Traction rope guide assembly, endoscope handle and endoscope

Abstract

The utility model discloses a traction rope guide assembly, an endoscope handle and an endoscope, and relates to the technical field of medical instruments. The traction rope guiding assembly comprises a first rotating supporting piece and a second rotating supporting piece, the first rotating supporting piece and the second rotating supporting piece are arranged on a positioning column or a positioning sleeve of a shell in a sleeving mode, a first limiting groove is formed in the circumferential direction of the first rotating supporting piece and used for supporting a first traction section, and a second limiting groove is formed in the circumferential direction of the second rotating supporting piece and used for supporting a second traction section. A first limiting groove is formed in the circumferential direction of the first rotary supporting piece and used for supporting the second traction section, and the first limiting groove is further used for limiting radial displacement of the first traction section, a second limiting groove is formed in the circumferential direction of the second rotary supporting piece and used for supporting the second traction section, and the second limiting groove is further used for limiting radial displacement of the second traction section. The traction rope guide assembly can change the extension directions of the first traction section and the second traction section, guide and limit the traction rope, and prevent the traction rope from interfering with the internal structure of the handle shell.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a traction rope guide assembly, an endoscope handle and an endoscope. Background Art

[0002] An endoscope is a commonly used medical device that can directly enter the natural cavity of the human body for inspection and provide doctors with sufficient diagnostic information. An endoscope usually includes: an insertion part for inserting into the human body, a handle for controlling the bending of the front end of the insertion part, and a display device for displaying the internal environment of the natural cavity of the human body; the cooperation of the above three parts can realize the internal observation of the human body, the exploration of lesions and the treatment.

[0003] The distal end of the insertion part is the active bending section, and a traction rope is arranged in the handle. The distal end of the traction rope is connected to the active bending section, and the proximal end is wound around the dial wheel. The traction rope is in a taut state. By turning the dial wheel, the traction rope can be moved synchronously in different directions, thereby making the active bending section of the insertion part bend.

[0004] The handle is not only provided with a traction rope, but also with cable harnesses, instrument channels, negative pressure suction channels, positioning columns, fixing holes, mounting seats and other structures, resulting in a complex structure in the handle and a compact layout. In addition, the handle shell has an irregular structure and a small distal end. The traction rope is installed in the handle and is prone to interfere with the structure in the handle. On the other hand, when the traction ropes move synchronously in opposite directions, the taut section of the traction rope is prone to generate friction with the shell or the internal structure of the shell, affecting the service life of the traction rope. The slack section of the traction rope is prone to entanglement or jamming with the internal structure of the shell, affecting the switching of the active bending section from a bent state to a straight state.

[0005] Therefore, providing a guide assembly that can guide a traction rope has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0006] The utility model discloses a traction rope guiding component, an endoscope handle and an endoscope, so as to solve the technical problem in the related technology that the traction rope is easy to interfere with the structure in the handle.

[0007] In order to solve the above problems, the utility model adopts the following technical solutions:

[0008] A first aspect of the utility model provides a traction rope guide assembly.

[0009] The traction rope guiding assembly of the present utility model is applied to an endoscope. The traction rope guiding assembly includes a first rotating support member and a second rotating support member. The first rotating support member and the second rotating support member are sleeved on a positioning post or a positioning sleeve of a housing. A first limiting groove is formed in the circumferential direction of the first rotating support member. The first limiting groove is used to support a first traction section and also used to limit the radial displacement of the first traction section. A second limiting groove is formed in the circumferential direction of the second rotating support member. The second limiting groove is used to support a second traction section and also used to limit the radial displacement of the second traction section.

[0010] Further, the first rotating support member includes a first body and first limiting portions. The first limiting portions are located at both ends of the first body. The diameter of the first limiting portions is greater than the diameter of the first body, and the first limiting groove is formed between the first limiting portions and the first body.

[0011] Further, the traction rope guiding assembly further includes a first limiting post. The first limiting post is located at the first rotating support member, and the distance between the first limiting post and the first limiting portion is less than the diameter of the first traction section, and the distance between the first limiting post and the bottom of the first limiting groove is greater than the diameter of the first traction section.

[0012] Further, the second rotating support member includes a second body and second limiting portions. The second limiting portions are located at both ends of the second body. The diameter of the second limiting portions is greater than the diameter of the second body, and the second limiting groove is formed between the second limiting portions and the second body.

