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 a swinging part and an operating part that are connected to each other. The swinging part is used to connect a transmission member to control a traction rope, and the connection position between the swinging part and the transmission member is a connection node. There is a movable stroke between the operating part and the connection node. The guide part has a first preset path, and the guide part is used to adjust the distance between the operating part and the connection node so that the operating part moves along a second preset path. Compared with the prior art, the present invention has the advantages of improving the comfort of endoscope toggle lever operation and reducing hand fatigue during long-term operation.

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. When in use, the operator swings the lever on the handle to drive the internal traction wheel to rotate to adjust the angle of the active bending section of the insertion part, thereby achieving precise adjustment of the direction of the front-end module, supporting detailed observation, precise positioning and other operating functions.

[0003] In the related art, the design of the lever has the problem of uneven force application, especially when the operator swings the lever toward the extreme position of the distal end or the proximal end, it is difficult to apply the appropriate force smoothly, which makes the adjustment process not smooth enough and affects the precise control of the angle of the bending section of the insertion part. In addition, the uneven force application not only reduces the accuracy of the operation, but also increases the fatigue of the hand during long-term operation, significantly affecting the comfort of using the endoscope. Summary of the invention

[0004] In order to improve the operating comfort of 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 is applied to an endoscope, wherein a transmission member for controlling a traction rope to drive the bending of an active bending section is arranged in a housing of the endoscope, and the toggle assembly comprises:

[0007] A lever, the lever comprising a swinging portion and an operating portion connected to each other, the swinging portion being used to connect to a transmission member to control the traction rope, the connection position between the swinging portion and the transmission member being a connection node, and a movable stroke being provided between the operating portion and the connection node;

[0008] The guide portion has a first preset path and is used to adjust the distance between the operating portion and the connection node so that the operating portion moves along a second preset path.

[0009] Preferably, the guide portion comprises a first guide segment and a second guide segment, the first guide segment and the second guide segment are smoothly connected to each other, the first guide segment is in an initial position from the connection with the second guide segment, that is, the active bending segment is in an unbent state, wherein:

[0010] The first guide section extends from the connection point with the second guide section in a clockwise direction with the connection node as the center, and the spacing between the first guide section and the connection node extending in a counterclockwise direction gradually increases or decreases, so that the operating part follows the first guide section to move along the second preset path;

[0011] The second guide section extends counterclockwise from the connection with the first guide section with the connection node as the center, and the spacing between the second guide section extending in the counterclockwise direction and the connection node gradually increases or decreases, so that the operating part follows the second guide section to move along the second preset path.

[0012] Preferably, it also includes a feedback segment, which is smoothly connected to the ends of the first guide segment and the second guide segment, and is used to make the distance between the operating part and the connection node suddenly increase or suddenly decrease when the operating part follows the swinging part in the first guide segment or the second guide segment to move to the feedback segment at their respective ends.

[0013] Preferably, the swinging part includes a sliding section and a fixed section, the sliding section is fixedly connected to the operating part, the fixed section is connected to the transmission member, the sliding section and the fixed section are telescopically arranged with each other, a moving part is fixed on the sliding section, and the moving part can move along the first preset path of the guide part.

[0014] Preferably, the guide portion is a guide groove provided on the outer side of the housing of the endoscope or a guide strip fixedly provided on the outer side of the housing of the endoscope;

[0015] When the guide portion is a guide groove provided on the outer side of the housing of the endoscope, the moving portion is a first slider, and the first slider is slidably fitted in the guide groove;

[0016] When the guide portion is a guide bar fixedly arranged on the outer side of the housing of the endoscope, the movable portion is a second slider, and the second slider is slidably engaged or abutted against the guide bar.

[0017] Preferably, when the guide portion is a guide bar fixed to the outside of the shell of the endoscope, and the second slider is in abutment with the side wall of the guide bar away from the connection node, an elastic member is provided between the sliding section and the fixed section, and the elastic member is used to drive the second slider to always maintain abutment with the side wall of the guide bar.

[0018] Preferably, the operating portion comprises a touch end and a connection end, the touch end is rotatably sleeved on the connection end, and the connection end is fixedly connected to the swing portion.

