Endoscope steering lock control device, handle and endoscope

Abstract

The present invention provides a steering lock device, a handle, and an endoscope for an endoscope, and relates to the technical field of endoscopes. The present invention includes a handle and an insertion portion installed at the front end of the handle. The steering lock device includes an operating member, a clutch, a connecting member, and a steering member, wherein: the output end of the operating member is connected to the clutch, and the input end of the operating member is arranged on the outside of the handle; the clutch is arranged in the handle and is located near the traction wheel, and the clutch can be switched between different positions under the operation of the operating member to selectively connect the traction wheel and / or the input end of the connecting member; the output end of the connecting member is connected to the input end of the steering member, and the output end of the steering member is connected to the insertion portion of the endoscope to achieve driving the active bending section of the insertion portion to bend and / or the insertion portion to rotate in the axial direction. Compared with the prior art, the present invention has the advantages of improving the flexibility of the operation of the insertion portion of the endoscope and facilitating the operator to accurately control the rotation of the insertion portion.

Description

Technical Field

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

[0002] During endoscope use, precise manipulation of the insertion section plays a significant role in diagnostic and treatment outcomes. Due to the complex and varied shapes of human cavities, the insertion section needs to adapt to different curved paths, often requiring axial rotational adjustment. Current rotational control methods rely primarily on handle operation, where one hand holds the endoscope handle while the other hand rotates the rotating component at the front end of the handle to achieve axial rotational adjustment of the insertion section.

[0003] However, this method of operation has certain limitations in practical applications. First, when operating with both hands, the rhythm of hand movements is difficult to fully synchronize, which can easily cause slight jitters, resulting in reduced control accuracy of the insertion part and possible discomfort to the patient. Second, when rotating the insertion part, the operator needs to coordinate the movements of both hands at the same time, which to a certain extent limits the range of motion of one hand, making it difficult to perform other auxiliary operations, thereby reducing the overall flexibility and work efficiency of the operation. Summary of the Invention

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

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

[0006] A steering lock control device for an endoscope is applied to an endoscope, wherein the endoscope comprises a handle and an inserting portion mounted on the front end of the handle, and the steering lock control device comprises an operating member, a clutch member, a connecting member, and a steering member, wherein:

[0007] The output end of the operating member is connected to the clutch member, and the input end of the operating member is arranged on the outside of the handle;

[0008] The clutch member is arranged in the handle and is located near the traction wheel. The clutch member can be switched between different positions under the operation of the operating member to selectively connect the traction wheel and / or the input end of the connecting member.

[0009] The output end of the connecting member is connected to the input end of the steering member, and the output end of the steering member is connected to the insertion portion of the endoscope to drive the active bending section of the insertion portion to bend and / or the insertion portion to rotate in the axial direction.

[0010] In a second aspect, the present application provides an endoscope handle, which adopts the following technical solution:

[0011] An endoscope handle comprises the endoscope steering control device described in the above technical solution.

[0012] In a third aspect, the present application provides an endoscope, which adopts the following technical solution:

[0013] An endoscope comprises the endoscope handle described in the above technical solution.

[0014] The present invention has the following advantages and beneficial effects:

[0015] (1) The steering lock control device provided by the present invention provides an operating member, a clutch member, a connecting member and a steering member on the endoscope handle, and through the cooperation of the operating member and the clutch member, the operator can control the bending and rotation of the insertion portion with one hand without the need for cooperation of both hands, thereby effectively improving the flexibility of the operation of the insertion portion of the endoscope.

[0016] Specifically, by setting the clutch, rapid switching between different operating modes is achieved, and the operator can selectively drive the traction wheel and / or the connecting member as needed, so that the insertion part can rotate axially or perform bending movements. This design avoids the synchronization difficulties and hand shaking problems caused by the traditional structure that relies on both hands to rotate the front end of the handle, significantly improves the accuracy of the rotation control of the insertion part, and reduces the patient discomfort caused by control errors. At the same time, because the operator can control the rotation of the insertion part with one hand while freeing up the other hand to perform other operations, such as adjusting the observation angle, operating auxiliary surgical instruments, etc., the overall operational flexibility and work efficiency are significantly improved.

[0017] In addition, the operating member in the present invention is arranged on the outside of the handle, which is convenient for the operator to operate in a natural gripping posture, reduces fatigue caused by long-term operation, further optimizes the user experience, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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.

[0019] Figure 1 It is a schematic diagram intended to show the overall structure of an endoscope.

[0020] Figure 2 It is a structural diagram intended to show operating parts and steering parts.

[0021] Figure 3 It is a schematic diagram intended to show the structure of the steering component installed in the housing.

[0022] Figure 4 It is a schematic diagram intended to show the specific structure of the steering parts.

[0023] Figure 5 This is a cross-sectional view intended to show the operating element inside the housing.

[0024] Figure 6 It is a structural diagram intended to show the operating parts.

[0025] Figure 7 It is a structural diagram intended to show the connection ends and limiters.

