A traction rope mounting structure, an endoscope handle, and an endoscope.

Abstract

This invention provides a traction rope mounting structure, an endoscope handle, and an endoscope, belonging to the field of endoscope technology. The mounting structure includes a traction wheel, a brake, and an elastic element. The traction wheel has a first mounting channel and a second mounting channel that are connected. The first mounting channel is used to thread the traction rope through. The brake is movably disposed in the second mounting channel, with a portion of the brake protruding from the traction wheel. The elastic element has its two ends connected to the traction wheel and the brake, respectively. The elastic element is configured to apply a preload to the brake to secure the traction rope, which extends into the second mounting channel, between the brake and the inner wall of the traction wheel. This application simplifies the connection structure between the traction rope and the traction wheel by threading the traction rope through the first mounting channel and applying a preload to the brake using the elastic element to secure the traction rope between the brake and the inner wall of the traction wheel. This simplifies the installation process and improves the ease of installation.

Description

Technical Field

[0001] This invention belongs to the field of endoscope technology, specifically relating to a traction rope installation structure, an endoscope handle, and an endoscope. Background Technology

[0002] Endoscopes are widely used in modern medicine. In practice, the insertion part of the endoscope is inserted into the human body. The distal end of the insertion part is the active bending section, which is connected to a traction rope. By pulling the traction rope, the active bending section bends, thereby controlling the bending direction of the active bending section and acquiring image information of the target location.

[0003] The endoscope handle is equipped with a traction wheel, which is fixed to the traction rope. By controlling the rotation of the traction wheel, the length of the traction rope between the active bending section and the traction wheel can be adjusted, thereby controlling the bending angle of the active bending section.

[0004] In related technologies, when installing the traction rope and traction wheel, the traction rope is usually tied to the corresponding fixed structure first, and then the fixed structure is installed in the traction wheel. The whole installation process is relatively complicated and cumbersome, which leads to a reduction in the assembly efficiency of the endoscope. Summary of the Invention

[0005] The purpose of this application is to provide a traction rope mounting structure, an endoscope handle, and an endoscope to solve the aforementioned technical problems existing in the prior art.

[0006] This application is implemented as follows:

[0007] In a first aspect, this application provides a traction rope mounting structure for use in an endoscope, comprising a traction wheel, a brake, and an elastic element, wherein: the traction wheel has a first mounting channel and a second mounting channel that are connected to each other, the first mounting channel is used to pass through the traction rope, the brake is movably disposed in the second mounting channel, and a portion of the brake is exposed outside the traction wheel; the two ends of the elastic element are respectively connected to the traction wheel and the brake, and the elastic element is configured to apply a preload to the brake to press and fix the traction rope extending into the second mounting channel between the brake and the inner wall of the traction wheel.

[0008] Secondly, this application provides an endoscope handle, including the traction rope mounting structure provided in the first aspect.

[0009] Thirdly, this application provides an endoscope including the endoscope handle provided in the second aspect.

[0010] The technical solution adopted in this invention can achieve the following beneficial effects:

[0011] In this application, since the second mounting channel is connected to the first mounting channel, after the traction rope extends into the first mounting channel, part of the traction rope is also located in the second mounting channel. The brake is movably disposed in the second mounting channel. After the elastic element applies a preload to the brake, the brake moves in the second mounting channel to press and fix the traction rope extending into the second mounting channel against the inner wall of the traction wheel. During the process of inserting the traction rope into the first mounting channel of the traction wheel, the brake can be pressed and fixed against the traction wheel, simplifying the connection structure between the traction rope and the traction wheel, thereby simplifying the installation process and improving the ease of installation. Furthermore, by using the elastic element as a component to provide preload to the brake, it is easier for the brake to overcome the preload provided by the elastic element during the installation of the traction rope, thus inserting the traction rope between the brake and the inner wall of the traction wheel. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram illustrating the cooperation between the traction rope mounting structure and the traction rope provided in some embodiments of this application. Figure 1 ;

[0014] Figure 2 This is a cross-sectional view of a traction rope mounting structure provided in some embodiments of this application, with a traction rope installed. Figure 1 ;

[0015] Figure 3 yes Figure 2 The braking component shown in the image is a detail view at point A of one of the preferred structures;

[0016] Figure 4 yes Figure 2 The braking component shown in the diagram is a detail view at point A of another preferred structure;

[0017] Figure 5 yes Figure 2 The braking component shown in the diagram is a detail view of point A in the third preferred structure.

