Endoscope, tip assembly thereof and manufacturing method of tip assembly

Abstract

The invention discloses an endoscope, a tip assembly thereof and a manufacturing method of the tip assembly, and relates to the technical field of endoscopes, the tip assembly of the endoscope comprises a camera module, an illumination module and a head end seat, the camera module is used for obtaining an image of a target position, the illumination module is used for providing a light source for the target position, and the head end seat is provided with a near end and a far end which are oppositely arranged; a module mounting hole and a lighting mounting hole which are communicated with each other are formed in the head end base, the module mounting hole penetrates through the head end base in the direction from the near end to the far end, at least part of the camera module is adhered to the far end of the module mounting hole through an adhesive, and the lighting mounting hole is used for mounting a lighting module; a groove is formed between the far-end end face of the lighting installation hole and the far-end end face of the module installation hole and used for limiting diffusion of the adhesive. The tip assembly is small in size, wide in application range and capable of solving the problems that the image quality is affected and the image quality consistency is poor due to the fact that an adhesive makes contact with the light-emitting face, and better image quality is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of endoscopes, and more specifically to an endoscope and a tip component thereof and a method for manufacturing the tip component. Background Art

[0002] Endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, software, etc. With the rapid development of science and medical technology in recent years, endoscopic minimally invasive or non-invasive medical examination and treatment have been widely popularized. Endoscopes can enter the human body through natural channels or surgical incisions to inspect or treat internal organs. On the one hand, the size of the endoscope, especially the maximum size of the tip, will affect the patient's experience and limit the scope of use of the endoscope; on the other hand, the endoscope is an important tool for doctors to diagnose diseases, and its image quality is directly related to the accuracy and effect of the diagnosis. Summary of the invention

[0003] The present application provides an endoscope, a tip component thereof, and a method for manufacturing the tip component, which can reduce the size of the tip component, increase its scope of use, and solve the problem of image quality affected and poor image quality consistency caused by contact between the adhesive and the light-emitting surface, so as to achieve better image quality.

[0004] The present application provides a front end component of an endoscope, comprising:

[0005] A camera module, wherein the camera module is used to obtain an image of a target location;

[0006] an illumination module, the illumination module being used to provide a light source to the target location; and

[0007] A head end seat, the head end seat having a proximal end and a distal end that are relatively arranged, and a module mounting hole and a lighting mounting hole that are interconnected are provided in the head end seat, the module mounting hole passes through the head end seat in a direction from the proximal end to the distal end, and at least a part of the camera module is adhered to the distal end of the module mounting hole by an adhesive; the lighting mounting hole is used to install a lighting module, and a groove is provided between the distal end surface of the lighting mounting hole and the distal end surface of the module mounting hole, and the groove is used to limit the diffusion of the adhesive.

[0008] In some optional embodiments, the groove includes a distal end face of the groove, a first side face, a second side face and a third side face, the first side face is connected to the distal end face of the lighting mounting hole, the second side face and the third side face are relatively arranged on both sides of the first side face, and the distal end face of the groove is connected to the distal ends of the first side face, the second side face and the third side face to form a structure that is open at the proximal end and the side face toward the module mounting hole, so that the lighting mounting hole, the module mounting hole and the groove are interconnected.

[0009] In some optional embodiments, the distal end surface of the groove, the first side surface, the second side surface and the third side surface are planar structures or curved structures.

[0010] In some optional embodiments, a filling groove is further provided at the distal end of the head end seat, and the filling groove is arranged along the circumference of the module mounting hole. The proximal end face of the filling groove is connected to the distal end face of the groove, and the filling groove is filled with the adhesive.

[0011] In some optional embodiments, the adhesive is also provided in the proximal end of the lighting mounting hole and / or the module mounting hole, and the distal end of the adhesive in the lighting mounting hole and / or the module mounting hole and the proximal end of the lighting module are spaced apart to form an air gap.

