An endoscope lever damping structure

Abstract

This utility model discloses an endoscope lever damping structure, including a base, a damping ring, and a lever. The base has a raised support frame, and the support frame has a support arm that can elastically deform in the vertical direction. The damping ring has a connecting seat that extends downwards. The damping ring is assembled on the support frame, and the lower end of the connecting seat presses against the support arm. The lever is located on the side of the base. The damping ring is mounted on the support frame. After the damping ring and support frame are assembled, the support arm can deform downwards to adapt to the pressure applied to the damping ring by the handle mounting structure, facilitating the installation of the damping ring and the base, and ensuring consistent pressure between the damping ring and the handle.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an endoscope lever damping structure. Background Technology

[0002] An endoscope is a commonly used instrument in clinical medical diagnosis and treatment. It is an instrument that enters the body through natural passages to perform examinations or treatments. An endoscope consists of an insertion part that goes into the body and an operating part that is operated from outside the body. By manipulating the operating part, the bending motion of the insertion part can be controlled, enabling the endoscope to examine different directions and areas within the body tissues.

[0003] The operating unit typically includes a handle and a control structure located within the handle. The control structure includes a rotating wheel and a traction cable connected to the wheel. When operating the endoscope, moving the wheel moves the traction cable, which in turn moves the curved tube at the front end of the insertion section, thus bending the insertion section. Existing endoscope control structures usually require multiple fasteners and damping components to achieve the wheel's hovering function. The control structure has many parts and a complex structure; the more parts, the greater the assembly error, resulting in lower endoscope handle assembly efficiency and a higher probability of excessive damping in the control structure, significantly affecting the operating feel. Utility Model Content

[0004] In order to overcome at least one of the technical problems of the prior art, the present invention provides an endoscope lever damping structure that facilitates production and installation, reduces assembly errors, and improves the operating feel.

[0005] An endoscope lever damping structure is provided, including a base, a damping ring, and a lever. The base has a raised support frame, and the support frame has a support arm capable of elastic deformation in the vertical direction. The damping ring has a connecting seat that extends downwards, and the damping ring is assembled on the support frame, with the lower end of the connecting seat pressing against the support arm. The lever is located on the side of the base.

[0006] The aforementioned endoscope lever damping structure has at least the following beneficial effects: the damping ring is mounted on the support frame, and the lower end of the connecting seat is mounted on the support arm. When the damping ring is assembled with the support frame, the support arm can deform downward to adapt to the pressure applied to the damping ring by the handle mounting structure, which facilitates the installation of the damping ring and the base, and also ensures the consistency of pressure between the damping ring and the handle.

[0007] In some embodiments of the aforementioned endoscope lever damping structure, the base is a rigid component, and the damping ring is a flexible component. The rigid material of the base ensures structural stability and provides stable support for the damping ring. The flexible material of the damping ring not only provides damping but also allows for deformation when installed inside the endoscope handle, facilitating the installation of the base and the damping ring.

[0008] As a further improvement to the above solution, the damping ring and the base are integrally injection-molded structures. Molding the damping ring and base as a single unit reduces the assembly process and improves production and installation efficiency.

[0009] In some embodiments of the above-mentioned endoscope lever damping structure, the support arm is a cantilever extending outward from the support frame. The cantilever structure gives the support arm a certain deformation capability. This structure does not add any parts and is convenient for production and installation, making the lever damping structure simpler and easier to assemble.

[0010] As a further improvement to the above solution, the support frame is formed by several support seats, and the support arms are located at the ends of the support seats. Two support arms of adjacent support seats correspond to each other to form a support groove, and the connecting seat is detachably placed in the support groove. The support groove uses the support arms on both sides to limit and install the connecting seat, which not only increases the stability of the support arms, but also limits the left and right movement of the connecting seat, improving the connection strength between the damping ring and the base.

[0011] In some embodiments of the aforementioned endoscope lever damping structure, the upper surface of the damping ring is provided with raised strip-shaped damping ribs. These strip-shaped damping ribs contact the handle mounting structure, reducing the contact area between the damping ring and the handle mounting, changing surface contact to line contact, and reducing the frictional force between the base and the damping ring during rotation. This ensures appropriate resistance during lever movement and facilitates operation.

[0012] In some embodiments of the aforementioned endoscope lever damping structure, a plurality of raised dots are provided on the lower surface of the base. These raised dots reduce the contact area between the base and the handle housing, changing surface contact to point contact, thereby reducing friction between the base and the handle housing during rotation and ensuring moderate resistance during lever movement.

[0013] In some embodiments of the aforementioned endoscope lever damping structure, a guide groove is provided on the base, and the damping ring is further provided with a downwardly extending guide strip, which is assembled by being inserted into the guide groove. The guide strip is inserted into the guide groove for installation and positioning, providing a horizontal limit to the damping ring when the base and damping ring rotate, preventing displacement between the base and the damping ring, and ensuring that the base and the damping ring can move simultaneously in the same direction.

