Shell, endoscope handle and endoscope

Abstract

The utility model provides a shell, an endoscope handle and an endoscope, and belongs to the technical field of endoscopes. The shell is provided with an operation hole, the operation hole penetrates through the shell wall of the shell, the operation hole is communicated with the interior of the shell, and the operation hole is used for allowing a shifting rod connected with a traction wheel to penetrate through; the interior of the shell comprises a traction wheel mounting space, the traction wheel mounting space is used for mounting a traction wheel, the shell is further provided with a shielding part extending towards the traction wheel mounting space, and the shielding part is located at the end of the rotating path of the shifting rod. The shielding part is arranged, so that the size of a gap between the inner wall of the shell and the traction wheel is reduced, the probability that impurities enter the shell through the operation hole is reduced, the traction wheel is prevented from being influenced by the impurities in the rotating process, meanwhile, the sight line from the exterior of the shell to the interior of the shell can be shielded, and the practicability is high. And the internal structure of the shell is prevented from being directly observed, so that the overall aesthetic property of the endoscope handle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of endoscopes, and in particular relates to a shell, an endoscope handle and an endoscope. Background Art

[0002] As a medical diagnostic device, an endoscope can enter the body and take images of lesions, providing doctors with sufficient diagnostic information to treat diseases.

[0003] The endoscope includes an insertion portion, a traction rope and a traction wheel, wherein the traction rope is connected between the insertion portion and the traction wheel, and the traction wheel is rotated to pull the traction rope to control the bending angle of the insertion portion. The traction wheel is installed in the handle housing of the endoscope, and the traction wheel is connected to a lever, and part of the lever passes through the housing and is located outside the housing. The operator controls the rotation of the traction wheel by toggling the lever.

[0004] However, in actual use, the user can easily see the internal structure through the lever perforation on the shell, which has poor aesthetics, and external impurities can easily enter the handle, hindering the normal rotation of the traction wheel. Utility Model Content

[0005] The purpose of this application is to provide a shell, an endoscope handle and an endoscope to solve the above-mentioned technical problems existing in the prior art.

[0006] This application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a shell, which is applied to an endoscope handle, and the shell has an operating hole, which passes through the shell wall of the shell and is connected to the interior of the shell, and the operating hole is used for a lever connected to a traction wheel to pass through; the interior of the shell includes a traction wheel installation space, and the traction wheel installation space is used to install the traction wheel. The shell is also provided with a shielding portion extending toward the traction wheel installation space, and the shielding portion is located at the end of the rotation path of the lever.

[0008] In a second aspect, an embodiment of the present application provides an endoscope handle, comprising the shell provided in the embodiment of the first aspect, a traction wheel is rotatably installed in the shell, the traction wheel is connected to a lever, and part of the lever passes through an operating hole and is located outside the shell.

[0009] In a third aspect, an embodiment of the present application provides an endoscope, including the endoscope handle provided in the embodiment of the second aspect.

[0010] The technical solution provided by this application can achieve the following beneficial effects:

[0011] In the present application, a shielding portion is provided on the shell, and the shielding portion is extended toward the traction wheel installation space in the shell, thereby reducing the size of the gap between the inner wall of the shell and the traction wheel, reducing the probability of impurities entering the shell through the operating hole, and avoiding the rotation process of the traction wheel from being affected by the impurities; at the same time, the gap between the inner wall of the shell and the traction wheel is reduced, which can also block the line of sight from the outside of the shell to the inside of the shell, avoiding direct observation of the structure inside the shell, thereby improving the overall aesthetics of the endoscope handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 is a schematic diagram of the overall structure of a housing provided in some embodiments of the present application;

[0014] Figure 2 is a schematic diagram of the internal structure of a housing provided in some embodiments of the present application;

[0015] Figure 3 is a partial cross-sectional view of a housing provided in some embodiments of the present application;

