A locking device for endoscope adjustment and a locking device

Abstract

The application provides a locking device for endoscope adjustment, a first rotating wheel of the locking device is connected to a first end of a first rotating shaft; a first traction disc is arranged at a second end position of the first rotating shaft; a first brake groove is arranged on the first traction disc at a combined part of the first rotating shaft; the brake part has a first brake head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and a brake handle connected to the first brake head; the rotation angle of the first brake head can be controlled through the brake handle; a brake clutch mechanism is arranged between the first brake head and the first brake groove; the first brake head is rotated to different angles on the first rotating shaft, the brake clutch mechanism can apply or not apply a tensioning force to the inner diameter surface of the first brake groove, and different tensioning forces are applied, so that the desired damping is provided for the rotation of the first rotating shaft. The application can improve the angle flexibility and stability of the operation of the endoscope lens.

Description

Technical Field

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

[0002] With the development of modern medical technology, the advancement of medical techniques, 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 locking handwheel 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 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 structures. This application also provides a locking device.

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

[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; a first braking groove is provided on the first traction disc at the joint with the first rotating shaft;

[0008] The braking unit has a first brake head sleeved on the first rotating shaft and rotatable around the first rotating shaft, and a brake handle connected to the first brake head and extending radially; the rotation angle of the first brake head on the first rotating shaft can be controlled by the brake handle.

[0009] A brake clutch mechanism is provided between the first brake head and the first brake groove; when the first brake head rotates to different angles on the first rotating shaft, the brake clutch mechanism can apply or not apply tension force to the inner diameter surface of the first brake groove, and apply different tension forces, thereby providing the desired damping for the rotation of 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.

[0010] In one possible implementation, the brake clutch mechanism is an isolation plate fixed to the housing of the locking device. The isolation plate is disposed opposite to the end face of the first brake groove on the first traction disc. At least one cantilever beam-shaped spring plate extending from the end face of the isolation plate as a tensioning plate is disposed on the end face of the isolation plate opposite to the first traction disc. The tensioning plate extends into the first brake groove, so that the outer peripheral surface of the tensioning plate is close to the inner diameter surface of the first brake groove. By radially pressing the tensioning plate, the tensioning plate can be radially expanded, so that the outer diameter surface of the tensioning plate fits the inner diameter surface of the first brake groove, thereby applying tension force to the inner diameter surface of the first brake groove. By different degrees of compression, the tightness of the fit between the tensioning plate and the inner diameter surface of the first brake groove can be adjusted, thereby applying different tension forces to the inner diameter surface of the first brake groove.

[0011] In one possible implementation, a pressing boss that cooperates with the tensioning plate is provided on the outer peripheral surface of the first brake head. The first brake head rotates to different angles on the first rotating shaft, so that the pressing boss is in different angular positions on the circumference, so that the pressing boss and the tensioning plate are in a position of contact or separation, and in different degrees of contact, thereby realizing the radial compression of the tensioning plate and obtaining the different degrees of compression.

[0012] In one possible implementation, the tensioning plate has a different inner diameter along the circumferential direction, so that different degrees of compression can be obtained at different contact positions when the extrusion boss is in contact with the tensioning plate.

[0013] In one possible implementation, the tensioning plates are provided in multiple locations and are arranged around the circumferential surface of the first brake head in correspondence with the first brake head; the multiple tensioning plates are evenly or unevenly arranged on the circumference.

[0014] In one possible implementation, the isolation plate is sleeved on the first rotating shaft with a set gap between it and the first rotating shaft. Furthermore, an arc-shaped through hole extending upward around a set arc is provided on the outer peripheral surface of the isolation plate. The brake handle of the braking unit passes through the arc-shaped through hole of the brake clutch mechanism and extends radially. The arc-shaped through hole provides space for the swing of the brake handle and limits its range of motion. The swing of the brake handle drives the first brake head to rotate, thereby causing the first brake head to rotate to different angles on the first rotating shaft.

[0015] In one possible implementation, the locking device further includes: a second rotating wheel and a second rotating shaft;

[0016] The second rotating wheel is connected to the first end of the second rotating shaft, and the first and second rotating shafts are coaxial. The second rotating shaft is sleeved on the outer circumferential surface of the first rotating shaft. A second traction disc is provided at the second end of the second rotating shaft. A second braking groove is provided at the joint of the second traction disc with the first rotating shaft. When the braking clutch mechanism applies tension to the inner diameter surface of the first braking groove, it can apply tension to the inner diameter surface of the second braking groove, thereby providing the 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 the second dimension, which is in a different directional dimension from the first dimension.

[0017] In one possible implementation, the first braking groove and the second braking groove are respectively disposed on the opposite end faces of the first traction disc and the second traction disc.

[0018] This application also provides a locking device, including a first rotating wheel, a first rotating shaft, and a braking part;

[0019] 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; a first braking groove is provided at the joint of the first functional disk with the first rotating shaft;

[0020] The braking unit has a first brake head sleeved on the first rotating shaft and rotatable around the first rotating shaft, and a brake handle connected to the first brake head and extending radially; the rotation angle of the first brake head on the first rotating shaft can be controlled by the brake handle.

