Endoscope handle device capable of increasing rotation damping and endoscope

Abstract

The utility model discloses an endoscope handle device capable of increasing rotation damping and an endoscope, and the endoscope handle device comprises a shell, a rotating damping device, a rotating damping device and a rotating damping device, the rotating part is rotationally arranged on the shell; the middle part is arranged between the shell and the rotating part; wherein the middle piece is configured to form a damping force between the rotating piece and the shell when the rotating piece rotates relative to the shell. According to the technical scheme provided by the utility model, the middle piece is arranged between the positioning column and the positioning hole of the rotating piece to provide damping force, so that the structure of a damping mechanism in the prior art is simplified, the assembly process is simplified, the manufacturing cost is reduced, and the reliability and durability of the device are improved.

Description

Technical Field

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

[0002] Existing endoscopes typically consist of an insertion tube, a traction group, and a traction mechanism. The traction group includes a traction rope, the distal end of which is connected to the distal end of the insertion tube, and the proximal end of which is connected to the traction mechanism. Driven by the traction mechanism, the insertion tube is bent and deformed laterally. During actual use, users often need to lock the insertion tube's bent state (i.e., maintain the insertion tube's bending angle at a specific location) to facilitate diagnosis and treatment of specific areas.

[0003] To achieve this goal, existing technologies typically incorporate a damping mechanism into the traction mechanism. However, existing damping mechanisms are complex, require high assembly requirements, and can interfere with the curved wheels in the traction mechanism, causing them to deviate from their rotational axis. Therefore, improvements to existing technologies are necessary to overcome these drawbacks. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is that the traditional setting method of the endoscope damping structure is either relatively complicated, making the assembly of the endoscope relatively cumbersome and the assembly efficiency low, or it is easy to interfere with the rotating parts in the traction mechanism, causing them to deviate from the rotation axis.

[0005] In order to solve the above technical problems, the utility model provides an endoscope handle device with increased rotational damping, comprising: a shell; a rotating member rotatably arranged on the shell; an intermediate member arranged between the shell and the rotating member; wherein the intermediate member is configured to form a damping force between the rotating member and the shell when the rotating member rotates relative to the shell.

[0006] Preferably, a positioning post is provided on one of the housing and the rotating member, and a positioning hole cooperating with the positioning post is provided on the other of the housing and the rotating member, and the intermediate member is provided between the positioning post and the positioning hole.

[0007] Preferably, the intermediate piece is a hollow sleeve structure, wherein the outer ring of the intermediate piece forms a contact fit with the hole wall of the positioning hole, and the inner ring of the intermediate piece forms a contact fit with the outer wall of the positioning column; or,

[0008] The intermediate member is a rotation damper, and the rotation damper acts between the housing and the rotating member.

[0009] Preferably, the outer diameter of the positioning post gradually decreases in the first direction X; and / or the inner diameter of the positioning hole gradually decreases in the first direction X.

[0010] Preferably, the endoscope handle device further comprises: a first limiting structure, the first limiting structure is connected to the positioning column, and the first limiting structure is configured to limit the rotating member on the positioning column in the axial direction of the positioning column.

[0011] Preferably, an elastic member is pressed between the first limiting structure and the rotating member, the first limiting structure includes a fastener threadedly connected to the positioning column, one end of the elastic member acts on the rotating member, the other end acts on the fastener, and the elastic member is located on the outer periphery of the intermediate member;

[0012] The compression amount of the elastic member tends to gradually increase when the fastener moves along a second direction, wherein the second direction is opposite to the first direction.

[0013] Preferably, the first limiting structure also includes a gasket, which is sleeved on the fastener, and the other end of the elastic member abuts against the gasket; wherein, the gasket abuts against the end side of the positioning hole, and the outer diameter of the gasket is larger than the aperture of the positioning hole.

[0014] Preferably, the rotating member is provided with a stepped hole cooperating with the elastic member, and the elastic member is at least partially accommodated in the stepped hole; wherein the stepped hole and the positioning hole form a countersunk structure.

[0015] Preferably, the rotating member is a rotating wheel, and the rotating wheel is at least partially accommodated in the housing, wherein a shifting rod is provided on the rotating wheel, and the shifting rod extends to the outside of the housing.

