Endoscope handle and endoscope

Abstract

The utility model discloses an endoscope handle and an endoscope, and relates to the technical field of medical instruments. The endoscope handle comprises a first shell, a second shell and a traction mechanism, the first shell and the second shell are connected with each other and form a containing cavity, the traction mechanism is located in the containing cavity and comprises a traction wheel, a traction rope and a fixing block, the far end of the traction rope is connected with an active bending section of an endoscope, and the near end of the traction rope is connected with the traction wheel. The traction rope is further arranged in the fixing block in a sliding mode, a clamping groove is formed in the inner side wall of the first shell and connected with the fixing block in a clamping mode, and the part, located at the near end of the fixing block, of the traction rope is arranged in the containing cavity in an offset mode. The endoscope handle has the advantages that the traction rope and the supporting base of the traction rope occupy small space, and the structural layout in the containing cavity is reasonable.

Description

Technical Field

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

[0002] An endoscope is a commonly used medical device that can directly enter the human body for examination 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 human body's natural cavity; the endoscope can realize the internal observation of the human body, the exploration of lesions, and the treatment of lesions through the cooperation of the above three parts.

[0003] The distal end of the insertion part of the endoscope in the related art is an active bending section. A traction rope is provided in the handle. The distal end of the traction rope is connected to the active bending section, and the proximal end is provided on the dial wheel. By turning the dial, the traction rope can be moved synchronously in different directions, so that the active bending section of the insertion part is bent. A camera module is provided at the distal end of the active bending section. 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 aimed at the lesion site to provide diagnosis information to the doctor.

[0004] When assembling the endoscope, the traction rope is supported by the support seat arranged in the handle. The support seat can also be used to limit the position of the traction rope and restrict the displacement of the traction rope in the radial direction of the endoscope handle. However, the inventor found that in the endoscope in the related art, the support seat is usually distributed in the middle of the handle cavity or on both sides of the handle cavity close to the shell. The distribution method of the above support seat occupies a large space in the handle 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.

[0005] Therefore, providing a traction rope support structure that occupies less space and has a reasonable layout has become a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0006] The utility model discloses an endoscope handle and an endoscope, so as to solve the technical problems in the related art that a support seat in the endoscope handle occupies a large space and is partially unreasonable.

[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 an endoscope handle.

[0009] The endoscope handle of the present utility model includes a first housing, a second housing, and a traction mechanism. The first housing and the second housing are connected to each other to form a receiving cavity. The traction mechanism is located within the receiving cavity. The traction mechanism includes a traction wheel, a traction rope, and a fixing block. The distal end of the traction rope is connected to the active bending section of the endoscope, and the proximal end is connected to the traction wheel. The traction rope is also slidably disposed within the fixing block. A clamping groove is provided on the inner side wall of the first housing, and the clamping groove is clamped with the fixing block. And the traction rope proximal to the fixing block is offset and disposed within the receiving cavity.

[0010] According to an optional embodiment, a limiting component is further provided on the first housing and the second housing. When the fixing block is clamped with the clamping groove, in the axial direction and the radial direction of the receiving cavity, the limiting component is used to limit the fixing block.

[0011] According to an optional embodiment, the limiting component includes a first limiting block and a second limiting block. The first limiting block is located within the clamping groove, and the second limiting block is located within the second housing and extends into the receiving cavity. When the fixing block is clamped with the clamping groove and the first housing is connected to the second housing, the first limiting block and the second limiting block respectively abut against the lower end face and the upper end face of the fixing block.

[0012] According to an optional embodiment, a first clamping block and a second clamping block are provided on the inner side wall of the first housing. The first clamping block and the second clamping block are spaced apart to form the clamping groove. The limiting component further includes a third limiting block and a limiting groove. Wherein, the third limiting block is provided on at least one of the first clamping block and the second clamping block, the limiting groove is provided on the fixing block, or the third limiting block is provided on the fixing block, and the limiting groove is provided on at least one of the first clamping block and the second clamping block.