[0021] A brake clutch mechanism is provided between the first brake head and the first brake groove; when the first brake head rotates to different angles on the first rotating shaft, the brake clutch mechanism can apply or not apply tension force to the inner diameter surface of the first brake groove, and apply different tension forces, thereby providing the desired damping for the rotation of the first rotating shaft.

[0022] This invention provides a locking device for endoscope adjustment, comprising a first rotating wheel, a first rotating shaft, and a braking part; the first rotating wheel is connected to a first end of the first rotating shaft; a first traction disc is disposed at a second end of the first rotating shaft; a first braking groove is disposed on the first traction disc at the engagement portion with the first rotating shaft; the braking part has a first braking head sleeved on the first rotating shaft and rotatable around the first rotating shaft, and a braking handle connected to the first braking head and extending radially; the rotation angle of the first braking head on the first rotating shaft can be controlled by the braking handle; a braking clutch mechanism is disposed between the first braking head and the first braking groove; when the first braking head rotates to different angles on the first rotating shaft, the braking clutch mechanism can apply or not apply tension force to the inner diameter surface of the first braking groove, and apply different tension forces, thereby providing the desired damping for the rotation of the first rotating shaft; since the braking part can provide controllable damping for the rotation of the first rotating shaft, the bending and fixing of the distal curved part of the endoscope at any angle can be achieved when the locking device is working, ultimately realizing the angular flexibility and stability of the endoscope lens during endoscope operation, and improving the efficiency of surgery. Attached Figure Description

[0023] 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:

[0024] Figure 1 A cross-sectional structural schematic diagram of a locking device for endoscope adjustment provided in the first embodiment of this application;

[0025] Figure 2 for Figure 1 A schematic diagram of the locking device from another perspective;

[0026] Figure 3 for Figure 1 A schematic diagram of the locking device in its unlocked state;

[0027] Figure 4 for Figure 1 A schematic diagram of the brake clutch mechanism in the locking device;

[0028] Figure 5 for Figure 1 A schematic diagram of the braking component in the locking device;

[0029] Figure 6 for Figure 1 A schematic diagram of the structure of the first traction disc in the locking device;

[0030] Figure label:

[0031] Reference numerals in the first embodiment:

[0032] 10-Locking device;

[0033] 100 - Rotating wheel assembly; 110 - First rotating wheel assembly; 111 - First rotating wheel; 113 - First rotating shaft; 115 - First traction disc; 1151 - First traction disc groove; 1153 - First traction wire; 1155 - First traction hole; 1157 - First traction disc center hole; 1159 - First brake groove; 11591 - Inner diameter surface of the first brake groove;

[0034] 130 - Second wheel assembly; 131 - Second wheel; 133 - Second shaft; 135 - Second traction disc; 1351 - Second traction disc groove; 1359 - Second brake groove; 13591 - Inner diameter surface of second brake groove;

[0035] 300 - Braking part; 310 - First brake head; 311 - Extrusion boss; 3111 - First extrusion boss; 3113 - Second extrusion boss; 313 - Center hole of brake head; 330 - Brake handle;

[0036] 350 - Brake and clutch mechanism; 351 - Brake and clutch mechanism body (isolation plate); 353 - Tensioner plate; 3531 - Tensioner plate part one; 3533 - Tensioner plate part two; 355 - Brake and clutch mechanism center hole; 357 - Positioning hole; 359 - Arc-shaped through hole;

[0037] Second embodiment partial reference numerals:

[0038] 115' - First function panel; 135' - Second function panel; the rest refer to the reference numerals in the first embodiment. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] In related endoscope locking structures, 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 unit. 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. A first braking groove is provided on the traction disc at its engagement point with the first rotating shaft. The braking unit has a first braking head sleeved on the first rotating shaft and rotatable around it, and a brake handle connected to the first brake head and extending radially. The brake handle allows control of the rotation angle of the first brake head on the first rotating shaft. A brake clutch mechanism is provided between the first brake head and the first brake groove. The brake clutch can be used to engage the first brake head when it rotates to different angles on the first rotating shaft. The mechanism applies or does not apply tension to the inner diameter surface of the first braking groove, and applies different tensions, thereby providing the desired damping for the rotation of 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; by adjusting the rotational damping of the first traction disc, the first traction disc achieves the control of the first traction wire under the action of different magnitudes of friction, thereby realizing the adjustment of the angle and position of the endoscope lens in the first dimension by the first traction wire, which is beneficial to the bending and fixing of the distal curved part of the endoscope at any angle, and ultimately realizes the angular flexibility and stability of the endoscope lens during endoscopy, improving the efficiency of operation.

[0045] 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.

[0046] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 The first embodiment of this application is described in detail.

