Endoscope handle and endoscope

Abstract

Disclosed in the present utility model are an endoscope handle and an endoscope, relating to the technical field of medical instruments. The endoscope handle of the present utility model comprises a first housing, a second housing, and a traction mechanism. The first housing and the second housing are connected to each other to form an accommodating cavity. The traction mechanism is located in the accommodating cavity. The traction mechanism comprises a traction wheel, a traction rope, and a fixing block. The distal end of the traction rope is connected to an active bending section of the endoscope, and the proximal end of the traction rope is connected to the traction wheel. The traction rope is further slidably arranged in the fixing block. An inner side wall of the first housing is provided with a clamping groove. The clamping groove is in clamped connection with the fixing block, and the traction rope located at the proximal end of the fixing block is arranged in the accommodating cavity in an offset manner. The endoscope handle has the advantages of a small space occupied by the traction rope and a support base thereof, and a reasonable structural layout in the accommodating cavity.

Description

Endoscope handle and endoscope TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially, relates to an endoscope handle and endoscope. BACKGROUND

[0002] The distal end of the endoscope insertion part in the related art is a active bending section, a traction rope is arranged in the handle, the distal end of the traction rope is connected with the active bending section, and the proximal end is arranged on a pulley, by rotating the rotating member, the traction rope can be moved in the same direction or in the opposite direction synchronously, so that the active bending section of the insertion part is bent. The distal end of the active bending section is provided with a camera module, after the insertion part is inserted into the human body, the direction of the camera module is adjusted by the bending of the active bending section, so that the camera module is aligned with the lesion site, to provide diagnostic information for the doctor.

[0003] When the endoscope is assembled, the support seat arranged in the handle supports the traction rope, and the support seat can also be used to limit the traction rope, to limit the displacement of the traction rope in the radial direction of the endoscope handle. However, the inventors have found that: in the related art, the support seats are usually distributed in the middle of the handle inner cavity or on both sides of the handle inner cavity close to the shell. The distribution of the above-mentioned support seats occupies a relatively large space in the handle inner cavity, which is not conducive to the distribution of the instrument channel, suction channel, cable, circuit board, negative pressure suction valve, etc. in the handle.

[0004] Therefore, it is a technical problem to be solved by those skilled in the art to provide a traction rope support structure that occupies a smaller space and has a reasonable layout. SUMMARY

[0005] The utility model discloses an endoscope handle and endoscope, to solve the technical problem that the support seat in the endoscope handle in the related art occupies a larger space and is partially unreasonable.

[0006] In order to solve the above problems, the utility model adopts the following technical scheme:

[0007] The endoscope handle of the utility model, including first shell, second shell and traction mechanism, first shell and second shell are connected with each other and form containing cavity, the traction mechanism is located in containing cavity, the traction mechanism includes traction wheel, traction rope and fixed block, the distal end of traction rope is connected with the active bending section of endoscope, and the proximal end is connected with the traction wheel, the traction rope can also be slidably arranged in the fixed block, the inner side wall of first shell is equipped with the clamping groove, the clamping groove is clamped with the fixed block, and the traction rope of the proximal end of the fixed block is offset and arranged in the containing cavity.

[0008] The utility model discloses an endoscope, including handle and insertion part, wherein, the handle is the endoscope handle of any one technical scheme in the utility model and insertion part is connected with handle.

[0009] The technical scheme applied in the utility model can achieve the following beneficial effects:

[0010] The endoscope handle of the utility model, the inner side wall of the first shell is equipped with the clamping groove, when the clamping groove is clamped with the fixed block, can at least make the traction rope of the fixed block proximal end is arranged in the accommodation cavity, the traction rope of the fixed block proximal end is arranged in the one side of the accommodation cavity, make the middle part in the accommodation cavity and the one side not being equipped with the traction rope can be used to set up instrument channel, suction passage, cable, circuit board, negative pressure suction valve and other structures, compared with the structure that the traction rope is arranged in the middle part or both sides of the accommodation cavity in the prior art, the endoscope handle of the utility model has the advantages that the traction rope and its support seat occupy small space, and the structure layout in the accommodation cavity is reasonable.

