Front end assembly, insertion part and endoscope

Abstract

The invention discloses a front end assembly, an insertion part and an endoscope, and belongs to the technical field of endoscopes. The front-end assembly comprises a front-end seat, a guide piece and an adjusting piece, the front-end seat is provided with an instrument channel, and a far-end opening of the instrument channel is located in the circumferential side wall of the front-end seat; the guide piece is movably connected with the front end seat and can move relative to the front end seat, so that at least part of the guide piece moves out of the front end seat, and the included angle between the part, located outside the front end seat, of the guide piece and the radial direction of the front end seat is smaller than 90 degrees; the adjusting piece is mounted on the guide piece; under the condition that at least part of the guide piece extends out of the front end seat, the adjusting piece and the guide piece can synchronously extend out of the front end seat; at least part of the far-end opening is located in the near-end side of the guiding piece and used for a guide wire to penetrate through. The adjusting piece can deform and / or move towards the near end side of the guiding piece so as to push the guide wire located on the near end side of the guiding piece to move. The position of the guide wire is adjusted through the adjusting piece, and the adjusting precision of the end position of the guide wire is improved.

Description

Technical Field

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

[0002] An endoscope is a medical device that includes an insertion part with a front end seat at the distal end. A camera module is installed on the front end seat. The insertion part can enter the human body through the natural cavity of the human body or a surgical incision to provide doctors with sufficient diagnostic information to treat diseases.

[0003] During ERCP (endoscopic retrograde cholangiopancreatography), a guidewire must first be passed through the duodenal papilla into the common bile duct or pancreatic duct. However, due to the small hole of the duodenal papilla itself, it is difficult to pass the guidewire through the duodenal papilla in actual operation, and it is also easy to cause damage to the duodenal papilla and the inner wall of the nearby cavity, increasing the risk of surgery. Summary of the invention

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

[0005] This application is implemented as follows: In the first aspect, an embodiment of the present application provides a front end component, which is applied to an endoscope, and includes a front end seat, a guide 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 guide member is movably connected to the front end seat, and the guide member can move relative to the front end seat so that at least part of the guide member moves outside the front end seat, and the angle between the part of the guide member located outside the front end seat and the radial direction of the front end seat is less than 90 degrees; the adjusting member is installed on the guide member; when at least part of the guide member extends out of the front end seat, the adjusting member can be extended out of the front end seat synchronously with the guide member; and at least part of the distal opening is located on the proximal side of the guide member, and is used for the guide wire to pass through; the adjusting member can deform and / or move toward the proximal side of the guide member to promote the movement of the guide wire located on the proximal side of the guide member.

[0006] In a second aspect, an embodiment of the present application provides an insertion portion, comprising a front end assembly provided in the embodiment of the first aspect.

[0007] In a third aspect, an embodiment of the present application provides an endoscope, comprising the insertion portion provided by the embodiment of the second aspect.

[0008] The technical solution provided by this application can achieve the following beneficial effects: In the present application, a guide member is arranged to extend out of the front end seat, and at least part of the distal opening of the instrument channel is located on the proximal side of the guide member, so that the range of movement of the guide wire extending from the distal opening is limited to the proximal side of the guide member, and an adjusting member is arranged, which can deform and / or move toward the proximal side of the guide member, thereby pushing the guide wire located on the proximal side of the guide member to move and adjust the position of the guide wire; since the adjusting member is located outside the front end seat and is closer to the end of the guide wire, when the adjusting member pushes the guide wire to move, the distance moved by the end of the guide wire is shorter, 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 cavity near it, and reducing the risk of surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments 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.