[0047] like Figure 1 The diagram shown is a cross-sectional view of the locking device 10 for endoscope adjustment provided in this embodiment; wherein, Figure 1 The left side is the first end of the locking device 10, that is, the end where the rotating wheel assembly 100 is provided; Figure 1 The right side shows the second end of the locking device 10, which is one end of the braking part 300. In this figure, due to obstructed view, the braking part 300 is not fully visible and is therefore not labeled. However, it can be referenced for easier understanding. Figure 3 The illustration. Figure 2 ,3 All Figure 1 A schematic diagram of the locking device 10 in the unlocked state. Figure 2 , 3 All Figure 1 The diagram shows the structure of the locking device 10 rotating clockwise so that the second end of the locking device 10, i.e., the braking part 300, faces out of the paper. Figure 3 The locking device 10 in the middle does not show the first traction disc that obstructs the view.

[0048] like Figure 1 As shown, the locking device 10 includes the following components or parts: a rotating wheel assembly 100; and a braking part 300.

[0049] The arrangement of the above-mentioned components can be roughly described as follows: the rotating wheel assembly 100 is located at the first end of the locking device 10 ( Figure 1 (Left side), the braking part 300 is located at the second end of the locking device 10 ( Figure 1 (On the right side), the rotating wheel assembly 100 and the braking unit 300 are connected by a brake clutch mechanism 350. The brake clutch mechanism 350 is arranged between the inner diameter surface of the brake groove on the traction disc of the rotating wheel assembly 100 (see the detailed description of the rotating wheel assembly 100 later) and the circumferential surface of the brake head of the braking unit 300. Through the cooperation between the brake head in the braking unit 300 and the brake clutch mechanism 350, tension force can be applied or not applied to the inner diameter surface of the brake groove of the traction disc of the rotating wheel assembly 100, and different tension forces can be applied, thereby providing the desired damping for the rotation of the rotating wheel assembly 100.

[0050] In this embodiment, the locking device 10 further includes the following component: a handle; this component is not shown in the accompanying drawings of this application, but as a necessary component in the endoscope operation process, those skilled in the art can easily understand the purpose of this component; the handle is actually the housing of the locking device 10, providing a positioning base for other components; it is called a handle because it serves as a handle in the overall structure of the endoscope, and is generally designed as two interlocking covers that can be disassembled according to assembly and repair needs; in this embodiment, the handle is a hollow cylindrical shell made of plastic, used to provide an installation position for the rotary wheel assembly 100 and the braking part 300.

[0051] Next, the rotary assembly 100 is described, which includes: a first rotary assembly 110; and a second rotary assembly 130.

[0052] The following is a detailed introduction to each component.

[0053] 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.

[0054] The first rotating wheel 111 is connected to the first end of the first rotating shaft 113, serving as an operating handle on the first rotating shaft 113. In this embodiment, the first rotating wheel 111 is fixedly and detachably connected to the first end of the first rotating shaft 113; the first traction disc 115 is fixedly disposed at the other end of the first rotating shaft 113, i.e., the second end of the first rotating shaft 113. Figure 1 (Right side); 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. 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 fixedly disposed at the second end of the second rotating shaft 133. As can be seen from the figure, the second traction disc 135 is disposed at the first end relative to the first traction disc 115. Figure 1 (Right side) Position. Furthermore, the first rotating wheel 111 is located closer to the first end of the second rotating wheel 131, and the first rotating wheel 111 is provided with a boss extending towards the second end, while the second rotating wheel 131 is provided with a corresponding groove, allowing the boss to embed 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 layout of the entire locking device will be significantly different from this embodiment, but its principle is not fundamentally different.

[0055] After introducing the structure and connection relationship of each shaft and wheel, the structure of the traction disc will be introduced next. Since the second traction disc 135 has the same structure as the first traction disc 115, please refer to the description of the first traction disc 115 for the structure of the second traction disc 135. It will not be repeated here.

[0056] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of the first traction disc 115 in the locking device 10. The figure also shows the first rotating shaft 113 connected to the first traction disc 115. The following is in conjunction with... Figure 6 For a detailed description of the specific structure of the first traction disc 115, please also refer to... Figure 1 .

[0057] The first traction disc 115 is disposed at the second end of the first rotating shaft 113; the first traction disc 115 has a position for fixing the first traction wire 1153. By rotating the first traction disc 115, the extension distance of the first traction wire 1153 can be adjusted, and the first traction wire 1153 can pull the endoscope lens, so that the endoscope is at a suitable angle in the dimension controlled by the first traction wire 1153.

[0058] according to Figure 6 As shown, the first traction disc 115 includes: a first traction disc groove 1151; a first traction wire 1153; a first traction hole 1155; a first traction disc center hole 1157; a first brake groove 1159; and a first brake groove inner diameter surface 11591.

