Tip assembly and endoscope

Abstract

The utility model relates to the field of medical instruments, and provides a tip assembly and an endoscope, and the tip assembly comprises a shell, an instrument port and a water return port. The shell is used for being inserted into a target part, the instrument opening is formed in the far end of the shell so as to at least allow an instrument to penetrate out and output perfusion liquid to the target part, the water return opening is formed in the shell and is spaced from the instrument opening, an instrument pipe is installed at the instrument opening, and the instrument pipe is connected with a liquid supply device so as to perfuse liquid to the target part. A water return pipe is mounted at the water return port, and perfusion liquid at the target position is discharged through the water return pipe, so that the instrument pipe and the water return pipe are arranged at intervals, redundant liquid can flow out of the water return pipe while the liquid is perfused to the target position, the perfusion function and the water return function of the endoscope can be performed at the same time, and the real-time flow can be conveniently and rapidly controlled; the pressure in the uterine cavity is ensured to be in a balanced state, complications caused by overlarge pressure in the uterine cavity are prevented, and the treatment effect of the endoscope is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an advanced component and an endoscope. Background Technology

[0002] Hysteroscopy is widely used in examinations and minimally invasive or non-invasive treatments. During endoscopic treatment, distending fluid needs to be injected into the uterine cavity to assist in the treatment. However, current endoscopes only have one passage for water inlet and outlet, making it impossible to simultaneously perform distending fluid inlet (inlet) and outlet. This requires separate inlet and outlet, which can cause unstable intrauterine pressure and prevent real-time and rapid flow adjustment. This makes it impossible to maintain intrauterine pressure balance and stability. Excessive intrauterine pressure can cause endometrial damage and excessive absorption of distending fluid, leading to postoperative complications. Utility Model Content

[0003] In view of this, the present invention provides an advanced component and an endoscope to solve the technical problem that water inlet and water outlet are difficult to perform simultaneously.

[0004] To solve the above problems, the technical solution of this utility model is implemented as follows:

[0005] An advanced assembly for use in an endoscope includes: a housing for insertion into a target site; an instrument port located at the distal end of the housing for at least instrument penetration and infusion of fluid into the target site; and a return port located on the housing and spaced apart from the instrument port, the return port being used at least to drain the infusion fluid from the target site; wherein an instrument tube is installed at the instrument port, the instrument tube being at least connected to a fluid supply device for infusing fluid into the target site; and a return pipe is installed at the return port, through which the infusion fluid from the target site is discharged.

[0006] In some embodiments, the advanced component further includes a backflow control device connected to the return pipe to control the return pipe to discharge the injection fluid from the target area.

[0007] In some embodiments, the return water inlet and the instrument inlet are located on the same plane, and the axis of the return water pipe is parallel to the axis of the instrument pipe.

[0008] In some embodiments, the cross-section of the housing perpendicular to the axial direction is circular, the return water inlet is opened on the circumferential side of the housing, and the axis of the return water inlet is parallel to the radial direction of the housing.

[0009] In some embodiments, multiple return water inlets are provided, and each return water inlet is circumferentially distributed along the axis of the housing; wherein, a return water pipe is installed at each return water inlet.

[0010] In some embodiments, the advanced component further includes: a camera module, wherein the housing has a module mounting hole, the camera module is installed in the module mounting hole and is at least partially exposed; a circuit board, connected to the camera module to supply power to at least the camera module, the circuit board being disposed outside the instrument tube and the return water pipe; wherein the module mounting hole and the instrument port are located on the same end face.

[0011] In some embodiments, the advanced component further includes: an illumination component, which is mounted adjacent to the camera module in the module mounting hole and is at least partially exposed; wherein the illumination component is electrically connected to the circuit board.

[0012] In some embodiments, a limiting block is further provided inside the housing, and the circuit board abuts against the limiting block; wherein the limiting block is located inside the module fixing hole.

[0013] This utility model embodiment also provides an endoscope, comprising: a tip assembly as described in any of the above claims; an insertion tube assembly, the tip assembly being connected to one end of the insertion tube assembly; and a handle portion, connected to the other end of the insertion tube assembly, for at least controlling the operation of the tip assembly; wherein the insertion tube assembly is disposed outside the tip assembly to at least accommodate a portion of the tip assembly.

