Endoscope steering control device, handle and endoscope

Abstract

The present invention provides a steering control device, a handle and an endoscope for an endoscope, and relates to the technical field of endoscopes. The present invention includes a toggle member, which is movably connected to the shell of the endoscope and is located on a side of the shell close to the traction wheel control part; a linkage member is connected to the insertion part; a transmission member is used to connect the toggle member and the linkage member, and is used to convert the movable stroke of the toggle member into the rotation stroke of the linkage member to realize the rotation control of the insertion part along the axial direction. Compared with the existing technology, the present invention has the advantages of improving the flexibility of the operation of the insertion part of the endoscope and facilitating the operator to accurately control the rotation of the insertion part.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, and in particular to a steering control device of an endoscope, a handle and an endoscope. Background Art

[0002] In endoscope applications, the operational precision of the insertion section is crucial to the effectiveness of diagnosis and treatment. The design of the insertion section of an endoscope typically needs to be adjusted to the curved paths of the human body's cavities, necessitating axial rotation of the insertion section. Current rotation control methods typically rely on handle operation, where one hand holds the endoscope handle and the other hand rotates the rotating head at the front end of the handle to achieve axial rotation of the insertion section.

[0003] However, in actual application, this operation method has certain disadvantages. First, when operating with both hands, the movement frequencies of the two hands are usually inconsistent, which can easily lead to jitter during the operation, affecting the precise control of the insertion part and causing discomfort to the patient. Second, when the operator is performing rotational control of the insertion part, he usually needs to maintain the coordination of both hands, which will limit the freedom of the other hand, making it unable to perform other operations when needed, thus affecting the flexibility and efficiency of the operation. Summary of the Invention

[0004] In order to improve the flexibility of the operation of the insertion part of the endoscope and facilitate the operator to accurately control the rotation of the insertion part, the present application provides a steering control device, a handle and an endoscope of the endoscope.

[0005] In a first aspect, the present application provides a steering control device for an endoscope, which adopts the following technical solution:

[0006] A steering control device for an endoscope, comprising:

[0007] A toggle member, the toggle member is movably connected to the housing of the endoscope and is located on a side of the housing close to the traction wheel control portion;

[0008] a linkage member connected to the insertion portion;

[0009] A transmission member is used to connect the toggle member and the linkage member, and to convert the movable stroke of the toggle member into the rotation stroke of the linkage member to achieve rotation control of the insertion portion along the axial direction.

[0010] Preferably, the toggle member includes a toggle part and a pulley, the toggle part is rotatably mounted on the shell, the toggle part is connected to the pulley to drive the pulley to rotate, the transmission member includes an operating rope, the fixed end of the operating rope is wound around the pulley, and the output end of the operating rope is arranged on the linkage member.

[0011] Preferably, the dialing portion includes an operating wheel, the operating wheel, the wire wheel and a dial wheel of an operating traction wheel on the housing are coaxially arranged, and the operating wheel is located outside the housing.

[0012] Preferably, the operating wheel and the line wheel are plugged into each other, and a limit block and a limit groove are respectively provided at the plugging portion thereof along the radial direction of the line wheel, wherein the limit block is located on the operating wheel or the line wheel, and the limit groove is correspondingly located on the operating wheel or the line wheel to achieve limited cooperation, a first rubber block is provided in the limit groove, and the two side walls of the limit block along the rotation direction of the operating wheel are abutted against the first rubber block;

[0013] And / or, the operating wheel and the thumbwheel of the operating traction wheel on the housing are arranged at opposite positions on the same side or on both sides of the housing.

[0014] Preferably, the linkage member includes a gear set and a rack, wherein the gear set is provided with at least one group, the gear set includes a pair of bevel gears meshing with each other, the pair of bevel gears are each rotatably connected to the shell and coaxially fixedly connected to the insertion part, the bevel gears rotatably connected to the shell are provided with an annular tooth groove along the circumferential direction, the rack is meshed with the annular tooth groove, and the rack is connected to the output end of the operating rope.

[0015] Preferably, a reset member is included, which is connected to at least one of the toggle member, the linkage member and the transmission member, and is used to restore the toggle member, the linkage member and the transmission member to their initial state after the toggle member drives the insertion part to rotate to a certain angle.