[0012] In some optional embodiments, the distal end face of the lighting module is disposed close to the distal end face of the lighting installation hole, and the distal end face of the camera module is exposed outside the distal end face of the module installation hole;

[0013] The lighting module includes two lighting units, which are respectively arranged on the outer side surfaces of the camera module in the radial direction, the lighting mounting hole and the module mounting hole are coaxially arranged, and the lighting mounting hole is arranged on both sides of the module mounting hole.

[0014] In some optional embodiments, the proximal end of the head end seat is provided with an insertion tube interface, the insertion tube interface is used to connect with the insertion tube at the proximal end of the head end seat, and the distal end surface of the insertion tube interface is located between the proximal end surface and the distal end surface of the lighting installation hole;

[0015] A positioning notch is provided on the outer side of the distal end of the head end seat, and the positioning notch is used for directional positioning during the installation of the camera module.

[0016] The present application also provides an endoscope, comprising the tip assembly as described above.

[0017] The present application also provides a method for manufacturing a tip assembly of an endoscope, which is used to manufacture the tip assembly as described above, and the steps include:

[0018] A head end seat having a module mounting hole and a lighting mounting hole is provided, wherein the head end seat has a proximal end and a distal end which are arranged opposite to each other;

[0019] Inserting an integrated structure consisting of a camera module and an illumination module from the proximal end, and making the camera module at least partially located in the module mounting hole, and the illumination module located in the illumination mounting hole;

[0020] Filling adhesive between the distal end of the module mounting hole and the camera module, and allowing the adhesive to climb along the gap between the camera module and the module mounting hole and a part of the structure of the groove, so that the camera module is at least partially embedded in the adhesive, and the adhesive is away from the distal end surface of the lighting module;

[0021] The adhesive is hardened by using a physical or chemical method, so that the adhesive fills the gap between the module mounting hole and the camera module and connects them.

[0022] In some optional embodiments, the step also includes: filling adhesive into the proximal end of the module mounting hole and / or the lighting mounting hole, allowing the adhesive to flow along the space in the hole, and ensuring that there is at least a partial air gap between the distal end of the lighting mounting hole and the distal end of the adhesive.

[0023] According to the front end assembly of the endoscope in the above embodiment, it includes a camera module, an illumination module and a head end seat, the head end seat has a proximal end and a distal end arranged relatively, a module mounting hole and an illumination mounting hole which are interconnected are arranged in the head end seat, the module mounting hole passes through the head end seat in the direction from the proximal end to the distal end, at least part of the camera module is adhered to the distal end of the module mounting hole by an adhesive, the illumination mounting hole is used to install the illumination module, and a groove is arranged between the distal end face of the illumination mounting hole and the distal end face of the module mounting hole, the groove is used to limit the diffusion of the adhesive. Since the module mounting hole and the illumination mounting hole are formed in the head end seat, and the two are interconnected without any obstruction, it helps to reduce the external dimensions of the head end seat, so that it is convenient for the head end seat to enter various narrow passages in the human body, which can improve the use range of the endoscope. Since a groove is provided between the distal end face of the lighting mounting hole and the distal end face of the module mounting hole, the gap between the module mounting hole and the camera module can be partially increased, thereby weakening the capillary effect and limiting the diffusion of the adhesive, so that the adhesive cannot contact the light-emitting surface, solving the problem of image quality affecting and poor image quality consistency caused by the contact between the adhesive and the light-emitting surface, so as to achieve better image quality and enhance the operator's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the assembly and disassembly of a front-end component in one embodiment;

[0025] Figure 2 A structural cross-sectional view of a head end seat in an embodiment;

[0026] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0027] Figure 4 A schematic diagram of the proximal structure of the head end seat in one embodiment;

[0028] Figure 5 A partial structural cross-sectional view of a head end seat in an embodiment;

[0029] Figure 6 A schematic diagram of the assembly of a front-end component in one embodiment;

[0030] Figure 7 A schematic diagram of a structure in which a front-end component is filled with a first adhesive in one embodiment;

[0031] Figure 8 In one embodiment, the front-end component is Figure 7 A schematic diagram of a structure in which a second adhesive is filled on the base;

[0032] Fig. 9 This is a schematic diagram of the integrated structure of a camera module and an illumination module in one embodiment;

[0033] Fig.10 It is a schematic diagram of the three-dimensional structure of the head end seat in an embodiment.

