Locking device for use in endoscope, endoscope and locking device

Abstract

The present application provides a locking device (10, 10', 210) for use in an endoscope, an endoscope (2) and a locking device (210'), the locking device (10, 10', 210) for use in an endoscope including a first rotating wheel (111, 2111), a first rotating shaft (113, 2113), a brake disc (300, 2300) and a brake disc drive module (500, 2500), The wheel (111, 2111) is connected to a first end of the first rotating shaft (113, 2113), and a first traction disk (115, 2115) is installed at a position near a second end of the first rotating shaft (113, 2113), and the first rotating wheel (111, 2111) can control the rotation of the first rotating shaft (113, 2113) and move the first traction disk (115, 2115) to rotate. the rotation of the traction disc (115, 2115) adjusts the first traction sled (1153, 21153), thereby adjusting the observation angle of the endoscope in a first dimension; the brake disc (300, 2300) is installed on at least one side of the outer circumferential surface of the first rotating shaft (113, 2113); the brake disc drive module (500, 2500) can adjust the degree of tightening of the bonding between the brake disc (300, 2300) and the outer circumferential surface of the first rotating shaft (113, 2113) or the first traction disc (115, 2115), so that the rotation damping of the first rotating shaft (115, 2115) is within a first predetermined damping range; and the locking device (10, 10', 210) used in the endoscope can improve the flexibility and stability of the angle of the lens of the endoscope during operation.

Description

[Technical field]

[0001] The present application relates to the field of medical instruments, and more particularly to a locking device for use with an endoscope, and an endoscope and a locking device. [Background technology]

[0002] With the reform of the nation's medical system, advances in medical technology, and the widespread use of advanced medical equipment, endoscopic instruments are now widely used in everyday medical procedures.

[0003] As a general medical device, the main components of the endoscopic instrument are a traction sled, a bendable part, a light source, and a lens. In order to facilitate the observation of the lesion, a locking device is assembled at the rear end of the endoscope. In actual use, the tip lens of the endoscope enters the human body through a minimally invasive incision, and after the tip lens of the endoscope is usually adjusted to an appropriate position, the lens of the endoscope is further fixed at a certain angle, and the locking device at the rear end of the endoscope realizes the movement control of the bendable part, and further realizes the adjustment of the observation angle of the tip lens of the endoscope, so as to directly look into the lesion situation of the relevant part. Therefore, the endoscope locking device, as an important module in the actual surgical operation, plays an important role in realizing the observation of the lesion.

[0004] In conventional endoscope locking devices, a locking hand wheel is usually used to adjust and lock the lens, and there are problems such as insufficient stability when the locking hand wheel manipulates the lens during operation, not high positioning precision, and inflexible bending angle. Therefore, it is a technical problem to be solved by those skilled in the art to provide a locking device for use in an endoscope that can improve the angular flexibility and stability of the endoscope lens during operation. Summary of the Invention

[0005] The present invention provides a locking device for an endoscope, which solves the problems of the conventional locking device having insufficient operational stability, low precision, and inflexible bending angle. The present invention further provides an endoscope and the locking device using the above locking device.

[0006] According to the locking device for an endoscope provided in an embodiment of the present invention, the locking device includes a first rotating wheel, a first rotating shaft, a brake disc, and a brake disc driving module, the first rotating wheel is connected to a first end of the first rotating shaft, and a first traction disc is installed at a position closer to a second end of the first rotating shaft, the first rotating wheel can control the rotation of the first rotating shaft and move the first traction disc to rotate, and the rotation of the first traction disc adjusts the first traction sled, thereby adjusting the observation angle of the endoscope in a first dimension, the brake disc is installed on at least one side of the outer peripheral surface of the first rotating shaft or the first traction disc, and the brake disc driving module can adjust the degree of fastening between the brake disc and the outer peripheral surface of the first rotating shaft or the first traction disc, so that the rotation damping of the first rotating shaft is within a first predetermined damping range.

[0007] In one embodiment of the present application, the brake disc is generally a frame structure that clamps the peripheral surface of the first rotating shaft or the first traction disc, the frame structure has a brake disc opening that allows it to be opened up and down, the brake disc drive module has a fastener, the fastener is installed at least at one end of the brake disc opening, and the fastener can adjust the biasing force applied to the brake disc, thereby changing the clamping force applied to the first rotating shaft of the brake disc or the first traction disc, thereby adjusting the degree of tightening of the bonding between the brake disc and the first rotating shaft or the peripheral surface of the first traction disc, and thereby making the rotational damping of the first rotating shaft fall within a first predetermined damping range.

[0008] In one embodiment of the present application, a protrusion is provided at a root position of the brake disc opposite the brake disc opening, and the protrusion fixes the brake disc within the body of the locking device.

[0009] In one embodiment of the present application, a gap is provided at the root position of the brake disc to increase the elastic deformation space of the brake disc.

[0010] In one embodiment of the present application, the protrusion is disposed between the first clamping post and the second clamping post on the fuselage, thereby realizing that the brake disc is fixed within the fuselage of the locking device.

[0011] In one embodiment of the present application, the fastener includes a stud, and an upper nut and a lower nut that screw onto the stud, the upper nut is installed at an upper end opening of the brake disc opening, and the lower nut is installed at a lower end opening of the brake disc opening, the upper nut and a first segment of the stud form a first threaded pair, and the lower nut and a second segment of the stud form a second threaded pair, the first threaded pair and the second threaded pair having opposite thread rotation directions, and the biasing force applied to the brake disc is adjusted by rotating the stud.

[0012] In one embodiment of the present application, the fastener includes a stud and a female thread is provided at an opening position of the frame structure to threadably engage with the stud, wherein an upper end opening of the opening threadably engages with a first segment of the stud to form a third threaded pair and a lower end opening of the opening threadably engages with a second segment of the stud to form a fourth threaded pair, the third threaded pair and the fourth threaded pair having opposite thread rotation directions, and the biasing force applied to the brake disc is adjusted by rotating the stud.

[0013] In one embodiment of the present application, the stud is provided with a gripping portion that extends outside the fuselage shell and is used by an operator of the locking device to rotate the stud.

[0014] In one embodiment of the present application, the studs are provided with end faces that abut the exterior surface of the fuselage shell.

[0015] In one embodiment of the present application, the locking device further 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, the first rotating shaft is coaxial with the second rotating shaft, the second rotating shaft is fitted on the outer circumferential surface of the first rotating shaft, and a second traction disc is installed at a position close to the second end of the second rotating shaft, the second rotating wheel can control the rotation of the second rotating shaft and move the second traction disc to rotate, the rotation of the second traction disc adjusts the second traction thread, thereby adjusting the observation angle of the endoscope in a second dimension, the second dimension being in a direction dimension different from the first dimension, the brake disc further clamps the outer circumferential surface of the second rotating shaft or the second traction disc as a whole, when the brake disc exerts a clamping force on the first rotating shaft, the first traction disc, it also exerts a corresponding clamping force on the second rotating shaft, the second traction disc, so that the required damping provided to the rotation of the second rotating shaft is within a second predetermined damping range.

[0016] In one embodiment of the present application, a brake disc is installed on one side of the outer circumferential surface of a first rotating shaft, and a brake disc driving module can adjust the degree of fastening between the brake disc and the outer circumferential surface of the first rotating shaft, so that the rotational damping of the first rotating shaft is within a first predetermined range.

[0017] In one embodiment of the present application, the locking device used in the endoscope further 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, the second rotating shaft is coaxial with the first rotating shaft, a second traction disc is installed near the second end of the second rotating shaft, and a brake disc is located on at least one side of the outer circumferential surface of the second rotating shaft, and the degree of fastening between the brake disc and the outer circumferential surface of the first rotating shaft is adjusted while the degree of fastening between the brake disc and the outer circumferential surface of the second rotating shaft is also adjusted synchronously to make the rotation damping of the second rotating shaft within a second predetermined damping range, and the rotation of the second traction disc is used to adjust the second traction sled of the endoscope, thereby adjusting the observation angle of the endoscope in a second dimension, the second dimension being in a directional dimension different from the first dimension.

[0018] In one embodiment of the present application, an O-shaped seal ring is provided at a bonding location between the outer circumferential surface of the first rotating shaft and / or the outer circumferential surface of the second rotating shaft and the brake disc.

[0019] In one embodiment of the present application, a surface groove that increases frictional force is provided on the bonding surface of the brake disc that contacts the outer circumferential surface of the first rotating shaft and / or the outer circumferential surface of the second rotating shaft.

[0020] In one embodiment of the present application, a positioning hole is provided at one end of the brake disc body, and the positioning hole is rotatably fitted into a fixed pillar of the shell of the locking device. By adjusting the swing angle of the brake disc around the fixed pillar, the degree of tightening of the bonding between the brake disc and the first rotating shaft and the second rotating shaft can be adjusted.

[0021] In one embodiment of the present application, an arc-shaped through hole is provided in the brake disc body of the brake disc, the brake disc drive module includes a drive member, the body of which is installed coaxially with a first rotation axis, the drive member further has an arm connected to the drive member body and extending radially to one side, an arm pillar extending in the axial direction is provided on the arm, the arm pillar is inserted into the arc-shaped through hole installed on the brake disc, the drive member rotates, and the arm pillar slides accordingly in the arc-shaped through hole, further moving the brake disc to swing around the fixed pillar, thereby adjusting the swing angle of the brake disc around the fixed pillar.

[0022] In one embodiment of the present application, the brake disc drive module further includes a shift lever, the shift lever having a predetermined length significantly greater than the diameter of the drive member body, one end of which is fixedly connected to the drive member body and the other end of which extends radially to provide an operating surface that is easy to shift, and the drive member can be rotated by shifting the shift lever.

[0023] In one embodiment of the present application, an isolation sheet is installed in the axial gap between the first traction disc and the second traction disc.

[0024] In one embodiment of the present application, the brake discs and brake disc drive modules are divided into two groups, providing damping for a first rotational axis and a second rotational axis, respectively.

[0025] An embodiment of the present application further provides an endoscope, which includes a first rotating wheel, a first rotating shaft, and a brake disc; a brake disc driving module, the first rotating wheel is connected to a first end of the first rotating shaft, and a first traction disc is disposed at a position close to a second end of the first rotating shaft; the first rotating wheel can control the rotation of the first rotating shaft and move the first traction disc to rotate; the brake disc is disposed on at least one side of the outer peripheral surface of the first rotating shaft or the first traction disc; the brake disc driving module can adjust the degree of fastening between the brake disc and the outer peripheral surface of the first rotating shaft or the first traction disc, so that the rotation damping of the first rotating shaft is within a first predetermined damping range; the rotation of the first traction disc is used to adjust the first traction sled, thereby adjusting the observation angle of the lens of the endoscope in a first dimension, and the adjustment can rotate the lens of the endoscope to a required observation angle in the first dimension and stop it as necessary according to the damping provided by the brake disc.