[0013] Further, the traction rope guiding assembly further includes a second limiting post. The second limiting post is located at the second rotating support member, and the distance between the second limiting post and the second limiting portion is less than the diameter of the second traction section, and the distance between the second limiting post and the bottom of the second limiting groove is greater than the diameter of the second traction section.

[0014] Further, the first rotating support member is located at one end of the housing away from the runner, and the first rotating support member and the first leading portion of the first traction section are distributed along the axial direction of the housing.

[0015] Further, the second rotating support member is located at one end of the housing away from the runner, and the second rotating support member and the second leading portion of the second traction section are distributed along the axial direction of the housing.

[0016] Further, the second rotation support is also located on the side of the instrument plug away from the insertion portion, and along the axial direction of the second rotation support, the height between the first side of the second limit groove and the housing is less than the height between the housing and the instrument tube, and the first side of the second limit groove is the side of the second limit groove away from the housing.

[0017] The second aspect of the present utility model provides an endoscope handle.

[0018] The endoscope handle of the present utility model includes a housing and a traction rope guiding assembly. The traction rope guiding assembly is the traction rope guiding assembly according to any one of the technical solutions in the present utility model. The housing includes a first housing and a second housing. One of a positioning post and a positioning sleeve is provided on the first housing, and the other of the positioning post and the positioning sleeve is provided on the second housing. The positioning post is installed in the positioning sleeve.

[0019] The third aspect of the present utility model provides an endoscope.

[0020] The endoscope of the present utility model includes a handle, an insertion portion, and a display device. Among them, the handle is the endoscope handle according to any one of the technical solutions in the present utility model. The handle is connected to the insertion portion, and the handle is also connected to the display device.

[0021] The technical solution adopted by the present utility model can achieve the following beneficial effects:

[0022] The traction rope guiding assembly of the present utility model includes a first rotation support and a second rotation support. There is a first limit groove on the first rotation support, and the first limit groove is used to support the first traction segment. There is a second limit groove on the second rotation support, and the second limit groove is used to support the second traction segment. Through the supporting action of the first limit groove and the second limit groove, not only can the extending directions of the first traction segment and the second traction segment be changed, so that the extending direction of the traction rope adapts to the internal structure of the handle housing, avoiding interference between the traction rope and the internal structure of the handle housing, but also when the traction rope moves, the radial displacement of the traction rope can be limited, avoiding the problem that the moving amplitude of the traction rope is too large, resulting in friction between the tensioned segment of the traction rope and the housing or the internal structure of the housing, and winding or jamming between the slack segment of the traction rope and the internal structure of the housing.

[0023] That is, the traction rope guiding assembly of the present utility model can guide and limit the traction rope through the first rotation support and the second rotation support, solving the technical problem that the traction rope in the related art is prone to interference with the structure inside the handle.

[0024] On the other hand, for the traction rope guiding assembly of the present utility model, the first rotating support and the second rotating support are sleeved on the positioning post or positioning sleeve of the housing. The positioning post and the positioning sleeve are the assembly and fixing parts of the housing. By arranging the first rotating support and the second rotating support on the positioning post or positioning sleeve, the first rotating support and the second rotating support do not require an additional installation base, which is beneficial to simplifying the internal structure of the handle and optimizing the internal space layout of the handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 is a schematic diagram of the endoscope according to the embodiment of the present application;

[0027] Figure 2 is a partial schematic diagram of the endoscope according to the embodiment of the present application;

[0028] Figure 3 is Figure 2 an enlarged view of part A in

[0029] Figure 4 is a schematic diagram of the first housing of the embodiment of the present application without the traction rope guiding assembly installed;

[0030] Figure 5 is a schematic diagram of the first housing of the embodiment of the present application with the traction rope guiding assembly installed;

[0031] Figure 6 is Figure 5 an enlarged view of part B in

[0032] Figure 7 is Figure 5 an enlarged view of part C in

[0033] Figure 8 is a schematic diagram of the second housing of the embodiment of the present application.

