A toggle assembly, endoscope handle and endoscope

Abstract

The present invention provides a toggle assembly, an endoscope handle and an endoscope, and relates to the technical field of endoscopes. The present invention comprises a toggle lever, which comprises an operating part and a swinging part fixedly connected to each other; a limiting part is used to be connected to a traction wheel, and the limiting part and the swinging part are slidably matched and can move relatively along the length direction of the swinging part; a locking piece is used to lock the position of the limiting part after the relative movement of the swinging part, so that the traction wheel can rotate with the swing of the toggle lever; compared with the prior art, the present invention has the advantages of adapting to operators with different hand shapes and improving their comfort in operating the endoscope toggle lever.

Description

Technical Field

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

[0002] The endoscope consists of an operating handle and an insertion part. During use, the operator drives the internal traction wheel to rotate by turning the lever on the handle, thereby controlling the angle adjustment of the bending section of the insertion part, and then changing the direction of the front-end module to achieve precise fixed-point observation and other operational functions.

[0003] Existing endoscope handle designs are usually based on the average hand size to meet the needs of most operators. However, due to the limitations of the fixed size of the handle, operators with larger or smaller hands often face operational difficulties during use. For operators with smaller hands, when the control lever is pushed to the maximum or minimum position, it is difficult for the fingers to reach the limit of the lever, resulting in the inability to accurately adjust the bending angle of the front end of the endoscope. For operators with larger hands, the relative size mismatch between the handle and the lever may affect the control accuracy of the force, resulting in reduced flexibility and stability in endoscope operation. Summary of the invention

[0004] In order to adapt to operators with different hand shapes and improve their comfort in operating an endoscope lever, the present application provides a lever assembly, an endoscope handle and an endoscope.

[0005] In a first aspect, the present application provides a toggle assembly, which adopts the following technical solution:

[0006] A toggle assembly, applied to an endoscope, comprises:

[0007] A lever, the lever comprising an operating portion and a swinging portion fixedly connected to each other;

[0008] A limiting part, the limiting part is used to be connected to the traction wheel, the limiting part is slidably matched with the swinging part and can move relatively along the length direction of the swinging part;

[0009] A locking member is used to lock the position of the limiting portion after the relative movement of the swinging portion, so that the traction wheel can rotate with the swinging of the shifting rod.

[0010] Preferably, the connection position between the limiting portion and the traction wheel is located outside the shell, the swing portion is provided with a limiting groove along the length direction, and the limiting portion is slidably matched with the limiting groove.

[0011] Preferably, the limiting groove is arranged to penetrate along the axial direction of the traction wheel, wherein:

[0012] The locking member includes a screw and an abutment portion, the screw is fixedly connected to the abutment portion, the screw passes through the limiting groove and is threadedly connected to the limiting portion, and a side wall of the swinging portion away from the shell is provided with a fitting surface at the edge of the limiting groove, and the fitting surface is used to abut and cooperate with the abutment portion.

[0013] Preferably, at least one of the side walls where the abutting portion and the fitting surface abut against each other is provided with a convex portion, and at least one convex portion is provided.

[0014] Preferably, the convex portion on the abutting portion is arranged in a fan shape, and the thickness of the convex portion gradually increases along the circumferential direction with the axis of the screw as the center;

[0015] Alternatively, the convex portion on the abutting portion is arranged in a fan shape, and the thickness of the convex portion gradually increases along the circumferential direction with the axis of the screw as the center, and the fitting surface is arranged at an angle. When the abutting portion rotates at a certain angle, the fan surface of the convex portion abuts and cooperates with the fitting surface.

[0016] Preferably, the portion of the screw rod located in the limiting groove is provided with at least one shifting tooth, the side wall of the limiting groove along the length direction is provided with a plurality of tooth grooves, and the shifting tooth has a locked state and an unlocked state, wherein:

[0017] When the shifting tooth is in a locked state, the shifting tooth is meshed with the tooth groove, and the fan surface of the convex portion is in abutment with the fitting surface;

[0018] When the shifting tooth is in an unlocked state, the shifting tooth is separated from the tooth groove, and the sector surface of the convex portion is synchronously separated from the abutting surface.

[0019] Preferably, a pair of the shifting teeth are provided, and the pair of the shifting teeth are axially symmetrically arranged with respect to the axis of the screw rod, and tooth grooves are correspondingly arranged on the opposite side walls of the limiting groove along the length direction.