[0018] Figure 6 This is a cross-sectional view of a traction rope mounting structure provided in some embodiments of this application;

[0019] Figure 7 yes Figure 6 Detailed image of point B in the image;

[0020] Figure 8This is a cross-sectional view of a traction wheel provided in some embodiments of this application;

[0021] Figure 9 These are schematic diagrams of the traction wheel provided in some embodiments of this application;

[0022] Figure 10 These are schematic diagrams of the fasteners provided in some embodiments of this application;

[0023] Figure 11 This is a schematic diagram illustrating the cooperation between the traction rope mounting structure and the traction rope provided in some embodiments of this application. Figure 2 ;

[0024] Figure 12 This is a schematic diagram illustrating the cooperation between the traction rope mounting structure and the traction rope provided in some embodiments of this application. Figure 3 ;

[0025] Figure 13 This is a cross-sectional view of a traction rope mounting structure provided in some embodiments of this application, with a traction rope installed. Figure 2 .

[0026] In the diagram: 100-traction wheel, 110-second mounting hole, 111-supporting protrusion, 120-first mounting hole, 121-first hole section, 122-second hole section, 123-guide surface, 131-first end face, 132-second end face, 200-brake component, 210-wire hole, 220-pressure part, 300-elastic component, 310-first end, 400-rotating shaft, 500-sleeve, 510-notch, 600-mounting seat, 700-traction rope. Detailed Implementation

[0027] The following description provides many different embodiments or examples for implementing various features of the invention. The elements and arrangements described in the specific examples below are only for concise expression of the invention and are merely examples, not intended to limit the invention.

[0028] It should be noted that in the various embodiments of this application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the usage environment. 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".

[0029] Some embodiments of this application provide a traction rope mounting structure for use in endoscopes, which simplifies the installation steps of the traction rope 700 and improves the assembly efficiency of the traction rope 700.

[0030] Please refer to Figures 1 to 13The installation structure disclosed in this application includes a traction wheel 100, a braking element 200, and an elastic element 300. The traction wheel 100 is installed in the endoscope handle and is used to fix the traction rope 700. To fix the traction rope 700, the traction wheel 100 has a first mounting channel 120 and a second mounting channel 110 that are interconnected. The first mounting channel 120 is used to install the traction rope 700. The traction rope 700 extends from the outside of the traction wheel 100 into the first mounting channel 120. Since the first mounting channel 120 and the second mounting channel 110 are interconnected, when the traction rope 700 extends into the first mounting channel 120, it can also be considered that the traction rope 700 located at the intersection cavity of the first mounting channel 120 and the second mounting channel 110 is also located in the second mounting channel 110.

[0031] The brake element 200 is used to secure and tighten the traction rope 700. The brake element 200 is movably disposed within the second mounting channel 110, and can move within the second mounting channel 110 to the cavity where the second mounting channel 110 and the first mounting channel 120 intersect, contacting the traction rope 700 located in this cavity. Furthermore, a portion of the brake element 200 is exposed outside the traction wheel 100. This exposure can mean that a portion of the brake element 200 is located outside the second mounting channel 110, thus exposed outside the traction wheel 100, or that a portion of the brake element 200 can be observed through the opening of the second mounting channel 110 in the external environment.

[0032] The elastic element 300 is the main force-applying component. The elastic element 300 connects the traction wheel 100 and the brake element 200. One end of the elastic element 300 is connected to the traction wheel 100, and the other end is connected to the brake element 200. When the brake element 200 compresses or stretches the elastic element 300, the elastic element 300 can apply a preload to the brake element 200, causing the brake element 200 to tend to move in the direction of the preload. After being subjected to the preload applied by the elastic element 300, the brake element 200 will move in the direction of the preload, thereby securing the traction rope 700, which extends into the second mounting hole 110, between the brake element 200 and the inner wall of the traction wheel 100. The traction rope 700 extending into the second mounting hole 110 refers to the traction rope 700 located at the intersection of the first mounting hole 120 and the second mounting hole. The inner wall of the traction wheel 100 can be the inner wall of the first mounting channel 120 or the inner wall of the second mounting channel 110.

