Handle and endoscope

Abstract

The present invention provides a handle for adjusting and locking an insertion angle of an insertion portion. The handle comprises a shell, a first angle adjusting module, a second angle adjusting module and a braking module. The first angle adjusting module comprises a first winding wheel rotationally connected with the shell and a first rope fixed to the first winding wheel. The second angle adjusting module comprises a second winding wheel rotationally connected with the shell and a second rope fixed to the second winding wheel. The first winding wheel is sleeved with the second winding wheel, the second winding wheel is sleeved with the braking module, and the braking module is switched between the braking state of pressing the second winding wheel and the releasing state of being spaced from the second winding wheel, so that synchronous braking or braking releasing of the first winding wheel and the second winding wheel is achieved through the second winding wheel. Thus, synchronous braking of the first reel and the second reel can be achieved only through one braking action, the total number of parts is correspondingly reduced, the structure is simple, and braking synchronism and consistency are high.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more particularly to a handpiece and endoscope. Background Technology

[0002] A medical endoscope is a medical diagnostic instrument that can be inserted into a patient's body through natural orifices and / or surgical incisions to examine cavities that communicate with the outside world (such as the digestive tract, respiratory tract, and urinary tract) or are closed cavities (such as the thoracic cavity, abdominal cavity, and joint cavity). The endoscope includes an insertion section through which the desired image is obtained. In related technologies, the handle adjusts the insertion angle of the insertion section via angle adjustment modules, and multiple angle adjustment modules are incorporated within the handle to improve the flexibility of angle adjustment. However, these multiple angle adjustment modules need to be individually engaged to fix the angle of the insertion section, resulting in a complex structure, high manufacturing precision requirements, and increased handle size due to their larger footprint, making them inconvenient for users. Summary of the Invention

[0003] This invention provides a handle and an endoscope to solve the technical problem of how to provide a simple structure for activating multiple angle adjustment modules.

[0004] The technical solution of this invention is implemented as follows: This invention provides a handle, comprising: a housing having a mounting cavity; a first angle adjustment module including a first winding wheel rotatably connected to the housing and a first rope fixed to the first winding wheel, a portion of the first winding wheel being disposed within the mounting cavity and for winding the first rope; a second angle adjustment module including a second winding wheel rotatably connected to the housing and a second rope fixed to the second winding wheel, a portion of the first winding wheel being disposed within the mounting cavity and for winding the second rope; the second winding wheel being sleeved outside the first winding wheel, with the winding portion of the second rope located above or below the winding portion of the first rope; and a braking module located outside the mounting cavity and at least partially movably connected to the housing; the braking module being sleeved outside the second winding wheel and switching between a braking state pressing the second winding wheel and a release state spaced apart from the second winding wheel, so as to achieve synchronous braking or release of the first winding wheel and the second winding wheel through the second winding wheel.

[0005] In some embodiments, the braking module includes: a brake hub, fixedly connected to the housing, the brake hub being sleeved on the outside of the second winding wheel and spaced apart from the second winding wheel in the radial direction; a brake pad, slidably connected to the brake hub; and a brake handle, rotatably connected to the brake hub and sleeved on the outside of the brake hub; wherein, in the released state, the brake handle is spaced apart from the brake pad in the radial direction of the second winding wheel, and the brake pad does not apply force to the second winding wheel; in the braking state, the brake handle abuts against the brake pad in the radial direction of the second winding wheel and drives the brake pad to press against the second winding wheel.

[0006] In some embodiments, the brake hub has a guide groove, the brake pad is disposed in the guide groove, and slides reciprocally along the radial direction of the second winding wheel.

[0007] In some embodiments, a plurality of brake pads are provided, each brake pad being disposed within a guide groove, and the plurality of brake pads being spaced apart circumferentially along the second winding wheel.

[0008] In some embodiments, the brake handle includes: a sleeve portion rotatably connected to the housing and spaced radially from the brake hub; a force-bearing portion protruding from the outer side of the sleeve portion; and a protruding portion protruding from the inner side of the sleeve portion; wherein, in the braking state, the protruding portion abuts against the brake pad; and in the release state, the protruding portion is spaced apart from the brake pad.

[0009] In some embodiments, the second winding wheel includes: a body sleeved on the outside of the first winding wheel and spaced apart from the first winding wheel; a winding portion connected to one end of the body and connected to the second rope within the mounting cavity; a deformation portion disposed on the body and capable of radial deformation along the body; in the braking state, the brake pad is driven to abut against the deformation portion, and the deformation portion deforms radially inward and presses against the first winding wheel; in the release state, the brake pad is in a free state, the deformation portion recovers its deformation, and is spaced apart from the first winding wheel.

[0010] In some embodiments, the body has a through groove that extends through the outer and inner sides of the body, and the deformable part is disposed in the through groove; and / or, the deformable part has a deformation groove, the groove depth of which is less than the thickness of the deformable part, the deformation groove is formed on at least one side of the deformable part, and is located at least at the edge where the deformable part connects to the body.

