A dial button, a dial rod device, an operating handle and an endoscope

Abstract

The present invention discloses a dial button, a lever device, an operating handle, and an endoscope, and relates to the field of medical devices. The dial button includes a toggle member and a limiting member. The toggle member is movably mounted on the lever body of the toggle member to switch between an unlocked position and a locked position. During the toggle member's switching between the unlocked position and the locked position, the toggle member drives the locking member of the toggle member to switch the toggle member between an unlocked mode and a locked mode. The limiting member is connected to the toggle member. The limiting member is capable of mutually limiting and locking the toggle member and the lever body. The limiting and locking effect of the limiting member can be directly exerted on the toggle member by the limiting member itself, thereby avoiding the need for an intermediate structure between the limiting member and the toggle member, reducing transmission losses caused by the intermediate structure, and improving transmission efficiency and response speed. At the same time, the number and size of mechanical transmission gaps between the limiting member and the toggle member are reduced, thereby avoiding problems such as transmission failure caused by excessive transmission gaps.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a dial button, a dial rod device, an operating handle and an endoscope. Background Art

[0002] An endoscope is a commonly used medical device that can directly access the body's natural channels for inspection, providing medical professionals with comprehensive diagnostic information for treating diseases. The endoscope includes an operating handle. During operation, medical professionals manipulate the handle to pull the active bending section at the front end of the insertion section via a traction cord, thereby bending the insertion section and changing its orientation.

[0003] During surgery, medical personnel who need to operate the endoscope must constantly press the lever of the operating handle. Otherwise, the insertion portion may bend or deviate, which makes the operation of the endoscope extremely inconvenient and difficult to apply in practice. Some existing operating handles have a self-locking structure, but the locking effect of the self-locking structure is poor and the reliability is low, which reduces the reliability of the actual operation of the endoscope. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned related technologies, the present application provides a dial button, a dial rod device, an operating handle and an endoscope to at least partially solve the above-mentioned technical problems.

[0005] In the first aspect, the present application provides a toggle button for a lever device of an endoscope, the toggle button including a toggle member and a limit member, the toggle member being movably mounted on the lever body of the toggle member to switch between an unlocked position and a locked position, and in the process of switching the toggle member between the unlocked position and the locked position, the toggle member drives the locking member of the toggle member to switch the toggle member between an unlocked mode and a locked mode, the limit member being connected to the toggle member, and when the toggle member is in the locked position, the toggle member is locked by the limit member and the lever body, and when the toggle member is in the unlocked position, the limit member and the lever body are unlocked.

[0006] On the second aspect, the present application provides a lever device for an endoscope, the lever device including a lever body, a dial button as mentioned above, and a locking member, the lever body being suitable for connection with the traction mechanism of the endoscope, the dial member being movably mounted on the lever body, the locking member being connected to the dial member, and when the dial member switches between the unlocked position and the locked position, the dial member switches the lever device between the unlocked mode and the locked mode by driving the locking member of the lever device.

[0007] In a third aspect, the present application provides an operating handle, comprising a traction mechanism and a lever device as described above, wherein the lever body is connected to the traction mechanism.

[0008] In a fourth aspect, the present application provides an endoscope comprising the operating handle as described above.

[0009] The technical solution employed by the present invention achieves the following beneficial effects: a toggle member can actuate a locking member, which is disposed on the lever body and driven by the toggle member. The locking member can switch the lever device between an unlocked mode and a locked mode. When the toggle member is in the locked position, the limiting member can be locked with the lever body to lock the lever device in the locked mode. During this period, the locking action is achieved by the toggle member directly driving the locking member to lock the lever device, resulting in a simpler and more reliable transmission structure and improved transmission efficiency. The limiting member is connected to the toggle member and can lock the toggle member and the lever body relative to each other. The limiting member's locking effect is directly exerted on the toggle member by the limiting member itself, eliminating the need for an intermediate structure between the limiting member and the toggle member, reducing transmission losses caused by the intermediate structure, improving transmission efficiency and response speed, and also reducing the number and size of mechanical transmission gaps between the limiting member and the toggle member, thereby avoiding transmission failures caused by excessive transmission gaps and improving the operational reliability of the endoscope. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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.