[0033] In some embodiments of this application, the traction rope 700 is abutted between the end face of the brake member 200 and the inner wall of the second mounting channel 110. The brake member 200 is disposed in the second mounting channel 110 and can move along the axial direction of the second mounting channel 110. The elastic member 300 is installed at the end of the brake member 200 away from the first mounting channel 120, as can be seen from... Figure 4 As shown. When the elastic element 300 is in a compressed state, the elastic element 300 drives the brake element 200 to move toward the side where the first mounting channel 120 is located. When the traction rope 700 extends into the first mounting channel 120, the brake element 200, driven directly by the elastic element 300, presses and fixes the traction rope 700 between the end face of the brake element 200 and the inner wall of the second mounting channel 110.

[0034] During the process of extending the traction rope 700 into the first mounting channel 120, the position of the brake element 200 in the second mounting channel 110 is controlled by the portion of the brake element 200 exposed on the traction wheel 100. This leaves the junction of the second mounting channel 110 and the first mounting channel 120 unoccupied, facilitating the insertion of the traction rope 700 into this portion of the channel. In some embodiments of this application, the end face of the brake element 200 connected to the elastic element 300 may be exposed on the traction wheel 100, and a pull ring may be fixed to the end face of the brake element 200. The user can control the position of the brake element 200 in the second mounting channel 110 by using the pull ring. It should be noted that when a pull ring is used, it is necessary to avoid the pull ring affecting the elastic element 300.

[0035] In some other embodiments of this application, the end face of the brake member 200 that abuts against the traction rope 700 may be exposed outside the traction wheel 100. A pressing structure is provided on the end face of the brake member 200, and the position of the brake member 200 in the second mounting channel 110 is controlled by pressing the brake member 200. It should be noted that when the pressing structure is provided, the pressing structure should not affect the abutting effect of the brake member 200 against the traction rope 700.

[0036] During the installation of the traction rope 700 to the mounting structure provided in this embodiment, the position of the brake member 200 is controlled, and a channel for the traction rope 700 to pass through is reserved. After the traction rope 700 is placed, the control of the brake member 200 can be released, so that the brake member 200 can press the traction rope 700 against the inner wall of the traction wheel 100 under the drive of the elastic member 300. Compared with the prior art, the processing of the traction rope 700 is less in the entire installation process. It is only necessary to place the traction rope 700 into the first mounting channel 120, which simplifies the installation steps of the traction rope 700 and improves the assembly efficiency of the traction rope 700. Furthermore, in this application, the elastic element 300 is selected as the component that provides pre-tension force to the brake element 200. During the installation of the traction rope 700, it is easier to control the brake element 200 to move against the pre-tension force of the elastic element 300, leaving a channel space for the traction rope 700 to pass through. This facilitates the traction rope 700 to extend into the first mounting channel 120 and the junction of the first mounting channel 120 and the second mounting channel 110, further improving the convenience of installing the traction rope 700.

[0037] During use, the traction wheel 100 is moved to control the bending of the active bending section via the traction rope 700. The traction rope 700 experiences significant force during this process. One end of the traction rope 700 is fixed to the traction wheel 100, while the other end pulls the active bending section to bend. Therefore, to ensure the stability of the traction rope 700 and its proper function, the fixing structure between the traction rope 700 and the traction wheel 100 must be stable to ensure that the traction rope 700 will not detach from the traction wheel 100 even under significant force.

[0038] When the traction wheel 100 is fixed to the traction rope 700, the entrance to the first mounting channel 120 is generally located on the circumferential side wall of the traction wheel 100. The circumferential side wall of the traction wheel 100 also has a wire groove. (Refer to...) Figure 9 As shown, the traction rope 700 is placed in the groove and arranged around the circumference of the traction wheel 100 so that the length of the traction rope 700 connected to the traction wheel 100 can be controlled by the rotation of the traction wheel 100, thereby controlling the length of the traction rope 700 between the traction wheel 100 and the active bending section, and thus controlling the bending angle of the active bending section.

[0039] The two traction ropes 700 can be secured by a brake element 200, for reference. Figure 1 As shown. In other embodiments, the two traction ropes 700 are set separately, with one traction rope 700 corresponding to one brake element 200 for fixing, as can be seen from... Figure 12 and Figure 13 As shown.

