Endoscope system

Abstract

The endoscope system comprises a front-end working part and a rear-end control system. The front-end working part comprises a working sheath and a handle, an endoscope channel, an instrument channel and a fluid channel are arranged in the working sheath, and an angle beta is formed between the central line of the far end of the endoscope channel and the central line of the working sheath; the far end of the endoscope working part is coaxially arranged at the far end of the endoscope channel, and the angle beta is formed between the observation angle of the camera module of the endoscope working part and the center line of the working sheath. According to the endoscope system, by adjusting the angle of the far end of the endoscope channel, the actual observation angle of the 0-degree camera module can be conveniently adjusted, various clinical observation angle requirements are met, the angle of the camera module does not need to be adjusted, and clinical angle adjustment is very convenient.

Description

Technical Field

[0001] The utility model relates to an endoscope system, in particular to an electronic endoscope system with adjustable observation angle. Background Art

[0002] With the development of endoscopic technology, minimally invasive surgery has gradually become popular in various departments. For example, urology, hepatobiliary surgery, gynecology and other departments have begun to perform minimally invasive endoscopic operations in diagnosis and treatment. In particular, with the development of electronic endoscopes, due to their ability to achieve miniaturization and the arbitrary combination of soft and hard endoscopes, electronic endoscopes, especially disposable electronic endoscopes, have been gradually promoted and applied in clinical applications, especially in clinical applications of urology and gynecology departments. Various electronic endoscopes such as disposable cystoscopes, disposable ureteroscopes, and disposable hysteroscopes have gradually become popular in clinical applications.

[0003] The core difference between electronic endoscopes and traditional optical endoscopes is that electronic endoscopes place the camera module in front of the observation position, place hardware such as the decoding board in the back through signal lines, and use simple detachable connection methods such as USB and Type-C to detachably connect the front-end working part and the back-end control system.

[0004] Since electronic endoscopes place the entire camera module in front of the head end, due to the limitations of the camera module's patch process, the commonly used direct or vertical observation angles are 0° or 90°. Traditional optical endoscopes, through the design of optical routes, can have not only the 0° direct observation angle, but also the commonly used clinical observation angles of 30°, 70°, etc.

[0005] Therefore, the purpose of this application is to solve the problem of the single observation angle of the current electronic endoscope and to improve the existing endoscope system. Summary of the Invention

[0006] The endoscope system of the utility model takes advantage of the small size of the front-end camera module of the electronic endoscope and realizes the adjustment of the observation angle of the electronic endoscope through the angle design of the endoscope channel at the head end.

[0007] The endoscope system of the present invention is characterized in that: the endoscope system 100 comprises a front-end working part 1 and a back-end control system 2;

[0008] A. The front working portion 1 comprises a working sheath 11 and a handle 12, wherein the working sheath 11 is disposed at the distal end of the handle 12;

[0009] B. The working sheath 11 is provided with an endoscope channel 11-1, an instrument channel 11-2 and a fluid channel 11-3; the proximal end of the handle 12 is provided with an endoscope connection mechanism 12-1, an instrument inlet and outlet mechanism 12-2, and a fluid inlet and outlet mechanism 12-3;

[0010] C. An endoscope working portion 11-11 is disposed in the endoscope channel 11-1, and the distal centerline of the endoscope channel 11-1 forms an angle β with the centerline of the working sheath 11; the distal end of the endoscope working portion 11-11 is coaxially disposed at the distal end of the endoscope channel 11-1, and the observation angle of the camera module 11-11-1 of the endoscope working portion 11-11 forms an angle β with the centerline of the working sheath 11;

[0011] C. The back-end control system 2 includes a working part connection terminal 21, a control system 22 and a power circuit system 23;

[0012] D. During operation, the working part connection end 21 is connected to the endoscope connection mechanism 12-1, and the endoscope working part 11-11 is connected to the control system 22 via the power circuit system 23 for real-time image display. The observation angle of the camera module 11-11-1 is at an angle β to the center line of the working sheath (11).