[0014] In some embodiments, the insertion tube assembly includes an insertion tube, at least sleeved outside the return water pipe and the instrument tube, wherein the return water pipe and the instrument tube extend in the same direction as the insertion tube.

[0015] This utility model provides an advanced component and endoscope. The advanced component includes a housing, an instrument port, and a return water port. The housing is inserted into the target site. The instrument port is located at the distal end of the housing and is used for the passage of surgical instruments and the output of irrigation fluid to the target site. The return water port is located on the housing and spaced apart from the instrument port. By installing an instrument tube at the instrument port, and connecting the instrument tube to at least a fluid supply device, the irrigation fluid provided by the fluid supply device is delivered to the target site through the instrument tube. A return water pipe is installed at the return water port, through which the irrigation fluid in the target site is discharged. This configuration allows the advanced component to simultaneously perform irrigation and return water functions, enabling simultaneous water intake and output. This maintains pressure balance and stability at the target site, creating better conditions for surgery, effectively reducing the risk of postoperative complications, and improving the therapeutic effect of the endoscope using this advanced component. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the endoscope provided in an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the tip assembly and the insertion tube provided in an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of the structure of the first type of advanced component provided in this embodiment of the utility model;

[0019] Figure 4 A cross-sectional structural schematic diagram of the first type of front-end component provided in the embodiment of this utility model;

[0020] Figure 5 A schematic diagram of the structure of the second type of front-end component provided in this embodiment of the utility model;

[0021] Figure 6 A cross-sectional structural schematic diagram of the second type of front-end component provided in an embodiment of this utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the limiting block provided in an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Endoscope; 10. Tip assembly; 20. Insertion tube assembly; 30. Handle; 101. Housing; 102. Instrument port; 103. Water return port; 104. Liquid supply device; 105. Reflux control device; 106. Camera module; 107. Circuit board; 108. Illumination assembly; 1010. Module fixing hole; 1011. Limiting block; 1020. Instrument tube; 1030. Water return tube; 201. Insertion tube. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this utility model will not be described separately.

[0027] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0028] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0029] like Figure 1 and Figure 2 As shown, this utility model provides an advanced component 10, applied to an endoscope 1. During surgery, the advanced component 10 is typically inserted into the body first. The advanced component 10 includes a housing 101, an instrument port 102, and a return port 103. The housing 101 is used for insertion into the target site. The instrument port 102 is located at the distal end of the housing 101 to allow instruments to pass through and to output infusion fluid to the target site. The return port 103 is used to drain the infusion fluid from the target site. The return port 103 and the instrument port 102 are spaced apart on the housing 101. An instrument tube 1020 is installed at the instrument port 102, and the instrument tube 1020 is connected to a fluid supply device 104 to infuse fluid into the target site. A return pipe 1030 is installed at the return port 103, through which the infusion fluid at the target site is discharged.

[0030] The tip assembly 10 is typically inserted into the human body manually guided by the operator. The term "distal" in this document refers to the end of the tip assembly 10 that is first inserted into the human body, or the end that is furthest from the operator.

[0031] Understandably, the housing 101 of the tip assembly 10 has an instrument port 102. One end of the instrument tube 1020 is inserted into the housing 101 and connected to the instrument port 102. The instrument tube 1020 communicates with the outside through the instrument port 102. The other end of the instrument tube 1020 is connected to at least the liquid supply device 104. The liquid supply device 104 can inject liquid into the target location through the instrument tube 1020. At the same time, instruments used during examination or surgery can also be inserted into the target location through the instrument tube 1020 for operation. The instrument tube 1020 realizes the functions of injecting liquid and guiding the insertion of instruments, reducing the size of the tip assembly 10 and reducing the discomfort when the tip assembly 10 is inserted into the body.

