Endoscope

Abstract

The present invention relates to the technical field of medical devices, and provides an endoscope, comprising: a first mirror body; a second mirror body, supported at one end of the first mirror body; an outer sleeve, supported at the other end of the first mirror body; a positioning assembly, supported at the top of the second mirror body, away from the end of the first mirror body; an instrument tube, detachably supported on the outer sleeve, and one end thereof is aligned with the end of the outer sleeve away from the first mirror body, and the other end is detachably engaged with the positioning assembly; an imaging assembly, detachably arranged at the second mirror body and the inner wall of the outer sleeve, and the camera end is aligned with the end of the outer sleeve away from the first mirror body, so as to realize endoscopic imaging; an auxiliary assembly, detachably arranged at the first mirror body and the inner wall of the outer sleeve, and the operating end is aligned with the end of the outer sleeve away from the first mirror body, so as to realize imaging illumination. The present invention can replace instrument tubes, auxiliary assemblies and imaging assemblies of different specifications, improve the convenience of operation and applicability of the endoscope, and meet the use requirements in different scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an endoscope. Background Art

[0002] In the existing endoscope market, rigid endoscopes are of fixed specifications and sizes. During medical surgery, if the operator needs to use medical surgical instruments of different specifications and sizes, the specifications and sizes of the endoscope need to be changed. The replacement process is troublesome and cumbersome, which reduces the convenience of the surgery. In addition, hospitals generally do not prepare endoscopes of different specifications and sizes, which increases the overall cost.

[0003] During surgery, different patients need to use surgical instruments and endoscopes of different sizes according to the actual situation. It is also possible that the instruments need to be replaced with different sizes during the operation to complete the operation. Conventional endoscopes with fixed sizes cannot cope with instruments of different sizes and can only be used with this set, which is extremely inconvenient for surgery.

[0004] The imaging system of a conventional endoscope uses the structure and design of a physical optical endoscope, which has extremely high requirements for assembly and process, extremely high cost, and a cumbersome maintenance process with extremely high maintenance costs. Summary of the invention

[0005] The purpose of the present invention is to solve at least one technical problem in the background technology and provide an endoscope.

[0006] To achieve the above object, the present invention provides an endoscope, comprising:

[0007] First mirror body;

[0008] A second mirror body, supported on one end of the first mirror body;

[0009] An outer sleeve, supported at the other end of the first mirror body;

[0010] A positioning assembly, supported on the top of the second lens body and at one end away from the first lens body;

[0011] An instrument tube is detachably supported on the outer sleeve, and one end of the instrument tube is aligned with an end of the outer sleeve away from the first mirror body, and the other end is detachably engaged with the positioning assembly;

[0012] An imaging assembly is detachably arranged on the second mirror body and the inner wall of the outer sleeve, and the camera end is aligned with the end of the outer sleeve away from the first mirror body to achieve endoscopic imaging;

[0013] The auxiliary component is detachably arranged on the first lens body and the inner wall of the outer sleeve, and the operating end is aligned with the end of the outer sleeve away from the first lens body to achieve imaging lighting and camera end cleaning.

[0014] According to one aspect of the present invention, the outer sleeve is an arc-shaped plate, the instrument tube is a circular tube, a plurality of grooves for supporting components of the imaging component and the auxiliary component are provided on the inner wall of the arc-shaped plate, and the instrument tube is detachably supported on the inner wall of the arc-shaped plate.

[0015] According to one aspect of the present invention, the first mirror body comprises: a first mirror body body, a first mounting port and a first channel;

[0016] The first mounting opening is arranged at the bottom of the first lens body;

[0017] The first channel is arranged at the top of the first mirror body and is arranged opposite to the inner wall of the outer sleeve.

[0018] According to one aspect of the present invention, the second mirror body comprises: a second mirror body body, a second mounting port and a second channel;

[0019] The second mounting opening is arranged at the bottom of the second lens body;

[0020] The second channel is arranged on the top of the second lens body and is communicated with the first channel.