[0011] That is, the endoscope handle of the utility model solves the technical problems of the support seat in the endoscope handle in the related art, which occupies a large space and is partially unreasonable. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0013] Fig. 1 is a schematic view of the endoscope of the embodiment of the application;

[0014] Fig. 2 is a first partial schematic view of the endoscope handle of the embodiment of the application;

[0015] Fig. 3 is an enlarged view of part A in Fig. 2;

[0016] Fig. 4 is a second partial schematic view of the endoscope handle of the embodiment of the application;

[0017] Fig. 5 is an enlarged view of part B in Fig. 4;

[0018] Fig. 6 is a third partial schematic view of the endoscope handle of the embodiment of the application;

[0019] Fig. 7 is an enlarged view of part C in Fig. 6;

[0020] Fig. 8 is a schematic view of the cooperation of the traction rope and the fixed block of the embodiment of the application;

[0021] Fig. 9 is a first schematic view of the fixed block of the embodiment of the application;

[0022] Fig. 10 is a second schematic view of the fixed block of the embodiment of the application;

[0023] Fig. 11 is a sectional view of the fixed block of the embodiment of the application;

[0024] Fig. 12 is a sectional view of the traction rope cooperating with the fixed block of the embodiment of the application;

[0025] Fig. 13 is a sectional view of the traction rope, the fixed block and the traction wheel cooperating with each other of the embodiment of the application.

[0026] In the drawings: 10, handle; 11, knob; 20, insertion portion; 110, first housing; 111, clamping groove; 1111, first clamping block; 1112, second clamping block; 1113, chamfer; 120, second housing; 131, traction wheel; 132, traction rope; 133, fixed block; 1331, through hole; 134, sleeve; 140, accommodating cavity; 151, first limiting block; 152, second limiting block; 153, third limiting block; 154, limiting groove; 155, fourth limiting block. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belong to the scope of the utility model.

[0028] The terms "first", "second" and the like in the specification and claims of the application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" and the like are usually a kind, and the number of objects is not limited, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0029] In the embodiments of the application, "proximal end" and "distal end" refer to the relative position of each component to the user in the use environment, wherein the end closer to the user is designated as "proximal end", and the end farther away from the user is designated as "distal end".

[0030] The endoscope handle and the endoscope provided by the embodiments of the present application will be described in detail below in combination with the accompanying drawings 1-13 through specific embodiments and application scenarios.

[0031] The endoscope handle of the present embodiment is provided with a knob 11, and the operator can control the bending of the snake distal end by controlling the knob 11 on the handle, as shown in FIG. 1. The endoscope of the present embodiment can be a disposable endoscope, a limited-time reusable endoscope, or an unlimited-time reusable endoscope. The endoscope of the present embodiment can be a bronchoscope, a renal pelviscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasoscope, an oral mirror, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The present embodiment does not specifically limit the type of endoscope.

[0032] The endoscope handle of the present embodiment includes a first housing 110 and a second housing 120, as shown in FIG. 2. The first housing 110 and the second housing 120 are connected to each other and form a containing cavity 140, as shown in FIGS. 2 and 3. For example, the first housing 110 and the second housing 120 can form the containing cavity 140 by being clamped to each other, as shown in FIGS. 2 and 3.

[0033] In some embodiments, the endoscope handle further includes a traction mechanism. The traction mechanism is located in the containing cavity 140. Without limitation, the containing cavity 140 can also be used to accommodate structures such as an instrument channel, a suction channel, a cable, a circuit board, a negative pressure suction valve, etc.

[0034] In some embodiments, the traction mechanism includes a traction wheel 131 and a traction rope 132, as shown in FIG. 4. The distal end of the traction rope 132 is connected to the active bending section of the endoscope, and the proximal end is connected to the traction wheel 131. For example, the number of traction ropes 132 can be 2, 3, or 4, and the present embodiment does not limit the number of traction ropes 132. The endoscope handle is also provided with a knob 11, and the knob 11 is connected to the traction wheel 131, as shown in FIG. 4. The operator can drive the traction wheel 131 to rotate by controlling the knob 11, so that the traction rope 132 can move in opposite directions synchronously, thereby controlling the bending of the active bending section.

