Endoscope handle and endoscope having the same
By setting a limiting part on the endoscope handle to restrict the rotation range of the rotating wheel, the problems of loss of vision and breakage of traction wire caused by improper operation by medical staff are solved, and more stable endoscope operation is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU LANCETINC MEDICAL TECH CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-07-24
Smart Images
Figure CN224540186U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to an endoscope handle and an endoscope having the same handle. Background Technology
[0002] Endoscopes are widely used in the medical field, allowing healthcare professionals to examine internal tissues. An endoscope typically consists of a handle housing, a lever, a rotating wheel, an insertion section, and a display device. The lever and rotating wheel are usually located at the proximal end of the handle housing, while the insertion section is located at the distal end. The distal end of the insertion section has a flexible portion, which is connected to the rotating wheel via a traction cable. During operation, the healthcare professional moves the lever to rotate the rotating wheel. This rotation pulls the traction cable, causing the flexible portion of the insertion section to bend to a certain extent, facilitating better observation of the target tissue.
[0003] Medical staff may not be able to control the force of rotating the wheel properly during operation, which may cause the wheel to rotate too much, resulting in an excessively large bending angle at the distal end of the insertion part. In this case, the operator may lose the field of vision of the target area and be unable to clearly determine the specific position that the lens is pointing at. Utility Model Content
[0004] Therefore, it is necessary to provide an endoscope handle and an endoscope with it to address the problem that medical staff may not be able to control the force of rotating the wheel during operation, which may easily cause the wheel to rotate too much and thus cause the operator to lose the field of vision of the target area.
[0005] To address the aforementioned technical problems, this application provides an endoscope handle, including a handle housing and a rotary wheel disposed at the proximal end of the handle housing. The rotary wheel includes a main body and a first limiting part. The main body has a first end face and a second end face facing away from each other. The first limiting part is formed on the first end face. A second limiting part is disposed on the inner wall of the handle housing. The second limiting part is used to cooperate with the first limiting part to limit the rotation amplitude of the rotary wheel.
[0006] The application of this application has the following beneficial effects: a first limiting part is formed on the rotating wheel, and a second limiting part is provided on the inner wall of the handle housing. By cooperating with the first limiting part, the rotation range of the rotating wheel relative to the handle housing can be limited, thereby preventing the distal end of the insertion part from having an excessively large bending angle and avoiding the problem of the operator losing sight of the target part.
[0007] In one embodiment, two first limiting parts are provided, and one second limiting part is provided, with the two first limiting parts located on both sides of the second limiting part.
[0008] In one embodiment, the included angle between the two first limiting portions is a selected value between 30° and 180°.
[0009] In one embodiment, the inner wall of the handle housing is provided with reinforcing ribs, and the second limiting portion is integrally formed with the reinforcing ribs.
[0010] In one embodiment, the wheel further includes a first adapter portion disposed on the first end face, the first adapter portion being spaced apart from the first limiting portion; the inner wall of the handle housing is also provided with a first annular flange, the first annular flange being rotatably sleeved outside the first adapter portion, the first annular flange extending into the gap between the first limiting portion and the first adapter portion and having a gap with the first limiting portion.
[0011] In one embodiment, both the first limiting portion and the second limiting portion are plate-shaped, and both the first limiting portion and the second limiting portion are perpendicular to the tangent of the outer ring of the first annular flange.
[0012] In one embodiment, the inner wall of the handle housing is further provided with a second annular flange, the second annular flange is located inside the first annular flange and a first transition groove is formed between the two, the first transition part is annular and is rotatably inserted into the first transition groove.
[0013] In one embodiment, the endoscope handle further includes a stop ring disposed in the first adapter groove. The stop ring is sandwiched between the end face of the first adapter and the bottom wall of the first adapter groove, and the stop ring is used to limit the rotation of the wheel relative to the handle housing by friction.
[0014] In one embodiment, the handle housing includes a first half-shell and a second half-shell, which are detachably connected and enclose a cavity, and a rotating wheel is disposed in the cavity; a first annular flange and a second limiting portion are both formed on the inner wall of the first half-shell, and the rotating wheel also includes a second adapter portion formed on the second end face, and a second adapter groove is provided on the inner wall of the second half-shell, and the second adapter portion is rotatably inserted into the second adapter groove.