[0059] The first traction disc 115 has a hollow disc structure. The first traction disc groove 1151 is located on the outer circumferential surface of the first traction disc 115. The first traction wire 1153 enters the first traction disc 115 through the first traction disc groove 1151. The circumferential surface of the first traction disc 115 is provided with symmetrical bidirectional first traction holes 1155, which are used for the intake and release of the first traction wire 1153. The center position of the first traction disc 115 is provided with a first traction disc center hole 1157, which is fitted and fixed to the first rotating shaft 113. Through this structure, the first traction disc 115 is installed on the second end of the first rotating shaft 113. The end face of the first traction disc 115 is provided with a first braking groove 1159. The inner diameter surface 11591 of the first braking groove 1159 is used to fit against the outer diameter surface of the tensioning plate 353 of the brake clutch mechanism 350. By applying or not applying tension to the inner diameter surface 11591 of the first braking groove... The tension is adjusted by applying different tension forces to provide the desired damping for the rotation of the first rotating shaft 113. One end of the first traction wire 1153 is fixed to the first traction disc 115 and can be inserted into the groove 1151 of the first traction disc. By rotating the first traction disc 115, the winding and unwinding of the first traction wire 1153 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 unwinding of the first traction wire 1153 in the first dimension, thereby adjusting its extension distance. As a possible arrangement, in this embodiment, the first traction wire 1153 consists of two traction lines. The observation angle in the first dimension is in the vertical direction. The two traction lines of the first traction wire 1153 control the observation angle of the endoscope in the vertical direction separately. In this embodiment, the composition and control dimension of the first traction wire 1153 are only illustrative, and other possible compositions and control methods for the first traction wire 1153 are not excluded.

[0060] Similar to the first traction disc 115, the second traction disc 135 has a similar structure, the difference being that it is located at the second end of the second rotating shaft 133; in this embodiment, a second braking groove 1359 is provided on the end face of the second traction disc 135. Specifically, the first braking groove 1159 and the second braking groove 1359 are respectively located on the opposite end faces of the first traction disc 115 and the second traction disc 135. Figure 1(Right side); When the brake clutch mechanism 350 applies tension force to the inner diameter surface of the first brake groove 1159, it can simultaneously apply tension force to the inner diameter surface of the second brake groove 1359, thereby providing the desired damping for the rotation of the second rotating shaft 133. The 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 1153. By rotating the second traction disc 135, the winding and unwinding 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 unwinding of the second traction wire, thereby adjusting its extension distance. The second dimension and the first dimension are in different directional dimensions.

[0061] In this embodiment, the first traction wire and the second traction wire are both embedded in the endoscope's catheter. The two ends of each traction wire are respectively positioned at the curved end and the traction disc end of the endoscope catheter. One end is connected to the corresponding traction disc, and the other end is fixed in the catheter. Generally, after one end of a traction wire is pulled by the corresponding traction disc, when the traction disc rotates, 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 (first or second), so that the endoscope lens can deflect at a certain angle and change the observation angle.

[0062] The above content introduced the rotary wheel assembly 100. Next, we will introduce the braking unit 300.

[0063] The braking unit 300 includes: a first brake head 310; a brake handle 330; and a brake clutch mechanism 350. Due to the close relationship between these three components, there is some overlap in their descriptions.

[0064] The first brake head 310 in the braking unit 300 is sleeved on the outer peripheral surface of the first rotating shaft 113 and can rotate around the first rotating shaft 113; the brake handle 330 is fixedly connected to the outer peripheral surface of the first brake head 310, and the brake handle 330 extends radially along the first rotating shaft 113. The rotation angle of the first brake head 310 on the first rotating shaft 113 can be controlled by the brake handle 330; the brake clutch mechanism 350 is provided between the first brake head 310 and the first brake groove 1159 in the rotating wheel assembly 100; in this embodiment, as a specific implementation, the brake clutch mechanism 350 is arranged opposite to the first brake groove 1159 and the second brake groove 1359.

[0065] The first brake head 310 includes: a pressing boss 311; a first pressing boss 3111; a second pressing boss 3113; and a brake head center hole 313.

[0066] The brake clutch mechanism 350 includes: a brake clutch mechanism body 351; a tensioning plate 353; a tensioning plate part 3531; a tensioning plate part 3533; a brake clutch mechanism center hole 355; a positioning hole 357; and an arc-shaped through hole 359.

[0067] Figure 4 This is a schematic diagram of the brake clutch mechanism 350; Figure 5 This is a schematic diagram of the structure of the first brake head 310 and brake handle 330 in the locking device 10; due to the close fit of the above components, there is some overlap in the description process; the following is combined with... Figure 4 , Figure 5 For a detailed description of the structure of each component in the braking unit 300, please refer to [reference needed]. Figure 1 , Figure 3 .

[0068] like Figure 5 As shown, the first brake head 310 is an overall annular rotary wheel ( Figure 5 (Illustrated below) The annular first brake head 310 has a brake head center hole 313 at its center. Through the brake head center hole 313, the first brake head 310 is disposed on the outer circumferential surface of the first rotating shaft 113. The first brake head 310 can rotate to different angles on the first rotating shaft 113. In this embodiment, specifically, the first brake head 310 is sleeved on the first rotating shaft 113. A pressing boss 311 is provided on the outer circumferential surface of the first brake head 310. The pressing boss 311 is used to cooperate with the tensioning plate 353 on the brake clutch mechanism 350. The first brake head 310 rotates to different angles on the first rotating shaft 113, so that the pressing boss 311 is in different angular positions on the circumference, so that the pressing boss 311 and the tensioning plate 353 in the brake clutch mechanism 350 are in a close or separate position, and in different degrees of closeness, thereby realizing the radial pressing of the tensioning plate 353 and obtaining the different degrees of pressing.