[0016] Preferably, a limiting ring is provided on the housing, the spool is coaxially rotatably arranged in the limiting ring, the operating rope is provided in a pair, the pair of operating ropes are passed through the limiting ring, a guide block is detachably mounted on the limiting ring, the guide block has a pair of guide parts, the guide parts extend into the wire groove of the spool, the guide parts are arranged in an arc shape, the pair of guide parts are respectively connected to the pair of operating ropes, and are tangent to the position where the operating ropes pass through the limiting ring;

[0017] And / or, the operating rope is provided as a pair, and the rack is also provided as a pair and is correspondingly connected to the output ends of the pair of operating ropes, the reset member includes a spring, the spring is located in the shell near the position of the pair of racks, the spring is connected to the rack, and when the spring is in a free form, the lens at the front end of the insertion part is in a straightened state.

[0018] Preferably, the invention further comprises a locking member, the locking member comprising a dial plate and a second elastic portion, the dial plate being slidably disposed on the housing along the axial direction of the operating wheel, the dial plate having a latching portion which is latched on the housing and is used to restrict the dial plate from rotating with the operating wheel, the second elastic portion being disposed on the housing and being used to drive the dial plate and the operating wheel to abut against each other, and the contact surface between the dial plate and the operating wheel is a rough surface;

[0019] And / or, a pair of the bevel gears are arranged in a pair, one large and one small, wherein the large bevel gear is mounted on the insert portion and the small bevel gear is rotatably mounted on the housing;

[0020] And / or, a fixed sleeve is provided on the portion of the insertion portion located inside the housing, the hard tube is rotatably connected to the front end of the housing, and the hard tube is coaxially fixedly connected to the bevel gear installed on the insertion portion.

[0021] In a second aspect, the present application provides an endoscope handle, which adopts the following technical solution:

[0022] An endoscope handle comprises an endoscope steering control device described in the above technical solution.

[0023] In a third aspect, the present application provides an endoscope, which adopts the following technical solution:

[0024] An endoscope comprises an endoscope handle according to the above technical solution.

[0025] The present invention has the following advantages and beneficial effects:

[0026] (1) First, the flexibility of the operation of the insertion part of the endoscope is improved. By movably connecting the toggle with the shell of the endoscope and placing it on the side close to the traction wheel control part, the operator only needs to control the traction wheel with one hand and then touch the toggle with his fingers to achieve rotational control of the insertion part. This design greatly simplifies the operation process and reduces the dependence on two hands.

[0027] Second, it frees up the operator's hands. Traditional endoscope operation requires the operator to use both hands to control different components to adjust the rotation of the insertion portion. However, the present invention integrates the toggle member with the traction wheel control position, freeing the operator's other hand, thereby improving operational efficiency. The convenience brought by one-handed operation is particularly significant in space-constrained or difficult operating environments.

[0028] Third, it improves precise control. Through the design of the transmission components, the travel of the toggle element is precisely converted into the rotational travel of the linkage element. This design ensures smooth and precise control of the insertion section's rotation. The operator can precisely control the insertion section's rotation angle while maintaining control of the traction wheel, avoiding discomfort or injury caused by inaccurate operation and enhancing the safety and effectiveness of endoscopic operation.

[0029] In summary, the present invention achieves high flexibility and accuracy in endoscopic operation by optimizing the collaborative working mode of the toggle member, linkage member and transmission member, significantly improving operational efficiency and comfort, and has significant advantages, especially in complex medical environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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 these drawings without paying any creative work.

[0031] Figure 1 It is a schematic diagram intended to show the overall structure of an endoscope.

[0032] Figure 2 It is a schematic diagram intended to show the structure inside the shell of an endoscope.

[0033] Figure 3 It is a structural diagram intended to show the linkage parts and operating ropes.

[0034] Figure 4 This is an exploded view showing the linkage, insert, and spring.

[0035] Figure 5 This is a cross-sectional view intended to show the housing of the endoscope cut along the rotation axis.

[0036] Figure 6 An exploded view showing the toggle, pulley, thumbwheel, and locking element.

[0037] Figure 7 This is an exploded view showing the operating wheel and locking parts.

[0038] Figure 8 It is a schematic diagram showing the structure of the reel installed in the limiting ring.

[0039] Figure 9 This is an exploded view showing the reel, guide block, and housing.

[0040] Figure 10 yes Figure 9Enlarged view of part A.

[0041] Figure 11 It is a structural diagram intended to show the plug-in relationship between the wire wheel and the operating wheel.