[0011] In some embodiments, a plurality of deformable portions are provided and are spaced apart along the circumference of the body, and the number of brake pads is the same as that of the deformable portions, and they correspond one-to-one.

[0012] In some embodiments, the first angle adjustment module further includes a first knob, the first knob being fixedly connected to the end of the first winding wheel away from the first rope, and driving the first winding wheel to rotate relative to the housing; and / or, the second angle adjustment module further includes a second knob, the second knob being fixedly connected to the end of the second winding wheel away from the second rope, and driving the second winding wheel to rotate relative to the housing.

[0013] In some embodiments, the handle further includes a spool bracket, which is fixedly connected to the housing. The first winding wheel passes through the spool bracket and rotates relative to the spool bracket. A first elastic noise reduction ring is provided between the upper end face of the winding bracket and the second winding wheel, and / or a second elastic noise reduction ring is provided between the lower end face of the winding bracket and the first winding wheel.

[0014] In some embodiments, the housing includes a front shell and a rear shell that are interlocked and detachably connected, the front shell being rotatably connected to the second winding wheel, and the rear shell being rotatably connected to the first winding wheel.

[0015] In some embodiments, a third elastic noise reduction ring is provided between the first winding wheel of the front shell, and / or a fourth elastic noise reduction ring is provided between the rear shell and the second winding wheel.

[0016] This invention also provides an endoscope, including an insertion part and the aforementioned handle, wherein the insertion part is connected to the first winding wheel via the first rope and to the second winding wheel via the second rope.

[0017] In the handle provided by this invention, at least a portion of the second winding wheel can be configured to be radially deformable. In the released state, the two winding wheels are radially spaced and can rotate independently. In the braking state, the braking module presses against the outer second winding wheel, forcing the radially deformable area of ​​the second winding wheel to deform inward, thereby contacting and applying a clamping force to the inner first winding wheel. Ultimately, the two winding wheels brake simultaneously due to friction, achieving the effect of synchronously braking two winding wheels using a single braking module. By using the radially deformable portion of the second winding wheel as an intermediary, synchronous braking of the first and second winding wheels can be achieved with only one braking action. The total number of parts is correspondingly reduced, the structure is simple, and the convenience of production and assembly is improved. Furthermore, the synchronous braking of the first and second winding wheels has high braking synchronicity and consistency, reducing the risk of time or force differences that may occur due to separate braking, and also improving the overall reliability and stability of the handle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the handle provided in an embodiment of the present invention; Figure 2 yes Figure 1 A top view of the handle in the image; Figure 3 yes Figure 2 A cross-sectional view along the AA direction; Figure 4 This is a schematic diagram of the structure for removing the first and second knobs from the handle provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the second winding wheel provided for an embodiment of the present invention; Figure 6 This is an exploded view of the braking module provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Housing; 11. Mounting cavity; 12. Front housing; 13. Third elastic noise reduction ring; 14. Fourth elastic noise reduction ring; 2. First angle adjustment module; 21. First winding wheel; 22. First rope; 23. First knob; 3. Second angle adjustment module; 31. Second winding wheel; 311. Body; 3111. Through groove; 312. Winding part; 313. Deformation part; 3131. Deformation groove; 32. Second rope; 33. Second knob; 4. Braking module; 41. Brake hub; 411. Guide groove; 42. Brake pad; 43. Brake handle; 431. Sleeve part; 432. Force-bearing part; 433. Protrusion; 5. Thread wheel bracket; 51. First elastic noise reduction ring; 52. Second elastic noise reduction ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this invention will not be described separately.

[0022] In the following description, the terms "first," "second," "etc." are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the directions under normal use, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use.

[0023] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0024] like Figure 1As shown, the present invention provides a handle for adjusting the insertion angle of an insertion part (not shown) in an endoscope. The handle includes a housing 1, a first angle adjustment module 2, a second angle adjustment module 3, and a braking module 4. The housing 1 is the main support structure of the mechanism, and an installation cavity 11 is formed inside the housing 1, which is a space for accommodating other functional components. The first angle adjustment module 2 includes a first winding wheel 21 and a first rope 22. The first winding wheel 21 is rotatably connected to the housing 1, and the first rope 22 is fixed to the first winding wheel 21. The first winding wheel 21 is a wheel-shaped component for winding the rope, and the first rope 22 is a flexible traction component. At least a portion of the first rope 22 is wound and fixed on the first winding wheel 21, so the first rope 22 can rotate with the rotation of the first winding wheel 21. A portion of the structure of the first winding wheel 21 is located within the installation cavity 11 and is used for winding the first rope 22. The second angle adjustment module 3 includes a second winding wheel 31 and a second rope 32. The second winding wheel 31 is rotatably connected to the housing 1, and the second rope 32 is fixed to the second winding wheel 31. The second winding wheel 31 is another wheel-shaped component for winding the rope, and the second rope 32 is another flexible traction component. A portion of the second rope 32 is wound around and fixed on the second winding wheel 31, so the second rope 32 can rotate with the rotation of the second winding wheel 31.