[0013] Because the endoscope working part 11-11 adopts the technical solution of an electronic endoscope, the structure of the endoscope working part 11-11 includes a small-sized camera module 11-11-1 set at the distal end and a soft signal line 11-11-2 connected to the rear end of the camera module 11-11-1. Therefore, even if the endoscope channel 11-1 has a bend or slope, the camera module 11-11-1 can be coaxially set at the distal end of the endoscope channel 11-1, and the signal line 11-11-2 can be arranged along the direction of the endoscope channel 11-1. Therefore, when the distal center line of the endoscope channel 11-1 and the center line of the working sheath 11 are set to a certain angle as needed, the observation angle of the camera module 11-11-1 also changes with the angle of the distal end of the endoscope channel 11-1, thereby changing the observation angle of the endoscope working part 11-11. The endoscope system of the present invention can easily adjust the actual observation angle of the camera module 11-11-1 to 0° by adjusting the angle of the distal end of the endoscope channel 11-1, thereby meeting various clinical observation angle requirements without adjusting the angle of the camera module 11-11-1 itself, and the clinical angle adjustment is very convenient.

[0014] The β angle range is 0° to 70°. According to clinical needs, the β angle range is usually 0° to 70°.

[0015] A reinforcing connection mechanism 1-2 is provided between the front-end working part 1 and the back-end control system 2, and the reinforcing connection mechanism 1-2 strengthens the connection between the working part connection end 21 and the endoscope connection mechanism 12-1. In clinical use, in instruments such as disposable cystoscopes and disposable ureteroscopes, the front-end working part 1 provided with the endoscope working part 11-11 is usually disposable and therefore needs to be replaced frequently. To facilitate replacement of the front-end working part 1, the connection between the working part connection end 21 and the endoscope connection mechanism 12-1 is usually a USB, Type-C or other easy-to-plug connection method. Since the contact of the above connection method is usually a planar contact and does not have a large connection force, during clinical use, the connection between the working part connection end 21 and the endoscope connection mechanism 12-1 may accidentally loosen due to various circumstances such as back and forth movement during operation and accidental contact by external force. The reinforced connection mechanism 1 - 2 increases the connection firmness between the working part connection end 21 and the endoscope connection mechanism 12 - 1 through an additional fixing effect, thereby effectively avoiding the accidental loosening of the interface during clinical procedures.

[0016] The reinforcing connecting mechanism 1-2 is a detachable connecting mechanism. In order to facilitate the replacement of the front end during the use of the disposable electronic endoscope, the reinforcing connecting mechanism 1-2 is usually a detachable connecting mechanism.

[0017] The reinforcing connection mechanism 1-2 is a threaded reinforcing connection mechanism, and / or a concave-convex snap-fit ​​reinforcing connection mechanism, and / or an interference fit connection mechanism. The applicant only lists the above three reinforcing connection methods. In actual applications, those skilled in the art can design different specific reinforcing connection structures as needed, or combine multiple connection structures for use. The applicant does not provide examples one by one here, but they all fall within the scope of protection of this application.

[0018] The reinforcing connection mechanism 1-2 is a concave-convex card-fitting reinforcing connection mechanism 1-2-1; the concave-convex card-fitting reinforcing connection mechanism 1-2-1 includes a positioning groove 1-2-11 and a positioning block 1-2-12, and the positioning block 1-2-12 is embedded in the positioning groove 1-2-11 to form a reinforcing connection. In a specific application, the positioning groove 1-2-11 can be set on the endoscope connection mechanism 12-1, and the positioning block 1-2-12 can be set on the working part connection end 21; or the positioning groove 1-2-11 can be set on the working part connection end 21, and the positioning block 1-2-12 can be set on the endoscope connection mechanism 12-1; the positioning block 1-2-12 is embedded in the positioning groove 1-2-11 to form the reinforcing connection mechanism 1-2, firmly connecting the working part connection end 21 and the endoscope connection mechanism 12-1.