[0026] An embodiment of the present application further provides a locking device, which includes a first rotating wheel, a first rotating shaft, and a brake disc, and a brake disc driving module, wherein the first rotating wheel is connected to a first end of the first rotating shaft, and a first functional disc is installed at a position close to a second end of the first rotating shaft, the first rotating wheel can control the rotation of the first rotating shaft and move the first functional disc to rotate, the brake disc is installed on at least one side of an outer peripheral surface of the first rotating shaft or the first functional disc, and the brake disc driving module can adjust the degree of fastening between the brake disc and the outer peripheral surface of the first rotating shaft or the first functional disc, so that the rotation damping of the first rotating shaft is within a first predetermined damping range.

[0027] The locking device for an endoscope provided in an embodiment of the present invention includes a first rotating wheel, a first rotating shaft, and a brake disc; and a brake disc drive module, the first rotating wheel is connected to a first end of the first rotating shaft, and a first traction disc is disposed at a position near a second end of the first rotating shaft, the first rotating wheel can control the rotation of the first rotating shaft and move the first traction disc to rotate, the rotation of the first traction disc adjusts the first traction sled, thereby adjusting the observation angle of the endoscope in a first dimension, and the brake disc is driven by an outer peripheral surface of the first rotating shaft. and a brake disc drive module for adjusting the degree of fastening between the brake disc and the outer peripheral surface of the first rotating shaft or the first traction disc, thereby providing a desired damping for the rotation of the first rotating shaft; and when the locking device is operated, the first traction sled is pulled to ensure that the lens located at the curved portion of the distal end of the endoscope is fixed securely when it rotates to an angle that meets the requirements, thereby finally realizing the flexibility and stability of the angle at which the lens of the endoscope is positioned during the operation of the endoscope, and improving the efficiency of surgery.

[0028] In the first preferred embodiment of the present invention, the brake disc is a frame structure that clamps the peripheral surface of the first rotating shaft or the first traction disc as a whole, and the frame structure has a brake disc opening that opens it up and down, and the brake disc drive module has a fastener, which is installed at least at one end of the brake disc opening, and the fastener can adjust the biasing force applied to the brake disc, thereby changing the clamping force applied to the first rotating shaft or the first traction disc, thereby obtaining the effect of adjusting the degree of fastening between the brake disc and the peripheral surface of the first rotating shaft or the first traction disc, and realizing the desired damping of the rotation of the first rotating shaft. In a further preferred embodiment of the preferred embodiment, the fastener is realized using a screw pair structure. The above preferred embodiment can realize continuous adjustment of the clamping degree, can be reliably held in any adjustment position, and can meet various degrees of required operating feel.

[0029] In a second preferred embodiment of the present invention, the brake disc is disposed on one side of the outer circumferential surface of the first rotating shaft, and the brake disc driving module can adjust the degree of clamping between the brake disc and the outer circumferential surface of the first rotating shaft, thereby providing a desired damping of the rotation of the first rotating shaft. This preferred embodiment has the characteristics of simple structure and easy operation. [Brief description of the drawings]

[0030] These and other objects, features and advantages of the embodiments of the present application will become apparent from the following detailed description of the drawings, in which several embodiments of the application are illustrated by way of illustrative and non-limiting form.

[0031] [Figure 1A] 1 is a schematic cross-sectional view of a locking device used in an endoscope provided in a first embodiment of the present application. FIG. [Figure 1B] FIG. 1B is a structural schematic diagram of a brake disc drive module of the locking device in FIG. 1A; [Figure 2A] FIG. 1B is a structural schematic diagram of the locking device in FIG. 1A at another viewing angle. [Figure 2B] FIG. 2B is a structural schematic diagram of a brake disc of the locking device in FIG. 2A. [Diagram 3] FIG. 2B is a left side view corresponding to the locking device in FIG. 2A. [Figure 4] FIG. 2B is a plan view corresponding to the locking device in FIG. 2A. [Diagram 5] FIG. 2B is a structural schematic diagram of the first traction disc of the locking device in FIG. 2A; [Figure 6] 2B is a structural schematic diagram of another connection form between the upper disc of the brake disc and the lower disc of the brake disc of the locking device in FIG. 2A; [Figure 7] 2B is a schematic diagram of the locking device in FIG. 2A in a locked state; [Figure 8] FIG. 11 is a schematic cross-sectional view of a locking device provided in a second embodiment. [Figure 9] FIG. 11 is a structural schematic diagram of a first function disk of the locking device provided in the second embodiment. [Figure 10] FIG. 11 is a schematic diagram of a locking device provided in a second embodiment in a locked state; [Figure 11] 13 is a schematic cross-sectional view of a locking device used in an endoscope provided in a third embodiment. FIG. [Figure 12] 12 is a schematic diagram of a locking device used in the endoscope in FIG. 11 in an unlocked state. FIG. [Figure 13] 12 is a schematic diagram of a locking device used in the endoscope in FIG. 11 in a locked state. FIG. [Figure 14] FIG. 12 is a schematic diagram of the structure of a brake disc in a locking device used in the endoscope in FIG. 11, where the left side is a perspective view of the overall structure of the brake disc, and the right side is a front view of one disc sheet of the brake disc. [Figure 15] 12 is a structural schematic diagram of a drive member in a locking device used in the endoscope in FIG. 11. [Figure 16] 12 is a structural schematic diagram of a first traction disk in a locking device used in the endoscope in FIG. 11. FIG. [Figure 17] FIG. 11 is a schematic diagram of the overall structure of an endoscope provided in a fourth embodiment. [Figure 18] FIG. 13 is a schematic cross-sectional view of a locking device used in an endoscope provided in a fifth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] Hereinafter, the embodiments of the present application will be described in detail, and examples of the embodiments are shown in the drawings, in which the same or similar reference numerals throughout indicate the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are for interpreting the present application, and are not to be understood as limiting the present application.

[0033] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are based on the orientations or positional relationships shown in the drawings, and are intended only to facilitate and simplify the description of the present application, and are not intended to indicate or suggest that the devices or elements shown have a particular orientation or must be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] Additionally, the terms "first" and "second" are merely for descriptive purposes and cannot be understood as indicating or implying a relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature qualified with "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of this application, unless otherwise expressly and specifically limited, "plurality" means at least two, e.g., two, three, etc.

[0035] In this application, unless otherwise clearly specified and limited, the terms "attached", "coupled", "connected", "fixed" and the like should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integral, and unless otherwise clearly limited, they may be directly connected, indirectly connected via an intermediate medium, or may be internal communication between two elements or an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific situation.

[0036] In this application, unless otherwise clearly specified and limited, when a first feature is "on" or "under" a second feature, the first feature and the second feature may be in direct contact with each other, or the first feature and the second feature may be in indirect contact with each other via an intermediate medium. Furthermore, when a first feature is "on," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or it may simply mean that the first feature is higher in horizontal height than the second feature. When a first feature is "below," "below," or "lower" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or it may simply mean that the first feature is lower in horizontal height than the second feature.

[0037] In conventional endoscopes, a locking hand wheel is usually used to adjust the lens of the endoscope. During this operation, the endoscope locking device has many problems, such as insufficient stability when manipulating the lens, low positioning precision, and inflexible bending angle.

[0038] In view of this, the present application provides a locking device for an endoscope, the locking device including a first rotating wheel, a first rotating shaft, and a brake disc, and a brake disc driving module, wherein the first rotating wheel is connected to a first end of the first rotating shaft, and a first traction disc is disposed at a position close to a second end of the first rotating shaft, the first rotating wheel can control the rotation of the first rotating shaft and move the first traction disc to rotate, and the rotation of the first traction disc adjusts the first traction thread, thereby adjusting the observation angle of the endoscope in a first dimension, the brake disc is disposed on at least one side of the outer circumferential surface of the first rotating shaft, and the brake disc driving module can adjust the degree of fastening (degree of fastening / loosening) between the brake disc and the first rotating shaft or the outer circumferential surface of the first traction disc, so as to make the rotation damping of the first rotating shaft fall within a first predetermined damping range, and further provide the first rotating shaft with a desired damping. By providing damping to the rotation of the above-mentioned first rotating axis, the first traction disk performs inward / outward control on the first traction sled, and further realizes adjustment of the angle and position of the endoscope lens by the first traction sled, which is advantageous for bending and fixing the curved portion of the distal end of the endoscope at any angle, and finally realizes a combination of flexibility and stability in the positioning angle of the endoscope lens during the operation of the endoscope, thereby improving the efficiency of surgery.

[0039] Below, several optional implementation forms of the present disclosure are introduced with reference to the drawings, and as can be understood by those skilled in the art, the implementation forms below are merely illustrative and are not exhaustively listed, and based on these implementation forms, those skilled in the art can make substitutions, splicing or combinations of any features or any examples, which should still be regarded as the disclosure content of the present disclosure.

[0040] Hereinafter, the first embodiment of the present application will be described in detail with reference to Figures 1A to 7. The advantage of this embodiment is that it can provide a continuous and stable operation feel and has high adjustment reliability.

[0041] As shown in FIG. 1A, the left side of FIG. 1A is the first end of the locking device 10, i.e., the end of the rotating wheel module 100, and the right side of FIG. 1A is the second end of the locking device 10, i.e., the end of the brake disc 300. In this figure, the brake disc drive module 500 cannot be displayed due to the viewing angle, and can be understood by referring to FIG. 1B and the subsequent schematic diagrams. FIG. 1B shows the structure of the brake disc drive module 500. FIG. 2A is a structural schematic diagram of the locking device 10 in FIG. 1A at a different viewing angle, i.e., at a viewing angle where the end of the brake disc 300 faces out of the paper, and in this figure, the locking device 10 is in an unlocked state. FIG. 3 is a structural schematic diagram of the left side of the locking device 10 in FIG. 2A, and FIG. 4 is a planar structural schematic diagram of the locking device 10 in FIG. 2A.

[0042] 1A and 1B, the locking device 10 includes the following modules or components: a rotating wheel module 100, a brake disc 300, and a brake disc drive module 500.

[0043] To roughly explain the arrangement of the above-mentioned components, the rotating wheel module 100 is located at a first end (left side in FIG. 1A) of the locking device 10, the brake disc 300 is located at a second end (right side in FIG. 1A) of the locking device 10, and the brake disc drive module 500 is similarly located at the second end (right side in FIG. 1A) of the locking device 10 and installed at one end of the brake disc 300. The brake disc drive module 500 realizes connection with the brake disc 300 via a fastener 510 and can further apply a biasing force to the brake disc 300.

[0044] In this embodiment, the locking device 10 further includes a module called a handle. Although this module is not shown in the drawings of this application, those skilled in the art can easily understand the use of this module as a necessary module during the operation of the endoscope. The handle is actually the body of the locking device 10 and provides a positioning base for other components. The handle is actually the handle in the overall structure of the endoscope, and is generally designed as two interlocking covers that can be removed according to the need for assembly and repair. In this embodiment, the handle is a hollow circular shell made of plastic material and is used to provide mounting positions for the rotating wheel module 100 and the brake disc 300. In this embodiment, the modules related to the body and the locking device 10 are mainly the first clamping post and the second clamping post, which realize the fixing of the brake disc 300 in the body of the locking device 10.