[0032] Specifically, a return port 103 is provided on the housing 101, with the return port 103 and instrument port 102 spaced apart. One end of the return pipe 1030 is inserted into the housing 101 and connected to the return port 103. The return pipe 1030 communicates with the outside through the return port 103, allowing fluid from the target location to enter the return pipe 1030 from the return port 103 and then exit. Because the return pipe 1030 and instrument port 1020 are independently provided, when fluid is injected into the target location, the return pipe 1030 can simultaneously drain the fluid from the target location. Fluid infusion and drainage occur simultaneously, avoiding problems such as excessive fluid injection or untimely fluid drainage. This ensures that the pressure inside the uterine cavity remains balanced and stable, thereby facilitating the smooth conduct of examinations or surgeries at the target location.

[0033] This utility model provides an advanced component 10, applied to an endoscope 1, including a housing 101, an instrument port 102, and a return water port 103. The instrument port 102 is located at the distal end of the housing 101 to allow instruments to pass through and to deliver infusion fluid to the target area. The return water port 103 is used to discharge the infusion fluid from the target area. The return water port 103 and the instrument port 102 are spaced apart on the housing 101. An instrument tube 1020 is installed at the instrument port 102 and is connected to a fluid supply device 104 to infuse fluid into the target area. A return water pipe 1030 is installed at the return water port 103, through which the infusion fluid at the target area is discharged. By alternately positioning the instrument tube 1020 and the return water tube 1030, excess fluid can flow out through the return water tube 1030 while fluid is being injected into the target location. This allows the endoscope 1 to perform both irrigation and return water functions simultaneously, ensuring a balanced pressure within the uterine cavity, preventing excessive intrauterine pressure that could lead to complications, and improving the therapeutic effect of the endoscope 1. Furthermore, the instrument tube serves as both a guide for water injection and a guide device, eliminating the need for an additional return water structure. This simplifies the structure of the tip assembly 10, reduces its outer diameter, decreases operational difficulty, and reduces discomfort during insertion of the endoscope 1, thus improving the user experience.

[0034] In some embodiments, such as Figure 2 As shown, the advanced component 10 also includes a backflow control device 105, which is connected to the return water pipe 1030 to control the return water pipe 1030 to discharge the injection liquid in the target area. Understandably, one end of the return water pipe 1030 is connected to the backflow control device 105, and the other end is connected to the target location via the return water port 103. When it is necessary to discharge the liquid from the target location, activating the backflow control device 105 will discharge the liquid from the return water port 103 along the return water pipe 1030.

[0035] It should be noted that the reflux control device 105 here can be any device capable of draining fluid, such as a negative pressure regulator, as long as it can drain fluid from the target location; no further restrictions are imposed here. The reflux control device 105 enables the opening and closing of the drainage function and the regulation of the drainage flow rate, creating better conditions for the surgery.

[0036] This utility model embodiment provides a backflow control device 105 at one end of the return water pipe 1030. The backflow control device 105 changes whether the tip component 10 performs drainage work and the drainage flow rate, so as to discharge the liquid at the target location in a timely manner, improve the surgical conditions, and facilitate operation.

[0037] In some embodiments, such as Figure 3 and Figure 4 As shown, the return water inlet 103 and the instrument inlet 102 are located on the same plane, and the axis of the return water pipe 1030 is parallel to the axis of the instrument tube 1020. Understandably, the instrument inlet 102 and the return water inlet 103 are located on the same end face of the housing 101. The return water pipe 1030 and the instrument tube 1020 are inserted into the housing 101 and connected to the return water inlet 103 and the instrument inlet 102, respectively. At this time, the axis Y of the return water pipe 1030 and the axis X of the instrument tube 1020 are parallel to each other. That is to say, the return water pipe 1030 and the instrument tube 1020 are arranged parallel to each other. During use, the instrument tube 1020 and the return water pipe 1030 will not become entangled, ensuring that the interiors of the instrument tube 1020 and the return water pipe 1030 remain unobstructed. Liquid can be smoothly injected and discharged through the instrument tube 1020 and the return water pipe 1030. At the same time, the mutual interference between the return water and injection functions is avoided, further ensuring the stability of the pressure at the target location.

[0038] This embodiment of the utility model reduces the degree of mutual interference between the instrument tube 1020 and the return water pipe 1030 when they are working simultaneously by arranging the instrument tube 1020 and the return water pipe 1030 in parallel with each other, and maintains the stability of the state when the instrument tube 1020 and the return water pipe 1030 are working simultaneously, thereby ensuring the stability of the pressure at the target position.

