Endoscope bending angle detection device

Abstract

The utility model relates to an endoscope bending angle detection device which is used for detecting the bending angle of a bending part of an endoscope and comprises a clamping mechanism, a supporting assembly, a visual detection unit and a processing unit. The clamping mechanism is used for clamping and fixing an endoscope; the supporting assembly and the clamping mechanism are arranged at an interval, and the supporting assembly is used for supporting an insertion part between a bending part and a handle of the endoscope; the visual detection unit is arranged on the supporting assembly, located above the bending part of the endoscope and used for obtaining an image after the bending part of the endoscope is bent; and the processing unit is in communication connection with the visual detection unit, and the processing unit can detect the bending angle of the bending part according to the image acquired by the visual detection unit. The visual detection unit is combined with the processing unit to detect the bending angle of the endoscope, frequent manual operation is not needed, the detection efficiency is improved, and the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, in particular to a device for detecting the bending angle of an endoscope. Background Art

[0002] The production inspection process for medical endoscopes requires testing the maximum bending angle in different directions to verify compliance with design specifications. Currently, endoscope bending angle testing primarily relies on a disc scale, with the angle estimated visually. Manual estimation is inaccurate, and testing large products like gastrointestinal scopes requires two people to perform the test, resulting in a waste of manpower. Furthermore, alignment and comparison are required, making this inefficient. Utility Model Content

[0003] Based on this, it is necessary to provide an endoscope bending angle detection device to address the technical problems of poor accuracy, waste of manpower and low efficiency in endoscope bending angle testing in related technologies.

[0004] An endoscope bending angle detection device is used to detect the bending angle of a bending portion of an endoscope, the endoscope bending angle detection device comprising:

[0005] A clamping mechanism, used for clamping and fixing the handle of the endoscope;

[0006] a support assembly, spaced apart from the clamping mechanism, the support assembly being used to support the insertion portion between the bending portion and the handle of the endoscope;

[0007] a visual detection unit, provided on the support assembly and located above the bent portion of the endoscope, for acquiring an image of the bent portion of the endoscope;

[0008] A processing unit is communicatively connected to the visual detection unit, and the processing unit is capable of detecting the bending angle of the bending portion based on the image acquired by the visual detection unit.

[0009] In one embodiment, the clamping mechanism includes:

[0010] base;

[0011] A fixing assembly is rotatably mounted on the base; the fixing assembly can clamp and fix the handle of the endoscope;

[0012] The rotating assembly is rotatably connected to the base, and the rotating assembly is connected to the fixed assembly to drive the fixed assembly to rotate relative to the base.

[0013] In one embodiment, the base includes a bottom plate and two spaced support plates fixedly connected to the bottom plate; the rotating assembly includes:

[0014] A rotating shaft rotatably connected to the two support plates, one end of the rotating shaft being fixedly connected to the fixing assembly;

[0015] A handwheel is fixedly connected to the other end of the rotating shaft.

[0016] In one embodiment, the fixing assembly includes:

[0017] A support seat, configured with an accommodating groove for accommodating the handle of the endoscope;

[0018] A limiting plate has one end hinged to one side of the support base and the other end snap-connected to the support base. The handle of the endoscope can be pressed between the limiting plate and the support base.

[0019] In one embodiment, the fixing assembly further comprises:

[0020] A connecting plate, the support seat is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the rotating shaft.

[0021] In one embodiment, the support assembly includes:

[0022] base;

[0023] A support block is fixedly connected to the base, and a limiting groove is constructed on the support block, and the insertion portion of the endoscope is supported in the limiting groove;

[0024] a cover plate, arranged on the limiting groove to limit the insertion portion of the endoscope from being separated from the limiting groove;

[0025] Wherein, the insertion portion of the endoscope can rotate relative to the support block in the limiting groove.

[0026] In one embodiment, the endoscope bending angle detection device also includes a detection platform, which is arranged on the base. The detection platform is provided with a limiting groove, and the connection between the bending part and the insertion part of the endoscope is accommodated in the limiting groove. The bending part of the endoscope is bent on the detection platform.