[0013] According to an optional embodiment, the first clamping block and the second clamping block are of a T-shaped structure, and the convex blocks of the first clamping block and the second clamping block facing the side of the clamping groove are formed as the third limiting block; the limiting grooves are provided on both sides of the fixing block, and the height of the limiting groove is greater than or equal to the distance between the end face of the first limiting block and the end face of the first clamping block, or the height of the limiting groove is greater than or equal to the distance between the end face of the first limiting block and the end face of the second clamping block.

[0014] According to an optional embodiment, at the end faces of the first clamping block and the second clamping block, and on the sides of the first clamping block and the second clamping block facing the clamping groove, chamfers are provided.

[0015] According to an alternative embodiment, the limiting component further includes a fourth limiting block located in the clamping groove. When the fixing block is clamped with the clamping groove, the fourth limiting block abuts against the side of the fixing block close to the first housing.

[0016] According to an alternative embodiment, the fixing block is provided with a through hole, and the traction rope is slidably arranged in the through hole. When the fixing block is clamped with the clamping groove, the height of the through hole on the fixing block is less than the height at the end face of the clamping groove, and the distance between the traction rope and the inner wall of the first housing is greater than the distances between the first clamping block and the second clamping block and the inner wall of the first housing.

[0017] According to an alternative embodiment, the part of the through hole for assembling the traction rope is of a tapered structure, and the inner diameter of the tapered structure gradually decreases from the side close to the traction wheel to the side far from the traction wheel.

[0018] The second aspect of the present utility model provides an endoscope.

[0019] The endoscope of the present utility model includes a handle and an insertion part. Among them, the handle is the endoscope handle described in any one of the technical solutions of the present utility model, and the insertion part is connected to the handle.

[0020] The technical solution adopted by the present utility model can achieve the following beneficial effects:

[0021] For the endoscope handle of the present utility model, when a clamping groove is provided on the inner side wall of the first housing and the clamping groove is clamped with the fixing block, at least the traction rope at the proximal end of the fixing block can be offset and arranged in the accommodation cavity. The traction rope at the proximal end of the fixing block is offset and arranged on one side of the accommodation cavity, so that the middle part of the accommodation cavity and the side without the traction rope can be used to arrange structures such as an instrument channel, a suction channel, a cable, a circuit board, a negative pressure suction valve, etc. Compared with the traditional structure in which the traction rope is arranged in the middle or on both sides of the accommodation cavity, the endoscope handle of the present utility model has the advantages that the traction rope and its support seat occupy less space and the structure layout in the accommodation cavity is reasonable.

[0022] That is, for the endoscope handle of the present utility model, it solves the technical problems that the support seat in the endoscope handle in the related art occupies a large space and is locally unreasonable. Description of the Drawings

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0024] Figure 1 It is a schematic diagram of the endoscope in the embodiment of the present application;

[0025] Figure 2 It is a first partial schematic diagram of the endoscope handle in the embodiment of the present application;

[0026] Figure 3 is Figure 2 an enlarged view of part A in

[0027] Figure 4 It is a second partial schematic diagram of the endoscope handle in the embodiment of the present application;

[0028] Figure 5 is Figure 4 an enlarged view of part B in

[0029] Figure 6 It is a third partial schematic diagram of the endoscope handle in the embodiment of the present application;

[0030] Figure 7 is Figure 6 an enlarged view of part C in

[0031] Figure 8 It is a schematic diagram of the cooperation between the traction rope and the fixing block in the embodiment of the present application;

[0032] Figure 9 It is a first schematic diagram of the fixing block in the embodiment of the present application;

[0033] Figure 10 It is a second schematic diagram of the fixing block in the embodiment of the present application;

[0034] Figure 11 It is a sectional view of the fixing block in the embodiment of the present application;

[0035] Figure 12 It is a sectional view of the cooperation between the traction rope and the fixing block in the embodiment of the present application;

[0036] Figure 13 It is a sectional view of the cooperation among the traction rope, the fixing block and the traction wheel in the embodiment of the present application.

[0037] In the figure: 10, handle; 11, toggle member; 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, fixing block; 1331, through hole; 134, sleeve; 140, accommodation cavity; 151, first limiting block; 152, second limiting block; 153, third limiting block; 154, limiting groove; 155, fourth limiting block. Detailed implementation manners

[0038] 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. Apparently, 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 creative efforts fall within the scope protected by the present utility model.

