A front-end component, an insertion portion, and an endoscope

Abstract

The present invention discloses a front-end component, an insertion part and an endoscope, belonging to the technical field of endoscopes. The front-end component includes a front-end seat, a guiding member and an adjusting member. The front-end seat has an instrument channel, and the distal opening of the instrument channel is located at the circumferential side wall of the front-end seat; the guiding member is movably connected to the front-end seat and can move relative to the front-end seat so that at least a part of the guiding member moves outside the front-end seat, and the angle between the part of the guiding member located outside the front-end seat and the radius of the front-end seat is less than 90 degrees; the adjusting member is installed on the guiding member; when at least a part of the guiding member extends outside the front-end seat, the adjusting member can extend outside the front-end seat synchronously with the guiding member; and at least a part of the distal opening is located on the proximal side of the guiding member and is used for guiding wires to pass through; the adjusting member can deform and / or move towards the proximal side of the guiding member to push the guiding wire located on the proximal side of the guiding member to move. This application provides an adjusting member to adjust the position of the guiding wire, improving the adjustment accuracy of the position of the end of the guiding wire.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to a front-end assembly, an insertion portion and an endoscope. Background Art

[0002] An endoscope is a medical device. The endoscope includes an insertion portion, a front-end seat is provided at the distal end of the insertion portion, and a camera module is mounted on the front-end seat. The insertion portion can enter the human body through a natural body cavity or a surgical incision of the human body to provide sufficient diagnostic information for doctors to treat diseases.

[0003] In the operation of ERCP (Endoscopic Retrograde Cholangiopancreatography), it is necessary to first pass a guide wire through the duodenal papilla into the common bile duct or the main pancreatic duct. However, due to the small hole of the duodenal papilla itself, in actual operation, it is difficult to pass the guide wire through the duodenal papilla, and moreover, it is easy to cause damage to the duodenal papilla and the inner wall of the nearby cavity, increasing the surgical risk. Summary of the Invention

[0004] The purpose of this application is to provide a front-end assembly, an insertion portion and an endoscope to solve the above technical problems existing in the prior art.

[0005] This application is implemented as follows:

[0006] In a first aspect, an embodiment of this application provides a front-end assembly applied to an endoscope, including a front-end seat, a guiding member and an adjusting member. The front-end seat has an instrument channel, and the distal opening of the instrument channel is located at the circumferential side wall of the front-end seat; the guiding member is movably connected to the front-end seat, and the guiding member can move relative to the front-end seat so that at least a part of the guiding member moves outside the front-end seat, and the included angle between the part of the guiding member located outside the front-end seat and the radius of the front-end seat is less than 90 degrees; the adjusting member is mounted on the guiding member; in the case where at least a part of the guiding member extends outside the front-end seat, the adjusting member can extend outside the front-end seat synchronously with the guiding member; and at least a part of the distal opening is located on the proximal side of the guiding member and is used for the guide wire to pass through; the adjusting member can deform and / or move towards the proximal side of the guiding member to push the guide wire located on the proximal side of the guiding member to move.

[0007] In a second aspect, an embodiment of this application provides an insertion portion, including the front-end assembly provided in the first aspect embodiment.

[0008] In a third aspect, an embodiment of this application provides an endoscope, including the insertion portion provided in the second aspect embodiment.

[0009] The technical solution provided by this application can achieve the following beneficial effects:

[0010] In the present application, a guiding member is provided to extend out of the front end seat, at least a part of the distal opening of the instrument channel is located on the proximal side of the guiding member, the movement range of the guide wire extending out of the distal opening is restricted to the proximal side of the guiding member, and an adjusting member is provided. The adjusting member can deform and / or move towards the proximal side of the guiding member, so as to push the guide wire located on the proximal side of the guiding member to move and adjust the position of the guide wire. Since the adjusting member is located outside the front end seat and is relatively close to the end of the guide wire, when the adjusting member pushes the guide wire to move, the moving distance of the end of the guide wire is short, which can improve the adjustment accuracy of the position of the end of the guide wire to a certain extent, making it easier for the guide wire to correspond to the hole on the duodenal papilla, thereby reducing the difficulty for the operator to control the guide wire to pass through the duodenal papilla, reducing the probability of damage to the duodenal papilla and the inner wall of the nearby cavity, and reducing the surgical risk. Brief Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 is a schematic diagram of the overall structure of the front end assembly provided by some embodiments of the present application;