[0019] Preferably, the outer wall of the connection end is provided with a friction layer in a partial circumferential area or is completely provided with a friction layer;

[0020] When a friction layer is provided along a circumferential portion of the outer wall of the connecting end, a torsion piece is provided between the connecting end and the touching end, and the torsion piece is used to drive the friction layer so that the friction layer is always located at a preset position when the lever is in an initial position.

[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 a toggle assembly as described in the above technical solution, wherein the toggle assembly is the toggle assembly as 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 the endoscope handle described in the above solution, and the handle is connected to the insertion portion.

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

[0026] The present invention provides a guiding part. When the operator operates the lever, due to the movable travel between the operating part and the connection node, the operating part is moved along the second preset path under the guidance of the first preset path of the guiding part, so that the operating part of the lever can be optimized according to the natural movement path of the finger, so that the operator can apply force more evenly during the shifting process, reduce the changes in the force angle and strength at different positions, improve the comfort and smoothness of the operation, and better match the finger force with the movement trajectory. Since the force is applied more smoothly, the operator does not need to frequently adjust the force angle and strength of the finger, which can effectively reduce hand fatigue, improve the comfort of the operator in operating the endoscope lever, and at the same time improve the accuracy and stability of the endoscope operation. 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 2It is a schematic diagram intended to show the structure inside the shell of an endoscope.

[0030] Figure 3 It is a structural schematic diagram intended to show the guiding part and the moving part.

[0031] Figure 4 It is a structural schematic diagram intended to show that the first guide section and the second guide section are in one of the tilted states.

[0032] Figure 5 It is a structural schematic diagram intended to show that the first guide section and the second guide section are in another inclined state.

[0033] Figure 6 It is a schematic diagram for showing the structure that the guide part is a guide strip.

[0034] Figure 7 It is an exploded view intended to show the abutment relationship between the second slider and the guide strip.

[0035] Figure 8 It is a schematic diagram intended to show that the mounting hole is located on the inner side of the sliding section.

[0036] Fig. 9 It is a schematic diagram intended to show the structure of an elastic member.

[0037] Fig.10 It is a structural diagram intended to show the touch end, connection end and torsion spring.

[0038] Fig.11 An exploded view showing the contact ends, connection ends, and torsion springs.

[0039] Fig.12 It is a structural diagram intended to demonstrate lever-related technologies.

[0040] Fig.13 It is a schematic diagram of a structure intended to show that the operating part moves along the second preset path Figure 1 .

[0041] Fig.14 It is a schematic diagram of a structure intended to show that the operating part moves along the second preset path Figure 2 .

[0042] The markings in the figure are:

[0043] 100, lever; 110, swinging part; 111, sliding section; 1111, moving part; 1112, first slider; 1113, second slider; 1114, mounting hole; 112, fixing section; 120, operating part; 121, touch end; 122, connecting end; 1220, mounting gap; 1221, friction layer; 130, connecting node; 140, movable stroke; 200, guide part; 210, first guide section; 220, second slider; 1214, mounting hole; 1215, fixing section; 1216, fixing section; 1217, fixing section; 1218, fixing section; 1219, fixing section; 130, fixing section; 1310, fixing section; 1321, fixing section; 1330, fixing section; 1341, fixing section; 1350, fixing section; 1361, fixing section; 1370, fixing section; 1381, fixing section; 1390, fixing section; 140, fixing section; 200, guide part; 210, first guide section; 220, second slider; 1419, fixing section; 1420, fixing section; 1430, fixing section; 1440, fixing section; 1450, fixing section; 1461, fixing section; 1470, fixing section; 1480, fixing section; 1490, fixing section; 1500, fixing section; 1511, fixing section; 1521, fixing section; 1530, fixing section; 1541, fixing section; 1551, fixing section; 1562, fixing section; 1571, fixing section; 1581, fixing section; 1591, fixing section; 1603, fixing section; 161 Second guide section; 221, connection; 222, feedback section; 230, initial position; 241, guide groove; 242, guide strip; 300, elastic member; 310, tension spring; 311, hook; 312, hook ring; 400, torque member; 410, torsion spring; 500, handle; 510, insertion part; 511, active bending section; 600, housing; 700, transmission member; 710, traction wheel; 720, traction rope; 800, screw;

[0044] S - Second preset path. DETAILED DESCRIPTION

[0045] 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.

