Endoscope system with sealing mechanism

Abstract

The endoscope system with the sealing mechanism 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 endoscope working part is arranged in the endoscope channel. An endoscope connecting mechanism, an instrument in-out mechanism and a fluid in-out mechanism are arranged at the near end of the handle, and a sealing mechanism is arranged on the instrument in-out mechanism. During working, instruments enter the instrument channel through the instrument in-out mechanism, the sealing mechanism plays a sealing role, and fluid is prevented from overflowing from an outlet of the instrument in-out mechanism during working. After the instrument is removed, the sealing mechanism is reset under the action of internal fluid or gas, the good plugging effect is achieved, meanwhile, the function of a plugging device is achieved, and the clinical operation process is safer and more sanitary.

Description

Technical Field

[0001] This utility model relates to an endoscope system, and more particularly to an endoscope system with an instrument channel containing a sealing mechanism. Background Technology

[0002] With the development of endoscopic technology, minimally invasive surgery has gradually become widespread in various departments, such as urology, hepatobiliary surgery, and gynecology, where endoscopic minimally invasive procedures are now being performed in diagnosis and treatment. Especially with the development of electronic endoscopes, which can achieve miniaturization and flexible / rigid endoscope combinations, electronic endoscopes, particularly disposable ones, are increasingly being used in clinical applications, especially in urology and gynecology. Disposable cystoscopes, ureteroscopes, and hysteroscopes, among other electronic endoscopes, are becoming increasingly common in clinical practice.

[0003] The core difference between electronic endoscopes and traditional optical endoscopes is that electronic endoscopes place the camera module at the front of the observation position, while hardware such as the decoding board is placed at the rear via signal cables. The front-end working unit and the back-end control system are detachably connected through simple and detachable connection methods such as USB and Type-C.

[0004] Meanwhile, for the convenience of clinical operation, the working part of the endoscope system is usually equipped with an instrument operation channel. However, when operating in departments such as urology where fluid enters and exits the body cavity, the instrument channel is usually sealed with a occluder when there are no instruments. However, during the instrument entry and exit process, since it is impossible to seal the channel with a occluder, fluid will flow out during the operation, which not only interferes with the operation but also pollutes the environment.

[0005] The purpose of this application is to solve the problem of fluid leakage during the insertion and removal of instruments and to improve the existing endoscope system. Summary of the Invention

[0006] The endoscope system with a sealing mechanism of this utility model uses a detachable one-way sealing mechanism to prevent fluid leakage during the insertion and removal of the instrument. After the instrument is removed, it resets under the action of internal fluid or gas, thus achieving a good sealing effect. The design of the one-way sealing mechanism realizes the functions of the instrument sealing ring and the occluder.

[0007] The endoscope system with a sealing mechanism of the present invention is characterized in that: the endoscope system 100 with a sealing mechanism includes a front working part 1 and a rear control system 2.

[0008] A. The front working part 1 includes 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 endoscope channel 11-1 is provided with an endoscope working part 11-11. The proximal end of the handle 12 is provided with an endoscope connection mechanism 12-1, an instrument inlet / outlet mechanism 12-2, and a fluid inlet / outlet mechanism 12-3. A sealing mechanism 12-21 is provided at the instrument inlet / outlet mechanism 12-2.

[0010] C. The back-end control system 2 includes a working part connection terminal 21, a control system 22, and a power circuit system 23;

[0011] 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 instrument enters the instrument channel 11-2 through the instrument entry and exit mechanism 12-2, and the sealing mechanism 12-21 plays a sealing role to prevent fluid from overflowing from the outlet of the instrument entry and exit mechanism 12-2 during operation.

[0012] When applied in clinical procedures such as those in urology where fluid enters and exits body cavities, the instrument channel is typically sealed with an occluder when no instruments are present. However, during instrument insertion and removal, the occluder cannot be used to seal the channel, resulting in fluid leakage that interferes with the procedure and pollutes the environment. The sealing mechanism 12-21, when the instrument enters or exits the instrument channel 11-2 via the instrument entry / exit mechanism 12-2, acts as a seal, preventing fluid from overflowing from the outlet of the instrument entry / exit mechanism 12-2 during operation. After the instrument is removed, it resets under the influence of internal fluid or gas, providing a good seal and functioning as an occluder, making clinical procedures safer and more hygienic.