[0013] Figure 2 is a schematic diagram of the cooperation between the front end assembly and the guide wire provided by some embodiments of the present application Figure 1 ;

[0014] Figure 3 is a cross-sectional view of the cooperation structure between the front end assembly and the guide wire provided by some embodiments of the present application Figure 1 ;

[0015] Figure 4 is a cross-sectional view of the cooperation structure between the front end assembly and the guide wire provided by some embodiments of the present application Figure 2 ;

[0016] Figure 5 is a schematic diagram of the structure of the front end seat provided by some embodiments of the present application;

[0017] Figure 6 is a schematic diagram of the structure of the guiding member provided by some embodiments of the present application Figure 1 ;

[0018] Figure 7 is a schematic diagram of the structure of the guiding member provided by some embodiments of the present application Figure 2 ;

[0019] Figure 8Schematic diagram of the cooperation between the front-end component and the guide wire provided by some embodiments of the present application Figure 2 ;

[0020] Figure 9 Cross-section of the cooperation structure between the front-end component and the guide wire provided by some embodiments of the present application Figure 3 ;

[0021] Figure 10 Schematic diagram of the structure of the guide provided by some embodiments of the present application Figure 3 ;

[0022] Figure 11 Schematic diagram of the cooperation between the front-end component and the guide wire provided by some embodiments of the present application Figure 3 ;

[0023] Figure 12 Cross-section of the cooperation structure between the front-end component and the guide wire provided by some embodiments of the present application Figure 4 ;

[0024] Figure 13 Schematic diagram of the structure of the guide provided by some embodiments of the present application Figure 4 ;

[0025] Figure 14 Schematic diagram of the structure of the endoscope provided by some embodiments of the present application;

[0026] Figure 15 Schematic diagram of the use of the endoscope provided by some embodiments of the present application.

[0027] In the figure: 100 - front-end seat, 110 - instrument channel, 111 - distal opening, 120 - mounting groove, 121 - first extension section, 122 - second extension section, 123 - third extension section, 130 - assembly groove, 200 - guide, 300 - adjusting member, 400 - trachea, 500 - elastic member, 600 - guide wire, 700 - connection block, 800 - camera module, 900 - pre-bent section, 10 - endoscope, 11 - endoscope handle, 12 - insertion portion, 21 - common bile duct, 22 - main pancreatic duct, 23 - major duodenal papilla, 24 - duodenum. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope protected by the present invention.

[0029] In the specification and claims, "and / or" means at least one of the connected objects. The character " / ", generally, indicates an "or" relationship between the associated objects before and after.

[0030] In the embodiments of the present application, "proximal end" and "distal end" refer to the relative distances of the endoscope and its accessories from the user in the usage environment. Among them, the end closer to the user is designated as the "proximal end", and the end farther from the user is designated as the "distal end".

[0031] In an ERCP operation, the outlet of the instrument channel of the endoscope used is located on the circumferential side wall of the front end seat, and the camera module is also arranged on the circumferential side wall of the front end seat. The guide wire is inserted into the instrument channel. When the guide wire extends into the front end seat, the guide wire bends inside the front end seat and then extends out towards the outlet of the instrument channel located on the circumferential side wall of the front end seat. In the related art, generally, a wire lifter is arranged inside the front end seat of the insertion part. The wire lifter contacts a part of the guide wire located inside the front end seat, and the wire lifter is used to drive the guide wire to move, thereby controlling the position of the distal end of the guide wire so that the distal end of the guide wire is aligned with the hole of the duodenal papilla. In actual operation, it is difficult to align the guide wire with the hole of the duodenal papilla.