[0011] Figure 1 is a schematic structural diagram of an endoscope shown in an exemplary embodiment of the present application;

[0012] Figure 2 is a structural schematic diagram of a lever device shown in an exemplary embodiment of the present application;

[0013] Figure 3 is a cross-sectional view of a lever device from another perspective, showing an exemplary embodiment of the present application;

[0014] Figure 4 yes Figure 3 The enlarged view of point a in the figure;

[0015] Figure 5 is a cross-sectional view of a lever device in another state shown in an exemplary embodiment of the present application;

[0016] Figure 6 is a cross-sectional view of a lever device and a traction mechanism shown in an exemplary embodiment of the present application;

[0017] Figure 7 is a structural schematic diagram of a lever body shown in an exemplary embodiment of the present application;

[0018] Figure 8 is a structural schematic diagram of another lever body shown in an exemplary embodiment of the present application;

[0019] Figure 9 is a structural schematic diagram of another lever body shown in an exemplary embodiment of the present application;

[0020] Figure 10 is a cross-sectional view of another lever device shown in an exemplary embodiment of the present application;

[0021] Figure 11 1 is a cross-sectional view of another lever device shown in an exemplary embodiment of the present application.

[0022] In the figure: 1. endoscope; 100. lever device; 110. lever body; 111. pivot; 1111. first end; 1112. second end; 112. guide rod; 113. connecting rod; 1131. accommodating space; 1132. first connecting rod; 1133. second connecting rod; 114. recessed portion; 115. rotating shaft; 116. protective cover; 120. locking member; 121. driven portion; 122. stop portion; 123. strip hole; 130. dial button; 131. toggle member; 132. limiting member; 1321. limiting body; 1322. elastic member; 1323. mounting cavity; 200. traction mechanism; 300. operating handle. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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".

[0026] Some existing endoscope operating handles have a self-locking function. Specifically, the operating handle has a positioning structure that can provide a positioning function for the self-locking force-bearing member. The positioning structure positions and constrains the self-locking force-bearing member, positioning it in a certain position and achieving the self-locking function. However, there are many intermediate components between the existing self-locking force-bearing member and the positioning structure. For example, the self-locking force-bearing member is two correspondingly arranged gears, and the traction mechanism is used to control the bending setting of the endoscope insertion portion. The two gears can separate or mesh with each other. When the two gears are meshed, the toggle mechanism used by medical personnel to toggle is locked, thus achieving self-locking operation. The positioning structure is a spring structure. The toggle mechanism is elastically limited by the spring structure through an intermediate component. When the intermediate component is driven and limited by the spring structure, the toggle mechanism can remain stably locked. The transmission structure between the positioning structure and the self-locking force-bearing member is complex, the force loss is large, and the operational response is not very good. Moreover, with continuous use, the transmission efficiency and self-locking effect of the positioning structure and self-locking force-bearing parts continue to decline, making them difficult to apply to complex surgical operations. The operating handle has defects such as requiring a large force to drive and insufficient switching smoothness, which seriously interfere with the normal progress of the operation.

[0027] This application provides a dial button 130, please refer to Figure 1 as well as Figure 2 The dial button 130 is used for the lever mechanism 100 of the endoscope 1. The lever mechanism 100 is a structure capable of driving the endoscope 1 to bend and can be operated by medical personnel. By using the dial button 130, the medical personnel can rotate the lever mechanism 100, which in turn drives the traction mechanism 200 of the endoscope 1. The traction mechanism 200 can then bend the insertion portion of the endoscope 1. This allows the distal end of the insertion portion to be oriented in a predetermined direction for observation or diagnosis.

[0028] In the examples of this application, please refer to Figure 2 as well as Figure 3 The dial button 130 may include a dial member 131 and a limiting member 132, and the dial member 131 and the limiting member 132 are connected to each other.

[0029] Please continue reading Figure 3The toggle member 131 is movably mounted on the lever body 110 of the toggle device 100. The toggle body 110 can be a structure within the toggle device 100 primarily used to manipulate the bending of the endoscope 1. The toggle body 110 can be manipulated by a medical professional to rotate. The toggle member 131 can be mounted on the toggle body 110, allowing the medical professional to simultaneously manipulate the toggle member 131 while manipulating the lever body 110. This increases the medical professional's single-finger operation capability, avoids frequent hand changes or finger movements during surgery, and reduces operational difficulty.