[0040] In some embodiments provided in this application, the opening of the second mounting channel 110 is disposed on the surface of the traction wheel 100, one end of the brake member 200 is connected to the elastic member 300, and the other end passes through the opening of the second mounting channel 110 and is located outside the traction wheel 100, as can be seen from [reference]. Figure 1 and Figure 2 As shown. The brake element 200 has a cable passage hole 210 for the traction rope 700 to pass through. When the brake element 200 is installed in the second mounting channel 110, the cable passage hole 210 can be located at the intersection of the second mounting channel 110 and the first mounting channel 120, so that the cable passage hole 210 corresponds to the first mounting channel 120 and communicates to form a cavity for the traction rope 700 to pass through. (See reference...) Figure 6 and Figure 7 As shown. The portion of the brake 200 located outside the traction wheel 100 can serve as a pressing structure. By pressing this portion of the brake 200, the user can push the brake 200 to move within the second mounting channel 110, thereby aligning the cable hole 210 with the first mounting channel 120, facilitating the insertion of the traction rope 700.

[0041] The installation structure provided in this application embodiment, in addition to using the end face of the brake member 200 to abut against the traction rope 700, can also use the circumferential sidewall of the brake member 200 to abut against the traction rope 700. For example, refer to... Figure 5 As shown, the radial dimension of the opening of the second mounting channel 110 is larger than the radial dimension of the brake member 200. Driven by the elastic member 300, the brake member 200 can pass through the opening of the second mounting channel 110 and move outwards towards the traction wheel 100. During the movement of the brake member 200 outwards towards the traction wheel 100, the wire hole 210 and the first mounting channel 120 begin to misalign. The portion of the traction rope 700 located in the first mounting channel 120 and the portion of the traction rope 700 located in the wire hole 210 begin to misalign. The misaligned traction rope 700 is squeezed between the circumferential sidewall of the brake member 200 and the cavity wall of the second mounting channel 110 until the brake member 200 can no longer squeeze the traction rope 700 under the preload of the elastic member 300. The brake member 200 then stops moving, completing the clamping and fixing of the traction rope 700.

[0042] In some embodiments of this application, a pressing portion 220 may be provided on the circumferential sidewall of the brake member 200 to prevent the brake member 200 from moving under the drive of the elastic member 300. See also... Figure 3 and Figure 10As shown, the pressing part 220 is located on the circumferential sidewall of the brake member 200, protruding from the circumferential sidewall of the brake member 200. The pressing part 220 is located on the side of the brake member 200 near the elastic member 300. Specifically, the pressing part 220 is distributed on the side of the wire hole 210 near the elastic member 300, so that the pressing part 220 can press against the elastic member 300. The projection of the pressing part 220 along the axial direction of the second mounting channel 110 overlaps with the cavity wall located at the opening edge of the second mounting channel 110. That is, the radial dimension of the opening of the second mounting channel 110 is smaller than the radial dimension of the pressing part 220, so that the projection of the pressing part 220 along the axial direction of the second mounting channel 110 can overlap with the cavity wall at the opening edge of the second mounting channel 110. Driven by the elastic member 300, the brake member 200 moves the pressing part 220 toward the opening of the second mounting channel 110. Since the pressing part 220 cannot pass through the opening of the second mounting channel 110, the pressing part 220 is stopped against the edge of the opening of the second mounting channel 110. Since the traction rope 700 is located in the wire hole 210, the traction rope 700 can be pressed and fixed between the pressing part 220 and the cavity wall of the opening edge of the second mounting channel 110.

[0043] The cavity wall at the opening edge of the second mounting channel 110 can be considered as the portion of the bottom wall of the second mounting channel 110 in its axial direction, for reference. Figure 3 As shown, because the radial dimension of the pressing part 220 is different from that of the brake member 200, in order to satisfy the requirement that the pressing part can slide in the second mounting channel 110 and the pressing part 220 cannot slide out of the traction wheel 100, the cavity wall of the second mounting channel 110 needs to have a stepped structure, so that the second mounting channel 110 and the pressing part 220 can be fitted together. Alternatively, it can be considered as part of the cavity wall of the first mounting channel 120. Since the second mounting channel 110 and the first mounting channel 120 are connected, the stepped structure of the second mounting channel 110 can be combined with the first mounting channel 120, which can reduce the processing technology of the second mounting channel 110. (See reference...) Figure 3 As shown.

[0044] The pressing part 220 can be a component protruding from the circumferential sidewall of the brake member 200. A groove can be provided at the other end of the brake member 200 to accommodate the elastic member 300, saving installation space. If the size of the elastic member 300 is too large, the corresponding groove size on the brake member 200 also needs to be increased. In some embodiments, the radial dimension of the groove can be larger than the radial dimension of the brake member 200, so that the pressing part fixed to the circumferential sidewall of the brake member 200 surrounds and forms a groove to accommodate the elastic member.

