A locking device for endoscope adjustment and locking device

Abstract

The application provides a locking device for endoscope adjustment. The locking device comprises a first rotating wheel, a first rotating shaft and a brake part. The first rotating wheel is connected to the first end of the first rotating shaft. The first end of the first rotating shaft is provided with a first traction disc. The end surface of the first traction disc is provided with a first annular slot. The brake part is provided with a first brake part which is embedded in the first annular slot of the first traction disc. By adjusting the brake part, the tightness of the first brake part and the first annular slot of the first traction disc can be changed, so as to provide the rotation of the first rotating shaft with the desired damping. The first traction disc rotates with the first rotating shaft. The rotation of the first traction disc is used for adjusting the first traction wire, so as to adjust the observation angle of the endoscope in the first dimension. The locking device for endoscope adjustment can improve the angle flexibility and stability of the endoscope lens during operation.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more particularly to a locking device for endoscope adjustment and the locking device itself. Background Technology

[0002] With the reform of the national medical system, the advancement of medical technology, and the popularization of advanced medical equipment, endoscopic equipment is being used more and more widely in routine medical surgeries.

[0003] Endoscopic devices, as commonly used medical instruments, mainly consist of a traction wire, a flexible part, a light source, and a lens. In practical applications, the endoscope's tip is inserted into the body through a minimally invasive incision. After adjusting the tip to a suitable position, the endoscope is usually fixed at a certain angle. To facilitate observation of lesions, a locking device is installed on the endoscope. This locking device at the rear of the endoscope allows for movement control of the flexible part, thereby adjusting the observation angle of the tip and directly visualizing lesions. The endoscope locking device, as a crucial component in actual surgical procedures, plays a vital role in achieving observation of lesions.

[0004] In existing endoscope locking devices, a rotary wheel is typically used to adjust the lens. However, this method suffers from problems such as insufficient stability, low precision, and inflexible bending angle when manipulating the lens during operation. Therefore, how to provide a locking device for endoscope adjustment that improves the angular flexibility and stability of the endoscope lens during operation has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] This application provides a locking device for endoscope adjustment to solve the problems of insufficient operational stability, low precision, and inflexible bending angle of existing endoscope locking devices. The present invention also provides a locking device.

[0006] According to an embodiment of this application, a locking device for endoscope adjustment is provided, including a first rotating wheel, a first rotating shaft, and a braking element;

[0007] The first rotating wheel is connected to the first end of the first rotating shaft; a first traction disc is provided at the second end of the first rotating shaft, and a first annular groove is provided on the end face of the first traction disc; the braking component has a first braking part embedded in the first annular groove of the first traction disc, and by adjusting the braking component, the tightness of the engagement between the first braking part of the braking component and the first annular groove of the first traction disc can be changed, thereby providing the desired damping for the rotation of the first rotating shaft; the first traction disc rotates with the first rotating shaft, and the rotation of the first traction disc is used to adjust the first traction wire, thereby adjusting the observation angle of the endoscope in the first dimension.

[0008] In one embodiment of this application, a second rotating wheel and a second rotating shaft are included. The second rotating wheel is connected to the first end of the second rotating shaft, and the second rotating shaft and the first rotating shaft are coaxial. A second traction disc is provided at the second end of the second rotating shaft, and a second annular groove is provided on the end face of the second traction disc. The braking member has a second braking part that is embedded in the second annular groove of the second traction disc. Adjusting the braking member can change the tightness of the engagement between the second braking part and the second annular groove of the second traction disc, thereby providing desired damping for the rotation of the second rotating shaft. The rotation of the second traction disc is used to adjust the second traction wire, thereby adjusting the observation angle of the endoscope in a second dimension, which is in a different directional dimension from the first dimension.

[0009] In one embodiment of this application, the braking part of the brake member has a cross-section suitable for embedding in the annular slot; the braking part is connected to a drive shaft, and the drive shaft is rotated by the pull rod of the brake member, so that the braking part can rotate in the annular slot to a position where both ends of the braking part in the length direction are respectively in contact with the upper and lower groove surfaces of the annular slot. By adjusting the angle at which the braking part is in contact in the annular slot, the tightness of the engagement between the braking part and the annular slot of the traction disc can be changed, thereby providing the desired damping for the rotation of the shaft.

[0010] In one embodiment of this application, the cross-section of the braking part has an outwardly protruding bulging arc surface along its length.

[0011] In one embodiment of this application, the braking part is made of an elastic material.

[0012] In one embodiment of this application, the drive shaft passes through the housing of the endoscope, and a bearing is provided at the junction of the housing and the drive shaft to support the rotation of the drive shaft.

[0013] In one embodiment of this application, by adjusting the brake, the tightness of the engagement between the first braking part of the brake and the first annular slot of the first traction disc can be changed, while the tightness of the engagement between the second braking part of the brake and the second annular slot of the second traction disc can also be changed, thereby providing the desired damping for the synchronous rotation of the first shaft and the second shaft.

[0014] In one embodiment of this application, the first braking part and the second braking part are respectively connected to connecting rods, and the two connecting rods are connected by a pull rod, which is used by the user to operate the first braking part and the second braking part.