[0021] According to one aspect of the present invention, the imaging assembly comprises: an imaging system, an optical tube and a camera;

[0022] The imaging system is detachably mounted at the second channel;

[0023] The optical tube is supported in one of the grooves, the first channel and the second channel respectively;

[0024] The camera is connected to the imaging system through a cable and supported in the optical tube.

[0025] According to one aspect of the present invention, the auxiliary component comprises: a lighting system and an optical fiber;

[0026] The lighting system is installed on a branch of the first installation opening;

[0027] The optical fiber is connected to the lighting system and is laid on the inner wall of the outer sleeve, with its end aligned with the end of the outer sleeve.

[0028] According to one aspect of the present invention, the auxiliary assembly further comprises: a water delivery structure and a water and air pipe;

[0029] The water delivery structure is installed on another branch of the first installation port;

[0030] The water and gas pipe is supported in the other groove and the first channel respectively, and the end of the water and gas pipe is aligned with the end of the outer sleeve.

[0031] According to one aspect of the present invention, the positioning assembly includes: a connecting sleeve, a buckle switch assembly;

[0032] The connecting sleeve is detachably supported on the end of the top of the second lens body away from the first lens body;

[0033] The buckle switch assembly is arranged on the connecting sleeve and is used for clamping and releasing one end of the instrument tube extending into the connecting sleeve.

[0034] According to one aspect of the present invention, a connection block is provided at one end of the instrument tube facing the positioning assembly, and a slot is provided on the connection block, and the slot cooperates with the buckle switch assembly to be detachably connected.

[0035] According to one aspect of the present invention, a plurality of T-shaped mating blocks are spaced apart on the bottom outer wall of the instrument tube, a plurality of mating groove structures are correspondingly provided on the inner wall of the outer sleeve, and each of the T-shaped mating blocks is detachably slidably engaged with the corresponding mating groove structure.

[0036] According to one embodiment of the present invention, an endoscope comprises: a first body; a second body supported at one end of the first body; an outer sleeve supported at the other end of the first body; a positioning assembly supported at the top of the second body away from the end of the first body; an instrument tube detachably supported on the outer sleeve, with one end of the instrument tube aligned with the end of the outer sleeve away from the first body, and the other end detachably engaged with the positioning assembly; an imaging assembly detachably arranged at the second body and the inner wall of the outer sleeve, with the camera end aligned with the end of the outer sleeve away from the first body to achieve endoscopic imaging; an auxiliary assembly detachably arranged at the first body and the inner wall of the outer sleeve, with the operating end aligned with the end of the outer sleeve away from the first body to achieve imaging lighting and camera end cleaning. In this way, through the arrangement of the first mirror body, the second mirror body and the outer sleeve, the instrument tube containing the surgical instruments and the imaging components and auxiliary components used for optical imaging and auxiliary optical imaging can be detachably installed, so that the instrument tube, imaging components and auxiliary components can be disassembled according to the needs of medical surgery to replace or repair the surgical instruments, imaging components and auxiliary components. This can effectively improve the applicability of the endoscope, effectively reduce medical costs, and improve operational convenience and efficiency.

[0037] According to one solution of the present invention, the outer sleeve is an arc-shaped plate, that is, an arc-shaped plate half-enclosed on the outer wall of the instrument tube in the figure, the instrument tube is a circular tube, and a plurality of grooves for supporting components in the imaging assembly and the auxiliary assembly are provided on the inner wall of the arc-shaped plate, that is, each groove is provided on the inner wall of the arc-shaped plate, and is used to stably place a part of the structure in the imaging assembly and the auxiliary assembly, and the instrument tube is detachably supported on the inner wall of the arc-shaped plate. With such a configuration, when the instrument tube is supported on the inner wall of the arc-shaped plate, there is still a cavity gap formed by the above-mentioned grooves between the inner wall of the arc-shaped plate and the outer wall of the instrument tube, so that not only the above-mentioned grooves can be used to reasonably install the components in the imaging assembly and the auxiliary assembly, but also the stability of the installation of each component can be higher, and sliding offset and posture change will not occur, so as to ensure that the function and accuracy of the device can be guaranteed during use.

