Endoscope adapter, endoscope and installation method

Abstract

The present invention relates to an endoscope adapter, an endoscope and an installation method, comprising a tube body, a transition cavity provided in the tube body, a proximal end of the tube body used to realize the connection between the endoscope adapter and the channel tube in the endoscope handle, a guide bevel provided at the distal end of the tube body, the guide bevel corresponding to the tube body used to extend into the working channel of the endoscope insertion part, and the distal end of the transition cavity and the proximal end of the working channel are connected by the cooperation of the guide bevel and the inner wall of the working channel to realize the docking connection between the distal end of the transition cavity and the proximal end of the working channel, and limit the relative circumferential rotation between the tube body and the working channel. The present invention can quickly and accurately help complete the docking connection between the working channel and the transition cavity, improve the docking efficiency, and at the same time can remind the operator of the docking process through resistance feedback, enhance the insertion docking fluency and installation feel, and after docking, there will be no relative circumferential rotation between the tube body and the insertion part, improving the connection stability and use safety.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to an endoscope adapter, an endoscope and an installation method. Background Art

[0002] Endoscope is one of the commonly used medical devices in modern minimally invasive surgery, which can be used to observe the internal body cavity of the human body. The existing endoscope generally includes a handle and an insertion part. The insertion part is provided with an instrument tube and a camera module pipeline. In actual operation, the traction wheel can be driven to rotate by turning the lever on the handle to adjust the posture of the curved section of the insertion part, thereby adjusting the direction of the distal module to realize fixed-point observation and other functions.

[0003] In the process of implementing the present invention, the applicant found that when assembling the handle and the insertion part, the traction rope and the camera module core on the traction rope insertion part need to be guided in an orderly manner in the handle, and at the same time, the instrument pipeline on the insertion part and the Y-shaped channel tube in the handle must be smoothly connected. For this reason, existing endoscope technologies, such as the system and equipment for an endoscope without a tube working channel disclosed in U.S. Patent Publication No. US20200359879A1, use an adapter in the handle to achieve an orderly connection between the insertion part and the handle, but the connection stability of the adapter to the insertion part is poor, and the structure of the adapter itself is complex, which increases the production cost. Summary of the invention

[0004] The purpose of this application is to provide an endoscope adapter, an endoscope and an installation method to solve the above technical problems existing in the prior art, mainly including the following three aspects:

[0005] In a first aspect, the present application provides an endoscope adapter, comprising a tube body, in which a transition cavity is arranged, the proximal end of the tube body is used to realize the connection between the endoscope adapter and the channel tube in the endoscope handle, so that the proximal end of the transition cavity is connected with the distal end of the channel tube, and the distal end of the tube body is provided with a guiding bevel, and the guiding bevel corresponds to the tube body used to extend into the working channel of the endoscope insertion part, and the distal end of the transition cavity is connected with the proximal end of the working channel by cooperating with the inner wall of the working channel, and the relative circumferential rotation between the tube body and the working channel is limited; the guiding bevel is a smooth surface, and the matching docking point between the guiding bevel and the inner wall of the working channel is located at the proximal end of the guiding bevel.

[0006] Furthermore, the slope of the guiding slope gradually decreases from the proximal end to the distal end.

[0007] Furthermore, the guiding bevel is used to have an interference fit with the inner wall of the working channel of the endoscope insertion portion to achieve docking and communication between the distal end of the transition cavity and the proximal end of the working channel, and to limit the relative circumferential rotation between the tube body and the working channel.

[0008] The second aspect of the present application provides an endoscope, including an insertion part and a handle, the proximal end of the insertion part is connected to the distal end of the handle, a working channel is arranged on the insertion part, a channel tube and the above-mentioned endoscope adapter are arranged in the handle, and the working channel is connected to the channel tube through the endoscope adapter.

[0009] Furthermore, the working channel includes an inner concave surface corresponding to the traction rope guide channel, and the guiding inclined surface cooperates with the inner concave surface to achieve docking and connection between the distal end of the transition cavity and the proximal end of the working channel, and to limit the relative circumferential rotation between the tube body and the working channel.