[0032] After research by the inventor, it is found that since the contact point between the wire lifter and the guide wire is far from the distal end of the guide wire, a small movement of the wire lifter will also cause a large movement of the distal end of the guide wire. Therefore, the control accuracy of the position of the distal end of the guide wire by the wire lifter is low, resulting in difficulty in aligning the guide wire with the duodenal papilla.

[0033] In view of this, the embodiments of the present application provide a front end assembly, which is applied to the endoscope 10. The front end assembly includes a front end seat 100, a guiding member 200, and an adjusting member 300.

[0034] Refer to Figures 1 to 5 As shown, the front end seat 100 has an instrument channel 110. The distal opening 111 of the instrument channel 110 is located on the circumferential side wall of the front end seat 100, and the camera module 800 is also installed on the circumferential side wall of the front end seat 100. During the operation, the circumferential side wall of the front end seat 100 is aligned with the duodenal papilla 23, and the guide wire 600 extends out from the distal opening 111 located on the circumferential side wall of the front end seat 100, facilitating the extension of the guide wire 600 to the duodenal papilla 23. The instrument channel 110 of the front end seat 100 is used not only for the insertion of the guide wire 600 but also for the insertion of other instrument components required during the operation, such as a catheter, etc.

[0035] The guide member 200 is movably connected to the front end seat 100. The guide member 200 can move relative to the front end seat 100 to change the position of the guide member 200 so that at least a part of the guide member 200 can move to the position of the front end seat 100. And the included angle between the part of the guide member 200 outside the front end seat 100 and the radial direction of the front end seat 100 is less than 90 degrees. Refer to Figure 8 , Figure 9 , Figure 11 and Figure 12 as shown. The adjusting member 300 is installed on the guide member 200. Refer to Figure 6 , Figures 8 to 13 as shown.

[0036] The included angle between the guide member 200 outside the front end seat 100 and the front end seat 100 is restricted to ensure that when the guide member 200 moves outward from the front end seat 100, the guide member 200 has a component in the radial direction of the front end seat 100. During actual surgical operations, the guide member 200 can approach the duodenal papilla 23 corresponding to the side wall of the front end seat 100, facilitating the guiding of the guide wire 600 by the guide member 200.

[0037] When at least a part of the guide member 200 extends outside the front end seat 100, the adjusting member 300 can extend outside the front end seat 100 synchronously with the guide member 200. And at least a part of the distal opening 111 is located on the proximal side of the guide member 200 and is used for the guide wire 600 to pass through. In the embodiment of the present application, there are restrictions on the relative positions of the guide member 200 and the distal opening 111, so that at least a part of the distal opening 111 is located on the proximal side of the guide member 200. This part of the distal opening 111 is used for the guide wire 600 to pass through, and the guide wire 600 extends out from this part of the distal opening 111. The adjusting member 300 can deform and / or move towards the proximal side of the guide member 200 to push the guide wire 600 located on the proximal side of the guide member 200 to move.

[0038] The adjusting member 300 is located outside the front end seat 100. By deforming and / or moving the adjusting member 300, the guide wire 600 is pushed to move, thereby changing the position of the distal end of the guide wire 600 so that the distal end of the guide wire 600 can be aligned with the hole of the duodenal papilla 23. Compared with the forceps lifter in the related art, the position of the adjusting member 300 provided in the embodiment of the present application is closer to the distal end of the guide wire 600. A small movement of the adjusting member 300 will not cause a large movement of the distal end of the guide wire 600. The adjusting member 300 has higher control precision for the distal end of the guide wire 600. The distal end of the guide wire 600 is more likely to be aligned with the hole of the duodenal papilla 23, reducing the difficulty of inserting the guide wire 600 into the duodenal papilla 23, reducing the probability of damage to the duodenal papilla 23 and the inner wall of the nearby cavity, and reducing the surgical risk.