[0042] The following are marked in the figure:

[0043] 1. Housing; 10. Rotating shaft; 11. Traction wheel; 111. Pulley; 12. Limiting ring; 121. Wire groove; 122. Accommodating groove; 1221. Column groove; 13. Wire clamping plate; 14. Positioning groove; 15. Guide rail; 16. Support; 2. Insertion portion; 21. Hard tube; 3. Pulley; 31. Pulley portion; 311. Operating wheel; 3111. Limiting groove; 3112. First rubber block; 32. Wire pulley; 321. Plug slot; 3211 , limit block; 4, linkage part; 41, gear set; 411, bevel gear; 4111, annular tooth groove; 42, rack; 5, transmission part; 51, operating rope; 511, fixed end; 512, output end; 52, rope loop; 6, guide block; 61, guide part; 611, plug column; 7, locking part; 71, toggle plate; 711, locking part; 7111, friction pattern; 72, second elastic part; 721, coil spring; 8, reset part; 81, spring. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0045] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0046] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0047] In modern medicine, endoscopes are important diagnostic and therapeutic tools, particularly in minimally invasive surgery. Their core function is to help doctors observe and manipulate internal organs and tissues through precise control. An endoscope typically consists of a slender, tubular insertion portion 2 and a manipulable operating handle. The operator adjusts the handle's controls (such as the lever, dial 111, and front rotating head) to control the bending and axial rotation of the front end of the insertion portion 2, thereby adjusting the angle and position of the endoscope's lens, achieving precise three-dimensional control of the lens in space. This control method allows doctors to precisely guide the lens to the affected area for examination or treatment.

[0048] However, after clinical application and operational feedback, the applicant found that the currently commonly used rotation control method for the endoscope insertion part 2 has some limitations. Usually, the rotation control requires the operator to hold the endoscope handle with one hand, while the other hand is responsible for rotating the rotating head at the front end of the handle to achieve the rotation of the insertion part 2. However, this operation method has several problems: First, due to the poor coordination of the movements of the two hands, shaking is likely to occur during the operation, resulting in unstable rotation of the insertion part 2, thereby affecting precise control and may cause discomfort to the patient. Secondly, the traditional operation method requires both hands to maintain coordination and cooperation, which limits the freedom of movement of the other hand, making it restricted when other operations are required, reducing the flexibility and efficiency of the operation.

[0049] In view of the above problems, the design of the endoscope needs to ensure operational accuracy while enhancing flexibility. To this end, the applicant has proposed an improved solution for optimizing the steering control of the insertion portion 2 of the endoscope.

[0050] The following combination Figures 1 to 11 The steering control device, handle and endoscope of an endoscope provided in the embodiments of the present application are described in detail through specific embodiments and their application scenarios.

[0051] A steering control device for an endoscope includes core components such as a toggle member 3, a linkage member 4, and a transmission member 5. The toggle member 3 is movably connected to the housing 1 of the endoscope. The movable connection can be a sliding connection or a rotating connection and is located on the side of the housing 1 close to the control part of the traction wheel 11. The traction wheel 11 is rotatably connected to the housing 1 through a rotating shaft 10. The traction wheel 11 is used to pull the traction rope to drive the bending angle of the lens holder at the front end of the insertion part to swing.

[0052] The linkage member 4 is connected to the insertion portion 2 and transmits the motion signal of the toggle member 3 to the insertion portion 2, thereby controlling the rotation of the insertion portion 2. The linkage member 4 can precisely adjust the rotation direction of the insertion portion 2 according to the movement of the toggle member 3, ensuring that the endoscope can be flexibly and freely operated within the body cavity.

[0053] The transmission member 5 connects the toggle member 3 and the linkage member 4, and converts the movable travel of the toggle member 3 into the rotational travel of the linkage member 4. In this way, the linear motion (such as sliding or rotation) of the toggle member 3 can be accurately converted into the rotational motion output of the linkage member 4 through the transmission member 5, thereby controlling the axial rotation of the insertion portion 2.

[0054] Specifically, the toggle member 3 includes a toggle portion 31 and a pulley 32. The toggle portion 31 is rotatably mounted on the housing 1 and is connected to the pulley 32 to drive the rotation of the pulley 32. The rotation of the pulley 32 is controlled by the transmission member 5 (operating cord 51). The fixed end 511 of the operating cord 51 is wound around the pulley 32, and the traction of the operating cord 51 transmits the motion to the linkage member 4. The output end 512 of the operating cord 51 is disposed on the linkage member 4. The linkage member 4 drives the rotation of the insertion member 2 in response to the traction of the operating cord 51, thereby achieving precise control of the insertion member 2.