[0026] Figure 8 It is a schematic diagram intended to show the state where the clutch members on both sides are in the first position at the same time.

[0027] Figure 9 The diagram is intended to illustrate a state in which the clutch member on one side is in the first position and the clutch member on the other side is in the second position.

[0028] Figure 10 It is a schematic diagram intended to show the state where the clutch members on both sides are in the second position at the same time.

[0029] Figure 11 The diagram is intended to show a state in which the clutch member on one side is in the second position and the clutch member on the other side is in the third position.

[0030] Figure 12 This is a structural diagram intended to illustrate the rotation direction of the insert and the bending direction of the lens mount.

[0031] The following are marked in the figure:

[0032] 1. Handle; 10. Housing; 101. Bracket; 102. Inner frame; 11. Insertion portion; 110. Lens mount; 111. Sleeve; 12. Lever; 121. Rod body; 1211. Tooth groove; 122. Swing lever; 1221. Avoidance groove; 13. Rotating shaft; 14. Traction wheel; 2. Operating member; 24. Lever end; 241. Accommodation groove; 242. Deformation groove; 243. Raised edge; 244. Raised strip; 25. Connecting end; 251. First connecting Connecting rod; 252, connecting tube; 253, second connecting rod; 26, connecting member; 261, first reel; 262, pull rope; 2621, rope loop; 263, second reel; 3, steering member; 31, worm gear; 32, worm; 4, clutch; 41, first position; 42, second position; 43, third position; 5, limiting member; 51, first block; 511, engaging tooth; 52, rubber block; 6, feedback unit; 61, rubber strip; 7, bearing;

[0033] P-rotation direction of the insert; S-bending direction of the lens mount. DETAILED DESCRIPTION

[0034] 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.

[0035] 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.

[0036] 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".

[0037] In modern medical practice, endoscopes, as essential tools for minimally invasive diagnosis and treatment, are widely used in various clinical fields due to their superior observation and manipulation capabilities. An endoscope typically comprises a slender, flexible insertion portion 11 and an operating mechanism mounted on a handle 1. The operator uses various controls on handle 1 (such as a lever 12, a dial, or a rotating head) to flexibly adjust the bending and rotational direction of the insertion portion 11, thereby achieving precise control of the lens's position, meeting the requirements for high-precision adjustment of observation and manipulation positions in complex body cavities.

[0038] In actual use, doctors need to coordinate precise movements to control the position and angle of the endoscope insertion portion 11 in order to accurately approach the lesion area and perform operations such as observation, biopsy, or treatment. Therefore, the controllability, stability, and ease of operation of the endoscope are directly related to the surgical effect and patient experience.

[0039] However, through long-term clinical experience and feedback analysis, the applicant has discovered that current mainstream endoscopes have certain deficiencies in the rotational control of the insertion portion 11. In existing structures, the axial rotation of the insertion portion 11 generally relies on the operator's two-handed operation, that is, one hand holds the handle 1 in place while the other hand rotates the rotating component at the front end of the handle 1. This control method presents the following problems during operation: On the one hand, the movements of both hands require high coordination, and even the slightest lack of synchronization can cause the insertion portion 11 to shake, reducing positioning accuracy and increasing patient discomfort; on the other hand, the two-handed operation mode limits the operator's single-handed operating freedom, which significantly affects operational flexibility and efficiency when other auxiliary operations (such as instrument exchange, light source adjustment, etc.) need to be performed simultaneously.

[0040] In view of this, how to improve the convenience and stability of the rotation control of the insertion portion 11 without increasing the burden on the operator has become a technical problem that urgently needs to be improved in endoscope design. To address the above technical bottleneck, the applicant has proposed a new endoscope steering lock control device that realizes integrated single-handed control of the bending and rotation control of the insertion portion 11. This not only effectively improves the operational flexibility and control accuracy, but also reduces the operator's fatigue, and has significant clinical application value.

[0041] The following combination Figures 1 to 12 The steering lock 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.

[0042] A steering lock control device for an endoscope is applied to an endoscope. The endoscope includes a handle 1 and an insertion portion 11 mounted at the front end of the handle 1. The insertion portion 11 includes an active bending section, a passive bending section, and a lens mount 110 in the direction from the proximal end to the distal end. The active bending section is used to respond to the drive of the control member at the handle 1 to adjust the posture of the front end of the insertion portion 11. It has a multi-directional bending function to meet the navigation and positioning requirements in complex body cavity environments. The passive bending section is arranged between the active bending section and the handle 1. It has a certain degree of flexibility and can bend naturally as the insertion path changes, reducing pressure on surrounding tissues. The lens mount 110 is fixedly arranged at the distal end of the insertion portion 11 and is used to install a camera module, lighting assembly, and other front-end functional units. It is the core part for image acquisition and light source guidance. The handle 1 stably supports the insertion part 11 through a fixed connection and is linked with the internal control mechanism (such as the lever 12 or the dial wheel, the traction rope system), so that the operator can accurately control the bending movement of the active bending section and the direction and observation range of the lens holder 110 through the various operating parts 2 of the handle 1, thereby achieving effective observation and intervention of the surgical area or the target area for diagnosis and treatment.