[0039] The adjusting member 300 needs to extend out of the front end seat 100 together with the guiding member 200. Only when the two cooperate can the position of the guide wire 600 be accurately controlled. The farther the adjusting member 300 is from the front end seat 100, the closer it is to the distal end of the guide wire 600, and the higher the adjustment accuracy of the distal end of the guide wire 600.

[0040] The guide wire 600 extends out of the front end seat 100. Refer to Figure 3 and Figure 4 As shown, the bending point of the guide wire 600 in the instrument channel 110 is close to the distal end of the front end seat 100. The guide wire 600 moves outwards towards the outside of the front end seat 100 close to the inner wall of the instrument channel 110 near the distal end of the front end seat 100. Compared with the guiding member 200 being located on the proximal side of the guide wire 600, when the guiding member 200 is arranged on the distal side of the guide wire 600, the distance between the guide wire 600 and the guiding member 200 is closer, which is more convenient for the adjusting member 300 to adjust the position of the guide wire 600. Moreover, after the guide wire 600 extends out of the instrument channel 110, the proximal side of the guide wire 600 is the inside of the instrument channel 110, and the distal side is the inner wall of the instrument channel 110, restricting the guiding member 200 and the adjusting member 300 to be located on the distal side of the guide wire 600, ensuring that when the adjusting member 300 acts, it can smoothly push the guide wire 600 to adjust its position towards the inside of the instrument channel 110.

[0041] In addition, the guiding member 200 is located on the distal side of the guide wire 600, and the guiding member 200 can also limit and guide the guide wire 600. Even if the guide wire 600 accidentally moves towards the distal end direction of the front end seat 100 after extending out of the instrument channel 110, the guiding member 200 is on the moving path of the guide wire 600, preventing the guide wire 600 from continuing to move. And after the guide wire 600 contacts the guiding member 200, it can also move along the extending direction of the guiding member 200 to smoothly reach the target position.

[0042] The guiding member 200 can generally be selected as a plate-like structure, which has a better limiting and guiding effect on the guide wire 600. At the same time, the adjusting member 300 also needs to be set wider to ensure that the adjusting member 300 can smoothly contact the guide wire 600 and adjust the position of the guide wire 600.

[0043] Since the guiding member 200 is provided to extend out of the front end seat 100 in this application, the guiding member 200 can be tightly fitted with the inner wall of the cavity near the duodenal papilla 23, thereby restricting the position of the front end seat 100, making the position of the front end seat 100 relatively stable and facilitating the adjustment of the guide wire 600. At the same time, the guiding member 200 can also relatively expand the duodenal papilla 23 and the front end seat 100, increasing the surgical operation space and facilitating subsequent surgical operations. The guiding member 200 can be partially extended out of the front end seat 100 or all extended out of the front end seat 100.

[0044] For the use of the front-end component, please refer to Figure 15 As shown, the endoscope 10 is inserted into the duodenum 24. The guide member 200 extends from the front-end seat 100 and abuts against the wall of the cavity around the duodenal papilla 23 to stabilize the position of the front-end seat 100 and at the same time create a certain operating space. The common bile duct 21 and the main pancreatic duct 22 communicate with the duodenal papilla 23. Then, control the guide wire 600 to extend from the front-end seat 100. When the distal end of the guide wire 600 moves around the duodenal papilla 23, control the adjusting member 300 to start deforming and / or moving. The adjusting member 300 is located between the guide wire 600 and the guide member 200. After the adjusting member 300 changes, it will push the position of the guide wire 600 to move, so that the guide wire 600 can be aligned with the hole of the duodenal papilla 23.

[0045] The guide member 200 can be installed in the instrument channel 110, and the guide member 200 directly extends from the instrument channel 110 to the outside of the instrument channel 110. The guide member 200 can also be installed around the instrument channel 110, inside the front-end seat 100, and extend from inside the front-end seat 100 towards the outside of the front-end seat 100. In other embodiments, the guide member 200 can also be located at the distal end face of the front-end seat 100, slidably cooperate with the distal end face of the front-end seat 100, and move radially outward along the front-end seat 100 from the distal end face of the front-end seat 100.