[0055] In this design, the pulley 32 plays a key role. Rotation of the toggle portion 31 drives the pulley 32, which in turn drives the operating cord 51. Because the fixed end 511 of the operating cord 51 is wound around the pulley 32, the rotation of the pulley 32 pulls the operating cord 51, causing the linkage 4 to move accordingly, thereby adjusting the rotation angle of the insertion portion 2. This design effectively reduces the manual effort, allowing the operator to perform complex rotational control of the insertion portion 2 by simply rotating the toggle portion 31.

[0056] As an alternative embodiment, the toggle portion 31 can be designed as a toggle block slidably connected to the housing 1. The toggle block is connected to the operating cord 51, and pulling the toggle block pulls the operating cord 51, thereby driving the movement of the linkage 4. This design offers more operational options than the traditional rotating toggle portion 31, allowing the operator to select a more suitable operating mode. The sliding connection of the toggle block provides more flexible control, adapting to different hand shapes and hand strength requirements.

[0057] As a preferred embodiment, refer to Figure 5 and Figure 6As shown, the toggle portion 31 includes an operating wheel 311, and the operating wheel 311, the wire pulley 32 and the thumbwheel 111 of the operating traction wheel 11 on the housing 1 are coaxially arranged. The operating wheel 311 is located outside the housing 1 and is rotatably sleeved on the rotating shaft 10. The operating wheel 311 is arranged close to one side of the housing 1 of the endoscope. The thumbwheel 111 fits tightly on the operating wheel 311 and is away from one side of the housing 1. In order to meet the torque requirements required for the rotation of the insertion portion 2, the size of the operating wheel 311 is slightly larger than the thumbwheel 111. This design is mainly due to the fact that the overall volume of the insertion portion 2 is relatively large, and a larger torque is required to effectively drive the insertion portion 2 to rotate. Therefore, the larger design of the operating wheel 311 can generate greater torque during operation, thereby providing more precise and easy control.

[0058] Furthermore, the position and size of the operating wheel 311 also require special considerations. Positioned close to the housing 1, the operating wheel 311 can produce a significant rotational effect with a relatively small amount of movement, effectively reducing the operator's operational burden. The appropriate size of the operating wheel 311, combined with a well-designed rotation axis, enables smoother and more stable rotational control, particularly when delicate manipulation is required. The operator can control the rotation of the endoscope insertion portion 2 with relatively little force.

[0059] The endoscope is typically operated with the operator's left hand. The left hand grasps the endoscope housing 1 near the operating wheel 311, with the thumb placed on one side and the index, middle, and ring fingers on the other. By simultaneously rotating the operating wheels 311 in opposite directions, the insertion portion 2 can be precisely controlled. This finger-operated design is a mature and widely used design and will not be elaborated upon here.

[0060] Reference Figure 6 and Figure 11As shown, the operating wheel 311 and the spool 32 are connected to each other by plugging, and the plug-in portion is provided with a limit block 3211 and a limit slot 3111 along the radial direction of the spool 32. Specifically, the limit block 3211 is provided on the operating wheel 311 or the spool 32, and the limit slot 3111 is located in the other corresponding component (the operating wheel 311 or the spool 32). In this embodiment, the spool 32 is provided with a plug-in slot 321, and a plurality of limit blocks 3211 are integrally provided along the circumference and located within the plug-in slot 321. The limit slots 3111 are provided on the operating wheel 311 and correspond one-to-one with the limit blocks 3211. This design achieves a limited fit, effectively avoiding excessive rotation or slippage, and ensuring a precise connection between the two. In order to alleviate the jamming phenomenon that may occur during the rotation of the insertion part 2, a first rubber block 3112 is installed in the limiting groove 3111, and the two side walls of the limiting block 3211 along the rotation direction of the operating wheel 311 are in contact with the first rubber block 3112. This structural design mainly takes into account the large overall volume of the endoscope insertion part 2 and the strong inertia during rotation. If there is no appropriate buffering mechanism, the insertion part 2 may jam due to uneven rotation, thereby affecting the smoothness of operation. The rubber block is made of hard rubber material with moderate elasticity. The rubber block can effectively buffer the impact force and can be reset, reducing the impact of inertia on the operation and preventing excessive pressure or damage to the equipment due to momentary jamming.