[0016] Figure 4 This application is about Figure 3 Detailed view of point A;

[0017] Figure 5 The internal structure of the endoscope handle provided in some embodiments of the present application is shown in FIG. Figure 1 ;

[0018] Figure 6 This application is about Figure 5 Detail of point B;

[0019] Figure 7 The internal structure of the endoscope handle provided in some embodiments of the present application is shown in FIG. Figure 2 ;

[0020] Figure 8 This application is about Figure 7 Detailed view of point C;

[0021] Fig. 9 It is a schematic diagram of the coordination of the traction wheel, the traction rope and the lever provided in some embodiments of the present application;

[0022] Fig.10It is a schematic diagram of the overall structure of the suction valve provided in some embodiments of the present application.

[0023] In the figure: 100-shell, 110-operating hole, 121-first limiting groove, 122-second limiting groove, 130-upper shell, 140-lower shell, 200-shielding part, 210-first blocking section, 220-second blocking section, 230-first sub-section, 231-clamping groove, 240-second sub-section, 241-clamping protrusion, 300-traction wheel, 310-wheel body, 311-avoidance gap, 320-placing structure, 321-accommodating space, 400-dial rod, 500-suction valve, 510-valve body, 520-negative pressure nozzle, 521-first limiting protrusion, 522-second limiting protrusion, 600-traction rope. DETAILED DESCRIPTION

[0024] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0025] In the endoscope handle, the traction wheel is rotatably installed inside the shell, the shell is provided with a through hole, the traction wheel is connected with a lever, and part of the lever passes through the through hole and is located outside the shell. The traction wheel is roughly circular in structure. In order to ensure that there is sufficient assembly space inside the shell, the shape of the shell does not adapt to the shape of the traction wheel, and does not change with the change of the shape of the traction wheel. The wall surface of the shell is set as smooth as possible to facilitate the assembly of the internal components of the shell. Therefore, after the traction wheel is installed in the shell, the distance between the part where the traction wheel and the lever are connected to the inner wall of the shell is the shortest, and as the circumferential side wall of the traction wheel bends, the gap between the inner wall of the shell and the traction wheel will become larger and larger, causing external impurities to easily pass through the operating hole and enter the inside of the shell through the gap between the shell and the traction wheel, affecting the rotation of the traction wheel; and the gap is too large to prevent the line of sight from the outside to the inside of the shell, affecting the overall aesthetics of the endoscope handle.

[0026] In view of this, the present application embodiment provides a housing 100, which is applied to an endoscope handle, referring to Figures 1 to 4 As shown, by providing the shielding portion 200, the gap between the housing 100 and the traction wheel 300 is reduced, thereby preventing impurities from entering the housing 100 and ensuring the aesthetics of the endoscope handle.

[0027] The housing 100 provided in the embodiment of the present application is a hollow structure. The housing wall of the housing 100 is provided with an operation hole 110. The operation hole 110 penetrates through the housing wall of the housing 100 and is communicated with the interior of the housing 100. Figure 1 and Figure 2As shown, the operation hole 110 is used for the lever 400 connected to the traction wheel 300 to pass through. The operator can control the traction wheel 300 connected to the lever 400 to rotate by driving the lever 400. The lever 400 rotates synchronously with the traction wheel 300, wherein the lever 400 rotates in the operation hole 110. When the lever 400 is moved to abut against the edge of the operation hole 110, the lever 400 cannot continue to rotate, and the lever 400 reaches one of the end points of its rotation path.

