent plastic material and the properties of the light diffusing agent, the uniformity of the light source is improved. By converting the point light source into a surface light source, uniform light distribution is achieved while maintaining high light transmittance, resulting in more uniform emitted light and better illumination.

[0045] The protective cover 200 in this application also has various structural configurations, and can be either integral or separate. In the first embodiment, the integral protective cover 200 spans the first mounting cavity 11 and the second mounting cavity 12 on the head end seat 1, such as... Figure 1 As shown, both the first mounting cavity 11 and the second mounting cavity 12 are covered. The protective cover 200 covering the portion 201 of the first mounting cavity 11 and the protective cover 200 covering the portion 202 of the second mounting cavity 12 are made of different materials, and the connecting part is made of transparent plastic. In the second embodiment, the split protective cover 200 covers the first mounting cavity 11 and the second mounting cavity 12 on the head end seat 1 respectively, as shown. Figure 2 As shown.

[0046] In one embodiment of the second method, the protective cover 200 includes a first window 2 and a second window 3, such as... Figure 3As shown. The first window 2 is sealed to the headstock 1, covering the first mounting cavity 11, and its outer edge is curved. The first window 2 isolates the camera assembly 100 from the outside environment. The second window 3 is sealed to the headstock 1, covering the second mounting cavity 12, and its outer edge is also curved. The second window 3 isolates the lighting assembly from the outside environment. Thus, by setting the first window 2 and the second window 3, it is possible to block mucus during surgery without affecting the normal operation of the camera assembly 100 and the lighting assembly. This prevents mucus from adhering to the camera assembly 100 and the lighting assembly when the headstock 1 is open, thus avoiding interference with the surgeon's operation. It also prevents the camera assembly 100 and the lighting assembly from scratching the patient when the headstock 1 is open. Setting the outer edges of both the first window 2 and the second window 3 as curved not only avoids scratching the patient but also facilitates the flow of mucus during surgery from the edges of the first window 2 and the second window 3, avoiding interference with the field of vision.

[0047] The first window 2 uses the same material as the part of the protective cover 200 covering the second mounting cavity 12, and the second window 3 uses the same material as the part of the protective cover 200 covering the second mounting cavity 12.

[0048] In this embodiment, the outer edges of the first window 2 and the second window 3 can be set as arcs with a large curvature, making the edges more rounded. This not only reduces the probability of damage when in contact with human skin, but also facilitates the flow of mucus from the windows.

[0049] Specifically, the head end seat 1 is also provided with a working channel 14. The working channel 14 and the first mounting cavity 11 are located on opposite sides of the head end seat 1, and there are two second mounting cavities 12. The line connecting the two second mounting cavities 12 is diagonally arranged with the line connecting the first mounting cavity 11 and the working channel 14, so as to make reasonable use of the space of the head end seat 1 and facilitate the miniaturization design of the head end structure.

[0050] The first window 2 and the second window 3 in this application can be implemented in various ways. In one embodiment, the overall shape of the first window 2 and the second window 3 is a circular plate, a square plate, a rectangular plate, or an irregularly shaped plate, with a certain thickness and curved edges, respectively covering the openings of the first mounting cavity 11 and the second mounting cavity 12. In another embodiment, the first mounting cavity 11 and the second mounting cavity 12 form a snap-fit ​​shape, and the first window 2 and the second window 3 have a snap-fit ​​structure that matches the snap-fit ​​shape, so that the first window 2 and the second window 3 can be snapped into the first mounting cavity 11 and the second mounting cavity 12 respectively.

[0051] Based on the different embodiments and shapes of the first and second windows 2 and 3 described above, there are various specific arrangements for their outer edges. One option is to make only the side of the first and second windows 2 and 3 furthest from the center of the headstock 1 curved, thus facilitating the flow of mucus during surgery along the side furthest from the center of the headstock 1. Alternatively, based on the above embodiments, the side of the first and second windows 2 and 3 closest to the center of the headstock 1 can also be made curved, or all sides of the first and second windows 2 and 3 can be made curved. This way, regardless of whether the mucus appears on either side of the first and second windows 2 and 3, it can flow along the curved surface closest to the mucus to the outside of the window, avoiding obstruction of vision.

[0052] Specifically, the first window 2 is an optical window with a composite optical design. While protecting the internal camera component 100, it can also improve the visual experience. Furthermore, there is physical isolation on the optical link between the first window 2 and the second window 3, and there is also optical protection against stray light between the first window 2 and the second window 3.