[0046] The adjusting member 300 is installed on the guide member 200. After the guide member 200 extends outside the front-end seat 100, the adjusting member 300 can also move outside the front-end seat 100 synchronously with the guide member 200. The closer the adjusting member 300 is to the end of the guide member 200, the farther the adjusting member 300 is from the front-end seat 100, and the higher the control accuracy of the guide wire 600. It should be noted that the synchronization of the adjusting member 300 and the guide member 200 moving outside the front-end seat 100 means that during the process of the guide member 200 moving towards the outside of the front-end seat 100, the adjusting member 300 installed on the guide member 200 can also move outside the front-end seat 100 following the guide member 200. Synchronization refers to the synchronization of the movement actions, and does not mean synchronization in time, nor does it mean that the guide member 200 and the adjusting member 300 move outside the front-end seat 100 at the same time.

[0047] In some preferred embodiments, a groove can be provided on the guide member 200, and the adjusting member 300 is installed in the groove, so that before the adjusting member 300 deforms and / or moves, the surface of the adjusting member 300 can be flush with the surface of the guide member 200, avoiding the convexity of the adjusting member 300 relative to the surface of the guide member 200 from affecting the action of the guide wire 600 extending out of the instrument channel 110 and avoiding the adjusting member 300 from hindering the extension of the guide wire 600.

[0048] In some embodiments of the present application, refer to Figures 1 to 5As shown, the front end seat 100 is provided with a mounting groove 120. The mounting groove 120 is arranged adjacent to the instrument channel 110. The mounting groove 120 is used for mounting the guiding member 200. And the opening of the mounting groove 120 is located at the circumferential side wall of the front end seat 100 and on the distal side of the distal opening 111.

[0049] The guiding member 200 is installed in the mounting groove 120. The setting position of the mounting groove 120 needs to be adapted to the guiding member 200. Therefore, the opening of the mounting groove 120 is arranged at the circumferential side wall of the front end seat 100, so that the guiding member 200 can protrude from the circumferential side wall of the front end seat 100, restricting the protruding direction of the guiding member 200 and avoiding the situation that the guiding member 200 protrudes along the axial direction of the front end seat 100. And the opening of the mounting groove 120 is located on the distal side of the distal opening 111, ensuring that the guiding member 200 is located on the distal side of the guide wire 600, which is convenient for the adjusting member 300 to adjust the position of the guide wire 600.

[0050] The mounting groove 120 is provided to limit the position of the guiding member 200, avoiding the guiding member 200 being located in the instrument channel 110 and affecting the normal use of the guide wire 600. At the same time, when the guiding member 200 is not needed, the guiding member 200 can be retracted into the mounting groove 120, avoiding the existence of the guiding member 200 affecting the normal movement and use of the front end seat 100.

[0051] In some preferred embodiments of the present application, with reference to Figures 3 to 5 As shown, the mounting groove 120 extends from the circumferential side wall of the front end seat 100 towards the proximal end of the front end seat 100. The mounting groove 120 extends substantially along the axial direction of the front end seat 100, and the guiding member 200 located in the mounting groove 120 can move more smoothly. And, since the mounting groove 120 extends towards the proximal end of the front end seat 100, the mounting groove 120 can be set to be as long as possible, thereby increasing the length of the guiding member 200 installed in the mounting groove 120. After the length of the guiding member 200 is increased, the length that the guiding member 200 can protrude from the front end seat 100 is also increased, so as to adapt to different surgical conditions and improve the use flexibility of the front end assembly.