[0028] The housing 100 includes a traction wheel installation space inside, and the traction wheel installation space is used to install the traction wheel 300. The housing 100 is also provided with a shielding portion 200 extending toward the traction wheel installation space inside the housing 100. Figure 1 and Figure 2 As shown. The traction wheel installation space refers to the space inside the housing 100 for installing the traction wheel 300, and its size and shape are the same as the corresponding traction wheel 300 to be installed. The shielding portion 200 extends toward the traction wheel installation space, and the shielding portion 200 can shield part of the gap between the housing 100 and the traction wheel 300, thereby reducing the size of the gap between the housing 100 and the traction wheel 300. After the gap is reduced, the probability of impurities entering the housing 100 from the gap through the operating hole 110 is reduced, and the shielding portion 200 can also block the line of sight from the outside of the housing 100 to the inside of the housing 100, avoiding direct observation of the structure inside the housing 100, thereby improving the overall aesthetics of the endoscope handle.

[0029] The shielding portion 200 is located at the end of the rotation path of the lever 400. The gaps at both ends of the rotation path of the lever 400 are larger, and impurities are more likely to fall in. In addition, the two ends of the rotation path are more likely to expose the components in the housing 100, which has a greater impact on the aesthetics. Therefore, the shielding portion 200 is set at the end of the rotation path of the lever 400, and the shielding effect of the shielding portion 200 can be fully exerted. The shielding portion 200 can be set at either end of the rotation path of the lever 400, or the shielding portion 200 can be set at both ends of the rotation path of the lever 400.

[0030] The shielding portion 200 is actually a protruding structure extending from the inner wall of the housing 100 toward the traction wheel installation space. The shielding portion 200 can be set separately from the housing 100, and the shielding portion 200 is manufactured separately. The shielding portion 200 is fixed to the inner wall of the housing 100 during the assembly process. The shielding portion 200 can also be integrally formed with the housing 100. The shielding portion 200 can be located at the edge of the operating hole 110 without affecting the rotation operation of the lever 400. At the same time, when the size of the shielding portion 200 remains unchanged, the closer it is to the operating hole 110, the more gaps between the housing 100 and the traction wheel 300 can be shielded, and the better the shielding effect.

[0031] In some preferred embodiments, the shielding portion 200 is arranged to extend radially along the traction wheel installation space. The traction wheel installation space is used to install the traction wheel 300. Therefore, the axial direction, radial direction and circumferential direction of the traction wheel 300 assembled in the housing 100 can be used as the axial direction, radial direction and circumferential direction of the traction wheel installation space. Under such a layout, when shielding a gap of the same size, the size of the shielding portion 200 can be minimized to reduce the manufacturing cost of the shielding portion 200.

[0032] One end of the shielding portion 200 is fixed to the housing 100, and the other end is a free end. Compared with the end connected to the housing 100, the free end has a longer force arm when subjected to force, and the structure of the free end is more easily damaged. In some embodiments of the present application, the shielding portion 200 includes a first shielding segment 210 and a second shielding segment 220. Figure 2 As shown. One end of the first shielding segment 210 is connected to the shell 100, and the other end is connected to the second shielding segment 220, wherein the first shielding segment 210 is extended toward the traction wheel installation space inside the shell 100, and the second shielding segment 220 is extended along the circumference of the traction wheel installation space. The first shielding segment 210 mainly plays the role of shielding the gap, and the second shielding segment 220 is connected to the first shielding segment 210 to avoid the first shielding segment 210 from having a free end, improve the structural strength of the first shielding segment 210, and avoid damage to the end of the first shielding segment 210 away from the inner wall of the shell 100. In addition, the second shielding segment 220 extends along the circumference of the traction wheel installation space, as close to the traction wheel 300 as possible, so as to avoid occupying other spaces inside the shell 100 and avoid affecting the layout inside the shell 100.

[0033] In some preferred embodiments, in order to improve the shielding effect of the shielding portion 200, along the width direction of the operating hole 110, the width dimension of the operating hole 110 is set to be smaller than the width dimension of the shielding portion 200, and the operating hole 110 is located between the two ends of the shielding portion 200 in the width direction, that is, both ends of the shielding portion 200 protrude from the edge of the operating hole 110, thereby improving the shielding effect of the operating hole 110 and preventing impurities entering from the operating hole 110 from directly entering the interior of the housing 100 from both sides of the shielding portion 200. The shielding portion 200 protruding from the edge of the operating hole 110 can be fixedly connected to the inner wall of the housing 100, or can be directly attached to the inner wall of the housing 100, as long as a gap is avoided between the shielding portion 200 and the inner wall of the housing 100.