[0053] Furthermore, both the first window 2 and the second window 3 are integrally formed with the head end seat 1 through secondary injection molding. By using the head end seat 1 made of opaque plastic material, the first window 2 made of transparent plastic material, and the second window 3 made of transparent plastic mixed with light diffusing agent, the connection strength and sealing between the first window 2 and the second window 3 and the head end seat 1 can be ensured after secondary injection molding.

[0054] like Figure 4 and Figure 5 As shown, the first viewing window 2 includes a first head end 21 and a first side end 22 connected to each other. A portion of the first mounting cavity 11 extends through the side end of the head end base 1. Within the first mounting cavity 11, the first head end 21 is sealed to the lens end of the head end base 1, and the first side end 22 is sealed to the side end of the head end base 1. Thus, when the camera assembly 100 takes pictures through the lens end of the head end base 1, it can also take pictures through the side end of the head end base 1, thereby increasing the shooting range and facilitating the operation and use by doctors. The first head end 21 protrudes from the head end base 1 towards the lens end of the head end base 1, and the junction of the first head end 21 with the lens end and the junction of the first head end 21 with the first side end 22 are both set with inclined arc surfaces. Thus, a guide surface can be formed on the outer periphery of the first head end 21, allowing mucus to be guided away from the first head end 21 through the guide surface, thereby preventing mucus from accumulating on the first viewing window 2 and affecting the normal use of the camera assembly 100.

[0055] Optionally, the inner wall of the first mounting cavity 11 is recessed to form an intersecting first embedding groove 111 and a second embedding groove 112. The first side end 22 has an intersecting first inlay portion 221 and a second inlay portion 222. The first inlay portion 221 is embedded in the first embedding groove 111, and the second inlay portion 222 is embedded in the second embedding groove 112. Thus, through the cooperation of the first inlay portion 221 with the first embedding groove 111 and the cooperation of the second inlay portion 222 with the second embedding groove 112, the stability of the first viewing window 2 on the head end seat 1 can be ensured, and the shaking of the first viewing window 2 can be avoided, which would affect the use of the camera assembly 100.

[0056] like Figure 4 and Figure 6 As shown, the second viewing window 3 includes a second head end 31 and a second side end 32 connected to each other. The junction of the second head end 31 and the second side end 32 is set with an inclined arc surface. Part of the second mounting cavity 12 penetrates the side end of the head end base 1. In the second mounting cavity 12, the second head end 31 is sealed to the lens end of the head end base 1, and the second side end 32 is sealed to the side end of the head end base 1. Thus, when the lighting component illuminates through the lens end of the head end base 1, it can also illuminate through the side end of the head end base 1, thereby improving the lighting range and facilitating operation by doctors. The lens end of the head end base 1 is also provided with a positioning groove 13. One end of the positioning groove 13 is connected to the second mounting cavity 12. The second head end 31 protrudes with a positioning protrusion 311, which is embedded in the positioning groove 13. Through the cooperation of the positioning protrusion 311 and the positioning groove 13, the second viewing window 3 can be positioned on the head end base 1.

[0057] Optionally, the inner wall of the second mounting cavity 12 is recessed to form an intersecting third embedding groove 121 and a fourth embedding groove 122. The second side end 32 has an intersecting third inlay portion 321 and a fourth inlay portion 322. The third inlay portion 321 is embedded in the third embedding groove 121, and the fourth inlay portion 322 is embedded in the fourth embedding groove 122. Thus, through the cooperation of the third inlay portion 321 with the third embedding groove 121 and the cooperation of the fourth inlay portion 322 with the fourth embedding groove 122, the stability of the second window 3 on the head end seat 1 can be ensured, and the second window 3 can be prevented from shaking, which would affect the use of the lighting components.