[0015] In one embodiment, the rotary wheel is a first rotary wheel, and the endoscope handle also includes a second rotary wheel coaxially arranged with the first rotary wheel; the handle housing includes a first half-shell and a second half-shell, the first half-shell and the second half-shell are detachably connected and surround to form a cavity, and the rotary wheel and the second rotary wheel are both disposed in the cavity; the rotary wheel also includes a second transition portion formed on a second end face; a second transition groove is provided on the second rotary wheel or a partition is provided between the first rotary wheel and the second rotary wheel, and a second transition groove is provided on the partition; the second transition portion is rotatably inserted into the second transition groove.
[0016] To address the aforementioned technical problems, this application also provides an endoscope, including an insertion portion. The endoscope further includes an endoscope handle as described in any of the above technical solutions, wherein the insertion portion is disposed at the distal end of the handle housing as a traction cable. The beneficial effects of the endoscope provided by this application are similar to those of the aforementioned endoscope handle, and will not be repeated here. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of an endoscope handle provided in an embodiment of this application;
[0018] Figure 2 Explosion of the endoscope handle Figure 1 ;
[0019] Figure 3 Explosion of the endoscope handle Figure 2 ;
[0020] Figure 4 Explosion of the endoscope handle Figure 3 ;
[0021] Figure 5 Side view of the endoscope handle;
[0022] Figure 6 For the endoscope handle along Figure 5 A cross-sectional view along the AA direction;
[0023] Figure 7 This is the front view of the endoscope handle;
[0024] Figure 8 For the endoscope handle along Figure 7 Cross-sectional view along the BB direction;
[0025] Figure 9 This is a schematic diagram showing the relative structure of the first limiting part and the second limiting part in another embodiment.
[0026] Reference numerals: 1. Handle housing; 10. First half-shell; 100. Perforation; 11. Second half-shell; 2. Rotary wheel; 20. Main body; 200. First end face; 201. Second end face; 21. First transition part; 22. First limiting part; 23. Second transition part; 24. Connecting hole; 25. Positioning rib; 3. First annular flange; 4. Second limiting part; 5. Second annular flange; 50. First transition groove; 500. Accommodating cavity; 6. Second transition groove; 7. Buckle structure; 70. Buckle; 71. Slot; 8. Lever; 80. Connecting shaft; 9. Connecting bracket; 90. Positioning groove. Detailed Implementation
[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0033] This embodiment provides an endoscope handle, such as Figures 1 to 8 As shown, the endoscope handle includes a handle housing 1 and a rotary wheel 2, with the rotary wheel 2 located at the proximal end of the handle housing 1. It is easy to understand that the aforementioned "proximal end" refers to the end closer to the operator when using an endoscope with this handle, and correspondingly, the "distal end" refers to the end farther from the operator. Figure 2 and Figure 3 As shown, the rotating wheel 2 in this embodiment includes a main body 20 and a first limiting part 22. The main body 20 has a first end face 200 and a second end face 201 facing opposite directions. The first limiting part 22 is formed on the first end face 200, and a second limiting part 4 is provided on the inner wall of the handle housing 1. The second limiting part 4 is used to cooperate with the first limiting part 22 to limit the rotation amplitude of the rotating wheel 2. By forming the first limiting part 22 on the rotating wheel 2 and providing the second limiting part 4 on the inner wall of the handle housing 1, the rotation amplitude of the rotating wheel 2 relative to the handle housing 1 can be limited by the cooperation of the second limiting part 4 and the first limiting part 22. This can prevent the distal end bending angle of the insertion part from being too large, thus avoiding the problem of the operator losing sight of the target part. In addition, in some usage scenarios, an excessively large distal end bending angle of the insertion part may also cause excessive stress on the traction wire, which may lead to the breakage of the traction wire. Therefore, by limiting the rotation amplitude of the rotating wheel 2 relative to the handle housing 1, the problem of excessive stress on the traction wire can also be avoided, thereby preventing the traction wire from breaking.