[0035] In some embodiments, the traction mechanism further includes a fixed block 133, and the traction rope 132 is slidably arranged in the fixed block 133, as shown in FIGS. 4 and 5. The inner side wall of the first housing 110 is provided with a clamping groove 111, and the clamping groove 111 is clamped with the fixed block 133, and the traction rope 132 at the proximal end of the fixed block 133 is biased to be arranged in the containing cavity 140, as shown in FIGS. 4 and 5.

[0036] Exemplarily, when the traction rope 132 is biased to one side of the accommodation cavity 140, such as the side close to the clamping groove 111, the clamping of the fixed block 133 and the clamping groove 111 can further bias the traction rope 132 to the side close to the inner wall of the first shell 110, so that the side of the accommodation cavity 140 far from the clamping groove 111 has a larger free space, which can be used to arrange the instrument channel, the suction channel, the cable, the circuit board, the negative pressure suction valve and the like.

[0037] Exemplarily, when the traction rope 132 is biased to one side of the accommodation cavity 140, such as the side close to the clamping groove 111, the clamping of the fixed block 133 and the clamping groove 111 can further bias the traction rope 132 to the side close to the inner wall of the first shell 110, so that the side of the accommodation cavity 140 far from the clamping groove 111 has a larger free space, which can be used to arrange the instrument channel, the suction channel, the cable, the circuit board, the negative pressure suction valve and the like.

[0038] The endoscope handle of the embodiment can not only limit the movement and displacement of the traction rope 132 in the radial direction of the endoscope handle through the clamping of the fixed block 133 and the clamping groove 111, but also can bias the traction rope 132 located at least at the proximal end of the fixed block 133 in the accommodation cavity 140. Compared with the structure that the traction rope 132 is arranged in the middle or on both sides of the accommodation cavity 140 in the prior art, the endoscope handle of the embodiment has the advantages that the traction rope 132 and the support seat thereof occupy a small space, and the structure layout in the accommodation cavity 140 is reasonable.

[0039] That is, the endoscope handle of the embodiment solves the technical problems that the support seat in the endoscope handle in the related art occupies a large space and is locally unreasonable.

[0040] In some embodiments, the first shell 110 and the second shell 120 are further provided with a limiting assembly. When the fixed block 133 is clamped with the clamping groove 111, the limiting assembly is used to limit the fixed block 133 in the axial direction and the radial direction of the accommodation cavity 140. When the traction rope 132 moves, the fixed block 133 will be affected by the traction rope 132. By limiting the fixed block 133 through the limiting assembly, the stability of the clamping of the fixed block 133 and the clamping groove 111 can be ensured.

[0041] The axial direction of the accommodation cavity 140 refers to the direction along which the traction rope 132 is arranged in the accommodation cavity 140. The radial direction of the accommodation cavity 140 refers to the direction perpendicular to the arrangement direction of the traction rope 132 in the accommodation cavity 140. As shown in FIG. 3, the axial direction of the accommodation cavity 140 is the left-right direction, and the radial direction of the accommodation cavity 140 is the up-down direction and / or the front-rear direction.

[0042] In some embodiments, the limiting assembly includes an axial limiting assembly for limiting the axial movement of the fixing block 133 in the axial direction of the accommodating cavity 140. The limiting assembly also includes a radial limiting assembly for limiting the radial movement of the fixing block 133 in the radial direction of the accommodating cavity 140.

[0043] In some embodiments, the limiting assembly includes a first limiting block 151 and a second limiting block 152, as shown in FIG. 3. The first limiting block 151 and the second limiting block 152 form an axial limiting assembly. The first limiting block 151 is located in the clamping groove 111, and the second limiting block 152 is located in the second shell 120 and extends into the accommodating cavity 140, as shown in FIG. 3. When the fixing block 133 is clamped in the clamping groove 111 and the first shell 110 is connected to the second shell 120, the first limiting block 151 and the second limiting block 152 abut the lower end surface and the upper end surface of the fixing block 133, respectively, as shown in FIG. 3.