[0034] Among them: 1. front-end component; 11. camera module; 111. positioning mark; 12. lighting module; 121. lighting unit; 13. head end seat; 131. module mounting hole; 132. lighting mounting hole; 1321. air gap; 133. groove; 1331. groove distal end face; 1332. first side; 1333. second side; 1334. third side; 134. filling groove; 135. insertion tube interface; 136. positioning notch; 14. first adhesive; 15. second adhesive. DETAILED DESCRIPTION

[0035] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0036] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations, and the operation steps involved in each embodiment can also be replaced or adjusted in a sequence in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment and do not mean that the composition and / or sequence are necessary.

[0037] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0039] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientation or positional relationships, some of the above terms may also be used to express other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0040] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In order to more clearly describe the structure of the present application, "proximal" and "distal" are used as directional words. "Proximal" refers to the end of the structure close to the operator when in use, and "distal" refers to the end of the structure far away from the operator when in use, that is, the end close to the patient or extending into the patient's body.

[0042] The present application provides an endoscope, which may be a laparoscope, a pyeloscope, etc. Figure 1 The endoscope includes an operating handle (not shown in the figure), an insertion tube (not shown in the figure) and a tip component 1. The insertion tube is arranged at the proximal end of the tip component 1, the operating handle is arranged at the proximal end of the insertion tube, and at least a part of the insertion tube is inserted and fixed in or on the operating handle. The insertion tube can be inserted into the target position, and the operating handle can control the insertion tube and the tip component 1 to move and rotate to adjust their positions.

[0043] See also Figures 1 to 10 The front-end assembly 1 includes a camera module 11, an illumination module 12 and a head end seat 13. The camera module 11 is used to obtain an image of a target position, and the illumination module 12 is used to provide a light source to the target position; the head end seat 13 has a proximal end and a distal end that are relatively arranged, and the distal end of the front-end assembly 1 can be defined by the distal end of the head end seat 13, and the proximal end can be defined by the proximal end of the front-end assembly 1, and the proximal end of the head end seat 13 is an open structure, so that other structural components can be placed in the head end seat 13. A module mounting hole 131 and a lighting mounting hole 132 which are interconnected are provided in the head end seat 13, that is, at least one side of the module mounting hole 131 and the lighting mounting hole 132 overlaps, the module mounting hole 131 passes through the head end seat 13 in the direction from the proximal end to the distal end, and is used for installing and setting the module, and at least part of the camera module 11 is adhered (or attached) to the distal end of the module mounting hole 131 by an adhesive; the lighting mounting hole 132 is used to install the lighting module 12, and a groove 133 is provided between the distal end face of the lighting mounting hole 132 and the distal end face of the module mounting hole 131, and the groove 133 is used to limit the diffusion of the adhesive.

[0044] Since the module mounting hole 131 and the lighting mounting hole 132 are formed in the head end seat 13 and are interconnected without any obstruction, it helps to reduce the external dimensions of the head end seat 13, making it easier for the head end seat 13 to enter various narrow passages in the human body, thereby improving the use range of the endoscope.

[0045] It is understandable that, considering the cost and installation difficulty, the camera module 11 is adhered to the module mounting hole 131 by adhesive to achieve a fixed connection between the two. However, the adhesive is generally in liquid form and has a certain fluidity. There is a possibility that it flows to the light-emitting surface of the lighting module 12. Based on this possibility, it will affect the image quality finally formed by the camera module 11.