[0034] In the figure: 110, the first rotating support member; 111, the first limiting groove; 112, the first body; 113, the first limiting portion; 120, the second rotating support member; 121, the second limiting groove; 122, the second body; 123, the second limiting portion; 130, the first limiting post; 140, the second limiting post; 200, the handle; 210, the housing; 210a, the first housing; 210b, the second housing; 211, the positioning post; 212, the positioning sleeve; 310, the first traction section; 320, the second traction section; 330, the runner; 341, the first leading-out portion; 342, the second leading-out portion; 410, the instrument bolt; 420, the instrument tube; 500, the insertion portion. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described in detail below. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts fall within the scope protected by the present utility model.

[0036] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0037] In the embodiments of this application, "proximal end" and "distal end" refer to the relative distances of each component 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".

[0038] The following combines the attached Figures 1 to 8 drawings, and through specific embodiments and their application scenarios, the traction rope guiding assembly, the endoscope handle and the endoscope provided by the embodiments of this application are described in detail.

[0039] The first aspect of this embodiment details the traction rope guiding assembly.

[0040] The traction rope guiding assembly of this embodiment is applied to an endoscope, specifically to the endoscope handle 200, to guide the traction rope inside the handle 200.

[0041] Specifically, the handle 200 has a shell 210, and the shell 210 includes a first shell 210a and a second shell 210b. The first shell 210a is provided with one of the positioning column 211 and the positioning sleeve 212, and the second shell 210b is provided with the other of the positioning column 211 and the positioning sleeve 212. The positioning column 211 is installed in the positioning sleeve 212, so that the first shell 210a and the second shell 210b can be assembled and fixed. Figure 2 , Figure 4 , Figure 5 and Figure 8 It shows a schematic diagram that a positioning column 211 is provided on the first shell 210a, and a positioning sleeve 212 is provided on the second shell 210b.

[0042] The traction rope guide assembly of this embodiment includes a first rotating support member 110 and a second rotating support member 120. Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown. The first rotating support member 110 and the second rotating support member 120 are sleeved on the positioning column 211 or the positioning sleeve 212 of the housing 210. Exemplarily, the first rotating support member 110 and the second rotating support member 120 are fixedly connected to the positioning column 211 or the positioning sleeve 212, and when the traction rope moves, the traction rope and the first rotating support member 110 or the second rotating support member 120 generate friction; the first rotating support member 110 and the second rotating support member 120 and the positioning column 211 or the positioning sleeve 212 can also be rotatably connected, which helps to reduce the friction generated between the traction rope and the first rotating support member 110 or the second rotating support member 120 when the traction rope moves.

[0043] The positioning column 211 and the positioning sleeve 212 are assembly fixing parts of the shell 210. The first rotating support member 110 and the second rotating support member 120 are arranged on the positioning column 211 or the positioning sleeve 212, so that the first rotating support member 110 and the second rotating support member 120 do not need an additional mounting base, which is beneficial to simplifying the internal structure of the handle 200 and optimizing the internal space layout of the handle 200.

[0044] Preferably, the first rotating support member 110 and the second rotating support member 120 are sleeved on the positioning column 211. Figure 2 , Figure 3 , Figure 5 and Figure 7As shown in the figure. Since the radial dimension of the positioning post 211 is smaller than that of the positioning sleeve 212, by sleeving the first rotating support member 110 and the second rotating support member 120 on the positioning post 211, the first rotating support member 110 and the second rotating support member 120 can be made as small as possible, reducing the occupied space of the first rotating support member 110 and the second rotating support member 120 within the housing 210. At the same time, after the positioning post 211 is installed in the positioning sleeve 212, the positioning sleeve 212 can also axially limit the first rotating support member 110 and the second rotating support member 120, preventing the first rotating support member 110 and the second rotating support member 120 from slipping off the positioning post 211, and enhancing the reliability of the assembly of the first rotating support member 110 and the second rotating support member 120.

[0045] Preferably, a first limiting groove 111 is formed in the circumferential direction of the first rotating support member 110. The first limiting groove 111 is used to support the first traction section 310, and the first limiting groove 111 is also used to limit the radial displacement of the first traction section 310, as Figure 2 and Figure 3 shown in the figure. A second limiting groove 121 is formed in the circumferential direction of the second rotating support member 120. The second limiting groove 121 is used to support the second traction section 320, and the second limiting groove 121 is also used to limit the radial displacement of the second traction section 320. The radial displacement here can be the displacement in the radial direction relative to the first traction section 310 or the second traction section 320.