[0043] Specifically, the steering lock control device includes an operating member 2, a clutch member 4, a connecting member 26, and a steering member 3. The output end of the operating member 2 is connected to the clutch member 4, and the input end of the operating member 2 is mounted on the outside of the handle 1, so that the operator can apply a control signal to the clutch member 4 by directly operating the operating member 2. In different implementations, the operating member 2 can be in the form of a button, a slider, a lever 12, or a knob, etc., and can be triggered in different directions or ways according to actual needs to drive the clutch member 4. The design of the operating member 2 takes ergonomic characteristics into consideration, with good tactile feedback and easy operation, allowing the operator to quickly and accurately complete control actions during operation, avoiding misoperation or delays caused by cumbersome operations.

[0044] Reference Figure 5 As shown, the clutch 4 is mounted within the handle 1 and positioned near the traction wheel 14 to shorten the transmission path between the operating member 2 and the clutch 4, and between the clutch 4 and the traction wheel 14, thereby reducing the complexity and response delay of the transmission system. The traction wheel 14 is rotatably mounted on the rotating shaft 13 via a bearing 7. The rotating shaft 13 and the housing 10 are rotatably connected to each other. The design of the bearing 7 not only limits the slippage of the traction wheel 14 along the axial direction of the rotating shaft 13, but also ensures that the traction wheel 14 can freely rotate around the rotating shaft 13, thereby achieving efficient and smooth rotational motion. The clutch 4 can be switched between different positions under the operation of the operating member 2. Through switching, the clutch 4 can selectively connect to the traction wheel 14 and / or the input end of the connecting member 26, thereby achieving bending control or axial rotation control of the insertion portion 11 according to different control requirements, thereby improving the flexibility and versatility of operation.

[0045] Reference Figure 2 As shown, the output end of the connector 26 is connected to the input end of the steering member 3, and the output end of the steering member 3 is connected to the insertion portion 11 of the endoscope. By transmitting power, the active bending section of the insertion portion 11 can be bent, or the entire insertion portion 11 can be rotated axially. Through this structural design, the operation mode of the insertion portion 11 can be flexibly selected according to actual surgical needs, thereby improving the operability and positioning accuracy of the endoscope in complex body cavity environments, reducing the operator's time loss when switching between different operation modes, and further improving the continuity and stability of the operation.

[0046] Reference Figure 5 、 Figure 6As shown, the connecting member 26 specifically includes a first pulley 261 and a pull rope 262. The first pulley 261 is mounted on the rotating shaft 13 of the traction wheel 14 via a bearing 7. The bearing 7 is also used to limit the sliding of the first pulley 261 along the axial direction of the rotating shaft 13, ensuring that the first pulley 261 maintains a stable position during rotation, thereby improving the reliability of the transmission system. One end of the pull rope 262 is fixedly connected to the first pulley 261. When the first pulley 261 rotates, the pull rope 262 can transmit a pulling force or a release force, thereby driving the connected steering member 3 to move and achieve control of the front end posture of the insertion portion 11. The other end of the pull rope 262 (i.e., the output end) is connected to the steering member 3. The overall transmission path is simple and responsive, which helps to improve the accuracy of the control action.

[0047] As an optional embodiment, refer to Figure 3 As shown, in order to further improve the operational stability of the pull rope 262 and prevent the pull rope 262 from bending, entanglement, or misalignment inside the handle 1 or in the transmission path, the pull rope 262 is confined within the rope loop 2621. Specifically, the pull rope 262 is inserted into the rope loop 2621 along its length, and the two ends of the pull rope 262 respectively extend from the opening of the rope loop 2621 and are connected to the first pulley 261 and the steering member 3, thereby ensuring that the path of the pull rope 262 is limited and the movement is smooth during the pulling or recovery process. The two ends of the rope loop 2621 are respectively fixed to the internal frame 102 structure provided in the housing 10, which not only ensures the stability of the rope loop 2621 position, but also does not interfere with the normal operation of other components. Preferably, the rope loop 2621 can be made of a material with certain rigidity and wear resistance, such as a metal tube, a high-temperature resistant polymer tube or a composite pipe, to further improve durability and prevent the rope loop 2621 from being deformed or damaged during long-term use, thereby ensuring that the performance of the endoscope is stable and reliable under long-term and multiple operations.

[0048] Furthermore, in order to ensure that the movement resistance of the pull rope 262 in the rope loop 2621 is minimized, the inner wall surface of the rope loop 2621 can be smoothed, or the surface of the pull rope 262 can be treated with an anti-wear coating, thereby reducing the friction coefficient, improving the transmission efficiency, and reducing the operator's operating load.