[0020] Preferably, the locking member comprises a screw rod, the screw rod is rotatably inserted into the swinging portion along the length direction of the limiting groove, and the limiting portion is threadedly sleeved on the screw rod.

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

[0022] An endoscope handle comprises a shell and the toggle assembly 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 the endoscope handle and an insertion portion described in the above technical solution, wherein the handle is connected to the insertion portion.

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

[0026] The present invention enables the operator to adjust the position of the lever according to the size of his or her hand through the sliding cooperation between the swinging part and the limiting part of the lever, thereby ensuring that both operators with large and small hands can operate conveniently. This adjustable design overcomes the limitations of the traditional fixed-size handle, ensuring that operators with small hands can still accurately control the bending angle of the front end of the endoscope when the lever is moved to the extreme position; at the same time, operators with large hands can also maintain high control accuracy when applying force, avoiding the influence of operational flexibility and stability due to size mismatch. After adjusting the operating part of the lever to a suitable position, the position of the limiting part and the swinging part is fixed by a locking member, so that the traction wheel rotates stably with the swing of the lever, thereby improving the control accuracy of the force application and ensuring operational flexibility and comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0028] Figure 1 It is a schematic diagram intended to show the overall structure of an endoscope.

[0029] Figure 2 It is a schematic diagram intended to show the interior of the housing and the lever.

[0030] Figure 3 It is a schematic diagram for showing that the lever is L-shaped.

[0031] Figure 4 It is a structural schematic diagram intended to show the limit groove, the limit part and the shifting tooth.

[0032] Figure 5 This is an exploded view intended to show the lever, the limiter, and the swinging portion.

[0033] Figure 6 It is a structural schematic diagram intended to show the lever and the convex part.

[0034] Figure 7 It is a schematic diagram for showing that the convex part on the bonding surface is corrugated.

[0035] Figure 8 It is a schematic diagram for showing that the limiting groove is arranged through the side away from the operating part.

[0036] Fig. 9 It is a structural schematic diagram intended to show that the lever is rotated at a certain angle to allow the shifting tooth to disengage from the tooth groove.

[0037] Fig.10 It is a schematic structural diagram intended to show another embodiment in which the positioning member is a screw rod.

[0038] Fig.11 It is a structural diagram intended to show the screw rod and the limit part.

[0039] Fig.12 It is an exploded view designed to show the screw and bearing.

[0040] The markings in the figure are:

[0041] 100, housing; 110, inserting part; 120, traction wheel; 121, rotating shaft; 200, lever; 210, operating part; 220, swinging part; 221, limiting groove; 222, fitting surface; 223, friction pattern; 224, tooth groove; 300, limiting part; 400, locking piece; 410, lever; 411, convex part; 420, screw rod; 421, shifting tooth; 430, abutting part; 422, cylinder seat; 500, screw rod; 510, shaft seat; 511, bearing; 520, dial wheel; 600, screw. DETAILED DESCRIPTION

[0042] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0043] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] 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".

[0045] Combine the following Figures 1 to 12 A toggle assembly, an endoscope handle and an endoscope provided in an embodiment of the present application are described in detail through specific embodiments and their application scenarios.

[0046] A toggle assembly is applied to an endoscope, including a toggle lever 200, which is mounted on a housing 100 of the endoscope and is used to drive a traction wheel 120 connected to a traction rope on the endoscope to rotate. When the toggle lever 200 is operated to rotate the traction wheel 120, the active bending section (snake bone section) of the endoscope can be pulled by winding the traction rope to achieve a bending action, thereby changing the front end direction of an insertion portion 110 of the endoscope to adjust the shooting direction of a camera module in front of the insertion portion 110 and / or the working area direction of a medical device.

[0047] Reference Figure 2 As shown, the lever 200 includes an operating portion 210 and a swing portion 220 that are fixedly connected to each other. It is worth noting that the specific shape of the lever 200 can be a U-shaped lever 200 (such as Fig. 9 as shown) or an L-shaped lever 200 (as shown Figure 3 ) or a T-shaped lever 200. Specifically, the U-shaped lever 200 is formed by an operating portion 210 in the middle and swinging portions 220 on both sides, the L-shaped lever 200 is only composed of an operating portion 210 and a single-side swinging portion 220, the operating portion 210 is fixedly connected to one end of the swinging portion 220 and is formed in one piece, and the T-shaped lever 200 is also only composed of an operating portion 210 and a swinging portion 220, the swinging portion 220 is fixedly connected to the middle position of the operating portion 210 and is formed in one piece. The shape of the lever 200 can be selected according to the specific needs of the application site of the endoscope, and can be applied in this embodiment.