[0045] In some other embodiments of this application, the pressing part 220 fixed on the brake member 200 can be directly distributed in the first mounting channel 120. The pressing part 220 is located on the side of the wire hole 210 close to the brake member 200. The pressing part 220 is always moving in the first mounting channel 120. Under the pre-tightening force of the elastic member 300, the traction rope 700 located in the wire hole 210 can be pressed and fixed against the cavity wall of the first mounting channel 120.

[0046] In this application, the cavity wall of the second mounting channel 110 is fixed with two supporting protrusions 111. The two supporting protrusions 111 are arranged along the circumferential direction of the first mounting channel 120, and also along the radial direction of the second mounting channel 110, so that the surface of the supporting protrusions 111 away from the second mounting channel 110 abuts against the circumferential sidewall of the brake member 200. In specific implementation, in order to facilitate the assembly of the brake member 200 and to facilitate the movement control of the position of the brake member 200, an assembly gap is provided between the brake member 200 and the cavity wall of the second mounting channel 110. When the traction rope 700 is pressed against the brake element 200, and the traction wheel 100 is driven to rotate to adjust the bending angle of the active bending section, the traction rope 700 is in a taut state. The taut traction rope 700 may cause the brake element 200 to move radially along the second mounting channel 110 to eliminate the assembly gap between the brake element 200 and the cavity wall of the second mounting channel 110. However, due to the presence of the support protrusion 111, the brake element 200 cannot move radially along the second mounting channel 110, and its position will not change under the drive of the traction rope 700. Therefore, the fixing effect between the brake element 200 and the traction rope 700 will not change. If the traction rope 700 causes the brake element 200 to move, eliminating the assembly gap between the brake element 200 and the second mounting channel 110, it will affect the length of the traction rope 700 between the traction wheel 100 and the active bending section, thereby affecting the bending control accuracy of the active bending section and the use of the endoscope.

[0047] The supporting convex surface 111 can be a raised structural component, and its surface in contact with the brake component 200 is convex. This not only secures and positions the brake component 200 but also avoids generating significant resistance that could affect its movement. In some other embodiments of this application, the number of supporting convex surfaces 111 can be greater than two, and they are distributed circumferentially along the second mounting channel 110, limiting the movement of the brake component 200 in multiple directions.

[0048] When the brake element 200 is located outside the traction wheel 100, a sleeve 500 can be fitted over this portion of the brake element 200. The sleeve 500 is fixedly mounted to the surface of the traction wheel 100, thereby improving the coaxiality between the brake element 200 and the second mounting channel 110. The assembly clearance between the sleeve 500 and the brake element 200 is smaller than the assembly clearance between the brake element 200 and the second mounting channel 110. Simultaneously, a notch 510 is provided on the sleeve 500, extending along the circumferential direction of the sleeve 500. (See reference...) Figure 11 As shown. The notch 510 allows the sleeve 500 to have a certain deformation allowance. When the elastic element 300 drives the brake element 200 to move, the preload generated by the elastic element 300 may not be entirely along the axial direction of the second mounting channel 110, and some deviation may occur. After the preload deviates, it will cause a large frictional force between the brake element 200 and the sleeve 500. With the notch 510, the sleeve 500 can undergo adaptive deformation to reduce the collision between the brake element 200 and the sleeve 500, avoid damage to the brake element 200, and improve the service life of the brake element 200.

[0049] In some embodiments of this application, the elastic element 300 can be a spring structure. Since the spring structure is formed by a spiral wound filament, the two ends of the elastic element 300 cannot completely conform to the traction wheel 100 or the brake element 200. During the process of the elastic element 300 driving the brake element 200 to move, the generated preload will deviate relative to the axial direction of the second mounting hole 110. This results in an uneven fixing effect of the brake element 200 on the traction rope 700 when it is tightened and fixed, increasing the risk of the traction rope 700 detaching from the brake element 200 and the inner wall of the traction wheel 100. Therefore, a boss can be provided on the inner wall of the traction wheel 100, defining the end of the spring structure fixed to the traction wheel 100 as the first end 310. The boss and the first end 310 are arranged radially along the second mounting hole 110. The boss abuts against the circumferential sidewall of the brake 200 so that there is no gap between the boss and the brake 200. Even if the elastic member 300 causes the brake 200 to shift, the brake 200 cannot shift due to the restriction of the boss, so that the brake 200 is as coaxial as possible with the second mounting hole 110 and evenly abuts against the traction rope 700.