[0015] This application also provides a locking device, including a first rotating wheel, a first rotating shaft, and a braking element;

[0016] The first rotating wheel is connected to the first end of the first rotating shaft; a first functional disk is provided at the second end of the first rotating shaft, and a first annular groove is provided on the end face of the first functional disk; the braking member has a first braking part embedded in the first annular groove of the first functional disk, and by adjusting the braking member, the tightness of the engagement between the first braking part of the braking member and the first annular groove of the first functional disk can be changed, thereby providing the desired damping for the rotation of the first rotating shaft.

[0017] In one embodiment, the locking device includes a second rotating wheel and a second rotating shaft; the second rotating wheel is connected to a first end of the second rotating shaft, and the second rotating shaft and the first rotating shaft are coaxial; a second functional disk is provided at a second end position of the second rotating shaft, and a second annular groove is provided on the end face of the second functional disk; the braking member has a second braking part that is embedded in the second annular groove of the second functional disk; adjusting the braking member can change the tightness of the engagement between the second braking part and the second annular groove of the second functional disk, thereby providing desired damping for the rotation of the second rotating shaft.

[0018] This invention provides a locking device for adjusting an endoscope. The locking device includes a first rotating wheel, a first rotating shaft, and a braking component. The first rotating wheel is connected to a first end of the first rotating shaft. A first traction disc is disposed near the second end of the first rotating shaft, and a first annular groove is provided on the end face of the first traction disc. The braking component has a first braking portion that is embedded in the first annular groove of the first traction disc. By adjusting the braking component, the tightness of the engagement between the first braking portion of the braking component and the first annular groove of the first traction disc can be changed, thereby providing the desired damping for the rotation of the first rotating shaft. Because the braking component provides the desired damping for the rotation of the first rotating shaft, the rotation angle of the first rotating shaft can be fixed. Thus, the operator can fix the rotation angle of the first rotating shaft by swinging the braking component, thereby obtaining a suitable endoscopic observation angle. This allows for easy bending and fixing of the endoscope at any angle, balancing the flexibility and stability of the endoscope lens angle and improving surgical efficiency. Attached Figure Description

[0019] The above and other objects, features, and advantages of embodiments of this application will become more readily understood through the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the application will be described by way of example and non-limitation, wherein:

[0020] Figure 1 A schematic diagram of a locking device for endoscope adjustment provided in the first embodiment of this application;

[0021] Figure 2 for Figure 1 A schematic diagram of the locking device in its unlocked state;

[0022] Figure 3 for Figure 1 A schematic diagram of the locking device in the middle when it is locked;

[0023] Figure 4 for Figure 1 A schematic diagram of the braking component structure in the locking device;

[0024] Figure 5 for Figure 1 A schematic diagram of the braking part in the locking device;

[0025] Figure 6 for Figure 1 A schematic diagram of the first traction disc structure in the locking device;

[0026] Figure 7 for Figure 6 A schematic diagram of the structure of the first traction disc in the image from another perspective;

[0027] Figure 8 for Figure 1A schematic diagram of the handle structure in the locking device;

[0028] Figure label:

[0029] Reference numerals in the first embodiment:

[0030] 10-Locking device;

[0031] 100 - Rotary wheel assembly; 110 - First rotary wheel assembly; 111 - First rotary wheel; 113 - First rotating shaft; 115 - First traction disc; 1151 - First annular slot; 1153 - First traction disc groove; 1155 - First traction wire; 1157 - First traction hole; 1159 - First traction disc center hole;

[0032] 130 - Second rotating wheel assembly; 131 - Second rotating wheel; 133 - Second rotating shaft; 135 - Second traction disc; 1351 - Second annular slot; 1353 - Second traction disc groove;

[0033] 300 - Braking component; 310 - First braking part; 311 - Outer bulging arc surface; 313 - Cross section; 330 - Drive shaft; 350 - Connecting rod; 370 - Pull rod; 390 - Second braking part;

[0034] 500 - Handle; 510 - Positioning hole;

[0035] Second embodiment partial reference numerals:

[0036] 115' - First function panel; 135' - Second function panel; the rest refer to the reference numerals in the first embodiment; Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0038] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] In related endoscope locking devices, a locking handwheel is typically used to adjust the lens. However, this method suffers from several problems during operation, including insufficient stability, low precision, and inflexible bending angles. Therefore, this application provides a locking device for endoscope adjustment, comprising a first rotating wheel, a first rotating shaft, and a braking component. The first rotating wheel is connected to the first end of the first rotating shaft. A first traction disc is located near the second end of the first rotating shaft, and the end face of the first traction disc has a first annular groove. The braking component has a first braking portion that is embedded in the first annular groove of the first traction disc. By adjusting the braking component, the tightness of the engagement between the first braking portion of the braking component and the first annular groove of the first traction disc can be changed, thereby providing desired damping for the rotation of the first rotating shaft. The first traction disc rotates with the first rotating shaft and is used to adjust a first traction wire, thereby adjusting the observation angle of the endoscope in a first dimension. By adjusting the rotational damping of the first rotating shaft, the first rotating shaft can control the extension and retraction of the first traction wire by the first traction disc under different frictional forces. This allows for the adjustment of the angle and position of the traction wire on the endoscope lens, which is beneficial for the bending and fixing of the distal curved part of the endoscope at any angle. Ultimately, this achieves greater angular flexibility and stability of the endoscope lens during endoscopy, improving operational efficiency.