[0034] In one specific embodiment, a first limiting part 22 and a second limiting part 4 are provided. When the operator rotates the wheel 2 clockwise or counterclockwise, the first limiting part 22 and the second limiting part 4 abut against each other, thus limiting the rotation of the wheel 2. It is easy to understand that for endoscopes used in different applications, the rotation radius and required rotation amplitude of the wheel 2 vary. The relative positions of the first limiting part 22 and the second limiting part 4 can be set accordingly to meet the requirements for limiting the rotation amplitude of the wheel 2. In this embodiment, the included angle between the first limiting part 22 and the second limiting part 4 can be a selected value between 30° and 360°.
[0035] In another specific embodiment, combined with Figure 8 As shown, there are two first limiting parts 22 and one second limiting part 4, with the two first limiting parts 22 located on opposite sides of the second limiting part 4. This allows the operator to limit the rotation of the wheel 2 by having one of the first limiting parts 22 abut against one side of the second limiting part 4 when rotating the wheel 2 clockwise or counterclockwise. It is easy to understand that the required rotation amplitude of the wheel 2 varies depending on the application scenario of the endoscope, and the relative positions of the first limiting parts 22 and the second limiting part 4 can be adjusted accordingly to meet the requirements for limiting the rotation amplitude of the wheel 2. In this embodiment, the included angle between the two first limiting parts 22 is 90°. In other optional embodiments, the included angle between the two first limiting parts 22 can also be a selected value between 30° and 180°.
[0036] Of course, in other alternative embodiments, the number of first limiting parts 22 and second limiting parts 4 can also be other values. For example, in one embodiment, one first limiting part 22 can be provided, and two second limiting parts 4 can be provided, with the two second limiting parts 4 located on both sides of the first limiting part 22. Alternatively, in another embodiment, multiple first limiting parts 22 and multiple second limiting parts 4 can be provided, with the first limiting parts 22 and the second limiting parts 4 arranged alternately. Figure 9 As shown, it illustrates the design structure of the first limiting part and the second limiting part in another alternative embodiment. Specifically, in this scheme, two first limiting parts and one second limiting part are still provided, and the included angle between the two first limiting parts is also 90°, but the position of the second limiting part is different from that in this embodiment.
[0037] Furthermore, the inner wall of the handle housing 1 is provided with reinforcing ribs, and the second limiting part 4 in this embodiment is integrally formed with the aforementioned reinforcing ribs. This facilitates the manufacturing of the handle housing 1 with the second limiting part 4 in this embodiment, and at the same time, the second limiting part 4 can also serve as a reinforcing rib of the handle housing 1.
[0038] Combination Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in this embodiment, the rotating wheel 2 further includes a first transition portion 21 disposed on the first end face 200, and the first transition portion 21 is spaced apart from the first limiting portion 22. In this embodiment, the inner wall of the handle housing 1 is provided with a first annular flange 3 and a second limiting portion 4 located outside the first annular flange 3. The second limiting portion 4 is used to cooperate with the first limiting portion 22 to limit the rotation amplitude of the rotating wheel 2. Figure 6 and Figure 8 As shown, the first annular flange 3 is rotatably sleeved outside the first transition portion 21. The first annular flange 3 extends into the gap between the first limiting portion 22 and the first transition portion 21 and has a gap with the first limiting portion 22. With the above structural design, the first limiting portion 22 maintains a gap with both the first transition portion 21 and the first annular flange 3. In this way, the first limiting portion 22 will not come into contact with the first annular flange 3 during the rotation of the rotating wheel 2, avoiding friction between the two. At the same time, the axial dimensions of the first transition portion 21 and the first annular flange 3 only need to ensure stable rotational engagement. Therefore, the endoscope handle provided in this embodiment can not only limit the rotation amplitude of the rotating wheel 2 through the cooperation of the first limiting portion 22 and the second limiting portion 4, but also avoid negative impacts on the size design of the handle housing 1 and limit the force required for operation.
[0039] Furthermore, one end of the second limiting part 4 extends to the side wall of the handle housing 1, and the other end of the second limiting part 4 extends to the outer surface of the first annular flange 3. The above design facilitates the manufacturing of the second limiting part 4, which can be integrally formed during the production of the handle housing 1, and at the same time, the strength of the handle housing 1 can be enhanced by the second limiting part 4.