[0052] Further preferably, with reference to Figure 5As shown, from the proximal end to the distal end of the front seat 100, the installation groove 120 sequentially includes a first extension section 121, a second extension section 122, and a third extension section 123. The first extension section 121 extends along the axial direction of the front seat 100. The second extension section 122 is an arc-shaped structure that connects the first extension section 121 and the third extension section 123. The third extension section 123 extends along the radial direction of the front seat 100, and the opening of the installation groove 120 is located at the third extension section 123. After the guide member 200 extends out from the third extension section 123, it is restricted by the third extension section 123, so that the guide member 200 can move along the radial direction of the front seat 100, making the distance between the guide member 200 and the guide wire 600 as short as possible, which is more convenient for the adjusting member 300 to adjust the position of the guide wire 600.

[0053] In some embodiments, the guide member 200 is straight. When installed in the installation groove 120, it is forced to bend due to the restriction of the installation groove 120. When the guide member 200 extends out of the installation groove 120, it is restricted by the third extension section 123, and the part of the guide member 200 outside the installation groove 120 extends along the radial direction of the front seat 100, which is more convenient for tightly fitting with the inner wall of the body cavity.

[0054] During the surgical operation, the distal end of the guide member 200 needs to be tightly fitted with the inner wall of the human body cavity. In some embodiments of the present application, a pre-bent section 900 is connected to the end of the guide member 200, as shown in Figures 11 to 13 As shown. And when at least part of the guide member 200 is outside the front seat 100, the pre-bent section 900 is outside the front seat 100. The pre-bent section 900 is located on the distal side of the guide member 200. The surface of the pre-bent section 900 is used to tightly fit against the inner wall of the cavity, increasing the contact area between the guide member 200 and the inner wall of the body cavity, reducing the force per unit area on the inner wall of the body cavity, thereby reducing the risk of damage to the inner wall of the human body cavity and improving the comfort of the patient.

[0055] At the same time, the pre-bent section 900 is located on the distal side of the guide member 200 to avoid affecting the elongation of the guide wire 600. When the guide member 200 is installed in the installation groove 120, the pre-bent section 900 can also be received in the installation groove 120, and the pre-bent section 900 is restricted by the groove wall of the installation groove 120 to prevent it from being exposed outside the front seat 100 and affecting the normal movement of the front seat 100 in the body cavity. When the pre-bent section 900 extends out of the installation groove 120, the pre-bent section 900 can be normally bent. The guide member 200 and the pre-bent section 900 can be an integrally formed structure. The bending angle of the pre-bent section 900 is preferably greater than or equal to 120 degrees to prevent the end of the pre-bent section 900 from tightly fitting against the inner wall of the body cavity.

[0056] In some embodiments of the present application, the adjusting member 300 is an airbag structure. The adjusting member 300 is connected to an air tube 400. The distal end of the air tube 400 communicates with the adjusting member 300. The proximal end of the air tube 400 extends towards the endoscope handle 11 corresponding to the front-end assembly for connecting to an air source.

[0057] In the structure of the endoscope 10, the front-end seat 100 is located at the distal end of the insertion portion 12. The proximal end of the insertion portion 12 is connected to the endoscope handle 11. The proximal end of the air tube 400 extends to the endoscope handle 11 to facilitate connection to an air source for inflating the adjusting member 300.

[0058] Before the adjusting member 300 is inflated, reference can be made to Figure 6 and Figure 7 as shown. After the adjusting member 300 is inflated, reference can be made to Figures 8 to 13 as shown. The adjusting member 300 inflates and expands to push the guide wire 600 to move and adjust the position of the guide wire 600.

[0059] In some other embodiments, the adjusting member 300 can be movably connected to the guiding member 200, and the position of the guide wire 600 is adjusted by the movement of the adjusting member 300. Exemplarily, the guiding member 200 is driven by electromagnetic force or electric power.

[0060] The movable connection between the guiding member 200 and the front-end seat 100 can be directly driven by electric power in some embodiments. In some other embodiments of the present application, a combined structure of an elastic member 500 and a control rope can be used to control the position of the guiding member 200.