[0045] Next, the rotating wheel module 100 will be introduced, which includes a first rotating wheel module 110, a second rotating wheel module 130 and an isolation sheet 150.

[0046] Each component will be introduced in detail below.

[0047] The rotating wheel module 100 includes a first rotating wheel module 110, a second rotating wheel module 130 and an isolation sheet 150, the first rotating wheel module 110 includes a first rotating wheel 111, a first rotating shaft 113 and a first traction disk 115, and the second rotating wheel module 130 includes a second rotating wheel 131, a second rotating shaft 133 and a second traction disk 135.

[0048] The first rotating wheel 111 is connected to a first end of the first rotating shaft 113 and serves as an operating handle installed on the first rotating shaft 113. In this embodiment, the first rotating wheel 111 is installed on the first end of the first rotating shaft 113 (the left side of FIG. 1A), the first traction disc 115 is installed on the other end of the first rotating shaft 113, i.e., the second end of the first rotating shaft 113 (the right side of FIG. 1A), the second rotating wheel 131 is connected to a first end of the second rotating shaft 133, and the second rotating shaft 133 is coaxial with the first rotating shaft 113. In this embodiment, the most possible arrangement is that the second rotating shaft 133 is fitted into the outer circumferential surface of the first rotating shaft 113 to achieve the above-mentioned coaxiality, and the second traction disc 135 is installed at a position near the second end of the second rotating shaft 133. As is clear from the figure, the second traction disc 135 is installed at a position closer to the first end than the first traction disc 115 (to the right in FIG. 1A). In addition, the first rotating wheel 111 is located at a position closer to the first end than the second rotating wheel 131, and the first rotating wheel 111 is provided with a protrusion extending to the second end, and the second rotating wheel 131 is provided with a corresponding groove, so that the protrusion fits 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 may completely adopt other different forms, for example, an arrangement in which both shafts face each other from both ends. If such an arrangement is adopted, the layout of the entire locking mechanism is obviously different from this embodiment, but the principle is not essentially different.

[0049] After introducing the structure and connection relationship of each of the rotating shafts and rotating wheels, the structure of the traction disc will be introduced. Since the second traction disc 135 has a structure similar to that of the first traction disc 115, the structure of the second traction disc 135 may be referred to the description of the first traction disc 115 and will not be described here.

[0050] As shown in Fig. 5, Fig. 5 is a structural schematic diagram of the first traction disc 115 in the locking device 10. The figure also shows a first rotating shaft 113 connected to the first traction disc 115. Hereinafter, the specific structure of the first traction disc 115 will be described in detail with reference to Fig. 5, and Fig. 1A can also be referred to at the same time.

[0051] The first traction disk 115 is installed on the second end of the first rotating shaft 113, and the first traction disk 115 has a position for fixing the first traction sled 1153, and the first rotating wheel 111 controls the rotation of the first rotating shaft 113 to move the first traction disk 115 to rotate, and the rotation of the first traction disk 115 adjusts the extension distance of the first traction sled 1153, and the first traction sled 1153 can traction the lens of the endoscope, thereby adjusting the observation angle of the endoscope in the first dimension and making it an appropriate angle.

[0052] As shown in FIG. 5 , the first traction disc 115 includes a first traction disc groove 1151 , a first traction sled 1153 , a first traction hole 1155 and a first traction disc center hole 1157 .

[0053] The first traction disc 115 is 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 thread 1153 enters the first traction disc 115 through the first traction disc groove 1151, the first traction disc 115 has a symmetrical bidirectional first traction hole 1155 on the circumferential surface of the first traction disc 115, the symmetrical first traction hole 1155 is used for receiving and reeling out the first traction thread 1153, and the first traction disc center hole 1157 is located at the disc center position of the first traction disc 115, which is fitted and fixed with the first rotating shaft 113, and this structure mounts the first traction disc 115 to the second end of the first rotating shaft 113.

[0054] One end of the first traction sled 1153 is fixed to the first traction disk 115 and can be inserted into the first traction disk groove 1151. The first traction disk 115 can be rotated to adjust the extension and retraction of the first traction sled 1153, thereby adjusting the observation angle in the first dimension of the endoscope. Specifically, the rotation of the first traction disk 115 can control the winding and retraction of the first traction sled 1153 in the first dimension, thereby adjusting its extension distance. As a possible arrangement form, in this embodiment, the first traction sled 1153 is composed of two traction threads, and the observation angle in the first dimension is in the up and down direction. The two traction threads of the first traction sled 1153 respectively control the observation angle in the up and down direction of the endoscope. In this embodiment, the configuration and control dimension of the above first traction sled 1153 are merely schematic, and do not exclude other possible configurations and control forms for the traction sled.

[0055] The second traction disk 135 has a similar structure to the first traction disk 115, except that it is installed at a position closer to the second end of the second rotating shaft 133. The second traction disk 135 is used to fix the second traction sled, and the configuration of the second traction sled is similar to that of the first traction sled 1153. The second traction disk 135 can be rotated to adjust the extension and retraction of the second traction sled, thereby adjusting the observation angle in the second dimension of the endoscope, for example, the observation angle in the left-right direction of the endoscope; specifically, the rotation of the second traction disk 135 can control the winding and retraction of the second traction sled in the second dimension, thereby adjusting its extension distance.

[0056] In this embodiment, the first traction sled 1153 and the second traction sled are both embedded in the endoscope catheter, and the two ends of each traction sled are respectively positioned at the curved end and the traction disk end of the endoscope catheter, with one end connected to the corresponding traction disk and the other end fixed in the catheter. Generally, when one end of a traction sled is pulled by the corresponding traction disk, when the traction disk rotates, the flexibility of the catheter will move the bendable part of the catheter distal end to rotate through the traction sled, and further move the lens end of the endoscope to rotate in a certain dimension (first or second), allowing the lens of the endoscope to be deflected at a certain angle, and changing the viewing angle of observation.

[0057] Having introduced the rotating wheel module 100 above, the brake disc 300 will now be introduced.

[0058] 2A and 2B, which are schematic structural diagrams of the locking device 10 in FIG. 2A in an unlocked state, and FIG. 2A is a schematic structural diagram of a brake disc 300. FIG.

[0059] The brake disc 300 includes a brake disc body 310 and a protrusion 330 .

[0060] The brake disc body 310 is a frame structure that clamps the circumferential surface of the first rotating shaft 113 or the first traction disc 115, and a brake disc opening that can be opened up and down is provided in the frame structure, through which the circumferential surface of the first rotating shaft 113 or the first traction disc 115 is clamped, and a protrusion 330 is provided at the base position of the frame structure of the brake disc body 310, and the brake disc body 310 is fixed inside the body of the locking device 10 by the protrusion 330. In this embodiment, specifically, the protrusion is clamped between the first clamping pillar and the second clamping pillar of the body, thereby realizing the brake disc body 310 being fixed inside the body of the locking device 10.

[0061] The brake disc body 310 includes an upper brake disc disc 311 , a lower brake disc disc 313 , a brake disc opening 315 and a gap 317 .

[0062] Please refer to Figures 2A, 2B, 3 and 4, where Figure 3 is a left side view corresponding to the locking device in Figure 2A, and Figure 4 is a plan view corresponding to the locking device in Figure 2A. The entire brake disc body 310 has a disc-shaped frame structure, and the brake disc body 310 of the disc-shaped frame structure is composed of an upper brake disc disc 311 of a semicircular frame and a lower brake disc disc 313 of a semicircular frame. The upper brake disc disc 311 and the lower brake disc disc 313 are connected by a protrusion 330 at the base of the brake disc body 310 facing the brake disc opening 315. The protrusion 330 provides a positioning base for the upper brake disc disc 311 and the lower brake disc disc 313 to open up and down. A gap 317 is provided at this position to increase the elastic deformation space. A corresponding brake disc opening 315 is formed between the upper brake disc disc 311 and the lower brake disc disc 313. The brake disc opening 315 clamps the circumferential surface of the first rotating shaft 113 or the first traction disc 115, so that the first rotating shaft 113 and the first traction disc 115 obtain a clamping force. In the frame structure of the brake disc body 310, a through hole is further installed on one side of the brake disc opening 315, which is used for connecting to the brake disc driving module 500 and working in cooperation with it.

[0063] In this embodiment, as a specific embodiment, specifically, the brake disc body 310 of the frame structure has an upper brake disc disc 311 and a lower brake disc disc 313 at one end of the frame structure installed on the outer circumferential surface of the first rotating shaft 113 (the right side of FIG. 1A), and an upper brake disc disc 311 and a lower brake disc disc 313 at the other end of the frame structure installed on the outer circumferential surface of the second rotating shaft 133 (the middle of FIG. 1A). In addition, the upper brake disc disc 311 and the lower brake disc disc 313 are installed opposite to the outer circumferential surfaces of the respective rotating shafts, and the upper brake disc disc 311 is located at an upper position (upper position of FIG. 2A) of the outer circumferential surface of each rotating shaft, and the lower brake disc disc The brake disc 313 is located below the outer circumferential surface of each rotating shaft (below in Figure 2A), and surface grain is provided on the contact surfaces between the upper brake disc disc 311 and the lower brake disc disc 313 and each rotating shaft to increase friction force, and through holes are provided on the same side of the upper brake disc disc 311 and the lower brake disc disc 313, and on the same side as the brake disc opening 315 (the left side in Figure 2A), through the through holes to realize the connection between the brake disc drive module 500 and the brake disc body 310; in this embodiment, specifically, the fasteners of the brake disc drive module 500 realize the connection through the through holes at the upper end opening 3151 of the brake disc opening and the lower end opening 3153 of the brake disc opening.

[0064] As a possible embodiment of this embodiment, as shown in FIG. 2A , the protrusion 330 is plate-shaped and is located on the same side (the right side in FIG. 2A ) of the upper brake disc disc 311 and the lower brake disc disc 313 opposite the brake disc opening 315, and the protrusion 330 forms an opening toward the brake disc body 310, clamps the upper brake disc disc 311 and the lower brake disc disc 313 from both sides, and provides positioning for the upper brake disc disc 311 and the lower brake disc disc 313.

[0065] As another possible embodiment of this embodiment, as shown in FIG. 6, FIG. 6 is a structural schematic diagram of another connection form between the upper brake disc disc 311 and the lower brake disc disc 313 of the locking device 10 in FIG. 2A. As shown in FIG. 6, the connection form between the upper brake disc disc 311 and the lower brake disc disc 313 is a hinge connection, the protrusion 330 is axial, the axial protrusion 330 is inserted into the hinge connection portion between the upper brake disc disc 311 and the lower brake disc disc 313, and the axial protrusion 330 provides a rotation axis for the upper brake disc disc 311 and the lower brake disc disc 313.