[0061] As an optional embodiment, the operating wheel 311 and the thumbwheel 111 of the operating traction wheel 11 on the housing 1 can be arranged on the same side of the housing 1 or on opposite sides thereof. Specifically, when the operating wheel 311 and the thumbwheel 111 are located on the same side, the operator can operate the endoscope in the manner described above: with the left hand holding the housing 1 of the endoscope near the operating wheel 311, the thumb is placed on one side of the operating wheel 311, and the index finger, middle finger, and ring finger are placed on the other side of the operating wheel 311, and by simultaneously rotating the operating wheel 311 in opposite directions, the insertion portion 2 can be controlled in rotation.

[0062] When the operating wheel 311 and the thumbwheel 111 are located on opposite sides of the housing 1, the operator needs to place his hand in the middle of the housing 1 and use his thumb to push the operating wheel 311 or thumbwheel 111 to operate. Since the operating wheel 311 and thumbwheel 111 are located on opposite sides, this design can provide greater control and stability.

[0063] Reference Figure 3 and Figure 4As shown, the linkage 4 includes a gear set 41 and a rack 42. At least one gear set 41 is provided. In a specific configuration, to improve operational stability, multiple gear sets 41 are preferably provided to ensure smoother coordinated operation between the gear sets 41 during operation. The gear set 41 includes a pair of intermeshing bevel gears 411, each of which is rotationally connected to the housing 1 and coaxially fixedly connected to the insertion portion 2.

[0064] In the specific design, the bevel gear 411 located on the insertion portion 2 is larger than the bevel gear 411 rotatably connected to the housing 1. The main purpose of this design is to achieve speed reduction and labor saving effects through the setting of the gear ratio. Due to the large size and strong inertia of the insertion portion 2, the use of a larger bevel gear 411 can effectively reduce the rotational torque required by the operator, avoiding excessive rotation angles of the insertion portion 2 when the rack 42 moves slightly, thereby ensuring the accuracy and stability of rotation control. This gear ratio design enables precise rotation control and improves operational flexibility.

[0065] Among them, the bevel gear 411 rotatably connected to the housing 1 is provided with an annular tooth groove 4111 along the circumferential direction, and the rack 42 is meshed with the annular tooth groove 4111. In different embodiments, a gear can also be coaxially fixedly mounted on the bevel gear 411 rotatably connected to the housing 1, and transmission is achieved through the meshing of the gear and the rack 42. The rack 42 is connected to the output end 512 of the operating rope 51, and the operating rope 51 achieves precise rotational control of the insertion portion 2 through the movement of the rack 42. The rack 42 can ensure smooth movement during operation, and the meshing design of the annular tooth groove 4111 and the rack 42 can effectively prevent the rack 42 from jumping or slipping, ensuring the stable operation of the system.

[0066] Furthermore, housing 1 is integrally provided with a guide rail 15 and a support 16, which respectively limit the position of rack 42 and bevel gear 411, which is rotatably connected to housing 1. Guide rail 15 ensures linear motion of rack 42, preventing it from shifting or getting stuck. Support 16 provides support for bevel gear 411, preventing unnecessary vibration or deflection during operation, thereby further improving the accuracy and reliability of the entire steering control system.

[0067] Preferably, the endoscope steering control device includes a reset member 8, which is connected to at least one of the toggle member 3, the linkage member 4, and the transmission member 5. The reset member 8 is used to automatically restore the toggle member 3, the linkage member 4, and the transmission member 5 to their initial state after the toggle member 3 drives the insertion portion 2 to rotate to a certain angle. The function of the reset member 8 is to ensure that after the rotation operation is completed, the entire system can be restored to a stable and reusable state, thereby preparing for the next operation and improving the service life and stability of the device.

[0068] In different embodiments, the reset member 8 can be reset using a pneumatic reset structure, a magnetic reset structure, a hydraulic reset structure, or the like.

[0069] Reference Figure 5 、 Figure 8 and Figure 9 As shown, the housing 1 of the endoscope steering control device includes an integrally formed retaining ring 12. The wire pulley 32 is coaxially mounted within the retaining ring 12 to ensure stable rotation of the wire pulley 32 during operation and smooth release and pulling of the operating cord 51. The retaining ring 12 controls the range of motion of the operating cord 51 and provides a smooth guide path to prevent the cord from becoming stuck or tangled.