[0013] The sealing mechanism 12-21 is detachably disposed at the instrument inlet / outlet mechanism 12-2. The sealing mechanism 12-21 can be made as an independent component and detachably connected to the proximal end of the instrument inlet / outlet mechanism 12-2 via a Luer connector or similar means. This detachable connection allows the sealing mechanism 12-21 to be replaced during use.

[0014] The sealing mechanism 12-21 is a one-way sealing valve 12-21-1. The one-way sealing valve 12-21-1 typically adopts a single-piece or multi-disc silicone valve design. With this one-way valve design, when the instrument is removed, the internal fluid or gas can reset the one-way sealing valve 12-21-1, still providing a good sealing effect.

[0015] A reinforcing connection mechanism 1-2 is provided between the front-end working part 1 and the rear-end control system 2. 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, such as in disposable cystoscopes and disposable ureteroscopes, the front-end working part 1, which is equipped with the endoscope working part 11-11, is usually for single use and therefore needs to be replaced frequently. To facilitate the 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 plug-and-play connection method such as USB or Type-C. Since the contact of the above connection method is usually a planar contact without strong connection force, the connection between the working part connection end 21 and the endoscope connection mechanism 12-1 may accidentally loosen during clinical use due to various situations such as back-and-forth movement during operation or accidental contact by external force. The reinforced connection mechanism 1-2 increases the connection strength between the working part connection end 21 and the endoscope connection mechanism 12-1 through additional fixing effect, thereby effectively avoiding the occurrence of accidental loosening of the interface during clinical practice.

[0016] The reinforcing connection mechanism 1-2 is a detachable connection mechanism. To facilitate the replacement of the tip during use of the disposable electronic endoscope, the reinforcing connection mechanism 1-2 is typically a detachable connection mechanism.

[0017] The reinforcing connection mechanisms 1-2 are threaded reinforcing connection mechanisms, and / or concave-convex locking reinforcing connection mechanisms, and / or interference fit connection mechanisms. The applicant has only listed the above three reinforcing connection methods. In practical applications, those skilled in the art can design different specific reinforcing connection structures as needed, or combine multiple connection structures. The applicant will not provide examples of each, but none of them depart from the protection scope of this application.

[0018] The reinforcing connection mechanism 1-2 is a concave-convex locking reinforcing connection mechanism 1-2-1; the concave-convex locking reinforcing connection mechanism 1-2-1 includes a positioning groove 1-2-11 and a positioning block 1-2-12, the positioning block 1-2-12 being embedded in the positioning groove 1-2-11 to form a reinforcing connection. In specific applications, 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; alternatively, 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 being embedded in the positioning groove 1-2-11 constitutes the reinforcing connection mechanism 1-2, firmly connecting the working part connection end 21 and the endoscope connection mechanism 12-1 together.

[0019] The fluid enters and exits the body cavity through the same fluid channel 11-3. A three-way control valve 12-31 is provided at the fluid inlet / outlet mechanism 12-3, which controls the fluid's entry, exit, and containment within the body cavity. This single fluid channel design requires only one fluid inlet / outlet mechanism 12-3 on the handle 12, and the three-way control valve 12-31 controls the fluid's state, such as inlet, outlet, or complete closure. This design is very simple and does not interfere with hand movements during clinical applications.

[0020] The three-way control valve 12-31 is detachably mounted at the fluid inlet / 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 / outlet mechanism 12-3 via a Luer connector or other means.

[0021] The handle 12 is also provided with a grip portion 12-4. The grip portion 12-4 facilitates more stable operation of the endoscope system with sealing mechanism of this utility model during use.

[0022] The grip portion 12-4 includes a trigger position 12-41 and a thumb-and-finger guard 12-42. The trigger position 12-41 is typically a smooth, annular structure located at the distal end of the endoscope connection mechanism 12-1, near the endoscope connection mechanism 12-1, allowing for finger insertion. The thumb-and-finger guard 12-42 is positioned between the endoscope connection mechanism 12-1 and the instrument insertion / exit mechanism 12-2. The thumb-and-finger guard 12-42 has a smooth, inwardly arc-shaped structure, which can provide a stabilizing effect by pressing against the thumb near the web of the hand. Through the cooperation between the trigger position 12-41 and the thumb-and-finger guard 12-42, a very comfortable grip can be achieved during clinical application.