[0050] The first mounting channel 120 can be divided into two parts by the second mounting channel 110, namely the first hole section 121 and the second hole section 122, as shown in the reference. Figure 8As shown. The first hole 121 is used to insert the traction rope 700, and the second hole 122 is used to exit the traction rope 700. The traction rope 700 enters the traction wheel 100 through the first hole 121, passes through the first hole 121, the second mounting channel 110, and the second hole 122 in sequence, and then exits from the second hole 122. If the brake component 200 is provided with a wire-passing hole 210, the traction rope 700 passes through the first hole 121, the wire-passing hole 210, and the second hole 122 in sequence, and then exits from the second hole 122.

[0051] In some embodiments of this application, the opening of the first hole segment 121 can be located on the circumferential sidewall of the traction wheel 100. To save the length of the traction rope 700 and reduce the difficulty of threading the traction rope 700, the opening of the second hole segment 122 is located on the axial end face of the traction wheel 100. A guide portion is provided in the second hole segment 122, and the guide portion has a guide surface 123 that facilitates the bending of the traction rope 700, so that the traction rope 700 can bend smoothly after touching the guide surface 123 and pass through the opening of the second hole segment 122. Preferably, the guide surface 123 is an arc surface, which reduces the difficulty of bending the traction rope 700 and speeds up the threading of the traction rope 700.

[0052] The traction wheel 100 has two axial surfaces: a first end face 131 and a second end face 132. The traction wheel 100 is connected to a rotating shaft 400, and the rotation of the traction wheel 100 is controlled by controlling the rotation of the rotating shaft 400. A mounting hole is located at the center of the traction wheel 100. The rotating shaft 400 has different lengths on both sides of the traction wheel 100. The length of the portion of the rotating shaft 400 protruding from the first end face 131 is greater than the length of the portion protruding from the second end face 132. The opening of the second hole section 122 needs to be located on the first end face 131.

[0053] When assembling the endoscope handle, the handle housing is divided into two parts: one side has a shallower internal assembly space, and the other side has a deeper internal assembly space. The shallower side of the housing serves as the mounting base. After the accessories in the handle are installed, the other side of the housing is simply closed. When the traction wheel 100 is installed on the endoscope handle, the shorter side of the shaft 400 is fixed to the handle housing, while the longer side of the shaft 400 is exposed. That is, the first end face 131 of the traction wheel 100 is located on the outside of the handle housing, and the second end face 132 is located on the inside of the handle housing. The opening of the second hole section 122 is located on the first end face 131, which facilitates the operator's observation of the traction rope 700 passing through, providing convenience for threading the traction rope 700.

[0054] The mounting structure also includes a mounting base 600, which is detachably connected to the traction wheel 100. The mounting base 600 is fixed to the second end face 132, and the opening of the second mounting channel 110 is located on the first end face 131. The elastic element 300 is fixed between the mounting base 600 and the braking element 200. The mounting base 600 can be considered as part of the traction wheel 100. A portion of the mounting base 600 is inserted into the second mounting channel 110, and the circumferential sidewall of the mounting base 600 is fixed to the cavity wall of the second mounting channel 110. (See reference...) Figure 3 As shown. The mounting base 600 can also be directly fixed to the surface of the traction wheel 100. The mounting base 600 is provided with a groove to accommodate the elastic element 300. The opening of the second mounting channel 110 is provided on the first end face 131 to facilitate the user to press the brake element 200.

[0055] Some embodiments of this application also provide an endoscope handle, including the traction rope 700 mounting structure provided in any of the above embodiments.

[0056] Some embodiments of this application also provide an endoscope, including the endoscope handle provided in the above embodiments. The endoscopes in the embodiments of this application can be bronchoscopes, pyeloscopes, esophagoscopes, gastroscopes, colonoscopes, otoscopes, rhinoscopes, oral endoscopes, laryngoscopes, colposcopes, laparoscopes, arthroscopes, etc., and the embodiments of this application do not specifically limit the type of endoscope.

[0057] 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 within the protection scope of the present invention.