[0019] A sealing mechanism 12-21 is provided at the instrument entry and exit mechanism 12-2. When the endoscope system with a reinforced connection mechanism of the present invention is used in clinical operations such as urology where fluids enter and exit a body cavity, a sealing mechanism 12-21 can be provided at the instrument entry and exit mechanism 12-2. When an instrument enters and exits the instrument channel 11-2 through the instrument entry and exit mechanism 12-2, the sealing mechanism 12-21 acts as a seal to prevent fluids from overflowing from the outlet of the instrument entry and exit mechanism 12-2 during operation.

[0020] The sealing mechanism 12-21 is detachably mounted on the instrument access mechanism 12-2. The sealing mechanism 12-21 can be formed as a separate component and detachably connected to the proximal end of the instrument access mechanism 12-2 via a Luer connector or other means. This detachable connection allows the sealing mechanism 12-21 to be replaced during use.

[0021] The sealing mechanism 12-21 is a one-way sealing valve 12-21-1. The one-way sealing valve 12-21-1 is generally designed as a single-flap or multi-flap silicone valve. With this one-way valve design, when the device is removed, the internal fluid or gas can reset the one-way sealing valve 12-21-1, still providing a good sealing effect and acting as an occluder.

[0022] The fluid enters and exits the body cavity through the same fluid channel 11-3. The fluid inlet and outlet mechanism 12-3 is provided with a three-way control valve 12-31. The three-way control valve 12-31 controls the entry, discharge, and sealing of the fluid in the body cavity. With this design of a single fluid channel, only one fluid inlet and outlet mechanism 12-3 is required on the handle 12. The three-way control valve 12-31 is then used to control the state of the fluid, such as water inlet, water outlet, or all-sealed state. This design structure is very simple and does not affect hand movements during clinical application.

[0023] The three-way control valve 12-31 is detachably arranged at the fluid inlet and outlet mechanism 12-3. The three-way control valve 12-31 can be made into an independent component and detachably connected to the proximal end of the fluid inlet and outlet mechanism 12-3 by means of a Luer connector or the like.

[0024] The handle 12 is further provided with a gripping portion 12-4, which facilitates the hand to more stably operate the endoscope system of the present invention during use.

[0025] The grip portion 12-4 includes a trigger position 12-41 and a thumb-and-thumb baffle 12-42. The trigger position 12-41 is typically a smooth annular structure located at the distal end of the endoscope connecting mechanism 12-1 near the endoscope connecting mechanism 12-1, allowing for insertion of a finger. The thumb-and-thumb baffle 12-42 is located between the endoscope connecting mechanism 12-1 and the instrument entry and exit mechanism 12-2. The thumb-and-thumb baffle 12-42 is a smooth inner arc-shaped structure that can be placed against the thumb near the thumb's base to provide a secure fit. The coordination between the trigger position 12-41 and the thumb-and-thumb baffle 12-42 allows for a very comfortable grip during clinical use.

[0026] The endoscope connection mechanism 12-1, the instrument entry and exit mechanism 12-2, and the fluid entry and exit mechanism 12-3 are arranged in the same plane along the axial direction of the working sheath 11. The endoscope connection mechanism 12-1 and the fluid entry and exit mechanism 12-3 are usually arranged on the upper and lower sides of the instrument entry and exit mechanism 12-2, and the three are arranged in the same plane along the axial direction of the working sheath 11. This arrangement in the same longitudinal plane effectively solves the problem of mutual influence between hand movements and instrument entry and exit operations in clinical applications caused by the horizontal arrangement of the water inlet pipe, water outlet pipe, and instrument entry and exit mechanism in existing disposable endoscope systems and the vertical arrangement of the endoscope connection mechanism 12-1.

[0027] The working unit connection end 21 and the endoscope connection mechanism 12-1 are detachably connected via a Type-C connector. The Type-C connector has become an internationally accepted connection method, offering numerous advantages such as non-directionality and easy plugging and unplugging. In practical applications, the connection between the working unit connection end 21 and the endoscope connection mechanism 12-1 can also be via other connection methods, such as USB or gold finger connectors. While the applicant will not provide specific examples here, these methods fall within the scope of this application.