[0023] The endoscope connection mechanism 12-1, the instrument inlet / outlet mechanism 12-2, and the fluid inlet / outlet 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 inlet / outlet mechanism 12-3 are usually located on the upper and lower sides of the instrument inlet / outlet mechanism 12-2. 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 in existing disposable endoscope systems where the inlet / outlet pipe and instrument inlet / outlet mechanism are horizontally arranged, while the endoscope connection mechanism 12-1 is vertically arranged, which leads to mutual interference between hand movements and instrument insertion / exit operations in clinical applications.

[0024] The distal centerline of the endoscope channel 11-1 forms an angle β with the centerline of the working sheath 11. Because the endoscope working section 11-11 employs an electronic endoscope design, its structure typically includes a small-sized camera module at the distal end and a flexible signal cable connected to the rear end of the camera module. Therefore, even if the endoscope channel 11-1 has bends or angles, the endoscope working section 11-11 can still be arranged along the direction of the endoscope channel 11-1. Thus, the distal centerline of the endoscope channel 11-1 and the centerline of the working sheath 11 can be set at a certain angle as needed to change the observation angle of the endoscope working section 11-11.

[0025] The β angle range is 0° to 70°. Depending on clinical needs, the β angle range is typically 0° to 70°.

[0026] The working part connecting end 21 and the endoscope connecting mechanism 12-1 are detachably connected via Type-C. Type-C connection has gradually become an internationally accepted method, offering advantages such as non-directionality and ease of insertion and removal. Of course, in practical applications, the connection between the working part connecting end 21 and the endoscope connecting mechanism 12-1 can also be via USB, gold fingers, or other connection methods. The applicant will not list all of these here, but they all fall within the scope of this application.

[0027] In clinical use, the working part connecting end 21 is held and aligned with the endoscope connecting mechanism 12-1 for connection. Then, the working part connecting end 21 is pushed further in, and the positioning block 1-2-12 is locked within the positioning groove 1-2-11, forming the reinforcing connecting mechanism 1-2, further and firmly connecting the working part connecting end 21 and the endoscope connecting mechanism 12-1 together. 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 instrument enters the instrument channel 11-2 through the instrument inlet / outlet mechanism 12-2, and the sealing mechanism 12-21 acts as a seal to prevent fluid from overflowing from the outlet of the instrument inlet / outlet mechanism 12-2 during operation.

[0028] This utility model discloses an endoscope system with a sealing mechanism, comprising a front working part 1 and a rear control system 2, wherein a reinforcing connection mechanism 1-2 is provided between the front working part 1 and the rear control system 2. The front working part 1 includes a working sheath 11 and a handle 12. The working sheath 11 contains an endoscope channel 11-1, an instrument channel 11-2, and a fluid channel 11-3. The endoscope working part 11-11 is located within the endoscope channel 11-1. The proximal end of the handle 12 is provided with an endoscope connection mechanism 12-1, an instrument in / out mechanism 12-2, and a fluid in / out mechanism 12-3. The sealing mechanism 12-21 is provided on the instrument in / out mechanism 12-2. The rear control system 2 includes a working part connection end 21, a control system 22, and a power circuit system 23. During operation, the endoscope working section 11-11 is connected to the control system 22 via the power circuit system 23 for real-time image display. Instruments enter the instrument channel 11-2 via the instrument entry / exit mechanism 12-2, and the sealing mechanism 12-21 acts as a seal to prevent fluid from overflowing from the outlet of the instrument entry / exit mechanism 12-2 during operation. After the instrument is removed, it resets under the action of internal fluid or gas, providing a good sealing effect and functioning as a occluder, making clinical procedures safer and more hygienic. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural diagram of the endoscope system of this utility model with a sealing mechanism when viewed at 0°.

[0030] Figure 1-1 yes Figure 1 AA sectional view.

[0031] Figure 1-2 yes Figure 1 BB cross-sectional view.

[0032] Figure 2 yes Figure 1 A schematic diagram showing the state of the three-way control valve and sealing mechanism during disassembly.