[0046] 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.

[0047] 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".

[0048] Combine the following Figures 1 to 14 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.

[0049] A toggle assembly is used in an endoscope, wherein a transmission member 700 is disposed inside the housing 600 of the endoscope, which is responsible for controlling the direction of a traction wheel 710 to drive the bending of an active bending section 511, which is a bending section made of a snake bone section or other bending materials. The active bending section 511 is already a prior art and will not be described in detail here. The transmission member 700 can be a directly connected traction wheel 710, or can be indirectly controlled through a gear set or other structure. The toggle assembly and the traction wheel 710 are fixedly connected by bolts to ensure that torque can be effectively transmitted during operation.

[0050] Reference Figure 1 and Figure 2 As shown, the lever 100 is composed of a swinging part 110 and an operating part 120 that are fixedly connected to each other. The overall design is intended to achieve precise control of the traction rope 720 in the endoscope. The shape of the lever 100 can be a gate-shaped lever 100 or a T-shaped lever 100. When the gate-shaped lever 100 is selected, the swinging part 110 is designed as a pair of symmetrical structures, which are respectively connected to the two ends of the operating part 120 to form a stable support and uniform force distribution. When the T-shaped lever 100 is selected, the swinging part 110 is fixedly connected to the middle position of the operating part 120, providing more centralized and direct operation control.

[0051] The specific shape of the lever 100 is selected based on actual operation requirements and space limitations. Through optimized design, it is ensured that users can operate conveniently in different environments. Whether it is a door-shaped or T-shaped lever 100, this flexible design concept is aimed at improving the user experience, so that the toggle assembly can effectively meet the operation requirements in various application scenarios.

[0052] Specifically, the main function of the swing part 110 is to connect the transmission member 700. In this embodiment, the transmission member 700 is the traction wheel 710 to control the movement of the traction rope 720. The connection position between the component and the transmission member 700 is called the connection node 130. The connection node 130 is located on the axis of the rotating shaft of the traction wheel 710 fixedly connected by bolts. This design can ensure that during operation, the force transmission between the swing part 110 of the lever 100 and the transmission member 700 is stable and effective. The design of the connection node 130 adopts a high-strength bolt fixing method to enhance its bearing capacity and avoid loosening or failure under high-load operation. A movable stroke 140 is provided between the operating part 120 and the connection node 130, allowing the user to adjust the distance between the two during operation. The design of the movable stroke 140 ensures the flexibility of the toggle operation.

[0053] The guide portion 200 is designed to have a first preset path. Specifically, the first preset path is the curved shape of the guide portion 200, which is intended to adjust the distance between the operating portion 120 and the connection node 130, thereby improving the comfort of operation and ensuring that the operating portion 120 can move along the trajectory of the second preset path when moving, wherein the first preset path and the second preset path move parallel to each other. In the specific design, the design of the guide portion 200 needs to take into account the user's operating habits, so that when adjusting the distance between the operating portion 120 and the connection node 130, the user can easily and naturally perform the movement, thereby improving the flexibility and comfort of operation.

[0054] As an optional embodiment, refer to Figures 2 to 6 As shown, in the specific design of the guide portion 200, the guide portion 200 includes a first guide section 210 and a second guide section 220. The first guide section 210 is smoothly connected to the second guide section 220 to form a seamless transition. The connection between the first guide section 210 and the second guide section 220 is the connection 221, which makes the operation of the lever 100 smoother. The first guide section 210 starts at the connection 221 with the second guide section 220. When the lever 100 is in the initial position 230, the active bending section 511 remains in an unbent state.