[0034] During the assembly process of the housing 100, in order to facilitate the installation of various components in the housing 100, the housing 100 generally includes an upper housing 130 and a lower housing 140 disposed opposite to each other. Figure 1 and Figure 3As shown, the upper shell 130 and the lower shell 140 can be snapped together. When the upper shell 130 and the lower shell 140 are separated, the internal space of the shell 100 can be exposed, which is convenient for installing various components into the shell 100. A part of the operation hole 110 is located in the upper shell 130, and the other part is located in the lower shell 140. The upper shell 130 and the lower shell 140 are assembled to form a complete operation hole 110. A part of the operation hole 110 refers to a part of the edge of the operation hole 110.

[0035] The shielding portion 200 includes a first sub-portion 230 and a second sub-portion 240 arranged along the assembly direction of the upper shell 130 and the lower shell 140. The first sub-portion 230 is fixed to the upper shell 130, and the second sub-portion 240 is fixed to the lower shell 140. A snap-in groove 231 is provided on the side of the first sub-portion 230 facing the second sub-portion 240. The second sub-portion 240 has a snap-in protrusion 241 corresponding to the snap-in groove 231. The snap-in protrusion 241 is snap-into the snap-in groove 231. Moreover, the second sub-portion 240 is located as a whole on the side of the first sub-portion 230 away from the traction wheel installation space. The second sub-portion 240 is arranged closer to the inner wall of the shell 100 relative to the snap-in groove 231. Figure 3 and Figure 4 shown.

[0036] In order to facilitate the operator to grasp, the wall surface of the housing 100 is a curved surface, and the second sub-section 240 is fixed to the lower housing 140, so that the assembly gap between the second sub-section 240 and the lower housing 140 can be avoided. In addition, since the second sub-section 240 is entirely arranged on the side of the first sub-section 230 away from the traction wheel installation space, the assembly gap between the shielding part 200 and the lower housing 140 can be transferred to between the second sub-section 240 and the first sub-section 230. However, since the assembly between the first sub-section 230 and the second sub-section 240 is not limited by the shape of the wall surface of the housing 100, the assembly accuracy requirements between the first sub-section 230 and the second sub-section 240 can be reduced, and correspondingly, the processing requirements of the first sub-section 230 and the second sub-section 240 can also be reduced, and the required processing cost is correspondingly reduced.

[0037] The embodiment of the present application also provides an endoscope handle, including the housing 100 provided in any of the above embodiments, wherein a traction wheel 300 is installed inside the housing 100, and the traction wheel 300 is connected to a lever 400, wherein part of the lever 400 is located inside the housing 100, and part of the lever 400 passes through the operating hole 110 of the housing 100 and is located outside the housing 100, serving as a receiving component to withstand external forces, as shown in FIG. Figures 5 to 8The shielding portion 200 is extended toward the position of the traction wheel 300. It should be noted that the shielding portion 200 is not in direct contact with the traction wheel 300. There is always a gap between the shielding portion 200 and the traction wheel 300, so as to ensure that the traction wheel 300 will not be blocked by the shielding portion 200 during the rotation process. Figure 7 and Figure 8 shown.

[0038] The traction wheel 300 includes a wheel body 310, which is the main part of the traction wheel 300 and is connected to the lever 400 and the housing 100. The lever 400 is connected to the wheel body 310, so the part of the wheel body 310 connected to the lever 400 is exposed in the range corresponding to the operation hole 110. After the external impurities enter the operation hole 110, they can only fall into the housing 100 through the gap between the wheel body 310 and the inner wall of the housing 100. In the embodiment of the present application, a shielding portion 200 is provided to extend toward the wheel body 310 to shield the gap between the wheel body 310 and the inner wall of the housing 100, so as to make full use of the shielding portion 200 and improve the shielding effect.