[0039] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than 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 means an "or" relationship between the associated objects before and after.

[0040] 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".

[0041] The following combines the attached Figures 1 to 13 , and through specific embodiments and their application scenarios, the endoscope handle and endoscope provided by the embodiments of this application are described in detail.

[0042] This embodiment provides an endoscope handle.

[0043] In the endoscope handle of this embodiment, a toggle member 11 is provided thereon. The operator can control the bending of the distal end of the snake bone by controlling the toggle member 11 on the handle, such as Figure 1As shown. The endoscope of this embodiment can be a disposable endoscope, a limited-reuse endoscope, or an infinitely reusable endoscope. The endoscope of this embodiment can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasal endoscope, an oral endoscope, a laryngoscope, a vaginoscope, a laparoscope, an arthroscope, etc. This embodiment does not specifically limit the type of endoscope.

[0044] The endoscope handle of this embodiment includes a first housing 110 and a second housing 120, as Figure 2 shown. The first housing 110 and the second housing 120 are connected to each other and form a receiving cavity 140, as Figure 2 and Figure 3 shown. Exemplarily, the first housing 110 and the second housing 120 can form the receiving cavity 140 by being snap-fitted to each other, as Figure 2 and Figure 3 shown.

[0045] In some embodiments, the endoscope handle further includes a traction mechanism. The traction mechanism is located in the receiving cavity 140. Without limitation, the receiving cavity 140 can also be used to accommodate structural components such as an instrument channel, a suction channel, a cable, a circuit board, a negative pressure suction valve, etc.

[0046] In some embodiments, the traction mechanism includes a traction wheel 131 and a traction rope 132, as Figure 4 shown. 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. Exemplarily, the number of traction ropes 132 can be 2, 3, or four. This embodiment does not limit the number of traction ropes 132. A toggle member 11 is also provided on the endoscope handle, and the toggle member 11 is connected to the traction wheel 131, as Figure 4 shown. By controlling the toggle of the toggle member 11, the operator can drive the traction wheel 131 to rotate, so that the traction ropes 132 can move synchronously and in opposite directions, and thus the active bending section can be controlled to bend.

[0047] In some embodiments, the traction mechanism further includes a fixing block 133, and the traction rope 132 is slidably disposed in the fixing block 133, as Figure 4 and Figure 5 shown. A clamping groove 111 is provided on the inner side wall of the first housing 110. The clamping groove 111 is clamped with the fixing block 133, and the traction rope 132 proximal to the fixing block 133 is offset and disposed in the receiving cavity 140, as Figure 4 and Figure 5 shown.

[0048] Exemplarily, when the traction rope 132 is located in the middle of the accommodation cavity 140, since the traction rope 132 is also slidably disposed in the fixing block 133 that is engaged with the engaging groove 111, the traction rope 132 between the traction wheel 131 and the fixing block 133 can be offset toward the side close to the engaging groove 111. Furthermore, a relatively large free space can be provided on the side of the accommodation cavity 140 away from the engaging groove 111, which can be used to arrange structures such as an instrument channel, a suction channel, a cable, a circuit board, a negative pressure suction valve, etc.

[0049] Exemplarily, when the traction rope 132 is offset and disposed on one side of the accommodation cavity 140, such as offset toward the side close to the engaging groove 111, through the engagement between the fixing block 133 and the engaging groove 111, the traction rope 132 can be further offset toward the inner wall of the first housing 110. Furthermore, a relatively large free space can be provided on the side of the accommodation cavity 140 away from the engaging groove 111, which can be used to arrange structures such as an instrument channel, a suction channel, a cable, a circuit board, a negative pressure suction valve, etc.