[0044] When the traction rope 132 moves, the first limiting block 151 and the second limiting block 152 abut the lower end surface and the upper end surface of the fixing block 133, which limits the radial movement of the fixing block 133 in the radial direction of the accommodating cavity 140 and maintains the stability of the fixing block 133.

[0045] In some embodiments, the inner side wall of the first shell 110 is provided with a first clamping block 1111 and a second clamping block 1112, which are spaced apart and form a clamping groove 111, as shown in FIGS. 6 and 7. By spacing apart the first clamping block 1111 and the second clamping block 1112 to form the clamping groove 111, when the fixing block 133 is assembled with the clamping groove 111, compared with the square hole-shaped clamping groove 111, the clamping groove 111 of the present embodiment not only reduces the assembly difficulty of the fixing block 133, but also improves the assembly precision of the fixing block 133. On the other hand, by clamping the fixing block 133 in the clamping groove 111, the first clamping block 1111 and the second clamping block 1112 can limit the axial movement of the fixing block 133 in the axial direction of the accommodating cavity 140, thereby maintaining the stability of the fixing block 133.

[0046] In some embodiments, the limiting assembly also includes a third limiting block 153 and a limiting groove 154, as shown in FIGS. 7-10. The third limiting block 153 and the limiting groove 154 form a radial limiting assembly. The third limiting block 153 is provided on at least one of the first clamping block 1111 and the second clamping block 1112, and the limiting groove 154 is provided on the fixing block 133. Alternatively, the third limiting block 153 is provided on the fixing block 133, and the limiting groove 154 is provided on at least one of the first clamping block 1111 and the second clamping block 1112.

[0047] When the traction rope 132 moves, the third limiting block 153 and the limiting groove 154 can limit the fixed block 133 in the axial direction of the accommodating cavity 140, thereby keeping the stability of the fixed block 133.

[0048] In some embodiments, the first clamping block 1111 and the second clamping block 1112 are T-shaped structures, as shown in FIG. 7. The protrusions on the side of the first clamping block 1111 and the second clamping block 1112 facing the clamping groove 111 are third limiting blocks 153, as shown in FIG. 7. The two sides of the fixed block 133 are provided with limiting grooves 154. When the fixed block 133 is installed in the clamping groove 111, the third limiting block 153 and the limiting groove 154 can guide the installation of the fixed block 133. On the other hand, when the fixed block 133 is installed in the clamping groove 111, the installation of the fixed block 133 can be achieved, and at the same time, the clamping of the third limiting block 153 and the limiting groove 154 can be achieved, which is beneficial to simplify the assembly process of the fixed block 133.

[0049] In some embodiments, the height of the limiting groove 154 is greater than or equal to the distance between the end face of the first limiting block 151 and the end face of the first clamping block 1111, or the height of the limiting groove 154 is greater than or equal to the distance between the end face of the first limiting block 151 and the end face of the second clamping block 1112. Preferably, the height of the limiting groove 154 is equal to the distance between the end face of the first limiting block 151 and the end face of the first clamping block 1111, or the height of the limiting groove 154 is equal to the distance between the end face of the first limiting block 151 and the end face of the second clamping block 1112.

[0050] By limiting the height of the limiting groove 154, when the third limiting block 153 and the limiting groove 154 are clamped, not only the limiting of the fixed block 133 in the axial direction of the accommodating cavity 140 can be enhanced, but also the limiting of the fixed block 133 in the radial direction of the accommodating cavity 140 can be enhanced, thereby improving the stability of the fixed block 133.

[0051] In some embodiments, the end face of the first clamping block 1111 and the second clamping block 1112 is provided with a chamfer 1113 facing the side of the clamping groove 111, as shown in FIG. 7. The end face of the third limiting block 153 is also provided with a chamfer 1113. The chamfer 1113 can facilitate the assembly of the fixed block 133.

[0052] In some embodiments, the limiting assembly further comprises a fourth limiting block 155, as shown in FIG. 7. The fourth limiting block 155 is located in the clamping groove 111, and the fourth limiting block 155 abuts against the side of the fixed block 133 close to the first shell 110 when the fixed block 133 is clamped with the clamping groove 111.