[0016] The utility model also provides an endoscope, comprising the endoscope handle device as described above.

[0017] The technical solution provided by the utility model has at least the following advantages:

[0018] The endoscope handle device provided by the present invention comprises a housing, a positioning post, a rotating member, and a positioning post. The positioning post is provided on the housing; the rotating member is provided with a positioning hole, and the rotating member is sleeved on the positioning post through the positioning hole; and the intermediate member is provided between the positioning post and the positioning hole, and is interference-fitted with the rotating member and the positioning post to form a damping force. The technical solution provided by the present invention simplifies the structure of the damping mechanism by providing a damping force by providing an intermediate member between the positioning post and the positioning hole of the rotating member. This not only simplifies the assembly process, but also reduces manufacturing costs and improves the reliability and durability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0020] Figure 1 This is a structural schematic diagram of an embodiment of an endoscope handle device (one of the housings is hidden) with increased rotational damping provided by the present invention;

[0021] Figure 2 for Figure 1 A schematic structural diagram of the endoscope handle device (excluding the first limiting structure);

[0022] Figure 3 for Figure 1 A schematic structural diagram of the positioning column of the endoscope handle device;

[0023] Figure 4 for Figure 1 A schematic structural diagram of the positioning column and the intermediate piece of the endoscope handle device;

[0024] Figure 5 for Figure 1 A schematic cross-sectional view of the rotating member of the endoscope handle device;

[0025] Figure 6 This is a structural schematic diagram of another embodiment of an endoscope handle device with increased rotational damping (one of the housings is hidden) provided by the present invention;

[0026] Figure 7 for Figure 6 An enlarged structural diagram of the elastic member of the endoscope handle device.

[0027] Description of reference numerals:

[0028] 100 - housing; 101 - opening; 110 - mounting cavity; 120 - positioning column; 121 - end face; 122 - nut; 123 - central axis; 130 - first limiting structure; 131 - bolt; 132 - gasket; 200 - rotating member; 210 - positioning hole; 220 - lever; 230 - stepped hole; 231 - stepped surface; 300 - intermediate member; 400 - elastic member;

[0029] X-first direction; Y-second direction.

[0030] The realization of the purpose, functional features and beneficial effects of the present invention will be further described below with reference to specific embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Example 1

[0035] See also Figures 1 to 7 The present invention provides an endoscope handle device, which includes a shell 100 and a traction device (not shown) provided on the shell 100, wherein the traction device includes a traction rope (not shown).

[0036] An installation cavity 110 is formed inside the shell 100. Specifically, the shell 100 may include at least two shell structures, which are assembled by any suitable detachable connection method and together enclose and define the installation cavity 110. An opening 101 is provided at one end of the installation cavity 110. Some components in the traction device are accommodated in the installation cavity 110, and another part of the components extends out of the installation cavity 110 through the opening 101 to form an insertion portion of the endoscope, which can be inserted into the patient's body during actual surgical application and reach the target patient site, making it convenient for the operator to perform surgical treatment on the patient with the endoscope.

[0037] Since the main invention of the present invention is to improve the endoscope handle device, the endoscope handle device will be mainly described below with reference to the accompanying drawings.

[0038] Please combine Figures 1 to 7 A rotating member 200 is rotatably mounted on the housing 100, with an intermediate member 300 disposed between the housing 100 and the rotating member 200. The rotating member 200 is part of the traction device and is preferably a rotating wheel. The rotating wheel is at least partially housed within the housing 100. A lever 220 is provided on the rotating wheel, extending outside the housing 100 for manual operation by a user. The rotating wheel can have any shape and can be a circular disk, an elliptical disk, a gear, or the like.

[0039] One end of the traction rope is wrapped around the rotating wheel, and the other end is attached to the inner wall of the endoscope's insertion section. When the rotating wheel rotates under force, it pulls on the traction rope, which in turn pulls on the endoscope's insertion section, causing it to bend. At this point, the traction rope is in a stretched state, that is, under stress, and this stressed state generates a reaction force on the rotating wheel.

[0040] In this embodiment, when the rotating wheel rotates relative to the housing 100, a damping force is generated between the rotating wheel and the housing 100 due to the action of the intermediate member 300. By providing the intermediate member 300, the damping force between the housing 100 and the rotating wheel is equal to the reaction force. Therefore, when the user releases the rotating wheel lever 220 during use, the rotating wheel will remain in its current position, that is, the curved state of the endoscope insertion portion will be locked.