[0050] For the endoscope handle of this embodiment, through the engagement between the fixing block 133 and the engaging groove 111, not only can the displacement of the traction rope 132 in the radial direction of the endoscope handle be limited, but also at least the traction rope 132 proximal to the fixing block 133 can be offset and disposed in the accommodation cavity 140. Compared with the conventional structure in which the traction rope 132 is disposed in the middle or on both sides of the accommodation cavity 140, the endoscope handle of this embodiment has the advantages that the traction rope 132 and its support seat occupy a small space and the structure layout in the accommodation cavity 140 is reasonable.

[0051] That is, the endoscope handle of this embodiment solves the technical problems of the large space occupied by the support seat in the endoscope handle and the local irrationality in the related art.

[0052] In some embodiments, a limiting assembly is further provided on the first housing 110 and the second housing 120. When the fixing block 133 is engaged with the engaging groove 111, the limiting assembly is used to limit the fixing block 133 in the axial direction and the radial direction of the accommodation cavity 140. When the traction rope 132 moves, the fixing block 133 will be affected by the traction rope 132. By limiting the fixing block 133 through the limiting assembly, the stability of the engagement between the fixing block 133 and the engaging groove 111 can be ensured.

[0053] The axial direction of the accommodation cavity 140 refers to the direction along the arrangement of the traction rope 132 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 Figure 3 shown, the axial direction of the accommodation cavity 140 is also the left-right direction; the radial direction of the accommodation cavity 140 is also the up-down direction and / or the front-back direction.

[0054] In some embodiments, the limiting assembly includes an axial limiting assembly for axially limiting the fixing block 133 in the receiving cavity 140. The limiting assembly further includes a radial limiting assembly for radially limiting the fixing block 133 in the receiving cavity 140.

[0055] In some embodiments, the limiting assembly includes a first limiting block 151 and a second limiting block 152, as Figure 3 shown. 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 housing 120 and extends into the receiving cavity 140, as Figure 3 shown. The fixing block 133 is clamped with the clamping groove 111, and when the first housing 110 is connected to the second housing 120, the first limiting block 151 and the second limiting block 152 respectively abut against the lower end face and the upper end face of the fixing block 133, as Figure 3 shown.

[0056] When the towing rope 132 moves, by abutting the first limiting block 151 and the second limiting block 152 against the lower end face and the upper end face of the fixing block 133, the fixing block 133 can be radially limited in the receiving cavity 140 to maintain the stability of the fixing block 133.

[0057] In some embodiments, a first clamping block 1111 and a second clamping block 1112 are provided on the inner side wall of the first housing 110. The first clamping block 1111 and the second clamping block 1112 are arranged at intervals and form a clamping groove 111, as Figure 6 and Figure 7 shown. By arranging the first clamping block 1111 and the second clamping block 1112 at intervals to form the clamping groove 111, when assembling the fixing block 133 with the clamping groove 111, compared with the square-hole-shaped clamping groove 111, the clamping groove 111 in this embodiment can not only reduce the assembly difficulty of the fixing block 133, but also improve the assembly accuracy of the fixing block 133. On the other hand, when the fixing block 133 is clamped in the clamping groove 111, the first clamping block 1111 and the second clamping block 1112 can axially limit the fixing block 133 in the receiving cavity 140 to maintain the stability of the fixing block 133.

[0058] In some embodiments, the limiting assembly further includes a third limiting block 153 and a limiting groove 154, as Figures 7 to 10 shown. 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.

[0059] When the towing rope 132 moves, the engagement of the third limiting block 153 and the limiting groove 154 can limit the fixing block 133 in the axial direction of the accommodating cavity 140 to maintain the stability of the fixing block 133.

[0060] In some embodiments, the first clamping block 1111 and the second clamping block 1112 are of T-shaped structure, as Figure 7 shown. The convex blocks of the first clamping block 1111 and the second clamping block 1112 facing the clamping groove 111 side are formed as the third limiting block 153, as Figure 7 shown. Limiting grooves 154 are provided on both sides of the fixing block 133. When the fixing block 133 is installed in the clamping groove 111, the third limiting block 153 and the limiting groove 154 can play a guiding role in the installation of the fixing block 133. On the other hand, when the fixing block 133 is installed in the clamping groove 111, not only the installation of the fixing block 133 can be realized, but also the engagement of the third limiting block 153 and the limiting groove 154 can be realized at the same time, which is beneficial to simplifying the assembly process of the fixing block 133.