[0039] During the rotation of the lever 400, the area corresponding to the wheel body 310 and the operating hole 110 is constantly changing. In some embodiments of the present application, during the entire rotation of the lever 400, the projection surface of the operating hole 110 along its axial direction is located on the circumferential side wall of the wheel body 310, that is, the connection channel between the inside of the housing 100 and the external environment formed by the operating hole 110 is always blocked by the circumferential side wall of the wheel body 310, thereby preventing impurities or sight lines from directly passing through the operating hole 110 and entering the inner wall of the housing 100. In a specific embodiment, the circumferential size of the wheel body 310 should not be too small. If the circumferential size of the wheel body 310 is too small, as the wheel body 310 rotates, it is easy to cause the notch position of the wheel body 310 to be exposed within the range corresponding to the operating hole 110, resulting in the wheel body 310 being unable to block the operating hole 110. Generally, when the wheel body 310 is in the initial position, that is, when the bending angle of the insertion portion corresponding to the traction wheel 300 is 0, at both ends of the operating hole 110, the circumferential dimensions of the portion of the wheel body 310 not exposed to the operating hole 110 are greater than or equal to the circumferential dimensions of the portion of the wheel body 310 exposed to the operating hole 110.

[0040] In some preferred embodiments, a side of the wheel body 310 away from the lever 400 is provided with an avoidance notch 311, Fig. 9As shown, the avoidance notch 311 is mainly used to avoid the suction valve 500 located in the housing 100, optimize the internal layout of the housing 100, and improve the rationality of the layout of various components in the housing 100. The avoidance notch 311 is arranged on the side of the wheel body 310 away from the lever 400, which will not affect the shielding of the operation hole 110 by the wheel body 310, and can also save the layout space in the housing 100. In addition, due to the reduced size of the wheel body 310, the raw materials required in its manufacturing process are reduced, and the material cost is also reduced.

[0041] The traction wheel 300 includes a wheel body 310 and a placement structure 320. Figures 5 to 9 As shown. The placement structure 320 and the wheel body 310 are arranged along the rotation axis direction of the traction wheel 300. Since the shielding part 200 corresponds to the wheel body 310, the placement structure 320 parallel to the shielding part 200 does not correspond to the shielding part 200. The placement structure 320 is connected to the traction rope 600, and the shielding part 200 will not affect the normal movement of the traction rope 600. Figure 5 and Figure 6 The placement structure 320 is generally provided with a receiving space 321, referring to Fig. 9 As shown, the accommodating space 321 is used to install the traction rope 600 and limit the traction rope 600. In addition, the central angle of the placement structure 320 needs to be greater than or equal to 180 degrees, which is convenient for installing the traction rope 600 and for controlling the movement of the traction rope 600 by rotating it. The central angle of the placement structure 320 also needs to be less than or equal to 200 degrees to avoid the central angle of the placement structure 320 being too large and occupying too much internal space of the housing 100.

[0042] Compared with the wheel body 310, the radial dimension of the placement structure 320 is smaller than the radial dimension of the wheel body 310. Fig. 9 The radial dimension of the wheel body 310 is slightly larger, so that the wheel body 310 can be as close to the operating hole 110 as possible, thereby reducing the gap between the wheel body 310 and the housing 100. The radial dimension of the placement structure 320 is slightly smaller, so that the traction rope 600 connected to the placement structure 320 can be slightly farther away from the wall of the housing 100, so that the traction rope 600 is farther away from the inner wall of the housing 100, avoiding the structure of the housing 100 from hindering the movement of the traction rope 600.