[0043] The following describes several alternative implementations of this disclosure with reference to the accompanying drawings. Those skilled in the art should understand that the following implementations are merely illustrative and not an exhaustive list. Based on these implementations, those skilled in the art may replace, splice, or combine certain features or examples, and these should still be considered as the disclosure content of this disclosure.

[0044] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 The first embodiment of this application is described in detail.

[0045] like Figure 1 As shown, this embodiment provides a schematic diagram of the locking device 10 for an endoscope; wherein, Figure 1 The diagram shows the locking device 10 in the first, second, and third directions. The first direction is the left-right direction from the drawing's perspective; the second direction is the up-down direction from the drawing's perspective; and the third direction is the front-back direction from the drawing's perspective. In this diagram, the locking mechanism is in an unlocked state.

[0046] like Figure 1 As shown, the locking device 10 includes the following components or parts: a rotary wheel assembly 100; a brake 300; and a handle 500.

[0047] The arrangement of the above-mentioned components can be roughly described as follows: the rotating wheel assembly 100 is arranged through the locking device 10 in the third direction (front-to-back direction). Figure 1 The locking device 10 is located on the lower left and upper right sides, and includes a rotating wheel, a rotating shaft, and a traction disc. The rotating wheel is connected to the first end of the rotating shaft, and the traction disc is provided at the second end of the rotating shaft opposite to the first end. The rotating wheel assembly 100 provides a user with an operating method for controlling the locking device 10. The braking element 300 is located at the upper end of the locking device 10 in the second direction (vertical direction). The braking element 300 includes a pull rod and a braking part. The pull rod for braking is located outside the housing of the handle 500. The braking of the braking element 300... The brake 300 is embedded in an annular groove on the end face of the traction disc of the rotary wheel assembly 100; the brake 300 provides the user with an operating method to control the tightness of the rotary wheel assembly 100 during adjustment; the user operates the brake 300 by pulling the lever, which changes the tightness of the engagement between the brake part of the brake 300 and the annular groove of the traction disc of the rotary wheel assembly 100, thereby providing the desired damping for the rotation of the rotary wheel assembly 100, so that the operator can stably keep the traction disc at the required angle position as needed.

[0048] In this embodiment, the handle 500 actually serves as the assembly base for the locking device 10, providing positioning for other components, and can also be referred to as the body. The reason why the handle 500 is called a handle is that it functions as a handle in the overall structure of the endoscope, and its specific structure will be described later.

[0049] In a specific implementation of this embodiment, the rotating wheel assembly 100 includes: a first rotating wheel assembly 110; and a second rotating wheel assembly 130.

[0050] The following is a detailed introduction to each component.

[0051] The wheel assembly 100 includes a first wheel assembly 110 and a second wheel assembly 130; the first wheel assembly 110 includes a first wheel 111, a first shaft 113, and a first traction disc 115; the second wheel assembly 130 includes a second wheel 131, a second shaft 133, and a second traction disc 135.

[0052] The first rotating wheel 111 is connected to the first end of the first rotating shaft 113 along a third direction (front-back direction). Figure 1 The upper right corner serves as an operating handle mounted on the first rotating shaft 113; the first traction disc 115 is positioned at the second end of the first rotating shaft 113 opposite to the first end, i.e., the third directional front end of the first rotating shaft 113. Figure 1(Lower left); the second rotating wheel 131 is connected to the first end of the second rotating shaft 133 ( Figure 1 (Upper right) and the second rotating shaft 133 and the first rotating shaft 113 are coaxial. In this embodiment, as the most likely arrangement, the coaxiality is achieved by the second rotating shaft 133 being sleeved on the outer circumferential surface of the first rotating shaft 113; the second traction disc 135 is located at the second end (third-direction front end) of the second rotating shaft 133. As can be seen from the figure, the second traction disc 135 is located at a position closer to the first end than the first traction disc 115. In addition, the first rotating wheel 111 is located at the first end (the second rotating wheel 131) closer to the first end. Figure 1 In one possible arrangement (located at the upper right), the first rotating wheel 111 can have a boss extending towards the front third, while the second rotating wheel 131 has a corresponding groove, allowing the boss to fit into the groove, thereby shortening the axial installation dimensions of the first rotating wheel 111 and the second rotating wheel 131. Of course, the coaxial arrangement of the first rotating shaft 113 and the second rotating shaft 133 can also be achieved in other ways, such as arranging them opposite each other from both ends. If this arrangement is adopted, the overall layout of the locking mechanism will be significantly different from that of this embodiment, but the principle remains essentially the same.