[0046] The distal end of the lighting installation hole 132 does not penetrate the head end seat 13, so that a thin-walled structure is formed at the distal end, thereby protecting the light-emitting surface. However, in order to better fix and position the camera module 11, the gap between the camera module 11 and the module installation hole 131 should be as small as possible when the two are assembled. The presence of a small gap is prone to capillary effect. Based on the capillary effect, the adhesive flows along the gap between the camera module 11 and the module installation hole 131 and easily flows to the light-emitting surface, making the protective effect of the thin-walled structure on the light-emitting surface ineffective.

[0047] In order to solve the above problems, the present application creatively provides a groove 133 between the distal end face of the lighting mounting hole 132 and the distal end face of the module mounting hole 131. The setting of the groove 133 partially increases the gap between the module mounting hole 131 and the camera module 11, thereby weakening the capillary effect and limiting the diffusion of the adhesive, so that the adhesive cannot contact the light-emitting surface, solving the problem of image quality affecting and poor image quality consistency caused by the contact between the adhesive and the light-emitting surface, so as to achieve better image quality and enhance the user experience of operators and patients.

[0048] See also Figure 3 and Figure 4 In some embodiments, the groove 133 includes a groove distal end face 1331, a first side face 1332, a second side face 1333 and a third side face 1334, the first side face 1332 is connected to the distal end face of the lighting mounting hole 132, the second side face 1333 and the third side face 1334 are relatively arranged on both sides of the first side face 1332, the groove distal end face 1331 is connected to the distal ends of the first side face 1332, the second side face 1333 and the third side face 1334 to form a structure that is open at the proximal end and the side facing the module mounting hole 131, so that the lighting mounting hole 132, the module mounting hole 131 and the groove 133 are interconnected, which can reduce the setting of the cavity wall forming the hole structure, thereby contributing to the miniaturized design of the head end seat 13.

[0049] In some embodiments, the groove distal end surface 1331, the first side surface 1332, the second side surface 1333 and the third side surface 1334 can all be planar structures, the groove distal end surface 1331 extends in a direction perpendicular to the proximal end to the distal end, the first side surface 1332 is connected to the distal end surface of the lighting mounting hole 132, the second side surface 1333 and the third side surface 1334 are relatively arranged on both sides of the first side surface 1332, and the first side surface 1332, the second side surface 1333 and the third side surface 1334 extend in a direction parallel to the proximal end to the distal end, and the second side surface 1333 and / or the third side surface 1334 are relatively arranged on both sides of the first side surface 1332. The three side surfaces 1334 are connected to or overlap with the module mounting hole 131, the second side surface 1333 and / or the third side surface 1334 are connected to or overlap with the lighting mounting hole 132, and the distal end surface 1331 of the groove and the first side surface 1332 are connected to form a step structure. When the camera module 11 is installed in the module mounting hole 131 and fixed at the distal end, the step structure increases the gap between the camera module 11 and the side surface of the module mounting hole 131, weakens the capillary effect of the adhesive in the gap, thereby effectively preventing the adhesive from climbing along the distal end surface of the lighting mounting hole 132 and contacting the light-emitting surface.

[0050] In other embodiments, the groove distal end face 1331, the first side face 1332, the second side face 1333 and the third side face 1334 can all be planar structures, and angles (acute angles or obtuse angles) are formed between the groove distal end face 1331 and the first side face 1332, the second side face 1333 and the third side face 1334, which can also increase the gap between the camera module 11 and the side face of the module mounting hole 131.

[0051] In some embodiments, at least one of the groove distal end surface 1331, the first side surface 1332, the second side surface 1333 and the third side surface 1334 may be a curved surface structure. Exemplarily, the first side surface 1332, the second side surface 1333 and the third side surface 1334 are curved surface structures and are continuously arranged to form a smooth arc surface.