[0025] like Figure 2 and Figure 3 As shown, the winding portion of the second rope 32 is located above or below the winding portion of the first rope 22, forming a layered rope arrangement. Both the first rope 22 and the second rope 32 are connected to the insertion part in the endoscope; therefore, rotating the first rope 22 and the second rope 32 can adjust the insertion angle of the insertion part. Similarly, braking the first winding wheel 21 and the second winding wheel 31 can lock the insertion angle of the insertion part.

[0026] like Figure 4 and Figure 5As shown, the braking module 4 is a component used to implement the locking function. The braking module 4 is located outside the mounting cavity 11, and at least a portion of the braking module 4 is movably connected to the housing 1 by sliding or rotating. The second winding wheel 31 is sleeved outside the first winding wheel 21, and the braking module 4 is sleeved outside the second winding wheel 31. The braking module 4 can switch between a braking state that presses against the outer wall of the second winding wheel 31 and a released state that maintains a distance from the outer wall of the second winding wheel 31. Specifically, at least a portion of the second winding wheel 31 (e.g., the deformable portion 313) can be configured to deform radially. In the braking state, this portion is pressed by the braking module 4 and undergoes inward radial deformation, thereby contacting and pressing against the first winding wheel 21. Thus, by sleeved the second winding wheel 31 outside the first winding wheel 21 and using a braking module 4 sleeved outside the second winding wheel 31 for pressing operation, the effect of simultaneously braking two winding wheels using a single braking module 4 is achieved.

[0027] This invention provides a handle for adjusting and locking the insertion angle of an insertion part. The handle includes a housing 1, a first angle adjustment module 2, a second angle adjustment module 3, and a braking module 4. The housing 1 has a mounting cavity 11. The first angle adjustment module 2 includes a first winding wheel 21 rotatably connected to the housing 1 and a first rope 22 fixed to the first winding wheel 21. A portion of the first winding wheel 21 is located within the mounting cavity 11 and is wound around the first rope 22. The second angle adjustment module 3 includes a second winding wheel 31 rotatably connected to the housing 1 and a second rope 32 fixed to the second winding wheel 31. A portion of the first winding wheel 21 is located within the mounting cavity 11 and is wound around the second rope 32. The second winding wheel 31 is sleeved outside the first winding wheel 21, and the winding portion of the second rope 32 is located above or below the winding portion of the first rope 22. The braking module 4 is located outside the mounting cavity 11 and is at least partially movably connected to the housing 1. The braking module 4 is sleeved outside the second winding wheel 31 and switches between a braking state that presses the second winding wheel 31 and a release state that is spaced apart from the second winding wheel 31, so as to realize the synchronous braking or release of the first winding wheel 21 and the second winding wheel 31 through the second winding wheel 31.

[0028] Thus, in the released state, the two winding wheels are radially spaced and can rotate independently. In the braking state, the braking module 4 presses against the outer second winding wheel 31, forcing the radially deformable area of ​​the second winding wheel 31 to deform inward, thereby contacting and applying a clamping force to the inner first winding wheel 21, ultimately causing both winding wheels to brake simultaneously due to friction. By using the radially deformable part of the second winding wheel 31 as an intermediary, synchronous braking of the first winding wheel 21 and the second winding wheel 31 can be achieved with only one braking action, correspondingly reducing the total number of parts, simplifying the structure, and improving the convenience of production and assembly. This simplified mechanism design makes the handle manufacturing process more efficient, reduces production costs, and also provides convenience for subsequent maintenance. Furthermore, this design improves the synchronicity and consistency of the braking process of the two winding wheels, reduces the risk of time or force differences that may occur due to separate braking, and improves the overall reliability and stability of the handle.

[0029] In some embodiments, such as Figure 4 and Figure 6 As shown, the braking module 4 includes a brake hub 41, brake pads 42, and a brake handle 43. The brake hub 41 is the base structure of the braking module 4 and is fixedly connected to the housing 1. Specifically, the brake hub 41 is fixedly connected to the housing 1 by screws, snap-fit, or adhesive. The brake hub 41 is sleeved outside the second winding wheel 31, and the brake hub 41 is radially spaced from the second winding wheel 31. It should be noted that since the second winding wheel 31 is sleeved outside the first winding wheel 21, and the brake hub 41 is sleeved outside the second winding wheel 31, the radial directions of the first winding wheel 21, the second winding wheel 31, and the brake hub 41 are consistent, all in the direction of the extension line extending outward along the rotation axis of the first winding wheel 21.

[0030] Brake pad 42 is the component that directly performs the braking action. Brake pad 42 is slidably connected to brake hub 41. Specifically, brake pad 42 and brake hub 41 are slidably connected through a groove, guide rail, or guide hole, allowing brake pad 42 to move radially along the second winding wheel 31. Brake handle 43 is the user-operated component. Brake handle 43 is rotatably connected to brake hub 41 and is sleeved on the outside of brake hub 41. In the braking state, brake handle 43 rotates to a position where it abuts against brake pad 42 radially along the second winding wheel 31, driving brake pad 42 to move radially inward, thereby pressing against the second winding wheel 31. In the released state, brake handle 43 maintains a distance from brake pad 42 radially along the second winding wheel 31. At this time, brake pad 42 is in a free state without force and does not exert force on the second winding wheel 31. In this state, the brake pad 42 may or may not be in contact with the second winding wheel 31. However, even if the brake pad 42 is in contact with the second winding wheel 31, the brake pad 42 cannot apply an effective clamping force to the second winding wheel 31 because the brake handle 43 is spaced apart from the brake pad 42.