[0046] Not limited to this, the traction rope guiding assembly of this embodiment may further include a third rotating support member and a fourth rotating support member, and the structures of the third rotating support member and the fourth rotating support member are the same as those of the first rotating support member 110 and the second rotating support member 120. Specifically, in order to achieve multi-directional bending of the active bending section, the endoscope may also include two traction ropes. At this time, there are four traction sections within the handle 200, and the third rotating support member and the fourth rotating support member are respectively used to support and guide the third traction section and the fourth traction section.

[0047] It can be known that for the traction rope guiding assembly of this embodiment, the number of rotating support members is the same as the number of traction sections within the handle 200.

[0048] The traction rope guiding assembly of this embodiment, through the supporting action of the first limiting groove 111 and the second limiting groove 121, can not only change the extending directions of the first traction section 310 and the second traction section 320, making the extending direction of the traction rope adapt to the internal structure of the housing 210, avoiding interference between the traction rope and the internal structure of the housing 210, but also limit the radial displacement of the traction rope when the traction rope moves, avoiding the problem that the moving amplitude of the traction rope is too large, resulting in friction between the tension section of the traction rope and the housing 210 or the internal structure of the housing 210, and entanglement or clamping between the slack section of the traction rope and the internal structure of the housing 210.

[0049] That is, the traction rope guiding assembly of this embodiment can guide and limit the traction rope through the first rotating support member 110 and the second rotating support member 120, solving the technical problem that the traction rope in the related art is prone to interference with the structure inside the handle 200.

[0050] During the R & D process, the inventor also considered directly opening a groove on the positioning post 211 to guide the traction rope. However, the inventor found that: due to the small radial dimension of the positioning post 211, opening a groove on the positioning post 211 not only makes the depth of the groove small, which is not conducive to guiding and limiting the traction rope, but also opening a groove on the positioning post 211 will affect the strength of the positioning post 211 and the reliability of the assembly and fixation of the first housing 210a and the second housing 210b.

[0051] The traction rope guiding assembly of this embodiment, by providing the first rotating support member 110 and the second rotating support member 120, and the first rotating support member 110 and the second rotating support member 120 are sleeved on the positioning post 211, can not only ensure reliable guiding and limiting of the traction rope by the guiding assembly, but also will not affect the strength of the positioning post 211, and can ensure the reliability of the assembly and fixation of the first housing 210a and the second housing 210b.

[0052] According to an optional embodiment, the first rotating support member 110 includes a first body 112 and a first limiting portion 113. The first limiting portion 113 is located at both ends of the first body 112. The diameter of the first limiting portion 113 is larger than the diameter of the first body 112, and a first limiting groove 111 is formed between the first limiting portion 113 and the first body 112, as Figure 5 and Figure 7 shown. Preferably, the first body 112 and the first limiting portion 113 are of an integral structure, which can simplify the production and installation processes of the first rotating support member 110. The first limiting groove 111 is formed by the first body 112 and the first limiting portions 113 at both ends thereof. The first traction section 310 is located in the first limiting groove 111, which can play a role in guiding and limiting the first traction section 310.

[0053] According to an alternative embodiment, the traction rope guiding assembly further includes a first limiting post 130, and the first limiting post 130 is located at the first rotating support 110, as Figure 2 , Figure 3 , Figure 5 and Figure 7 shown. Preferably, the distance between the first limiting post 130 and the first limiting portion 113 is less than the diameter of the first traction section 310, and the distance between the first limiting post 130 and the bottom of the first limiting groove 111 is greater than the diameter of the first traction section 310. By providing the first limiting post 130, the first traction section 310 can be prevented from slipping out of the first limiting groove 111.

[0054] According to an alternative embodiment, the second rotating support 120 includes a second body 122 and a second limiting portion 123. The second limiting portion 123 is located at both ends of the second body 122, and the diameter of the second limiting portion 123 is greater than that of the second body 122, so that a second limiting groove 121 is formed between the second limiting portion 123 and the second body 122, as Figure 5 and Figure 7 shown. Preferably, the second body 122 and the second limiting portion 123 are of an integral structure, which can simplify the production and installation processes of the second rotating support 120. The second limiting groove 121 is formed by the second body 122 and the second limiting portions 123 at both ends thereof. The second traction section 320 is located in the second limiting groove 121, which can play a guiding and limiting role for the second traction section 320.