[0027] In one embodiment, the endoscope bending angle detection device further includes:

[0028] A backlight panel is provided between the detection platform and the base, and is used to adjust the brightness of light on the detection platform.

[0029] In one embodiment, the visual detection unit includes:

[0030] Camera element;

[0031] A connecting component is provided on the base, the imaging element is connected to the connecting component, and the portion of the connecting component connected to the imaging element can move up and down relative to the bending portion of the endoscope.

[0032] In one embodiment, the connection assembly includes:

[0033] A fixing seat, fixedly connected to the base;

[0034] a driving rod rotatably connected to the fixing seat;

[0035] A slider is in transmission connection with the driving rod, and the imaging element is fixedly connected to the slider;

[0036] When the driving rod rotates relative to the fixing seat, the sliding block moves along the axial direction of the driving rod.

[0037] A method for detecting the bending angle of an endoscope, the method comprising the following steps:

[0038] Clamping and fixing the handle of the endoscope to the clamping mechanism;

[0039] supporting the insertion portion between the bending portion and the handle of the endoscope on the support assembly;

[0040] Operating the handle of the endoscope to bend the bending portion;

[0041] The visual detection unit obtains an image of the bent portion of the endoscope after being bent;

[0042] The processing unit calculates the bending angle of the endoscope according to the image;

[0043] Wherein, after the bending portion of the endoscope is bent, the angle between the bending portion and the axis of the endoscope is represented by θ, and the bending angle of the bending portion of the endoscope is 180°-θ.

[0044] Beneficial effects of the utility model:

[0045] The present invention provides an endoscope bending angle detection device, wherein a clamping mechanism is used to clamp and fix the endoscope, so that when the bending angle of the bending portion of the endoscope is detected, the endoscope is fixed after the bending portion is bent, so that the visual detection unit can obtain an image of the bent portion. The support assembly is used to support the insertion portion between the bending portion and the handle of the endoscope, so that the endoscope is on a relative plane, thereby reducing the problem of inaccurate detection caused by the tilt of the endoscope. The state of the bending portion of the endoscope after bending is photographed by the visual detection unit, and the bending angle of the bending portion is calculated by the processing unit based on the image obtained by the visual detection unit, thereby realizing the detection of the bending angle of the endoscope. Through the above structural form, the bending angle of the endoscope can be detected by the visual detection unit only by clamping the endoscope, without frequent manual operation, thereby improving the detection efficiency; and the bending angle of the endoscope can be detected by the visual detection unit in combination with the processing unit, without manual reading, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the overall structure of an endoscope bending angle detection device provided by one embodiment of the present utility model;

[0047] Figure 2 This is a schematic diagram of the overall structure of the clamping mechanism in the endoscope bending angle detection device provided by one embodiment of the utility model;

[0048] Figure 3 This is a schematic structural diagram of the support assembly and the visual detection unit connected in the endoscope bending angle detection device provided by one embodiment of the present invention;

[0049] Figure 4 A schematic structural diagram of the endoscope bending angle detection device provided by one embodiment of the present invention after the support assembly and the visual detection unit are connected from another perspective;

[0050] Figure 5 A schematic flow chart of a method for detecting an endoscope bending angle provided in one embodiment of the present invention.

[0051] Reference numerals:

[0052] Clamping mechanism 100; base 110; bottom plate 111; support plate 112; fixing assembly 120; support seat 121; accommodating groove 1211; limiting plate 122; connecting plate 123; rotating assembly 130; rotating shaft 131; handwheel 132; supporting assembly 200; base 210; supporting block 220; cover plate 230; visual inspection unit 300; camera element 310; connecting assembly 320; fixing seat 321; driving rod 322; slider 323; guide rod 324; mounting plate 325; locking member 326; rotating disk 327; processing unit 400; inspection platform 500; backlight panel 600; button 700; endoscope 800. DETAILED DESCRIPTION