[0030] See also Figure 3 When the toggle member 131 moves relative to the toggle lever body 110, it switches between an unlocked position and a locked position. The unlocked position and the locked position are two different positions of the toggle member 131 relative to the toggle lever body 110. In other words, both the unlocked position and the locked position are within the movement path of the toggle member 131, and medical personnel can easily toggle the toggle member 131 to switch between these two positions.

[0031] Furthermore, when the toggle member 131 switches between the unlocked position and the locked position, the toggle member 131 drives the locking member 120 of the toggle lever device 100, thereby switching the toggle lever device 100 between the unlocked mode and the locked mode. The locking member 120 is a component that can limit the locking or unlocking of the toggle lever body 110. The locking function can be provided by damping limit, abutment limit, etc., and is not limited to this. Specifically, if Figure 3 as well as Figure 4 As shown, when the toggle member 131 is in the unlocking position, the lever device 100 is in the unlocking mode. Figure 5 As shown, Figure 5 The schematic diagram shows the structure of the toggle member 131 in the locked position. The toggle member 131 synchronously drives the locking member 120. When the locking member 120 moves to a certain position, it can provide a limiting effect on the toggle lever body 110, which stops the toggle lever body 110 from moving, thereby completing the self-locking operation of the toggle lever device 100. This eliminates the situation where medical personnel have to manually press the toggle lever of the operating handle 300 to prevent the insertion portion from bending or deflecting, reduces the risk of incorrect operation, and improves convenience. During this period, the locking action is achieved by the toggle member 131 directly driving the locking member 120 to lock the toggle lever device 100, resulting in a simpler and more reliable transmission structure and better transmission effect. The toggle member 131 is configured to directly drive the locking member 120, allowing the locking member 120 to directly achieve the locking operation. The locking operation transmission structure is simple and reliable, which helps to reduce the size of the toggle lever device 100 and improve transmission efficiency.

[0032] See also Figure 3The limiting member 132 is connected to the toggle member 131. Specifically, the limiting member 132 can be fixedly connected to the toggle member 131. The fixed connection can be detachable or non-detachable. Exemplarily, the limiting member 132 can be integrally formed with the toggle member 131, and the limiting member 132 is elastic, capable of abutting against the toggle lever body 110 for position retention. Alternatively, the limiting member 132 can be movably connected to the toggle member 131, and the limiting member 132 can be movably disposed within a channel within the toggle member 131, extending or retracting into the channel. While extending through the channel, the limiting member 132 abuts against the toggle lever body 110 for position retention. The connection method between the limiting member 132 and the toggle member 131 is not limited herein. When the toggle member 131 is in the locked position, the toggle member 131 is locked to the toggle lever body 110 by the limiting member 132. The limiting member 132 can achieve positional locking, thereby locking the toggle member 131 into the locked position. When the toggle member 131 is in the unlocked position, the limiter 132 is unlocked from the lever body 110, placing the toggle member 131 in unlocked mode. This allows medical personnel to freely toggle the toggle member 131 to drive the lever body 110 and control the bending of the insertion portion of the endoscope 1. The limiter 132 is connected to the toggle member 131 and can lock the toggle member 131 and the lever body 110 in a mutually restrained manner. The locking effect of the limiter 132 is directly exerted on the toggle member 131 by the limiter 132 itself, eliminating the need for an intermediate structure between the limiter 132 and the toggle member 131. This reduces transmission losses caused by the intermediate structure and improves transmission efficiency and response speed. It also reduces the number and size of mechanical transmission gaps between the limiter 132 and the toggle member 131, avoiding transmission failures caused by excessive transmission gaps and improving the operational reliability of the endoscope 1.