[0048] Reference Figure 2 and Figure 4 As shown, the limiting part 300 is fixed together with the rotating shaft 121 of the traction wheel 120 by integral molding or screw connection or welding, so that the two are tightly connected in structure. When the limiting part 300 rotates, since it is an integral structure with the rotating shaft 121 of the traction wheel 120, the traction wheel 120 will rotate synchronously therewith. In addition, the limiting part 300 realizes a movable connection with the swing part 220 through sliding cooperation with the swing part 220, so that the limiting part 300 can move relatively freely along the length direction of the swing part 220, thereby adapting to different working states or position requirements.

[0049] As an optional embodiment, refer to Figure 1 and Figure 3As shown, the connection position between the limiting portion 300 and the traction wheel 120 is located on the outside of the shell 100. The connection position between the limiting portion 300 and the traction wheel 120 is designed to be on the outside of the shell 100. This external layout not only provides great convenience for the assembly of the device, but also simplifies the assembly process of the overall structure. There is no need to disassemble or adjust the complex internal structure during assembly, which greatly reduces the difficulty of assembly.

[0050] Of course, as another optional embodiment, the limiting portion 300 can directly pass through the shell 100 and be connected to the traction wheel 120, so that when the limiting portion 300 rotates, it can directly drive the traction wheel 120 to rotate synchronously. In order to achieve this rotational movement, the connection between the limiting portion 300 and the shell 100 needs to be designed as a circular opening to ensure that the limiting portion 300 can rotate freely relative to the shell 100.

[0051] Reference Figure 4 and Figure 5 As shown, the swinging part 220 of the lever 200 is provided with a limiting groove 221 along its length direction, and the limiting groove 221 is located at one end of the swinging part 220 close to the traction wheel 120 and away from the operating part 210. The cross-sectional shape of the limiting groove 221 can be designed to be square, T-shaped or other geometric shapes to meet different application requirements. The limiting part 300 and the limiting groove 221 are slidably matched, and the limiting part 300 is a square block structure, wherein the T-shaped limiting groove 221 can effectively prevent the swinging part 220 from being separated from the limiting part 300 along the axis direction of the traction wheel 120, thereby achieving precise limiting and ensuring the reliable operation of the equipment.

[0052] Reference Figure 5 As shown, in order to prevent the limiting portion 300 from escaping from the limiting groove 221, the end of the limiting groove 221 away from the operating portion 210 can be designed as a sealed form, which can effectively limit the movement range of the swing portion 220 and provide a more stable limiting effect. Figure 8 As shown, in some applications, in order to facilitate assembly and maintenance, the end of the limit groove 221 away from the operating part 210 can also be designed to be open. Such a design can facilitate the alignment and sliding installation of the limit groove 221 and the limit part 300, greatly improving the convenience and efficiency of assembly.

[0053] As an optional embodiment, refer to Figure 4 and Figure 5 As shown, the limiting groove 221 is arranged along the axial direction of the traction wheel 120, and its overall cross-sectional shape is T-shaped to ensure that the swing part 220 has good stability and guidance during the limiting process, and at the same time, the limiting part 300 can be easily installed.

[0054] In the embodiments of the present application, refer to Figure 5As shown, the locking member 400 is composed of a screw rod 420 and an abutment portion 430. The screw rod 420 and the abutment portion 430 are connected by fixed welding or integral molding to ensure the stability and durability of the structure. The screw rod 420 passes through the limiting groove 221 and is threadedly connected to the limiting portion 300. The axial direction of the screw rod 420 is arranged parallel to the axial direction of the traction wheel 120.

[0055] In order to improve the locking effect, this embodiment uses a screw 420 with relatively sparse threads. Such a thread design enables the screw 420 to achieve a longer feed stroke when the screw 420 rotates at a smaller angle (such as 45 degrees or 90 degrees), thereby greatly enhancing the locking force. Through this optimized design, the operating efficiency of the locking member 400 is improved, the torque required during the locking process is reduced, and the locking ability is further enhanced, ensuring the stability and safety of the structure.