[0039] In some embodiments, such as Figure 5and Figure 6 As shown, the cross section of the housing 101 perpendicular to the axial direction is circular, and the return water port 103 is opened on the circumferential side of the housing 101, and the axis Y of the return water port 103 is parallel to the radial direction of the housing 101. Understandably, the return water inlet 103 and the instrument inlet 102 can be located on different surfaces. For example, the return water inlet 103 is located on the circumferential side of the housing 101 and extends along the radial direction of the housing 101. That is, the axis Y of the return water inlet 103 is parallel to the radial direction of the housing 101. The return water inlet 103 is connected to the return water pipe 1030 inside the housing 101. The axis Z of the return water pipe 1030 is perpendicular to the axis Y of the return water inlet 103. That is, the return water pipe 1030 and the instrument pipe 1020 are arranged in parallel inside the housing 101. When the return water pipe 1030 extends to the return water inlet 103, it communicates with the return water inlet 103. At this time, since the return water inlet 103 is located on the circumferential side of the housing 101, the size of the end face where the instrument inlet 102 is located can be further reduced, which makes it easier to reduce the size of the tip assembly 10.

[0040] This embodiment of the utility model sets the return water inlet 103 on the circumferential side of the housing 101, which is on a different surface from the instrument port 102. The end face where the instrument port 102 is located does not need to reserve a position for opening the return water inlet 103, which is conducive to further reducing the size of the tip component 10, reducing the discomfort of the tip component 10 during the insertion of the human body, and improving the user experience of the product.

[0041] In some embodiments, multiple return ports 103 are provided, and each return port 103 is circumferentially distributed along the axis of the housing 101. Each return port 103 is equipped with a return pipe 1030. That is, multiple return ports 103 can be spaced around the axis of the housing 101 on its circumferential side surface, and each return port 103 is connected to a return pipe 1030. Liquid at the target location can be discharged simultaneously along multiple return pipes 1030, increasing the speed of water return and thus improving the water return effect.

[0042] Of course, multiple return water inlets 103 can also be equipped with connecting pipes, and then all connecting pipes can be connected to a single return water pipe 1030 for unified drainage, which helps to reduce the number of return water pipes 1030 inside the housing 101.

[0043] This utility model embodiment provides multiple water return ports 103 on the housing 101, enabling the multiple water return ports 103 to perform water return work simultaneously, thereby increasing the water return speed of the endoscope 1 during operation, timely draining the liquid from the target location, avoiding excessive liquid infusion, and further optimizing the water return function of the endoscope 1.

[0044] In some embodiments, such as Figure 3As shown, the advanced assembly 10 also includes a camera module 106 and a circuit board 107. A module mounting hole 1010 is provided on the housing 101. The camera module 106 is mounted in the module mounting hole 1010 and is at least partially exposed. The circuit board 107 is connected to the camera module 106 to at least supply power to the camera module 106. The circuit board 107 is located on the outside of the instrument tube 1020 and the return water tube 1030. The module mounting hole 1010 and the instrument port 102 are located on the same end face.

[0045] Understandably, a module fixing hole 1010 is also provided on the end face where the instrument port 102 is located. The camera module 106 is fixed in the module fixing hole 1010, and part of the camera module 106 protrudes from the module fixing hole 1010, so that the camera module 106 can clearly capture images of the target position. The other end of the camera module 106 is connected to the circuit board 107. The circuit board 107 provides power to the camera module 106 to maintain its normal operation. The circuit board 107 is located on the outside of the instrument tube 1020 and the return water pipe 1030, with the camera module 106 mounted on one end and extending along the axial direction of the instrument tube 1020 and the return water pipe 1030 on the other end.

[0046] Specifically, the part of the circuit board 107 that mounts the camera module 106 is a rigid board to ensure the stable installation of the camera module 106, while the part that extends along the axial direction of the return water pipe 1030 of the instrument tube 1020 is a flexible board that can bend with the instrument tube 1020 and the return water pipe 1030 to ensure the flexibility of the endoscope 1 inserted into the human body.