[0069] In this embodiment, as a specific implementation, the outer peripheral surface of the first brake head 310 is provided with plum blossom-shaped extrusion protrusions 311, and the extrusion protrusions 311 are composed of two sets of symmetrically arranged extrusion protrusion part 3111 and extrusion protrusion part 3113; wherein, the extrusion protrusion part 3111 is disposed between the inner diameter surface 11591 of the first brake groove and the outer peripheral surface of the tensioning plate part 3531; the extrusion protrusion part 3113 is disposed between the inner diameter surface 13591 of the second brake groove and the outer peripheral surface of the tensioning plate part 3533; the brake handle 330 is fixedly disposed on one side of the outer peripheral surface of the first brake head 310. Figure 5Above), the brake handle 330 has a connecting rod with a radius significantly larger than that of the first rotating wheel 111. The connecting rod extends radially along the first rotating shaft 113 and provides an operating surface for easy to operate. By moving the brake handle 330, the first brake head 310 is rotated to different angles on the first rotating shaft 113, causing the first extrusion boss 3111 and the second extrusion boss 3113 to synchronously change their angular positions on the circumference. This allows for adjustment of the degree of contact between the first extrusion boss 3111 and the first tensioning plate 3531, as well as the degree of contact between the second extrusion boss 3113 and the second tensioning plate 3533, thereby achieving radial extrusion of the first tensioning plate 3531 and the second tensioning plate 3533.

[0070] The brake clutch mechanism body 351 is an isolation plate fixed on the housing of the locking device 10. The brake clutch mechanism body 351 is disposed opposite to the end face of the first brake groove 1159 on the first traction disc 115. At least one cantilever beam structure spring plate extending from the end face of the brake clutch mechanism body 351 as a tensioning plate 353 is provided on the end face of the brake clutch mechanism body 351 opposite to the first traction disc 115. The tensioning plate 353 extends into the first brake groove 1159, so that the outer peripheral surface of the tensioning plate 353 is close to the inner diameter surface 11591 of the first brake groove. Multiple tensioning plates 353 are provided on the end face of the brake clutch mechanism body 351 and are disposed around the circumference of the first brake head 310 and corresponding to the first brake head 310. The multiple tensioning plates 353 can be evenly arranged on the circumference or unevenly arranged. By radially compressing the tensioning plate 353, the tensioning plate 353 can be radially expanded, thereby causing the outer diameter surface of the tensioning plate 353 to conform to the inner diameter surface 11591 of the first brake groove, thus applying tension force to the inner diameter surface 11591 of the first brake groove. The tensioning plate 353 has different inner diameter dimensions along the circumferential direction, so that different degrees of compression can be obtained at different contact positions when the extrusion boss 311 and the tensioning plate 353 are in contact. By different degrees of compression, the tightness of the contact between the tensioning plate 353 and the inner diameter surface 11591 of the first brake groove can be adjusted, thereby applying different tension forces to the inner diameter surface 11591 of the first brake groove.

[0071] The brake clutch mechanism body 351 is sleeved on the first rotating shaft 113, with a predetermined gap between them. Furthermore, the outer circumferential surface of the brake clutch mechanism body 351 is provided with an arc-shaped through hole 359 extending upwards by a predetermined arc. The brake handle 330 of the brake unit 300 passes through the arc-shaped through hole 359 of the brake clutch mechanism 350 and extends radially. The arc-shaped through hole 359 provides space for the swing of the brake handle 330 and limits its range of motion. The swing of the brake handle 330 drives the first brake head 310 to rotate, thereby rotating the first brake head 310 to different angles on the first rotating shaft 113. (Reference) Figure 3 and Figure 4 As illustrated in the diagram, the brake clutch mechanism body 351 has a brake clutch mechanism center hole 355 at its center. Through the brake clutch mechanism center hole 355, the brake clutch mechanism body 351 is disposed on the outer peripheral surface of the first brake head 310 and sleeved on the first rotating shaft 113.