[0038] According to one solution of the present invention, the first mirror body includes: a first mirror body body, a first mounting port and a first channel; the first mounting port is arranged at the bottom of the first mirror body body; the first channel is arranged at the top of the first mirror body body and is arranged opposite to the inner wall of the outer sleeve. The second mirror body includes: a second mirror body body, a second mounting port and a second channel; the second mounting port is arranged at the bottom of the second mirror body body; the second channel is arranged at the top of the second mirror body body and is connected to the first channel. Such arrangement can make the structural arrangement of the first mirror body and the second mirror body reasonable and ingenious, and the functional components can be quickly assembled and disassembled through the first mirror body and the second mirror body, and the channel connecting the top of the first mirror body and the second mirror body smoothly transitions with the outer sleeve, so that the relevant pipeline components can be laid flat, ensuring the smoothness and neatness of the pipeline components, and ensuring the stability of use and service life.

[0039] According to one solution of the present invention, the imaging assembly includes: an imaging system, an optical tube and a camera; the imaging system is detachably mounted at the second channel; the optical tube is supported in one of the grooves, the first channel and the second channel respectively; the camera is connected to the imaging system through a cable and supported in the optical tube. With such a configuration, the imaging system and the camera can be disassembled and assembled separately, and can be disassembled, replaced or repaired as needed. This greatly solves the pain points of the cumbersome operation and high maintenance cost of traditional endoscopes when repairing and replacing physical optics, and enables the endoscope of the present invention to be matched with imaging systems of different viewing angles for flexible replacement and use, and the replacement cost and transformation cost are greatly reduced. In addition, through the support of the optical tube by the above-mentioned groove and the holding of the cable camera by the optical tube, the position of the camera is stable and reliable, and it will not be damaged by pressure, nor will it have posture deviation, thereby ensuring the stability of use and service life.

[0040] According to one solution of the present invention, the auxiliary component includes: a lighting system and an optical fiber; the lighting system is installed on a branch of the first installation port; the optical fiber is connected to the lighting system and laid on the inner wall of the outer sleeve, and its end is aligned with the end of the outer sleeve. Such an arrangement allows the lighting system and the optical fiber to be separately disassembled and assembled, and is convenient for disassembly, replacement or maintenance as needed, effectively ensuring the lighting effect of the above-mentioned imaging component during the endoscopic imaging process and ensuring the imaging clarity.

[0041] According to one solution of the present invention, the auxiliary component further includes: a water delivery structure and a water-air pipe; the water delivery structure is installed on another branch of the first installation port; the water-air pipe is supported in another groove and the first channel, and its end is aligned with the end of the outer sleeve. With such an arrangement, the path can be sprayed and cleaned with saline when the endoscope is performing endoscopic imaging and instrument operation through the water delivery structure and the water-air pipe, which can ensure that the camera can shoot clearer and more efficient images, make surgical treatment more accurate and correct, and ensure clear visualization of the surgical process as well as safety and reliability.