[0031] Thus, in the released state, there is no effective force between the brake pad 42 and the second winding wheel 31, ensuring that both winding wheels can rotate freely and be adjusted at their respective angles. When locking is required, the user only needs to operate a single brake lever 43, rotating it and radially pushing the brake pad 42 to transmit braking force to the second winding wheel 31, achieving synchronous braking of the first winding wheel 21 and the second winding wheel 31. This design achieves synchronous braking of two nested winding wheels through the simple action of a single brake lever 43, significantly reducing the number of operating parts while ensuring braking effect, simplifying the operation process, making the overall mechanism more concise and reliable, and improving the user experience.

[0032] In some embodiments, such as Figure 4 and Figure 6 As shown, the brake hub 41 has a guide groove 411. The guide groove 411 is a groove structure formed on the brake hub 41, and the extending direction of the guide groove 411 is consistent with the radial direction of the second winding wheel 31. The brake pad 42 is disposed in the guide groove 411 and slides back and forth radially along the second winding wheel 31. It can be understood that the shape of the brake pad 42 is adapted to the guide groove 411, and the cross-sectional shape of the guide groove 411 can be rectangular, trapezoidal, or dovetail-shaped, as long as the guide groove 411 can restrict the sliding trajectory of the brake pad 42.

[0033] Thus, by creating a guide groove 411 on the brake hub 41 and constraining the brake pad 42 within this guide groove 411, a precise path is provided for the movement of the brake pad 42. This structure ensures that the brake pad 42, driven by the brake handle 43, can only move strictly along the radial straight line of the second winding wheel 31, and cannot rotate or deviate relative to the brake hub 41 in the circumferential direction. This ensures that when the brake pad 42 presses against the second winding wheel 31, the direction of its force is always perpendicular to the outer wall of the second winding wheel 31, improving the efficiency and stability of braking force transmission. At the same time, it reduces the possibility of uneven wear or jamming of the brake pad 42 due to circumferential rotation, improving the reliability and service life of the braking module 4. In some embodiments, such as Figure 4 and Figure 6 As shown, multiple brake pads 42 are provided. Each brake pad 42 is independently disposed in a guide groove 411, and the multiple brake pads 42 are evenly distributed at intervals along the circumference of the second winding wheel 31. The number of brake pads 42 can be two, three or more. These brake pads 42 together with the brake hub 41 form a component, and are modularly assembled onto the housing 1 during assembly.

[0034] Thus, by setting multiple brake pads 42 spaced circumferentially and providing an independent guide groove 411 for each brake pad 42 on the brake hub 41, a multi-point synchronous braking mechanism is formed. This design allows the braking force to be applied evenly to the circumference of the second winding wheel 31, reducing the potential for uneven loading and localized stress concentration caused by single-point braking, and improving the smoothness and reliability of braking. Furthermore, the multiple brake pads 42 and the brake hub 41 are integrated into a single component, allowing this component to be assembled as a single module. This modular assembly method simplifies the final assembly process, reduces the risk of missing or incorrectly assembled parts during final assembly, and significantly improves production efficiency and the consistency of assembly quality.

[0035] In some embodiments, such as Figure 4 and Figure 6As shown, the brake lever 43 includes a sleeve portion 431, a force-receiving portion 432, and a protrusion portion 433. The sleeve portion 431 is the basic component connecting the brake lever 43 to the housing 1. The sleeve portion 431 is rotatably connected to the housing 1 and is radially spaced from the brake hub 41. The force-receiving portion 432 is a user-operable part. The force-receiving portion 432 protrudes outward relative to the sleeve portion 431, forming a structure that facilitates gripping or flicking. The protrusion portion 433 is the driving part. The protrusion portion 433 protrudes inward relative to the sleeve portion 431. In the braking state, the protrusion portion 433 abuts against the brake pad 42 to convert rotational motion into radial thrust on the brake pad 42. In the released state, the protrusion 433 is spaced apart from the brake pad 42, thereby releasing the drive on the brake pad 42, so that the brake pad 42 is in a free state and cannot exert force on the second winding wheel 31, thereby releasing the brake of the second winding wheel 31 on the first winding wheel 21.

[0036] Thus, the rotatable connection between the sleeve 431 and the housing 1 provides a stable rotational fulcrum for the entire brake handle 43, ensuring reliable movement. The protruding design of the force-bearing part 432 allows the user to easily apply operating force, improving ease of operation. As a driving element, the protruding part 433 can accurately convert the rotational motion of the brake handle 43 into radial thrust on the brake pad 42, achieving effective conversion of motion mode. This multi-functional brake handle 43 design ensures reliable braking while optimizing the user's operating experience.