[0033] In one embodiment, see Figure 3The retaining member 132 defines a mounting cavity 1323, which fits within at least a portion of the lever body 110. The mounting cavity 1323 is adapted to receive the lever body 110. Furthermore, the mounting cavity 1323 serves as a guide, extending in a designated direction. The lever body 110 can be positioned within the mounting cavity 1323 in the designated direction, allowing the lever body 110 to slide relative to the retaining member 132 in the designated direction, thereby preventing the lever body 110 from excessive displacement, shaking, or deviating from its predetermined trajectory. The retaining member 132 is disposed within the mounting cavity 1323, ensuring that the retaining member 132 and the lever body 110 are in positional engagement. Furthermore, the retaining member 132 and the lever body 110 abut against each other, with the contact surface of the lever body 110 contacting the retaining member 132 located within the mounting cavity 1323, allowing the retaining member 132 to be positioned relative to the contact surface. The mounting cavity 1323 can improve the protection capability of the limit member 132 and the lever body 110, and provide stable support and positioning, so that the limit member 132 can more stably and accurately play a limiting role on the lever body 110 during operation, and effectively avoid the limit failure caused by external interference factors, such as dust.

[0034] In another embodiment, please refer to Figure 4 The limiting member 132 may further include a limiting body 1321 and an elastic member 1322. The limiting body 1321 may be made of a metal material, such as copper or stainless steel, which is wear-resistant and improves the reliability of the limiting member 132. The elastic member 1322 may be a spring or a spring, without limitation. The limiting body 1321 is movably mounted on the toggle member 131. The elastic member 1322 is used to drive the limiting body 1321. The elastic member 1322 generates an elastic force that drives the limiting body 1321 toward the recessed portion 114 of the lever body 110, thereby locking the limiting body 1321 in the recessed portion 114 of the lever body 110. The recessed portion 114 may be a groove, without limitation. During this period, driven by the elastic member 1322, the limiting body 1321 and the recessed portion 114 elastically cooperate, allowing the limiting body 1321 to fit tightly against the recessed portion 114. Furthermore, during the switching process of the toggle member 131, when the medical staff applies greater force to the toggle member 131, the limiting body 1321 can overcome the elastic force of the elastic member 1322, allowing the limiting body 1321 to contact and limit the recessed portion 114. This allows the contact operation to be completed without the need for additional components, improving user flexibility and reducing the number of operation steps. In addition, because the elastic fit can effectively buffer the impact of dynamically changing external forces, it can prevent component damage caused by stress concentration caused by rigid connections.

[0035] Preferably, see Figure 3 , the movable path of the limiting body 1321 (such as Figure 3L2 in FIG) and the active path of the toggle member 131 (as shown in FIG Figure 3 131). There is an included angle between the limiting body 1321 and the toggle member 131, which can be 0°, 45° or 90° and is not limited. When the toggle member 131 moves along its own preset path, since the movable path of the limiting body 1321 intersects with it, the limiting body 1321 can produce a mutual limiting effect with the toggle member 131 at a specific time and position. The limiting body 1321 can directly block the movement of the toggle member 131 in a vertical or intersecting direction, effectively avoiding the self-locking ability caused by the uncontrolled movement of the toggle member 131.

[0036] In other cases, the stopper 132 can be an elastic structure provided on the toggle member 131, such as an elastic block or a spring, and the stopper 132 can be deformed and elastically engaged with the recessed portion 114. Furthermore, the stopper 132 can be integrated with the toggle member to improve the stopper effect and integration, reduce the number of components, and improve assembly efficiency.

[0037] To achieve the above-mentioned and other related purposes, the present application provides a lever device 100. Figure 2 The lever device 100 is used for the endoscope 1. The lever device 100 can drive the insertion portion of the endoscope 1 to bend, and the lever device 100 can be operated by medical staff.

[0038] See also Figure 6 The lever device 100 may include a lever body 110, a locking member 120, and a dial button 130 as in any of the above solutions, wherein the dial button 130 connects the locking member 120 and the lever body 110. In this way, the lever device 100 has the beneficial effects of any of the above solutions, which will not be described in detail here.

[0039] Please continue reading Figure 6 The lever body 110 is suitable for connecting with the traction mechanism 200 of the endoscope 1. Furthermore, the connection between the lever body 110 and the traction mechanism 200 is a transmission connection, that is, the lever body 110 can drive the traction mechanism 200, and the traction mechanism 200 can directly drive the distal end of the insertion portion of the endoscope 1 to bend toward a specified direction. The toggle member 131 is movably mounted on the lever body 110, and the locking member 120 is connected to the toggle member 131. When the toggle member 131 switches between the unlocked position and the locked position, the toggle member 131 drives the locking member 120 of the lever device 100 to switch the lever device 100 between the unlocked mode and the locked mode.