[0010] Furthermore, the working channel includes a first side surface corresponding to the outer peripheral wall of the insertion part, a second side surface corresponding to the cable guide channel, and two concave surfaces corresponding to the traction rope guide channel, the concave surfaces are located on both sides of the second side surface, and the two ends of the concave surfaces are respectively connected to the first side surface and the second side surface.

[0011] Furthermore, the first side surface is a curved surface, and / or two ends of the inner concave surface are smoothly transitionally connected to the first side surface and the second side surface respectively.

[0012] Furthermore, a gap is provided between the outer wall of the tube body corresponding to the first side surface, the inner concave surface and the guiding inclined surface, and the gap is used for glue injection to achieve a sealed connection between the tube body corresponding to the gap and the working channel.

[0013] The third aspect of the present application provides a method for installing an endoscope. Based on the above endoscope, the working channel on the insertion part is installed and connected with the channel tube, comprising the following steps:

[0014] Step S100, fixing and connecting the proximal end of the tube body of the endoscope adapter and the distal end of the channel tube;

[0015] Step S200, docking the proximal end of the working channel in the insertion portion with the distal end of the tube body of the endoscope adapter, allowing the guiding bevel to abut against the inner wall of the working channel during the docking process until the distal end of the tube body and the proximal end of the working channel have an interference fit;

[0016] Step S300, injecting glue to seal between the proximal end surface of the insertion portion and the distal end surface of the channel tube.

[0017] Furthermore, in step S300, when performing glue injection sealing, glue is injected into the gap between the outer wall of the tube body and the inner wall of the working channel.

[0018] Compared with the prior art, the present invention has at least the following technical effects:

[0019] The present invention can help quickly and accurately complete the docking and connection between the working channel and the transition cavity through the guiding bevel arranged on the tube body, thereby improving the docking efficiency. At the same time, the guiding bevel and the inner wall of the working channel cooperate to remind the operator of the docking process through resistance feedback, thereby enhancing the insertion and docking fluency and the installation feel, and improving the convenience of docking and installation. After the docking, the tube body and the insertion part are mutually limited to prevent the connection from rotating relative to the circumferential direction during subsequent use, thereby improving the connection stability and the safety of use. In addition, the entire installation operation is carried out in a visual environment, which effectively improves the accuracy and efficiency of endoscope processing and assembly, and reduces the production cost of the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic structural diagram of the endoscope adapter of the present invention;

[0022] Figure 2 is a front view of the endoscope adapter of the present invention;

[0023] Figure 3 is a front view of a second endoscope adapter of the present invention;

[0024] Figure 4 is a schematic diagram of the connection between the endoscope adapter and the insertion portion of the present invention;

[0025] Figure 5 is a side view of the endoscope adapter and the insertion portion of the present invention;

[0026] Figure 6 is a schematic diagram of the connection between the endoscope adapter and the channel tube of the present invention;

[0027] Figure 7 It is a schematic structural diagram of the endoscope of the present invention;

[0028] Figure 8 yes Figure 7 A partial enlarged view of the middle A;

[0029] Fig. 9 is a side view of the insertion portion of the present invention;

[0030] In the figure,

[0031] 110, tube body; 120, transition cavity; 130, guide slope; 140, installation slope; 200, insertion part; 210, working channel; 211, first side surface; 212, inner concave surface; 213, second side surface; 220, traction rope guide channel; 230, cable guide channel; 240, gap; 310, shell; 320, channel tube; 330, mounting part. DETAILED DESCRIPTION

[0032] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] In addition, in the present invention, "proximal end" and "distal end" refer to the far and near positions of the structure relative to human operation in the use environment, so as to facilitate the description of the positional relationship between components and facilitate understanding; for the same component, "proximal end" and "distal end" are the relative positional relationship of the component, not absolute; therefore, it should be understood from the perspective of realizing the principles of the present invention, and should not deviate from the essence of the present invention.