[0033] Figure 3 yes Figure 1 A schematic diagram of the structure during the disassembly of the back-end control system.

[0034] Figure 4 yes Figure 3 A schematic diagram of the structure of the three-way control valve and sealing mechanism during disassembly.

[0035] Figure 5 yes Figure 4 A sectional view.

[0036] Figure 5-1 yes Figure 5 Enlarged view of point C.

[0037] Figure 5-2 yes Figure 5 Enlarged view of point D.

[0038] Figure 6 This is a schematic diagram of the structure when viewed from the β angle.

[0039] Figure 6-1 yes Figure 6 Enlarged view of point E.

[0040] Figure 7 This is a schematic diagram of the structure when held upright.

[0041] Figure 7-1 This is a schematic diagram of the structure when held in the reverse direction.

[0042] In the above figure:

[0043] 100 is the endoscope system with a sealing mechanism of this utility model.

[0044] 1 is the front-end working part, 2 is the back-end control system, and 1-2 is the reinforcing connection mechanism.

[0045] 11 is the working sheath, 12 is the handle; 21 is the working part connection end, 22 is the control system, and 23 is the power circuit system.

[0046] 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 section.

[0047] 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 and forefinger baffle.

[0048] 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.

[0049] β is the angle between the distal centerline of the endoscope channel and the centerline of the working sheath. Detailed Implementation

[0050] Example 1: Endoscopic system with sealing mechanism of this utility model

[0051] refer to Figures 1 to 5-2 The endoscope system with sealing mechanism in this embodiment includes a front working part 1 and a rear control system 2.

[0052] The front working part 1 includes a working sheath 11 and a handle 12, with the working sheath 11 disposed at the distal end of the handle 12.

[0053] refer to Figure 4 and Figure 5 The working sheath 11 is provided with an endoscope channel 11-1, an instrument channel 11-2, and a fluid channel 11-3. In this embodiment, the distal end of the working sheath 11 is also provided with a positioning end 11-4. 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 in / out mechanism 12-2, and a fluid in / out mechanism 12-3.

[0054] The back-end control system 2 includes a working part connection terminal 21, a control system 22, and a power circuit system 23.

[0055] refer to Figure 1 and Figure 2 The sealing mechanism 12-21 is detachably disposed at the instrument inlet / outlet mechanism 12-2. The sealing mechanism 12-21 can be made as an independent component and detachably connected to the proximal end of the instrument inlet / outlet mechanism 12-2 via a Luer connector or similar means. This detachable connection allows the sealing mechanism 12-21 to be replaced during use.

[0056] refer to Figure 1-2 In this embodiment, the sealing mechanism 12-21 is a one-way sealing valve 12-21-1. The one-way sealing valve 12-21-1 typically adopts a single-piece or multi-disc silicone valve design. With this one-way valve design, when the instrument is removed, the internal fluid or gas can reset the one-way sealing valve 12-21-1, still providing a good sealing effect.

[0057] refer to Figure 1 and Figure 2A reinforcing connection mechanism 1-2 is also provided between the front-end working part 1 and the rear-end control system 2. 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, such as in disposable cystoscopes and disposable ureteroscopes, the front-end working part 1, which is equipped with the endoscope working part 11-11, is usually for single use and therefore needs to be replaced frequently. To facilitate the 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 or Type-C connection method that is easy to plug and unplug. Since the contact of the above connection method is usually a planar contact without strong connection force, the connection between the working part connection end 21 and the endoscope connection mechanism 12-1 may be accidentally loosened during clinical use due to various situations such as back-and-forth movement during operation or accidental contact by external force. The reinforced connection mechanism 1-2 increases the connection strength between the working part connection end 21 and the endoscope connection mechanism 12-1 through additional fixing effect, thereby effectively avoiding the occurrence of accidental loosening of the interface during clinical practice.

[0058] The reinforcing connection mechanism 1-2 is a detachable connection mechanism. To facilitate the replacement of the tip during use of the disposable electronic endoscope, the reinforcing connection mechanism 1-2 is typically a detachable connection mechanism.