[0037] Specifically, the sleeve 431 and the housing 1 are slidably connected through a limiting groove and a snap-fit ​​protrusion. The cooperation between the limiting groove and the snap-fit ​​protrusion also limits the rotational stroke of the brake lever 43, preventing excessive rotation. In this embodiment, the cooperation between the sleeve 431 and the housing 1 through the limiting groove and the snap-fit ​​protrusion not only achieves the function of rotational connection, but also limits the rotational stroke of the brake lever 43. This reduces the possibility of component damage due to excessive rotation and provides the user with clear braking position feedback, improving the operating experience.

[0038] In some embodiments, such as Figures 3-5As shown, the second winding reel 31 includes a body 311, a winding portion 312, and a deformation portion 313. The body 311 is the basic structure of the second winding reel 31, and is sleeved outside the first winding reel 21, with the body 311 spaced apart from the first winding reel 21. The winding portion 312 is the functional part for winding the second rope 32. The winding portion 312 is connected to one end of the body 311, located within the mounting cavity 11, and fixedly connected to the second rope 32. The deformation portion 313 is disposed on the body 311 and can deform radially along the body 311. Specifically, the deformation portion 313 is made of an elastic material or through a structural thinning design, enabling the deformation portion 313 to elastically deform along the radial direction of the body 311. In the braking state, the brake pad 42 is driven by the brake handle 43 to abut against the deformation part 313. The deformation part 313 deforms radially inward and presses against the first winding wheel 21 inside. In the released state, the brake pad 42 is in a free state, the deformation part 313 returns to its original deformation, and is spaced apart from the first winding wheel 21. At this time, the brake pad 42 can either remain in contact with the deformation part 313 or be spaced apart from it, but since the brake pad 42 is not subjected to a driving force, it cannot apply a force to the deformation part 313.

[0039] Thus, the elastic properties of the deformation section 313 enable it to establish frictional contact with the first winding wheel 21 through radial deformation during braking, while automatically restoring its shape during release, ensuring that the two winding wheels resume independent movement. This design allows the pressing action of a single brake pad 42 on the second winding wheel 31 to be transmitted through the deformation of the deformation section 313, simultaneously achieving the braking effect on both winding wheels. The elastic recovery characteristics of the deformation section 313 ensure the reliability of brake release and reduce the possibility of mutual interference between the two winding wheels in the non-braking state (i.e., the released state). This structural design achieves functional integration while maintaining the independent movement of each winding wheel in the released state, providing a guarantee for precise angle control, while the compact nested layout helps save space and makes the overall structure more concise.

[0040] In some embodiments, such as Figure 4 and Figure 5 As shown, the body 311 has a through groove 3111. The through groove 3111 is an opening structure that penetrates the wall thickness of the body 311, and the through groove 3111 penetrates both the outer and inner surfaces of the body 311. The deformable part 313 is a structural part formed in the area of ​​the through groove 3111 of the body 311, and the deformable part 313 is disposed within the through groove 3111. The through groove 3111 can be an elongated slot to provide uniform deformation guidance. The material of the deformable part 313 can be the same as that of the body 311, and it can be isolated from other parts by the through groove 3111 to obtain deformation capability; the deformable part 313 can also be made of a different material than the body 311, with a lower elastic modulus, and embedded in the through groove 3111.

[0041] Thus, by creating a through groove 3111 on the body 311 and setting a deformation part 313 within the through groove 3111, the necessary structural space and a clear deformation path are provided for the radial deformation of the deformation part 313. The presence of the through groove 3111 allows the deformation part 313 to produce the expected inward bending deformation with less resistance when subjected to radial pressure from the brake pad 42, reducing the force required for braking operation and making the braking process more effortless and smooth. At the same time, this structural design precisely limits the deformation range to the area of ​​the through groove 3111, avoiding unnecessary deformation of other parts of the second winding wheel 31, ensuring the stability of the winding function and the accuracy of the deformation part 313 returning to its original shape, thereby improving the reliability and repeatability of the braking and release actions.

[0042] In some embodiments, such as Figure 4 and Figure 5 As shown, a deformation groove 3131 is formed on the deformation part 313. The deformation groove 3131 is a groove structure recessed into the surface of the deformation part 313. The groove depth of the deformation groove 3131 is less than the thickness of the deformation part 313. The deformation groove 3131 is formed on the inner surface and / or outer surface of the deformation part 313, and is located at least at the connection edge between the deformation part 313 and the body 311. The deformation groove 3131 can be set as an annular groove surrounding the deformation part 313, or it can be set as multiple parallel straight grooves. When the deformation groove 3131 is formed on the inner surface of the deformation part 313, the edge of the deformation groove 3131 will form a protruding structure that contacts the first winding wheel 21 in the locked state, and contacts the outer surface of the first winding wheel 21. This line contact or small area contact can generate greater local pressure than planar contact, thereby providing greater friction under the same clamping force, enhancing the reliability and stability of the braking effect.