[0049] Preferably, in order to further facilitate medical staff to perform delicate and efficient operations, refer to Figure 2 As shown, the operating member 2 includes a lever 12, which is the lever 12 used on a conventional endoscope to control the rotation of the traction wheel 14. Specifically, the lever 12 is composed of a lever body 121 arranged horizontally and moved by a finger, and a swing lever 122 integrally connected to the lever body 121. One end of the swing lever 122 is connected to the rotating shaft 13 of the traction wheel 14 provided inside the handle 1. Therefore, the traction wheel 14 is rotated by the toggle operation of the lever 12, thereby controlling the bending action of the active bending section.

[0050] Reference Figures 8-11 As shown, in order to improve the versatility of control and the free switching capability, the clutch member 4 can be slidably arranged along the axial direction of the rotating shaft 13, and the clutch member 4 is provided with a first position 41, a second position 42 and a third position 43. Different positions correspond to different connection states and function switching:

[0051] When the clutch member 4 is in the first position 41, the clutch member 4 is connected to the traction wheel 14. When the operator toggles the lever 12, the traction wheel 14 can be directly driven to rotate, thereby driving the active bending section to perform bending adjustment.

[0052] When the clutch member 4 is in the second position 42, the clutch member 4 is separated from the traction wheel 14 and the first spool 261. At this time, the swing of the lever 12 does not drive the traction wheel 14 or the first spool 261 to rotate, which is equivalent to the lever 12 being in a neutral state, which is beneficial for avoiding accidental touch and unnecessary movement of the insertion portion 11 in certain specific operations.

[0053] When the clutch member 4 is in the third position 43 , the clutch member 4 is connected to the first wire wheel 261 , and the swing of the shifting rod 12 can drive the first wire wheel 261 to rotate, so as to realize different control functions, such as axial rotation adjustment of the insertion portion 11 .

[0054] By switching the clutch member 4 between different positions, the operator can flexibly switch the control object of the lever 12 according to different surgical scenarios or operation requirements, which greatly improves the diversity and efficiency of the operation.

[0055] Reference Figure 6 and Figure 7 As shown, the clutch 4 is an annular structure coaxially sleeved on the exterior of the rotating shaft 13 and positioned between the traction wheel 14 and the first spool 261. To ensure stable and reliable force transmission, the contact surfaces between the clutch 4, the traction wheel 14, and the first spool 261 preferably employ a roughened surface or toothed contact structure. This ensures that the clutch 4 rotates synchronously with the traction wheel 14 or the first spool 261 when in contact, while effectively preventing interference in force transmission when disengaged. When the clutch 4 is in contact with the traction wheel 14 or the first spool 261, the friction or meshing formed by the contact surfaces allows the rotational force generated during the movement of the lever 12 to be accurately transmitted to the traction wheel 14 or the first spool 261. When the clutch 4 is disengaged from either, the lever 12 and the rotating shaft 13 can rotate relative to each other without affecting the existing posture of the endoscope insertion portion 11.

[0056] Of course, in other embodiments, the clutch 4 is not limited to an annular structure, and may also adopt a semi-annular structure, a plate structure or other functionally equivalent deformed structures according to the spatial layout and force transmission requirements. The present invention does not limit this to adapt to the needs of the internal structure design of endoscope handles 1 of different models and sizes.

[0057] Reference Figure 6 and Figure 7 As shown, to further enhance the convenience and accuracy of manipulation, the operating member 2 further includes a toggle end 24 and a connecting end 25. The toggle end 24 is used to achieve axial switching of the clutch member 4 and is slidably disposed on the transverse rod 121 at the finger-moving position of the lever 12. The toggle end 24 is preferably cylindrical in shape and sleeved onto the exterior of the rod 121. This allows medical personnel to directly push the toggle end 24 with their fingers to slide on the rod 121 during operation, thereby controlling the position switching of the clutch member 4. This improves the comfort and intuitiveness of the operation, avoids complex steps or additional movements, and helps improve surgical efficiency.

[0058] The connecting end 25 is used to establish a transmission connection between the toggle end 24 and the clutch member 4, ensuring that the toggle operation can be accurately transmitted to the clutch member 4. Specifically, the connecting end 25 is composed of a first connecting rod 251, a connecting tube 252, and a second connecting rod 253. The three are fixedly connected to form an integrated structure to ensure the stability and reliability of the entire structure during operation.