[0010] Figure 1 is a schematic diagram of the overall structure of the front-end components provided in some embodiments of the present application; Figure 2 This is a schematic diagram of the cooperation between the front end assembly and the guide wire provided in some embodiments of the present application Figure 1 ; Figure 3 is a cross-sectional view of the cooperation structure of the front end assembly and the guide wire provided in some embodiments of the present application Figure 1 ; Figure 4 is a cross-sectional view of the cooperation structure of the front end assembly and the guide wire provided in some embodiments of the present application Figure 2 ; Figure 5 is a schematic diagram of the structure of a front end seat provided in some embodiments of the present application; Figure 6 This is a schematic diagram of the structure of the guide member provided in some embodiments of the present application. Figure 1 ; Figure 7 This is a schematic diagram of the structure of the guide member provided in some embodiments of the present application. Figure 2 ; Figure 8 This is a schematic diagram of the cooperation between the front end assembly and the guide wire provided in some embodiments of the present application Figure 2 ; Fig. 9 is a cross-sectional view of the cooperation structure of the front end assembly and the guide wire provided in some embodiments of the present application Figure 3 ; Fig.10 This is a schematic diagram of the structure of the guide member provided in some embodiments of the present application. Figure 3 ; Fig.11 This is a schematic diagram of the cooperation between the front end assembly and the guide wire provided in some embodiments of the present application Figure 3 ; Fig.12 is a cross-sectional view of the cooperation structure of the front end assembly and the guide wire provided in some embodiments of the present application Figure 4 ; Fig.13 This is a schematic diagram of the structure of the guide member provided in some embodiments of the present application. Figure 4 ; Fig.14 is a schematic diagram of the structure of an endoscope provided in some embodiments of the present application; Fig.15 This is a schematic diagram of the use of an endoscope provided in some embodiments of the present application.

[0011] 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 member, 300-adjustment member, 400-trachea, 500-elastic member, 600-guide wire, 700-connecting block, 800-camera module, 900-pre-bent section, 10-endoscope, 11-endoscope handle, 12-insertion part, 21-common bile duct, 22-common pancreatic duct, 23-duodenal papilla, 24-duodenum. DETAILED DESCRIPTION

[0012] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0013] In the specification and claims, "and / or" means at least one of the connected objects, and the character " / " generally means that the previously and subsequently associated objects are in an "or" relationship.

[0014] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the use environment, wherein 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".

[0015] During the ERCP operation, the instrument channel outlet 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 is bent inside the front end seat and then extends toward the instrument channel outlet located on the circumferential side wall of the front end seat. In the related art, a lifting forceps is generally arranged inside the front end seat of the insertion part. The lifting forceps contacts the part of the guide wire located inside the front end seat, and the lifting forceps 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.

[0016] The inventors have found that since the contact point between the forceps lifter and the guide wire is far away from the distal end of the guide wire, a small movement of the forceps lifter will also cause a large movement of the distal end of the guide wire. Therefore, the control accuracy of the forceps lifter over the distal position of the guide wire is low, making it difficult to align the guide wire with the duodenal papilla.

[0017] In view of this, an embodiment of the present application provides a front end assembly, which is applied to an endoscope 10. The front end assembly includes a front end seat 100, a guide member 200 and an adjustment member 300.

[0018] refer to Figures 1 to 5 As shown, the front end seat 100 has an instrument channel 110, and the distal opening 111 of the instrument channel 110 is located at the circumferential side wall of the front end seat 100, and the camera module 800 is also installed at 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 from the distal opening 111 located at the circumferential side wall of the front end seat 100, so that the guide wire 600 extends to the duodenal papilla 23. In addition to being used for the guide wire 600 to extend into, the instrument channel 110 of the front end seat 100 is also used for other instrument components required for use during the operation, such as catheters, etc.

[0019] The guide member 200 is movably connected to the front end seat 100, and 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 part of the guide member 200 can move to the front end seat 100, and the angle between the part of the guide member 200 located outside the front end seat 100 and the radial direction of the front end seat 100 is less than 90 degrees. Figure 8 , Fig. 9 , Fig.11 and Fig.12 The adjusting member 300 is mounted on the guide member 200, see Figure 6 , Figures 8 to 13 shown.