[0041] Regarding the installation structure between the wheel and the housing 100, specifically, a positioning column 120 is provided on one of the housing 100 and the wheel, and a positioning hole 210 that cooperates with the positioning column 120 is provided on the other, and the intermediate piece 300 is provided between the positioning column 120 and the positioning hole 210.

[0042] In one embodiment, the positioning post 120 is disposed within the mounting cavity 110 of the housing 100, and the rotating wheel is provided with a positioning hole 210. The rotating wheel is sleeved onto the positioning post 120 through the positioning hole 210, allowing the rotating wheel to rotate relative to the positioning post 120. In another embodiment, the positioning post 120 is disposed on the rotating wheel, and the mounting cavity 110 of the housing 100 is provided with a positioning hole 210 that cooperates with the positioning post 120. The positioning post 120 is inserted into the positioning hole 210. The following description uses the example of the positioning post 120 being disposed on the housing 100 and the positioning hole 210 being disposed on the rotating wheel. Based on the above description, it can be seen that the scope of protection of the present invention is not limited thereby.

[0043] The intermediate member 300 can be a hollow sleeve structure, a rotary damper, or an arc-shaped gasket. If the intermediate member 300 is a rotary damper, it acts between the housing 100 and the rotating member 200. When the user releases the lever 220, the rotary damper maintains the current state of the rotating wheel, unaffected by the force of the traction rope. It is worth noting that the aforementioned rotary damper is prior art, and its structure will not be described in detail here.

[0044] When the middle piece 300 is a hollow sleeve structure, the middle piece 300 can be regarded as being fixedly connected to the positioning column 120. At this time, the middle piece 300 and the positioning column 120 are a whole, and the rotating wheel rotates relative to the middle piece 300 and the positioning column 120; or, the middle piece 300 can be regarded as being fixedly connected to the rotating wheel. At this time, the middle piece 300 rotates synchronously with the rotating wheel.

[0045] The wall of the hollow sleeve can be non-hollowed or hollowed, or can be recessed with multiple recessed areas. Preferably, the wall of the hollow sleeve is non-hollowed and has no recessed areas. Figure 3 and Figure 4 As shown, the middle piece 300 is sleeved on the outer circumference of the positioning column 120, and the rotating wheel is sleeved on the outer circumference of the middle piece 300, wherein the outer ring of the middle piece 300 forms a contact fit with the hole wall of the positioning hole 210, and the inner ring of the middle piece 300 forms a contact fit with the outer wall of the positioning column 120. The middle piece 300 can form an interference fit between the rotating wheel and the positioning column 120, thereby forming a damping force.

[0046] Specifically, the thickness of at least some sections of the intermediate member 300 is greater than the gap width between the positioning hole 210 and the positioning post 120, creating an interference fit between the three. Consequently, when the rotating wheel rotates relative to the positioning post 120, interference forces, or damping forces, are generated between the rotating wheel, the positioning post 120, and the intermediate member 300. In this embodiment, the intermediate member 300 exerts a radial force on the positioning post 120, tightening it toward its central axis 123. The advantage of this design is that the hollow sleeve structure does not affect the positioning post 120 or cause it to deviate from its central axis 123.

[0047] When the intermediate member 300 is a hollow sleeve structure, several configurations are possible: First, the intermediate member 300 can be composed of multiple components, evenly arranged around the circumference of the positioning post 120. More specifically, for example, multiple identical or different Teflon layers can be used, evenly applied around the circumference of the positioning post 120. This configuration allows for customization based on specific needs, by selecting different materials or layer thicknesses to achieve varying damping effects and durability.

[0048] The second setting method is to spirally wrap the intermediate piece 300 around the positioning column 120 along its circumference. This design provides flexibility for the installation of the intermediate piece, so that it can better adapt to positioning columns 120 of different diameters and lengths. The spiral winding method can also increase the contact area between the intermediate piece 300 and the positioning column 120, improve the damping effect, and ensure stability and reliability.