[0072] In this embodiment, as a specific implementation, the brake clutch mechanism body 351 is disposed at the gap between the first traction disc 115 and the second traction disc 135, and is disposed opposite to the end faces of the first brake groove 1159 and the second brake groove 1359; the brake clutch mechanism body 351 is fixed in the housing of the locking device 10 through the positioning hole 357 on the brake clutch mechanism body 351; the brake clutch mechanism body 351 is generally an arc-shaped triangular structure, which facilitates the overall stability of the brake clutch mechanism body 351; an arc-shaped tensioning plate 353 is provided on the end face of the brake clutch mechanism body 351 (i.e., the isolation plate), the arc-shaped tensioning plate 353 is a cantilever beam structure, one end of its root is fixedly connected to the brake clutch mechanism body 351, and the other end extends out in the air, the radial thickness of the tensioning plate 353 gradually changes with the arc curvature of the tensioning plate 353; in this embodiment, the tensioning plate 353 is made of elastic material, such as soft rubber or rubber block; Figure 4As shown, the tensioning plate 353 consists of a tensioning plate part 3531 and a tensioning plate part 3533. The tensioning plate part 3531 and the tensioning plate part 3533 are symmetrically arranged on both sides of the end face of the brake-clutch mechanism body 351. The tensioning plate part 3531 consists of a set of arc-shaped tensioning plates. In this embodiment, specifically, the tensioning plate part 3531 is composed of three arc-shaped tensioning plates. These three tensioning plates are arranged in a ring with intervals, surrounding the edge of the brake-clutch mechanism's central hole 355. The tensioning plate part 3533 has the same structure as the tensioning plate part 3531. Through the tensioning... The radial expansion of the tensioning plate part 3531 causes its outer diameter surface to fit against the inner diameter surface 113591 of the first brake groove; the radial expansion of the tensioning plate part 3533 causes its outer diameter surface to fit against the inner diameter surface 13591 of the second brake groove. By varying the degree of compression, the tightness of the fit can be adjusted, thereby applying different tension forces to the inner diameter surfaces 11591 and 13591 of the first and second brake grooves, thus providing the desired damping for the rotation of the first and second rotating shafts 113 and 133.

[0073] When the endoscope is in operation, by swinging the brake handle 330, the compression protrusion 311 on the first brake head 310 is rotated synchronously, causing the compression protrusion 311 to be at different angular positions on the circumference. This results in the compression protrusion 311 and the tensioning plate 353 being in a fitted or separated position, and at different degrees of fit, thereby achieving radial compression of the tensioning plate 353 and obtaining different degrees of compression. By radially compressing the tensioning plate 353, it can be radially expanded, causing the outer diameter surface of the tensioning plate 353 to fit against the inner diameter surface 11591 of the annular first brake groove and the inner diameter surface 1359 of the second brake groove. 1. To achieve the application of tension force to the inner diameter surfaces 11591 and 13591 of the first and second brake grooves, the tightness of the contact between the tensioning plate 353 and the inner diameter surfaces 11591 and 13591 of the first and second brake grooves can be adjusted by different degrees of compression. This allows for the application of different tension forces to the inner diameter surfaces 11591 and 13591 of the first and second brake grooves, thereby providing the desired damping for the rotation of the first and second rotating shafts 113 and 133. Generally, the locking device 10 can have an unlocked state and a locked state, and can provide different degrees of damping in the middle of the two states.

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

[0075] Figure 3 It shows Figure 1A schematic diagram of the locking device 10 in the unlocked state. See below for reference. Figures 1 to 3 This section briefly describes the operation of the locking device 10, focusing on the switching process between the locked and unlocked states. For ease of observation, Figure 3 The locking device 10 is not shown, nor is the first traction disc 115 obstructing the view.

[0076] When it is necessary to lock the endoscope locking device 10, the brake handle 330 is rotated counterclockwise around the first rotating shaft 113 by a certain angle (e.g., ...). Figure 3 As shown (from position B to position A), the brake handle 330 drives the extrusion boss 311 to rotate synchronously around the first rotating shaft 113 at a certain angle. During the rotation of the extrusion boss 311, the extrusion boss 311 and the tensioning plate 353 change from a separated state to a fitted state, and as the rotation angle increases, the fit between the two becomes tighter and tighter, and the degree of extrusion of the extrusion boss 311 on the tensioning plate 353 becomes greater and greater. Since the tensioning plate 353 is a cantilever beam structure and has different inner diameter dimensions along the circumference, the extrusion boss... During the compression of the tensioning plate 353 by the platform 311, the tensioning plate 353 begins to expand radially along the first rotating shaft 113, thereby achieving abutment and contact between the outer diameter surface of the tensioning plate 353 and the inner diameter surfaces of the first braking groove 1159 and the second braking groove 1359. This allows tension to be applied to the inner diameter surfaces of the first braking groove 1159 and the second braking groove 1359. Furthermore, different magnitudes of tension can be applied when the extrusion boss 311 is in different contact positions with the tensioning plate 353. Under the action of the aforementioned tension, the rotation of the first traction disc 115 and the second traction disc 135 is hindered until they cannot rotate at all, locking the first traction disc 115 and the second traction disc 135 in their current rotational positions. This locks the locking device 10 into a locked state, fixing the traction length of the traction wire associated with the traction disc in the vertical and horizontal directions within the endoscope guide tube, thus achieving endoscope lens angle locking. Please refer to... Figure 3 The diagram shows that the extruded boss 311 is... Figure 3 When in position, it begins to contact the tension plate 353. Due to the small degree of contact, the tension plate 353 has not yet undergone radial expansion deformation. For ease of observation, the first traction disc 115 is not shown in this figure. Based on the principle description, the process of the outer diameter surface of the tension plate 353 and the inner diameter surface of the first braking groove 1159 abutting and fitting together can be easily understood.