[0042] According to the solution of the present invention, the present invention can replace the instrument components in the instrument tube of different specifications and sizes through the endoscope design, so that the instruments of different specifications and sizes can be quickly and conveniently replaced during the operation, which greatly solves the pain point of the prior art that different endoscopes need to be used when using instruments of different specifications and sizes, and realizes that one endoscope can be quickly used with instruments of different specifications and sizes, which greatly saves the operation time and improves the convenience of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram showing a system structure layout of an endoscope according to an embodiment of the present invention;

[0044] Figure 2 A cross-sectional view schematically illustrates an endoscope according to an embodiment of the present invention;

[0045] Figure 3 A schematic diagram showing the structural arrangement of an instrument tube according to an embodiment of the present invention;

[0046] Figure 4 Schematically showing a front view of an instrument tube according to one embodiment of the present invention;

[0047] Figure 5 A front view of an outer sleeve according to an embodiment of the present invention is schematically shown. DETAILED DESCRIPTION

[0048] The present invention will now be discussed with reference to exemplary embodiments. It should be understood that the embodiments discussed are only to enable those skilled in the art to better understand and thus implement the present invention, rather than implying any limitation on the scope of the present invention.

[0049] As used herein, the term “including” and variations thereof are to be interpreted as open-ended terms meaning “including, but not limited to.” The term “based on” is to be interpreted as “based, at least in part, on.” The terms “one embodiment” and “an embodiment” are to be interpreted as “at least one embodiment.”

[0050] Figure 1 The system structure layout diagram of an endoscope according to an embodiment of the present invention is schematically shown. Figure 1 As shown, in this embodiment, the endoscope includes:

[0051] First lens body 1;

[0052] The second lens body 2 is supported at one end of the first lens body 1;

[0053] An outer sleeve 3 is supported at the other end of the first lens body 1;

[0054] A positioning assembly 4 is supported on the top of the second lens body 2 at one end away from the first lens body 1 (the right end in the figure);

[0055] The instrument tube 5 is detachably supported on the outer sleeve 3, and one end (the left end in the figure) is aligned with the end (the left end in the figure) of the outer sleeve 3 away from the first mirror body 1, and the other end (the right end in the figure) is detachably clamped with the positioning assembly 4.

[0056] The imaging assembly is detachably arranged on the inner wall of the second lens body 2 and the outer sleeve 3, and the camera end (the left end in the figure) is aligned with the end of the outer sleeve 3 away from the first lens body 1 to achieve endoscopic imaging;

[0057] The auxiliary component is detachably arranged on the inner wall of the first mirror body 1 and the outer sleeve 3, and the operating end is aligned with the end of the outer sleeve 3 away from the first mirror body 1, so as to realize imaging lighting and cleaning of the camera end. In this way, the instrument tube 5 for containing surgical instruments and the imaging components and auxiliary components for optical imaging and auxiliary optical imaging can be detachably installed through the arrangement of the first mirror body 1, the second mirror body 2 and the outer sleeve 3, so that the instrument tube 5, the imaging components and the auxiliary components can be disassembled according to the needs of medical surgery to replace or repair the surgical instruments, the imaging components and the auxiliary components, so as to effectively improve the applicability of the endoscope, effectively reduce medical costs, and improve the convenience and efficiency of operation.

[0058] Furthermore, if Figure 1As shown, in this embodiment, the outer sleeve 3 is an arc-shaped plate, that is, an arc-shaped plate half-enclosed on the outer wall of the instrument tube 5 in the figure, and the instrument tube 5 is a circular tube. The inner wall of the arc-shaped plate is provided with a plurality of grooves (not shown in the figure) for supporting components in the imaging assembly and the auxiliary assembly, that is, each groove is provided on the inner wall of the arc-shaped plate, and is used to stably place a part of the structure in the imaging assembly and the auxiliary assembly, and the instrument tube 5 is detachably supported on the inner wall of the arc-shaped plate. In this way, when the instrument tube 5 is supported on the inner wall of the arc-shaped plate, there is still a cavity gap formed by the above-mentioned grooves between the inner wall of the arc-shaped plate and the outer wall of the instrument tube 5, so that not only the above-mentioned grooves can play a role in the reasonable installation of the components in the imaging assembly and the auxiliary assembly, but also the stability of the installation of each component can be higher, and no sliding offset and posture change will occur, so as to ensure that the function and accuracy of the device can be guaranteed during use.