[0037] Embodiment 1:

[0038] The present application embodiment provides an endoscope adapter, such as Figure 1 to Figure 3 As shown, it includes a tube body 110, in which a transition cavity 120 is arranged. The proximal end of the tube body 110 is used to realize the connection between the endoscope adapter and the channel tube 320 in the endoscope handle, so that the proximal end of the transition cavity 120 is connected with the distal end of the channel tube 320. The distal end of the tube body 110 is provided with a guiding bevel 130. The guiding bevel 130 corresponds to the tube body 110 and is used to extend into the working channel 210 of the endoscope insertion part 200. The guiding bevel 130 cooperates with the inner wall of the working channel 210 to realize the docking and communication between the distal end of the transition cavity 120 and the proximal end of the working channel 210, and limit the relative circumferential rotation between the tube body 110 and the working channel 10; the guiding bevel 130 is a smooth surface, and the docking point between the guiding bevel 130 and the inner wall of the working channel 210 is located at the proximal end of the guiding bevel 130.

[0039] When assembling the handle and the insertion part 200, it is necessary to guide the traction rope and the camera module pipeline on the insertion part 200 in an orderly manner in the handle, and at the same time, it is necessary to ensure that the instrument pipeline on the insertion part 200 is smoothly connected with the Y-shaped channel tube in the handle. For this reason, existing endoscope technologies, such as the system and equipment for an endoscope without a tube working channel disclosed in U.S. Patent Publication No. US20200359879A1, use an adapter in the handle to achieve a stable and orderly connection between the insertion part 200 and the handle, but the adapter has a complex structure. After the insertion part 200, the adapter and the Y-shaped channel tube are docked, it is necessary to rotate and adjust the position of the adapter so that the camera module cable and the traction rope on the insertion part 200 correspond to the opening on the adapter, and at the same time, the insertion part 2 00 maintains a stable connection with the Y-shaped channel tube in the absence of a field of view. However, if relative circumferential rotation occurs between the insertion portion 200 and the adapter during later use, the safety and stability of the cable and the traction rope will be affected. In addition, in the subsequent installation process, the traction rope and the camera module cable need to be led out in order from the corresponding openings respectively, and the front-end structure of the adapter itself imposes certain constraints on the traction rope and the cable being led out from the opening on the adapter. The above limitations not only complicate the assembly process, but also increase the manufacturing cost. In particular, for disposable endoscopes, it is difficult to meet the low-cost requirements of disposable endoscopes. In the present embodiment, the proximal end of the tube body 110 of the endoscope adapter is first fixedly connected to the distal end of the channel tube 320, such as Figure 6 Then the proximal end of the working channel 10 in the insertion portion 200 is docked with the distal end of the tube body 110 of the endoscope adapter, as shown Figure 4 and Figure 5As shown, due to the setting of the guiding bevel 130, the distal end size of the tube body 110 is small, so during the docking process, the guiding bevel 130 can be quickly and accurately inserted into the working channel 210, thereby improving the docking efficiency. At the same time, as long as the guiding bevel 130 is abutted against the working channel 210 during the docking process, when the distal end of the tube body 110 and the proximal end of the working channel 210 are interference fit, the matching docking point of the guiding bevel 130 and the inner wall of the working channel 210 is reached, and the operator can be given positive docking feedback through the increase of resistance, thereby improving the convenience of installation and docking. At the same time, since the general working channel 210 is designed as a special-shaped channel, the guiding bevel 130 can cooperate with the inner wall of the working channel 210, and the two abut against each other to prevent relative circumferential rotation between the tube body 110 and the insertion part 200, thereby improving the connection stability and use safety of the insertion part 200 and the tube body 110; then, the tube body 110 and the working channel 2 10 is sealed by injection of glue. When the injection of glue is performed, there will be a gap between the guiding bevel 130 corresponding to the tube body 110 and the inner wall of the special-shaped working channel 210. By injecting glue into the gap between the outer wall of the tube body 110 corresponding to the guiding bevel 130 and the inner wall of the working channel 210, the transition cavity 120 and the working channel 210 can be sealed, and the outer wall of the tube body 110 extending into the working channel 210 can be glued to the inner wall of the working channel 210, thereby increasing the bonding area between the insertion part 200 and the endoscope adapter, thereby further increasing the connection stability and use safety between the insertion part 200 and the endoscope adapter. At the same time, the installation operation between the insertion part 200 and the endoscope adapter is performed in a visual environment, which effectively improves the convenience and efficiency of endoscope processing and assembly, and the endoscope adapter itself has a simple structure and is easy to manufacture and process, thereby further reducing the production cost of the endoscope.