[0059] One end of the first connecting rod 251 is connected to the toggle end 24 and is slidably disposed within a pre-set avoidance groove 1221 of the swing lever 122. The avoidance groove 1221 extends along the axial direction of the rotating shaft 13, providing the necessary sliding space for the first connecting rod 251, allowing the toggle operation to proceed smoothly, while ensuring that the sliding movement of the toggle end 24 and the connecting end 25 is not affected when the toggle lever 12 swings as a whole. The connecting tube 252 is sleeved on the rotating shaft 13 and fixedly connected to the first connecting rod 251. The sleeve structure of the connecting tube 252 and the rotating shaft 13 can provide reliable support and guidance for the connecting end 25 during the sliding process, preventing the connecting end 25 from shaking, deflecting, or other unstable phenomena during sliding, thereby improving the accuracy of the sliding process. One end of the second connecting rod 253 is connected to the connecting tube 252, and the other end is connected to the clutch 4, serving to transmit the sliding movement of the toggle end 24 to the clutch 4. Through the connection of the second connecting rod 253 , the sliding of the dial end 24 can directly drive the clutch member 4 to move in the axial direction, thereby realizing the switching of the clutch member 4 among the first position 41 , the second position 42 and the third position 43 .

[0060] Through the above-mentioned structural design, while operating the lever 12 to control the bending movement of the active bending section at the front end of the insertion part 11, the operator can also conveniently adjust the position of the clutch member 4 by lightly sliding the lever end 24 (cylinder), flexibly switching the control object of the lever 12, and realizing the control of the axial movement of the insertion part 11.

[0061] Preferably, refer to Figure 5 and Figure 7 As shown, in order to effectively limit accidental sliding of the toggle end 24 after the medical staff operates the toggle end 24 to adjust the position of the clutch 4 and ensure that the clutch 4 is stably maintained in the selected position, a limit member 5 is also installed on the toggle lever 12. The limit member 5 mainly includes a first block 51, which is installed in the receiving groove 241 of the toggle end 24 to achieve position control of the sliding position of the toggle end 24. Specifically:

[0062] The first block 51 is an annular structure and is sleeved on the rod 121 of the lever 12. To facilitate operation, the diameter of the through hole of the first block 51 sleeved on the rod 121 is designed to be larger than the outer diameter of the rod 121, so that the first block 51 has a certain radial pressing space on the rod 121;

[0063] A rubber block 52 is fixed to the bottom of the receiving groove 241 to provide a rebound force. This elastic rebound effect allows the first block 51 to quickly return to its initial position when the operator releases it, preventing misoperation and improving overall operational feel and efficiency.

[0064] To achieve the position-limiting function, the rod 121 is provided with continuously arranged tooth grooves 1211 along its length, and the first block 51 is provided with engaging teeth 511 that mesh with the tooth grooves 1211. The engagement of the engaging teeth 511 with the tooth grooves 1211 ensures stable positioning of the toggle end 24 at different positions, preventing slippage or deviation during operation and ensuring the control accuracy of the clutch member 4.

[0065] Specifically, when the first block 51 is in its initial position (i.e., unpressed), the engaging teeth 511 engage with the tooth grooves 1211, thereby locking the toggle end 24 in a fixed position and limiting its ability to slide along the length of the rod 121, thereby locking the clutch 4 in its current state. When the operator presses or pulls the first block 51, the first block 51 undergoes radial displacement, driving the engaging teeth 511 out of the tooth grooves 1211, allowing the toggle end 24 to slide along the length of the rod 121. Through the sliding movement of the toggle end 24, the operator can achieve selective connection control between the traction wheel 14 and the first spool 261, thereby completing the switching between different functional modes.

[0066] By setting the above-mentioned limiter 5, not only can the position of the toggle end 24 be effectively prevented from changing due to vibration or external force interference in the non-operating state, but the control stability and safety of the operator during the surgical operation can also be improved, further improving the overall control experience and reliability of the endoscope.

[0067] Reference Figure 3 、 Figure 4 As shown, further, in order to achieve steering adjustment of the insertion portion 11 and ensure good self-locking stability during operation, the steering member 3 includes a worm wheel 31 and a worm 32. In other embodiments, the steering member 3 can be a gear or rack structure.

[0068] Among them, the worm wheel 31 is coaxially sleeved on the insertion part 11 and is fixed integrally with the insertion part 11, so that when the worm wheel 31 rotates, it can synchronously drive the insertion part 11 to rotate or adjust the direction in the axial direction. In order to support the worm 32 and ensure its rotational stability, a bracket 101 is integrally formed in the housing 10 of the endoscope. The worm 32 is rotatably mounted on the bracket 101, so that the worm 32 maintains a good rotation support state in the housing 10, while preventing the worm 32 from deflecting or shaking when subjected to force. The worm wheel 31 and the worm 32 are meshed with each other, and the rotation of the worm 32 drives the worm wheel 31 to rotate, thereby adjusting the overall steering angle of the insertion part 11.

[0069] Further, in order to realize the remote control of the worm 32, refer to Figure 3 and Figure 6 As shown, the connecting member 26 also includes a second pulley 263. The second pulley 263 is coaxially fixedly mounted on the worm 32 and rotates synchronously with the worm 32. The output end of the pull rope 262 is connected to the second pulley 263. Medical staff can drive the second pulley 263 to rotate by pulling the pull rope 262, thereby driving the worm 32 to rotate and adjusting the direction of the insertion part 11. Since the worm wheel 31 and the worm 32 themselves have good self-locking properties, that is, when the external pull rope 262 stops pulling, even if the insertion part 11 is disturbed by the body cavity tissue or external forces, it can prevent the insertion part 11 from spontaneously rotating, thereby ensuring the stability of the posture of the insertion part 11 and improving the operational safety and accuracy during the operation.