[0059] Furthermore, if Figure 1 As shown, in this embodiment, the first lens body 1 includes: a first lens body body 6, a first mounting opening 7 and a first channel 8;

[0060] The first mounting opening 7 is arranged at the bottom of the first lens body 6;

[0061] The first channel 8 is disposed at the top of the first lens body 6 and is disposed opposite to the inner wall of the outer sleeve 3 .

[0062] Furthermore, if Figure 1 As shown, in this embodiment, the second lens body 2 includes: a second lens body body 9, a second mounting opening 10 and a second channel 11;

[0063] The second mounting opening 10 is arranged at the bottom of the second lens body 9;

[0064] The second channel 11 is arranged at the top of the second lens body 9 and is connected to the first channel 8. With such arrangement, the structural arrangement of the first lens body 1 and the second lens body 2 can be reasonable and ingenious, the functional components can be quickly assembled and disassembled through the first lens body 1 and the second lens body 2, and the channel connected at the top of the first lens body 1 and the second lens body 2 is smoothly transitioned with the outer sleeve 3, so that the relevant pipeline components can be laid flat, ensuring the smoothness and neatness of the pipeline components, and ensuring the stability of use and service life.

[0065] Further, Figure 2 Schematically shows a cross-sectional view of an endoscope according to an embodiment of the present invention. Figure 1 and Figure 2 As shown, in this embodiment, the imaging assembly includes: an imaging system 12, an optical tube 13 and a camera (not shown in the figure) and a display 22;

[0066] The imaging system 12 is detachably mounted at the second channel 11;

[0067] The optical tube 13 is supported in one of the grooves, the first channel 8 and the second channel 11 respectively.

[0068] The camera is connected to the imaging system 12 through a cable and supported in the optical tube 13. With this arrangement, the imaging system 12 and the camera can be disassembled and assembled separately, and can be disassembled, replaced or repaired as needed. This greatly solves the pain points of cumbersome operations and high maintenance costs of traditional endoscopes when repairing and replacing physical optics, and enables the endoscope of the present invention to be matched with imaging systems of different viewing angles for flexible replacement and use, greatly reducing replacement and transformation costs. In addition, through the support of the optical tube 13 by the above-mentioned groove, and then through the optical tube 13 to contain the cable camera, the position of the camera is stable and secure, and it will not be damaged by pressure, and there will be no posture deviation, ensuring the stability of use and service life.

[0069] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the auxiliary components include: a lighting system 14 and an optical fiber;

[0070] The lighting system 14 is installed on a branch of the first installation port 7; that is, the first installation port 7 can be provided with multiple branches according to needs, and each branch is used to install different functional components. Each branch is to simply cut and divide the first installation port 7. For example, two branches are to divide the first installation port 7 into two, forming two installation ports (i.e. branches) for installing different functional components.

[0071] The optical fiber is connected to the lighting system 14 and is laid on the inner wall of the outer tube 3, with its end aligned with the end of the outer tube 3. This arrangement allows the lighting system 14 and the optical fiber to be separately disassembled and assembled, making it convenient to disassemble, replace or overhaul as needed, effectively ensuring the lighting effect of the above-mentioned imaging components during endoscopic imaging and ensuring imaging clarity.

[0072] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the auxiliary component also includes: a water delivery structure 23 and a water and air pipe 15;

[0073] The water delivery structure is installed on another branch of the first installation port 7;

[0074] The water-gas tube 15 is supported in another groove and the first channel 8, and its end is aligned with the end of the outer sleeve 3. In this way, the water-gas tube 15 can be used to spray and clean the path with saline during endoscopic imaging and instrument operation, so that the camera can shoot clearer and more efficient imaging, make surgical treatment more accurate and correct, and ensure clear visualization and safety and reliability of the surgical process.