[0059] refer to Figure 1-1 In this embodiment, the reinforcing connection mechanism 1-2 is a concave-convex locking reinforcing connection mechanism 1-2-1; the concave-convex locking reinforcing connection mechanism 1-2-1 includes a positioning groove 1-2-11 and a positioning block 1-2-12, the positioning block 1-2-12 being embedded in the positioning groove 1-2-11 to form a reinforcing connection. The positioning block 1-2-12 is disposed on the endoscope connection mechanism 12-1, and the positioning groove 1-2-11 is disposed on the working part connection end 21. During connection, the positioning block 1-2-12 is embedded in the positioning groove 1-2-11 to form the reinforcing connection mechanism 1-2, thus firmly connecting the working part connection end 21 and the endoscope connection mechanism 12-1 together. In practical applications, the positioning block 1-2-12 can also be disposed on the working part connection end 21, and the positioning groove 1-2-11 can be disposed on the endoscope connection mechanism 12-1, without departing from the protection scope of this application.

[0060] In practical 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 those skilled in the art as needed, or a combination of multiple connection structures. The applicant will not give examples here, but none of them depart from the protection scope of this application.

[0061] In this embodiment, the fluid enters and exits the body cavity through the same fluid channel 11-3. A three-way control valve 12-31 is provided at the fluid inlet / outlet mechanism 12-3, which controls the fluid's entry, exit, and containment within the body cavity. This single fluid channel design requires only one fluid inlet / outlet mechanism 12-3 on the handle 12, and the three-way control valve 12-31 controls the fluid's state, such as inlet, outlet, or complete closure. This design is very simple and does not affect hand movements during clinical applications.

[0062] The three-way control valve 12-31 is detachably mounted at the fluid inlet / 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 / outlet mechanism 12-3 via a Luer connector or other means.

[0063] refer to Figure 7 and Figure 7-1 The endoscope connection mechanism 12-1, the instrument inlet / outlet mechanism 12-2, and the fluid inlet / outlet 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 inlet / outlet mechanism 12-3 are typically located on the upper and lower sides of the instrument inlet / outlet mechanism 12-2. This arrangement in the same longitudinal plane effectively solves the problem in existing disposable endoscope systems where the inlet / outlet pipe and instrument inlet / outlet mechanism are horizontally positioned, while the endoscope connection mechanism 12-1 is vertically positioned, leading to mutual interference between hand movements and instrument insertion / exit operations during clinical application.

[0064] In this embodiment, the handle 12 is further provided with a grip portion 12-4. The grip portion 12-4 facilitates more stable operation of the endoscope system with sealing mechanism of this utility model during use.

[0065] refer to Figure 7 and Figure 7-1 The gripping part 12-4 includes a trigger position 12-41 and a thumb-and-finger guard 12-42. The trigger position 12-41 is typically a smooth, annular structure located at the distal end of the endoscope connection mechanism 12-1, near the endoscope connection mechanism 12-1, allowing for finger insertion. The thumb-and-finger guard 12-42 is positioned between the endoscope connection mechanism 12-1 and the instrument insertion / exit mechanism 12-2. The thumb-and-finger guard 12-42 has a smooth, inwardly arc-shaped structure, which can provide a stabilizing effect by pressing against the thumb near the web of the hand. Through the cooperation between the trigger position 12-41 and the thumb-and-finger guard 12-42, a very comfortable grip can be achieved during clinical application.

[0066] The working part connecting end 21 and the endoscope connecting mechanism 12-1 are detachably connected via Type-C. Type-C connection has gradually become an internationally accepted method, offering advantages such as non-directionality and ease of insertion and removal. Of course, in practical applications, the connection between the working part connecting end 21 and the endoscope connecting mechanism 12-1 can also be via USB, gold fingers, or other connection methods. The applicant will not list all of these here, but they all fall within the scope of this application.

[0067] In clinical use, the working part connecting end 21 is held and aligned with the endoscope connecting mechanism 12-1 for connection. Then, the working part connecting end 21 is pushed further in, and the positioning block 1-2-12 is locked within the positioning groove 1-2-11, forming the reinforcing connecting mechanism 1-2, further and firmly connecting the working part connecting end 21 and the endoscope connecting mechanism 12-1 together. 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 instrument enters the instrument channel 11-2 through the instrument inlet / outlet mechanism 12-2, and the sealing mechanism 12-21 acts as a seal to prevent fluid from overflowing from the outlet of the instrument inlet / outlet mechanism 12-2 during operation.