[0040] Please continue reading Figure 6When the toggle member 131 is in the locked position, the toggle member 131 is locked to the lever body 110 via the limit member 132. The limit member 132 can achieve limit locking, so that the toggle member 131 can be locked in the locked position. Furthermore, the traction mechanism 200 can include a housing and a traction wheel. The toggle member 131 can drive the locking member 120 to abut against the housing of the traction mechanism 200 or the operating handle 300, etc., generating static friction between the housing and the locking member 120. The static friction can limit the relative movement between the locking member 120 and the housing, thereby limiting the rotation of the lever body 110 relative to the housing. At this time, the toggle lever device 100 can be locked, and the traction wheel of the traction mechanism 200 and the insertion portion of the endoscope 1 can remain in their original state. When the toggle member 131 is in the unlocked position, the stopper 132 is unlocked from the lever body 110, placing the toggle member 131 in unlocked mode. This allows medical personnel to freely toggle the toggle member 131 to rotate the insertion portion of the endoscope 1 in a designated direction. This eliminates the need for medical personnel to continuously press the lever of the operating handle 300 during operation, reducing the risk of incorrect operation and preventing adverse conditions such as bending or misalignment of the insertion portion of the endoscope 1. This improves the convenience of operation for medical personnel and allows them to focus more on the medical procedure itself. Furthermore, this simple transmission structure not only provides high reliability and reduces the potential for failures caused by complex transmission components, but also helps reduce the overall size of the lever device 100.

[0041] In addition, the smaller size of the lever device 100 can make the endoscope 1 more compact and lightweight, making it easier for medical staff to hold and operate. At the same time, the simple transmission structure can effectively improve the transmission efficiency, making the operation response faster and more accurate.

[0042] In the examples of this application, please refer to Figure 7 The toggle lever body 110 may include a pivot 111, a guide rod 112 and a connecting rod 113. The pivot 111 is transmission-connected to the traction mechanism 200, and the connecting rod 113 is connected between the guide rod 112 and the pivot 111. The connecting rod 113 can extend the lever arm. According to the principle of lever, the longer the lever arm, the greater the torque generated under the same force. The toggle member 131 is sleeved on the guide rod 112 and slides with the guide rod 112. The locking member 120 is rotationally connected to the connecting rod 113. The guide rod 112 is passed through the toggle member 131 and slides with the guide rod 112. The locking member 120 is rotationally connected to the connecting rod 113. The guide rod 112 plays a guiding role, preventing the toggle button 130 from deflecting or shaking. The guide rod 112 can ensure that even the slightest displacement of the toggle button 130 can be precisely controlled, thereby improving the movement accuracy and stability.

[0043] In a more specific embodiment, please refer to Figure 7, the pivot 111, the connecting rod 113 and the guide rod 112 are integrally formed. Furthermore, the pivot 111, the connecting rod 113 and the guide rod 112 can be integrally injection molded. It is understandable that the integral molding setting can make it possible for there to be no assembly gap or transmission gap between the various parts of the lever body 110, and can withstand external forces more evenly. This can reduce the phenomenon of local stress concentration, thereby reducing the risk of structural deformation or damage. In addition, the lever body 110 can be detachably connected to the traction mechanism 200, and the integrally molded pivot 111, the connecting rod 113 and the guide rod 112 can be directly detachably set together with the traction mechanism 200, thereby improving the disassembly efficiency of the lever body 110 and ensuring the maintenance effect of the lever device 100.

[0044] In another embodiment, please refer to Figure 7 , the pivot 111 and the connecting rod 113 are detachably connected. The connection method between the pivot 111 and the connecting rod 113 can be a threaded connection, a snap connection, etc., and is not limited. The connecting rod 113 can drive the pivot 111, and the pivot 111 rotates around its own axis so that the pivot 111 drives the traction mechanism 200. At the same time, the pivot 111 and the connecting rod 113 can be directly detached, which can conveniently separate the pivot 111 from the connecting rod 113 and inspect, repair or replace individual components. At the same time, it can also facilitate the assembly of the lever device 100 and improve the assembly efficiency of the endoscope 1.