[0056] It should be noted that in this embodiment, when the U-shaped lever 200 is used, the locking member 400 can be flexibly adjusted according to specific needs. Specifically, the locking member 400 can be installed on the swinging parts 220 on both sides of the U-shaped lever 200 at the same time, or the locking member 400 can be installed on the swinging part 220 on only one side, while the swinging part 220 on the other side only needs to be slidably limited by the limiting part 300 and the limiting groove 221. When the locking member 400 is installed on the swinging parts 220 on both sides of the U-shaped lever 200 at the same time, the overall stability of the locking structure will be significantly enhanced. Under this design, the locking members 400 on the left and right sides can work together to ensure that the lever 200 does not deviate or loosen during operation.

[0057] However, if the locking member 400 is only installed on one side of the swinging portion 220 of the U-shaped lever 200, although the overall locking effect is slightly weaker than the double-sided installation, this solution has certain advantages. First, such a design is easier to adjust and operate. The operator only needs to operate the locking member 400 on one side to make adjustments, which greatly improves the convenience of operation. Second, this single-sided locking solution can effectively reduce the number of components, reduce the cost of manufacturing and assembly, and also reduce the assembly steps and maintenance complexity.

[0058] Reference Figure 5 As shown, a side wall of the swinging part 220 away from the housing 100 is provided with a fitting surface 222 at the edge of the limiting groove 221, and the fitting surface 222 and the abutting portion 430 abut against each other. When the operator rotates the screw rod 420, the screw rod 420 generates a locking force through the threaded connection, and the abutting portion 430 abuts against the fitting surface 222 of the swinging part 220, thereby achieving a stable locking of the limiting part 300 and the swinging part 220, ensuring the stability and safety of the lever 200 during operation.

[0059] In addition, a lever 410 is installed on the locking member 400 by integral molding, welding or bolt connection. The lever 410 adopts a flat structure design, and one end of the lever 410 is connected to the abutment portion 430 to form an operating lever arm. The flat lever 410 design not only improves the convenience of operation, but also allows the operator to easily move the lever 410, and by rotating the lever 410, the screw 420 and the abutment portion 430 are driven to rotate synchronously, thereby realizing the rapid locking or loosening of the screw 420. This design not only improves the operating efficiency, but also reduces the effort consumption during operation.

[0060] Reference Figure 5 and Figure 6 As shown, in the embodiment of the present application, at least one of the side walls where the abutting portion 430 and the fitting surface 222 abut against each other is provided with a protrusion 411 to enhance the contact stability and anti-slip capability. The specific design includes three schemes: in the first scheme, both the abutment portion 430 and the fitting surface 222 are provided with a convex portion 411, and the double convex design provides a stronger grip and anti-slip performance by interlocking with each other, ensuring that a firm locking effect can be maintained even under a large torque; in the second scheme, the abutment portion 430 is a plane, and the fitting surface 222 is provided with a convex portion 411, and the engagement between the convex portion 411 and the plane makes the contact closer, preventing the swinging portion 220 from being displaced, thereby enhancing the locking strength and improving the stability of the overall structure; in the third scheme, the abutment portion 430 has a convex portion 411, and the fitting surface 222 is a plane. The embedding of the convex portion 411 effectively increases the friction force, prevents sliding, and provides an excellent locking effect. These three schemes can significantly improve the locking performance after abutment through different designs of the convex portion 411, effectively prevent loosening or slipping, and ensure the long-term stability and durability of the structure.

[0061] In addition, in the first and second solutions, refer to Figure 7 As shown, the convex portion 411 on the fitting surface 222 can be designed as a continuous or discontinuous wave shape arranged along the length direction of the swing portion 220, or a continuous or discontinuous wave shape arranged along the width direction of the swing portion 220 according to the use requirements. Such a wave-shaped convex portion 411 design can not only improve the friction force, but also effectively prevent slippage.

[0062] As an optional embodiment, refer to Figure 6 As shown, the convex portion 411 on the abutment portion 430 is arranged in a fan shape, and its characteristic is that the thickness of the convex portion 411 gradually increases along the circumferential direction with the axis of the screw 420 as the center. This design can not only provide a stronger locking force during the rotation process, but also ensure a smooth transition of the contact surface. When the screw 420 rotates, the convex portion 411 of the abutment portion 430 gradually forms a close contact with the fitting surface 222, and the locking effect is significantly enhanced.