[0068] In this embodiment, due to the design of the sealing mechanism 12-21, the instrument enters the instrument channel 11-2 through the instrument entry / exit mechanism 12-2. The sealing mechanism 12-21 acts as a seal to prevent fluid from overflowing from the outlet of the instrument entry / exit mechanism 12-2 during operation. After the instrument is removed, it resets under the action of internal fluid or gas, achieving a good sealing effect and functioning as a occluder, making the clinical operation process safer and more hygienic.

[0069] Example 2: An endoscope system with a sealing mechanism of this invention with an adjustable field of view.

[0070] refer to Figure 6 and Figure 6-1 The difference between this embodiment and embodiment 1 is that, in this embodiment, the observation angle of the endoscope working part 11-11 is adjustable.

[0071] In this embodiment, the distal centerline of the endoscope channel 11-1 forms an angle β with the centerline of the working sheath 11. Because the endoscope working section 11-11 adopts an electronic endoscope technology, its structure includes a small-sized camera module 11-11-1 located at the distal end and a flexible 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 bends or angles, the camera module 11-11-1 can still be coaxially positioned 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 centerline of the endoscope channel 11-1 and the centerline 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.

[0072] Depending on clinical needs, the β angle range is typically 0° to 70°, with preferred clinical angles being 20°, 30°, and 70°.

[0073] It should be noted that the structures disclosed and described herein can be replaced by other structures with the same effect, and the embodiments described herein are not the only structures for implementing this utility model. Although preferred embodiments of this utility model have been described and illustrated herein, those skilled in the art will understand that these embodiments are merely illustrative, and those skilled in the art can make numerous variations, improvements, and substitutions without departing from this utility model. Therefore, the scope of protection of this utility model should be defined in accordance with the spirit and scope of the appended claims.

Claims

1. An endoscope system including a sealing mechanism, characterized in that: The endoscope system (100) with sealing mechanism includes a front working part (1) and a rear control system (2). A. The front working part (1) includes a working sheath (11) and a handle (12), wherein the working sheath (11) is disposed 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 endoscope channel (11-1) is provided with an endoscope working part (11-11). The proximal end of the handle (12) is provided with an endoscope connection mechanism (12-1), an instrument inlet / outlet mechanism (12-2) and a fluid inlet / outlet mechanism (12-3). A sealing mechanism (12-21) is provided at the instrument inlet / outlet mechanism (12-2). C. The back-end control system (2) includes a working part connection end (21), a control system (22), and a power supply circuit system (23). 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 instrument enters the instrument channel (11-2) through the instrument entry and exit mechanism (12-2), and the sealing mechanism (12-21) plays a sealing role to prevent fluid from overflowing from the outlet of the instrument entry and exit mechanism (12-2) during operation.

2. The endoscope system with a sealing mechanism according to claim 1, characterized in that: The sealing mechanism (12-21) is detachably disposed at the instrument entry / exit mechanism (12-2).

3. The endoscope system with a sealing mechanism according to claim 2, characterized in that: The sealing mechanism (12-21) is a one-way sealing valve (12-21-1).

4. The endoscope system with a sealing mechanism according to claim 1, characterized in that: 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).

5. The endoscope system with a sealing mechanism according to claim 4, characterized in that: The reinforcing connection mechanism (1-2) is a detachable connection mechanism.

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

7. The endoscope system with a sealing mechanism according to claim 6, characterized in that: The reinforcing connection mechanism (1-2) is a concave-convex locking reinforcing connection mechanism (1-2-1); the concave-convex locking 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.

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

9. The endoscope system with a sealing mechanism according to claim 8, characterized in that: The three-way control valve (12-31) is detachably mounted on the fluid inlet / outlet mechanism (12-3).

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

11. The endoscope system with a sealing mechanism according to claim 10, characterized in that: The grip (12-4) includes a trigger position (12-41) and a thumb guard (12-42).

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

13. The endoscope system with a sealing mechanism according to claim 1, characterized in that: The distal centerline of the endoscope channel (11-1) forms an angle β with the centerline of the working sheath (11).

14. The endoscope system with a sealing mechanism according to claim 13, characterized in that: The β angle range is 0° to 70°.

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

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