[0061] 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.

[0062] By restricting the height of the limiting groove 154, when the third limiting block 153 and the limiting groove 154 are engaged, not only the limitation of the fixing block 133 in the axial direction of the accommodating cavity 140 can be enhanced, but also the limitation of the fixing block 133 in the radial direction of the accommodating cavity 140 can be enhanced to improve the stability of the fixing block 133.

[0063] In some embodiments, at the end faces of the first clamping block 1111 and the second clamping block 1112, and chamfers 1113 are provided on the first clamping block 1111 and the second clamping block 1112 facing the clamping groove 111 side, as Figure 7 shown. Exemplarily, a chamfer 1113 is provided at the end face of the third limiting block 153. By providing the chamfer 1113, the assembly of the fixing block 133 can be facilitated.

[0064] In some embodiments, the limiting assembly further includes a fourth limiting block 155, as Figure 7 shown. The fourth limiting block 155 is located in the clamping groove 111. When the fixing block 133 is engaged with the clamping groove 111, the fourth limiting block 155 abuts against the side of the fixing block 133 close to the first housing 110.

[0065] Since the first housing 110 has a curved surface structure, when the fixing block 133 is engaged with the clamping groove 111, the problem of deflection of the fixing block 133 may occur. In this embodiment, the fourth limiting block 155 is provided, which can not only play a positioning role in the installation of the fixing block 133, but also play a limiting role in the front-back direction of the fixing block 133 through the cooperation of the fourth limiting block 155 and the third limiting block 153, further improving the stability of the fixing block 133.

[0066] In some embodiments, a through hole 1331 is provided on the fixing block 133, and the towing rope 132 is slidably disposed in the through hole 1331, as Figures 8 to 10 shown. Exemplarily, when the towing mechanism has two towing ropes 132, correspondingly, two through holes 1331 are provided on the fixing block 133, and the two towing ropes 132 are respectively placed in the two through holes 1331, as Figures 8 to 10 shown.

[0067] In some embodiments, in order to protect the towing rope 132, a sleeve 134 is further provided outside the towing rope 132, as Figure 8 shown. The inner diameter of the through hole 1331 is greater than the outer diameter of the towing rope 132; or for the part of the towing rope 132 where the sleeve 134 is provided outside, the inner diameter of the through hole 1331 is greater than the outer diameter of the sleeve 134, so that the towing rope 132 and the fixing block 133 can slide relative to each other.

[0068] In some embodiments, when the fixing block 133 is engaged with the clamping groove 111, the height of the through hole 1331 on the fixing block 133 is less than the height at the end face of the clamping groove 111, and the distance between the towing rope 132 and the inner wall of the first housing 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 housing 110. With such a setting position of the through hole 1331, after the fixing block 133 is engaged with the clamping groove 111, the towing rope 132 is located on the side of the first clamping block 1111 and the second clamping block 1112 away from the inner wall of the first housing 110. As Figure 3 shown, the towing rope 132 is located in front of the first clamping block 1111 and the second clamping block 1112. On the one hand, during the movement of the towing rope 132, it is beneficial to maintain the stability of the fixing block 133; on the other hand, it also helps to reduce the height of the fixing block 133 and save the internal space of the accommodation cavity 140.

[0069] In some embodiments, the through hole 1331 is of 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; the part with a smaller inner diameter in the through hole 1331 is used to accommodate the towing rope 132, as Figure 11 and Figure 12 shown.

[0070] In some embodiments, the part of the through hole 1331 for assembling the towing rope 132 is of a conical structure, as Figures 11 to 13As shown. From the side close to the traction wheel 131 to the side far from the traction wheel 131, the inner diameter of the conical structure gradually decreases, as Figures 11 to 13 shown.

[0071] Due to the large size of the traction wheel 131, the distance between the two traction ropes 132 on the side close to the traction wheel 131 is greater than the distance between the two traction ropes 132 on the side close to the fixed block 133. During the movement of the traction ropes 132, friction occurs between the traction ropes 132 and the entrance of the through hole 1331 (the entrance is the side where the traction ropes 132 enter the through hole 1331). After long-term use, the traction ropes 132 have a risk of breakage.