[0063] As another optional embodiment, refer to Figure 5 and Figure 6 As shown, the convex portion 411 of the abutment portion 430 is also arranged in a fan-shaped shape, and the thickness of the convex portion 411 gradually increases along the circumferential direction, while the fitting surface 222 is arranged in an inclined manner. When the abutment portion 430 is driven by the screw 420 to rotate to a certain angle, in this embodiment, the lever 410 drives the screw 420 to rotate at an angle of 90 degrees, and the fan-shaped surface of the convex portion 411 gradually abuts against the inclined fitting surface 222. This design can gradually increase the locking force in the process of the screw 420 rotating and driving the abutment portion 430 through the gradually increasing contact area. As the contact between the fan-shaped convex portion 411 and the fitting surface 222 becomes increasingly close, the system forms a further reinforcement effect. This structural design can not only effectively avoid loosening during operation, but also maintain a stable locking state after multiple uses.

[0064] As an optional embodiment, at least one of the two side surfaces where the convex portion 411 and the fitting surface 222 abut against each other is provided with friction lines 223. The friction lines 223 may be arranged regularly or distributed irregularly. The design of the friction lines 223 increases the friction coefficient of the contact surface, thereby significantly improving the ability to resist slippage and loosening during the locking process, wherein:

[0065] The regularly arranged friction lines 223 can be in the form of parallel lines, cross lines or grids, etc., to ensure that the contact surface is evenly stressed during operation, which helps to enhance the stability of the structure; while the irregularly arranged friction lines 223 can provide more friction points in different directions through random line distribution, thereby enhancing the multi-directional anti-skid effect during locking. In this way, when the screw 420 rotates to drive the abutment part 430 to gradually contact the fitting surface 222, the setting of the friction lines 223 can effectively increase the resistance, prevent relative sliding between the two, and ensure that the locking member 400 can maintain a stable locking state under various loads. Whether it is a regular or irregular friction line 223 design, it can be selected according to specific usage requirements, thereby further enhancing the safety and durability of the overall structure. This optimization not only improves the locking effect, but also ensures that the locking structure still has good anti-skid and stable performance after long-term use.

[0066] As an optional embodiment, refer to Figure 6 and Fig. 9As shown, the portion of the screw rod 420 located in the limiting groove 221 is provided with at least one shifting tooth 421, and the inner side wall of the limiting groove 221 along the length direction is provided with a plurality of tooth grooves 224 that cooperate with the shifting tooth 421. It is worth noting that the shifting tooth 421 has a locked state and an unlocked state. When the shifting tooth 421 is in the locked state, the shifting tooth 421 is meshed with the tooth groove 224, so that the fan surface of the convex part 411 and the fitting surface 222 are mutually abutted and matched, achieving a stable locking effect; and when the shifting tooth 421 is in the unlocked state, the shifting tooth 421 is separated from the tooth groove 224, and the fan surface of the convex part 411 is synchronously separated from the fitting surface 222, which is convenient for adjustment and operation.

[0067] In order to further enhance the locking effect and stability, in this embodiment, the teeth 421 can be provided as a pair, and the pair of teeth 421 are axially symmetrically distributed relative to the axis of the screw 420. This design helps to maintain the balance and stability of the operation. At the same time, the opposite side walls of the limiting groove 221 are also provided with corresponding tooth grooves 224, and the pair of teeth 421 can be simultaneously inserted into the tooth grooves 224 on both sides, further improving the overall locking stability.

[0068] In actual operation, when the operator drives the screw rod 420 to rotate through the lever 410, not only the abutment portion 430 on the screw rod 420 and the fitting surface 222 of the swinging portion 220 can be tightly abutted and fixed, but the shifting tooth 421 can also be synchronously snapped into the tooth groove 224 in the limiting groove 221. This double locking mechanism greatly improves the stability of the structure and the locking effect. Whether it is the axial locking driven by the screw rod 420 or the meshing of the shifting tooth 421 and the tooth groove 224, it can be ensured that there will be no loosening in the locked state, which greatly enhances the safety and accuracy of the operation.