[0028] During clinical use, an appropriate endoscope system of the present invention with the β angle is selected as needed, the working portion connection end 21 is held and aligned with the endoscope connection mechanism 12-1 for connection, and then the working portion connection end 21 is continuously pushed forward. The positioning block 1-2-12 is embedded in the positioning groove 1-2-11 and locked to form the reinforced connection mechanism 1-2, further firmly connecting the working portion connection end 21 and the endoscope connection mechanism 12-1. The endoscope working portion 11-11 is connected to the control system 22 via the power supply circuit system 23 for real-time image display.

[0029] The endoscope system of the present invention comprises a front-end working part 1 and a back-end control system 2, with a reinforced connection mechanism 1-2 disposed between the front-end working part 1 and the back-end control system 2. The front-end working part 1 comprises a working sheath 11 and a handle 12. The working sheath 11 is provided with an endoscope channel 11-1, an instrument channel 11-2, and a fluid channel 11-3. The distal centerline of the endoscope channel 11-1 forms an angle β with the centerline of the working sheath 11. The distal end of the endoscope working part 11-11 is coaxially disposed at the distal end of the endoscope channel 11-1, and the viewing angle of the camera module 11-11-1 of the endoscope working part 11-11 forms an angle β with the centerline of the working sheath 11. The proximal end of the handle 12 is provided with an endoscope connection mechanism 12-1, an instrument entry and exit mechanism 12-2, and a fluid entry and exit mechanism 12-3. The instrument entry and exit mechanism 12-2 is provided with the sealing mechanism 12-21. The back-end control system 2 includes a working part connection terminal 21, a control system 22, and a power circuit system 23. The endoscope system of the present invention can easily adjust the actual observation angle of the camera module 11-11-1 from 0° by adjusting the angle of the distal end of the endoscope channel 11-1, thereby meeting various clinical observation angle requirements without having to adjust the angle of the camera module 11-11-1 itself, making clinical angle adjustment very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the three-dimensional structure of the front end working part of the endoscope system of the present invention when observing at 0°.

[0031] Figure 2 yes Figure 1 sectional view of .

[0032] Figure 2-1 yes Figure 2 Enlarged view of point A.

[0033] Figure 2-2 yes Figure 2 Enlarged view of point B.

[0034] Figure 3 It is a schematic diagram of the structure when observed from the β angle.

[0035] Figure 3-1 yes Figure 3 Enlarged view of point C.

[0036] Figure 4 It is a structural diagram of the front working part including a three-way control valve and a sealing mechanism.

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the endoscope system of the present invention.

[0038] Figure 5-1yes Figure 5 DD cross-sectional view.

[0039] Figure 5-2 yes Figure 5 EE cross-sectional view.

[0040] Figure 6 yes Figure 5 Schematic diagram of the three-way control valve and sealing mechanism when disassembled.

[0041] Figure 7 It is a schematic diagram of the structure when holding it in the forward direction.

[0042] Figure 7-1 It is a schematic diagram of the structure when held in reverse.

[0043] In the above figure:

[0044] 100 is an endoscope system of the present invention.

[0045] 1 is the front working part, 2 is the back control system, and 1-2 is the strengthening connection mechanism.

[0046] 11 is a working sheath, 12 is a handle; 21 is a working part connection end, 22 is a control system, and 23 is a power circuit system.

[0047] 11-1 is the endoscope channel, 11-2 is the instrument channel, 11-3 is the fluid channel, 11-4 is the positioning end; 11-11 is the endoscope working part

[0048] 12-1 is the endoscope connection mechanism, 12-2 is the instrument entry and exit mechanism, 12-3 is the fluid entry and exit mechanism, 12-4 is the gripping part; 12-21 is the sealing mechanism, 12-31 is the three-way control valve, 12-41 is the trigger position, and 12-42 is the thumb-mouth baffle.

[0049] 1-2-11 is the positioning groove, 1-2-12 is the positioning block, 11-11-1 is the camera module, 11-11-2 is the signal line, and 12-21-1 is the one-way sealing valve.