[0072] In this embodiment, the part of the through hole 1331 for assembling the traction ropes 132 is a conical structure, which helps to reduce the friction between the traction ropes 132 and the through hole 1331 during the movement of the traction ropes 132, thereby improving the service life of the traction ropes 132.

[0073] This embodiment also provides an endoscope.

[0074] The endoscope of this embodiment includes a handle 10 and an insertion part 20. The insertion part 20 is connected to the handle 10, as Figure 1 shown. The handle 10 is the endoscope handle of any one of the technical solutions in this embodiment.

[0075] The endoscope of this embodiment has the advantages that the space occupied by the traction ropes 132 and their support seats in the handle 10 is small, and the structural layout in the accommodation cavity 140 is reasonable.

[0076] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the methods and devices in the embodiments of the present application are 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 be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0077] The above are only the specific embodiments 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. An endoscope handle, characterized in that: The invention comprises a first shell (110), a second shell (120) and a traction mechanism, wherein the first shell (110) and the second shell (120) are connected to each other to form a receiving cavity (140), and the traction mechanism is located in the receiving 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 to the active bending section of the endoscope, and the proximal end is connected to the traction wheel (131); the traction rope (132) is also slidably disposed in the fixed block (133). A clamping groove (111) is provided on the inner side wall of the first shell (110), the clamping groove (111) is clamped with the fixing block (133), and the traction rope (132) located at the proximal end of the fixing block (133) is offset in the accommodating cavity (140).

2. The endoscope handle according to claim 1, characterized in that: The first shell (110) and the second shell (120) are also provided with a limiting assembly, and when the fixing block (133) is clamped with the clamping groove (111), the limiting assembly is used to limit the fixing block (133) in the axial direction and radial direction of the accommodating cavity (140).

3. The endoscope handle according to claim 2, characterized in that: The limiting assembly comprises a first limiting block (151) and a second limiting block (152), wherein 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). When the fixing 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 against the lower end surface and the upper end surface of the fixing block (133).

4. The endoscope handle according to claim 2, characterized in that: A first clamping block (1111) and a second clamping block (1112) are provided on the inner side wall of the first shell (110); the first clamping block (1111) and the second clamping block (1112) are arranged at an interval 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 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), or 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).

5. The endoscope handle according to claim 4, characterized in that: The first clamping block (1111) and the second clamping block (1112) are of T-shaped structure, and the protrusions of the first clamping block (1111) and the second clamping block (1112) facing the clamping groove (111) are formed as the third limiting block (153); The limiting grooves (154) are provided on both sides of the fixing block (133), and the height of the limiting grooves (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 grooves (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 according to claim 4, characterized in that: Chamfers (1113) are provided at the end surfaces of the first clamping block (1111) and the second clamping block (1112), and on the sides of the first clamping block (1111) and the second clamping block (1112) facing the clamping groove (111).

7. The endoscope handle according to claim 4, characterized in that: The limiting assembly further comprises a fourth limiting block (155), wherein the fourth limiting block (155) 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 a side of the fixing block (133) close to the first shell (110).

8. The endoscope handle according to any one of claims 1 to 7, characterized in that: The fixing block (133) is provided with a through hole (1331), and the traction rope (132) is slidably arranged in the through hole (1331). When the fixing block (133) is engaged with the engaging groove (111), The height of the through hole (1331) on the fixing block (133) is smaller than the height of the end surface of the clamping groove (111), and the distance between the traction rope (132) and the inner wall of the first shell (110) is larger 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 according to claim 8, characterized in that: The portion of the through hole (1331) used to assemble the traction rope (132) is a conical structure, and the inner diameter of the conical structure gradually decreases from a side close to the traction wheel (131) to a side far from the traction wheel (131).

10. An endoscope, characterized in that: The invention comprises a handle (10) and an insertion portion (20), wherein the handle (10) is the endoscope handle according to any one of claims 1 to 9, and the insertion portion (20) is connected to the handle (10).

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