[0014] In some embodiments of the aforementioned endoscope lever damping structure, a baffle is provided on the base, which surrounds the support frame, and the lever is fixed to the outer surface of the baffle. The baffle serves to shield and protect, optimizes the connection structure of the lever, increases the connection area between the lever and the base, and makes it easier for the lever to move the base. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort. Figure 1 This is a schematic diagram of a preferred embodiment of the present invention; Figure 2 This is an exploded view of a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the base structure of a preferred embodiment of the present invention; Figure 4 This is a cross-sectional view of the damping ring according to a preferred embodiment of the present invention. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 do not 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Reference Figures 1 to 4An embodiment discloses an endoscope lever damping structure, which includes a base 10, a damping ring 20, and a lever 30. The base 10 has a protruding support frame 110, and the support frame 110 has a support arm 111 that can elastically deform in the vertical direction. The damping ring 20 has a connecting seat 210 that extends downwards. The damping ring 20 is assembled on the support frame 110, and the lower end of the connecting seat 210 presses against the support arm 111.

[0019] A baffle 140 is provided on the base 10, and the baffle 140 is arranged around the support frame 110. The lever 30 is fixed to the outer surface of the baffle 140. The baffle 140 serves to shield and protect, optimizes the connection structure of the lever 30, increases the connection area between the lever 30 and the base 10, and makes it easier for the lever 30 to move the base 10.

[0020] An endoscope traction cable mounting structure is provided on the base 10. The end of the traction cable is fixed on the base 10. Therefore, when the lever 30 rotates, it drives the base 10 to rotate, thereby driving the traction cable to move and realizing the movement of the endoscope end tube.

[0021] The lever damping structure is installed inside the endoscope handle housing. The damping ring 20 is mounted on the support frame 110. The lower end of the connecting seat 210 is mounted on the support arm 111. The mounting structure inside the handle housing limits the assembled base 10 and damping ring 20, so that the base 10 and damping ring 20 are rotatably connected inside the handle housing. At this time, the lever 30 is located outside the handle housing.

[0022] During operation, moving the lever 30 causes the base 10 and damping ring 20 to rotate in the same direction. During this rotation, friction between the base 10, damping ring 20, and the handle generates damping, affecting the feel of the lever 30. In this embodiment, the flexible damping ring 20 and the elastic support arm 111 can deform and compress to prevent excessive tightness, ensuring smooth rotation. Simultaneously, the resistance of the damping ring 20 can fix the base 10 after it stops rotating, keeping the angle of the curved tube at the front constant, achieving stepless damping adjustment. The lever 30 then functions as a hover control to fix the angle of the curved tube.

[0023] The damping ring 20 is assembled on the support frame 110. The support arm 111 provides support to the connecting seat 210 of the damping ring 20. When the damping ring 20 and the base are installed in the handle, the handle mounting structure applies downward pressure to the damping ring 20 and the base 10. At this time, the deformable support arm 111 can adaptively deform, automatically adjusting the interference fit between the damping ring 20 and the handle mounting structure. This adaptive assembly structure not only facilitates the installation of the damping ring 20 and the base 10 with the handle, but also ensures the consistency of pressure between the damping ring 20 and the handle for damping rings 20 with different production precision, thereby ensuring the consistency of the operating feel of the lever 30.

[0024] The base 10 is a rigid component, which can be made of plastic, metal, composite materials, or other rigid structures. The rigid base 10 provides stable support for the damping ring 20 and ensures stable transmission of power from the lever 30. The damping ring 20 is a flexible component, which can be made of various flexible materials such as plastic or porous materials. This damping ring 20 possesses elastic deformation characteristics. The flexible damping ring 20 not only provides rotational damping but also deforms when installed inside the endoscope handle, facilitating the installation of the base 10 and the damping ring 20.

[0025] Furthermore, in some embodiments, the damping ring 20 and the base 10 are integrally injection-molded and coated structures. The soft damping ring 20 is formed onto the rigid base 10 in one step using a two-color injection molding machine, or it is coated onto the rigid base 10 in a second injection molding process using a coating injection molding machine. The resulting base 10 and damping ring 20 form an integral damping component. During the injection molding and coating process, the support arm 111 of the base 10 provides a limit for the damping ring 20. After production, the integral damping component formed by the damping ring 20 and the base 10 is installed into the handle housing. This integral structure of the damping ring 20 and the base 10 reduces the assembly of the base 10 and the damping ring 20, and also reduces the assembly steps between the base 10, the damping ring 20, and the handle housing, thus improving the production and installation efficiency of the handle.

[0026] Furthermore, the support arm 111 is a cantilever extending outward from the support frame 110. This cantilever structure allows one end of the support arm 111 to be movable, and the support arm 111 as a whole possesses a certain degree of deformation capability in the vertical direction. The cantilever structure does not require changing the material of the support arm 111, nor does it add any additional connecting parts or structures. This achieves integral molding of the support arm 111 and the base 10, facilitating the production and installation of the base 10, and making the lever damping structure simpler and easier to assemble.