[0053] Please see Figure 6 The first traction disc 115 has a fixed position for the first traction wire 1155. By rotating the first traction disc 115, the extension distance of the first traction wire 1155 can be adjusted. The first traction wire 1155 can also pull the endoscope lens, so that the endoscope is at a suitable angle in the dimension controlled by the first traction wire 1155.

[0054] Figure 6 A structural diagram of the first traction disc 115 is shown. The diagram also shows a first rotating shaft 113 connected to the first traction disc 115. The following is combined with... Figure 6 and Figure 7 For a detailed description of the specific structure of the first traction disc 115, please refer to [reference needed]. Figure 1 .

[0055] Figure 6 As shown, the first traction disc 115 includes: a first annular groove 1151; a first traction disc groove 1153; a first traction wire 1155; a first traction hole 1157; and a first traction disc center hole 1159.

[0056] Combination Figure 6 and 7As shown in the diagram, the first traction disc 115 has a hollow disc structure, and the first annular groove 1151 is located on the outer end face of the first traction disc 115, so that the braking part of the braking component 300 can be embedded in the first annular groove 1151. The first annular groove 1151 has upper and lower groove surfaces.

[0057] The first traction disc groove 1153 is located on the outer circumferential surface of the first traction disc 115. The first traction wire 1155 enters the first traction disc 115 through the first traction disc groove 1153. The circumferential surface of the first traction disc 115 is provided with symmetrical bidirectional first traction holes 1157. The symmetrical first traction holes 1157 are used for the intake and release of the first traction wire 1155. The center position of the first traction disc 115 is provided with a first traction disc center hole 1159, which is fitted and fixed with the first rotating shaft 113. Through this structure, the first traction disc 115 is installed at the second end of the first rotating shaft 113.

[0058] One end of the first traction wire 1155 is fixed to the first traction disc 115 and can be inserted into the groove 1153 of the first traction disc. By rotating the first traction disc 115, the extension and retraction of the first traction wire 1155 can be adjusted, thereby adjusting the observation angle of the endoscope in the first dimension. Specifically, the rotation of the first traction disc 115 can control the winding and retraction of the first traction wire 1155 in the first dimension, thereby adjusting its extension distance. As a possible arrangement, in this embodiment, the first traction wire 1155 consists of two traction lines. The observation angle in the first dimension is in the vertical direction, and the two traction lines of the first traction wire 1155 each independently control the observation angle of the endoscope in the vertical direction. In this embodiment, the composition and control dimension of the first traction wire described above are only an illustration, and other possible compositions and control methods for the traction wire are not excluded.

[0059] Similar to the first traction disc, the second traction disc 135 has a similar structure, the difference being that it is positioned near the second end of the second rotating shaft 133. This second traction disc 135 is used to fix the second traction wire, and the composition of the second traction wire is similar to that of the first traction wire. By rotating the second traction disc 135, the extension and retraction of the second traction wire can be adjusted, thereby adjusting the observation angle of the endoscope in the second dimension, for example, the observation angle of the endoscope in the left-right direction. Specifically, the rotation of the second traction disc 135 can control the winding and retraction of the second traction wire in the second dimension, thereby adjusting its extension distance.

[0060] The first traction wire 1155 is embedded in the endoscope's catheter, with its two ends positioned at the curved end and the traction disc end of the endoscope catheter, respectively. Generally, after one end of a traction wire is pulled by the traction disc, due to the flexibility of the catheter, the traction wire drives the rotation of the flexible part at the distal end of the catheter, thereby causing the endoscope lens to rotate in a certain dimension (up and down, or left and right), so that the endoscope lens can be deflected at a certain angle and the viewing angle can be changed.

[0061] The following describes the brake component 300 and the handle 500. Corresponding to the above embodiment with the first rotating wheel assembly 110 and the second rotating wheel assembly 130, the brake component 300 includes a first brake part 310 and a second brake part 390 arranged symmetrically. The following describes the brake component 300 with the relevant structure of the first brake part 310 as an example. The second brake part 390 is symmetrically arranged with the first brake part 310 and has the same structure, so it will not be described again.

[0062] The first braking unit 310 includes the following related structures: a first braking unit 310, a drive shaft 330, a connecting rod 350, and a pull rod 370 (shared with the second braking unit 390); to more clearly describe the structure of the braking unit, Figure 5 The outer bulging arc surface 311 and cross section 313 of the first braking part 310 are also marked. Since the braking element 300 and the handle 500 have an interlocking connection, the detailed description of the structure of the braking element 300 will continue after the structure of the handle 500 is introduced below.

[0063] Please refer to the handle 500. Figure 8 The handle 500, named as such, serves as the handle of an endoscope. In this application, it essentially provides the positioning base for the body. The handle 500 is generally designed as two interlocking covers that can be disassembled for assembly and repair needs; these covers can be referred to as the body housing. For the endoscope locking mechanism of this application, the handle 500 primarily provides a positioning hole 510 for the drive shaft 330 of the brake 300. In this embodiment, the handle 500 is a hollow cylindrical shell made of plastic. The positioning hole 510 penetrates the body housing of the handle 500, providing an installation position for the brake 300. In this embodiment, the drive shaft 330 of the brake 300 passes through the positioning hole 510 of the handle 500. The handle 500 provides a rotatable mounting position for the brake 300 in the positioning hole 510. Preferably, a bearing supporting the rotation of the drive shaft 330 can be provided at the location where the drive shaft 330 engages with the body housing in the positioning hole 510.