[0040] Specifically, in order to improve the docking efficiency and smoothness between the insertion part 200 and the endoscope adapter, the slope of the guide bevel 130 can be gradually reduced from the proximal end to the distal end, so that the size of the tube body 110 corresponding to the distal end of the guide bevel 130 is small, which is easier to insert into the working channel 210. At the same time, the propulsion resistance between the guide bevel 130 and the inner wall of the working channel 210 changes gradually, and the operator can be reminded of the docking progress through resistance feedback, thereby enhancing the insertion and docking smoothness and installation feel. At the same time, when the endoscope adapter and the working channel 210 are docked to the mating docking point, the distance between the mating docking point and the proximal end of the guide bevel 130 is small, which is easier to seal and connect.

[0041] In some embodiments, in order to further reduce the size of the distal end of the tube body 110 and improve the convenience of docking, a mounting bevel 140 can be provided at the distal end of the tube body 110, such as Figure 3 As shown, the installation inclined surface 140 is arranged opposite to the guiding inclined surface 130 .

[0042] Specifically, in order to improve the installation efficiency and connection stability between the insertion part 200 and the endoscope adapter, the guide bevel 130 can be set to be used for interference fit with the inner wall of the working channel 210 of the endoscope insertion part 200 to achieve docking and connection between the distal end of the transition cavity 120 and the proximal end of the working channel 210.

[0043] In some embodiments, in order to improve the convenience of processing and installation, the proximal end of the tube body 110 can be configured to have a cross-section of a circular ring, an elliptical ring, or a C-shaped structure.

[0044] Embodiment 2:

[0045] The present application embodiment provides an endoscope, such as Figures 4 to 8 As shown, it includes an insertion part 200 and a handle, the proximal end of the insertion part 200 is connected to the distal end of the handle, a working channel 210 is arranged on the insertion part 200, a channel tube 320 and the endoscope adapter in Example 1 are arranged in the handle, and the working channel 210 is connected to the channel tube 320 through the endoscope adapter.

[0046] During the installation process, the endoscope adapter can be first fixedly connected to the channel tube 320 so that the transition cavity 120 is connected to the channel tube 320, and then the working channel 210 in the insertion part 200 can be docked with the endoscope adapter. The guiding bevel 130 on the tube body 110 can quickly and accurately help complete the docking and connection between the working channel 210 and the transition cavity 120, thereby improving the docking efficiency. At the same time, the guiding bevel 130 cooperates with the inner wall of the working channel 210, and can remind the operator of the docking process through resistance feedback, thereby enhancing the smoothness of insertion and docking and the installation feel, especially when the distal end of the tube body 110 and the proximal end of the working channel 210 are interfered, that is, the matching docking point between the guiding bevel 130 and the inner wall of the working channel 210 is reached, at this time, the pushing resistance increases sharply, and the operator quickly knows whether it is installed in place by receiving the feedback resistance, thereby improving the convenience of docking installation, and after docking, the tube body 110 and the insertion part 200 are mutually limited to prevent the connection. The joint undergoes relative circumferential rotation during subsequent use, thereby improving the connection stability and safety of use. In some embodiments, in order to further improve the connection stability, the joint between the tube body 110 and the working channel 210 may be sealed by injection of glue, especially the gap between the outer wall of the tube body 110 corresponding to the guide bevel 130 and the inner wall of the working channel 210. This can not only complete the sealing between the transition cavity 120 and the working channel 210, but also glue the outer wall of the tube body 110 extending into the working channel 210 to the inner wall of the working channel 210, thereby improving the bonding area between the insertion part 200 and the endoscope adapter, thereby further increasing the connection stability and safety of use between the insertion part 200 and the endoscope adapter. Then, the channel tube 320 is installed and fixed in the shell 310 to complete the assembly of the endoscope. The entire installation operation is carried out in a visual environment, which effectively improves the accuracy and efficiency of endoscope processing and assembly, and reduces the production cost of the endoscope.