[0066] Next, the brake disc drive module 500 will be introduced, and for ease of understanding, reference may be made to the schematic in FIG. 1B, and also to FIG. 2A.

[0067] As shown in FIG. 1B, the brake disc drive module 500 includes a fastener 510 and a gripper 530.

[0068] The fastener 510 is installed in the frame structure of the brake disc body 310 and located at the position of the brake disc opening 315. The fastener 510 is specifically installed in the through hole of the brake disc body 310. The fastener 510 connects the upper disc 311 of the brake disc with the lower disc 313 of the brake disc. One end of the fastener 510 is provided with a gripper 530, which extends outside the shell of the locking device 10 and is used by the operator of the locking device 10 to rotate the fastener 510. In a specific embodiment, the gripper 530 is a knob, and the knob In the radial direction perpendicular to the first rotating shaft 113, the fastener 510 has a predetermined length significantly larger than the radius of the first rotating wheel 111. The fastener 510 is rotated by rotating the knob, and the fastener 510 rotates in the through hole in the brake disc body 310 to adjust the biasing force applied to the brake disc 300, thereby changing the clamping force applied by the brake disc 300 to the first rotating shaft 113 and the first traction disc 115, so that the rotation damping of the first rotating shaft 113 falls within a first predetermined damping range, that is, providing the necessary damping for the rotation of the first rotating shaft 113. Here, the first predetermined damping range is not specifically limited in the embodiment of the present application, and can be adaptively adjusted according to the actual usage situation of the locking device 10.

[0069] For ease of understanding, the fastener 510 will now be introduced in detail. The fastener 510 includes two implementations, which will be introduced respectively below.

[0070] A first implementation of fastener 510 includes a stud 511 , an upper nut 513 and a lower nut 515 .

[0071] The stud 511 is the main body of the fastener 510, and is installed so as to pass through a through hole in the brake disc body 310. At least two thread segments with opposite rotation directions are installed on the outer circumferential surface of the stud 511. An upper nut 513 and a lower nut 515 are further installed to be coupled with the stud 511, where the upper nut 513 is fixed to the upper side of the upper end opening 3151 of the brake disc opening, and the lower nut 515 is fixed to the lower side of the lower end opening 3153 of the brake disc opening. The upper nut 513 and a first segment of the stud 511 form a first thread pair, and the lower nut 515 and a second segment of the stud 511 form a second thread pair, and the first thread pair and the second thread pair have opposite thread rotation directions. By rotating the stud 511, the biasing force applied to the brake disc 300 can be adjusted. Since the first and second screw pairs have different screw rotation directions, when the stud 511 rotates in one direction, the upper nut 513 and the lower nut 515 move along the axial direction of the stud 511 in a direction in which they approach each other, or vice versa. In this way, the brake disc opening 315 of the brake disc body 310 realizes gripping of the first rotating shaft 113 and the second rotating shaft 133, thereby increasing or decreasing the damping received by the rotating shafts.

[0072] In this embodiment, as another possible embodiment, an internal thread is provided at the opening position of the frame structure of the brake disc body 310, which is engaged with the stud 511 in the through hole, and the upper end opening 3151 of the brake disc opening and the first segment of the stud 511 are engaged (screwed) to form a third thread pair, and the lower end opening 3153 of the brake disc opening and the second segment of the stud 511 are engaged (screwed) to form a fourth thread pair, and the third thread pair and the fourth thread pair have opposite screw rotation directions. As the stud 511 rotates, the surface thread of the stud 511 engages with the upper end opening 3151 of the brake disc opening and the lower end opening 3153 of the brake disc opening, thereby providing or reducing a biasing force to the brake disc 300, and the biasing principle is similar to that of the above-mentioned embodiment using a nut.

[0073] With the above two types of implementation, when the endoscope is in operation, the gripping portion 530 is rotated to move the stud 511 so as to rotate synchronously, thereby realizing the screwing operation between the stud 511 and the upper nut 513 and the lower nut 515 (first type of implementation), or the screwing operation between the stud 511 and the upper end opening 3151 of the brake disc opening and the lower end opening 3153 of the brake disc opening (second type of implementation), and further realizing the adjustment of the biasing force applied to the brake disc main body 310. The brake disc main body 310 has a frame structure and is arranged vertically. The brake disc body 310 is clamped to the outer circumferential surfaces of the first rotating shaft 113 and the second rotating shaft 133 by adjusting the biasing force applied to the brake disc body 310, so that the clamping force applied to the first rotating shaft 113 and the second rotating shaft 133 by the brake disc body 310 can be changed, so that the rotation damping of the first rotating shaft 113 is within a first predetermined damping range, and the rotation damping of the second rotating shaft 133 is within a second predetermined damping range, that is, damping required for the rotation of the first rotating shaft 113 and the second rotating shaft 133 is provided. In general, the locking device 10 can have an unlocked state and a locked state, and can provide different degrees of damping when in an intermediate position between the unlocked state and the locked state. Here, the second predetermined damping range is not specifically limited in the present application, and can be adaptively adjusted according to the actual usage situation of the locking device 10. The first predetermined damping range may be the same as the second predetermined damping range, or may be different.

[0074] The operation process of the locking device 10 will be described in detail below in conjunction with FIGS. 2A, 4 and 7. FIG.

[0075] FIG. 2A shows a schematic diagram of the locking device 10 in an unlocked state, FIG. 4 shows the process of switching the locking device 10 from the unlocked state to the locked state (FIG. 4 is a plan view corresponding to the locking device in FIG. 2A), and FIG. 7 shows a schematic diagram of the locking device 10 in a locked state.

[0076] 2A and 7 are structural schematic diagrams of the locking device 10 in FIG. 1A after the locking device 10 is rotated clockwise, with the second end of the locking device 10, i.e., the end of the brake disc 300, facing out of the plane of the paper. Hereinafter, the operation process of the locking device 10 will be briefly introduced with reference to FIGS. 2A, 4 and 7, with an emphasis on the switching process between the locked state and the unlocked state.

[0077] When it is necessary to lock the endoscope locking device 10, the knob of the gripping portion 530 is rotated counterclockwise by a certain angle (from position B to position A as shown in FIG. 4), whereby the knob of the gripping portion 530 moves the stud 511 to rotate counterclockwise, so that a first screw pair is formed between the upper nut 513 and the first segment of the stud 511, and a second screw pair is formed between the lower nut 515 and the second segment of the stud 511. The first screw pair and the second screw pair have opposite screw rotation directions. Therefore, when the stud 511 rotates counterclockwise, the upper nut 513 and the lower nut 515 move in the axial direction of the stud 511 toward each other due to the screwing action of the surface thread of the stud 511 and the upper nut 513 and the lower nut 515. Since the frame 515 is fixed to the inner surface of the through hole of the brake disc body 310, the opening size of the brake disc opening 315 is gradually reduced, the clamping force applied to the first rotating shaft 113 and the second rotating shaft 133 of the brake disc body 310 of this frame structure is gradually increased, and the damping of the rotation of the first rotating shaft 113 and the second rotating shaft 133 is gradually increased, and the first rotating shaft 213 and the second rotating shaft 233 gradually stop rotating due to the damping effect, the first traction disc groove 2151 and the second traction disc groove 2351 stop inserting and withdrawing and winding into the left-right and up-down traction threads, the up-down and left-right traction lengths of each traction thread in the catheter are fixed, and the locking device 10 enters a locked state, that is, the angle and direction of the endoscope lens are locked. 2A and 7, the above process is a process of changing from FIG. 2A to FIG. 7, and it can be seen that when the upper brake disc disc 311 and the lower brake disc disc 313 are in the position of FIG. 2A, the brake disc opening 315 formed therebetween is large, and when they are in the position of FIG. 7, the brake disc opening 315 formed therebetween is small.

[0078] When it is necessary to unlock the endoscope locking device 10, the knob of the gripping portion 530 is rotated clockwise by a certain angle (from position A to position B as shown in FIG. 4), whereby the gripping portion 530 moves the stud 511 to rotate. Due to the screwing action between the surface thread of the stud 511 and the upper nut 513 and the lower nut 515, the upper nut 513 and the lower nut 515 move along the axial direction of the stud 511 in the direction in which they move apart, so that the opening degree of the brake disc opening 315 gradually increases, and the clamping force applied to the first rotating shaft 113 and the second rotating shaft 133 of the brake disc body 310 of the frame structure gradually decreases, and further, the damping of the rotation of the first rotating shaft 113 and the second rotating shaft 133 gradually decreases and disappears, and the first rotating shaft 213 and the second rotating shaft 233 increase their rotation when the damping gradually decreases, and when the damping disappears, the locking device 10 leaves the locked state and enters the unlocked state. At this time, the first traction disc 215 and the second traction disc 235 can be flexibly rotated with the operation of the first rotating wheel 211 and the second rotating wheel 231 by the operator, and the traction threads associated with the traction discs can be flexibly wound and retracted by the traction of the traction discs, thereby flexibly adjusting the angle of the lens of the endoscope. Referring to Figures 2A and 7, the above process is a process of changing from Figure 7 to Figure 2A, and it can be seen that when in the position of Figure 7, the brake disc opening 315 formed between the upper disc 311 of the brake disc and the lower disc 313 of the brake disc is small, and when in the position of Figure 2A, the brake disc opening 315 formed between them is large.

[0079] Between the above-mentioned locked and unlocked positions, the grip 530 can be operated to place it at different positions between A and B, and the locking device 10 can be put into different damping states, thereby obtaining different tightening degrees of the rotating wheel adjustment according to the rotation needs of the rotating wheel. The locking device 10 can be set to an appropriate state as needed when adjusting the endoscope, and when unlocked, the lens angle of the endoscope can be freely adjusted by the rotating wheel, and when locked, the endoscope is fixed, and the lens angle does not change, and when in a damping state between the above-mentioned two, the operator can feel the required rotating wheel rotation, which makes it easier to operate.

[0080] As with the first embodiment, as a preferred embodiment, there may obviously be other variations on its basic principle. For example, the rotating wheel module 100 only includes the first rotating wheel module, i.e. the locking device 10 can adjust the angle of the endoscope in only one dimension. Of course, there are also several other possible variations. For example, the first rotating wheel 111 and the second rotating wheel 131 described above are located at opposite positions, rather than at the same end as in this embodiment.

[0081] Corresponding to the first embodiment described above, a second embodiment of the present application provides a locking device, and the purpose of providing this embodiment is to disseminate the principle of the first embodiment to other possible applications without limiting it to endoscopes.

[0082] The structure and operation process will be described below with reference to Figures 8 to 10, and Figures 1A to 7 in the first embodiment can also be referenced. In this embodiment, for ease of understanding, parts having the same functions as those in the first embodiment are given the same names as far as possible. Although the first and second embodiments have common novelties, there are still significant differences. Therefore, the description of this embodiment is based on the names provided in this embodiment and does not necessarily correspond to the first embodiment.