[0053] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0056] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0057] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0058] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0059] See Figures 1 to 4 According to an embodiment of the present invention, an endoscope bending angle detection device is provided for detecting the bending angle of the bending portion of an endoscope 800. The endoscope bending angle detection device includes a clamping mechanism 100, a support assembly 200, a visual detection unit 300 and a processing unit 400. The clamping mechanism 100 is used to clamp and fix the handle of the endoscope 800. The support assembly 200 is spaced apart from the clamping mechanism 100, and the support assembly 200 is used to support the insertion portion between the bending portion and the handle of the endoscope 800. The visual detection unit 300 is provided on the support assembly 200 and is located above the bending portion of the endoscope 800, and is used to obtain an image of the bending portion of the endoscope 800 after bending. The processing unit 400 is communicatively connected to the visual detection unit 300, and the processing unit 400 can detect the bending angle of the bending portion based on the image obtained by the visual detection unit 300.

[0060] The present technical solution provides an endoscope bending angle detection device, wherein a clamping mechanism 100 is used to clamp and fix the endoscope 800, so that when the bending angle of the bending portion of the endoscope 800 is detected, the endoscope 800 is fixed after the bending portion is bent, so that the visual detection unit 300 can obtain an image of the bending portion after the bending. The support assembly 200 is used to support the insertion portion between the bending portion and the handle of the endoscope 800, so that the endoscope 800 is on a relative plane, thereby reducing the problem of inaccurate detection caused by the tilt of the endoscope 800. The state of the bending portion of the endoscope 800 after bending is photographed by the visual detection unit 300, and the bending angle of the bending portion is calculated by the processing unit 400 based on the image obtained by the visual detection unit 300, thereby realizing the detection of the bending angle of the endoscope 800. Through the above-mentioned structural form, it is only necessary to clamp the endoscope 800 so that the bending angle of the endoscope 800 can be detected through the visual detection unit 300, without the need for frequent manual operations, thereby improving the detection efficiency; and the visual detection unit 300 is combined with the processing unit 400 to detect the bending angle of the endoscope 800, without the need for manual reading, thereby improving the detection accuracy.

[0061] In this embodiment, the processing unit 400 may be a computer. The computer is connected to the visual inspection unit 300 via a cable. When the bending portion of the endoscope 800 is bent, the visual inspection unit 300 may take a picture of the bending portion of the endoscope 800 in the bent state. The picture is transmitted to the computer, and the computer may calculate the angle of the bending portion using an angle calculation algorithm.

[0062] It is understood that the bending portion of endoscope 800 includes a steering serpentine that can be steered up, down, left, and right. The handle of endoscope 800 is connected to the steering serpentine via a transmission mechanism, allowing the handle to control the steering serpentine's bending in four directions: up, down, left, and right. The endoscope bending angle detection device provided in this embodiment is used to detect the bending angle of the bending portion.

[0063] like Figure 1 and Figure 2 As shown, in one embodiment, the clamping mechanism 100 includes a base 110, a fixed component 120 and a rotating component 130, and the fixed component 120 is rotatably provided on the base 110; the fixed component 120 can clamp and fix the handle of the endoscope 800; the rotating component 130 is rotatably connected to the base 110, and the rotating component 130 is connected to the fixed component 120 to drive the fixed component 120 to rotate relative to the base 110.

[0064] The base 110 is used to support the fixed assembly 120 and the rotating assembly 130, and provide structural support for the connection between the fixed assembly 120 and the rotating assembly 130. By rotatably connecting the fixed assembly 120 to the base 110, the endoscope 800 fixed by the fixed assembly 120 can rotate along with the fixed assembly 120 when the fixed assembly 120 rotates relative to the base 110. This arrangement allows the fixed assembly 120 to rotate relative to the base 110 when the snake bone is bent in different directions, so that the plane formed after the bend is rotated to a horizontal plane, so that the visual inspection unit 300 can take pictures of the entire bending angle. By rotatably connecting the rotating assembly 130 to the base 110, the rotating assembly 130 is connected to the fixed assembly 120, so that when the rotating assembly 130 is rotated, the fixed assembly 120 can be driven by the rotating assembly 130 to rotate relative to the base 110, thereby realizing the rotation of the endoscope 800.