[0045] In this example, please continue to refer to Figure 7 The pivot 111 has a first end 1111 and a second end 1112 that are spaced apart from each other, and at least one of the first end 1111 and the second end 1112 can be connected to the engagement rod 113. This enables the engagement rod 113 to drive the pivot 111 to rotate under the drive of the guide rod 112, so that the distal end of the insertion portion of the endoscope 1 bends toward a specified direction.

[0046] In one embodiment, see Figure 7 , the second end 1112 extends out of the traction mechanism 200 and is connected to the connecting rod 113. At least part of the structure of the pivot 111 is in the traction mechanism 200 and can drive the traction mechanism 200. The pivot 111 can ensure the effective transmission of force or torque to the traction mechanism 200, which can prevent external contaminants from entering the traction mechanism 200 and improve the protection capability. Among them, the transmission method between the pivot 111 and the traction mechanism 200 can be a spline, gear or other connection method, and is not limited. In the pivot 111, at least the second end 1112 is extended out of the traction mechanism 200, and it can be connected to the connecting rod 113. This arrangement allows the locking member 120 and the dial button 130 to be arranged outside the traction mechanism 200, which is convenient for installation and detection and improves flexibility.

[0047] In another embodiment, see Figure 8 The connecting rod 113 may include a first connecting rod 1132 and a second connecting rod 1133. The first connecting rod 1132 and the second connecting rod 1133 respectively connect opposite ends of the guide rod 112. The first end 1111 is connected to the end of the first connecting rod 1132 away from the guide rod 112, and the second end 1112 is connected to the end of the second connecting rod 1133 away from the guide rod 112. By connecting the first and second connecting rods 1132 and 1133 to the opposite ends of the guide rod 112, the stability of the entire structure around the pivot 111 is improved. When medical personnel drive the guide rod 112 through the toggle 131, the first and second connecting rods 1132 and 1133 can provide effective support and restraint when the guide rod 112 rotates around the pivot 111 or is subjected to external forces. The first and second connecting rods 1132 and 1133 can disperse and transmit forces from different directions, preventing excessive twisting or displacement of the guide rod 112 at the pivot 111 due to uneven force.

[0048] It is understandable that the recessed portion 114 can be provided on a side of the guide rod 112 close to the engagement rod 113, that is, the recessed portion 114 can be provided on the end of the engagement rod 113 close to the guide rod 112. Furthermore, when the engagement rod 113 can include a first engagement rod 1132 and a second engagement rod 1133, the number of the recessed portions 114 and the locking members 120 can both be at least two, and the at least two recessed portions 114 and the at least two locking members 120 can be provided on the first engagement rod 1132 and the second engagement rod 1133, respectively. Medical personnel can toggle the toggle member 131 in two opposite directions, and the toggle member 131 can drive at least one locking member 120 to abut against the traction mechanism 200 to achieve a locking operation.

[0049] In another embodiment, the connecting rod 113 includes a first connecting rod 1132 and a second connecting rod 1133. While the first connecting rod 1132 and the second connecting rod 1133 are respectively connected to the opposite ends of the guide rod 112, the second end 1112 extends out of the traction mechanism 200 and connects the locking member 120 and the dial button 130. It can take into account both stability and installation and detection flexibility, which will not be elaborated here.

[0050] In the examples of this application, please refer to Figure 9The engaging rod 113 has a housing 1131 within which the locking member 120 is accommodated. The housing 1131 is adapted to accommodate the locking member 120. The actuating member 131 can drive the locking member 120, causing it to extend out of the housing 1131 and engage with the traction mechanism 200. Exemplarily, the traction mechanism 200 may include a housing and a traction wheel. One end of the locking member 120 can extend out of the housing 1131 and abut against the housing of the traction mechanism 200, thereby limiting relative rotation between the lever assembly 100 and the traction mechanism 200 housing. Simultaneously, the traction wheel of the traction mechanism 200 is also locked in position, preventing it from rotating relative to the housing, thereby achieving a locking operation for the insertion portion of the endoscope 1. This arrangement utilizes the housing 1131 by placing the locking member 120 within the housing 1131. The intervals between the components are reduced, so that the lever body 110 has a smaller volume, and the use stability and protection capability of the locking member 120 are improved.