[0047] This embodiment of the invention provides a camera module 106 on the end face where the instrument port 102 is located. The camera module 106 captures images of the target location to facilitate observation of the target location and obtain information about the condition at the target location. At the same time, the operation of the instrument at the target location is more accurate, thus improving the surgical outcome.

[0048] In some embodiments, such as Figure 3 As shown, the front-end component 10 also includes an illumination component 108. The adjacent camera module 106 is installed in the module mounting hole 1010 and is at least partially exposed. The illumination component 108 is electrically connected to the circuit board 107. Understandably, an illumination component 108 is also provided at a position adjacent to the camera module 106. The illumination component 108 is fixed together with the camera module 106 in the module mounting hole 1010. The circuit board 107 is electrically connected to the illumination component 108 and supplies power to the illumination component 108. The light from the illumination component 108 passes through the module mounting hole 1010 and illuminates the target position, assisting the camera module 106 in taking pictures and improving the clarity of the image captured by the camera module 106.

[0049] Specifically, the housing 101 can be a transparent housing, allowing more light from the lighting component 108 to pass through the housing 101 and illuminate the target location, thereby expanding the illumination range of the lighting component 108 and improving the lighting effect.

[0050] It should be noted that one or more lighting components 108 can be provided, which are arranged adjacent to the camera module 106 and fixed in the module fixing hole 1010. The number of lighting components 108 is not further limited, as long as it can meet the lighting requirements for normal shooting of the camera module 106.

[0051] This embodiment of the invention provides an illumination component 108 positioned adjacent to the camera module 106, which illuminates the target location, ensuring clear and effective imaging of the camera module 106. This facilitates observation or surgical procedures by doctors, prevents errors in judgment and operation, and improves product performance.

[0052] In some embodiments, such as Figure 4 , Figure 6 and Figure 7 As shown, a limiting block 1011 is also provided inside the housing 101, and the circuit board 107 abuts against the limiting block 1011. The limiting block 1011 is located inside the module fixing hole 1010. Specifically, the part of the circuit board 107 that connects to the camera module 106 is a rigid board, and has a flexible board for transmitting power and control signals. The rigid board part of the circuit board 107 extends into the housing 101 along with the camera module 106. The limiting block 1011 is provided inside the module fixing hole 1010, and the edge of the rigid board part of the circuit board 107 abuts against the limiting block 1011, providing mounting support for the circuit board 107. At the same time, it can also limit the position of the camera module 106 in the module fixing hole 1010 and prevent the camera module 106 from moving around inside the housing 101.

[0053] This utility model embodiment provides a limiting block 1011 in the module fixing hole 1010, which allows the rigid part of the circuit board 107 to stably abut against the limiting block 1011, fixing the position of the camera module 106 in the module fixing hole 1010. This ensures the stability of the installation of the internal parts of the housing 101, prevents the parts from moving and colliding inside the housing 101 and causing damage, extends the service life of the product, and optimizes the performance of the product.

[0054] like Figure 1 and Figure 2As shown, this embodiment of the present invention also provides an endoscope 1, including a tip assembly 10, an insertion tube assembly 20, and a handle portion 30. The tip assembly 10 is connected to one end of the insertion tube assembly 20, and the handle portion 20 is connected to the other end of the insertion tube assembly 20, so as to at least control the operation of the tip assembly 10. The insertion tube assembly 20 is disposed outside the tip assembly 10 to at least accommodate a portion of the tip assembly 10.

[0055] Understandably, the tip assembly 10 is inserted at one end of the insertion tube assembly 20, and the other end of the insertion tube assembly 20 is connected to the handle 30. The tip assembly 10 extends inside the insertion tube assembly 20 to the handle 30. The handle 30 controls the working state of the tip assembly 10. The user can control the liquid injection and return water at the same time by operating the handle 30.

[0056] This embodiment of the invention extends the tip component 10 inside the insertion tube assembly 20 to the handle portion 30. The working state of the tip component 10 can be controlled simply by operating the handle portion 30, which simplifies the structure, facilitates operation, and optimizes the user experience.