[0065] like Figure 1 and Figure 2 As shown, specifically, the base 110 includes a bottom plate 111 and two spaced apart support plates 112 fixedly connected to the bottom plate 111; the rotating assembly 130 includes a rotating shaft 131 and a handwheel 132, the rotating shaft 131 is rotatably connected to the two support plates 112, one end of the rotating shaft 131 is fixedly connected to the fixed assembly 120; the handwheel 132 is fixedly connected to the other end of the rotating shaft 131.

[0066] The base plate 111 is a flat plate structure, and two support plates 112 are arranged at one end of the base plate 111 at intervals. The support plates 112 are perpendicular to the base plate 111, and are arranged in this way to form a stable support structure. A connecting hole is provided on the support plate 112, and the rotating shaft 131 passes through the connecting holes on the two support plates 112 and can rotate relative to the support plate 112. Specifically, a rotating bearing can be provided in the connecting hole so that the rotating shaft 131 is rotatably connected to the support plate 112. One end of the rotating shaft 131 is fixedly connected to the fixed assembly 120 so that when the rotating shaft 131 rotates relative to the base 110, it can drive the fixed assembly 120 to rotate relative to the base 110. In this embodiment, by connecting the handwheel 132 to the other end of the rotating shaft 131, it is convenient for the operator to drive the rotating shaft 131 to rotate through the handwheel 132, thereby realizing the rotation of the fixed assembly 120.

[0067] As an alternative embodiment, the handwheel 132 can be configured as a motor, with the motor base fixedly connected to one of the support plates 112, and the motor shaft fixedly connected to the rotating shaft 131. The motor drives the rotating shaft 131 to rotate, thereby driving the fixed assembly 120 to rotate. Regardless of which solution is adopted, the rotating shaft 131 can achieve 360° rotation, with each 90° being a node limit.

[0068] like Figure 1 and Figure 2As shown, in one embodiment, the fixing assembly 120 includes a support base 121 and a limiting plate 122. The support base 121 is configured with an accommodating groove 1211, which is used to accommodate the handle of the endoscope 800. One end of the limiting plate 122 is hinged to one side of the support base 121, and the other end of the limiting plate 122 is snap-connected to the support base 121. The handle of the endoscope 800 can be pressed between the limiting plate 122 and the support base 121. By configuring the accommodating groove 1211 on the support base 121, the handle of the endoscope 800 is accommodated in the accommodating groove 1211, so that the endoscope 800 is limited by the sidewall of the accommodating groove 1211. A limiting plate 122 is hingedly connected to one side of the support base 121 so that the limiting plate 122 can rotate relative to the support base 121. The other end of the limiting plate 122 is snap-connected to the support base 121. After the limiting plate 122 is snap-connected to the support base 121, the limiting plate 122 and the support base 121 work together to limit the endoscope 800, thereby preventing the endoscope 800 from moving in a direction perpendicular to the width of the accommodating groove 1211. Furthermore, one end of the limiting plate 122 is hingedly connected to the support base 121, and the other end is snap-connected to the support base 121. When the endoscope 800 is subjected to bending angle detection, it is convenient to clamp and fix it to the fixing assembly 120, thereby facilitating operation and improving detection efficiency.

[0069] It is understood that the shape of the accommodating groove 1211 is adapted to the shape of the end of the endoscope 800 that is away from the front end, so that when the handle of the endoscope 800 is placed in the accommodating groove 1211, the sidewalls of the accommodating groove 1211 can limit the handle of the endoscope 800. The limiting plate 122 is also provided with a groove that matches the outer contour of the endoscope 800, so that when the limiting plate 122 is covered with the support base 121, the handle of the endoscope 800 can be snapped into the groove of the limiting plate 122, thereby limiting the endoscope 800 through the groove of the limiting plate 122.

[0070] like Figure 1 and Figure 2 As shown, in one embodiment, the fixing assembly 120 further includes a connecting plate 123, the support base 121 is fixedly connected to the connecting plate 123, and the connecting plate 123 is fixedly connected to the rotating assembly 130. Specifically, a threaded hole is provided on the end of the support base 121 facing the support plate 112, and a through hole corresponding to the threaded hole on the support base 121 is provided on the connecting plate 123. Bolts pass through the through hole and the threaded hole in sequence to fix the support base 121 to the connecting plate 123. The end of the rotating shaft 131 facing the fixing assembly 120 is configured into a square structure, and a mounting hole is provided on the connecting plate 123 that is compatible with the directional structure of the rotating shaft 131. The square structure of the rotating shaft 131 is inserted into the mounting hole to achieve fixed installation of the rotating shaft 131 and the connecting plate 123.