[0058] This embodiment also provides an endoscope including the head end structure described above. By using this head end structure, the endoscope can block mucus during surgery without affecting the normal operation of the camera and lighting components. This prevents mucus from adhering to the camera and lighting components when the head end base 1 is open, thus avoiding interference with the surgeon's operation. It also prevents the camera and lighting components from scratching the patient when the head end base 1 is open. The protective cover can be integral or modular. When modular, at least a first and a second viewing window are provided. The outer edges of the first and second viewing windows are curved, which not only prevents scratching the patient but also facilitates the drainage of mucus during surgery from the edges of the first and second viewing windows, avoiding interference with the field of vision. Meanwhile, the headstock, first window, and second window are made of different materials to enhance the functionality of each part. For example, the headstock is made of opaque plastic to enhance strength and wear resistance, the first window is made of transparent plastic to enhance light transmission, and the second window is made of transparent plastic mixed with light diffusing agent to enhance the uniformity of light illumination. The functions of each part of the headstock structure are more reasonable, making the headstock structure more convenient to use.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An endoscope lens end structure capable of mounting a camera assembly and an illumination assembly, characterized in that, The head end structure includes: The head end base (1) has a first mounting cavity (11) and a second mounting cavity (12) at the lens end. The second mounting cavity (12) is arranged adjacent to the first mounting cavity (11). The camera component is disposed in the first mounting cavity (11) and the lighting component is disposed in the second mounting cavity (12). A protective cover is sealed to the head end seat (1) and covers at least the first mounting cavity (11) and the second mounting cavity (12); The materials of the head end seat (1), the portion of the protective cover covering the first mounting cavity (11), and the portion of the protective cover covering the second mounting cavity (12) are all different.

2. The endoscope lens end structure according to claim 1, characterized in that, The head end (1) is made of opaque plastic, the part of the protective cover covering the first mounting cavity (11) is made of transparent plastic, and the part of the protective cover covering the second mounting cavity (12) is made of transparent plastic mixed with a light diffusing agent.

3. The endoscope lens end structure according to claim 2, characterized in that, The protective cover includes a first window (2) and a second window (3). The first window (2) is sealed to the head end seat (1) and covers the first mounting cavity (11). The outer edge of the first window (2) forms a curved surface. The first window (2) is used to isolate the camera component from the outside world. The second window (3) is sealed to the head end seat (1) and covers the second mounting cavity (12). The outer edge of the second window (3) forms a curved surface. The second window (3) is used to isolate the lighting component from the outside world.

4. The endoscope lens end structure according to claim 3, characterized in that, The first viewing window (2) includes a first head end (21) and a first side end (22) connected to each other, and a portion of the first mounting cavity (11) extends through the side end of the head end seat (1); within the first mounting cavity (11), the first head end (21) is sealed to the lens end of the head end seat (1), and the first side end (22) is sealed to the side end of the head end seat (1).

5. The endoscope lens end structure according to claim 4, characterized in that, The first head end (21) protrudes from the head end seat (1) towards the lens end side of the head end seat (1), and the connection between the first head end (21) and the lens end, as well as the connection between the first head end (21) and the first side end (22), are both provided with inclined slopes.

6. The endoscope lens end structure according to claim 4, characterized in that, The inner wall of the first mounting cavity (11) is recessed to form a first embedding groove (111) and a second embedding groove (112) that are intersecting. The first side end (22) has a first inlay part (221) and a second inlay part (222) that are intersecting. The first inlay part (221) is embedded in the first embedding groove (111), and the second inlay part (222) is embedded in the second embedding groove (112).

7. The endoscope lens end structure according to claim 3, characterized in that, The second viewing window (3) includes a second head end (31) and a second side end (32) connected to each other, and a portion of the second mounting cavity (12) extends through the side end of the head end seat (1); within the second mounting cavity (12), the second head end (31) is sealed to the lens end of the head end seat (1), and the second side end (32) is sealed to the side end of the head end seat (1).

8. The endoscope lens end structure according to claim 7, characterized in that, The lens end of the head end seat (1) is also provided with a positioning groove (13), one end of the positioning groove (13) is connected to the second mounting cavity (12), and the second head end (31) is provided with a positioning protrusion (311), which is embedded in the positioning groove (13).

9. The endoscope lens end structure according to claim 7, characterized in that, The inner wall of the second mounting cavity (12) is recessed to form a third embedding groove (121) and a fourth embedding groove (122) that are intersecting. The second side end (32) has a third inlay part (321) and a fourth inlay part (322) that are intersecting. The third inlay part (321) is embedded in the third embedding groove (121), and the fourth inlay part (322) is embedded in the fourth embedding groove (122).

10. The endoscope lens end structure according to any one of claims 3-9, characterized in that, Both the first window (2) and the second window (3) are integrally formed with the head end seat (1) by secondary injection molding.

Images