[0061] Reference Figure 4 , Figure 9 , and Figure 12 as shown, the front-end assembly further includes an elastic member 500 and a control rope. The elastic member 500 is fixed between the front-end seat 100 and the guiding member 200. When the guiding member 200 does not extend out of the installation groove 120, the elastic member 500 is in a stretched state, and the stretched elastic member 500 is used to drive the guiding member 200 to move out of the installation groove 120.

[0062] The proximal end of the control rope is fixed to the guiding member 200, and the distal end of the control rope extends towards the endoscope handle 11 corresponding to the front-end assembly to facilitate the operator to control the control rope. The control rope is fixed to the guiding member 200, and the guiding member 200 can be driven to move in the installation groove 120 by pulling the control rope. At the same time, since the guiding member 200 is also connected to the elastic member 500, the length of the elastic member 500 will change when the position of the guiding member 200 changes.

[0063] The operator pulls the control rope to control the guiding member 200 to move towards the endoscope handle 11. When the control rope is released, the guiding member 200 moves out of the installation groove 120 under the drive of the elastic member 500.

[0064] Reference Figure 6 and Figure 7 As shown, when the guide member 200 does not extend out of the installation groove 120, the elastic member 500 is in a stretched state. Reference Figure 10 、 Figure 12 and Figure 13 As shown, when the guide member 200 extends out of the installation groove 120, the length of the elastic member 500 decreases and the degree of stretching weakens.

[0065] The elastic member 500 can be installed in the installation groove 120 and connected to the guide member 200. The elastic member 500 can be a spring structure or a structure made of other elastic materials such as rubber. In some embodiments, the front end seat 100 is further provided with an assembly groove 130, and the assembly groove 130 is connected to the installation groove 120. Reference Figure 5 As shown. A part of the elastic member 500 is installed in the assembly groove 130, and the other part extends to the installation groove 120 to be connected to the guide member 200. The provision of the assembly groove 130 provides sufficient installation space for the elastic member 500, correspondingly allowing a longer elastic member 500 to be installed, and providing a more sufficient driving force for the guide member 200.

[0066] In some preferred embodiments, when the adjusting member 300 is an airbag structure, the adjusting member 300 is connected to a trachea 400, the distal end of the trachea 400 communicates with the adjusting member 300, and the proximal end of the trachea 400 extends towards the endoscope handle 11 corresponding to the front end seat 100, the control rope is the trachea 400. By directly using the trachea 400 as the control rope and using the trachea 400 to drive the guide member 200 to move, the structure of the front end assembly can be simplified.

[0067] It should be noted that in addition to being connected to the adjusting member 300, the trachea 400 is also connected to the guide member 200. To prevent the connection between the trachea 400 and the two from falling off, the connection parts of the airbag and the two can be additionally fixed with more glue. Additionally, in some embodiments, a connecting block 700 is further provided. Reference Figure 6 and Figure 7 As shown, the connecting block 700 is used to connect the guide member 200, the trachea 400, and the elastic member 500 simultaneously to ensure that when the trachea 400 pulls the guide member 200 to move, the elastic member 500 can expand and contract synchronously.

[0068] The embodiment of the present application also provides an insertion portion 12, including the front end assembly provided in any of the above embodiments. Reference Figure 14 As shown, the front end seat 100 of the front end assembly is located at the farthest end of the insertion portion 12.

[0069] The embodiment of the present application also provides an endoscope 10, including the insertion portion 12 provided in the above embodiment. ReferenceFigure 14 As shown, the endoscope 10 further includes an endoscope handle 11, and the proximal end of the insertion portion 12 is connected to the endoscope handle 11.

[0070] The endoscope 10 provided by the embodiment of the present application may be a bile and pancreatic endoscope 10, or may be a nephroscope, a bronchoscope 400, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasal endoscope, an oral endoscope, a laryngoscope, a vaginoscope, a laparoscope, an arthroscope, etc. endoscopes 10 that need to adjust the position of the protruding component. The embodiment of the present application does not specifically limit the type of the endoscope 10.