[0020] The angle between the guide member 200 located outside the front end seat 100 and the front end seat 100 is limited to ensure that when the guide member 200 moves toward the outside of the front end seat 100, the guide member 200 has a component located in the radial direction of the front end seat 100. In actual surgical operations, the guide member 200 can approach the duodenal papilla 23 corresponding to the side wall of the front end seat 100, so that the guide member 200 can be used to guide the guide wire 600.

[0021] In the case where at least part of the guide member 200 extends out of the front seat 100, the adjusting member 300 can be synchronously extended out of the front seat 100 with the guide member 200. In addition, at least 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. The embodiment of the present application has restrictions on the relative position of the guide member 200 and the distal opening 111, so that at least part of the distal opening 111 is located on the proximal side of the guide member 200, and the part of the distal opening 111 is used for the guide wire 600 to pass through, and the guide wire 600 extends from the part of the distal opening 111. The adjusting member 300 can deform and / or move 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.

[0022] The adjusting member 300 is located outside the front end seat 100, and the deformation and / or movement of the adjusting member 300 is used to push the guide wire 600 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 lifting forceps in the related art, the adjusting member 300 provided in the embodiment of the present application is located closer to the distal end of the guide wire 600, and a small movement of the adjusting member 300 does not cause a large movement of the distal end of the guide wire 600. The adjusting member 300 has a higher control accuracy on the distal end of the guide wire 600, and the distal end of the guide wire 600 is more easily aligned with the hole of the duodenal papilla 23, which reduces the difficulty of inserting the guide wire 600 into the duodenal papilla 23, reduces the probability of damage to the duodenal papilla 23 and the inner wall of the cavity near it, and reduces the risk of surgery.

[0023] The adjusting member 300 needs to extend out of the front end seat 100 together with the guide member 200, and the two cooperate to more accurately control the position of the guide wire 600. 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 control accuracy of the distal end of the guide wire 600.

[0024] The guide wire 600 extends from the front end seat 100, referring to Figure 3 and Figure 4As shown, the bending point of the guide wire 600 in the instrument channel 110 is close to the distal end of the front seat 100, and the guide wire 600 moves toward the outside of the front seat 100 close to the inner wall of the instrument channel 110 and the distal end of the front seat 100. Compared with the guide member 200 being located at the proximal side of the guide wire 600, the guide member 200 is arranged at the distal side of the guide wire 600, and the distance between the guide wire 600 and the guide member 200 is closer, which makes it easier for the adjusting member 300 to adjust the position of the guide wire 600. In addition, 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, and the guide member 200 and the adjusting member 300 are limited to be located at the distal side of the guide wire 600, ensuring that when the adjusting member 300 acts, the guide wire 600 can be smoothly pushed toward the inside of the instrument channel 110 to adjust the position.

[0025] In addition, the guide member 200 is located on the distal side of the guide wire 600, and the guide member 200 can also limit and guide the guide wire 600. Even if the guide wire 600 accidentally moves toward the distal direction of the front end seat 100 after extending out of the instrument channel 110, the guide member 200 is located on the moving path of the guide wire 600, preventing the guide wire 600 from continuing to move. After the guide wire 600 contacts the guide member 200, it can still move along the extension direction of the guide member 200 to smoothly reach the target position.

[0026] The guide member 200 can generally be selected to have a plate-like structure, which has a better limiting and guiding effect on the guide wire 600. At the same time, the adjustment member 300 also needs to be set wider to ensure that the adjustment member 300 can smoothly contact the guide wire 600 and adjust the position of the guide wire 600.

[0027] Since the present application is provided with a guide member 200 extending to the front end seat 100, the guide member 200 can be used to tightly fit with the inner wall of the cavity near the duodenal papilla 23, thereby limiting the position of the front end seat 100, so that the position of the front end seat 100 can be kept relatively stable, which is convenient for adjusting the guide wire 600. At the same time, the guide member 200 can also be used to relatively open the duodenal papilla 23 and the front end seat 100, thereby increasing the surgical operation space and facilitating subsequent surgical operations. The guide member 200 can be only partially extended to the front end seat 100, or it can be fully extended from the front end seat 100.