[0064] Figure 4 A structural diagram of the brake element 300 is shown below. (The following is in conjunction with...) Figure 4 The braking component 300 is described in detail below, and please also refer to [the relevant documentation / reference]. Figure 1 , Figure 2 .

[0065] As mentioned above, the braking component 300 includes a first braking part 310 and a second braking part 390; the following focuses on the part related to the first braking part 310 and incidentally describes the second braking part 390 which is symmetrically arranged with the first braking part 310.

[0066] The first braking part 310 has a cross-section 313 capable of embedding into the first annular slot 1151. To embed into the first annular slot 1151, the cross-section 313 needs to be appropriately sized in width and length, making it elongated and flat, so that it can enter the annular slot 1151 at a certain angle without interference. Furthermore, it can rotate within the first annular slot 1151 to a suitable position, abutting against and conforming to the upper and lower groove surfaces of the first annular slot 1151, thereby applying a damping force to the rotation of the first traction disc 115. Correspondingly, the second braking part 390 has a cross-section capable of embedding into the second annular slot 1351. The braking component 300 has a pull rod 370 for the user to operate the first braking part 310 and the second braking part 390. Connecting rods 350 are connected to both ends of the pull rod 370. The connecting rods 350 are located on the outside of the handle 500, and their lower ends are connected to a drive shaft 330 passing through a positioning hole 510 in the handle 500. The drive shaft 330 is connected to the first braking part 310. The drive shaft 330 and the positioning hole 510 are rotatably pivotally connected. Thus, by operating the pull rod 370, the drive shaft 330 can rotate in the positioning hole 510, thereby causing the first braking part 310 to rotate in the first annular slot 1151. Since the first braking part 310 and the second braking part 390 are symmetrically arranged in this specific implementation, the first braking part 330 and the second braking part 390 rotate simultaneously. In this way, the first braking part 310 and the second braking part 390 rotate within the first annular slot 1151 and the second annular slot 1351, respectively, so that the two ends of the first braking part 310 and the second braking part 390 in the length direction rotate to a position that is in contact with the upper and lower groove surfaces of the first annular slot 1151 and the second annular slot 1351. By adjusting the force applied to the pull rod 370, the contact angle between the first braking part 310 and the first annular slot 1151 and the second braking part 390 and the second annular slot 1351 changes, thereby changing the tightness of the engagement between the first braking part 310 and the second braking part 390 and the first annular slot 1151 and the second annular slot 1351 of each traction disc, thus providing the desired damping for the rotation of the first rotating shaft 113 and the second rotating shaft 133.

[0067] The above-described specific implementation method, as a feasible approach in this embodiment, can synchronously adjust the force applied to the first braking part 310 and the second braking part 390, thereby achieving the same damping provided synchronously for the rotation of the first rotating shaft 113 and the second rotating shaft 133, so that the rotation of the first rotating shaft 113 and the second rotating shaft 133 is braked together, thus ensuring the synchronous adjustment of the endoscope's observation angle in the first and second dimensions.

[0068] As another feasible approach in this embodiment, the force applied to the first braking part 310 and the second braking part 390 can be adjusted individually to provide different damping for the rotation of the first rotating shaft 113 and the second rotating shaft 133. In this implementation, the pull rod 370 can be divided into two, respectively corresponding to the first braking part 310 and the second braking part 390. In this way, by adjusting the corresponding pull rods, the rotation of the first rotating shaft 113 and the second rotating shaft 133 can be braked individually, thereby ensuring that the endoscope can independently adjust the observation angle in another dimension when the observation angle in one dimension is determined.

[0069] The braking unit 310 described above will be described in detail below.

[0070] Figure 5 The diagram shows the structure of the first braking part 310, which is a component of the braking member 300. In this embodiment, the structure of the first braking part 310 is similar to that of the second braking part 390. Therefore, the structure of the second braking part 390 is referred to that of the first braking part 310. Figure 5 The diagram also shows the brake element 300 and drive shaft 330 corresponding to the first brake unit 310. The following is a combination of... Figure 5 For a detailed description of the specific structure of the first braking unit 310, please refer to [reference needed]. Figure 1 .

[0071] like Figure 5 As shown, the first braking part 310 has an outwardly protruding convex arc surface 311 along its length direction. The convex arc surface 311 allows the first braking part 310 to naturally conform and abut against the upper and lower groove surfaces of the first annular groove 1151, avoiding damage to the upper and lower groove surfaces. Figure 5The first braking part 310 shown has a cross-section 313 that is an elongated strip structure with bulging sides. The other end opposite to the cross-section 313 marked by the elongated strip structure is connected to the drive shaft 330. Similarly, to avoid scratching the upper and lower groove surfaces by the braking part abutting against them, the first braking part 310 can be made of an elastic material. For example, in this embodiment, as a feasible approach, the first braking part 310 is made of a rubber material with a certain hardness.