[0051] In some other cases, the locking member 120 can also extend out of the accommodating space 1131 and directly abut against the gripping portion of the operating handle 300 to limit the position. The gripping portion can be a portion of the operating handle 300 that is suitable for the user to grip, so that the lever device 100 is limited and locked. It will not be elaborated here.

[0052] Preferably, please refer to Figure 2 The lever body 110 may further include a protective cover 116, which is detachably connected to the engagement rod 113. Furthermore, the protective cover 116 can be connected to the side of the engagement rod 113 away from the traction mechanism 200. The protective cover 116 is detachably connected to the engagement rod 113 to shield the accommodating space 1131. This arrangement can effectively prevent foreign matter such as dust and debris from entering the accommodating space 1131. The protective cover 116 can enhance the protective capability and extend the service life of the engagement rod 113 and the locking member 120.

[0053] See also Figure 6 The length of the locking member 120 is smaller than that of the connecting rod 113. Compared to existing structures with longer transmission rods and larger transmission amplitudes, which result in lower rotation efficiency, the shorter length of the locking member 120 reduces its rotation amplitude and enables faster transmission. This also allows the locking member 120 to be internally located within the connecting rod 113, reducing the volume of the accommodating space 1131 and improving the structural strength of the connecting rod 113.

[0054] Please continue reading Figure 6The locking member 120 has a driven portion 121 and a stop portion 122. A rotating shaft 115 is provided in the accommodating space 1131. The driven portion 121 and the stop portion 122 are both rotatably arranged around the rotating shaft 115. The driven portion 121 is connected to the toggle member 131. The locking member 120 has a bar-shaped hole 123. The rotating shaft 115 is passed through the bar-shaped hole 123. The rotating shaft 115 can move in the bar-shaped hole 123. When the toggle member 131 switches from the unlocking position to the locking position, the distance between the rotating shaft 115 and the driven portion 121 gradually increases. Further, as Figure 10 As shown, in the initial stage of the movement of the toggle member 131, the distance between the rotating shaft 115 and the driven portion 121 is small. The driven portion 121 rotates slightly, and the stop portion 122 rotates more, and the stop portion 122 has a faster effect. This can improve the response speed of the toggle lever device 100, reduce the finger toggle stroke of the medical staff, reduce the difficulty of operation, and improve safety. Figure 11 As shown, in the later stage of the movement of the toggle member 131, the distance between the rotating shaft 115 and the driven portion 121 gradually increases to a maximum value. Based on the rotating shaft 115, the driven portion 121 has a larger moment arm than the stop portion 122, which can maintain the locked state with less force, thereby improving the stability.

[0055] It is understood that the driven portion 121 and the abutting portion 122 can be disposed on opposite sides of the rotating shaft 115. Furthermore, the driven portion 121 and the abutting portion 122 can be disposed on opposite ends of the locking member 120. In another embodiment, the driven portion 121 and the abutting portion 122 can be disposed on the same side of the rotating shaft 115, such as where the driven portion 121 is located between the abutting portion 122 and the rotating shaft 115. This will not be described in detail herein.

[0056] In some other cases, a protrusion is provided on at least one side of the locking member 120, and the protrusion can cooperate with the groove or through hole of the connecting rod 113 to enable the locking member 120 to be rotatable relative to the connecting rod 113, which will not be elaborated here.

[0057] To achieve the above-mentioned and other related purposes, the present application provides an operating handle 300. Figure 1 The operating handle 300 includes the aforementioned lever device 100 and the traction mechanism 200, and the traction mechanism 200 is connected to the lever body 110. In this way, the operating handle 300 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here.

[0058] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 1, please refer to Figure 1The endoscope 1 includes the aforementioned operating handle 300. This enables the endoscope 1 to have the beneficial effects of any of the aforementioned solutions, which will not be described in detail here. The endoscope 1 can be a bronchoscope, pyeloscope, esophagoscope, gastroscope, enteroscope, otoscope, rhinoscope, oral scope, laryngoscope, colposcope, laparoscope, arthroscope, etc. The embodiment of the present application does not specifically limit the type of endoscope 1 or the implementation scenario of the endoscope 1.