[0047] It should be noted that the working channel 210 can be a channel for instrument guidance or a channel for sputum suction, which is not specifically limited here.

[0048] In some embodiments, in order to simplify the structure of the endoscope, the channel tube 320 can be integrated with the endoscope adapter.

[0049] Specifically, in order to further improve the docking and installation efficiency between the insertion part 200 and the endoscope adapter, on the basis of ensuring the structural stability of the insertion part 200, the working channel 210 can be configured to include an inner concave surface 212 corresponding to the traction rope guide channel 220, such as Figure 5 and Fig. 9As shown, the guide slope 130 cooperates with the inner concave surface 212 to achieve docking and communication between the distal end of the transition cavity 120 and the proximal end of the working channel 210 , and to limit the relative circumferential rotation between the tube body 110 and the working channel 210 .

[0050] Specifically, the working channel 210 is generally designed as a special-shaped structure, which can be specifically configured to include a first side surface 211 corresponding to the outer peripheral wall of the insertion portion 200, a second side surface 213 corresponding to the cable guide channel 230, and two inner concave surfaces 212 corresponding to the traction rope guide channel 220. Figure 5 and Fig. 9 As shown, the inner concave surface 212 is located on both sides of the second side surface 213, and the two ends of the inner concave surface 212 are respectively connected to the first side surface 211 and the second side surface 213, so that the second side surface 213 is set corresponding to the cable guide channel 230, and the inner concave surface 212 is set corresponding to the traction rope guide channel 220, thereby increasing the passing space of each cavity on the insertion part 200 while ensuring the stability of the structure.

[0051] Specifically, in order to increase the cross-sectional area of ​​the working channel 210 , the first side surface 211 may be set as a curved surface, and the curvature of the first side surface 211 may be set to match the curvature of the outer peripheral wall of the corresponding insertion portion 200 .

[0052] Specifically, in order to reduce the resistance during the docking process between the insertion portion 200 and the endoscope adapter, the two ends of the inner concave surface 212 can be smoothly transitionally connected to the first side surface 211 and the second side surface 213 respectively.

[0053] Specifically, a gap 240 is provided between the first side surface 211, the inner concave surface 212 and the outer wall of the tube body 110 corresponding to the guiding bevel 130, and the gap 240 is used for glue injection to achieve a sealed connection between the tube body 110 corresponding to the gap 240 and the working channel 210; during the glue injection process, when glue is injected into the gap 240, the glue will enter between the inner wall of the working channel 210 and the outer wall of the tube body 110 corresponding to the guiding bevel 130 through the gap 240, and then glue the inner wall of the working channel 210 and the outer wall of the tube body 110 corresponding to the guiding bevel 130, which not only increases the bonding area between the insertion part 200 and the endoscope adapter, but also completes the sealing between the transition cavity 120 and the working channel 210, thereby increasing the connection stability and use safety between the insertion part 200 and the endoscope adapter.

[0054] Specifically, the handle includes a shell 310, and the endoscope adapter and the channel tube 320 are located in the shell 310. The distal end of the shell 310 is provided with a mounting member 330, and the mounting member 330 is used to realize the detachable connection between the endoscope insertion part 200 and the shell 310. The endoscope adapter is located between the mounting member 330 and the channel tube 320. When assembling and processing the endoscope, the endoscope adapter can be docked with the channel tube 320 first, and the mounting member 330 can be fixed at the proximal end of the insertion part 200, and then the insertion part 200 can be docked with the endoscope adapter. After docking in place, the mounting member 330, the channel tube 320 and the shell 310 are fixedly connected respectively, so that the endoscope adapter is adapted, connected and fixed to the insertion part 200 and the channel tube 320, and the processing is convenient.

