Portable rotation angle measuring device applied to endoscope

Abstract

The portable rotation angle measuring device comprises a base, a measuring seat, a clamping assembly and an indicating piece, the measuring seat is installed on the base in a turnover mode and has a working state that the measuring seat is turned to an included angle with the base, the measuring seat is provided with an assembly hole in a penetrating mode, and the measuring seat is sequentially provided with a plurality of angle marks on the outer side of the assembly hole; the clamping assembly is rotatably mounted in the assembly hole, the clamping assembly penetrates through the clamping hole, and the insertion pipe is fixed in the clamping hole; the indicating piece is fixed to one side of the clamping assembly, so that when the inserting pipe is driven by external force to rotate, the indicating piece is driven to rotate synchronously, and the corresponding angle mark is indicated. According to the utility model, by turning over the measuring seat, the clamping assembly and the indicating piece can be driven to turn over to a required orientation; by operating the insertion pipe to rotate relative to the operation main body, the indicating piece can be driven to rotate to a corresponding angle to be marked, the purpose of visual indication of the rotation angle is achieved, and disassembly, assembly, maintenance, transfer, storage and the like are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscope rotation angle measurement, in particular to a portable rotation angle measurement device used for an endoscope. Background Art

[0002] Nowadays, endoscopes are widely used in medical treatment. There are many types of endoscopes, including flexible endoscopes. The insertion tube of a flexible endoscope is made of soft material and can be bent. Among the flexible endoscopes, a large proportion are ultra-fine endoscopes. The outer diameter of the insertion tube of this type of endoscope is slender, and the internal space of the tube body is more compact. Therefore, the bending portion of the insertion tube of this type of endoscope can generally only achieve a two-way bending function. However, for the user, the insertion tube can only achieve two-way bending, which cannot meet the needs of use. At this time, the entire insertion tube needs to be rotated relative to the operating part to achieve an axial rotation effect similar to four-way bending. The specific way to achieve the rotation function of the insertion tube is that there is a special structure on the endoscope operating handle for driving the insertion tube to rotate. The structure can rotate and is fixed to the insertion tube. The structure is referred to as the operating knob below.

[0003] For the endoscope with the insertion tube rotation function, the rotatable angle has technical parameter indicators, and generally the market has range indicators such as ±90° or ±120°. Therefore, there is a need to measure the rotation angle of the insertion tube during the production and testing of endoscopes. The existing measurement technology and measurement equipment generally measure the rotation of the operating knob. Due to transmission loss, it is impossible to truly reflect the rotation angle of the insertion tube, especially the distal tube section. In particular, the angle of ultra-fine endoscopes often deviates more. Because endoscopes with large angle deviations may flow into the market, the deviation between the declared value and the actual value of the insertion tube rotation angle will be large, affecting the use of doctors. In addition, the structure of the existing measurement equipment is relatively complex, which is not conducive to daily disassembly and maintenance and transfer and storage. Utility Model Content

[0004] The main purpose of the utility model is to provide a portable rotation angle measuring device for endoscopes, aiming to solve the problem that traditional measuring equipment is not conducive to daily disassembly, maintenance, transfer and storage.

[0005] To achieve the above objectives, the present invention proposes a portable rotation angle measuring device for an endoscope, comprising:

[0006] base;

[0007] The measuring base is flippably mounted on the base in directions close to and away from the base, and has a working state in which it is flipped to form an angle with the base. The measuring base has an assembly hole extending along its thickness, and a plurality of angle markings are sequentially provided on the outer sides of the assembly hole.

[0008] a clamping assembly rotatably mounted on the assembly hole around a central axis of the assembly hole, the clamping assembly being provided with a clamping hole along the central axis of the assembly hole, the clamping hole being used to connect and fix an insertion tube of the endoscope; and

[0009] An indicator is connected and fixed to one radial side of the clamping assembly along the assembly hole, so that when an external force drives the insertion tube to rotate, the indicator is driven to rotate synchronously and indicates the corresponding angle mark.

[0010] Optionally, the base and the measuring seat are both in a plate or sheet shape.

[0011] Optionally, the base has a first edge, and the measuring seat is mounted on the first edge in a flippable manner in a direction approaching and away from the base;

[0012] The base can be flipped toward the direction close to the base to be folded with the base and is in a storage state.

[0013] Optionally, the base has a first edge, and the measuring seat is mounted on the first edge in a flippable manner in a direction approaching and away from the base;

[0014] The base can be flipped in a direction away from the base to be located beside the base and flush with the base, in a storage state.

[0015] Optionally, the portable rotation angle measuring device for endoscopes further includes a connecting structure and a docking structure, one of the connecting structure and the docking structure is provided on the base, and the other is provided on the measuring seat, so that when the measuring seat is in the storage state, the connecting structure and the docking structure are connected and cooperated to limit the movement of the measuring seat to the working state.