[0055] According to an alternative embodiment, the traction rope guiding assembly further includes a second limiting post 140, and the second limiting post 140 is located at the second rotating support 120, as Figure 2 , Figure 3 , Figure 5 and Figure 7 shown. Preferably, the distance between the second limiting post 140 and the second limiting portion 123 is less than the diameter of the second traction section 320, and the distance between the second limiting post 140 and the bottom of the second limiting groove 121 is greater than the diameter of the second traction section 320. By providing the second limiting post 140, the second traction section 320 can be prevented from slipping out of the second limiting groove 121.

[0056] According to an alternative embodiment, the first rotating support 110 is located at one end of the housing 210 away from the runner 330, and the first rotating support 110 and the first leading portion 341 of the first traction section 310 are distributed along the axial direction of the housing 210, as Figure 2 and Figure 3 shown. As Figure 6As shown, the first lead-out portion 341 is a first groove near the runner 330, and this first groove is used to lead out the first traction section 310 passing through the runner 330. That is, the first rotating support member 110 is located in the bent area at the distal end of the housing 210. Through the supporting and guiding action of the first rotating support member 110 on the first traction section 310, the extending distribution path of the first traction section 310 better adapts to the extending distribution characteristics of the housing 210, which is further beneficial to the internal structure layout of the housing 210 and avoids interference between the first traction section 310 and the remaining structures inside the housing 210.

[0057] According to an alternative embodiment, the second rotating support member 120 is located at one end of the housing 210 away from the runner 330, and the second rotating support member 120 and the second lead-out portion 342 of the second traction section 320 are distributed along the axial direction of the housing 210, as Figure 2 and Figure 3 shown. As Figure 6 shown, the second lead-out portion 342 is a second groove near the runner 330, and this second groove is used to lead out the second traction section 320 passing through the runner 330. That is, the second rotating support member 120 is located in the bent area at the distal end of the housing 210. Through the supporting and guiding action of the second rotating support member 120 on the second traction section 320, the extending distribution path of the second traction section 320 better adapts to the extending distribution characteristics of the housing 210, which is further beneficial to the internal structure layout of the housing 210 and avoids interference between the second traction section 320 and the remaining structures inside the housing 210.

[0058] According to an alternative embodiment, the second rotating support member 120 is also located on the side of the instrument plug 410 away from the insertion portion 500, as Figure 2 and Figure 3 shown. As Figure 2 and Figure 3 shown, if the second rotating support member 120 is located on the side of the instrument plug 410 close to the insertion portion 500, the fold angle of the second traction section 320 at the second rotating support member 120 will be larger, resulting in greater loss when the second traction section 320 is pulled.

[0059] Preferably, along the axial direction of the second rotating support member 120, the height between the first side of the second limiting groove 121 and the housing 210 is less than the height between the housing 210 and the instrument tube 420, so that the second traction section 320 and the instrument tube 420 can be staggered in the height direction. The first side of the second limiting groove 121 is the side of the second limiting groove 121 away from the housing 210.

[0060] The second aspect of this embodiment details the endoscope handle.

[0061] The endoscope handle of this embodiment includes a housing 210, and the housing 210 includes a first housing 210a and a second housing 210b. One of a positioning post 211 and a positioning sleeve 212 is provided on the first housing 210a, and the other of the positioning post 211 and the positioning sleeve 212 is provided on the second housing 210b. The positioning post 211 is installed in the positioning sleeve 212, as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 8 shown.

[0062] The endoscope handle of this embodiment further includes a traction rope guiding assembly, and the traction rope guiding assembly is the traction rope guiding assembly of any one of the technical solutions in this embodiment. The traction rope guiding assembly is sleeved on the positioning post 211 or the positioning sleeve 212, as Figure 2 and Figure 5 shown.

[0063] The remaining structures inside the housing 210 can be the same as those in the prior art and will not be elaborated here. Figure 2 Only the main structures inside the housing 210 are shown in

[0064] The endoscope handle of this embodiment has the traction rope guiding assembly of any one of the technical solutions in this embodiment, which can avoid interference between the traction rope and the internal structures of the housing 210.

[0065] The third aspect of this embodiment elaborates on the endoscope in detail.

[0066] The endoscope of this embodiment includes a handle 200, an insertion portion 500, and a display device. Among them, the handle 200 is the endoscope handle of any one of the technical solutions in this embodiment. The handle 200 is connected to the insertion portion 500, and the handle 200 is also connected to the display device, as Figure 1 and Figure 2 shown.