[0083] The locking device 10' is generally applied to a detection scene, and in combination with the description process of the first embodiment, the first traction disc 115 and the second traction disc 135 in the rotating wheel module 100 are replaced with the first function disc 115' and the second function disc 135' to realize various possible adjustment functions. It should be understood that the structure of the first function disc 115' and the second function disc 135' needs to be structurally adjusted according to the function and application scene of the locking device 10'. This embodiment is not specifically limited.

[0084] The locking device 10 ′ includes a first rotating wheel 111 , a first rotating shaft 113 , a brake disc 300 , and a brake disc drive module 500 .

[0085] The first rotating wheel 111 is connected to a first end of the first rotating shaft 113, and a first functional disk 115' is located at a position closer to the second end of the first rotating shaft 113, and the first rotating wheel 111 can control the rotation of the first rotating shaft 113 and move the first functional disk 115' to rotate, and the rotation of the first functional disk 115' adjusts the first traction sled 1153, thereby adjusting the observation angle of the endoscope in a first dimension.

[0086] The brake disc 300 is generally a frame structure that clamps the circumferential surface of the first rotating shaft 113 or the first functional disc 115', and the frame structure has a brake disc opening 315 that opens it upward and downward.

[0087] The brake disc drive module 500 has a fastener 510, which is installed at one end of the brake disc opening 315, and the fastener 510 can adjust the biasing force applied to the brake disc 300, thereby changing the clamping force applied by the brake disc 300 to the first rotating shaft 113, the first functional disc 115', thereby making the rotational damping of the first rotating shaft 113 fall within a first predetermined damping range, i.e., providing the required damping for the rotation of the first rotating shaft 113.

[0088] The locking device 10' provided in the second embodiment may further include other necessary structures, such as a detection device, a display device, etc., for combination with the locking device. It should be understood that the operation process of the locking device in this embodiment is similar to that in the first embodiment, so please refer to the first embodiment and the description of this embodiment will be omitted. It should be emphasized that Figures 8 to 10 appear to have the same structure as Figures 1A, 2A, and 5 in the first embodiment, and merely exemplify that the members in the second embodiment have the same function as the members in the first embodiment, but do not necessarily limit that the structures are the same. It should be understood that the members having the same function in the second embodiment and the first embodiment may have the same structure or different structures.

[0089] A third embodiment of the present application provides a locking device for use with another endoscope.

[0090] Hereinafter, the third embodiment of the present application will be described in detail in combination with Figures 11 to 16. This embodiment has essentially the same principle as the first and second embodiments, that is, both provide the desired damping for the rotation of the rotating shaft by adjusting the brake disc installed on at least one side of the outer circumferential surface of the rotating shaft (first rotating shaft and / or second rotating shaft) or the traction disc (or function disc). However, in the concrete realization of the brake disc, the third embodiment adopts a different structure, and the advantage of this structure is that it is structurally simpler.

[0091] As shown in Fig. 11, the left side of Fig. 11 is the second end of the locking device 210, i.e., the brake disc 2300 end, and the right side of Fig. 11 is the first end of the locking device 210, i.e., the rotating wheel module 2100 end, and in this figure, the locking device 210 is in a locked state. Fig. 12 is a structural schematic diagram of the locking device 210 in Fig. 11 in an unlocked state. Fig. 13 is a structural schematic diagram of the locking device 210 in Fig. 11 in a locked state. Figs. 12 and 13 are both structural schematic diagrams at a viewing angle in which the second end of the locking device 210, i.e., the brake disc 2300 end, of the locking device 210 in Fig. 11 is turned counterclockwise and then faces out of the plane of the paper.

[0092] As shown in FIG. 11, the locking device 210 includes modules or components, such as a rotating wheel module 2100, a brake disc 2300, a brake disc driving module 2500, and a handle 2700, as follows.

[0093] The arrangement of the above members can be roughly described as follows: the brake disc 2300 is disposed near the second end of the locking device 210 (left side in FIG. 11), the brake disc drive module 2500 is located at approximately the middle position of the locking device 210 (middle in FIG. 11), and the rotating wheel module 2100 is located at the first end of the locking device 210 (right side in FIG. 11). The brake disc 2300 and the brake disc drive module 2500 are connected by a drive member body 2510. The brake disc drive module 2500 provides damping in the rotational direction to the rotating wheel module 2100 via the brake disc 2300.

[0094] Handle 2700, in this embodiment, is actually the main body of locking device 210 and provides a positioning base for each of the other components. It is called a handle because it is actually the handle in the overall structure of the endoscope, and its specific structure will be described later.

[0095] The rotating wheel module 2100 includes a first rotating wheel module 2110 , a second rotating wheel module 2130 , an isolation sheet 2150 , and an O-shaped seal ring 2170 .

[0096] Each component will be introduced in detail below.

[0097] The rotating wheel module 2100 includes a first rotating wheel module 2110, a second rotating wheel module 2130, an isolation sheet 2150 and an O-shaped seal ring 2170, the first rotating wheel module 2110 includes a first rotating wheel 2111, a first rotating shaft 2113 and a first traction disk 2115, and the second rotating wheel module 2130 includes a second rotating wheel 2131, a second rotating shaft 2133 and a second traction disk 2135.

[0098] The first rotating wheel 2111 is connected to a first end of the first rotating shaft 2113 and serves as an operating handle installed on the first rotating shaft 2113. In this embodiment, the first rotating wheel 2111 is installed on the first end of the first rotating shaft 2113 (the right side in FIG. 11), the first traction disk 2115 is installed on the other end of the first rotating shaft 2113, i.e., the second end of the first rotating shaft 2113 (the left side in FIG. 11), the second rotating wheel 2131 is connected to a first end of the second rotating shaft 2133, and the second rotating shaft 2133 is coaxial with the first rotating shaft 2113. In this embodiment, the most possible arrangement is that the second rotating shaft 2133 is fitted into the outer circumferential surface of the first rotating shaft 2113 to achieve the above-mentioned coaxiality, and the second traction disk 2135 is installed at a position near the second end of the second rotating shaft 2133. As can be seen from the figure, the second traction disc 2135 is installed at a position closer to the first end (to the right in FIG. 11) than the first traction disc 2115. Also, an O-shaped seal ring 2170 is fitted on the first rotating shaft 2130, and the O-shaped seal rings 2170 are in a total of two groups, with two in each group, and are arranged adjacent to each other, where the O-shaped seal ring 2170-1 of the first group is adjacent to the first traction disc 2115 and is located at a position closer to the second end (to the left in FIG. 11) than the first rotating shaft 2113, and the O-shaped seal ring 2170-2 of the second group is located at a position closer to the second traction disc 2115 and is located at a position closer to the second end (to the left in FIG. 11) than the first rotating shaft 2113. 2135 and closer to the first end than the second rotating shaft 2133 (middle of FIG. 11), and the first rotating wheel 2111 is located closer to the first end than the second rotating wheel 2131, the first rotating wheel 2111 is provided with a protrusion extending to the second end, and the second rotating wheel 2131 is provided with a corresponding groove, and the protrusion is fitted into the groove, thereby shortening the axial installation dimensions of the first rotating wheel 2111 and the second rotating wheel 2131. Naturally, the coaxial arrangement of the first rotating shaft 2113 and the second rotating shaft 2133 can completely adopt other different forms, for example, an arrangement in which both shafts face each other from both ends, and if such an arrangement is adopted, the layout of the entire locking device will be clearly distinguished from this embodiment, but the principle is not essentially different.

[0099] Referring to FIG. 16, the first traction disk 2115 has a position for fixing the first traction sled 21153, and by rotating the first traction disk 2115, the extension distance of the first traction sled 21153 can be adjusted, and the first traction sled 21153 can traction the lens of the endoscope, thereby causing the endoscope to be at an appropriate angle in a dimension controlled by the first traction sled 21153.

[0100] Figure 16 shows a structural diagram of the first traction disc 2115. The figure also shows a first rotating shaft 2113 connected to the first traction disc 2115. Hereinafter, the specific structure of the first traction disc 2115 will be described in detail in combination with Figure 16, and Figure 11 can be referred to at the same time.

[0101] As shown in FIG. 16 , the first traction disc 2115 includes a first traction disc groove 21151 , a first traction sled 21153 , a first traction hole 21155 and a first traction disc central hole 21157 .

[0102] The first traction disc 2115 is a hollow disc body structure, the first traction disc groove 21151 is located on the outer circumferential surface of the first traction disc 2115, the first traction sled 21153 enters the first traction disc 2115 through the first traction disc groove 21151, the first traction disc 2115 has symmetrical bidirectional first traction holes 21155 on the circumferential surface of the first traction disc 2115, the symmetrical first traction holes 21155 are used to receive and reel out the first traction sled 21153, and the first traction disc center hole 21157 is located at the disc center position of the first traction disc 2115, which is fitted and fixed with the first rotating shaft 2113, and this structure mounts the first traction disc 2115 to the second end of the first rotating shaft 2113.

[0103] One end of the first traction sled 21153 is fixed to the first traction disk 2115 and can be immersed in the first traction disk groove 21151. The extension and retraction of the first traction sled 21153 can be adjusted by rotating the first traction disk 2115, thereby adjusting the observation angle of the endoscope in the first dimension; specifically, the rotation of the first traction disk 2115 can control the winding and retraction of the first traction sled 21153 in the first dimension, thereby adjusting its extension distance.

[0104] The second traction disk 2135 has a similar structure to the first traction disk, except that it is located closer to the second end of the second rotating shaft 2133. The second traction disk 2135 is used to fix the second traction sled, and the second traction sled can be adjusted to retract or extend by rotating the second traction disk 2135, thereby adjusting the observation angle in the second dimension of the endoscope; specifically, the rotation of the second traction disk 2135 can control the winding and retraction of the second traction sled in the second dimension, thereby adjusting its extension distance. The traction sled is embedded in the endoscopic catheter, and the two ends of the traction sled are respectively positioned at the curved end and the traction disk end of the endoscopic catheter, with one end connected to the traction disk and the other end fixed in the catheter. Generally, one end of a traction sled is pulled by the traction disk, and then when the traction disk rotates, the flexibility of the catheter will move the bendable part of the catheter distal end to rotate through the traction sled, and further move the lens end of the endoscope to rotate in a certain dimension (up and down or left and right), allowing the lens of the endoscope to be deflected at a certain angle, and changing the viewing angle of observation.

[0105] An isolation sheet 2150 is installed in the axial gap between the first traction disk 2115 and the second traction disk 2135 to isolate them.

[0106] The brake disc 2300 and the brake disc driving module 2500 will be introduced below, and since the two are closely related, there will be cross-references in the introduction process. Please refer to FIG. 14 and FIG.