[0055] It should be particularly emphasized that the shape changes of the first guide section 210 and the second guide section 220 are targeted at the usage requirements or operating habits of different operators. Specifically:

[0056] Case 1: When the operator's fingers are short, refer to Fig.14 As shown, during the process of pushing the lever 100 from the initial position 230 to the distal end, the finger often cannot smoothly reach the operating portion 120, resulting in difficulty in applying force. To solve this problem, the distance between the operating portion 120 and the connection node 130 can be shortened, thereby shortening the relative distance that the finger pushes the operating portion 120 to the distal end. In this way, the operator can more easily apply force and smoothly push the lever 100 into place, thereby improving the convenience and accuracy of the operation.

[0057] Case 2, refer to Fig.13 As shown, for operators with long fingers or normal finger length, when the lever 100 is pushed from the initial position 230 to the distal end, the conventional lever 100 is designed so that the finger needs to follow the operating part 120 to move along the arc path. In this case, the angle and strength of the force applied by the finger at different positions will change accordingly, which may easily cause the force to be mismatched with the motion trajectory, thereby affecting the stability and comfort of the operation. The improved guide section design can optimize this uneven force phenomenon. Through reasonable curve and spacing adjustment, the operator can maintain relatively consistent force at different positions, thereby improving the comfort of operation.

[0058] In case three, when the lever 100 is moved from the initial position 230 to the proximal end, in the traditional design, the finger needs to follow the rotation of the operating part 120 along the arc path, and the finger retracts and rotates or bends and swings simultaneously in the process of pushing the lever 100 back. This repetitive action is easy to cause hand fatigue in long-term operation. By optimizing the shape of the guide part 200, the rotation range of the finger can be slowed down or unnecessary hand swing or finger joint bending can be reduced, making it easier for the finger to apply force, thereby reducing fatigue and improving the durability and comfort of operation.

[0059] Specifically, the first guide section 210 extends from the connection 221 in a clockwise direction, and the distance between the first guide section 210 extending in the clockwise direction and the connection node 130 is either gradually increased or gradually decreased, such as the first guide section 210 is in a straight line. When the distance from the connection node 130 is gradually increased, the uneven force application in the above situation 2 can be solved, and when the distance from the connection node 130 is gradually decreased, the problem of the short finger being difficult to apply force in the above situation 1 can be solved.

[0060] This gradual structure allows the distance between the operating portion 120 and the guide portion 200 to be automatically adjusted according to the natural movement of the finger when the operating portion 120 moves along the first guide segment 210 , so that the operator can apply force more evenly during the dialing process.

[0061] As an optional embodiment, the shape of the first guide section 210 can be designed to be other curved shapes, such as a parabola or an ellipse, according to different operating requirements, so as to adapt to different operating environments and ensure the flexibility and accuracy of the operation.

[0062] In addition, the second guide section 220 extends in a counterclockwise direction from the connection 221 with the first guide section 210. The shape design of the second guide section 220 is intended to provide a preset path in the counterclockwise direction to guide the operating unit 120 to move along the second preset path. As the operating unit 120 moves, the distance between the second guide section 220 and the connection node 130 presents a gradual trend. For example, the second guide section 220 is in a straight line shape. This gradual change can be adjusted according to application requirements to gradually increase or decrease. When the distance between the second guide section 220 and the connection node 130 gradually increases, the rotation of the finger and unnecessary hand swing when the finger pushes back the lever 100 are avoided, thereby reducing finger fatigue; and when the distance between the second guide section 220 and the connection node 130 gradually decreases, for the operator who bends the finger to move the lever 100, the bending of the finger joint is reduced, so that the finger can better apply force, thereby reducing finger fatigue.

[0063] As an optional embodiment, in order to adapt to different operating requirements and environments, the shape of the second guide segment 220 is not limited to a simple curve, but can be designed into a variety of shapes. For example, in some application scenarios, the second guide segment 220 can be designed as an irregular curve with a larger bending radius to provide higher precision and controllability in complex operating environments.