[0043] A negative pressure nozzle 520 is also installed in the housing 100. In order to save the installation space inside the housing 100, the negative pressure nozzle 520 is arranged adjacent to the traction wheel 300. The negative pressure nozzle 520 is a part of the suction valve 500. The suction valve 500 also includes a valve body 510. Figures 5 to 8 As shown, the negative pressure nozzle 520 is in communication with the valve body 510 .

[0044] One of the housing 100 and the negative pressure nozzle 520 is provided with a first limiting groove 121, and the other is provided with a first limiting protrusion 521, which can be snapped into the first limiting groove 121, so that the first limiting protrusion 521 and the first limiting groove 121 are limited in the first direction. The first direction is the assembly direction of the negative pressure nozzle 520 and the valve body 510 of the suction valve 500 in the housing 100. The first direction can be referred to Fig.10 As shown in the dashed line dd direction, the negative pressure nozzle 520 and the valve body 510 are assembled along the dashed line dd direction.

[0045] One of the housing 100 and the negative pressure nozzle 520 is also provided with a second limiting groove 122, and the other is also provided with a second limiting protrusion 522, which can be snapped into the second limiting groove 122, so that the second limiting protrusion 522 and the second limiting groove 122 are limited in the second direction. The second direction is in the same plane as the first direction, and the angle between the two directions is not equal to 180 degrees, so as to avoid the first direction and the second direction being two directions set opposite to each other. The second direction can refer to Fig.10 The dotted line ee direction is shown.

[0046] The shell 100 and the negative pressure nozzle 520 cooperate with each other in the first direction and the second direction to prevent the negative pressure nozzle 520 from moving within the plane where the first direction and the second direction are located, thereby stabilizing the installation position of the negative pressure nozzle 520 and ensuring that the negative pressure nozzle 520 can be used normally and the suction valve 500 can operate normally.

[0047] The first limiting groove 121 and the second limiting groove 122 can be arranged on the tube wall of the negative pressure nozzle 520, or on the shell wall of the shell 100. When they are on the shell wall of the shell 100, in order to avoid the limiting groove from damaging the structural group groove of the shell 100, the wall thickness of the shell 100 where the limiting groove is arranged can be thickened. Figure 2 and Figure 3 shown.

[0048] In some preferred embodiments, the first limiting protrusion 521 and the second limiting protrusion 522 can be connected to form an integral structure, referring to Fig.10 As shown, the first limiting groove 121 and the second limiting groove 122 are also connected to form an integral structure, which is convenient for manufacturing and also convenient for assembling the negative pressure nozzle 520 and the housing 100.

[0049] The present application also provides an endoscope, including the endoscope handle provided in any of the above embodiments. The endoscope in the embodiments of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not specifically limit the type of the endoscope.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A housing, applied to an endoscope handle, characterized in that: The housing (100) has an operating hole (110), the operating hole (110) passes through the housing wall of the housing (100), the operating hole (110) is communicated with the interior of the housing (100), and the operating hole (110) is used for a shifting rod (400) connected to the traction wheel (300) to pass through; The housing (100) comprises a traction wheel installation space inside, the traction wheel installation space is used to install a traction wheel (300), the housing (100) is also provided with a shielding portion (200) extending toward the traction wheel installation space, the shielding portion (200) is located at the end of the rotation path of the shifting rod (400).

2. A housing according to claim 1, characterized in that: The shielding portion (200) is arranged to extend radially along the traction wheel installation space.

3. A housing according to claim 1, characterized in that: The shielding portion (200) comprises a first shielding segment (210) and a second shielding segment (220); one end of the first shielding segment (210) is connected to the housing (100), and the other end is connected to the second shielding segment (220); the first shielding segment (210) is extended toward a traction wheel installation space inside the housing (100), and the second shielding segment (220) is extended along the circumference of the traction wheel installation space.