[0072] As another feasible embodiment of the first braking part 310, the first braking part 310 also has an outwardly protruding convex arc surface 311. The convex arc surface 311 is used for the first braking part 310 to fit more naturally against the upper and lower groove surfaces of the first annular groove 1151, avoiding damage to the upper and lower groove surfaces. The first braking part 310 has an elliptical cross-section 313, and the other end opposite to the end face 313 marked by the elliptical structure is connected to the drive shaft 330. Similarly, to avoid scratching the upper and lower groove surfaces when the braking part abuts against them, the first braking part 310 can be made of an elastic material. For example, in this embodiment, as a feasible method, the first braking part 310 is made of spring steel.

[0073] When the endoscope is working, as a feasible method, by moving the lever 370, the drive shaft 330 can be rotated, thereby causing the first braking part 310 and the second braking part 390 to rotate in the first annular slot 1151 and the second annular slot 1351, respectively, to a position where the two ends of the outer bulging arc surface 311 of the braking part are in contact with the upper and lower groove surfaces of the first annular slot 1151 and the second annular slot 1351, respectively. By adjusting the force applied to the first braking part 310 and the second braking part 390, the tightness of the engagement between the first braking part 310 of the braking member 300 and the first annular slot 1151 of the first traction disc 115 can be changed, and at the same time, the tightness of the engagement between the second braking part 390 and the second annular slot 1351 of the second traction disc 135 can be changed, thereby providing the desired damping for the rotation of the first rotating shaft 113 and the second rotating shaft 133. Generally, the locking device 10 may have an unlocked state and a locked state, and may provide different degrees of damping in the middle of the two states.

[0074] The following are key references Figure 2 , Figure 3 The working process of the locking device 10 is described in detail.

[0075] Figure 2 It shows Figure 1 A schematic diagram of the locking device 10 in the unlocked state. Figure 3 It shows Figure 1 A schematic diagram of the locking device 10 in the locked state. See below for reference. Figures 1 to 3 This section briefly describes the working process of the locking device 10, focusing on the operation process of switching between the locked and unlocked states.

[0076] like Figure 2 In the enlarged view of the locking device 10 shown, the outer bulging arc surface 311 of the first braking part 310 does not fit with the upper and lower groove surfaces of the first annular groove 1151, and the locking device 10 is in an unlocked state. When it is necessary to lock the endoscope locking device 10, the lever 370 is rotated clockwise along the handle 500 by a certain angle (e.g., Figure 2 (As shown from position A to position B), the pull rod 370 drives the drive shaft 330 to rotate around the handle 500, causing the first braking part 310 and the second braking part 390 to rotate within the first annular slot 1151 and the second annular slot 1351 to a position where the two ends of the outer bulging arc surface 311 of the braking part are respectively in contact with the upper and lower groove surfaces of the first annular slot 1151 and the second annular slot 1351. By increasing the force applied to the first braking part 310 and the second braking part 390, the first braking part 310 of the braking member 300 can be engaged with the first traction rod 500. As the tightness of the first annular slot 1151 of the guide plate 115 increases, the frictional force provided to the rotation of the first rotating shaft 113 and the second rotating shaft 133 increases. Under the influence of this frictional force, the damping of the rotation of the first rotating shaft 113 and the second rotating shaft 133 gradually increases until they can no longer rotate. Finally, the first traction plate 115 and the second traction plate 135 are locked by friction at their current rotational positions, and the locking device enters a locked state. The traction length of the traction wire associated with the traction plate in the vertical and horizontal directions within the endoscope guide tube is fixed, thus achieving endoscope lens angle locking. Please refer to... Figure 2 , Figure 3 The above process is Figure 2 Change to Figure 3 From this perspective, the second traction disc 135 is obscured, but the actual changes are consistent.

[0077] like Figure 3 The locking device 10 shown has its outer convex arc surface 311 of the first braking part 310 in contact with the upper and lower groove surfaces of the first annular slot 1151, and the locking device 10 is in a locked state. In this view, the contact between the outer convex arc surface 311 and the upper and lower groove surfaces of the first annular slot 1151 is not visible. When it is necessary to unlock the endoscope locking device 10, the lever 370 is rotated counterclockwise along the handle 500 by a certain angle (e.g., ...). Figure 3(As shown from position B to position A), the pull rod 370 drives the drive shaft 330 to rotate around the handle 500, causing the first braking part 310 and the second braking part 390 to rotate within the first annular slot 1151 and the second annular slot 1351 to a position where the two ends of the outer bulging arc surface 311 of the braking part in the length direction are separated from the upper and lower groove surfaces of the first annular slot 1151 and the second annular slot 1351, respectively (e.g., from position B to position A). Figure 2 As shown in the enlarged view, by gradually reducing and eventually eliminating the force applied to the first braking part 310 and the second braking part 390, the tightness of the engagement between the first braking part 310 of the braking member 300 and the first annular slot 1151 of the first traction disc 115 is reduced. This, in turn, gradually reduces and eventually eliminates the frictional force on the rotation of the first rotating shaft 113 and the second rotating shaft 133. The locking device disengages from the locked state and enters the unlocked state. The first traction disc 115 and the second traction disc 135 can then rotate flexibly with the operator's manipulation of the first rotating wheel 111 and the second rotating wheel 131. The traction wire associated with the traction discs can be flexibly wound and unwound under the traction of the traction discs, thereby allowing for flexible adjustment of the endoscope lens angle. Please refer to... Figure 2 , Figure 3 The above process is from Figure 3 Change to Figure 2 From this perspective, the second traction disc 135 is obscured, but the actual changes are consistent.