[0043] Thus, by creating deformation grooves 3131 on the surface of the deformation section 313, a structural thin zone is created at a specific location of the deformation section 313, thereby effectively reducing the resistance to radial bending deformation of the deformation section 313 when subjected to pressure from the brake pad 42, making the deformation of the deformation section 313 easier and less labor-intensive. The creation of deformation grooves 3131 also allows stress during the deformation process to be concentrated in a preset area, improving the predictability and consistency of deformation control.

[0044] In some embodiments, such as Figure 4 and Figure 5 As shown, multiple deformation portions 313 are provided. The multiple deformation portions 313 are distributed at intervals along the circumference of the body 311, and the number of deformation portions 313 can be two, three or more. The number of brake pads 42 is the same as that of deformation portions 313, and each brake pad 42 corresponds to one deformation portion 313, forming a one-to-one correspondence.

[0045] Thus, by setting multiple circumferentially spaced deformation sections 313 and configuring a corresponding brake pad 42 for each deformation section 313, a multi-point synchronous braking mechanism is formed. This one-to-one correspondence arrangement ensures that the braking force can be evenly applied to the circumference of the second winding wheel 31, avoiding the off-center load phenomenon that may be caused by single-point braking, and improving the smoothness of the braking process and the uniformity of the braking force distribution. Each brake pad 42 acts independently on the corresponding deformation section 313, so that the second winding wheel 31 can generate uniform radial deformation when braked, thereby forming a comprehensive and stable contact with the first winding wheel 21, further enhancing the reliability of synchronous braking. This many-to-many braking structure design not only improves the braking effect, but also reduces the possibility of the entire braking function being lost due to the failure of a single braking point, improving the working stability and safety of the handle.

[0046] In some embodiments, such as Figure 3 As shown, the first angle adjustment module 2 also includes a first knob 23. The first knob 23 is an external component operated by the user, and the first knob 23 is located at the end of the first winding wheel 21 away from the first rope 22. Figure 3 The upper end of the housing 1 is fixedly connected, and the fixed connection method can be threaded connection, snap-fit ​​connection or keyway fit. The first knob 23 is used to receive the user's rotational operation force and drive the first winding wheel 21 to rotate relative to the housing 1. The outer surface of the first knob 23 can be provided with anti-slip texture or knurling to enhance the friction during operation.

[0047] Thus, by setting the first knob 23 on the first winding reel 21, a direct point of force application is provided for the user. By rotating the first knob 23, the user can precisely control the rotation angle of the first winding reel 21, and then adjust the angle of the external mechanism connected to it via the first rope 22, thereby improving the ease of use and intuitive operation of the handle.

[0048] In some embodiments, such as Figure 3 As shown, the second angle adjustment module 3 also includes a second knob 33. The second knob 33 is an external component operated by the user, and the second knob 33 is located at the end of the second winding wheel 31 furthest from the second rope 32. Figure 3 The upper end of the housing 1 is fixedly connected, and the fixed connection can be achieved through threaded connection, snap-fit ​​connection, or interference fit. The second knob 33 is used to receive the user's rotational force and drive the second winding wheel 31 to rotate relative to the housing 1. The outer surface of the second knob 33 may also be provided with anti-slip texture or knurling to enhance friction during operation.

[0049] Thus, by setting a second knob 33 on the second winding reel 31, a direct point of force application is provided for the user. By rotating the second knob 33, the user can precisely control the rotation angle of the second winding reel 31, and then adjust the angle of the external mechanism connected to it via the second rope 32. This improves the ease of use and intuitive operation of the handle, allowing the user to easily apply rotational force and thus facilitate precise angle adjustment of the second winding reel 31.

[0050] like Figure 3 As shown, when the handle has both a first knob 23 and a second knob 33, the first knob 23 and the second knob 33 can be distributed vertically along the axial direction. The knob located at the bottom and adjacent to the brake module 4 (usually the second knob 33) can be fitted with a rubber ring or a buffer ring made of other elastic material at its mounting part that contacts the housing 1. This can effectively reduce the frictional noise and mechanical wear generated between the second knob 33 and the housing 1 when rotating, and improve the quietness of operation and the durability of the components.

[0051] In some embodiments, such as Figure 1 and Figure 3 As shown, the handle also includes a spool bracket 5. The spool bracket 5 is a component used to support and position the winding spool. The spool bracket 5 is fixedly connected to the housing 1, specifically, by screws, clips, or welding. The shaft portion of the first winding spool 21 passes through the spool bracket 5, and the portion for winding the first rope 22 is located below the body 311. The first winding spool 21 and the spool bracket 5 achieve relative rotation through bearings or shaft holes. A first elastic noise-reducing ring 51 is provided between the upper end face of the spool bracket 5 and the second winding spool 31, and / or a second elastic noise-reducing ring 52 is provided between the lower end face of the spool bracket 5 and the first winding spool 21. Specifically, a first elastic noise reduction ring 51 can be provided only between the upper end face of the spool bracket 5 and the second winding wheel 31, and a second elastic noise reduction ring 52 can be provided only between the lower end face of the spool bracket 5 and the first winding wheel 21. Alternatively, both the first elastic noise reduction ring 51 and the second elastic noise reduction ring 52 can be provided simultaneously between the upper end face of the spool bracket 5 and the second winding wheel 31. The first elastic noise reduction ring 51 and the second elastic noise reduction ring 52 can be made of elastic materials such as rubber, silicone, or polyurethane to reduce direct impact and hard contact between components and lower the wear rate of the contact surfaces.