[0070] Specifically, the pair of operating ropes 51 slide within their respective loops 52. The loops 52 are fixedly connected to the retaining ring 12 at their ends, ensuring that the operating ropes 51 can be released or pulled smoothly without becoming stuck. To further restrict the position of the operating ropes 51, a retaining rib 13 is mounted on the housing 1. This retaining rib 13 effectively engages with the loops 52, limiting the position of the pair of operating ropes 51 and preventing excessive displacement or unbalanced pulling.

[0071] In addition, a detachable guide block 6 is installed on the limiting ring 12, which can be flexibly disassembled and replaced, and is convenient for maintenance and adjustment. A receiving groove 122 and a wire groove 121 are provided on the limiting ring 12, wherein the receiving groove 122 is used to accommodate the guide block 6, and a plug column 611 is fixedly provided on the guide block 6. The plug column 611 is plugged into the bottom column groove 1221 of the receiving groove 122 to achieve a detachable connection. The design of the guide block 6 can be replaced as needed to ensure the long-term stability and adaptability of the system. The function of the wire groove 121 is to provide a passage path for a pair of operating ropes 51. The connecting end of the rope loop 52 is located at the position of the wire groove 121 to ensure that the operating rope 51 can pass smoothly during the rotation process.

[0072] Reference Figure 10 As shown, the design of the guide block 6 is particularly critical. It features a pair of arc-shaped guide portions 61 that extend into the wire groove 121 of the wire pulley 32. The guide portions 61 are tangential to the exit point of the operating cord 51. This structural design ensures that the operating cord 51 remains smooth and unobstructed as it passes through the retaining ring 12, effectively preventing the cord 51 from becoming tangled or entangled. This ensures consistent release and release of the cord 51, thereby improving the smooth operation and service life of the endoscope steering control device.

[0073] Reference Figure 2 and Figure 3As shown, a pair of operating ropes 51 are connected to a pair of racks 42, thereby controlling the rotation of the insertion portion 2. To ensure the stability of the device and smooth operation, the reset member 8 plays a key role through the design of spring 81. Spring 81 is located inside the front end of the housing 1, near the rack 42, and is connected to the rack 42. During operation, when the insertion portion 2 rotates to a certain angle, spring 81 generates a reaction force, helping the device return to its initial state.

[0074] Specifically, the spring 81 is mounted on the operating rope 51, with one end fixedly connected to the rack 42 and the other end fixedly connected to the rope retaining rib 13 at the front end of the housing 1. The main purpose of this design is to ensure that the spring 81 can closely follow the displacement of the rack 42, thereby more quickly responding to changes in the rotation of the insertion portion 2 and promptly transmitting the rotational torque at the front end to the operating wheel 311 at the rear end of the housing 1 to achieve the reset function.

[0075] At the same time, because the pair of racks 42 are simultaneously connected to the bevel gear 411 that is rotatably connected to the housing 1, the movement of the racks 42 is highly synchronized. When one rack 42 shifts, the other rack 42 can immediately respond, ensuring extremely high meshing precision between the two racks 42. This design ensures coordinated movement between the racks 42, avoiding gaps or uneven wear between the racks 42, thereby ensuring smooth and precise rotation of the endoscope insertion portion 2. Furthermore, the pulling and loosening of the pair of operating ropes 51 react synchronously, driven by the racks 42. Due to the connection between the racks 42 and the operating ropes 51, each tightening or loosening of the operating ropes 51 immediately affects the movement of the racks 42, and the precise meshing of the racks 42 ensures synchronized changes in the relative position and motion state of the racks 42. This design makes the feedback effect of the operating ropes 51 more direct and rapid.

[0076] It should be noted that when the spring 81 is in a free-form state, it can effectively ensure that the lens at the front end of the insertion portion 2 remains in its initial alignment. The force of the spring 81 can balance the inertial effect of the insertion portion 2 during rotation, preventing the insertion portion 2 from excessive rotation or unnecessary deviation, thereby enhancing the accuracy of the operation. The advantage of the spring 81 design lies in its rapid response capability. Once the rack 42 is displaced, the spring 81 can take effect in a timely manner, transmitting the rotational torque of the insertion portion 2 to the rear end operating wheel 311, effectively resetting it and restoring the initial state before the operation.