[0078] Between the locked and unlocked positions, the locking device 10 can be in different damping states by adjusting the force applied to the first braking part 310 and the second braking part 390, thereby obtaining different tightness of the adjustment wheel according to the need of rotating the wheel. With this locking device, the endoscope can be set to a suitable state as needed when adjusting it. When unlocked, the endoscope lens angle can be freely adjusted by rotating the wheel. When locked, the endoscope is fixed in a fixed state and the lens angle will not change. If it is in the damping state between the two, it will provide the operator with the desired feel for turning the wheel, thus making it easy to operate.

[0079] The principle of the above embodiment is briefly explained below. The combination of the brake member 300 and the rotating wheel assembly 100 forms a lever mechanism. Since the connecting rod 350 of some components of the brake member 300 is relatively long, which is equivalent to the long arm end of the lever, the braking of each rotating shaft can be easily achieved by adjusting the force applied to the drive shaft 330 fixedly connected to the brake part. Conversely, it is difficult for the rotating wheel assembly 100 to drive the drive shaft 330 to rotate when it swings. Therefore, the brake member 300 is difficult to move due to loosening. In other words, the above locking mechanism has good locking characteristics and will not easily loosen.

[0080] The first embodiment described above is a preferred embodiment, and obviously, other variations are possible based on its basic principle. For example, the rotary wheel assembly 100 includes a first rotary wheel assembly, meaning the locking mechanism can only adjust the endoscope angle in one dimension. Of course, there are other possible variations. For example, the first rotary wheel 111 and the second rotary wheel 131, as mentioned above, are in opposite positions, rather than being at the same end as in this embodiment.

[0081] The second embodiment of this application provides a locking device; the following is combined with... Figures 1-8 The structure and working process are described. In this embodiment, components with the same function as those in the first embodiment are named in the same way as possible for ease of understanding; however, although the first and second embodiments share common innovations, there are still significant differences. Therefore, the description of this embodiment shall be based on the naming provided in this embodiment, and there is no need to force a correspondence with the first embodiment.

[0082] The locking device 10 ， Typically used in detection scenarios, and referring to the process described in Embodiment 1, the first traction disc 115 and the second traction disc 135 in the rotating wheel assembly 100 are replaced with a first functional disc 115' and a second functional disc 135' to realize various possible adjustment functions. It should be understood that the structure of the first functional disc 115' and the second functional disc 135' can be adjusted according to the locking device 10. ， The functionality and application scenarios require structural adjustments. This embodiment does not impose specific limitations.

[0083] The locking device 10 ， It includes: a first rotating wheel 111, a first rotating shaft 113, and a brake component 300.

[0084] The first rotating wheel 111 is connected to the first end of the first rotating shaft 113; the first rotating shaft 113 is provided with a first functional disk 115' near its second end; the first functional disk 115' has a first annular groove 1151 on its end face; the brake member 300 has a first braking part 310 embedded in the first annular groove 1151 of the first functional disk 115'. By adjusting the brake member 300, the tightness of the engagement between the first braking part 310 of the brake member 300 and the first annular groove 1151 of the first traction disk 115 can be changed, thereby providing the desired damping for the rotation of the first rotating shaft 113.

[0085] Optionally, the locking device 10 ，It also includes: a second rotating wheel 131 and a second rotating shaft 133; the second rotating wheel 131 is connected to the first end of the second rotating shaft 133, and the second rotating shaft 133 and the first rotating shaft 113 are coaxial; a second functional disk 135' is provided at the second end of the second rotating shaft 133, and a second annular groove 1351 is provided on the end face of the second functional disk 135'; the braking member 300 has a second braking part 390 that is embedded in the second annular groove 1351 of the second functional disk 135'; adjusting the braking member 300 can change the tightness of the engagement between the second braking part 390 and the second annular groove 1351 of the second functional disk 135', thereby providing the desired damping for the rotation of the second rotating shaft 133.

[0086] Using the locking device 10 provided in the second embodiment described above ， It may also include other necessary structures, such as detection equipment and display equipment for use with the locking device.