[0052] Thus, by setting up the spool bracket 5, an independent support structure is provided for the first winding wheel 21, enhancing the stability of the first winding wheel 21 during rotation and reducing the risk of swaying that may occur due to cantilever support. Simultaneously, by setting a first elastic noise-reducing ring 51 between the spool bracket 5 and the second winding wheel 31, and / or setting a second elastic noise-reducing ring 52 between the spool bracket 5 and the first winding wheel 21, an effective vibration and noise suppression system is constructed. These elastic noise-reducing rings can absorb the vibration energy generated by the winding wheel during rotation and braking, reducing frictional noise during mechanism operation and improving the user experience.

[0053] In some embodiments, such as Figure 1 and Figure 3 As shown, housing 1 includes a front housing 12 and a rear housing (not shown) that are interlocked and detachably connected. The front housing 12 and the rear housing are the two main components constituting housing 1. The front housing 12 and the rear housing can be detachably fixed together by means of snap-fit ​​connection, screw connection, or magnetic connection. The front housing 12 is rotatably connected to the second winding wheel 31 through a bearing or shaft hole, providing rotational support for the second winding wheel 31. The rear housing is rotatably connected to the first winding wheel 21 through a bearing or shaft hole, providing rotational support for the first winding wheel 21. Sealing rings or gaskets can be provided on the mating surfaces of the front housing 12 and the rear housing to improve the sealing performance of the mounting cavity 11.

[0054] Thus, by designing the housing 1 as a detachable front shell 12 and rear shell, the front shell 12 and rear shell can be fastened together to close the mounting cavity 11, and the mounting cavity 11 can be opened by disassembling the front shell 12 and rear shell. During assembly, the operator can first assemble the first winding wheel 21 and the second winding wheel 31 within the mounting cavity 11, and then fasten the front shell 12 and rear shell together to complete the overall assembly, reducing assembly difficulty and improving production efficiency. At the same time, the detachable front shell 12 and rear shell design also facilitates subsequent maintenance and repair. When it is necessary to replace the winding wheel or clean the interior, it is only necessary to separate the front shell 12 and rear shell to perform the operation without damaging the overall structure, thus improving the maintainability and service life of the product.

[0055] In some embodiments, such as Figure 3 As shown, a third elastic noise reduction ring 13 is provided between the front shell 12 and the first winding wheel 21, and / or a fourth elastic noise reduction ring 14 is provided between the rear shell and the second winding wheel 31. Specifically, the third elastic noise reduction ring 13 may be provided only between the front shell 12 and the first winding wheel 21, the fourth elastic noise reduction ring 14 may be provided only between the rear shell and the second winding wheel 31, or the third elastic noise reduction ring 13 may be provided between the front shell 12 and the first winding wheel 21, while the fourth elastic noise reduction ring 14 may be provided between the rear shell and the second winding wheel 31.

[0056] The third and fourth elastic noise-reducing rings 13 and 14 are annular components made of elastic materials, such as rubber, silicone, or polyurethane. The third elastic noise-reducing ring 13 is installed at the contact interface between the front housing 12 and the first winding reel 21, and the fourth elastic noise-reducing ring 14 is installed at the contact interface between the rear housing and the second winding reel 31. These elastic noise-reducing rings can be fixed in the mounting grooves of the front or rear housing by interference fit or adhesive bonding.

[0057] Thus, by setting a third elastic noise reduction ring 13 between the front housing 12 and the first winding reel 21, and / or setting a fourth elastic noise reduction ring 14 between the rear housing and the second winding reel 31, an effective vibration and noise suppression system is established at the key moving contact points of the handle. These elastic noise reduction rings can absorb the vibration energy generated by the winding reel during rotation and braking, significantly reducing friction noise during mechanism operation and improving the user experience.

[0058] like Figure 1 As shown, this embodiment of the invention also provides an endoscope, which includes an insertion part and a handle as described in any of the above embodiments. The insertion part is a flexible tubular component of the endoscope used to enter a body cavity, and a camera unit or working channel may be provided at the distal end of the insertion part. The insertion part is connected to a first winding reel 21 via a first rope 22 and to a second winding reel 31 via a second rope 32. Thus, the insertion angle of the insertion part can be adjusted by adjusting the angle of the first rope 22 and the second rope 32.

[0059] Because the endoscope includes the aforementioned handle, it achieves the same technical effect, even though the endoscope possesses precise and reliable multi-directional bending control capabilities. The first winding wheel 21 controls the bending direction of the insertion section in one plane via the first rope 22, and the second winding wheel 31 controls the bending direction of the insertion section in another plane via the second rope 32. The combination of these two directions enables universal adjustment of the insertion section. The synchronous braking function of the handle ensures stable locking of the insertion section's shape at any bending angle, providing a stable field of view and working channel for medical operations. This integrated design allows the endoscope to maintain a simple and compact structure while achieving flexible maneuverability and reliable angle holding capabilities, improving the practicality and operational efficiency of the endoscope in diagnostic and treatment processes.