[0040] Furthermore, in this embodiment, both the first limiting part 22 and the second limiting part 4 are plate-shaped, and both are perpendicular to the tangent of the outer ring of the first annular flange 3. This structural design ensures that when the first limiting part 22 rotates to abut against the second limiting part 4, their surfaces are in close contact, resulting in a large contact area. This prevents excessive pressure on any part of the first limiting part 22 and the second limiting part 4, and also reduces the likelihood of deformation of the first limiting part 22 and the second limiting part 4 even after prolonged use.
[0041] In this embodiment, the rotating wheel 2 is rotatably mounted on the handle housing 1. When the rotating wheel 2 is subjected to an external force, it can rotate relative to the handle housing 1, thereby driving the traction cable connected to the rotating wheel 2 to move, and then causing the distal end of the insertion part in the endoscope to bend through the traction cable. To improve the bending control accuracy of the insertion part, the rotating wheel 2 needs to have good rotational stability relative to the handle housing 1 (the smaller the displacement of the rotating wheel 2 relative to the handle housing 1 along the radial and axial directions of the rotating wheel 2, the higher the aforementioned rotational stability; ideally, the rotating wheel 2 only rotates circumferentially relative to the handle housing 1). Therefore, in combination with... Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, a second annular flange 5 is also provided on the inner wall of the handle housing 1. The second annular flange 5 is located inside the first annular flange 3 and forms a first transition groove 50 between the two. The first transition part 21 is annular and rotatably inserted into the first transition groove 50. By cooperating with the first annular flange 3, the rotation trajectory of the first transition part 21 can be limited, thereby improving the rotational stability of the wheel 2.
[0042] In addition, the handle housing 1 in this embodiment may include a first half-shell 10 and a second half-shell 11. The first half-shell 10 and the second half-shell 11 are detachably connected and enclose a cavity, in which the rotating wheel 2 is disposed. The first annular flange 3 and the second limiting part 4 are both formed on the inner wall of the first half-shell 10, and the first half-shell 10 is also provided with a through hole 100 coaxial with the first annular flange 3. The endoscope handle also includes a lever 8, which extends into the cavity through the through hole 100 and is connected to the rotating wheel 2. The connection between the lever 8 and the rotating wheel 2 can be a fixed connection, such as adhesive bonding, or a detachable connection, such as magnetic attraction, pin connection, screw connection, or other connection methods, as long as it can enable the rotating wheel 2 to rotate when the lever 8 is turned, and the rotating wheel 2 will not significantly deviate along the axial direction of the lever 8 (which is also the axial direction of the rotating wheel 2) during the rotation. For the purpose of improving the rotational stability of the rotating wheel 2, such as Figure 2 As shown, the rotating wheel 2 in this embodiment also includes a second adapter portion 23 formed on the second end face 201. The inner wall of the second half shell 11 is provided with a second adapter groove 6, and the second adapter portion 23 is rotatably inserted into the second adapter groove 6.
[0043] In another embodiment, when the endoscope is a four-way endoscope, it includes two coaxially arranged rollers, namely a first roller and a second roller, with roller 2 being the first roller. The two rollers are arranged in the same direction, that is, the first end faces of the two rollers face the same side, and the second end faces of the two rollers face the opposite side. The handle housing 1 includes a first half-shell 10 and a second half-shell 11, which are detachably connected and enclose a cavity. Rollers 2 and 2 are both disposed within the cavity. Correspondingly, a [feature / detail] is provided on the second end face of the first roller. The aforementioned second adapter is provided, and the aforementioned second adapter groove 6 is provided on the end face of another wheel near the first wheel. Alternatively, a partition is provided between the two wheels, and the aforementioned second adapter groove 6 is provided on the partition. The second adapter 23 is rotatably inserted into the second adapter groove 6. The second adapter 23 cooperates with the second adapter groove 6 to improve the rotational stability of the wheel (the smaller the displacement of the wheel relative to the handle housing 1 along the radial and axial directions of the wheel, the higher the aforementioned rotational stability. Ideally, the wheel only rotates in the circumferential direction relative to the handle housing 1).