[0071] like Figure 1 、 Figure 3 and Figure 4 As shown, in one embodiment, the support assembly 200 includes a base 210, a support block 220 and a cover plate 230. The support block 220 is fixedly connected to the base 210. A limiting groove is constructed on the support block 220, and the insertion portion of the endoscope 800 is supported in the limiting groove; the cover plate 230 is covered on the limiting groove to limit the insertion portion of the endoscope 800 from being separated from the limiting groove; wherein, the insertion portion of the endoscope 800 can rotate in the limiting groove relative to the support block 220.

[0072] Specifically, the base 210 is constructed as an L-shaped plate structure, with one end of the base 210 supported on a horizontal plane and the other end of the base 210 extending vertically upward. The support block 220 is fixedly connected to one end of the base 210 located on the horizontal plane and is arranged near the fixing assembly 120. Among them, a connecting block is provided below the support block 220, and a groove is provided at both ends of the connecting block. A through hole is provided at the bottom of the groove. A threaded hole is provided on the base 210, and a bolt passes through the through hole in the groove and is fixedly connected to the threaded hole on the base 210. A threaded hole is provided at the position between the two grooves on the connecting block, and the support block 220 is fixedly connected to the connecting block by bolts.

[0073] A semicircular retaining groove is provided on the top surface of the support block 220, and the insertion portion of the endoscope 800 is supported within the retaining groove. One end of the cover plate 230 is hinged to one end of the support block 220. The cover plate 230 is also provided with a semicircular groove. The semicircular groove on the cover plate 230 and the semicircular retaining groove on the support block 220 form a circular groove. When the endoscope 800 is rotated under the drive of the fixing assembly 120, the endoscope 800 can rotate relative to the cover plate 230 and the support block 220. The cover plate 230 is used to limit the position of the endoscope 800, so that the portion of the endoscope 800 located within the retaining groove does not fall out of the retaining groove.

[0074] like Figure 1 、 Figure 3 and Figure 4As shown, in one embodiment, the endoscope bending angle detection device further includes a detection platform 500. The detection platform 500 is provided on the base 210. The detection platform 500 is provided with a limiting groove. The connection between the bending portion and the insertion portion of the endoscope 800 is accommodated in the limiting groove. The bending portion of the endoscope 800 is bent on the detection platform 500. By providing the detection platform 500, the plane formed after the steering snake is bent can be supported on the detection platform 500. After the visual inspection unit 300 takes a picture, the processing unit 400 can clearly identify the concave bending angle. By providing the limiting groove on the detection platform 500, the main body of the endoscope 800 is limited during the steering snake bending, so that the main body of the endoscope 800 will not be skewed, thereby ensuring the accuracy of the detection.

[0075] like Figure 1 、 Figure 3 and Figure 4 As shown, in one embodiment, the endoscope bending angle detection device further includes a backlight panel 600, which is disposed between the detection platform 500 and the base 210. The backlight panel 600 is used to adjust the brightness of the light on the detection platform 500. By arranging the backlight panel 600 between the detection platform 500 and the base 210 to illuminate the detection platform 500, the quality of the image obtained by the visual detection unit 300 is improved, thereby facilitating the angle calculation by the processing unit 400.

[0076] like Figure 1 、 Figure 3 and Figure 4 As shown, in one embodiment, the visual inspection unit 300 includes an imaging element 310 and a connecting assembly 320. The connecting assembly 320 is disposed on the base 210, and the imaging element 310 is connected to the connecting assembly 320. The portion of the connecting assembly 320 to which the imaging element 310 is connected can move up and down relative to the curved portion of the endoscope 800. Specifically, the imaging element 310 can be an industrial medical camera. By connecting the imaging element 310 via the connecting assembly 320 and being able to move up and down relative to the base 210, the imaging element 310 can adjust the optimal shooting distance according to actual operating conditions, thereby ensuring the quality of the acquired image.