[0069] In an embodiment of the present application, the tooth 421 can be made in an integrated manner. Specifically, the tooth 421 and the cartridge seat 422 can be integrally formed, which not only improves production efficiency, but also enhances the structural strength of the tooth 421 and the cartridge seat 422. The cartridge seat 422 can be fixed on the screw rod 420 by a sleeve arrangement. During installation, regarding the fixing method between the cartridge seat 422 and the screw rod 420, the cartridge seat 422 can be firmly connected to the screw rod 420 by a welding process. Welding has the characteristics of high strength, which ensures that the screw rod 420 and the cartridge seat 422 are not easy to loosen during long-term use. In addition, a strong glue bonding method can be adopted, so that the close connection between the cartridge seat 422 and the screw rod 420 can be ensured during use.

[0070] In some other embodiments, referring to Figures 10 to 12As shown, the structure of the locking member 400 of the present application is optimized to improve the operational flexibility and adjustment accuracy. The locking member 400 in this embodiment includes a screw rod 500, which is arranged on the swing part 220 along the length direction of the limit groove 221. One end of the screw rod 500 passes through the limit groove 221 and realizes rotational movement in the swing part 220. The limit part 300 is arranged on the screw rod 500 through a threaded sleeve. When the screw rod 500 rotates, the limit part 300 can move forward and backward along the axial direction of the screw rod 500, thereby adjusting the relative position between it and the traction wheel 120. The limit part 300 is fixedly connected to the rotating shaft 121 of the traction wheel 120 through a screw 600, but the screw 600 needs to avoid the running path of the screw rod 500 during installation to ensure that the rotation of the screw rod 500 is not hindered.

[0071] For the convenience of operation, the distal end of the screw rod 500 extends out of the outside of the swing part 220 and is coaxially fixed and welded with the dial wheel 520. The design of the dial wheel 520 allows the operator to control the rotation of the screw rod 500 by manually turning the dial wheel 520. The outer periphery of the dial wheel 520 is provided with anti-slip teeth or grooves to increase the friction during manual operation, making the operation more stable and precise. The rotation of the dial wheel 520 drives the screw rod 500 to rotate, thereby adjusting the position of the limit part 300, and then controlling the distance between the operating part 210 and the center of the traction wheel 120. By turning the dial wheel 520, stepless distance adjustment can be achieved, making the distance adjustment of the operating part 210 more flexible and meeting different operating requirements. Whether it is fine tuning or large-scale adjustment, it can be successfully completed through the dial wheel 520, greatly improving the accuracy of the operation.

[0072] When installing the screw rod 500, first fix a shaft seat 510 in the limit groove 221 by means of a screw 600, and the shaft seat 510 is used to provide stable support for the screw rod 500. A high-precision bearing 511 is installed inside the shaft seat 510 to ensure that the screw rod 500 can run smoothly when rotating. The far end of the screw rod 500 (i.e., the end away from the dial wheel 520) is fixed on the inner ring of the bearing 511, so that the screw rod 500 can achieve smooth rotational movement in the swing part 220. The support design of the bearing 511 not only effectively reduces the friction between the screw rod 500 and the swing part 220, but also greatly improves the stability and smoothness of the adjustment of the screw rod 500, avoiding blockage or jamming during the adjustment process.

[0073] For the use of the locking member 400, the overall design enables the locking member 400 structure to exhibit good stability and adjustability during operation. Through the combination of the screw rod 500, the limiter 300 and the dial wheel 520, the function of stepless distance adjustment is realized, and the operator can flexibly and accurately adjust the position of the traction wheel 120 according to the surgical requirements. This design not only enhances the adaptability of the operation, but also ensures the smoothness and efficiency of the adjustment process.

[0074] Please refer to Figure 1 and Figure 2 As shown, the embodiment of the present application also provides an endoscope handle, including a shell 100 and the aforementioned toggle assembly, the toggle assembly is arranged on the outside of the shell 100, and the toggle rod 200 is connected to the traction wheel 120 through the rotating shaft 121 to drive the traction wheel 120 to rotate.

[0075] At the same time, the embodiment of the present application also provides an endoscope, whose structural optimization realizes the flexibility and comfort of operation. The endoscope includes the aforementioned endoscope handle and the insertion part 110, and the handle is connected to the proximal end of the insertion part 110 through a connecting structure, so that the operator can effectively control the endoscope through the toggle assembly on the handle. During the operation process, the distance between the lever 200 and the center line of the traction wheel 120 is first adjusted to adapt to the operator's fingers. The subsequent operator only needs to toggle the lever 200, and the swing of the lever 200 drives the traction wheel 120 to rotate through the rotating shaft 121, thereby realizing the precise control of the active bending section (snake bone section) at the distal end of the insertion part 110. This design allows the bending posture of the front end of the endoscope to be flexibly adjusted, and the operator can accurately adjust the direction and angle of the endoscope according to the needs of surgery or inspection.