[0064] As an optional embodiment, refer to Figure 6 As shown, the toggle assembly also includes a feedback segment 222, which is smoothly connected to the ends of the first guide segment 210 and the second guide segment 220. Its main function is that when the operating part 120 follows the swinging part 110 and moves to the respective ends along the first guide segment 210 or the second guide segment 220, the feedback segment 222 can cause the spacing between the operating part 120 and the connection node 130 to change suddenly, which is specifically manifested as a sudden increase or decrease in the spacing, such as tilting outward or bending inward. The purpose of this design is that when the active bending segment 511 is close to the maximum bending position, the operating part 120 will have feedback of sharp movement up or down or slight shaking through the guidance of the feedback segment 222. Through this feedback, the operator can promptly perceive that the active bending segment 511 is close to the extreme bending position during operation, thereby improving the accuracy and control of the operation.

[0065] As an optional embodiment, refer to Figure 3 As shown, the swinging portion 110 includes a sliding section 111 and a fixed section 112, wherein the sliding section 111 is fixedly connected to the operating portion 120 to transmit the operating force of the operator, and the fixed section 112 is connected to the traction wheel 710 by bolts to drive the traction wheel 710 to rotate. The sliding section 111 and the fixed section 112 are mutually telescopic through a telescopic structure.

[0066] The sliding section 111 is also fixed with a moving section 1111, and the moving section 1111 can move precisely along the first preset path of the guide section 200. In actual operation, the sliding section 111 moves smoothly along the guide section under the guidance of the moving section 1111 as the operating section 120 moves, so that the operating section 120 can move smoothly along the second preset path. This design not only ensures the smoothness of operation, but also can automatically adjust the telescopic state between the sliding section 111 and the fixed section 112 according to the strength and position changes of the operator to adapt to different operation rhythms and bending control requirements.

[0067] As an optional embodiment, the guide portion 200 can be a guide groove 241 arranged on the outside of the endoscope housing 600, or a guide strip 242 integrally fixedly installed on the outside of the endoscope housing 600. Two implementation methods are provided according to different design requirements to guide the precise movement of the movable portion 1111.

[0068] In the embodiment where the guide portion 200 is a guide groove 241, refer to Figure 3 As shown, the guide groove 241 is provided on the outer side of the endoscope housing 600 and extends along the first preset path of the housing 600. At this time, the moving part 1111 is a first slider 1112, and the first slider 1112 is embedded in the guide groove 241 by sliding fit, wherein the first slider 1112 can use a roller. The first slider 1112 is tightly fitted with the guide groove 241, so that the first slider 1112 can slide smoothly along the preset path of the guide groove 241, while providing a stable guiding effect.

[0069] In the embodiment where the guide portion 200 is a guide bar 242, refer to Figure 6 and Figure 7 As shown, the guide bar 242 is fixedly arranged outside the endoscope housing 600 and is also arranged along the external path of the housing 600 to guide the movement of the moving part 1111. In this case, the moving part 1111 is a second slider 1113, wherein the second slider 1113 can also use a roller, and the second slider 1113 cooperates with the guide bar 242 by sliding engagement or abutment. The design of engagement or abutment can ensure that the slider remains stable when moving along the guide bar 242 and prevents sliding deviation caused by external force.

[0070] The two different forms of cooperation between the guide part 200 and the moving part 1111 provide flexible options for different operation requirements. Both the first slider 1112 sliding in the guide groove 241 and the second slider 1113 cooperating with the guide bar 242 can ensure accurate guidance for the operator during operation.

[0071] As another optional embodiment, refer to Fig. 9 As shown, when the guide portion 200 is a guide bar 242 fixedly mounted on the outside of the shell 600 of the endoscope, and the second slider 1113 is in contact with the side wall of the guide bar 242 away from the connection node 130, an elastic member 300 is arranged between the sliding section 111 and the fixed section 112. In this embodiment, the elastic member is a tension spring 310, and hooks 311 are arranged at both ends of the tension spring 310. Hook rings 312 are fixedly welded to the end of the fixed section 112 and the inner wall of the groove of the sliding section 111 for the fixed section 112 to be inserted. The hooks 311 at both ends of the tension spring 310 are hooked on the hook rings 312, and the tension spring 310 is used to drive the second slider 1113 to always maintain contact with the side wall of the guide bar 242.