[0075] Furthermore, if Figure 1 and Figure 2 As shown, in this embodiment, the positioning assembly 4 includes: a connecting sleeve 16, a buckle switch assembly 17;

[0076] The connecting sleeve 16 is detachably supported at the end of the top of the second lens body 2 away from the first lens body 1 (ie, the right end of the top of the second lens body).

[0077] The buckle switch assembly 17 is arranged on the connection sleeve 16, and is used to clamp and release one end of the instrument tube 5 inserted into the connection sleeve 16. In this embodiment, for example, a through groove is arranged on the connection sleeve 16, and the buckle in the buckle switch assembly 17 can move up and down at the through groove. When moving down, the buckle clamps the end of the instrument tube 5 inserted into the inside of the connection sleeve 16, and then the buckle pin is locked on the outside of the connection sleeve 16 by the pin in the buckle switch assembly 17 to fix the position of the buckle, so that the position of the instrument tube 5 is clamped and immovable. When the instrument tube 5 needs to be disassembled, the pin is pulled out so that the buckle can move up to release the instrument tube 5. At this time, the instrument tube 5 can be pulled out from the connection sleeve 16 to realize the disassembly of the instrument tube 5. Such a structure is simple and reliable, and the operation is convenient and quick.

[0078] Further, Figure 3 The structural arrangement diagram of the instrument tube according to one embodiment of the present invention is schematically shown. Figure 3 As shown, in this embodiment, a connection block 18 is provided at one end of the instrument tube 5 facing the positioning assembly 4, and a clamping groove 19 is provided on the connection block 18, and the clamping groove 19 is detachably connected with the clamping switch assembly 17. In this way, when the connection block 18 at the right end of the instrument tube 5 is inserted into the connection sleeve 16, the clamping groove 19 on the connection block 18 can correspond to the clamp in the clamping switch assembly 17, for example, and at this time, the clamp is moved down and inserted into the clamping groove 19 so that the two are clamped, so that the instrument tube 5 can be quickly positioned, so that the operation is simple and fast, and no complex structure and complex operation are required, thereby improving the efficiency of disassembly and assembly.

[0079] Further, Figure 4 Schematically showing a front view of an instrument tube according to one embodiment of the present invention; Figure 5 Schematically shows a front view of an outer sleeve according to an embodiment of the present invention. Figure 3 and Figure 4As shown, in the present embodiment, a plurality of T-shaped mating blocks 20 are arranged at intervals on the bottom outer wall of the instrument tube 5, and a plurality of mating groove structures 21 are correspondingly provided on the inner wall of the outer sleeve 3. Each T-shaped mating block 20 is detachably slidably engaged with the corresponding mating groove structure 21, that is, when the T-shaped mating block 20 is aligned with the mating groove structure 21 by moving the instrument tube 5, the T-shaped mating block 20 is engaged with the corresponding mating groove structure 21 by moving the instrument tube 5 forward and backward, so that the instrument tube 5 can be stably supported on the inner wall of the outer sleeve 3.

[0080] According to the above scheme of the present invention, the present invention can replace the instrument components in the instrument tube of different specifications and sizes through the endoscope design, so that the instruments of different specifications and sizes can be quickly and conveniently replaced during the operation, which greatly solves the pain point of the prior art that different endoscopes need to be used when using instruments of different specifications and sizes, and realizes that one endoscope can be quickly used with instruments of different specifications and sizes, which greatly saves the operation time and improves the convenience of the operator.

[0081] The present invention can quickly repair or replace the imaging system part of the endoscope through an imaging system handle (i.e., the imaging system), which greatly solves the pain points of cumbersome operations and high maintenance costs when repairing and replacing physical optics of traditional endoscopes.

[0082] The advantage of designing the endoscope of the present invention as a replaceable imaging system is that it can be flexibly replaced and used with imaging systems of different viewing angles, and the replacement cost and modification cost are greatly reduced.