[0067] The endoscope of this embodiment has the endoscope handle of any one of the technical solutions in this embodiment, which can avoid interference between the traction rope in the handle 200 and the internal structures of the housing 210.

[0068] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is 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 explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitations, 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 that element.

[0069] In addition, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0070] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model.

Claims

1. A traction rope guide assembly, applied to an endoscope, characterized in that: The traction rope guiding assembly comprises a first rotating support member (110) and a second rotating support member (120). The first rotating support member (110) and the second rotating support member (120) are sleeved on a positioning column (211) or a positioning sleeve (212) of the housing (210). A first limiting groove (111) is formed in the circumferential direction of the first rotation support member (110), the first limiting groove (111) being used to support the first traction segment (310), and the first limiting groove (111) being also used to limit the radial displacement of the first traction segment (310). A second limiting groove (121) is formed in the circumferential direction of the second rotation support member (120), the second limiting groove (121) being used to support the second traction segment (320), and the second limiting groove (121) being also used to limit the radial displacement of the second traction segment (320).

2. The traction rope guide assembly according to claim 1, characterized in that: The first rotation support member (110) comprises a first body (112) and a first limiting portion (113). The first limiting portion (113) is located at two ends of the first body (112); the diameter of the first limiting portion (113) is greater than the diameter of the first body (112), and the first limiting groove (111) is formed between the first limiting portion (113) and the first body (112).

3. The traction rope guide assembly according to claim 2, characterized in that: It also includes a first limiting column (130), the first limiting column (130) is located at the first rotating support member (110), and The distance between the first limiting column (130) and the first limiting portion (113) is smaller than the diameter of the first traction section (310), and the distance between the first limiting column (130) and the bottom of the first limiting groove (111) is larger than the diameter of the first traction section (310).

4. The traction rope guide assembly according to claim 1, characterized in that: The second rotation support member (120) comprises a second body (122) and a second limiting portion (123). The second limiting portion (123) is located at two ends of the second body (122); the diameter of the second limiting portion (123) is greater than the diameter of the second body (122), and the second limiting groove (121) is formed between the second limiting portion (123) and the second body (122).

5. The traction rope guide assembly according to claim 4, characterized in that: It also includes a second limiting column (140), the second limiting column (140) is located at the second rotation support member (120), and The distance between the second limiting column (140) and the second limiting portion (123) is smaller than the diameter of the second traction section (320), and the distance between the second limiting column (140) and the bottom of the second limiting groove (121) is larger than the diameter of the second traction section (320).

6. The traction rope guide assembly according to any one of claims 1 to 5, characterized in that: The first rotating support member (110) is located at one end of the housing (210) away from the rotating wheel (330), and the first rotating support member (110) and the first lead-out portion (341) of the first traction section (310) are distributed along the axial direction of the housing (210).

7. The traction rope guide assembly according to any one of claims 1 to 5, characterized in that: The second rotation support member (120) is located at one end of the housing (210) away from the rotating wheel (330), and the second rotation support member (120) and the second lead-out portion (342) of the second traction section (320) are distributed along the axial direction of the housing (210).

8. The traction rope guide assembly according to claim 7, characterized in that: The second rotation support member (120) is also located on a side of the instrument pin (410) away from the insertion portion (500), and, Along the axial direction of the second rotation support member (120), the height between the first side of the second limiting groove (121) and the shell (210) is less than the height between the shell (210) and the instrument tube (420), and the first side of the second limiting groove (121) is the side of the second limiting groove (121) away from the shell (210).

9. An endoscope handle, characterized in that: It comprises a housing (210) and a traction rope guide assembly, wherein the traction rope guide assembly is the traction rope guide assembly according to any one of claims 1 to 8, The shell (210) comprises a first shell (210a) and a second shell (210b); the first shell (210a) is provided with one of a positioning column (211) and a positioning sleeve (212); the second shell (210b) is provided with the other of a positioning column (211) and a positioning sleeve (212); the positioning column (211) is installed in the positioning sleeve (212).

10. An endoscope, characterized in that: The invention comprises a handle (200), an insertion part (500) and a display device, wherein the handle (200) is the endoscope handle according to claim 9, the handle (200) is connected to the insertion part (500), and the handle (200) is also connected to the display device.

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