[0052] See also Figure 6 and Figure 7 In some embodiments, a filling groove 134 is further provided at the distal end of the head end seat 13. The filling groove 134 is arranged along the circumference of the module mounting hole 131. The proximal end face of the filling groove 134 is connected to the distal end face of the groove 133. A partial side face of the module mounting hole 131 is provided between the proximal end face of the filling groove 134 and the distal end face of the groove 133. The partial side face realizes the connection between the filling groove 134 and the groove 133. The filling groove 134 is filled with adhesive. During assembly, the adhesive can be filled from the distal end to the proximal end. Part of the adhesive can be filled in the filling groove 134 to realize the connection between the camera module 11 and the module mounting hole 131. Due to the provision of the filling groove 134, part of the adhesive can be stored, thereby improving the reliability of the connection between the module mounting hole 131 and the camera module 11.

[0053] See also Figure 8 In some embodiments, adhesive is also provided in the proximal end of the lighting mounting hole 132 and / or the module mounting hole 131. This portion of adhesive is filled from the proximal end, and the distal end of the adhesive in the lighting mounting hole 132 and the proximal end of the lighting module 12 are spaced apart, so that an air gap 1321 is formed between this portion of adhesive and the distal end surface of the lighting mounting hole 132 (or the proximal end surface of the light-emitting surface), which can further improve the installation stability of the camera module 11 and reduce the possibility of contact between this portion of adhesive and the light-emitting surface.

[0054] For the sake of distinction and illustration, the adhesive between the camera module 11 and the module mounting hole 131 is defined as the first adhesive 14, and the adhesive in the lighting mounting hole 132 and / or the module mounting hole 131 is defined as the second adhesive 15. Figure 8 shown.

[0055] It should be understood that the module mounting hole 131 mentioned above is used to install the camera module 11, and it is not limited to that the camera module 11 is completely installed in the module mounting hole 131. On the contrary, the camera module 11 may have at least a partial structure exposed outside the module mounting hole 131 (or the head end seat 13), for example, the distal end face of the camera module 11 is exposed outside the distal end face of the module mounting hole 131.

[0056] In some embodiments, the distal end face of the lighting module 12 is arranged close to the distal end face of the lighting mounting hole 132, that is, the distal end face of the light-emitting surface of the lighting module 12 and the distal end face of the lighting mounting hole 132 can overlap, and the distal end face of the light-emitting surface of the lighting module 12 and the distal end face of the lighting mounting hole 132 can also be arranged at intervals, leaving a small gap between the two (the gap can be intentional when designing the structure, and can also be formed by a processing error), which can avoid a "head-on" collision between the light-emitting surface and the distal end face of the lighting mounting hole 132, thereby protecting the light-emitting surface.

[0057] See also Fig. 9 In some embodiments, the lighting module 12 includes two lighting units 121, which are respectively arranged on the outer side of the camera module 11 in the radial direction, and are integrally formed with the camera module 11, which is convenient for integral assembly and can simplify the assembly steps. In order to adapt to this structure, the lighting installation hole 132 and the module installation hole 131 are coaxially arranged, and the lighting installation hole 132 is correspondingly arranged on both sides of the module installation hole 131, so that the sides of the lighting installation hole 132 and the module installation hole 131 overlap.

[0058] Of course, in other embodiments, when the lighting module 12 includes one lighting unit 121, the lighting unit 121 is disposed on the outer side of the camera module 11, and the lighting installation hole 132 and the module installation hole 131 are disposed along the radial direction of the head end seat 13, and only part of the side surfaces of the lighting installation hole 132 and the module installation hole 131 overlap. When there are three or more lighting modules 12, the lighting installation holes 132 can be disposed around the module installation holes 131.

[0059] Please continue reading Figure 2 In some embodiments, an insertion tube interface 135 is provided at the proximal end of the head end seat 13, and the insertion tube interface 135 is used to connect with the insertion tube at the proximal end of the head end seat 13. The distal end face of the insertion tube interface 135 is located between the proximal end face and the distal end face of the lighting mounting hole 132, and is also located between the proximal end face and the distal end face of the module mounting hole 131, so that the insertion tube can be inserted into the head end seat 13, which is convenient for a firm connection.