Claims

1. A traction rope installation structure for use in endoscopes, characterized in that, It includes a traction wheel (100), a braking component (200), and an elastic component (300), wherein: The traction wheel (100) has a first mounting channel (120) and a second mounting channel (110) that are connected to each other. The first mounting channel (120) is used to pass through the traction rope (700). The brake (200) is movably disposed in the second mounting channel (110), and part of the brake (200) is exposed outside the traction wheel (100). The elastic element (300) is connected to the traction wheel (100) and the brake element (200) at both ends respectively. The elastic element (300) is configured to apply a preload to the brake element (200) to press and fix the traction rope (700) extending into the second mounting hole (110) between the brake element (200) and the inner wall of the traction wheel (100). The cavity wall of the second mounting channel (110) is fixed with two supporting protrusions (111). The two supporting protrusions (111) are arranged along the axial direction of the first mounting channel (120) and along the radial direction of the second mounting channel (110). The surface of the supporting protrusions (111) away from the second mounting channel (110) abuts against the circumferential sidewall of the brake member (200). The mounting structure further includes a sleeve (500), which is fixedly disposed on the surface of the traction wheel (100). The portion of the brake element (200) located outside the second mounting hole (110) is movably disposed in the sleeve (500). The sleeve (500) has a notch (510), which extends along the axial direction of the sleeve (500).

2. The traction rope installation structure according to claim 1, characterized in that, The opening of the second mounting channel (110) is located on the surface of the traction wheel (100). One end of the brake member (200) is connected to the elastic member (300), and the other end passes through the opening of the second mounting channel (110) and is located outside the traction wheel (100). The brake member (200) is provided with a wire hole (210), which communicates with the first mounting channel (120) to form a cavity for the traction rope (700) to pass through. The radial dimension of the opening of the second mounting channel (110) is greater than the radial dimension of the brake (200).

3. The traction rope installation structure according to claim 2, characterized in that, The circumferential sidewall of the brake member (200) is provided with a pressing part (220). The pressing part (220) is distributed on the side of the wire hole (210) near the elastic member (300). The projection of the pressing part (220) along the axial direction of the second mounting channel (110) overlaps with the cavity wall located at the opening edge of the second mounting channel (110), so that the pressing part (220) can, under the drive of the elastic member (300), press and fix the traction rope (700) located in the second mounting channel (110) against the cavity wall of the second mounting channel (110).

4. The traction rope installation structure according to claim 2, characterized in that, The circumferential sidewall of the brake component (200) is provided with a pressing part (220), which is distributed in the first mounting channel (120).

5. A traction rope installation structure according to any one of claims 1-4, characterized in that, The mounting structure also includes a boss, which is fixed to the inner wall of the traction wheel (100). The elastic element (300) is a spring structure, and the end of the spring structure that is fixed to the traction wheel (100) is the first end (310). The boss and the first end (310) are arranged radially along the second mounting hole (110).

6. A traction rope installation structure according to any one of claims 1-4, characterized in that, The first mounting channel (120) includes a first segment (121) and a second segment (122) separated by the second mounting channel (110). The first segment (121) is for inserting the traction rope (700), and the second segment (122) is for exiting the traction rope (700). The second segment (122) has a guide portion, which is provided with a guide surface (123) that facilitates the bending of the traction rope (700).

7. The traction rope installation structure according to claim 6, characterized in that, One side surface of the traction wheel (100) on the axial direction is a first end face (131), and the other side surface is a second end face (132). The traction wheel (100) is connected to a rotating shaft (400). The length of the portion of the rotating shaft (400) protruding from the first end face (131) is greater than the length of the portion of the rotating shaft (400) protruding from the second end face (132). The outlet of the second hole section (122) is opened on the first end face (131).

8. The traction rope installation structure according to claim 7, characterized in that, The guide surface (123) is an arc surface.

9. A traction rope installation structure according to any one of claims 2-4, characterized in that, One side surface of the traction wheel (100) on the axial direction is a first end face (131), and the other side surface is a second end face (132). The traction wheel (100) is connected to a rotating shaft (400). The length of the portion of the rotating shaft (400) protruding from the first end face (131) is greater than the length of the portion of the rotating shaft (400) protruding from the second end face (132). The mounting structure also includes a mounting base (600), which is detachably connected to the traction wheel (100). The mounting base (600) is fixed to the second end face (132), and the opening of the second mounting channel (110) is located on the first end face (131). The elastic element (300) is fixed between the mounting base (600) and the braking element (200).

10. An endoscope handle, characterized in that, Includes a traction rope mounting structure as described in any one of claims 1-9.

11. An endoscope, characterized in that, Includes an endoscope handle as described in claim 10.

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