[0050] β is the angle between the distal centerline of the endoscope channel and the centerline of the working sheath. DETAILED DESCRIPTION

[0051] Example: Endoscopic system of the present invention

[0052] refer to Figure 1 to Figure 7-1 The endoscope system in this embodiment includes a front-end working part 1 and a back-end control system 2.

[0053] refer to Figure 1 to Figure 3-1 The front end working part 1 includes a working sheath 11 and a handle 12 , and the working sheath 11 is arranged at the distal end of the handle 12 .

[0054] An endoscope channel 11-1, an instrument channel 11-2 and a fluid channel 11-3 are provided in the working sheath 11. In this embodiment, a positioning end 11-4 is further provided at the distal end of the working sheath 11, and the instrument channel 11-2 and the fluid channel 11-3 adopt the same channel; the distal ends of the endoscope channel 11-1, the instrument channel 11-2 and the fluid channel 11-3 are fixed on the positioning end 11-4; the proximal end of the handle 12 is provided with an endoscope connection mechanism 12-1, an instrument entry and exit mechanism 12-2, and a fluid entry and exit mechanism 12-3.

[0055] refer to Figure 1 to Figure 3-1 An endoscope working part 11-11 is provided in the endoscope channel 11-1, and the distal center line of the endoscope channel 11-1 forms an angle β with the center line of the working sheath 11; the distal end of the endoscope working part 11-11 is coaxially arranged at the distal end of the endoscope channel 11-1, and the observation angle of the camera module 11-11-1 of the endoscope working part 11-11 forms an angle β with the center line of the working sheath 11.

[0056] The back-end control system 2 includes a working part connection terminal 21 , a control system 22 and a power circuit system 23 .

[0057] During operation, the working part connection end 21 is connected to the endoscope connection mechanism 12-1, and the endoscope working part 11-11 is connected to the control system 22 via the power circuit system 23 for real-time image display. The observation angle of the camera module 11-11-1 is at an angle β to the center line of the working sheath (11).

[0058] In this embodiment, the endoscope working part 11-11 adopts the technical solution of an electronic endoscope. Therefore, the structure of the endoscope working part 11-11 includes a small-sized camera module 11-11-1 set at the distal end and a soft signal line 11-11-2 connected to the rear end of the camera module 11-11-1. Therefore, even if the endoscope channel 11-1 has a bend or slope, the camera module 11-11-1 can be coaxially set at the distal end of the endoscope channel 11-1, and the signal line 11-11-2 can be arranged along the direction of the endoscope channel 11-1. Therefore, when the distal center line of the endoscope channel 11-1 and the center line of the working sheath 11 are set to a certain angle as needed, the observation angle of the camera module 11-11-1 also changes with the angle of the distal end of the endoscope channel 11-1, thereby changing the observation angle of the endoscope working part 11-11.

[0059] The β angle range is 0° to 70°. According to clinical needs, the β angle range is usually 0° to 70°.

[0060] refer to Figure 5 to Figure 5-2 In this embodiment, a reinforcing connection mechanism 1-2 is further provided between the front-end working portion 1 and the back-end control system 2. The reinforcing connection mechanism 1-2 reinforces the connection between the working portion connection end 21 and the endoscope connection mechanism 12-1. In clinical use, in instruments such as disposable cystoscopes and disposable ureteroscopes, the front-end working portion 1 provided with the endoscope working portion 11-11 is typically disposable and, therefore, requires frequent replacement. To facilitate replacement of the front-end working portion 1, the connection between the working portion connection end 21 and the endoscope connection mechanism 12-1 is typically a plug-and-unplug connection method such as USB or Type-C. Since the contact of the above connection method is typically planar contact and lacks a strong connection force, the connection between the working portion connection end 21 and the endoscope connection mechanism 12-1 may accidentally loosen during clinical use due to various circumstances, such as back-and-forth movement during operation and accidental contact by external force. The reinforced connection mechanism 1 - 2 increases the connection firmness between the working part connection end 21 and the endoscope connection mechanism 12 - 1 through an additional fixing effect, thereby effectively avoiding the accidental loosening of the interface during clinical procedures.