[0072] It should be noted that, refer to Figure 6 and Figure 8As shown, in order to facilitate the installation of the tension spring 310, a mounting hole 1114 can be pre-opened on the sliding section 111. The mounting hole 1114 can be located on the inner side or the outer side of the sliding section 111. The position of the mounting hole 1114 can be set according to specific needs.

[0073] As an optional embodiment, refer to Fig.10 and Fig.11 As shown, the operating portion 120 includes a touch end 121 and a connection end 122, wherein the touch end 121 is rotatably sleeved on the connection end 122, and the connection end 122 is integrally formed with the swing portion 110. Through the relative rotation of the touch end 121 and the connection end 122, when the operator's finger moves the operating portion 120, the finger can always keep in contact with the initial touch position and follow the rotation of the touch end 121. This design can effectively reduce the friction between the finger and the touch end 121, improve the comfort of operation, and avoid friction damage or fatigue caused by long-term operation.

[0074] As an optional embodiment, refer to Fig.10 and Fig.11 As shown, a friction layer 1221 is provided along a circumferential portion of the outer wall of the connection end 122, or the friction layer 1221 is arranged on the entire outer wall. In this embodiment, the friction layer 1221 adopts a convex strip structure, which can increase the contact friction between the finger and the operating part 120, thereby improving the control force and operation accuracy during the dialing operation.

[0075] When the friction layer 1221 is only partially provided on a part of the outer wall of the connection end 122, a torsion piece 400 is further provided between the connection end 122 and the touch end 121 for adjusting the position of the friction layer 1221. In the present embodiment, the torsion piece 400 is a torsion spring 410, which is installed between the connection end 122 and the touch end 121. During the installation process, the touch end 121 can be designed as a two-half structure to facilitate the installation of the torsion spring 410. Specifically, an installation gap 1220 for accommodating the torsion spring 410 is provided inside the connection end 122, one end of the torsion spring 410 is fixed to the side wall of the installation gap 1220 by a screw 800, and the other end is clamped between the two halves of the touch end 121. The two halves of the touch end 121 are fixed by screws 800 and sleeved on the connection end 122 to form a stable rotation fit.

[0076] The design of the torque member 400 is intended to ensure that when the lever 100 is in the initial position 230, the friction layer 1221 is always in the preset position, and the preset position is exactly aligned with the position of the finger. In this way, when the operator moves the operating part 120, there is no need to adjust the finger position, and the finger can naturally fit the friction layer 1221, thereby improving the stability and accuracy of the operation. The elastic force of the torsion spring 410 ensures that the friction layer 1221 is always in the best position, avoiding the position displacement of the friction layer 1221 due to multiple operations. In addition, the setting of the torsion spring 410 can also provide a certain feedback force when the operating part 120 returns to its original position, making the operation process smoother.

[0077] As an optional embodiment, an endoscope handle includes a housing 600, on which the toggle assembly in the above solution is installed. The toggle assembly achieves precise control of the endoscope insertion portion 510 through the cooperation of the toggle rod 100 and the guide portion 200, and makes the finger toggle force more smooth, reducing the fatigue of the hand after long-term use.

[0078] As another optional embodiment, refer to Figure 1 As shown, an endoscope includes the endoscope handle and the insertion part 510 in the above technical solution, wherein the handle 500 is the endoscope handle in the above solution, and the handle 500 is connected to the insertion part 510. By operating the toggle assembly, the operator can accurately control the bending angle of the insertion part 510, realize flexible endoscope operation, ensure smooth operation, and is suitable for the use of endoscopes in various complex medical scenarios.

[0079] 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.

[0080] 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.