[0107] The brake disc 2300 includes a brake disc body 2310, a brake disc groove 2330, an arc-shaped through hole 2350, and a positioning hole 2370. The brake disc drive module 2500 includes a drive member 2510 and a shift lever 2530 (see FIG. 15). The drive member 2510 is located near the second end of the brake disc drive module 2500 (left side of the center in FIG. 11), and the shift lever 2530 is located at the first end of the brake disc drive module 2500 (right side of the center in FIG. 11). The lower end of the shift lever 2530 is fixedly connected to the outer circumferential surface of the drive member body 2515 of the drive member 2510. The shift lever 2530 has a predetermined length significantly larger than the diameter of the drive member 2510, and the upper end of the shift lever 2530 extends radially (upper end in FIG. 11), providing an operating surface that is easy to shift. The structure of the drive member 2510 will be introduced in detail below after the structure of the brake disc 2300 is introduced.

[0108] The handle 2700 is named after the handle of an endoscope, and corresponds to the body providing the positioning base in this application, and the handle 2700 is generally designed with two mutually engaging cover bodies which can be detached according to the need for assembly and repair, and in the endoscope locking device of this application, the relevant structure provided by the body is mainly the fixed post 2710. In this embodiment, the handle 2700 is a hollow circular shell made of plastic material, and the fixed post 2710 is located on the inner surface of the handle 2700 shell and is used to provide an installation position for the brake disc 2300, and in this embodiment, the fixed post 2710 is a solid plastic cylinder, and the brake disc 2300 is rotatably fitted to the fixed post 2710 through its positioning hole 2370, thereby obtaining a rotatable installation position.

[0109] 14 shows a structural diagram of the brake disc 2300. Hereinafter, the brake disc 2300 will be introduced in detail with reference to FIG. 14, and reference can be made to FIG. 11 and FIG.

[0110] As described above, the brake disc 2300 includes the brake disc body 2310 , the brake disc groove 2330 , the arc-shaped through hole 2350 and the positioning hole 2370 .

[0111] In this embodiment, the brake disc 2300 has an overall arc plate structure. The brake disc 2300 is installed on at least one side of the outer circumferential surface of the first rotating shaft 2113. A brake disc groove 2330 is provided at the lower end of the brake disc body 2310. The inner surface of the brake disc groove 2330 is the bonding surface of the brake disc 2300 that contacts the outer circumferential surface of the first rotating shaft 2130 and / or the outer circumferential surface of the second rotating shaft 2140. 113 and / or the outer circumferential surface of the second rotating shaft 2133, surface grooves are provided to increase frictional force, and the bonding surfaces of the brake disc groove 2330 and the first rotating shaft 2113 and the second rotating shaft 2133 come into contact with each other via an O-shaped seal ring 2170, and the surface grooves in the brake disc groove 2330 press the O-shaped seal ring 2170 by moving the brake disc body 2310, thereby stopping the rotation of the first rotating shaft 2113 and the second rotating shaft 2133. A positioning hole 2370 is provided at one end of the arc surface of the brake disc body 2310, and the positioning hole 2370 is rotatably fitted into a fixed post 2710 of the handle 2700, and the brake disc body 2310 rotates around the positioning hole 2370 to realize the fixed shaft oscillation. An arc-shaped through hole 2350 is provided on the arc surface of the brake disc body 2310, and the arm pillar 2519 is inserted into the arc-shaped through hole 2350 and can slide within the arc-shaped through hole 2350. In order to be synchronously attached to the first rotating shaft 2113 and the second rotating shaft 2133, the brake disc body 2310 is arranged as two arc plates, a first brake disc body 2310-1 and a second brake disc body 2310-2, respectively, arranged in parallel in the front and rear, as shown in Fig. 14 .

[0112] 15 shows a structural diagram of a driving member 2510, which is a component of a brake disc driving module 2500. The specific structure of the driving member 2510 will be described in detail below in combination with FIG. 15, and FIG. 11 may also be referred to.

[0113] As shown in FIG. 15, the drive member 2510 includes a drive member peripheral platform 2511 , a drive member bore 2513 , a drive member body 2515 , an arm 2517 and an arm post 2519 .

[0114] The driving member body 2515 is a hollow tube and is located at the lower end of the driving member 2510. A driving member hollow hole 2513 is provided in the driving member body 2515. The driving member body 2515 is fitted to the outer diameter surface of the second rotating shaft 2133 through the driving member hollow hole 2513. A symmetrical driving member outer edge platform 2511 is provided on the outer circumferential surface of the driving member body 2515, and the driving member is fixed to the lower end of the shift lever 2530 through the driving member outer edge platform 2511. By shifting the shift lever 2530, the driving member 2510 can be moved so as to rotate. An arm 2517 is fixed to the tip of the driving member body 2515 (left side in FIG. 15) along the vertical direction, and an arm pillar 2519 is fixed to the upper tip of the arm 2517 (upper left side in FIG. 15). The arm pillar 2519 extends along the extension direction of the first rotating shaft 2113 and the second rotating shaft 2133, and is inserted into an arc-shaped through hole 2350 in the brake disc 2300. By driving the swing of the shift lever 2530, the driving member 2510 is moved so as to rotate, and the arm pillar 2519 is further moved so as to slide within the arc-shaped through hole 2350.

[0115] When the endoscope operates, the shift lever 2530 is shifted to move the driving member 2510 to rotate synchronously, so that the arm column 2519 slides in the arc-shaped through hole 2350, and the arm column 2519 moves along the arc-shaped through hole 2350 to drive the brake disc 2300 to swing around the positioning hole 2370, so that the O-shaped seal ring 2170 is pressed against the surface grooves on the inner surface of the brake disc groove 2330 in the brake disc 2300, so that the degree of fastening between the brake disc 2300 and the outer peripheral surface of the first rotating shaft 2113 and the outer peripheral surface of the second rotating shaft 2133 can be adjusted, thereby providing the first rotating shaft 2113 and the second rotating shaft 2133 with desired damping. Generally, by the above adjustment, the locking device 210 can have an unlocked state and a locked state, and can provide different degrees of damping when in a position between the unlocked state and the locked state.

[0116] The above is merely one embodiment of the brake disc 2300, and in reality, it is also possible to use a clamping brake disc having multiple contact surfaces and contact and bond it to the outer circumferential surface of the first rotating shaft 2130 and / or the outer circumferential surface of the second rotating shaft 2140 from multiple sides to achieve a braking effect. Those skilled in the art can design it based on the technical knowledge in this field, taking inspiration from the above disclosed embodiments.

[0117] Hereinafter, the operation process of the locking device 210 will be described in detail with reference mainly to FIGS.

[0118] Fig. 12 shows a schematic diagram of the locking device 210 in Fig. 11 in an unlocked state. Fig. 13 shows a schematic diagram of the locking device 210 in Fig. 11 in a locked state. Fig. 12 and Fig. 13 are both structural schematic diagrams at a viewing angle in which the second end of the locking device 210, i.e., the end of the brake disc 2300, is directed out of the plane of the paper after the locking device 210 in Fig. 11 has rotated counterclockwise. Hereinafter, the operation process of the locking device 210 will be briefly introduced with reference to Figs. 11 to 13, with emphasis on the operation process for switching between the locked state and the unlocked state.

[0119] When it is necessary to lock the endoscope locking device 210, the shift lever 2530 is rotated clockwise along the handle 2700 by a certain angle (from position A to position B as shown in FIG. 12 ), whereby the shift lever 2530 moves the driving member 2510 to rotate around the second rotating shaft 2133, drives the arm column 2519 of the driving member 2510 to slide within the arc-shaped through hole 2350, moves the brake disc 2300 to rotate clockwise around the positioning hole 2370, and further causes the surface grain on the brake disc groove 2330 of the brake disc 2300 to press the O-shaped seal ring 2170. and causes the first rotating shaft 2113 and the second rotating shaft 2133 to come into contact with and press against at least one side of the outer circumferential surface of the first rotating shaft 2113 and the second rotating shaft 2133, thereby generating a frictional force when rotating with the first rotating shaft 2113 and the second rotating shaft 2133. The first pulling disc groove 21151 and the second pulling disc groove 21351 stop the winding and pulling out of the pulling thread in the left-right and up-down directions, the pulling length of the pulling thread in the up-down and left-right directions within the catheter is fixed, and the locking device enters a locked state, that is, the angle and direction of the endoscope lens are locked. 12 and 13, the above process is a process of changing from FIG. 12 to FIG. 13, and it can be seen that when the brake disc groove 2330 is in the position of FIG. 12, it does not contact the first rotating shaft 2113, but when it is in the position of FIG. 13, it contacts the first rotating shaft 2113. Although the second rotating shaft 2133 is blocked at this viewing angle, the actual change is the same.

[0120] When it is necessary to unlock the locking device 210, the shift lever 2530 is rotated counterclockwise along the handle 2700 by a certain angle (from position B to position A as shown in FIG. 13), so that the shift lever 2530 moves the driving member 2510 to rotate around the second rotating shaft 2133, and drives the arm column 2519 of the driving member 2510 to slide within the arc-shaped through-hole 2350, so that the brake disc 2300 moves to rotate around the positioning hole 2370, and further realizes separation of the surface grain on the brake disc groove 2330 of the brake disc 2300 from the O-shaped seal ring 2170. When the frictional force applied to the first rotating shaft 2113 and the second rotating shaft 2133 is gradually reduced until it disappears, the locking device 210 leaves the locked state and enters the unlocked state. At this time, the first traction disc 2115 and the second traction disc 2135 can be flexibly rotated with the operator's operation on the first rotating wheel 2111 and the second rotating wheel 2131, and the traction threads associated with the traction discs can be flexibly wound in and out by the traction of each traction disc, thereby flexibly adjusting the angle of the lens of the endoscope. Referring to Figures 12 and 13, it can be seen that the above process is a process of changing from Figure 13 to Figure 12, and the surface grain of the brake disc groove 2330 contacts the first rotating shaft 2113 when it is in the position of Figure 13, and does not contact the first rotating shaft 2113 when it is in the position of Figure 12, and the second rotating shaft 2133 is blocked at this viewing angle, but the actual change is consistent.

[0121] Between the above-mentioned locked and unlocked positions, the shift lever 2530 can be operated to place it at different positions between A and B, putting the locking device into different damping states, thereby obtaining different tightening degrees of adjustment of the rotating wheel as required for rotating the rotating wheel. The locking device allows the endoscope to be set to an appropriate state as required when adjusting it, and when unlocked, the lens angle of the endoscope can be freely adjusted by the rotating wheel, and when locked, the endoscope is fixed and the lens angle does not change, and when in a damping state between the above two, it provides the operator with the necessary feel of turning the rotating wheel, making it easier to operate.

[0122] The principle of the above embodiment will be briefly described below. The combination of the shift lever 2530 and the driving member 2510 forms a lever mechanism. The shift lever 2530 is long and corresponds to the long arm end of the lever. Therefore, by shifting the driving member 2510, the brake disc 2300 can be easily moved to swing via its arm pillar 2519. Conversely, the swing of the brake disc 2300 does not easily move the shift lever 2530. In addition, the arm pillar 2519 fits closely with the arc-shaped through hole 2350 of the brake disc 2300, creating a large frictional force between them. This corresponds to the shift lever 2530 providing a load that inhibits its movement. Therefore, the brake disc 2300 is not easily moved due to loosening. In other words, the above locking device has excellent locking properties. When the shift lever 2530 is shifted to any of the pulled positions, in the absence of external force, it can be suspended there and will not easily loosen.