[0070] At the same time, the transmission method of the worm gear 31 and the worm 32 has high transmission efficiency and a large torque amplification effect. Considering the length of the insertion portion 11 and the fact that it may need to overcome significant body cavity friction resistance during actual use, it is difficult to achieve precise rotation using a conventional low-torque drive method. The worm gear 31 and worm 32 transmission structure can effectively amplify the operating torque, reducing the operating load on medical personnel. Even when the insertion portion 11 is long or encounters significant resistance, steering operations can still be completed easily, significantly improving overall controllability.

[0071] Further preferably, to achieve more flexible and multi-mode control, the first and second pulleys 261, 263 are each installed in two sets, arranged in pairs, with the corresponding pull cords 262 in opposite directions. The first pulleys 261 are located on either side of the traction wheel 14 and work in conjunction with it. To accommodate the paired pulley arrangement, control-related components such as the toggle end 24, connection end 25, clutch member 4, and limit member 5 are also arranged in pairs, forming a bilaterally symmetrical dual-set mechanism to achieve the purpose of driving the two sets of pull cords 262 to move independently.

[0072] Specifically, when operating, medical staff:

[0073] When both clutch members 4 are in the second position 42 (i.e., separated from the traction wheel 14 and the first wire pulley 261), a reset member (e.g., a spring structure) is installed at the front end of the traction wheel 14 corresponding to the pull rope 262. The elastic restoring force of the reset member restores the lens mount 110 at the front end of the insertion portion 11 to its initial vertical position, achieving automatic return to the original position. This reset function not only simplifies the operation process and facilitates the operation of the lever 12, but also improves the stability and initial positioning accuracy of the insertion portion 11, making it easier for medical personnel to perform subsequent operations.

[0074] When one side of the clutch member 4 moves to the first position 41 (the traction wheel 14 is connected), and the other side moves to the third position 43 (the first wire wheel 261 is connected), during the swinging process of the lever 12, the front lens mount 110 will not only bend along the direction of the active bending section, but the entire insertion portion 11 will also rotate synchronously. Figure 12 As shown, the rotation direction of the insertion part is P direction, and the bending direction of the lens holder is S direction. Therefore, the active bending action and the overall rotation action are carried out simultaneously, so that the viewing angle range of the lens holder 110 during scanning is significantly expanded, which greatly exceeds the limitation of traditional endoscopes that only achieve local field of view adjustment through a single bending action.

[0075] Through this compound motion control, a wider range and more three-dimensional body cavity observation can be achieved in a single dial operation, greatly improving the adaptability and application value of the equipment.

[0076] It should be noted that, referring to Figure 6As shown, since the first and second pulleys 261 and 263 are arranged in pairs and the pull rope 262 is wound in opposite directions, when the clutch 4 on one side is in the first position 41 or the third position 43 and the clutch 4 on the other side is maintained in the second position 42, the medical staff can move the lever 12 in the forward direction to achieve forward or reverse rotation of the insertion portion 11 or the active bending section in the corresponding direction. Furthermore, if the movement direction of the insertion portion 11 needs to be changed during operation, it is only necessary to switch the position of the clutch 4 on both sides (i.e., switch the clutch 4 on the current working side to the second position 42 and the other side to the working state). While continuing to move the lever 12 in the forward direction, the insertion portion 11 or the active bending section can be moved in the opposite direction.

[0077] That is to say, through this paired and oppositely wound wire wheel layout design, in actual operation, even if the medical staff always maintains a single direction to push the lever 12, they can flexibly switch the movement direction of the insertion part 11 or the active bending section as needed, effectively adapting to the usage habits of different operators, and is particularly suitable for scenarios where some medical staff prefer to operate by pushing the lever 12 in one direction, which greatly improves the operational flexibility of the endoscope and the range of people it is suitable for.

[0078] As an optional embodiment, to provide clear tactile feedback when operating the toggle end 24 (barrel), thereby assisting the operator in determining the current position of the clutch member 4, the lever body 121 is provided with feedback portions 6 corresponding to the first position 41, the second position 42, and the third position 43. Specifically, the feedback portion 6 is in the form of a rubber strip 61, which is fixedly mounted on the lever body 121 of the toggle lever 12 and has excellent elasticity and deformability.

[0079] To accommodate the rubber strip 61, a corresponding deformation groove 242 is provided on the toggle end 24 (barrel). This groove is used to partially accommodate the rubber strip 61 during the sliding process. It is important to note that the depth of the deformation groove 242 relative to the side of the rod body 121 is designed to be less than the thickness of the rubber strip 61. Therefore, when the toggle end 24 slides to the position corresponding to the rubber strip 61, the rubber strip 61 undergoes local deformation due to pressure, and the toggle end 24 (barrel) will experience a noticeable pause or slight stagnation, providing the operator with clear position feedback. Furthermore, the presence of the specialized deformation groove 242 prevents the rubber strip 61 from obstructing the normal sliding of the toggle end 24, ensuring both smooth toggle movement and position feedback, and improving the overall control feel and accuracy.