[0081] 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, wherein a transmission member (700) for controlling a traction rope (720) to drive the bending of an active bending section (511) is arranged in a housing (600) of the endoscope, characterized in that: The toggle assembly comprises: A lever (100), the lever (100) comprising a swinging portion (110) and an operating portion (120) connected to each other, the swinging portion (110) being used to connect to a transmission member (700) to control a traction rope (720), the connection position between the swinging portion (110) and the transmission member (700) being a connection node (130), and a movable stroke (140) being provided between the operating portion (120) and the connection node (130); A guide portion (200), the guide portion (200) having a first preset path, the guide portion (200) being used to adjust the distance between the operating portion (120) and the connection node (130) so that the operating portion (120) moves along a second preset path; The guide portion (200) comprises a first guide section (210) and a second guide section (220); the first guide section (210) and the second guide section (220) are smoothly connected to each other; the lever (100) is in an initial position (230) from the connection point (221) between the first guide section (210) and the second guide section (220), that is, the active bending section (511) is in an unbent state, wherein: The first guide section (210) extends in a clockwise direction from a connection point (221) with the second guide section (220) with the connection node (130) as a center, and the distance between the first guide section (210) and the connection node (130) extending in a counterclockwise direction gradually increases or decreases, so that the operating portion (120) follows the first guide section (210) to move along a second preset path; The second guide section (220) extends counterclockwise from a connection point (221) with the first guide section (210) with the connection node (130) as a center, and the distance between the second guide section (220) extending in the counterclockwise direction and the connection node (130) gradually increases or decreases, so that the operating portion (120) follows the second guide section (220) to move along a second preset path; The swinging portion (110) comprises a sliding section (111) and a fixed section (112); the sliding section (111) is fixedly connected to the operating portion (120); the fixed section (112) is connected to the transmission member (700); the sliding section (111) and the fixed section (112) are arranged to be telescopic with respect to each other; a moving portion (1111) is fixedly provided on the sliding section (111); and the moving portion (1111) is capable of moving along the first preset path of the guide portion (200).

2. A toggle assembly according to claim 1, characterized in that: The device further comprises a feedback section (222), the feedback section (222) being smoothly connected to the ends of the first guide section (210) and the second guide section (220), and being used to cause the distance between the operating section (120) and the connection node (130) to suddenly increase or suddenly decrease when the operating section (120) follows the swinging section (110) to move to the feedback section (222) at the respective ends in the first guide section (210) or the second guide section (220).

3. A toggle assembly according to claim 2, characterized in that: The guide portion (200) is a guide groove (241) provided on the outside of the housing (600) of the endoscope or a guide strip (242) fixedly arranged on the outside of the housing (600) of the endoscope; When the guide portion (200) is a guide groove (241) provided on the outside of the housing (600) of the endoscope, the movable portion (1111) is a first sliding block (1112), and the first sliding block (1112) is slidably fitted in the guide groove (241); When the guiding portion (200) is a guiding strip (242) fixedly mounted on the outside of the shell (600) of the endoscope, the movable portion (1111) is a second sliding block (1113), and the second sliding block (1113) is slidably engaged or abutted against the guiding strip (242).

4. A toggle assembly according to claim 3, characterized in that: When the guide portion (200) is a guide bar (242) fixedly mounted on the outside of the housing (600) of the endoscope, and the second slider (1113) is in contact with a side wall of the guide bar (242) away from the connection node (130), an elastic member (300) is provided between the sliding section (111) and the fixed section (112), and the elastic member (300) is used to drive the second slider (1113) to always maintain contact with the side wall of the guide bar (242).

5. The toggle assembly according to claim 1, characterized in that: The operating portion (120) comprises a touch end (121) and a connection end (122); the touch end (121) is rotatably sleeved on the connection end (122); and the connection end (122) is fixedly connected to the swing portion (110).

6. A toggle assembly according to claim 5, characterized in that: The outer wall of the connection end (122) is provided with a friction layer (1221) in a partial circumferential region or is completely provided with the friction layer (1221); When a friction layer (1221) is provided along a circumferential portion of the outer wall of the connection end (122), a torque piece (400) is provided between the connection end (122) and the contact end (121), and the torque piece (400) is used to drive the friction layer (1221) so that when the lever (100) is in an initial position (230), the friction layer (1221) is always located at a preset position.

7. An endoscope handle, characterized in that: It comprises a housing (600) 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: The endoscope comprises a handle (500) and an insertion portion (510), wherein the handle (500) is the endoscope handle according to claim 7, and the handle (500) is connected to the insertion portion (510).

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