[0123] The first embodiment described above is a preferred embodiment, and obviously there may be other variations on its basic principle. For example, the rotating wheel module 2100 includes only the first rotating wheel module, i.e. the locking device can adjust the angle of the endoscope in only one dimension. Of course, there are also several other possible variations. For example, the first rotating wheel 2110 and the second rotating wheel 2120 mentioned above are located at opposite positions, rather than at the same end as in this embodiment.

[0124] In the above embodiment, the locking device used in the endoscope further divides the brake disc and the brake disc drive module into two groups, respectively providing damping in the first rotation axis and the second rotation axis, and realizing separate control and adjustment of the observation angle in the first dimension and the second dimension of the endoscope, the second dimension being in a directional dimension different from the first dimension.

[0125] Here, the brake disc 2300 can be divided from top to bottom along the position of the isolation sheet 2150 in FIG. 11, and is divided into a first brake disc portion and a second brake disc portion. Referring to the locking device structure in FIG. 11, the position and structure of the first brake disc drive module are similar to the brake disc drive module 2500 in FIG. 11 (right side in FIG. 11), and the second brake disc drive module can be located on the other side of the first brake disc drive module (left side in FIG. 11), in which the first brake disc portion is installed on the side with the outer circumferential surface of the first rotating shaft, and the second brake disc portion is installed on the side with the outer circumferential surface of the second rotating shaft, and the first brake disc The disk drive module can adjust the degree of tightness of the bond between the first brake disk portion and the outer peripheral surface of the first rotating shaft, thereby providing a desired damping for the first rotating shaft, and rotation of the first traction disk is used to adjust the first traction sled and thereby adjust the viewing angle of the endoscope in a first dimension, and the second brake disk drive module can adjust the degree of tightness of the bond between the second brake disk portion and the outer peripheral surface of the second rotating shaft, thereby providing a desired damping for the second rotating shaft, and rotation of the second traction disk is used to adjust the second traction sled and thereby adjust the viewing angle of the endoscope in a second dimension.

[0126] The above preferred embodiment allows the endoscope to provide for independent adjustment of the viewing angle in one dimension while ensuring that the viewing angle in another dimension is determined.

[0127] The fourth embodiment of the present application provides an endoscope, and its structure and operation process will be described with reference to Fig. 17, specifically in combination with Figs. 11 to 16. To facilitate understanding, parts in this embodiment that have the same functions as those in the third embodiment are given the same names as far as possible. Although the third and fourth embodiments have common novelties, there are still significant differences. Therefore, the description of this embodiment is based on the names provided in this embodiment and does not necessarily correspond to the third embodiment.

[0128] FIG. 17 is a schematic diagram showing the overall structure of an endoscope 2 provided in this embodiment.

[0129] Hereinafter, the fourth embodiment of the present application will be introduced in detail with reference to FIG.

[0130] As shown in Fig. 17, it is a schematic diagram of the cross-sectional structure of the endoscope 2 provided in this embodiment, where the left side of Fig. 17 is the rear end of the endoscope, that is, the locking device 210 and the light source module 20 end, the rear end of the endoscope is the end held by the operator during actual surgery, and the right side of Fig. 17 is the tip of the endoscope structure device, that is, the lens 70 and the bendable part 80 end, the tip of the endoscope is used to realize the observation of the lesion situation of the relevant part by the movement and manipulation of the bendable part during surgery. In this figure, the locking device 210 is in an unlocked state. In the following introduction, the left side of Fig. 17 is referred to as the rear, and the right side of Fig. 17 is referred to as the front.

[0131] As shown in FIG. 17, the endoscope 2 includes a locking device 210, a light source module 20, a traction sled 30, a suction tube 40, an irrigation tube 50, an aviation coupling 60, a lens 70, a bendable section 80, a catheter 90, a shift lever 2530, and a handle 2700.

[0132] The light source module 20 and the locking device 210 are both fitted inside the handle 2700, which is used by the operator to hold the endoscope, and the light source module 20 can provide the lens 70 with an illumination light source during observation. The handle 2700 is located at the rear end of the endoscope 2 (left side of FIG. 17), and the bendable part 80 and the lens 70 are located at the tip of the endoscope 2 (right side of FIG. 17), and they are connected to each other through the catheter 90. When performing minimally invasive surgery, generally, the tip of the endoscope 2 is pushed to the surgical site along the patient's body cavity in the unlocked state in FIG. 17, and the inside of the catheter 90 covers the traction thread 30 connecting the locking device 210 to the lens 70, where covering does not mean to cover tightly, but to provide a dedicated pipe for each traction thread, and the pipe has an appropriate radial dimension. The catheter 90 itself is made of a flexible material, which can be adapted to the curved body cavity of the patient, and the bendable part 80 can be used to adjust the observation angle of the lens 70 at the lesion site. The handle 2700 is held and controlled by the surgical operator, and the surgical operator can use the shift lever 2530 to exercise external control over the locking device 210 as needed, and further enable observation of the lesion site inside the patient's body at different angles.

[0133] Here, the endoscope 2 can realize bending of the flexible traction sled 30 at any angle by the locking device 210, and the locking device 210 adjusts the extension length of the traction sled 30 to realize angle adjustment at the fixed position of the lens 70. For the detailed process of adjusting the locking and unlocking operation states of the locking device 210 using the above-mentioned shift lever 2530, please refer to the third embodiment, and the description will be omitted here.

[0134] The endoscope 2 in this embodiment employs the locking device provided in the third embodiment. However, in practice, it is of course also possible to employ the locking device provided in the first embodiment of the present application. When using this locking device, the specific installation form of the locking device can be referred to the description of the first embodiment, and will not be described again here.

[0135] The tip of Fig. 17 (upper right corner of Fig. 17) further shows the suction tube 40, the irrigation tube 50 and the aviation joint 60 which work in combination with the lens 70. The suction tube 40 and the irrigation tube 50 are used to remove the line of sight obstruction of the observation area of ​​the lens 70, which can ensure the clarity of the operating field of the lens 70, and it is easy to directly look into the pathological condition of the relevant area. The aviation joint 60 is used to connect the necessary leads.

[0136] The fifth embodiment of the present application provides a locking device, and the purpose of providing this embodiment of the locking device is to disseminate the locking device used with the endoscope provided in the third embodiment of the present application to a wider range of cases.

[0137] Hereinafter, the structure and operation process will be described with reference to Fig. 18, and Figs. 11 to 16 may also be referred to. In order to facilitate understanding, parts in this embodiment that have the same functions as those in the third embodiment are given the same names as far as possible. Although the third and fifth embodiments have common novelties, there are still significant differences. Therefore, the description of this embodiment will be based on the names provided in this embodiment and may not necessarily correspond to the third embodiment.

[0138] The locking device 210' is generally applied to the detection scene, and in combination with the description process of the third embodiment, the first traction disk 2115 and the second traction disk 2135 in the rotating wheel module 2100 are replaced with the first function disk 2115' and the second function disk 2135' to realize various possible adjustment functions. It should be understood that the structure of the first function disk 2115' and the second function disk 2135' can be structurally adjusted according to the function of the locking device 210' and the application scene requirements. This embodiment is not specifically limited.

[0139] The locking device 210 ′ includes a first rotating wheel 2111 , a first rotating shaft 2113 , a brake disc 2300 , and a brake disc drive module 2500 .

[0140] The first rotating wheel 2111 is connected to a first end of the first rotating shaft 2113, a first functional disc 2115' is installed at a position closer to the second end of the first rotating shaft 2113, and a brake disc 2300 is installed on at least one side of the outer circumferential surface of the first rotating shaft 2113. The brake disc drive module 2500 can adjust the degree of tightening between the brake disc 2300 and the outer circumferential surface of the first rotating shaft 2113, so that the rotation damping of the first rotating shaft 2113 is within a first predetermined damping range, thereby providing desired damping for the rotation of the first rotating shaft 2113.

[0141] Optionally, the locking device 210' further includes a second rotating wheel 2131 and a second rotating shaft 2133, the second rotating wheel 2131 is connected to a first end of the second rotating shaft 2133, and a second functional disc 2135' is installed at a position closer to the second end of the second rotating shaft 2133, the second rotating shaft 2133 is coaxial with the first rotating shaft 2113, and the brake disc 2300 is located on at least one side of the outer circumferential surface of the second rotating shaft 2133, and the degree of fastening between the brake disc 2300 and the outer circumferential surface of the first rotating shaft 2113 is adjusted, and the degree of fastening between the brake disc 2300 and the outer circumferential surface of the second rotating shaft 2133 is synchronously adjusted, so as to make the damping of the rotation of the second rotating shaft 2133 fall within a second predetermined damping range, thereby synchronously providing a desired damping for the rotation of the second rotating shaft 2133. 18 shows the same structure as that of the second embodiment shown in FIG. 11, and merely illustrates that the members in the fifth embodiment have the same function as those in the second embodiment, but does not necessarily limit the structure to be the same. As will be understood, the members in the fifth embodiment and the second embodiment having the same function may have the same structure or may have different structures.

[0142] The locking device 210' provided in the above fifth embodiment may further include other necessary structures, such as a detection device, a display device, etc., for combining with the locking device. It should be understood that the operation process of the locking device of this embodiment is similar to that of the third embodiment, so please refer to the third embodiment and the description of this embodiment will be omitted.

[0143] In the description of this specification, the description of the reference terms "one embodiment", "several embodiments", "examples", "specific examples", or "several examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, general descriptions of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. In addition, if not mutually inconsistent, a person skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples.