[0077] Specifically, the connecting assembly 320 includes a fixed seat 321, a sliding rod and a slider 323. The fixed seat 321 is fixedly connected to the base 210; the driving rod 322 is rotatably connected to the fixed seat 321; the slider 323 is transmission-connected to the driving rod 322, and the camera element 310 is fixedly connected to the slider 323; wherein, when the driving rod 322 rotates relative to the fixed seat 321, the slider 323 moves along the axial direction of the driving rod 322.

[0078] like Figure 1 、 Figure 3 and Figure 4 As shown, a fixing base 321 is fixedly connected to one end of the vertically extending base 210. The fixing base 321 is constructed in a U-shaped structure, with the middle portion of the fixing base 321 fixedly connected to the base 210. Connecting holes are provided at both ends of the fixing base 321, and the ends of the driving rod 322 are rotatably connected to the connecting holes. A guide rod 324 is provided on each side of the fixing base 321, one on each side of the driving rod 322. A threaded hole is provided in the middle of the slider 323, extending vertically through the slider 323. The driving rod 322 is threadedly connected to the threaded hole in the slider 323. Guide holes corresponding to the guide rods 324 are provided on either side of the threaded hole, and the guide rods 324 are inserted into the guide holes. A mounting plate 325 is also provided at the end of the slider 323 facing away from the fixing base 321. The mounting plate 325 is fixedly connected to the slider 323, and the industrial medical camera is fixedly connected to the bottom end of the mounting plate 325. When the driving rod 322 is rotated, the slider 323 moves relative to the driving rod 322 , thereby driving the industrial medical camera to move up and down.

[0079] Specifically, a rotating disk 327 is provided at the end of the drive rod 322 facing away from the industrial medical camera. A handle is provided on the rotating disk 327, which is fixedly connected to the drive rod 322. Turning the rotating disk 327 with the handle rotates the drive rod 322, thereby rotating the drive rod 322 relative to the fixed base 321. Furthermore, a locking member 326 is provided on the side of the slider 323. The locking member 326 is rotatably connected to the slider 323 and can abut against one of the guide rods 324 to restrict movement of the slider 323 relative to the fixed base 321, thereby locking the slider 323 and fixing the height of the imaging element 310. To adjust the height of the imaging element 310, the locking member 326 is rotated to separate the end of the locking member 326 from the guide rod 324, thereby unlocking the slider 323.

[0080] like Figure 5 As shown, an embodiment of the present invention further provides a method for detecting the bending angle of an endoscope 800. The method for detecting the bending angle of an endoscope 800 includes the following steps:

[0081] S100, clamping and fixing the handle of the endoscope to the clamping mechanism;

[0082] S200, supporting the insertion portion between the bending portion and the handle of the endoscope on the support assembly;

[0083] S300, operating the handle of the endoscope to bend the bending portion;

[0084] S400, a visual inspection unit obtains an image of the bent portion of the endoscope after being bent;

[0085] S500, the processing unit calculates the bending angle of the endoscope according to the image;

[0086] The angle between the bending portion of the endoscope and the axis of the endoscope after the bending portion is bent is represented by θ, and the bending angle of the bending portion of the endoscope is 180°-θ.

[0087] Specifically, in this embodiment, the handle of endoscope 800 is clamped and fixed to the fixing assembly 120, and the insertion portion between the bending portion and the handle of the endoscope is supported by the supporting assembly. The steering snake of endoscope 800 is controlled by the handle of endoscope 800. Then, by rotating the handle, the rotating shaft 131 is driven to rotate, which in turn drives the fixing assembly 120 and the endoscope 800 to rotate, so that the plane formed by the bent steering snake and the main body of endoscope 800 is parallel to the horizontal plane. The visual inspection unit 300 then takes a picture of the bent endoscope 800, and the computer calculates the bending angle of endoscope 800 based on the picture captured by the imaging element 310. It should be noted that after the bending of the steering snake of endoscope 800, the angle that is convenient for detection is the angle between the main body of endoscope 800 and the steering snake, which is represented by θ. The value obtained by the computer by 180°-θ is the bending angle of endoscope 800.