[0061] refer to Figure 5 and Figure 6 The reinforcing connecting mechanism 1-2 is a detachable connecting mechanism. In order to facilitate the replacement of the front end of the disposable electronic endoscope during use, the reinforcing connecting mechanism 1-2 is usually a detachable connecting mechanism.

[0062] refer to Figure 5-1 In this embodiment, the reinforced connection mechanism 1-2 is a concave-convex card-fit reinforced connection mechanism 1-2-1; the concave-convex card-fit reinforced connection mechanism 1-2-1 includes a positioning groove 1-2-11 and a positioning block 1-2-12, and the positioning block 1-2-12 is embedded in the positioning groove 1-2-11 to form a reinforced connection. The positioning block 1-2-12 is set on the endoscope connection mechanism 12-1, and the positioning groove 1-2-11 is set on the working part connection end 21. When connected, the positioning block 1-2-12 is embedded in the positioning groove 1-2-11 to form the reinforced connection mechanism 1-2, which can firmly connect the working part connection end 21 and the endoscope connection mechanism 12-1. In actual applications, the positioning block 1-2-12 can also be set on the working part connection end 21, and the positioning groove 1-2-11 can be set on the endoscope connection mechanism 12-1, without departing from the scope of protection of this application.

[0063] In actual applications, the reinforcing connection mechanism 1-2 can also be a threaded reinforcing connection mechanism, and / or an interference fit connection mechanism, or different specific reinforcing connection structures designed by technicians in this field according to needs, or a combination of multiple connection structures. The applicant does not give examples one by one here, but they do not deviate from the scope of protection of this application.

[0064] In this embodiment, a sealing mechanism 12-21 is further provided at the instrument inlet and outlet mechanism 12-2. When the endoscope system with the reinforced connection mechanism of the present invention is used in clinical operations such as urology where fluids enter and exit a body cavity, a sealing mechanism 12-21 can be provided at the instrument inlet and outlet mechanism 12-2. When an instrument enters and exits the instrument channel 11-2 through the instrument inlet and outlet mechanism 12-2, the sealing mechanism 12-21 acts as a seal to prevent fluids from overflowing from the outlet of the instrument inlet and outlet mechanism 12-2 during operation.

[0065] The sealing mechanism 12-21 is detachably mounted on the instrument access mechanism 12-2. The sealing mechanism 12-21 can be formed as a separate component and detachably connected to the proximal end of the instrument access mechanism 12-2 via a Luer connector or other means. This detachable connection allows the sealing mechanism 12-21 to be replaced during use.

[0066] refer to Figure 5-2 The sealing mechanism 12-21 is a one-way sealing valve 12-21-1. The one-way sealing valve 12-21-1 is generally a one-way or multi-petal silicone valve. With this one-way valve design, when the device is removed, the internal fluid or gas can reset the one-way sealing valve 12-21-1, still providing a good sealing effect and acting as an occluder.

[0067] refer to Figure 2 to Figure 3-1 In this embodiment, the fluid enters and flows out of the body cavity through the same fluid channel 11-3. A three-way control valve 12-31 is provided at the fluid inlet and outlet mechanism 12-3. The three-way control valve 12-31 controls the entry, discharge, and closure of the fluid in the body cavity. With this design of the same fluid channel, only one fluid inlet and outlet mechanism 12-3 needs to be provided on the handle 12, and then the state of the fluid, such as water inlet, water outlet, and all closed states, is controlled by the three-way control valve 12-31. This design structure is very simple and does not affect hand movements during clinical application.

[0068] refer to Figure 6 In this embodiment, the three-way control valve 12-31 is detachably provided at the fluid inlet and outlet mechanism 12-3. The three-way control valve 12-31 is made into an independent component and is detachably connected to the proximal end of the fluid inlet and outlet mechanism 12-3 by means of a Luer connector or the like.