[0071] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0072] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention.

Claims

1. A front end assembly, applied to an endoscope (10), characterized in that: include: A front end seat (100), the front end seat (100) having an instrument channel (110), the distal end opening (111) of the instrument channel (110) being located at a circumferential side wall of the front end seat (100); a guide member (200), the guide member (200) being movably connected to the front end seat (100), the guide member (200) being capable of moving relative to the front end seat (100), so that at least a portion of the guide member (200) moves outside the front end seat (100), and an angle between a portion of the guide member (200) located outside the front end seat (100) and a radial direction of the front end seat (100) is less than 90 degrees; an adjusting member (300), the adjusting member (300) being mounted on the guiding member (200); When at least a portion of the guide member (200) extends out of the front end seat (100), the adjusting member (300) can be synchronously extended out of the front end seat (100) together with the guide member (200); and at least a portion of the distal opening (111) is located on the proximal side of the guide member (200) and is used for allowing the guide wire (600) to pass through; the adjusting member (300) can be deformed and / or moved toward the proximal side of the guide member (200) to push the guide wire (600) located on the proximal side of the guide member (200) to move; The regulating member (300) is an air bag structure, the regulating member (300) is connected to an air tube (400), the distal end of the air tube (400) is in communication with the regulating member (300), and the proximal end of the air tube (400) extends toward the endoscope handle (11) corresponding to the front end assembly, for connection to an air source.

2. A front end assembly according to claim 1, characterized in that: The front end seat (100) is provided with a mounting groove (120), the mounting groove (120) is arranged adjacent to the instrument channel (110), the mounting groove (120) is used to mount the guide member (200), and the opening of the mounting groove (120) is located at the circumferential side wall of the front end seat (100) and at the distal side of the distal opening (111).

3. A front end assembly according to claim 2, characterized in that: The mounting groove (120) extends from a circumferential side wall of the front end seat (100) toward the proximal end of the front end seat (100).

4. A front end assembly according to claim 3, characterized in that: From the proximal end to the distal end of the front end seat (100), the mounting groove (120) comprises a first extension section (121), a second extension section (122) and a third extension section (123) in sequence, wherein the first extension section (121) extends along the axial direction of the front end seat (100), the second extension section (122) is an arc-shaped structure, and the third extension section (123) extends along the radial direction of the front end seat (100).

5. A front end assembly according to claim 1, characterized in that: The end of the guide member (200) is connected to a pre-bent section (900); when at least a portion of the guide member (200) is located outside the front end seat (100), the pre-bent section (900) is located outside the front end seat (100), and the pre-bent section (900) is located on the distal side of the guide member (200); the surface of the pre-bent section (900) is used to press against the inner wall of the cavity.

6. A front end assembly according to claim 3, characterized in that: The front end assembly further comprises an elastic member (500) and a control rope, wherein the elastic member (500) is fixed between the front end seat (100) and the guide member (200), and when the guide member (200) does not extend out of the installation slot (120), the elastic member (500) is in a stretched state to drive the guide member (200) to move out of the installation slot (120); The proximal end of the control rope is fixed to the guide member (200), and the distal end of the control rope extends toward the endoscope handle (11) corresponding to the front end assembly. The control rope can controllably pull the guide member (200) to move within the mounting groove (120) to adjust the stretching length of the elastic member (500).

7. A front end assembly according to claim 6, characterized in that: The adjusting member (300) is an airbag structure, the adjusting member (300) is connected to a trachea (400), the distal end of the trachea (400) is in communication with the adjusting member (300), the proximal end of the trachea (400) extends toward an endoscope handle (11) corresponding to the front end seat (100), and the control rope is the trachea (400).

8. An insertion portion, characterized in that: Comprising the front end assembly according to any one of claims 1 to 7.

9. An endoscope (10), characterized in that: Comprising the insertion portion (12) as claimed in claim 8.

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