[0027] According to the appendix Figures 1 to 3The structure of the support frame 110 includes a support arm 111 that can be mounted on either the outer or inner wall of the support frame 110. In the accompanying drawings, the handle housing in this embodiment is mounted as a column, and the base 10 is annular. The base 10 and the damping ring 20 are inserted into the column for fixation. The support frame 110 of the base 10 is also annular, formed by several arc-shaped support seats 112 surrounding each other, with each support frame 110 spaced apart. In this embodiment, each support seat 112 has a support arm 111 at its end. The two support arms 111 at the ends of adjacent support seats 112 are separated, and the gap between the two support arms 111 forms a support groove 113. The connecting seat 210 on the damping ring 20 is detachably placed within the support groove 113.

[0028] The support frame 110 provides vertical support to the damping ring 20, while the support groove 113 provides horizontal limitation to the connecting seat 210 of the damping ring 20. When the base 10 rotates, the support groove 113 allows the damping ring 20 to be circumferentially limited. The support groove 113 of the base 10 clamps the connecting seat 210, causing the damping ring 20 to rotate. The support groove 113 limits the connecting seat 210 to the left and right. Regardless of whether the base 10 and the damping ring 20 are separate structures or injection-molded integral structures, the support groove 113 increases the contact surface between the base 10 and the damping ring 20, thereby improving the connection strength between the base 10 and the damping ring 20.

[0029] To improve the connection strength between the base 10 and the damping ring 20, a vertical guide groove 130 is provided on the base 10, and the damping ring 20 is also provided with a downwardly extending guide strip 230, which is assembled by engaging with the guide groove 130. The guide strip 230 is inserted into the guide groove 130 for installation and positioning, providing a horizontal limit for the damping ring 20 when the base 10 and the damping ring 20 rotate, preventing displacement between the base 10 and the damping ring 20, and ensuring that the base 10 and the damping ring 20 can move simultaneously and in the same direction.

[0030] See attached document Figure 4 The upper surface of the damping ring 20 is provided with raised strip-shaped damping ribs 220. The strip-shaped damping ribs 220 contact the mounting structure of the handle. The damping ribs 220 reduce the contact area between the damping ring 20 and the handle mounting, changing the surface contact to a line contact, reducing the frictional force of the rotation of the damping ring 20 and the base 10, thereby ensuring that the resistance of the lever 30 is appropriate when it moves and is easy to operate.

[0031] Furthermore, the lower surface of the base 10 that contacts the handle housing is provided with a plurality of raised dots 120. The raised dots 120 of the base 10 reduce the contact area between the base 10 and the handle housing, changing the surface contact to point contact, reducing the friction between the base 10 and the handle housing when rotating, avoiding excessive resistance when the lever moves, ensuring smooth rotation, and further improving the operating feel of the lever 30 when it moves.

[0032] The above is a detailed description of the preferred embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. Other embodiments that can be obtained are all within the protection scope of the present utility model.

Claims

1. An endoscope lever damping structure, characterized in that: include The base (10) is provided with a protruding support frame (110), and the support frame (110) is provided with a support arm (111) that can elastically deform in the vertical direction. Damping ring (20), the damping ring (20) is provided with a connecting seat (210), the connecting seat (210) extends downward, the damping ring (20) is assembled on the support frame (110), and the lower end of the connecting seat (210) presses against the support arm (111); A lever (30) is disposed on the side of the base (10).

2. The endoscope lever damping structure according to claim 1, characterized in that: The base (10) is a rigid component, and the damping ring (20) is a flexible component.

3. The endoscope lever damping structure according to claim 2, characterized in that: The damping ring (20) and the base (10) are an integral injection-molded structure.

4. The endoscope lever damping structure according to claim 1, characterized in that: The support arm (111) is a cantilever extending outward from the support frame (110).

5. The endoscope lever damping structure according to claim 4, characterized in that: The support frame (110) is formed by several support seats (112), the support arm (111) is located at the end of the support seat (112), and the two support arms (111) of adjacent support seats (112) form a support groove (113) corresponding to each other. The connecting seat (210) is detachably placed in the support groove (113).

6. The endoscope lever damping structure according to claim 1, characterized in that: The upper surface of the damping ring (20) is provided with raised strip-shaped damping ribs (220).

7. The endoscope lever damping structure according to claim 1, characterized in that: The lower surface of the base (10) is provided with a number of raised protrusions (120).

8. The endoscope lever damping structure according to claim 1, characterized in that: The base (10) is provided with a guide groove (130), and the damping ring (20) is also provided with a downwardly extending guide strip (230), which is assembled by being inserted into the guide groove (130).

9. The endoscope lever damping structure according to claim 1, characterized in that: A baffle (140) is provided on the base (10), the baffle (140) is arranged around the support frame (110), and the lever (30) is fixed on the outer surface of the baffle (140).

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