[0069] refer to Figure 7 and Figure 7-1 The endoscope connection mechanism 12-1, the instrument entry and exit mechanism 12-2, and the fluid entry and exit mechanism 12-3 are arranged in the same plane along the axial direction of the working sheath 11. The endoscope connection mechanism 12-1 and the fluid entry and exit mechanism 12-3 are usually arranged on the upper and lower sides of the instrument entry and exit mechanism 12-2, and the three are arranged in the same plane along the axial direction of the working sheath 11. This arrangement in the same longitudinal plane effectively solves the problem of mutual influence between hand movements and instrument entry and exit operations in clinical applications caused by the horizontal arrangement of the water inlet pipe, water outlet pipe, and instrument entry and exit mechanism in the existing disposable endoscope system and the vertical arrangement of the endoscope connection mechanism 12-1.

[0070] The handle 12 is further provided with a gripping portion 12-4, which facilitates the hand to more stably operate the endoscope system of the present invention during use.

[0071] refer to Figure 7 and Figure 7-1 The grip portion 12-4 includes a trigger position 12-41 and a thumb seal 12-42. The trigger position 12-41 is generally a smooth annular structure provided at the distal end of the endoscope connecting mechanism 12-1 near the endoscope connecting mechanism 12-1, into which a finger can be inserted. The thumb seal 12-42 is provided between the endoscope connecting mechanism 12-1 and the instrument entry and exit mechanism 12-2. The thumb seal 12-42 is a smooth inner arc structure that can be placed against the thumb near the thumb to form a fixing effect. Through the cooperation between the trigger position 12-41 and the thumb seal 12-42, the device can be held very comfortably during clinical application.

[0072] refer to Figure 5-1 The working portion connection end 21 and the endoscope connection mechanism 12-1 are detachably connected via Type-C. The Type-C connection method has gradually become an internationally accepted connection method, offering multiple advantages such as non-directionality and easy plugging and unplugging. Of course, in actual applications, the connection method between the working portion connection end 21 and the endoscope connection mechanism 12-1 can also be USB, gold finger, or other connection methods. The applicant does not provide examples here, but they all fall within the scope of protection of this application.

[0073] During clinical use, an appropriate endoscope system of the present invention with the β angle is selected as needed, the working portion connection end 21 is held and aligned with the endoscope connection mechanism 12-1 for connection, and then the working portion connection end 21 is continuously pushed forward. The positioning block 1-2-12 is embedded in the positioning groove 1-2-11 and locked to form the reinforced connection mechanism 1-2, further firmly connecting the working portion connection end 21 and the endoscope connection mechanism 12-1. The endoscope working portion 11-11 is connected to the control system 22 via the power supply circuit system 23 for real-time image display.

[0074] In this embodiment, since the distal centerline of the endoscope channel 11-1 forms an angle β with the centerline of the working sheath 11; the distal end of the endoscope working portion 11-11 is coaxially arranged at the distal end of the endoscope channel 11-1, the observation angle of the camera module 11-11-1 of the endoscope working portion 11-11 forms an angle β with the centerline of the working sheath 11. The endoscope system of the present invention can easily adjust the actual observation angle of the camera module 11-11-1 to 0° by adjusting the angle β at the distal end of the endoscope channel 11-1, thereby meeting various clinical observation angle requirements without having to adjust the angle of the camera module 11-11-1 itself, making clinical angle adjustment very convenient.

[0075] It should be noted that the structures disclosed and described herein may be replaced by other structures with equivalent effects, and that the embodiments described herein are not the only structures for implementing the present invention. Although preferred embodiments of the present invention have been described and illustrated herein, those skilled in the art will readily appreciate that these embodiments are merely illustrative and that those skilled in the art may make numerous changes, improvements, and substitutions without departing from the present invention. Therefore, the scope of protection of the present invention shall be defined in accordance with the spirit and scope of the appended claims.