[0076] In addition, 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.

[0077] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out 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 reverse 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.

[0078] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A toggle assembly, applied to an endoscope, characterized in that: include: A lever (200), the lever (200) comprising an operating portion (210) and a swing portion (220) which are fixedly connected to each other; a limiting portion (300), the limiting portion (300) being used to be connected to the traction wheel (120), the limiting portion (300) being slidably matched with the swing portion (220) and being able to move relatively along the length direction of the swing portion (220); a locking member (400), the locking member (400) being used to lock the position of the limiting portion (300) after relative movement between the limiting portion (300) and the swinging portion (220), so that the traction wheel (120) can rotate along with the swinging of the shifting rod (200); The connection position between the limiting portion (300) and the traction wheel (120) is located outside the housing (100); the swinging portion (220) is provided with a limiting groove (221) along the length direction; the limiting portion (300) is slidably matched with the limiting groove (221); The limiting groove (221) is arranged to penetrate along the axis direction of the traction wheel (120), wherein: The locking member (400) comprises a screw rod (420) and an abutment portion (430), wherein the screw rod (420) is fixedly connected to the abutment portion (430), the screw rod (420) passes through the limiting groove (221) and is threadedly connected to the limiting portion (300), and a side wall of the swinging portion (220) away from the housing (100) is provided with a fitting surface (222) at the edge of the limiting groove (221), and the fitting surface (222) is used for abutting and cooperating with the abutment portion (430).

2. A toggle assembly according to claim 1, characterized in that: At least one of the side walls where the abutting portion (430) and the fitting surface (222) abut against each other is provided with a convex portion (411), and at least one convex portion (411) is provided.

3. A toggle assembly according to claim 2, characterized in that: The convex portion (411) on the abutting portion (430) is arranged in a fan-shaped manner, and the thickness of the convex portion (411) gradually increases along the circumferential direction with the axis of the screw rod (420) as the center; Alternatively, the convex portion (411) on the abutting portion (430) is arranged in a fan-shaped manner, and the thickness of the convex portion (411) gradually increases in the circumferential direction with the axis of the screw (420) as the center, and the fitting surface (222) is arranged in an inclined manner. When the abutting portion (430) is rotated at a certain angle, the fan-shaped surface of the convex portion (411) abuts and cooperates with the fitting surface (222).

4. A toggle assembly according to claim 3, characterized in that: The portion of the screw rod (420) located in the limiting groove (221) is provided with at least one shifting tooth (421), and the side wall of the limiting groove (221) along the length direction is provided with a plurality of tooth grooves (224), and the shifting tooth (421) has a locked state and an unlocked state, wherein: When the shifting tooth (421) is in a locked state, the shifting tooth (421) meshes with the tooth groove (224), and the fan surface of the convex portion (411) abuts against the fitting surface (222); When the shifting tooth (421) is in an unlocked state, the shifting tooth (421) is separated from the tooth groove (224), and the sector surface of the convex portion (411) is synchronously disengaged from the fitting surface (222).

5. A toggle assembly according to claim 4, characterized in that: A pair of shifting teeth (421) are provided, and the pair of shifting teeth (421) are arranged axially symmetrically with the axis of the screw rod (420), and tooth grooves (224) are correspondingly arranged on opposite side walls of the limiting groove (221) along the length direction.

6. The toggle assembly according to claim 1, characterized in that: The locking member (400) comprises a screw rod (500), the screw rod (500) is rotatably inserted into the swing portion (220) along the length direction of the limiting groove (221), and the limiting portion (300) is threadedly sleeved on the screw rod (500).

7. An endoscope handle, characterized in that: It comprises a housing (100) and a toggle assembly, wherein the toggle assembly is the toggle assembly according to any one of claims 1 to 6.

8. An endoscope, characterized in that: It comprises a handle and an insertion part (110), wherein the handle is the endoscope handle according to claim 7, and the handle is connected to the insertion part (110).

Images