[0080] As another optional embodiment, refer to Figure 6As shown, to further enhance the ease of operation and anti-slip performance of the toggle end 24 (barrel), a ridge 243 is provided on the side of the toggle end 24 (barrel) away from the middle of the rod body 121. This ridge 243 acts as a limiter and barrier when the medical staff's finger reaches the toggle position, effectively preventing the finger from slipping or shifting during the toggle process, thereby improving the stability and comfort of the toggle.

[0081] In addition, in order to increase the friction during the overall toggling operation, a plurality of ridges 244 are evenly and integrally provided on the outer peripheral wall of the toggling end 24 (cylinder). Through the distribution and height design of the ridges 244, the friction coefficient of the cylinder surface can be effectively increased, thereby ensuring a good feel and toggling stability in different environments (such as wet hands, operation with gloves, etc.).

[0082] As a further optional embodiment, to address the structural strength requirements of the insertion portion 11 during rotational operation, the portion of the insertion portion 11 located within the endoscope housing 10 is preferably fixedly sheathed with an integrally formed sleeve 111. Sleeve 111 can be constructed of a metal tube (e.g., stainless steel) or a high-strength synthetic material tube (e.g., a high-performance composite material tube). The rigid support provided by sleeve 111 effectively enhances the torsional rigidity and durability of the insertion portion 11 during rotation, ensuring that the insertion portion 11 is not easily deformed or damaged under high-frequency operation or high torque output. Sleeve 111 is rotatably mounted on the housing's inner frame 102. Simultaneously, the worm gear 31 is fixedly sheathed on the outer wall of sleeve 111, relying on sleeve 111 as a carrier to enhance the stability and coaxiality of the worm gear 31's installation, thereby further ensuring the meshing accuracy and durability of the worm gear 31 and worm 32 transmission mechanism.

[0083] In a second aspect, the present application provides an endoscope handle, comprising the endoscope steering control device in the above technical solution.

[0084] The endoscope handle 1 provided in this application combines the overall design of the clutch 4, the operating member 2, the connecting member 26 and the steering member 3. By integrating the clutch 4 and the operating member 2 on the lever 12 and the rotating shaft 13, medical staff can adjust the traction state of the pull rope 262 and / or the traction rope as needed, thereby flexibly controlling the rotation of the insertion portion 11 and the bending angle of the front end. The sliding toggle structure of the operating member 2 and the multi-position switching of the clutch 4 not only improve the responsiveness and accuracy of the lever 12 during operation, but also give the endoscope handle 1 a richer control mode. The overall design enhances the human-computer interaction experience of the device and helps to achieve more efficient and smooth endoscope control in complex clinical scenarios.

[0085] In a third aspect, the present application provides an endoscope, comprising the endoscope handle 1 in the above technical solution.

[0086] The endoscope provided in this application will have a clutch 4, an operating member 2, a connecting member 26 and a steering member 3 that are integrated with the handle 1 and the insertion portion 11 to realize various operating functions such as bending control, rotation control and angle positioning of the insertion portion 11. In particular, by providing a paired wire wheel system, a slidable toggle end 24 and a multi-position switchable clutch 4, medical staff can quickly switch between different motion modes during operation, thereby improving the control freedom and dynamic response capability of the endoscope body. The overall structural design not only enhances the operational flexibility and stability of the equipment, but also effectively supports high-precision visual guidance and exploration of complex parts during diagnosis and treatment, providing a wider range of adaptability and operational convenience for clinical applications.

[0087] At the same time, it should be emphasized that the endoscope in the embodiments of the present application can 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 specific restrictions on the type of endoscope.

[0088] 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.

[0089] 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 lock control device for an endoscope, applied to an endoscope, wherein the endoscope comprises a handle (1) and an inserting portion (11) mounted on the front end of the handle (1), characterized in that: The steering lock control device comprises an operating member (2), a clutch member (4), a connecting member (26) and a steering member (3), wherein: The output end of the operating member (2) is connected to the clutch member (4), and the input end of the operating member (2) is arranged on the outside of the handle (1). The operating member (2) includes a shifting rod (12), and the shifting rod (12) is connected to the rotating shaft (13) of the traction wheel (14); The clutch member (4) is arranged in the handle (1) and is located near the traction wheel (14). The clutch member (4) can be switched between different positions under the operation of the operating member (2) to selectively connect the traction wheel (14) and / or the input end of the connecting member (26), wherein: The connecting member (26) includes a first wire wheel (261), and the clutch member (4) is coaxially arranged on the rotating shaft (13) and located between the traction wheel (14) and the first wire wheel (261); The output end of the connecting member (26) is connected to the input end of the steering member (3), and the output end of the steering member (3) is connected to the insertion portion (11) of the endoscope to drive the insertion portion (11) to rotate in the axial direction; The traction wheel (14) is connected to the active bending section of the insertion portion (11) to drive the active bending section of the insertion portion (11) to bend.