[0083] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An endoscope, characterized in that include: First lens body (1); A second mirror body (2) supported on one end of the first mirror body (1); An outer sleeve (3) supported on the other end of the first lens body (1); A positioning assembly (4) supported on the top of the second lens body (2) at an end away from the first lens body; An instrument tube (5) is detachably supported on the outer sleeve (3), one end of which is aligned with an end of the outer sleeve (3) away from the first mirror body (1), and the other end of which is detachably engaged with the positioning assembly (4); An imaging component is detachably arranged on the inner wall of the second mirror body (2) and the outer sleeve (3), and the camera end is aligned with an end of the outer sleeve (3) away from the first mirror body (1), so as to realize endoscopic imaging; An auxiliary component is detachably arranged on the inner wall of the first lens body (1) and the outer sleeve (3), and the operating end is aligned with the end of the outer sleeve (3) away from the first lens body (1), so as to realize imaging illumination and camera end cleaning; The outer sleeve is an arc-shaped plate, the instrument tube is a circular tube, a plurality of grooves for supporting components in the imaging component and the auxiliary component are arranged on the inner wall of the arc-shaped plate, and the instrument tube is detachably supported on the inner wall of the arc-shaped plate.

2. The endoscope according to claim 1, characterized in that The first mirror body (1) comprises: a first mirror body body (6), a first mounting opening (7) and a first channel (8); The first mounting opening (7) is arranged at the bottom of the first lens body (6); The first channel (8) is arranged at the top of the first mirror body (6) and is arranged opposite to the inner wall of the outer sleeve (3).

3. The endoscope according to claim 2, characterized in that The second mirror body (2) comprises: a second mirror body body (9), a second mounting opening (10) and a second channel (11); The second mounting opening (10) is arranged at the bottom of the second lens body (9); The second channel (11) is arranged at the top of the second lens body (9) and is communicated with the first channel (8).

4. The endoscope according to claim 3, characterized in that The imaging component comprises: an imaging system (12), an optical tube (13) and a camera; The imaging system is detachably mounted at the second channel (11); The optical tube (13) is supported in one of the grooves, the first channel (8) and the second channel (11) respectively; The camera is connected to the imaging system (12) via a cable and is supported in the optical tube (13).

5. The endoscope according to claim 2, characterized in that: The auxiliary components include: a lighting system (14) and an optical fiber; The lighting system (14) is installed on a branch of the first installation opening (7); The optical fiber is connected to the lighting system (14) and is laid on the inner wall of the outer sleeve (3), with its end aligned with the end of the outer sleeve (3).

6. The endoscope according to claim 2, characterized in that: The auxiliary components also include: a water delivery structure and a water and air pipe (15); The water delivery structure is installed on another branch of the first installation opening (7); The water and gas pipe (15) is supported in the other groove and the first channel (8) respectively, and its end is aligned with the end of the outer sleeve (3).

7. The endoscope according to claim 1, characterized in that: The positioning assembly (4) comprises: a connecting sleeve (16) and a snap switch assembly (17); The connecting sleeve (16) is detachably supported on the top of the second lens body (2) and at an end thereof away from the first lens body (1); The buckle switch assembly (17) is arranged on the connecting sleeve (16) and is used for clamping and releasing one end of the instrument tube (5) extending into the connecting sleeve (16).

8. The endoscope according to claim 7, characterized in that A connecting block (18) is provided at one end of the instrument tube (5) facing the positioning assembly (4), and a clamping groove (19) is provided on the connecting block (18). The clamping groove (19) cooperates with the buckle switch assembly (17) to be detachably connected.

9. The endoscope according to any one of claims 1 to 8, characterized in that: A plurality of T-shaped matching blocks (20) are arranged at intervals on the bottom outer wall of the instrument tube (5), and a plurality of matching groove structures are correspondingly arranged on the inner wall of the outer sleeve (3), and each of the T-shaped matching blocks (20) is detachably slidably engaged with the corresponding matching groove structure.

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