[0060] See also Fig.10 In some embodiments, a positioning notch 136 is provided on the outer side of the distal end of the head end seat 13, and the positioning notch 136 is used for directional positioning during the installation of the camera module 11. The head end seat 13 is generally a cylindrical structure, and the positioning notch 136 is formed by a part of the side wall of the cylindrical structure being recessed toward the center. The positioning notch 136 is provided to facilitate the determination of the front and back of the camera module 11 for correct installation. Fig. 9 The camera module 11 may also be provided with a positioning mark 111. During assembly, the positioning notch 136 and the positioning mark 111 correspond to each other in the same direction, that is, both are arranged upward, leftward, rightward or downward.

[0061] The second embodiment of the present application provides the aforementioned front-end component 1, the structure of which has been described in detail above and will not be elaborated on here.

[0062] The third embodiment of the present application provides a method for manufacturing a tip assembly 1 of an endoscope, which is used to manufacture the tip assembly as mentioned above, and the steps include:

[0063] A head end seat 13 having a module mounting hole 131 and a lighting mounting hole 132 is provided, and the head end seat 13 has a proximal end and a distal end which are arranged opposite to each other.

[0064] Insert the integrated structure consisting of the camera module 11 and the lighting module 12 from the proximal end, and make the camera module 11 at least partially located in the module installation hole 131, and the lighting module 12 located in the lighting installation hole 132, as shown in FIG. Figure 6 shown.

[0065] The first adhesive 14 is filled between the distal end of the module mounting hole 131 and the camera module 11, and the first adhesive 14 is allowed to climb along the gap between the camera module 11 and the module mounting hole 131 and the partial structure of the groove 133, so that the camera module 11 is at least partially embedded in the first adhesive 14, and the first adhesive 14 is kept away from the distal end surface of the lighting module 12, as shown in FIG. Figure 7 shown.

[0066] The first adhesive 14 is hardened by a physical or chemical method, so that the first adhesive 14 fills the gap between the module mounting hole 131 and the camera module 11 and connects them.

[0067] In some embodiments, the steps of the above manufacturing method further include: filling the proximal end of the module mounting hole 131 and / or the lighting mounting hole 132 with the second adhesive 15, allowing the second adhesive 15 to flow along the space in the hole, and ensuring that there is at least a partial air gap 1321 between the distal end of the lighting mounting hole 132 and the distal end of the second adhesive 15, such as Figure 8 In this embodiment, the second adhesive 15 is also allowed to be hardened by physical or chemical methods.

[0068] It should be noted that the initial state of the first adhesive 14 and the second adhesive 15 is liquid and has a certain fluidity, which can increase the contact area between the first adhesive 14 and the camera module 11 and / or the module mounting hole 131, the second adhesive 15 and the lighting mounting hole 132, so that the first adhesive 14 and the second adhesive 15 can fill the installation gap and increase the stability of the connection.

[0069] In one embodiment, the method of using physical or chemical methods to harden the first adhesive 14 and the second adhesive 15 includes using special light illumination (eg, ultraviolet light illumination hardening).

[0070] The fourth embodiment of the present application provides a method for manufacturing an endoscope, including the method for manufacturing the above-mentioned tip component 1. The method for manufacturing the tip component 1 has been described in detail above and will not be repeated here.

[0071] The above specific examples are used to illustrate the present application, which is only used to help understand the present application and is not intended to limit the present application. For technicians in the technical field to which the present application belongs, they can also make some simple deductions, deformations or substitutions based on the ideas of the present application.