[0077] Reference Figure 5-Figure 7As shown, the design of the locking member 7 ensures that the endoscope operating wheel 311 can automatically lock and remain stable after rotation by combining the dial 71 and the second elastic portion 72. Specifically, the dial 71 is slidably mounted on the housing 1 along the axial direction of the operating wheel 311. The dial 71 is integrally provided with a locking portion 711, which precisely matches the locking groove 14 on the housing 1 to form a sliding locking structure. The outer peripheral surface of the locking portion 711 is polygonal in shape, which can slide smoothly within the locking groove 14 and limit the rotation of the dial 71, thereby effectively preventing the dial 71 and the operating wheel 311 from rotating synchronously, ensuring precise control during operation.

[0078] The second elastic portion 72 (e.g., coil spring 721) is located within the retaining groove 14 of the housing 1 and functions to force the dial 71 into contact with the operating wheel 311. The spring force of the coil spring 721 must be appropriately selected. This force ensures that the dial 71 maintains contact with the operating wheel 311 and generates appropriate pressure, thereby ensuring stable contact and friction between the two. This design creates a rough surface between the dial 71 and the operating wheel 311. Friction grooves 7111 or raised areas on this rough surface can enhance friction and further prevent slippage during operation.

[0079] As the operating wheel 311 rotates, the locking member 7 automatically locks the operating wheel 311 when it reaches a predetermined position, maintaining that position and ensuring the front lens mount is at a stable angle, facilitating diagnosis or treatment testing. To reset the operating wheel 311, the user simply pulls the dial 71 to release the lock, and the dial 71 returns to its original position with the help of the spring 81.

[0080] As an optional embodiment, refer to Figure 3 As shown, the portion of the insertion portion 2 located within the housing 1 is fixedly sleeved with a rigid tube 21. This rigid tube 21 is mounted to the front end of the housing 1 via a rotatable connection, ensuring the stability and smooth rotation of the insertion portion 2. The rigid tube 21 is coaxially fixedly connected to the bevel gear 411 mounted on the insertion portion 2. Leveraging the rigidity and strength of the rigid tube 21, the torque generated by the operating wheel 311 is effectively transmitted, ensuring stable torque transmission during the rotation of the insertion portion 2 and reducing errors that may be caused by unstable rotation.

[0081] A second aspect of the present invention provides an endoscope handle, comprising an endoscope steering control device according to the above technical solution. The endoscope handle, in combination with the steering control device, enables more precise and flexible control of the endoscope.

[0082] A third aspect of the present invention provides an endoscope, including an endoscope handle according to the above technical solution. Through the use of this endoscope handle, the endoscope can provide higher control accuracy and operational stability during surgery, especially when treating complex lesions, which can help doctors achieve more accurate diagnosis and treatment. The endoscope body is combined with the steering control device and the handle system, making the entire operation process smoother and more precise, and can meet the high clinical requirements for endoscope operation flexibility and stability.

[0083] The endoscope referred to in the embodiments of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not impose any specific restrictions on the type of endoscope.

[0084] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0085] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A steering control device for an endoscope, characterized in that: include: a toggle member (3), the toggle member (3) being movably connected to the housing (1) of the endoscope and being located on a side of the housing (1) close to a control portion of a traction wheel (11), the traction wheel (11) being located on a side of the housing (1) of the endoscope away from the insertion portion (2); A linkage member (4), the linkage member (4) being connected to the insertion portion (2); A transmission member (5), the transmission member (5) is used to connect the toggle member (3) and the linkage member (4), and is used to convert the movable stroke of the toggle member (3) into the rotational stroke of the linkage member (4), so as to realize the rotation control of the insertion portion (2) in the axial direction; wherein: The toggle member (3) comprises a toggle portion (31) and a line wheel (32), wherein the toggle portion (31) is rotatably mounted on the housing (1), and the toggle portion (31) is connected to the line wheel (32) to drive the line wheel (32) to rotate. The transmission member (5) comprises an operating rope (51), wherein a fixed end (511) of the operating rope (51) is wound around the line wheel (32), and an output end (512) of the operating rope (51) is arranged on the linkage member (4).

2. The steering control device of an endoscope according to claim 1, characterized in that: The toggle portion (31) comprises an operating wheel (311), the operating wheel (311), the line wheel (32) and the dial wheel (111) of the operating traction wheel (11) on the housing (1) are coaxially arranged, and the operating wheel (311) is located outside the housing (1).