[0060] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and scope of the present invention are included within the scope of protection of the present invention.

Claims

1. A handle, characterized in that, include: The housing has a mounting cavity. The first angle adjustment module includes a first winding wheel rotatably connected to the housing and a first rope fixed to the first winding wheel. A portion of the first winding wheel is disposed in the mounting cavity and is used for winding the first rope. The second angle adjustment module includes a second winding wheel rotatably connected to the housing and a second rope fixed to the second winding wheel. A portion of the first winding wheel is disposed in the mounting cavity and is used for winding the second rope. The second winding wheel is sleeved on the outside of the first winding wheel, and the winding portion of the second rope is located above or below the winding portion of the first rope. A braking module is located outside the mounting cavity and is at least partially movably connected to the housing. The braking module is sleeved on the second winding wheel and switches between a braking state that presses against the second winding wheel and a release state that is spaced apart from the second winding wheel, so as to realize synchronous braking or release of braking of the first winding wheel and the second winding wheel through the second winding wheel.

2. The handle according to claim 1, characterized in that, The braking module includes: A brake hub is fixedly connected to the housing. The brake hub is sleeved on the outside of the second winding wheel and is spaced apart from the second winding wheel in the radial direction. Brake pads are slidably connected to the brake hub. The brake handle is rotatably connected to the brake hub and is sleeved on the outside of the brake hub; In the released state, the brake handle is spaced apart from the brake pad along the radial direction of the second winding wheel, and the brake pad does not apply force to the second winding wheel; in the braking state, the brake handle abuts against the brake pad along the radial direction of the second winding wheel, and drives the brake pad to press against the second winding wheel.

3. The handle according to claim 2, characterized in that, The brake hub has a guide groove, and the brake pad is disposed in the guide groove and slides back and forth radially along the second winding wheel.

4. The handle according to claim 3, characterized in that, The brake pads are provided in multiple ways, each brake pad is disposed in a guide groove, and the multiple brake pads are arranged at intervals along the circumference of the second winding wheel.

5. The handle according to claim 2, characterized in that, The brake lever includes: The sleeve portion is rotatably connected to the housing and is radially spaced from the brake hub; The force-bearing part protrudes outward relative to the outer side of the sleeve part; The protrusion protrudes from the inner side of the sleeve portion; wherein, in the braking state, the protrusion abuts against the brake pad; and in the releasing state, the protrusion is spaced apart from the brake pad.

6. The handle according to claim 2, characterized in that, The second winding wheel includes: The main body is sleeved on the outside of the first winding wheel and spaced apart from the first winding wheel; The winding part is connected to one end of the main body and is connected to the second rope inside the mounting cavity; A deformable part is provided on the body and can deform radially along the body; In the braking state, the brake pad is driven to abut against the deformed part, and the deformed part deforms radially inward and presses against the first winding wheel; in the releasing state, the brake pad is in a free state, the deformed part recovers its deformation, and is spaced apart from the first winding wheel.

7. The handle according to claim 6, characterized in that, The body has a through groove that passes through the outer and inner sides of the body, and the deformable part is disposed in the through groove. And / or, the deformable part is provided with a deformation groove, the groove depth is less than the thickness of the deformable part, the deformation groove is provided on at least one side of the deformable part, and is located at least at the edge where the deformable part connects to the body.

8. The handle according to claim 6, characterized in that, The deformable parts are provided in multiples and are spaced apart along the circumference of the body. The number of brake pads is the same as that of the deformable parts, and they correspond one-to-one.

9. The handle according to any one of claims 1 to 8, characterized in that, The first angle adjustment module further includes a first knob, which is fixedly connected to the end of the first winding wheel away from the first rope, and drives the first winding wheel to rotate relative to the housing; And / or, the second angle adjustment module further includes a second knob, which is fixedly connected to the end of the second winding wheel away from the second rope, and drives the second winding wheel to rotate relative to the housing.

10. The handle according to any one of claims 1 to 8, characterized in that, The handle also includes a spool bracket, which is fixedly connected to the housing. The first winding spool passes through the spool bracket and rotates relative to the spool bracket. Wherein, a first elastic noise reduction ring is provided between the upper end face of the winding bracket and the second winding wheel, and / or, a second elastic noise reduction ring is provided between the lower end face of the winding bracket and the first winding wheel.

11. The handle according to any one of claims 1 to 8, characterized in that, The housing includes a front shell and a rear shell that are interlocked and detachably connected. The front shell is rotatably connected to the second winding wheel, and the rear shell is rotatably connected to the first winding wheel.

12. The handle according to claim 11, characterized in that, A third elastic noise reduction ring is provided between the first winding wheel of the front shell, and / or a fourth elastic noise reduction ring is provided between the rear shell and the second winding wheel.

13. An endoscope, characterized in that, It includes an insertion part and a handle as described in any one of claims 1 to 12, wherein the insertion part is connected to the first winding reel via the first rope and to the second winding reel via the second rope.

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