[0028] For the use of front-end components, please refer to Fig.15As shown, the endoscope 10 is inserted into the duodenum 24, and the guide member 200 extends from the front seat 100 and presses against the cavity wall around the duodenal papilla 23, stabilizing the position of the front seat 100 and providing a certain operating space. The common bile duct 21 and the common pancreatic duct 22 are connected to the duodenal papilla 23. Then the guide wire 600 is controlled to extend out of the front seat 100. When the distal end of the guide wire 600 moves around the duodenal papilla 23, the control regulating member 300 starts to deform and / or move. The regulating member 300 is located between the guide wire 600 and the guide member 200. After the regulating member 300 changes, it will push the guide wire 600 to move, so that the guide wire 600 can be aligned with the hole of the duodenal papilla 23.

[0029] 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, located inside the front end seat 100, and extending from the inside of the front end seat 100 toward the outside of the front end seat 100. In other embodiments, the guide member 200 can also be located at the distal end surface of the front end seat 100, slidingly cooperate with the distal end surface of the front end seat 100, and move outward from the distal end surface of the front end seat 100 along the radial direction of the front end seat 100.

[0030] The adjusting member 300 is installed on the guide member 200. After the guide member 200 extends out of the front end seat 100, the adjusting member 300 can also move synchronously with the guide member 200 to the outside of the front end seat 100. The closer the adjusting member 300 is to the end of the guide member 200, the farther the distance between the adjusting member 300 and the front end seat 100 is, and the higher the control accuracy of the guide wire 600 is. It should be noted that the synchronization of the adjusting member 300 and the guide member 200 moving synchronously to the outside of the front end seat 100 means that in the process of the guide member 200 moving toward the outside of the front end seat 100, the adjusting member 300 installed on the guide member 200 can also move to the outside of the front end seat 100 with the guide member 200. Synchronization refers to the synchronization of the movement action, which does not mean synchronization in time, and does not mean that the guide member 200 and the adjusting member 300 move to the outside of the front end seat 100 at the same time.

[0031] In some preferred embodiments, a groove may be provided on the guide member 200, and the adjusting member 300 may be installed in the groove, so that before the adjusting member 300 is deformed and / or moved, the surface of the adjusting member 300 may be flush with the surface of the guide member 200, thereby preventing the adjusting member 300 from protruding relative to the surface of the guide member 200 and affecting the movement of the guide wire 600 extending out of the instrument channel 110, and preventing the adjusting member 300 from obstructing the extension of the guide wire 600.

[0032] In some embodiments of the present application, reference Figures 1 to 5As shown, the front end seat 100 is provided with a mounting groove 120 , which is arranged adjacent to the instrument channel 110 , and is used to install 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 .

[0033] The guide member 200 is installed in the installation groove 120. The installation position of the installation groove 120 needs to be adapted to the guide member 200. Therefore, the opening of the installation groove 120 is set at the circumferential side wall of the front end seat 100, so that the guide member 200 can extend from the circumferential side wall of the front end seat 100, limit the extension direction of the guide member 200, and avoid the guide member 200 extending along the axial direction of the front end seat 100. In addition, the opening of the installation groove 120 is located at the distal end side of the distal opening 111, ensuring that the guide member 200 is located at the distal end side of the guide wire 600, which is convenient for the adjustment member 300 to adjust the position of the guide wire 600.

[0034] The installation groove 120 is provided to limit the position of the guide member 200, so as to prevent the guide member 200 from being located in the instrument channel 110 and affecting the normal use of the guide wire 600. At the same time, when the guide member 200 is not needed, the guide member 200 can be retracted into the installation groove 120, so as to prevent the existence of the guide member 200 from affecting the normal movement and use of the front end seat 100.