[0055] In some embodiments, in order to reduce the occupation of the inner space of the working channel 10 by the distal end of the tube body 110 , an avoidance groove matching the guide slope 130 corresponding to the tube body 110 may be provided on the inner wall of the proximal end of the working channel 210 .

[0056] In some embodiments, in order to facilitate the tube body 110 to be quickly and accurately inserted into the working channel 210, the proximal end of the working channel 210 can be set to a wide-mouth structure.

[0057] It should also be noted that the endoscope in the embodiments of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not specifically limit the type of endoscope.

[0058] In some embodiments, in order to avoid the endoscope adapter from obstructing the guiding installation of the traction rope and the camera module cable, an avoidance cavity can be provided on the tube body 110, and the avoidance cavity is used to avoid the guiding targets in the traction rope guide channel 220 and the cable guide channel 230; it should be noted that the guiding target in the traction rope guide channel 220 is the traction rope, and the guiding target in the cable guide channel 230 is the camera module cable.

[0059] Embodiment 3:

[0060] The embodiment of the present application provides a method for installing an endoscope. Based on the endoscope in Embodiment 2, the working channel 210 on the insertion part 200 is installed and connected with the channel tube 320, comprising the following steps:

[0061] Step S100, the proximal end of the tube body 110 of the endoscope adapter is fixedly connected to the distal end of the channel tube 320;

[0062] Step S200, docking the proximal end of the working channel 210 in the insertion part 200 with the distal end of the tube body 110 of the endoscope adapter, allowing the guiding bevel 130 to abut against the inner wall of the working channel 210 during the docking process, and advancing the docking until the distal end of the tube body 110 and the proximal end of the working channel 210 are in interference fit; through the cooperation between the guiding bevel 130 and the inner wall of the working channel 210, the operator can be reminded of the docking process through resistance feedback, thereby enhancing the smoothness of insertion and docking and the installation feel, especially when the distal end of the tube body 110 and the proximal end of the working channel 210 are in interference fit, that is, the matching docking point between the guiding bevel 130 and the inner wall of the working channel 210 is reached, at which time the advancing resistance increases sharply, and the operator quickly knows whether the installation is in place by receiving the feedback resistance, thereby improving the convenience of docking installation, and after docking, the tube body 110 and the insertion part 200 are mutually limited and constrained to prevent the connection from rotating relative to the circumferential direction during subsequent use, thereby improving the connection stability and safety of use;

[0063] In step S300, glue is injected and sealed between the proximal end face of the insertion part 200 and the distal end face of the channel tube 320, so that the insertion part 200, the tube body 110 and the channel tube 320 can be glued together at the same time, effectively improving the connection stability; it should be noted that when injecting glue and sealing, a passage for the traction rope and the cable needs to be reserved.

[0064] Specifically, in step S300, when performing glue injection sealing, glue is injected into the gap 240 between the outer wall of the tube body 110 and the inner wall of the working channel 210; when injecting glue into the gap 240, the glue will enter between the inner wall of the working channel 210 and the outer wall of the tube body 110 corresponding to the guide bevel 130 through the gap 2420, and then glue the inner wall of the working channel 210 and the outer wall of the tube body 110 corresponding to the guide bevel 130, which not only increases the bonding area between the insertion part 200 and the endoscope adapter, but also completes the sealing between the transition cavity 120 and the working channel 210, thereby increasing the connection stability and use safety between the insertion part 200 and the endoscope adapter.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An endoscope adapter, It is characterized in that The invention comprises a tube body (110), wherein a transition cavity (120) is arranged in the tube body (110), and the proximal end of the tube body (110) is used to realize the connection between the endoscope adapter and the channel tube (320) in the endoscope handle, so that the proximal end of the transition cavity (120) is connected with the distal end of the channel tube (320), and the distal end of the tube body (110) is provided with a guiding inclined surface (130), and the guiding inclined surface (130) corresponds to the tube body (110) and is used to extend into the endoscope insertion part (200). ), the guiding bevel (130) cooperates with the inner wall of the working channel (210) to achieve docking and communication between the distal end of the transition cavity (120) and the proximal end of the working channel (210), and restricts the relative circumferential rotation between the tube body (110) and the working channel (210); the guiding bevel (130) is a smooth surface, and the docking point between the guiding bevel (130) and the inner wall of the working channel (210) is located at the proximal end of the guiding bevel (130).