Claims

1. An endoscope system, characterized in that: The endoscope system (100) comprises a front-end working part (1) and a back-end control system (2); A. The front end working portion (1) comprises a working sheath (11) and a handle (12), wherein the working sheath (11) is arranged at the distal end of the handle (12); B. The working sheath (11) is provided with an endoscope channel (11-1), an instrument channel (11-2) and a fluid channel (11-3); the proximal end of the handle (12) is provided with an endoscope connection mechanism (12-1), an instrument entry and exit mechanism (12-2), and a fluid entry and exit mechanism (12-3); C. An endoscope working portion (11-11) is provided in the endoscope channel (11-1), and the distal centerline of the endoscope channel (11-1) forms an angle β with the centerline of the working sheath (11); the distal end of the endoscope working portion (11-11) is coaxially provided at the distal end of the endoscope channel (11-1), and the observation angle of the camera module (11-11-1) of the endoscope working portion (11-11) forms an angle β with the centerline of the working sheath (11); C. The back-end control system (2) includes a working part connection end (21), a control system (22) and a power circuit system (23); D. During operation, the working part connection end (21) is connected to the endoscope connection mechanism (12-1), the endoscope working part (11-11) is connected to the control system (22) via the power supply circuit system (23) for real-time image display, and the viewing angle of the camera module (11-11-1) forms an angle β with the center line of the working sheath (11).

2. The endoscope system according to claim 1, wherein: The β angle range is 0° to 70°.

3. The endoscope system according to claim 1, wherein: A reinforcing connection mechanism (1-2) is provided between the front-end working part (1) and the rear-end control system (2), and the reinforcing connection mechanism (1-2) strengthens the connection between the working part connection end (21) and the endoscope connection mechanism (12-1).

4. The endoscope system according to claim 3, wherein: The reinforced connection mechanism (1-2) is a detachable connection mechanism.

5. The endoscope system according to claim 4, characterized in that: The reinforcement connection mechanism (1-2) is a thread reinforcement connection mechanism, and / or a concave-convex snap-fit ​​reinforcement connection mechanism, and / or an interference fit connection mechanism.

6. The endoscope system according to claim 5, characterized in that: The reinforcing connection mechanism (1-2) is a concave-convex card-fitting reinforcing connection mechanism (1-2-1); the concave-convex card-fitting reinforcing connection mechanism (1-2-1) comprises a positioning groove (1-2-11) and a positioning block (1-2-12); the positioning block (1-2-12) is embedded in the positioning groove (1-2-11) to form a reinforcing connection.

7. The endoscope system according to claim 1, characterized in that: A sealing mechanism (12-21) is provided at the instrument entry and exit mechanism (12-2).

8. The endoscope system according to claim 7, characterized in that: The sealing mechanism (12-21) is detachably arranged at the instrument entry and exit mechanism (12-2).

9. The endoscope system according to claim 8, characterized in that: The sealing mechanism (12-21) is a one-way sealing valve (12-21-1).

10. The endoscope system according to claim 1, characterized in that: The fluid enters and flows out of the body cavity through the same fluid channel (11-3), and a three-way control valve (12-31) is provided at the fluid inlet and outlet mechanism (12-3). The three-way control valve (12-31) controls the entry and discharge of the fluid and the sealing of the fluid in the body cavity.

11. The endoscope system according to claim 10, characterized in that: The three-way control valve (12-31) is detachably arranged at the fluid inlet and outlet mechanism (12-3).

12. The endoscope system according to claim 1, characterized in that: The handle (12) is also provided with a gripping portion (12-4).

13. The endoscope system according to claim 12, characterized in that: The gripping portion (12-4) includes a trigger position (12-41) and a thumbs-up baffle (12-42).

14. The endoscope system according to claim 1, characterized in that: The endoscope connection mechanism (12-1), the instrument entry and exit mechanism (12-2), and the fluid entry and exit mechanism (12-3) are arranged in the same plane along the axial direction of the working sheath (11).

15. The endoscope system according to claim 1, characterized in that: The working part connection end (21) and the endoscope connection mechanism (12-1) are detachably connected in a Type-C format.

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