[0057] In some embodiments, such as Figure 2 As shown, the insertion tube assembly 20 includes an insertion tube 201, which is at least sleeved on the outside of the return water tube 1030 and the instrument tube 1020. The return water tube 1030 and the instrument tube 1020 extend in the same direction as the insertion tube 201. Understandably, the tip assembly 10 is at least partially inserted inside the insertion tube 201. The instrument tube 1020, the return water tube 1030, and the circuit board 107 are located inside the insertion tube 201 and extend along its length. The circuit board 107 extends inside the insertion tube 201 to the handle portion 30 and is powered, supplying power to at least the camera module 106. Simultaneously, the return water tube 1030 extends to the handle portion 30 and connects to the reflux control device 105, and the instrument tube 1020 extends to the handle portion 30 and is at least connected to the liquid supply device 104. The insertion tube 201 integrates the components of the tip assembly 10 for ease of operation.

[0058] This embodiment of the invention integrates the components of the tip assembly 10 through the insertion tube 201, protecting these components and extending their service life. During use, the components of the tip assembly 10 can be inserted into the body along with the insertion tube 201, reducing operational difficulty, minimizing discomfort during insertion of the endoscope 1, and optimizing the user experience. Furthermore, the endoscope 1 has irrigation and return functions, allowing for simultaneous water intake and output, thus maintaining pressure balance and stability at the target site. This creates better conditions for surgery, effectively reducing the risk of postoperative complications and improving the therapeutic effect of the endoscope 1.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tip assembly for use with an endoscope, comprising: The advanced component includes: The housing is used for insertion into the target area; An instrument port is provided at the distal end of the housing to allow the instrument to pass through and to deliver infusion fluid to the target site. A return water inlet is provided on the housing and spaced apart from the instrument port. The return water inlet is at least used to discharge the infusion fluid in the target area. The instrument port is equipped with an instrument tube, which is connected to at least one liquid supply device to inject liquid into the target area; the return water port is equipped with a return water pipe, through which the injected liquid in the target area is discharged.

2. The tip assembly of claim 1, wherein, The advanced component also includes a reflux control device connected to the return water pipe to control the return water pipe to discharge the injection liquid in the target area.

3. The tip assembly of claim 1, wherein The return water inlet and the instrument inlet are located on the same plane, and the axis of the return water pipe is parallel to the axis of the instrument pipe.

4. The tip assembly of claim 1, wherein, The shell has a circular cross-section perpendicular to the axial direction, the return water inlet is opened on the circumferential side of the shell, and the axis of the return water inlet is parallel to the radial direction of the shell.

5. The tip assembly of claim 3 or 4, wherein, The return water inlets are provided in multiple ways, and each return water inlet is circumferentially distributed along the axis of the housing; wherein, each return water inlet is equipped with a return water pipe.

6. The tip assembly of claim 1, wherein, The advanced component also includes: A camera module, wherein the housing has a module mounting hole, the camera module is installed in the module mounting hole, and at least partially exposed; A circuit board, connected to the camera module, is provided with power to at least the camera module. The circuit board is disposed on the outside of the instrument tube and the return water pipe. The module fixing hole and the instrument port are located on the same end face.

7. The tip assembly of claim 6, wherein, The advanced component also includes: An illumination assembly is mounted adjacent to the camera module in the module mounting hole and is at least partially exposed; The lighting component is electrically connected to the circuit board.

8. The tip assembly of claim 7, wherein, A limiting block is also provided inside the housing, and the circuit board abuts against the limiting block; The limiting block is located inside the module fixing hole.

9. An endoscope characterized by comprising: include: The advanced component according to any one of claims 1-8; An insertion tube assembly, wherein the tip assembly is connected to one end of the insertion tube assembly; A handle is connected to the other end of the insertion tube assembly to at least control the operation of the tip assembly; The insertion tube assembly is disposed outside the tip assembly to accommodate at least a portion of the tip assembly.

10. The endoscope of claim 9, wherein, The insertion tube assembly includes: An insertion tube is fitted over at least the outside of the return water pipe and the instrument tube, the return water pipe and the instrument tube extending in the same direction as the insertion tube.

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