[0053] Since the first shell 110 is a curved surface structure, when the fixing block 133 is clamped with the clamping groove 111, the problem of deflection of the fixing block 133 may occur. The fourth limiting block 155 is arranged in the embodiment, which not only can play a positioning role for the installation of the fixing block 133, but also can play a limiting role for the front and back directions of the fixing block 133 through the cooperation of the fourth limiting block 155 and the third limiting block 153, thereby further improving the stability of the fixing block 133.

[0054] In some embodiments, a through hole 1331 is arranged on the fixing block 133, and the traction rope 132 is slidably arranged in the through hole 1331, as shown in FIGS. 8-10. For example, when the traction mechanism has two traction ropes 132, correspondingly, two through holes 1331 are arranged on the fixing block 133, and the two traction ropes 132 are respectively arranged in the two through holes 1331, as shown in FIGS. 8-10.

[0055] In some embodiments, in order to protect the traction rope 132, a sleeve 134 is further arranged outside the traction rope 132, as shown in FIG. 8. The inner diameter of the through hole 1331 is greater than the outer diameter of the traction rope 132, or the inner diameter of the through hole 1331 is greater than the outer diameter of the sleeve 134 arranged outside the traction rope 132, so that the traction rope 132 and the fixing block 133 can slide relative to each other.

[0056] In some embodiments, when the fixing block 133 is clamped with the clamping groove 111, the height of the through hole 1331 on the fixing block 133 is less than the height of the end face of the clamping groove 111, and the distance between the traction rope 132 and the inner wall of the first shell 110 is greater than the distance between the first clamping block 1111 and the second clamping block 1112 and the inner wall of the first shell 110. The through hole 1331 is arranged in this position, so that after the fixing block 133 is clamped with the clamping groove 111, the traction rope 132 is located on the side away from the inner wall of the first shell 110 of the first clamping block 1111 and the second clamping block 1112. As shown in FIG. 3, the traction rope 132 is located in front of the first clamping block 1111 and the second clamping block 1112, which is beneficial to maintaining the stability of the fixing block 133 during the movement of the traction rope 132, and also helps to reduce the height of the fixing block 133 and save the internal space of the accommodating cavity 140.

[0057] In some embodiments, the through hole 1331 is in a stepped shape, so that the part with a larger inner diameter in the through hole 1331 can be used to accommodate the sleeve 134, and the part with a smaller inner diameter in the through hole 1331 is used to accommodate the traction rope 132, as shown in FIGS. 11 and 12.

[0058] In some embodiments, the part of the through hole 1331 for assembling the traction rope 132 is in a tapered structure, as shown in FIGS. 11-13. From the side close to the traction wheel 131 to the side away from the traction wheel 131, the inner diameter of the tapered structure gradually decreases, as shown in FIGS. 11-13.

[0059] Due to the large size of the traction wheel 131, the distance between the two traction ropes 132 near the traction wheel 131 side is greater than the distance between the two traction ropes 132 near the fixed block 133 side. During the movement of the traction rope 132, the traction rope 132 rubs against the entrance of the through hole 1331 (the entrance is the side where the traction rope 132 enters the through hole 1331). After long-term use, the traction rope 132 has a risk of breaking.

[0060] The part of the through hole 1331 for assembling the traction rope 132 in the embodiment is a tapered structure, which helps to reduce the friction between the traction rope 132 and the through hole 1331 during the movement of the traction rope 132, thereby improving the service life of the traction rope 132.

[0061] The endoscope of the embodiment includes a handle 10 and an insertion part 20, and the insertion part 20 is connected to the handle 10, as shown in FIG. 1. The handle 10 is the endoscope handle of any one of the technical solutions in the embodiment.

[0062] The endoscope of the embodiment has the advantages of small space occupied by the traction rope 132 and its support seat in the handle 10 and reasonable structure layout in the accommodation cavity 140.