[0049] When the intermediate member 300 is a curved gasket, multiple curved gaskets are provided at intervals along the circumference of the positioning post 120 and are fixed to the positioning post 120. The arrangement of the curved gaskets differs from the arrangement when the intermediate member 300 is a hollow sleeve structure in that the hollow sleeve structure is continuously distributed along the circumference of the positioning post 120, while the curved gaskets are discontinuously distributed along the circumference of the positioning post 120.

[0050] Technicians can choose the configuration method of middleware 300 based on the actual application scenario. Different configuration methods may be suitable for different endoscope handle devices or have advantages in specific clinical operations. Therefore, when designing and selecting middleware 300, it is necessary to comprehensively consider the performance requirements of the device, the operating environment, and the needs of the user to ensure the best effect and experience.

[0051] When selecting materials for the intermediate member 300, fluorine-based materials are preferred. Teflon (also known as polytetrafluoroethylene, PTFE) is considered one of the best choices. Teflon has excellent material properties, one of which is its low coefficient of friction. This characteristic is crucial for the application of the intermediate member 300, as it ensures that effective damping force is generated while minimizing frictional losses. This minimizes the impact on the rotational performance of the wheel.

[0052] The low coefficient of friction of Teflon means that the magnitude of friction will be greatly reduced during the contact between moving parts. This is crucial to ensuring the long-term reliability of the middle piece 300. The low coefficient of friction also helps reduce wear, extend the service life of components, and reduce maintenance costs. In addition to Teflon, there are other fluorine-based materials that can be considered, such as FEP (Fluorinated ethylene propylene). FEP has excellent properties similar to PTFE, including chemical inertness, excellent heat resistance and electrical properties. Therefore, in certain specific application environments, FEP can also be a suitable choice.

[0053] In summary, although Teflon is a preferred material for the middle piece 300 , various factors should be considered comprehensively in actual applications to ensure that the most appropriate material is selected to meet specific needs.

[0054] Please combine Figure 3 The positioning post 120 is fixed to the housing 100 and is preferably integrally formed with the housing 100. The outer diameter of the positioning post 120 in the first direction X gradually decreases, or the outer diameter of the positioning post 120 in the first direction X is constant. Similarly, the inner diameter of the positioning hole 210 in the first direction X gradually decreases, or the inner diameter of the positioning hole 210 in the first direction X is constant. The above-mentioned "first direction X" refers to the axial direction of the positioning post 120, specifically, the direction opposite to the installation direction of the rotor. The installation direction of the rotor refers to the direction in which the rotor is mounted on the positioning post 120.

[0055] like Figure 5As shown, the shape of the positioning hole 210 preferably matches the outer shape of the positioning post 120. That is, when the rotating wheel is mounted on the intermediate member 300 through the positioning hole 210, the rotating wheel can be rotatably mounted on the positioning post 120. Preferably, the outer wall of the positioning post 120 is a tapered surface, and the positioning hole 210 is a tapered hole. The outer diameter of the positioning post 120 in the first direction X gradually decreases, and the inner diameter of the positioning hole 210 also gradually decreases in the first direction X. This arrangement can utilize the centering and guiding properties of the tapered surface to facilitate mounting the intermediate member 300 on the outer periphery of the positioning post 120, thereby improving assembly efficiency.

[0056] In order to prevent the rotating wheel from being separated from the positioning column 120, the endoscope handle device further includes a first limiting structure 130. Figure 1 As shown, the first limiting structure 130 is connected to the positioning post 120. The first limiting structure 130 at least partially covers the positioning hole 210 to limit the rotating wheel on the positioning post 120 in the axial direction of the positioning post 120.

[0057] like Figure 1 As shown in , the first limiting structure 130 includes a fastener 131 threadedly connected to the positioning column 120. One end of the positioning column 120 is fixed to the inner wall of the housing 100 and the other end is a free end. The fastener 131 is provided at the free end of the positioning column 120. The fastener 131 can be a bolt, a screw, etc.

[0058] In one embodiment, the width of the end of the fastener 131 is greater than the inner diameter of the positioning hole 210, and the positioning column 120 is provided with a corresponding threaded hole. After the fastener 131 is locked with the threaded hole, the rotating wheel is limited. In another embodiment, the positioning column 120 is embedded with a nut 122 that cooperates with the fastener 131. The fastener 131 and the nut 122 cooperate to achieve the purpose of limiting the position. Moreover, by embedding the nut in the positioning column 120, the processing of the positioning column 120 is more simplified.