[0044] In this embodiment, the second transition portion 23 may include multiple arc-shaped segments disposed on the second end face 201. Correspondingly, two sets of arc-shaped protrusions are disposed on the inner wall of the second half-shell 11. Each set of protrusions has multiple protrusions. One set of protrusions is distributed circumferentially and forms a larger annular contour, while the other set of protrusions is also distributed circumferentially and forms a smaller annular contour. The annular contours formed by the two sets of protrusions are coaxial. The two sets of annular contours cooperate to form the aforementioned second transition groove 6, and the aforementioned arc-shaped segments are correspondingly inserted into the second transition groove 6. The arc-shaped segment structure design facilitates demolding during the production process. Of course, in other optional embodiments, the second transition portion 23 may also be a continuous annular structure like the first transition portion 21, and the second transition groove 6 may be formed by two coaxial annular flanges cooperating, like the first transition groove 50.
[0045] With the above design, the two sides of the rotating wheel 2 can be rotatably connected to the first adapter groove 50 and the second adapter groove 6 respectively through the first adapter 21 and the second adapter 23, thereby ensuring the rotational stability of the rotating wheel 2.
[0046] Additionally, the endoscope handle provided in this embodiment also includes a stop ring (not shown in the figure) disposed within the first adapter groove 50. The stop ring is sandwiched between the end face of the first adapter portion 21 and the bottom wall of the first adapter groove 50, and the stop ring is used to restrict the rotation of the rotating wheel 2 relative to the handle housing 1 through friction. In this embodiment, the stop ring is an O-ring made of elastic material, such as rubber, soft plastic, or silicone. Figure 6As shown, the first adapter 21 extends into the first adapter groove 50, but there is still a certain gap between the end face of the first adapter 21 and the bottom wall of the first adapter groove 50, thereby forming a receiving cavity 500 for the insertion of the stop ring between the first adapter 21 and the bottom wall of the first adapter groove 50. Since the end face of the first adapter 21 abuts against the stop ring, when the rotating wheel 2 is not driven by the operator, the friction between the stop ring and the first adapter 21 can keep the rotating wheel 2 stable. Similarly, when the lever 8 is not driven by the operator, the friction between the stop ring and the first adapter 21 can keep the lever 8 in a certain position.
[0047] In this embodiment, the first half-shell 10 and the second half-shell 11 are connected by a snap-fit structure 7. Specifically, in this embodiment, a snap-fit 70 is provided on the edge of the first half-shell 10, and a slot 71 is provided on the edge of the second half-shell 11. Guide slopes are also provided at corresponding positions. During assembly, the snap-fit 70 and slot 71 are aligned, and the first half-shell 10 and the second half-shell 11 are pressed firmly to snap them together. Alternatively, the slot 71 can be provided on the first half-shell 10, and the snap-fit 70 on the second half-shell 11. This structural design facilitates the assembly of the first half-shell 10 and the second half-shell 11. Alternatively, in other optional embodiments, the first half-shell 10 and the second half-shell 11 can also be connected together using screws.
[0048] Combination Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the lever 8 in this embodiment includes a connecting shaft 80 extending into the cavity. Specifically, a through hole 100 is provided on the first half-shell 10, and the connecting shaft 80 on the lever 8 extends into the cavity through the through hole 100. The rotating wheel 2 is provided with a connecting hole 24 adapted to the connecting shaft 80, and the connecting shaft 80 is splinedly connected to the connecting hole 24. Thus, when the operator moves the lever 8, the rotating wheel 2 can be rotated through the connecting shaft 80. At the same time, the endoscope handle provided in this embodiment also includes a connecting bracket 9 for locking and fixing the connecting shaft 80 and the rotating wheel 2. Specifically, a threaded hole is opened in the connecting shaft 80, the connecting bracket 9 is placed in the cavity, and the connecting bracket 9 is located on the side where the second end face 201 is located. The connecting shaft 80 extends from the side where the first end face 200 is located on the rotating wheel 2 and passes through the connecting hole 24 until the end face of the connecting shaft 80 abuts against the connecting bracket 9, and then the connecting bracket 9 and the connecting shaft 80 are locked and fixed with screws. With the above-mentioned structure, the rotating wheel 2 and the lever 8 can be locked and fixed by the connecting bracket 9, and the pressure of the rotating wheel 2 on the aforementioned stop ring can be controlled by the screw screwed on the connecting shaft 80.
[0049] Furthermore, in this embodiment, a positioning rib 25 is formed on the rotating wheel 2, and a positioning groove 90 that matches the positioning rib 25 is provided on the connecting bracket 9. During assembly, the positioning groove 90 on the connecting bracket 9 is aligned with the positioning rib 25 on the rotating wheel 2 and inserted, so that the two can determine the corresponding assembly docking position during assembly.