[0059] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0060] Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0061] 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 toggle button for an endoscope lever device, wherein the lever body of the toggle device comprises a pivot, a guide rod, and a connecting rod, wherein the pivot is in transmission connection with the traction mechanism of the endoscope, and the connecting rod is connected between the guide rod and the pivot, characterized in that: The dial button includes: a toggle member, the toggle member being sleeved on the guide rod and slidably engaged with the guide rod to switch between an unlocked position and a locked position, the toggle member driving the locking member of the toggle member device during the switching process between the unlocked position and the locked position, thereby switching the toggle member device between an unlocked mode and a locked mode; and a limiting member, the limiting member comprising a limiting body and an elastic member, the limiting body being capable of being locked in a limiting position with the recessed portion, the limiting member being connected to the toggle member, and when the toggle member is in the locked position, the toggle member is locked in a limiting position with the toggle lever body through the limiting member, and when the toggle member is in the unlocked position, the limiting member and the toggle lever body are unlocked; In which, the locking member is rotatably connected to the connecting rod, and the locking member is accommodated in the accommodating space of the connecting rod so that the locking member extends out of the accommodating space and cooperates with the traction mechanism to limit the position. The locking member has a driven part and a stop part, and a rotating shaft is provided in the accommodating space. The driven part and the stop part are both rotatably arranged around the rotating shaft. The driven part is connected to the toggle member, and the locking member is provided with a strip hole, and the rotating shaft is passed through the strip hole.

2. The dial button according to claim 1, characterized in that An installation cavity is provided in the limiting member, and the installation cavity is suitable for passing the shift lever body. The limiting member is provided in the installation cavity so that the limiting member can cooperate with the shift lever body in a limiting manner.

3. The dial button according to claim 2, characterized in that: The movable path of the limiting body intersects with the movable path of the shifting member.

4. A lever device for an endoscope, characterized in that: The lever device comprises: a lever body, the lever body being adapted to be connected to a traction mechanism of the endoscope; The dial button according to any one of claims 1 to 3, wherein the toggle member is movably mounted on the toggle rod body; The locking member is connected to the toggle member. During the switching process between the unlocking position and the locking position, the toggle member drives the locking member of the toggle lever device to switch the toggle lever device between the unlocking mode and the locking mode.

5. The lever device according to claim 4, characterized in that: The shift lever body includes a pivot, a guide rod, and a connecting rod. The pivot is transmission-connected to the traction mechanism. The connecting rod is connected between the guide rod and the pivot. The shift member is sleeved on the guide rod and slidably engaged with the guide rod. The locking member is rotationally connected to the connecting rod, wherein: The pivot, the connecting rod and the guide rod are integrally formed; Alternatively, the pivot is detachably connected to the engagement rod.

6. The lever device according to claim 5, characterized in that: The pivot has a first end and a second end remote from each other, wherein: The second end extends out of the traction mechanism and is connected to the connecting rod; And / or, the connecting rod includes a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are respectively connected to the opposite ends of the guide rod, the first end is connected to the end of the first connecting rod away from the guide rod, and the second end is connected to the end of the second connecting rod away from the guide rod.

7. The lever device according to claim 5, characterized in that: The connecting rod has an accommodating space therein, the locking member is accommodated in the accommodating space, and the toggle member can drive the locking member so that the locking member extends out of the accommodating space and engages with the traction mechanism in a limiting manner; And / or, the lever body further includes a protective cover, and the protective cover is detachably connected to the engagement rod; And / or, the length of the locking member is smaller than the length of the connecting rod.

8. The lever device according to claim 7, characterized in that: The locking member comprises a driven portion and a stop portion, a rotating shaft is provided in the accommodating space, the driven portion and the stop portion are both rotatably arranged around the rotating shaft, and the driven portion is connected to the toggle member; The rotating shaft is movable in the strip-shaped hole, and when the toggle member switches from the unlocking position to the locking position, the distance between the rotating shaft and the driven part gradually increases.

9. An operating handle, characterized in that: include: traction mechanism; as well as The shift lever device according to any one of claims 4 to 8, wherein the shift lever body is connected to the traction mechanism.

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

Images