[0077] When it is necessary to unlock the endoscope locking device 10, the brake handle 330 is rotated clockwise around the first pivot 113 by a certain angle (e.g., ...). Figure 3As shown from position A to position B, the brake handle 330 drives the pressing boss 311 to rotate synchronously around the first rotating shaft 113 by a certain angle. During the rotation of the pressing boss 311, as the rotation angle increases, the pressing degree of the pressing boss 311 on the tensioning plate 353 decreases, the expansion of the tensioning plate 353 in the radial direction along the first rotating shaft 113 decreases, and the degree of contact between the outer diameter surface of the tensioning plate 353 and the inner diameter surfaces of the first brake groove 1159 and the second brake groove 1359 decreases; thus, the tension force loaded on the first rotating shaft 113 and the second rotating shaft 133 gradually decreases. Until it disappears; (when the outer diameter surface of the tensioning plate 353 changes from a contact state to a separation state with the inner diameter surfaces of the first braking groove 1159 and the second braking groove 1359, the tension disappears), the locking device 10 disengages from the locked state and enters the unlocked state. The first traction disc 115 and the second traction disc 135 can rotate flexibly with the operator's operation of the first rotating wheel 111 and the second rotating wheel 131. The traction wire associated with the traction disc can be flexibly wound and unwound under the traction of the corresponding rotating wheel, thereby allowing the angle of the endoscope lens to be flexibly adjusted.

[0078] Between the aforementioned locked and unlocked positions, the brake handle 330 can be operated to position it between A and B, placing the locking device 10 in different damping states. This allows for different adjustments to the tightness of the rotating wheel as needed. The locking device 10 allows the endoscope to be set to a suitable position during adjustment. When unlocked, the endoscope lens angle can be freely adjusted via the rotating wheel. When locked, the endoscope is fixed in a fixed state, preventing any change in lens angle. The damping state between these two positions provides the operator with the desired feel for turning the rotating wheel, facilitating operation.

[0079] The principle of the above embodiment is briefly explained below. The combination of the brake handle 330 and the first brake head 310 forms a lever mechanism. Since the brake handle 330 is relatively long, it is equivalent to the long arm of the lever, which can easily move the first brake head 310. On the contrary, it is difficult to move the brake handle 330 when the first brake head 310 swings.

[0080] The first embodiment described above is a preferred embodiment, and obviously, other variations are possible based on its fundamental principle. For example, the rotary assembly 100 includes a first rotary assembly 110, meaning the locking device 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 earlier, are in opposite positions, rather than being at the same end as in this embodiment.

[0081] In the above embodiments, a further preferred embodiment is that the locking device for endoscope adjustment can further divide the braking part into two groups: a first braking part and a second braking part, which respectively provide damping for the first rotating shaft and the second rotating shaft, thereby realizing independent control and adjustment of the observation angle of the endoscope in the first dimension and the second dimension. The second dimension and the first dimension are in different directional dimensions.

[0082] In this preferred embodiment, the arrangement of the first and second rotating shafts is changed to a relative arrangement. The first braking part has a first braking head sleeved on the first rotating shaft and capable of rotating around the first rotating shaft, and the second braking part has a second braking head sleeved on the second rotating shaft and capable of rotating around the second rotating shaft. The structure of the first and second braking parts is similar to that of the braking part in the first embodiment described above. This preferred embodiment enables the endoscope to independently adjust the observation angle in another dimension while ensuring that the observation angle in one dimension is determined.

[0083] The second embodiment of this application also provides a locking device; the following is combined with Figures 1-6 The structure and working process are explained. 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 second embodiment and the first embodiment share common innovative points, 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.

[0084] The locking device 10' is typically used in testing scenarios. 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 enable 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 function and application scenario requirements of the locking device 10'. This embodiment does not impose specific limitations.

[0085] The locking device 10' includes: a first rotating wheel 111, a first rotating shaft 113, and a braking part 300;

[0086] 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 the second end; a first braking groove 1159 is provided on the first functional disk 115' at the part that engages with the first rotating shaft 113;

[0087] The braking unit 300 has a first brake head 310 sleeved on the first rotating shaft 113 and rotatable around the first rotating shaft 113, and a brake handle 330 connected to the first brake head 310 and extending radially; the rotation angle of the first brake head 310 on the first rotating shaft 113 can be controlled by the brake handle 330.

[0088] A brake clutch mechanism 350 is provided between the first brake head 310 and the first brake groove 1159. When the first brake head 310 rotates on the first rotating shaft 113 to different angles, the brake clutch mechanism 350 can apply or not apply tension force to the inner diameter surface of the first brake groove 1159, and apply different tension forces, thereby providing the desired damping for the rotation of the first rotating shaft 113.

[0089] The locking device 10 provided in the second embodiment described above may also include other necessary structures, such as a detection device or a display device for cooperating with the locking device.

[0090] 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.

[0091] In this specification, the terms "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.