[0059] Furthermore, the first limiting structure 130 also includes a gasket 132, which is sleeved onto the fastener 131. The outer diameter of the gasket 132 is larger than the diameter of the positioning hole 210. When the end head width of the fastener 131 is smaller than the diameter of the positioning hole 210, the gasket 132 abuts against the end side of the positioning hole 210, and the end head width of the fastener 131 abuts against the gasket 132, thereby restraining the rotating wheel on the positioning column 120. As can be seen from the above, the outer diameter of the gasket 132 is larger than the end head width of the fastener 131, which can compensate for the defect of the insufficient end head width of the fastener 131, thereby more stably restraining the rotating wheel.

[0060] It is worth noting that the first limiting structure 130 can also be another shell corresponding to the shell 100, and the rotating member 200 can be limited by the structural setting of the other shell. This structure can be set according to actual conditions and will not be described here.

[0061] Of course, the connection method between the first limiting structure 130 and the positioning column 120 is not limited to the above-mentioned bolts and threads. For example, it can also be a snap, lock, magnet, adhesive, slot connection, etc., which is not limited here.

[0062] Example 2

[0063] Considering that during the use of the endoscope, if the damping force between the rotating wheel and the positioning column 120 is too large, it will be more difficult for the user to operate the lever 220; if the damping force between the rotating wheel and the positioning column 120 is too small, the bending state of the endoscope is not easy to be locked, and rebound is likely to occur.

[0064] In view of the above problems, the present invention also provides another endoscope handle device, which can adjust the damping force between the rotating wheel and the positioning column 120. The difference between this embodiment and the first embodiment is that an elastic member 400 is pressed between the first limiting structure 130 and the rotating wheel. One end of the elastic member 400 acts on the rotating wheel and the other end acts on the fastener 131. The elastic member 400 is located on the outer periphery of the intermediate member 300.

[0065] The elastic member 400 may be a compression spring. Alternatively, the elastic member 400 may be a flexible member that can elastically deform when subjected to force, such as a silicone pad or rubber pad. Alternatively, the elastic member 400 may be a combination of a compression spring and a flexible member. Preferably, the elastic member 400 is a compression spring. The following description will take the compression spring as an example.

[0066] Specifically, when the width of the end head of the fastener 131 is greater than the positioning hole 210 and the washer 132 is not provided, one end of the compression spring abuts against the rotating wheel and the other end abuts against the width of the end head of the fastener 131. When the width of the end head of the fastener 131 is less than the positioning hole 210 and the washer 132 is sleeved on the fastener 131, one end of the compression spring abuts against the rotating wheel and the other end abuts against the washer 132.

[0067] In the direction of the central axis 123 of the positioning column 120 (i.e., the first direction X or the second direction Y), the compression spring is pressed against the rotating member 200 by the first limiting structure 130. When the fastener 131 moves in the second direction Y, the compression spring is compressed, pushing the rotating wheel to move in the second direction Y. At this time, the force acting on the rotating wheel in the second direction Y increases, and the damping force between the rotating wheel, the intermediate member 300, and the positioning column 120 increases. As can be seen from the above, the compression of the compression spring tends to gradually increase during the movement of the fastener 131 in the second direction Y, and the elastic force of the compression spring acting on the rotating wheel increases, thereby increasing the damping force between the rotating wheel and the positioning column 120. The above-mentioned "second direction Y" is opposite to the first direction X, and the second direction Y is the installation direction of the rotating wheel.

[0068] As the fastener 131 moves in the first direction X, the compression of the compression spring gradually decreases, the elastic force of the compression spring acting on the rotating wheel decreases, and the damping force between the rotating wheel, the intermediate member 300, and the positioning column 120 decreases accordingly. In other words, in this embodiment, the damping force can be adjusted by adjusting the first limiting structure 130 in the first direction X or the second direction Y. This ensures that the user can easily control the bending of the endoscope insertion portion by moving the lever 220 while also locking the bent state to prevent it from rebounding. This has the advantages of simple structure and easy operation.