[0050] The endoscope handle provided in this embodiment can be used in an endoscope, which includes an insertion part located at the distal end of the handle housing 1.
[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0052] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An endoscope handle, characterized in that, The device includes a handle housing (1) and a rotating wheel (2) disposed near the proximal end of the handle housing (1). The rotating wheel (2) includes a main body (20) and a first limiting part (22). The main body (20) has a first end face (200) and a second end face (201) facing away from each other. The first limiting part (22) is formed on the first end face (200). The inner wall of the handle housing (1) is provided with a second limiting part (4). The second limiting part (4) is used to cooperate with the first limiting part (22) to limit the rotation amplitude of the rotating wheel (2).
2. The endoscope handle as described in claim 1, characterized in that, There are two first limiting parts (22) and one second limiting part (4), and the two first limiting parts (22) are respectively located on both sides of the second limiting part (4).
3. The endoscope handle as described in claim 2, characterized in that, The included angle between the two first limiting parts (22) is a selected value between 30° and 180°.
4. The endoscope handle as described in any one of claims 1 to 3, characterized in that, The inner wall of the handle housing (1) is provided with reinforcing ribs, and the second limiting part (4) is integrally formed with the reinforcing ribs.
5. The endoscope handle as described in any one of claims 1 to 3, characterized in that, The rotating wheel (2) further includes a first connecting part (21) disposed on the first end face (200), and the first connecting part (21) and the first limiting part (22) are disposed at a distance; The inner wall of the handle housing (1) is also provided with a first annular flange (3). The first annular flange (3) is rotatably sleeved on the outside of the first adapter (21). The first annular flange (3) extends into the gap between the first limiting part (22) and the first adapter (21) and has a gap with the first limiting part (22).
6. The endoscope handle as described in claim 5, characterized in that, The first limiting part (22) and the second limiting part (4) are both plate-shaped, and the first limiting part (22) and the second limiting part (4) are both perpendicular to the tangent of the outer ring of the first annular flange (3).
7. The endoscope handle as described in claim 5, characterized in that, The inner wall of the handle housing (1) is also provided with a second annular flange (5), the second annular flange (5) is located inside the first annular flange (3) and a first transition groove (50) is formed between the two, the first transition part (21) is annular and is rotatably inserted into the first transition groove (50). The endoscope handle also includes a stop ring disposed in the first adapter groove (50). The stop ring is sandwiched between the end face of the first adapter part (21) and the bottom wall of the first adapter groove (50), and the stop ring is used to restrict the rotation of the wheel (2) relative to the handle housing (1) by friction.
8. The endoscope handle as described in claim 5, characterized in that, The handle housing (1) includes a first half-shell (10) and a second half-shell (11), the first half-shell (10) and the second half-shell (11) are detachably connected and enclose a cavity, and the rotating wheel (2) is disposed in the cavity; The first annular flange (3) and the second limiting part (4) are both formed on the inner wall of the first half shell (10). The rotating wheel (2) also includes a second adapter part (23) formed on the second end face (201). The inner wall of the second half shell (11) is provided with a second adapter groove (6). The second adapter part (23) is rotatably inserted into the second adapter groove (6).
9. The endoscope handle as described in claim 1, characterized in that, The rotating wheel (2) is a first rotating wheel, and the endoscope handle also includes a second rotating wheel coaxially arranged with the first rotating wheel; The handle housing (1) includes a first half-shell (10) and a second half-shell (11). The first half-shell (10) and the second half-shell (11) are detachably connected and enclose a cavity. The rotating wheel (2) and the second rotating wheel are both disposed in the cavity. The wheel (2) further includes a second transition portion (23) formed on the second end face (201); The second rotating wheel is provided with a second transition groove (6) or a partition is provided between the first rotating wheel and the second rotating wheel, and the partition is provided with a second transition groove (6); The second adapter (23) is rotatably inserted into the second adapter slot (6).
10. An endoscope, including an insertion portion, characterized in that, The endoscope further includes an endoscope handle as described in any one of claims 1 to 9, wherein the insertion portion is disposed at the distal end of the handle housing (1).