4. A housing according to claim 1, characterized in that: Along the width direction of the operating hole (110), the width dimension of the operating hole (110) is smaller than the width dimension of the shielding portion (200), and the operating hole (110) is located between the two ends of the shielding portion (200) in the width direction; the shielding portion (200) is in contact with the inner wall of the housing (100).

5. A housing according to claim 4, characterized in that: The housing (100) comprises an upper housing (130) and a lower housing (140) arranged opposite to each other, a portion of the operating hole (110) is located in the upper housing (130), and another portion is located in the lower housing (140); The shielding portion (200) comprises a first sub-portion (230) and a second sub-portion (240) arranged along the assembly direction of the upper shell (130) and the lower shell (140), the first sub-portion (230) being fixed to the upper shell (130), and the second sub-portion (240) being fixed to the lower shell (140); A clamping groove (231) is provided on a side of the first sub-section (230) facing the second sub-section (240); the second sub-section (240) has a clamping protrusion (241) corresponding to the clamping groove (231); the clamping protrusion (241) is clamped into the clamping groove (231); and the second sub-section (240) is located on a side of the first sub-section (230) away from the traction wheel installation space.

6. An endoscope handle, characterized in that: The invention comprises a housing (100) as claimed in any one of claims 1 to 5, wherein a traction wheel (300) is rotatably mounted inside the housing (100), the traction wheel (300) is connected to a lever (400), and a portion of the lever (400) passes through the operating hole (110) and is located outside the housing (100).

7. An endoscope handle according to claim 6, characterized in that: The traction wheel (300) comprises a wheel body (310), the wheel body (310) is connected to the shifting rod (400), the shielding portion (200) extends toward the wheel body (310), and during the rotation of the shifting rod (400), the projection surface of the operating hole (110) along its axial direction is located on the circumferential side wall of the wheel body (310).

8. An endoscope handle according to claim 7, characterized in that: A side of the wheel body (310) away from the shifting rod (400) is provided with an avoidance notch (311), and the avoidance notch (311) is used to avoid a suction valve (500) located in the housing (100); And / or, the traction wheel (300) further comprises a placement structure (320), the placement structure (320) and the wheel body (310) are arranged along the rotation axis direction of the traction wheel (300), the placement structure (320) has an accommodation space (321), the accommodation space (321) is used to install the traction rope (600), and the central angle corresponding to the placement structure (320) is greater than or equal to 180 degrees and less than or equal to 200 degrees; And / or, the traction wheel (300) further comprises a placement structure (320), the placement structure (320) and the wheel body (310) are arranged along the rotation axis direction of the traction wheel (300), the placement structure (320) has an accommodation space (321), the accommodation space (321) is used to install the traction rope (600), and the corresponding radial dimension of the placement structure (320) is smaller than the corresponding radial dimension of the wheel body (310).

9. The endoscope handle according to claim 6, characterized in that: A negative pressure nozzle (520) is also installed in the housing (100), and the negative pressure nozzle (520) is arranged adjacent to the traction wheel (300); One of the housing (100) and the negative pressure nozzle (520) is provided with a first limiting groove (121), and the other is provided with a first limiting protrusion (521), and the first limiting protrusion (521) can be snapped into the first limiting groove (121) so that the first limiting protrusion (521) and the first limiting groove (121) are matched in a first direction for limiting positioning, and the first direction is the assembly direction of the negative pressure nozzle (520) and the valve body (510) of the suction valve (500) in the housing (100); One of the shell (100) and the negative pressure nozzle (520) is provided with a second limiting groove (122), and the other is provided with a second limiting protrusion (522), and the second limiting protrusion (522) can be snapped into the second limiting groove (122) so that the second limiting protrusion (522) and the second limiting groove (122) are limitedly matched in a second direction, and the first direction and the second direction are in the same plane, and the angle between the first direction and the second direction is not equal to 180 degrees.

10. An endoscope, characterized in that: The endoscope handle comprises the endoscope handle as described in any one of claims 6-9.

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