[0092] 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 unit; 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; a first braking groove is provided on the first traction disc at the joint with the first rotating shaft; The braking unit has a first brake head sleeved on the first rotating shaft and rotatable around the first rotating shaft, and a brake handle connected to the first brake head and extending radially; the rotation angle of the first brake head on the first rotating shaft can be controlled by the brake handle. A brake clutch mechanism is provided between the first brake head and the first brake groove; the brake clutch mechanism includes an isolation plate fixed to the housing of the locking device, the isolation plate being disposed opposite to the end face of the first brake groove on the first traction disc; at least one cantilever beam structure spring plate extending from the end face of the isolation plate as a tensioning plate is provided on the end face of the isolation plate opposite to the first traction disc, the tensioning plate extending into the first brake groove, so that the outer peripheral surface of the tensioning plate is close to the inner diameter surface of the first brake groove; The outer peripheral surface of the first brake head is provided with a pressing boss that cooperates with the tensioning plate; The first brake head rotates to different angles on the first rotating shaft, which can make the extrusion boss be in different angular positions on the circumference, so that the extrusion boss and the tensioning plate are in a close or separate position, and in different degrees of closeness, thereby realizing radial extrusion of the tensioning plate and obtaining different degrees of extrusion; By radially compressing the tensioning plate, it can be radially expanded, thereby causing the outer diameter surface of the tensioning plate to fit against the inner diameter surface of the first brake groove, thus applying tension force to the inner diameter surface of the first brake groove. By varying the degree of compression, the tightness of the fit between the tensioning plate and the inner diameter surface of the first brake groove can be adjusted, thereby applying different tension forces to the inner diameter surface of the first brake groove, thus providing the desired damping for the rotation of the first 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, The tensioning plate has different inner diameters along the circumference, so that different degrees of compression can be obtained at different contact positions when the extrusion boss is in contact with the tensioning plate.

3. The locking device for endoscope adjustment according to claim 1, characterized in that, The tensioning plates are provided in multiple locations and are arranged around the circumference of the first brake head, corresponding to the first brake head; the multiple tensioning plates are evenly or unevenly arranged on the circumference.

4. The locking device for endoscope adjustment according to claim 1, characterized in that, The isolation plate is sleeved on the first rotating shaft with a set gap between it and the first rotating shaft. Furthermore, an arc-shaped through hole with a set arc extending upward around the outer circumference of the isolation plate is provided. The brake handle of the braking part passes through the arc-shaped through hole of the brake clutch mechanism and extends in the radial direction. The arc-shaped through hole provides space for the swing of the brake handle and limits the range of motion. The swing of the brake handle drives the first brake head to rotate, thereby causing the first brake head to rotate to different angles on the first rotating shaft.

5. The locking device for endoscope adjustment according to claim 1, characterized in that, The locking device further 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 first and second rotating shafts are coaxial. The second rotating shaft is sleeved on the outer circumferential surface of the first rotating shaft. A second traction disc is provided at the second end of the second rotating shaft. A second braking groove is provided at the engagement part of the second traction disc with the second rotating shaft. When the braking clutch mechanism applies tension to the inner diameter surface of the first braking groove, it can apply tension to the inner diameter surface of the second braking groove, thereby providing the 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 the second dimension, which is in a different directional dimension from the first dimension.

6. The locking device for endoscope adjustment according to claim 5, characterized in that, The first braking groove and the second braking groove are respectively disposed on the opposite end faces of the first traction disc and the second traction disc.

7. A locking device, characterized in that, include: The first rotating wheel, the first rotating shaft, and the braking unit; 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; a first braking groove is provided at the joint of the first functional disk with the first rotating shaft; The braking unit has a first brake head sleeved on the first rotating shaft and rotatable around the first rotating shaft, and a brake handle connected to the first brake head and extending radially; the rotation angle of the first brake head on the first rotating shaft can be controlled by the brake handle. A brake clutch mechanism is provided between the first brake head and the first brake groove; the brake clutch mechanism includes an isolation plate fixed to the housing of the locking device, the isolation plate being disposed opposite to the end face of the first brake groove on the first functional disk; at least one cantilever beam structure spring piece extending from the end face of the isolation plate as a tensioning piece is provided on the end face of the isolation plate opposite to the first functional disk, the tensioning piece extending into the first brake groove, so that the outer peripheral surface of the tensioning piece is close to the inner diameter surface of the first brake groove; The outer peripheral surface of the first brake head is provided with a pressing boss that cooperates with the tensioning plate; The first brake head rotates to different angles on the first rotating shaft, which can make the extrusion boss be in different angular positions on the circumference, so that the extrusion boss and the tensioning plate are in a close or separate position, and in different degrees of closeness, thereby realizing radial extrusion of the tensioning plate and obtaining different degrees of extrusion; By radially compressing the tensioning plate, it can be radially expanded, thereby causing the outer diameter surface of the tensioning plate to conform to the inner diameter surface of the first brake groove, thus applying tension force to the inner diameter surface of the first brake groove. By varying the degree of compression, the tightness of the fit between the tensioning plate and the inner diameter surface of the first brake groove can be adjusted, thereby applying different tension forces to the inner diameter surface of the first brake groove, thus providing the desired damping for the rotation of the first shaft.

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