[0144] It should be noted that, finally, the above embodiments are only used to describe the technical solutions of the present application, and are not intended to limit the same. Although the present application has been described in detail with reference to the above-mentioned embodiments, it is understood by those skilled in the art that it can still modify the technical solutions described in the above-mentioned embodiments, or equivalently replace some or all of the technical features therein, and these modifications or replacements do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present application. [Explanation of symbols]

[0145] Explanation of some symbols in the first embodiment: 10-locking device, 100-rotating wheel module, 110-first rotating wheel module, 111-first rotating wheel, 113-first rotating shaft, 115-first traction disk, 1151-first traction disk groove, 1153-first traction thread, 1155-first traction hole, 1157-first traction disk center hole, 130-second rotating wheel module, 131-second rotating wheel, 133-second rotating shaft, 135-second traction disk, 1351-second traction disk groove, 150-isolation sheet, 300-brake disc, 310-brake disc body (frame structure), 311-upper disc of brake disc, 313-lower disc of brake disc, 315-brake disc opening, 3151-upper end opening of brake disc opening, 3153-lower end opening of brake disc opening, 317-gap, 330-protruding body, 500 - brake disc drive module, 510 - fastener, 511 - stud, 513 - upper nut, 515 - lower nut, 530 - gripper, Explanation of some symbols in the second embodiment For the first functional disk 115', the second functional disk 135', and the like, please refer to the explanation of the symbols in the first embodiment. Explanation of some symbols in the third embodiment 210-Locking device, 2100 - rotating wheel module, 2110 - first rotating wheel module, 2111 - first rotating wheel, 2113 - first rotating shaft, 2115 - first traction disk, 21151 - first traction disk groove, 21153 - first traction thread, 21155 - first traction hole, 21157 - first traction disk center hole, 2130 - second rotating wheel module; 2131 - second rotating wheel; 2133 - second rotating shaft; 2135 - second traction disc; 21351 - second traction disc groove; 2150-Isolation sheet, 2170-O-shaped seal ring, 2170-1-First group of O-shaped seal ring, 2170-2-Second group of O-shaped seal ring, 2300-brake disc, 2310-brake disc body, 2310-1-first brake disc body, 2310-2-second brake disc body, 2330-brake disc groove, 2350-arc-shaped through hole, 2370-positioning hole, 2500 - brake disc drive module, 2510 - drive member, 2511 - drive member outer edge platform, 2513 - drive member hollow hole, 2515 - drive member body, 2517 - arm, 2519 - arm pillar, 2530 - shift lever, 2700-Handle, 2710-Fixed column, Explanation of some symbols in the fourth embodiment 2-endoscope, 210-locking device, 20-light source module, 30-traction sled, 40-suction tube, 50-irrigation tube, 60-aviation fitting, 70-lens, 80-bendable section, 90-catheter, 2530-shift lever, 2700-handle, Explanation of some symbols in the fifth embodiment 210'-lock device, 2115'-first function disk, 2135'-second function disk, etc., please refer to the explanation of the symbols in the third embodiment.

Claims

1. A locking device for use in an endoscope, comprising: a first rotating wheel, a first rotating shaft, a brake disc, and a brake disc drive module; The first rotating wheel is connected to a first end of the first rotating shaft, and a first traction disk is disposed at a position near a second end of the first rotating shaft, and the first rotating wheel controls the rotation of the first rotating shaft and can rotate the first traction disk, and the rotation of the first traction disk adjusts a first traction sled, thereby adjusting a viewing angle of the endoscope in a first dimension; The brake disc is installed on at least one side of the outer peripheral surface of the first rotating shaft or the first traction disc, and the brake disc drive module can adjust the degree of tightening of the bonding between the brake disc and the outer peripheral surface of the first rotating shaft or the first traction disc, thereby keeping the rotational damping of the first rotating shaft within a first predetermined damping range.

2. The brake disc is generally a frame structure that holds the peripheral surface of the first rotating shaft or the first traction disc, and the frame structure has a brake disc opening that opens it up and down, 2. The locking device for an endoscope according to claim 1, characterized in that the brake disc drive module has a fastener, the fastener is installed at at least one end of the brake disc opening, and the fastener can adjust the biasing force applied to the brake disc, thereby changing the clamping force applied to the first rotation shaft of the brake disc and the first traction disc, thereby adjusting the degree of tightening of the bonding between the brake disc and the first rotation shaft or the outer peripheral surface of the first traction disc, thereby keeping the rotational damping of the first rotation shaft within the first predetermined damping range.

3. 3. The locking device for an endoscope according to claim 2, wherein a protrusion is provided at a base position of the brake disc facing the brake disc opening, and the brake disc is fixed within the body of the locking device by the protrusion.

4. 4. The locking device for an endoscope according to claim 3, wherein a gap is provided at a base position of the brake disc to increase the elastic deformation space of the brake disc.

5. The locking device for an endoscope according to claim 3, characterized in that the protrusion is installed between a first clamping column and a second clamping column on the body, thereby realizing that the brake disc is fixed within the body of the locking device.

6. The fastener includes a stud, and an upper nut and a lower nut screwed onto the stud, the upper nut being installed at an upper end opening of the brake disc opening, and the lower nut being installed at a lower end opening of the brake disc opening, The upper nut and a first segment of the stud form a first thread pair, and the lower nut and a second segment of the stud form a second thread pair, the first thread pair and the second thread pair having opposite thread rotation directions; 3. The locking device for an endoscope according to claim 2, wherein the biasing force applied to the brake disc is adjusted by rotating the stud.

7. The fastener includes a stud, and a female thread is provided at an opening position of the frame structure to screw into the stud, wherein an upper end opening of the opening screws into a first segment of the stud to form a third screw pair, and a lower end opening of the opening screws into a second segment of the stud to form a fourth screw pair, and the third screw pair and the fourth screw pair have opposite screw rotation directions; 3. The locking device for an endoscope according to claim 2, wherein the biasing force applied to the brake disc is adjusted by rotating the stud.

8. 8. A locking device for use with an endoscope as described in claim 6 or 7, characterized in that the stud is provided with a gripping portion extending outside the shell of the body, the gripping portion being used by an operator of the locking device to rotate the stud.

9. 9. The locking device for an endoscope according to claim 8, wherein the stud has an end surface that abuts against an outer surface of the shell of the body.

10. The locking device further includes a second rotating wheel and a second rotating shaft, 3. The locking device for an endoscope according to claim 2, characterized in that: the second rotating wheel is connected to a first end of the second rotating shaft, the first rotating shaft is coaxial with the second rotating shaft, the second rotating shaft is fitted on an outer circumferential surface of the first rotating shaft, and a second traction disc is installed at a position close to the second end of the second rotating shaft, the second rotating wheel can control the rotation of the second rotating shaft and move the second traction disc to rotate, the rotation of the second traction disc adjusts a second traction sled, thereby adjusting an observation angle of the endoscope in a second dimension, the second dimension being in a direction dimension different from the first dimension, the brake discs further clamp the outer circumferential surface of the second rotating shaft or the second traction disc as a whole, and when the brake discs apply a clamping force to the first rotating shaft and the first traction disc, they also apply a corresponding clamping force to the second rotating shaft and the second traction disc, so that the rotation damping of the second rotating shaft falls within a second predetermined damping range.

11. 2. The locking device for an endoscope according to claim 1, characterized in that the brake disc is installed on one side of an outer circumferential surface of the first rotating shaft, and the brake disc drive module can adjust a degree of fastening of the bonding between the brake disc and the outer circumferential surface of the first rotating shaft, thereby keeping the rotational damping of the first rotating shaft within the first predetermined range.

12. 12. The locking device according to claim 11, further comprising: a second rotating wheel and a second rotating shaft, the second rotating wheel is connected to a first end of the second rotating shaft, the second rotating shaft is coaxial with the first rotating shaft, a second traction disc is installed near the second end of the second rotating shaft, the brake disc is located on at least one side of the outer circumferential surface of the second rotating shaft, and the degree of fastening between the brake disc and the outer circumferential surface of the first rotating shaft is adjusted, and the degree of fastening between the brake disc and the outer circumferential surface of the second rotating shaft is also adjusted synchronously to make the rotation damping of the second rotating shaft fall within a second predetermined damping range, and the rotation of the second traction disc is used to adjust a second traction sled of the endoscope, thereby adjusting an observation angle of the endoscope in a second dimension, the second dimension being in a direction dimension different from the first dimension.

13. 13. The locking device for use in an endoscope according to claim 12, characterized in that an O-shaped seal ring is provided at a bonding location between an outer circumferential surface of the first rotating shaft and / or an outer circumferential surface of the second rotating shaft and the brake disc.

14. 13. The locking device for an endoscope according to claim 12, characterized in that a bonding surface of the brake disc that comes into contact with the outer circumferential surface of the first rotating shaft and / or the outer circumferential surface of the second rotating shaft has a surface groove that increases frictional force.

15. 13. The locking device used in an endoscope according to claim 12, characterized in that a positioning hole is provided at one end of the brake disc body, the positioning hole is rotatably fitted into a fixed pillar of a shell of the locking device, and by adjusting a swing angle of the brake disc around the fixed pillar, a degree of fastening of the bonding between the brake disc and the first rotation shaft and the second rotation shaft can be adjusted.

16. A circular arc-shaped through hole is provided in the brake disc body of the brake disc; 16. The locking device for an endoscope according to claim 15, wherein the brake disc drive module includes a drive member, the main body of which is arranged coaxially with the first rotation shaft, the drive member further has an arm connected to the drive member main body and extending radially to one side, an arm column extending in the axial direction is arranged on the arm, the arm column is inserted into an arc-shaped through hole arranged on the brake disc, the drive member rotates, and the arm column slides in the arc-shaped through hole accordingly, and the brake disc is moved to swing around the fixed column, thereby adjusting the swing angle of the brake disc around the fixed column.

17. 17. The locking device for an endoscope according to claim 16, characterized in that the brake disc drive module further includes a shift lever, the shift lever having a predetermined length significantly greater than a diameter of the drive member body, one end of which is fixedly connected to the drive member body and the other end of which extends radially to provide an operating surface that is easy to shift, and the drive member can be rotated by shifting the shift lever.

18. The locking device for an endoscope according to claim 12, characterized in that an isolation sheet is installed in the axial gap between the first traction disc and the second traction disc.

19. 13. The locking device for an endoscope according to claim 12, wherein the brake discs and the brake disc drive modules are divided into two groups, each providing damping to the first rotation axis and the second rotation axis.

20. An endoscope, comprising: a first rotating wheel, a first rotating shaft, a brake disc, and a brake disc drive module; The first rotating wheel is connected to a first end of the first rotating shaft, and a first traction disk is disposed at a position near a second end of the first rotating shaft, and the first rotating wheel can control the rotation of the first rotating shaft and move the first traction disk to rotate; The brake disc is installed on at least one side of the outer circumferential surface of the first rotating shaft or the first traction disc, and the brake disc driving module can adjust the degree of fastening between the brake disc and the outer circumferential surface of the first rotating shaft or the first traction disc, so that the rotation damping of the first rotating shaft is within a first predetermined damping range; The endoscope, characterized in that rotation of the first traction disc is used to adjust a first traction sled, thereby adjusting the observation angle of the lens of the endoscope in a first dimension, and this adjustment allows the lens of the endoscope to be moved and stopped to rotate to a required observation angle in the first dimension as necessary, in accordance with the damping provided by the brake disc.

21. A locking device, the locking device including a first rotating wheel, a first rotating shaft, a brake disc, and a brake disc drive module; The first rotating wheel is connected to a first end of the first rotating shaft, and a first function disk is disposed at a position near a second end of the first rotating shaft, and the first rotating wheel controls the rotation of the first rotating shaft to rotate the first function disk; The brake disc is installed on at least one side of the outer peripheral surface of the first rotating shaft or the first functional disc, and the brake disc drive module can adjust the degree of fastening of the brake disc and the outer peripheral surface of the first rotating shaft or the first functional disc, thereby keeping the rotational damping of the first rotating shaft within a first predetermined damping range.

Images