3. The steering control device of an endoscope according to claim 2, characterized in that: The operating wheel (311) and the line wheel (32) are plugged into each other, and a limit block (3211) and a limit groove (3111) are respectively provided at the plugging portion along the radial direction of the line wheel (32), wherein the limit block (3211) is located on the operating wheel (311) or the line wheel (32), and the limit groove (3111) is correspondingly located on the operating wheel (311) or the line wheel (32) to achieve limit matching, and a first rubber block (3112) is provided in the limit groove (3111), and the two side walls of the limit block (3211) along the rotation direction of the operating wheel (311) are mutually abutted against the first rubber block (3112); And / or, the operating wheel (311) and the thumbwheel (111) of the operating traction wheel (11) on the housing (1) are arranged at opposite positions on the same side or on both sides of the housing (1).

4. The steering control device of an endoscope according to claim 2, characterized in that: The linkage member (4) includes a gear set (41) and a rack (42), wherein the gear set (41) is provided with at least one set, and the gear set (41) includes a pair of mutually meshing bevel gears (411), each of the pair of bevel gears (411) being rotationally connected to the housing (1) and coaxially fixedly connected to the insertion portion (2), the bevel gears (411) being rotationally connected to the housing (1) are provided with an annular tooth groove (4111) along the circumferential direction, the rack (42) being meshed with the annular tooth groove (4111), and the rack (42) being connected to the output end (512) of the operating rope (51).

5. The steering control device of an endoscope according to claim 4, characterized in that: The reset member (8) is connected to at least one of the toggle member (3), the linkage member (4) and the transmission member (5), and is used to restore the toggle member (3), the linkage member (4) and the transmission member (5) to their initial states after the toggle member (3) drives the insertion portion (2) to rotate to a certain angle.

6. The steering control device for an endoscope according to claim 5, characterized in that: A limiting ring (12) is provided on the housing (1), the line wheel (32) is coaxially rotatably arranged in the limiting ring (12), the operating rope (51) is provided as a pair, the pair of operating ropes (51) are passed through the limiting ring (12), a guide block (6) is detachably mounted on the limiting ring (12), the guide block (6) has a pair of guide portions (61), the guide portions (61) extend into the line groove (121) of the line wheel (32), the guide portions (61) are arranged in an arc shape, the pair of guide portions (61) are respectively supported on the pair of operating ropes (51), and are tangent to the position where the operating ropes (51) pass through the limiting ring (12); And / or, the operating rope (51) is provided as a pair, and the rack (42) is also provided as a pair and is correspondingly connected to the output ends (512) of the pair of operating ropes (51), the reset member (8) includes a spring (81), the spring (81) is located in the housing (1) near the pair of racks (42), the spring (81) is connected to the rack (42), and when the spring (81) is in a free state, the lens at the front end of the insertion portion (2) is in a straightened state.

7. The steering control device for an endoscope according to any one of claims 4 to 6, characterized in that: The locking member (7) further comprises a locking member (7), wherein the locking member (7) comprises a toggle plate (71) and a second elastic portion (72), wherein the toggle plate (71) is slidably arranged on the housing (1) along the axial direction of the operating wheel (311), and the toggle plate (71) has a latching portion (711), wherein the latching portion (711) is latched on the housing (1) and is used to limit the toggle plate (71) from rotating along with the operating wheel (311), and the second elastic portion (72) is arranged on the housing (1) and is used to drive the toggle plate (71) and the operating wheel (311) to abut against each other, and the contact surface between the toggle plate (71) and the operating wheel (311) is a rough surface contact; And / or, a pair of the bevel gears (411) are arranged in a pair, one large and one small, wherein the large bevel gear (411) is mounted on the inserting portion (2), and the small bevel gear (411) is rotatably mounted on the housing (1); And / or, a fixed sleeve is provided on the portion of the insertion portion (2) located inside the housing (1) with a hard tube (21), the hard tube (21) is rotatably connected to the front end of the housing (1), and the hard tube (21) is coaxially fixedly connected to the bevel gear (411) mounted on the insertion portion (2).

8. An endoscope handle, characterized in that: A steering control device comprising an endoscope according to any one of claims 1 to 7.

9. An endoscope, characterized in that: Comprising the endoscope handle as claimed in claim 8.

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