[0087] It should be understood that the working process of the locking device in this embodiment is similar to that in Embodiment 1. Please refer to Embodiment 1. This embodiment will not be described in detail.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A locking device for adjusting an endoscope, characterized in that, It includes a first rotating wheel, a first rotating shaft, and a braking component; The first rotating wheel is connected to the first end of the first rotating shaft; a first traction disc is provided at the second end of the first rotating shaft, and a first annular groove is provided on the end face of the first traction disc; the braking component has a first braking part that is embedded in the first annular groove of the first traction disc; The first braking part has a cross-section suitable for embedding in the first annular slot; the first braking part is connected to a drive shaft, and the drive shaft is rotated by the pull rod of the braking member, so that the first braking part can rotate in the first annular slot to a position where both ends of the first braking part in the length direction are respectively in contact with the upper and lower groove surfaces of the first annular slot; by adjusting the angle of contact of the first braking part in the first annular slot, the tightness of the engagement between the first braking part and the first annular slot of the first traction disc can be changed, thereby providing the desired damping for the rotation of the first rotating shaft; the cross-section of the first braking part has an outwardly protruding bulging arc surface in the length direction. The first traction disc rotates with the first rotating shaft. The rotation of the first traction disc is used to adjust the first traction wire, thereby adjusting the observation angle of the endoscope in the first dimension.

2. The locking device for endoscope adjustment according to claim 1, characterized in that, It includes a second rotating wheel and a second rotating shaft; the second rotating wheel is connected to the first end of the second rotating shaft, and the second rotating shaft and the first rotating shaft are coaxial; a second traction disc is provided at the second end of the second rotating shaft, and a second annular groove is provided on the end face of the second traction disc; the braking component has a second braking part that is embedded in the second annular groove of the second traction disc. The second braking part has a cross-section suitable for embedding in the second annular slot; the second braking part is connected to a drive shaft, and the drive shaft is rotated by the pull rod of the brake member, so that the second braking part can rotate in the second annular slot to a position where the two ends of the second braking part in the length direction are respectively in contact with the upper and lower groove surfaces of the second annular slot. By adjusting the angle of contact of the second braking part in the second annular slot, the tightness of the engagement between the second braking part and the second annular slot of the second traction disc can be changed, thereby providing the desired damping for the rotation of the second rotating shaft; the cross-section of the second braking part has an outwardly protruding bulging arc surface in the length direction; The rotation of the second traction disc is used to adjust the second traction wire, thereby adjusting the observation angle of the endoscope in the second dimension, which is in a different directional dimension from the first dimension.

3. The locking device for endoscope adjustment according to claim 1, characterized in that, The first braking part is made of elastic material.

4. The locking device for endoscope adjustment according to claim 1, characterized in that, The drive shaft passes through the housing of the endoscope, and a bearing is provided at the junction of the housing and the drive shaft to support the rotation of the drive shaft.

5. The locking device for endoscope adjustment according to claim 2, characterized in that, By adjusting the brake, the tightness of the engagement between the first braking part of the brake and the first annular slot of the first traction disc can be changed, while the tightness of the engagement between the second braking part of the brake and the second annular slot of the second traction disc can also be changed, thereby providing the desired damping for the synchronous rotation of the first shaft and the second shaft.

6. The locking device for endoscope adjustment according to claim 2, characterized in that, The first braking part and the second braking part are respectively connected to connecting rods, and the two connecting rods are connected by a pull rod, which is used by the user to operate the first braking part and the second braking part.

7. A locking device, characterized in that, It includes a first rotating wheel, a first rotating shaft, and a braking component; The first rotating wheel is connected to the first end of the first rotating shaft; a first functional disk is provided at the second end of the first rotating shaft, and a first annular groove is provided on the end face of the first functional disk; The braking component has a first braking portion embedded in a first annular slot of the first functional disk; The first braking part has a cross-section suitable for embedding in the first annular slot; the first braking part is connected to a drive shaft, and the drive shaft is rotated by the pull rod of the braking member, so that the first braking part can rotate in the first annular slot to a position where the two ends of the first braking part in the length direction are respectively in contact with the upper and lower groove surfaces of the first annular slot. By adjusting the angle of contact of the first braking part in the first annular slot, the tightness of the engagement between the first braking part and the first annular slot of the first functional disk can be changed, thereby providing the desired damping for the rotation of the first rotating shaft; the cross-section of the first braking part has an outwardly protruding bulging arc surface in the length direction.

8. The locking device according to claim 7, characterized in that, It includes a second rotating wheel and a second rotating shaft; the second rotating wheel is connected to the first end of the second rotating shaft, and the second rotating shaft and the first rotating shaft are coaxial; a second functional disk is provided at the second end of the second rotating shaft, and a second annular groove is provided on the end face of the second functional disk; the braking member has a second braking part that is embedded in the second annular groove of the second functional disk. The second braking part has a cross-section suitable for embedding in the second annular slot; the second braking part is connected to a drive shaft, and the drive shaft is rotated by the pull rod of the brake member, so that the second braking part can rotate in the second annular slot to a position where the two ends of the second braking part in the length direction are respectively in contact with the upper and lower groove surfaces of the second annular slot. By adjusting the angle of contact of the second braking part in the second annular slot, the tightness of the engagement between the second braking part and the second annular slot of the second functional disk can be changed, thereby providing the desired damping for the rotation of the second rotating shaft; the cross-section of the second braking part has an outwardly protruding bulging arc surface in the length direction.

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