[0035] In some preferred embodiments of the present application, reference is made to Figures 3 to 5 As shown, the mounting groove 120 extends from the circumferential side wall of the front end seat 100 toward the proximal end of the front end seat 100. The mounting groove 120 extends roughly along the axial direction of the front end seat 100, and the guide member 200 located in the mounting groove 120 can move more smoothly. In addition, the mounting groove 120 extends toward the proximal end of the front end seat 100, and the mounting groove 120 can be set as long as possible, thereby increasing the length of the guide member 200 installed in the mounting groove 120. After the length of the guide member 200 is increased, the length of the guide member 200 that can extend out of the front end seat 100 is also increased, thereby adapting to different surgical conditions and improving the flexibility of the front end assembly.

[0036] Further preferably, reference Figure 5As shown, from the proximal end to the distal end of the front end seat 100, the mounting groove 120 includes a first extension section 121, a second extension section 122 and a third extension section 123 in sequence. The first extension section 121 extends along the axial direction of the front end seat 100, and the second extension section 122 is an arc-shaped structure, connecting the first extension section 121 and the third extension section 123. The third extension section 123 extends along the radial direction of the front end seat 100, and the opening of the mounting groove 120 is located in 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 end seat 100, so that the distance between the guide member 200 and the guide wire 600 can be as short as possible, which is more convenient for the adjustment member 300 to adjust the position of the guide wire 600.

[0037] In some embodiments, the guide member 200 is arranged straight, and when installed in the installation slot 120, the guide member 200 is restricted by the installation slot 120 and is forced to bend. When the guide member 200 extends out of the installation slot 120, it is restricted by the third extension section 123, and the portion of the guide member 200 located outside the installation slot 120 extends along the radial direction of the front end seat 100, which is more convenient for tight fit with the inner wall of the body cavity.

[0038] During the surgical operation, the distal end of the guide member 200 needs to be tightly matched with the inner wall of the human body cavity. In some embodiments of the present application, the end of the guide member 200 is connected to a pre-bent section 900. Figures 11 to 13 And when at least part of the guide member 200 is located outside the front seat 100, the pre-bent section 900 is located outside the front seat 100, and the pre-bent section 900 is located at the distal end of the guide member 200. The surface of the pre-bent section 900 is used to press against the inner wall of the cavity, increase the contact area between the guide member 200 and the inner wall of the body cavity, reduce the force per unit area of ​​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.

[0039] 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 mounting groove 120, the pre-bent section 900 can also be received in the mounting groove 120, and the pre-bent section 900 is restricted by the groove wall of the mounting groove 120 to avoid being exposed to the front end seat 100 and affecting the normal movement of the front end seat 100 in the body cavity. After the pre-bent section 900 extends out of the mounting groove 120, the pre-bent section 900 can be bent normally. The guide member 200 and the pre-bent section 900 can be an integrally molded structure. The bending angle of the pre-bent section 900 is preferably greater than or equal to 120 degrees to avoid the end of the pre-bent section 900 from pressing against the inner wall of the body cavity.

[0040] In some embodiments of the present application, the adjusting member 300 is an airbag structure, the adjusting member 300 is connected to the trachea 400, the distal end of the trachea 400 is connected to the adjusting member 300, and the proximal end of the trachea 400 extends toward the endoscope handle 11 corresponding to the front end component for connecting to the gas source.

[0041] In the structure of the endoscope 10, the front seat 100 is located at the distal end of the insertion part 12, and the proximal end of the insertion part 12 is connected to the endoscope handle 11. The proximal end of the trachea 400 extends to the endoscope handle 11, which is convenient for connecting to the gas source to inflate the adjustment member 300.

[0042] Before the adjustment member 300 is inflated, please refer to Figure 6 and Figure 7 After the adjusting member 300 is inflated, Figures 8 to 13 As shown, the adjusting member 300 is inflated to push the guide wire 600 to move and adjust the position of the guide wire 600 .

[0043] In other embodiments, the adjusting member 300 may be movably connected to the guide member 200, and the position of the guide wire 600 may be adjusted by the movement of the adjusting member 300. For example, the guide member 200 is electromagnetically driven or electrically driven.