2. The steering lock control device of an endoscope according to claim 1, characterized in that: The connecting member (26) further includes a pull rope (262), the first wire wheel (261) is coaxially arranged on the rotating shaft (13) of the traction wheel (14), the fixed end of the pull rope (262) is connected to the first wire wheel (261), and the output end of the pull rope (262) is connected to the steering member (3) to drive the steering member (3) to move through the pull rope (262).

3. The steering lock control device of an endoscope according to claim 2, characterized in that: The clutch member (4) is capable of slidingly movably arranged along the axial direction of the rotating shaft (13), and the clutch member (4) is configured with a first position (41), a second position (42), and a third position (43), wherein: When the clutch member (4) is in the first position (41), the clutch member (4) is connected to the traction wheel (14), and the shifting rod (12) can drive the traction wheel (14) to rotate when it swings; When the clutch member (4) is in the second position (42), the clutch member (4) and the traction wheel (14) and the first wire wheel (261) are all in a separated state, and the shifting rod (12) will not drive the traction wheel (14) or the first wire wheel (261) to rotate when it swings; When the clutch member (4) is in the third position (43), the clutch member (4) is connected to the first wire wheel (261), and the shifting rod (12) can drive the first wire wheel (261) to rotate when it swings.

4. The steering lock control device of an endoscope according to claim 3, characterized in that: The clutch member (4) is an annular structure, and the clutch member (4) is coaxially sleeved on the rotating shaft (13). The contact surfaces of the clutch member (4), the traction wheel (14) and the first wire wheel (261) are in rough surface contact or tooth meshing contact.

5. The steering lock control device of an endoscope according to claim 3 or 4, characterized in that: The operating member (2) further comprises a toggle end (24) and a connecting end (25), wherein the toggle end (24) is slidably arranged on the rod body (121) at the finger toggle position of the toggle rod (12), and the two ends of the connecting end (25) are respectively connected to the toggle end (24) and the clutch member (4).

6. The steering lock control device of an endoscope according to claim 5, characterized in that: A limiting member (5) is provided on the shifting rod (12), and the limiting member (5) includes a first block (51), the first block (51) being mounted on the shifting end (24), the rod (121) being provided with a tooth groove (1211) along its length direction, and the first block (51) being provided with an engaging tooth (511) that cooperates with the tooth groove (1211); wherein, When the first block (51) is in the initial position, the engaging teeth (511) engage with the tooth grooves (1211) to limit the sliding of the dial end (24); When the first block (51) is pressed or pulled, the engaging teeth (511) are disengaged from the tooth grooves (1211), allowing the toggle end (24) to slide along the length direction of the rod body (121), thereby achieving selective control of the traction wheel (14) and the first wire wheel (261).

7. The steering lock control device of an endoscope according to claim 6, characterized in that: The steering member (3) includes a worm wheel (31) and a worm (32), wherein the worm wheel (31) is coaxially sleeved on the insertion portion (11), and the worm (32) is rotatably arranged on the housing (10) of the endoscope, and the worm wheel (31) and the worm (32) are engaged with each other. The connecting member (26) further includes a second wire wheel (263), which is coaxially fixed on the worm (32), and the output end of the pull rope (262) is connected to the second wire wheel (263) to drive the worm (32) to rotate through the traction action of the pull rope (262), thereby driving the worm wheel (31) to adjust the steering direction of the insertion portion (11).

8. The steering lock control device of an endoscope according to claim 7, characterized in that: The first wire wheel (261) and the second wire wheel (263) are both provided in two groups and are arranged in pairs, and the corresponding pull ropes (262) are wound in opposite directions; wherein, The first wire wheel (261) is located on both sides of the traction wheel (14), and the toggle end (24), the connection end (25), the clutch member (4) and the limit member (5) are respectively arranged in two groups to respectively drive the two groups of the pull ropes (262) to move; And / or, the rod body (121) is provided with a feedback portion (6) corresponding to the first position (41), the second position (42) and the third position (43), and when the toggle end (24) moves to the feedback portion (6), the toggle end (24) generates a pause feeling to provide position feedback; And / or, the toggle end (24) is cylindrical and is slidably sleeved on the rod body (121), a receiving groove (241) is provided on the side of the toggle end (24) facing the finger operation, and the first block (51) is arranged in the receiving groove (241); And / or, the portion of the insertion portion (11) located inside the endoscope housing (10) is fixedly sleeved with a sleeve (111), and the worm gear (31) is fixedly sleeved on the sleeve (111).

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

10. An endoscope, characterized in that: Comprising an endoscope handle (1) as claimed in claim 9.

Images