[0069] For further information, please refer to Figure 6 and Figure 7 The rotating wheel is provided with a stepped hole 230 that cooperates with the compression spring. The stepped hole 230 and the positioning hole 210 form a countersunk structure, wherein the aperture of the stepped hole 230 is larger than the aperture of the positioning hole 210. The compression spring is at least partially accommodated in the stepped hole 230. The stepped hole 230 has a stepped surface 231 opposite to the gasket 132. One end of the compression spring is abutted against the stepped surface 231 under the action of the fastener 131 and the gasket 132.

[0070] The outer diameter of the gasket 132 is smaller than the diameter of the stepped hole 230. The compression spring, the end of the fastener 131 and the gasket 132 can be as shown in FIG. Figure 7 As shown, the compression spring is completely located in the stepped hole 230 , but the compression spring may be partially located in the stepped hole 230 while the end of the fastener 131 and the gasket 132 are located outside the stepped hole 230 .

[0071] Example 3

[0072] The present invention further provides an endoscope, which includes the endoscope handle device described above. An embodiment of the endoscope includes an embodiment of the endoscope handle device described above. The beneficial effects of the endoscope handle device described above can be applied to the beneficial effects of the endoscope.

[0073] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An endoscope handle device with increased rotational damping, characterized in that: include: Housing (100); A rotating member (200) rotatably disposed on the housing (100); an intermediate member (300) disposed between the housing (100) and the rotating member (200); The intermediate member (300) is configured to generate a damping force between the rotating member (200) and the housing (100) when the rotating member (200) rotates relative to the housing (100).

2. The endoscope handle device according to claim 1, wherein: A positioning column (120) is provided on one of the housing (100) and the rotating member (200), and a positioning hole (210) that cooperates with the positioning column (120) is provided on the other of the housing (100), and the intermediate member (300) is provided between the positioning column (120) and the positioning hole (210).

3. The endoscope handle device according to claim 2, wherein: The middle piece (300) is a hollow sleeve structure, wherein the outer ring of the middle piece (300) forms a contact fit with the hole wall of the positioning hole (210), and the inner ring of the middle piece (300) forms a contact fit with the outer wall of the positioning column (120); or, The intermediate member (300) is a rotation damper, and the rotation damper acts between the housing (100) and the rotating member (200).

4. The endoscope handle device according to claim 2, wherein: The outer diameter of the positioning column (120) gradually decreases in the first direction X; and / or, The inner diameter of the positioning hole (210) gradually decreases in the first direction X.

5. The endoscope handle device according to claim 4, wherein: Also includes: A first limiting structure (130) is connected to the positioning column (120), and the first limiting structure (130) is configured to limit the rotating member (200) on the positioning column (120) in the axial direction of the positioning column (120).

6. The endoscope handle device according to claim 5, wherein: An elastic member (400) is pressed between the first limiting structure (130) and the rotating member (200), the first limiting structure (130) includes a fastener (131) threadedly connected to the positioning column (120), one end of the elastic member (400) acts on the rotating member (200), and the other end acts on the fastener (131), and is located on the outer periphery of the intermediate member (300); The compression amount of the elastic member (400) tends to gradually increase during the movement of the fastener (131) along a second direction, wherein the second direction is opposite to the first direction.

7. The endoscope handle device according to claim 6, wherein: The first limiting structure (130) further includes a gasket (132), the gasket (132) being sleeved on the fastener (131), and the other end of the elastic member (400) abuts against the gasket (132); The gasket (132) is disposed against the end side of the positioning hole (210), and the outer diameter of the gasket (132) is larger than the hole diameter of the positioning hole (210).

8. The endoscope handle device according to claim 6, wherein: The rotating member (200) is provided with a stepped hole (230) that cooperates with the elastic member (400), and the elastic member (400) is at least partially accommodated in the stepped hole (230); wherein the stepped hole (230) and the positioning hole (210) form a countersunk structure.

9. The endoscope handle device according to claim 1, wherein: The rotating member (200) is a rotating wheel, and the rotating wheel is at least partially accommodated in the housing (100), wherein a shifting rod (220) is provided on the rotating wheel, and the shifting rod (220) extends to the outside of the housing (100).

10. An endoscope, characterized in that: The invention comprises the endoscope handle device according to any one of claims 1 to 9.

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