2. The endoscope adapter according to claim 1, It is characterized in that From the proximal end to the distal end, the slope of the guiding slope (130) gradually decreases.

3. The endoscope adapter according to claim 1 or 2, It is characterized in that The guiding bevel (130) is used to have an interference fit with the inner wall of the working channel (210) of the endoscope insertion portion (200), so as to achieve docking and communication between the distal end of the transition cavity (120) and the proximal end of the working channel (210), and to limit the relative circumferential rotation between the tube body (110) and the working channel (210).

4. An endoscope, It is characterized in that The invention comprises an insertion part (200) and a handle, wherein the proximal end of the insertion part (200) is connected to the distal end of the handle, a working channel (210) is arranged on the insertion part (200), a channel tube (320) and an endoscope adapter according to any one of claims 1 to 3 are arranged in the handle, and the working channel (210) is connected to the channel tube (320) through the endoscope adapter.

5. The endoscope according to claim 4, It is characterized in that The working channel (210) includes an inner concave surface (212) arranged corresponding to the traction rope guide channel (220), and the guiding inclined surface (130) cooperates with the inner concave surface (212) to achieve docking and communication between the distal end of the transition cavity (120) and the proximal end of the working channel (210), and to limit the relative circumferential rotation between the tube body (110) and the working channel (210).

6. The endoscope according to claim 5, It is characterized in that The working channel (210) comprises a first side surface (211) arranged corresponding to the outer peripheral wall of the insertion portion (200), a second side surface (213) arranged corresponding to the cable guide channel (230), and two inner concave surfaces (212) arranged corresponding to the traction rope guide channel (220), wherein the inner concave surfaces (212) are located on both sides of the second side surface (213), and the two ends of the inner concave surfaces (212) are respectively connected to the first side surface (211) and the second side surface (213).

7. The endoscope according to claim 6, It is characterized in that The first side surface (211) is a curved surface, and / or the two ends of the inner concave surface (212) are respectively smoothly transitionally connected to the first side surface (211) and the second side surface (213).

8. The endoscope according to claim 7, It is characterized in that A gap (240) is provided between the first side surface (211), the inner concave surface (212) and the outer wall of the tube body (110) corresponding to the guiding inclined surface (130), and the gap (240) is used for injecting glue to achieve a sealed connection between the tube body (110) corresponding to the gap (240) and the working channel (210).

9. A method for installing an endoscope, It is characterized in that Based on the endoscope according to any one of claims 4 to 8, the working channel (210) on the insertion part (200) is installed and connected with the channel tube (320), comprising the following steps: Step S100, the proximal end of the tube body (110) of the endoscope adapter is fixedly connected to the distal end of the channel tube (320); Step S200, docking the proximal end of the working channel (210) in the insertion portion (200) with the distal end of the tube body (110) of the endoscope adapter, allowing the guiding bevel (130) to abut against the inner wall of the working channel (210) during the docking process until the distal end of the tube body (110) and the proximal end of the working channel (210) are in interference fit; Step S300, performing glue injection sealing between the proximal end surface of the insertion part (200) and the distal end surface of the channel tube (320).

10. The installation method according to claim 9, It is characterized in that In step S300, when performing glue injection sealing, glue is injected into the gap (240) between the outer wall of the tube body (110) and the inner wall of the working channel (210).

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