[0088] The present invention also includes a key switch electrically connected to the computer. The key switches include four keys 700: up, down, left, and right. For example, when detecting the top cornering angle of the steering snake, the top key 700 can be pressed to allow the computer to calculate the top cornering angle. The same principle applies to other directions.

[0089] In the present invention, the development cost of the endoscope bending angle detection device can be reduced by arranging the clamping mechanism 100, the supporting assembly 200, the visual detection unit 300 and the processing unit 400 into a split structure.

[0090] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An endoscope bending angle detection device for detecting the bending angle of a bending portion of an endoscope, characterized in that: The endoscope bending angle detection device comprises: A clamping mechanism, used for clamping and fixing the handle of the endoscope; a support assembly, spaced apart from the clamping mechanism, the support assembly being used to support the insertion portion between the bending portion and the handle of the endoscope; a visual detection unit, provided on the support assembly and located above the bent portion of the endoscope, for acquiring an image of the bent portion of the endoscope; A processing unit is communicatively connected to the visual detection unit, and the processing unit is capable of detecting the bending angle of the bending portion based on the image acquired by the visual detection unit.

2. The endoscope bending angle detection device according to claim 1, characterized in that: The clamping mechanism comprises: base; a fixing assembly rotatably disposed on the base, the fixing assembly being capable of clamping and fixing the handle of the endoscope; The rotating assembly is rotatably connected to the base, and the rotating assembly is connected to the fixed assembly to drive the fixed assembly to rotate relative to the base.

3. The endoscope bending angle detection device according to claim 2, characterized in that: The base includes a bottom plate and two spaced support plates fixedly connected to the bottom plate; the rotating assembly includes: A rotating shaft rotatably connected to the two support plates, one end of the rotating shaft being fixedly connected to the fixing assembly; A handwheel is fixedly connected to the other end of the rotating shaft.

4. The endoscope bending angle detection device according to claim 3, characterized in that: The fixing assembly includes: A support seat, configured with an accommodating groove for accommodating the handle of the endoscope; A limiting plate has one end hinged to one side of the support base and the other end snap-connected to the support base. The handle of the endoscope can be pressed between the limiting plate and the support base.

5. The endoscope bending angle detection device according to claim 4, characterized in that: The fixing assembly further comprises: A connecting plate, the support seat is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the rotating shaft.

6. The endoscope bending angle detection device according to any one of claims 1 to 5, characterized in that: The support assembly comprises: base; A support block is fixedly connected to the base, and a limiting groove is constructed on the support block, and the insertion portion of the endoscope is supported in the limiting groove; a cover plate, arranged on the limiting groove to limit the insertion portion of the endoscope from being separated from the limiting groove; Wherein, the insertion portion of the endoscope can rotate relative to the support block in the limiting groove.

7. The endoscope bending angle detection device according to claim 6, characterized in that: The endoscope bending angle detection device also includes a detection platform, which is arranged on the base. The detection platform is provided with a limiting groove, and the connection between the bending part and the insertion part of the endoscope is accommodated in the limiting groove. The bending part of the endoscope is bent on the detection platform.

8. The endoscope bending angle detection device according to claim 7, characterized in that: The endoscope bending angle detection device also includes: A backlight panel is provided between the detection platform and the base, and is used to adjust the brightness of light on the detection platform.

9. The endoscope bending angle detection device according to claim 6, characterized in that: The visual detection unit includes: Camera element; A connecting component is provided on the base, the imaging element is connected to the connecting component, and the portion of the connecting component connected to the imaging element can move up and down relative to the bending portion of the endoscope.

10. The endoscope bending angle detection device according to claim 9, characterized in that: The connection component includes: A fixing seat, fixedly connected to the base; a driving rod rotatably connected to the fixing seat; A slider is in transmission connection with the driving rod, and the imaging element is fixedly connected to the slider; When the driving rod rotates relative to the fixing seat, the sliding block moves along the axial direction of the driving rod.

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