Claims

1. A tip assembly of an endoscope, characterized in that: include: A camera module, wherein the camera module is used to obtain an image of a target location; An illumination module, the illumination module being used to provide a light source to the target position; as well as A head end seat, the head end seat having a proximal end and a distal end that are relatively arranged, and a module mounting hole and a lighting mounting hole that are interconnected are provided in the head end seat, the module mounting hole passes through the head end seat in a direction from the proximal end to the distal end, and at least a part of the camera module is adhered to the distal end of the module mounting hole by an adhesive; the lighting mounting hole is used to install a lighting module, and a groove is provided between the distal end surface of the lighting mounting hole and the distal end surface of the module mounting hole, and the groove is used to limit the diffusion of the adhesive.

2. The endoscope tip assembly according to claim 1, characterized in that: The groove includes a distal end face of the groove, a first side face, a second side face and a third side face, the first side face is connected to the distal end face of the lighting mounting hole, the second side face and the third side face are relatively arranged on both sides of the first side face, and the distal end face of the groove is connected to the distal ends of the first side face, the second side face and the third side face to form a structure that is open at the proximal end and the side face toward the module mounting hole, so that the lighting mounting hole, the module mounting hole and the groove are interconnected.

3. The endoscope tip assembly according to claim 2, characterized in that: The distal end surface of the groove, the first side surface, the second side surface and the third side surface are planar structures or curved structures.

4. The endoscope tip assembly according to claim 1, characterized in that: A filling groove is also provided at the distal end of the head end seat. The filling groove is arranged along the circumference of the module mounting hole. The proximal end surface of the filling groove is connected to the distal end surface of the groove. The filling groove is filled with the adhesive.

5. The endoscope tip assembly according to claim 1, characterized in that: The adhesive is also disposed in the proximal end of the lighting installation hole and / or the module installation hole, and the distal end of the adhesive in the lighting installation hole and the proximal end of the lighting module are spaced apart to form an air gap.

6. The endoscope tip assembly according to claim 1, characterized in that: The distal end face of the lighting module is arranged close to the distal end face of the lighting installation hole, and the distal end face of the camera module is exposed to the distal end face of the module installation hole; The lighting module includes two lighting units, which are respectively arranged on the outer side surfaces of the camera module in the radial direction, the lighting mounting hole and the module mounting hole are coaxially arranged, and the lighting mounting hole is arranged on both sides of the module mounting hole.

7. The endoscope tip assembly according to claim 1, characterized in that: The proximal end of the head end seat is provided with an insertion tube interface, the insertion tube interface is used to connect with the insertion tube at the proximal end of the head end seat, and the distal end surface of the insertion tube interface is located between the proximal end surface and the distal end surface of the lighting installation hole; A positioning notch is provided on the outer side of the distal end of the head end seat, and the positioning notch is used for directional positioning during the installation of the camera module.

8. An endoscope, characterized in that: Comprising a tip assembly as described in any one of claims 1-7.

9. A method for manufacturing a tip assembly of an endoscope, characterized in that: The method for manufacturing a tip assembly according to any one of claims 1 to 7 comprises: A head end seat having a module mounting hole and a lighting mounting hole is provided, wherein the head end seat has a proximal end and a distal end which are arranged opposite to each other; Inserting an integrated structure consisting of a camera module and an illumination module from the proximal end, and making the camera module at least partially located in the module mounting hole, and the illumination module located in the illumination mounting hole; Filling adhesive between the distal end of the module mounting hole and the camera module, and allowing the adhesive to climb along the gap between the camera module and the module mounting hole and a part of the structure of the groove, so that the camera module is at least partially embedded in the adhesive, and the adhesive is away from the distal end surface of the lighting module; The adhesive is hardened by using a physical or chemical method, so that the adhesive fills the gap between the module mounting hole and the camera module and connects them.

10. The method for manufacturing the tip assembly of an endoscope according to claim 9, characterized in that: The step also includes: filling adhesive into the proximal end of the module mounting hole and / or the lighting mounting hole, allowing the adhesive to flow along the space in the hole, and ensuring that there is at least a partial air gap between the distal end of the lighting mounting hole and the distal end of the adhesive.

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