[0044] The guide member 200 is movably connected to the front seat 100, and in some embodiments, it can be directly driven by electricity. In other embodiments of the present application, the position of the guide member 200 can be controlled by using a combination structure of an elastic member 500 and a control rope.

[0045] refer to Figure 4 , Fig. 9 ,as well as Fig.12 As shown, the front end assembly also includes an elastic member 500 and a control rope. The elastic member 500 is fixed between the front end seat 100 and the guide member 200. When the guide member 200 does not extend out of the installation slot 120, the elastic member 500 is in a stretched state. The elastic member 500 in the stretched state is used to drive the guide member 200 to move outside the installation slot 120.

[0046] 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, so that the operator can control the control rope. The control rope is fixed to the guide member 200, and the guide member 200 can be driven to move in the installation groove 120 by pulling the control rope. At the same time, since the guide member 200 is also connected to the elastic member 500, the change in the position of the guide member 200 will cause the length of the elastic member 500 to change.

[0047] The operator pulls the control rope to control the guide member 200 to move toward the endoscope handle 11 , and releases the control rope, so that the guide member 200 moves toward the outside of the installation slot 120 under the drive of the elastic member 500 .

[0048] refer to Figure 6 and Figure 7 As shown in FIG. 1 , when the guide member 200 does not extend out of the mounting slot 120 , the elastic member 500 is in a stretched state. Fig.10 , Fig.12 and Fig.13 As shown, when the guide member 200 extends out of the mounting groove 120, the length of the elastic member 500 is reduced and the stretching degree is weakened.

[0049] 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 seat 100 is further provided with an assembly groove 130, which is connected to the installation groove 120. Figure 5 As shown. A portion of the elastic member 500 is installed in the assembly groove 130, and the other portion extends to the installation groove 120 and is connected to the guide member 200. The assembly groove 130 is provided to provide sufficient installation space for the elastic member 500, and a longer elastic member 500 can be installed accordingly, providing more sufficient driving force for the guide member 200.

[0050] In some preferred embodiments, when the adjusting member 300 is an airbag structure, the adjusting member 300 is connected to the trachea 400, the distal end of the trachea 400 is connected to the adjusting member 300, and the proximal end of the trachea 400 extends toward the endoscope handle 11 corresponding to the front end seat 100, the control rope is the trachea 400, and the trachea 400 is directly used as the control rope to drive the guide member 200 to move, thereby simplifying the structure of the front end component.

[0051] 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 trachea 400 from being disconnected from the connection between the two, the connection between the airbag and the two can be fixed with additional glue. Figure 6 and Figure 7 As shown, the connecting block 700 is used to simultaneously connect the guide member 200, the air pipe 400 and the elastic member 500 to ensure that when the air pipe 400 is used to pull the guide member 200 to move, the elastic member 500 can be synchronously extended and retracted.

[0052] The present application also provides an insertion portion 12, including a front end assembly provided in any of the above embodiments. Fig.14 As shown, the front end seat 100 of the front end assembly is located at the most distal end of the insertion portion 12 .

[0053] The present application also provides an endoscope 10, including the insertion portion 12 provided in the above embodiment. Fig.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 .

[0054] The endoscope 10 provided in the embodiment of the present application may be a bile and pancreatic endoscope 10, or may be a nephroscope, bronchoscope, esophagoscope, gastroscope, colonoscope, otoscope, rhinoscope, stomatoscope, laryngoscope, colposcope, laparoscope, arthroscope, or the like, which requires adjustment of the position of the extending parts. The embodiment of the present application does not impose any specific limitation on the type of the endoscope 10.

[0055] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0056] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by 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) is extended out of the front end seat (100), the adjusting member (300) can be extended out of the front end seat (100) synchronously 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.

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 1, characterized in that: 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.

7. 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).

8. A front end assembly according to claim 7, 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).

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

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

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