[0063] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An endoscope handle, characterized by, The utility model relates to a medical endoscope traction device, comprising a first shell (110), a second shell (120) and a traction mechanism, the first shell (110) and the second shell (120) are connected with each other and form a containing cavity (140), the traction mechanism is located in the containing cavity (140), The traction mechanism comprises a traction wheel (131), a traction rope (132) and a fixed block (133), the distal end of the traction rope (132) is connected with the active bending section of the endoscope, the proximal end is connected with the traction wheel (131), and the traction rope (132) is also slidably arranged in the fixed block (133), The inner side wall of the first shell (110) is provided with a clamping groove (111), the clamping groove (111) is clamped with the fixed block (133), and the traction rope (132) at the proximal end of the fixed block (133) is biased in the containing cavity (140).

2. The endoscope handle of claim 1, wherein The first shell (110) and the second shell (120) are also provided with a limiting assembly, when the fixed block (133) is clamped with the clamping groove (111), the limiting assembly is used for limiting the fixed block (133) in the axial direction and the radial direction of the containing cavity (140).

3. The endoscope handle of claim 2, wherein, The limiting assembly comprises a first limiting block (151) and a second limiting block (152), the first limiting block (151) is located in the clamping groove (111), the second limiting block (152) is located in the second shell (120) and extends into the containing cavity (140), When the fixed block (133) is clamped with the clamping groove (111) and the first shell (110) is connected with the second shell (120), the first limiting block (151) and the second limiting block (152) respectively abut with the lower end face and the upper end face of the fixed block (133).

4. The endoscope handle of claim 2, wherein The inner side wall of the first shell (110) is provided with a first clamping block (1111) and a second clamping block (1112), the first clamping block (1111) and the second clamping block (1112) are arranged at intervals and form the clamping groove (111), The limiting assembly further comprises a third limiting block (153) and a limiting groove (154), wherein, The third limiting block (153) is arranged on at least one of the first clamping block (1111) and the second clamping block (1112), and the limiting groove (154) is arranged on the fixed block (133), or The third limiting block (153) is arranged on the fixed block (133), and the limiting groove (154) is arranged on at least one of the first clamping block (1111) and the second clamping block (1112).

5. The endoscope handle of claim 4, wherein The first clamping block (1111) and the second clamping block (1112) are T-shaped structures, and the protruding blocks on the side of the first clamping block (1111) and the second clamping block (1112) towards the clamping groove (111) are formed as the third limiting block (153). The fixing block (133) is provided with the limiting groove (154) on both sides, and the height of the limiting groove (154) is greater than or equal to the distance between the end face of the first limiting block (151) and the end face of the first clamping block (1111), or the height of the limiting groove (154) is greater than or equal to the distance between the end face of the first limiting block (151) and the end face of the second clamping block (1112).

6. The endoscope handle of claim 4, wherein The first clamping block (1111) and the second clamping block (1112) are provided with chamfers (1113) on the end faces and on the sides of the clamping groove (111).

7. The endoscope handle of claim 4, wherein The limiting assembly further comprises a fourth limiting block (155), which is located in the clamping groove (111), and when the fixing block (133) is clamped with the clamping groove (111), the fourth limiting block (155) abuts against the side of the fixing block (133) close to the first shell (110).

8. The endoscope handle of any one of claims 1 to 7, wherein, The fixing block (133) is provided with a through hole (1331), and the traction rope (132) is slidably arranged in the through hole (1331), and when the fixing block (133) is clamped with the clamping groove (111), The height of the through hole (1331) on the fixing block (133) is less than the height of the end face of the clamping groove (111), and the distance between the traction rope (132) and the inner wall of the first shell (110) is greater than the distance between the first clamping block (1111) and the second clamping block (1112) and the inner wall of the first shell (110).

9. The endoscope handle of claim 8, wherein, The part of the through hole (1331) for assembling the traction rope (132) is a tapered structure, and the inner diameter of the tapered structure gradually decreases from the side close to the traction wheel (131) to the side away from the traction wheel (131).

10. An endoscope characterized by comprising: The handle (10) is an endoscope handle according to any one of claims 1 to 9, and the insertion portion (20) is connected with the handle (10).

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