[0016] Optionally, when in the storage state, surfaces of the base and the measuring seat on one side close to each other are matched with each other in concave and convex shapes.

[0017] Optionally, the portable rotation angle measuring device for endoscopes further includes a quick-connect structure. When in the stored state, the quick-connect structure is exposed and used to connect and fix with a carrier carried by the portable rotation angle measuring device for endoscopes.

[0018] Optionally, the portable rotation angle measuring device for endoscope further includes a locking structure and a matching structure, wherein:

[0019] One of the locking structure and the matching structure is provided on the base, and the other is provided on the measuring seat, so that when the locking structure and the matching structure are connected, the turning movement of the measuring seat relative to the base is locked; and / or,

[0020] One of the locking structure and the matching structure is provided on the measuring seat, and the other is provided on the clamping assembly and / or the indicator, so that when the locking structure and the matching structure are connected, the rotational movement of the clamping assembly and / or the indicator relative to the measuring seat is locked.

[0021] Optionally, the angle marks are divided into two groups, and the two groups of angle marks are symmetrically arranged about a diameter of the assembly hole.

[0022] Optionally, the clamping assembly includes:

[0023] a ball bearing, mounted in the assembly hole;

[0024] a connector having the clamping hole extending along the central axis of the assembly hole, the connector comprising a first connector segment, a second connector segment, and a third connector segment connected in sequence along the central axis of the assembly hole, the first connector segment being fixedly mounted on the inner side of the ball bearing, the outer peripheral side wall of the second connector segment being provided with an external thread, the outer peripheral side wall of the third connector segment being sequentially provided with slots connected to the clamping hole along its circumference, the slots extending along the central axis of the assembly hole to an end portion passing through the third connector segment, so as to separate the third connector segment into a plurality of arms;

[0025] A locking cap having a sleeve hole extending along the central axis of the assembly hole, the sleeve hole comprising a first hole section and a second hole section sequentially connected along the central axis of the assembly hole, the first hole section being provided with an internal thread cooperating with the external thread, the second hole section being arranged with an inner diameter decreasing in a direction away from the first hole section, the first hole section being translationally movable along the central axis of the assembly hole and rotatably sleeved on the outer side of the second joint section around an axis extending along the central axis of the assembly hole, so as to drive the second hole section to squeeze and gather the support arms, and release and reset the support arms during its movement; and,

[0026] An elastic ring is passed through the clamping hole and is arranged at least corresponding to the third joint segment. The outer diameter of the elastic ring is not less than the minimum aperture of the second hole segment, and the inner diameter of the elastic ring is not greater than the minimum aperture of the second hole segment.

[0027] In the technical solution provided by the present invention, the base is mounted on a carrier; by flipping the measuring seat, the clamping assembly and the indicator can be flipped to the desired orientation; when rotational measurement is required, by, for example, manually holding the operating body and operating the insertion tube to rotate relative to the operating body, the clamping assembly and the indicator can be driven to rotate relative to the measuring seat in turn, and the indicator can be rotated to the corresponding angle to mark, thereby achieving the purpose of visual indication of the rotation angle; the present application has the characteristics of simple structure, small size and light weight, and is more convenient for disassembly, assembly, maintenance, transfer and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0029] Figure 1 A schematic three-dimensional diagram of an embodiment of the portable rotation angle measuring device for endoscopes provided by the present invention applied to an endoscope;

[0030] Figure 2 for Figure 1 A three-dimensional schematic diagram of a portable rotation angle measuring device for endoscopes;

[0031] Figure 3 for Figure 1 Schematic diagram of the main structure of the portable rotation angle measurement device used in endoscopes;

[0032] Figure 4 for Figure 3 A schematic longitudinal section diagram of a portable rotation angle measuring device for endoscopes.

[0033] Description of Figure Numbers:

[0034] 100 base; 110 first edge; 200 measuring seat; 210 assembly hole; 300 clamping assembly; 310 ball bearing; 320 joint member; 320a clamping hole; 321 first joint section; 322 second joint section; 322a external thread; 323 third joint section; 323a slot; 323b support arm; 324 stop step; 330 locking cap; 331 first hole section; 331a internal thread; 332 second hole section; 340 elastic ring member; 400 indicator; 500 quick-connect structure; 6 endoscope; 61 operating body; 62 insertion tube; 63 operating knob.

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] In view of the above, conventional endoscopes 6 generally comprise an operating body 61, an insertion tube 62, and an operating knob 63 connecting the operating body 61 and the insertion tube 62. The operating body 61 is typically manually operated by medical personnel and does not involve the patient's body during surgery. The insertion tube 62 is inserted into the front end of the operating body 61. Manual rotation of the operating knob 63 by the medical personnel drives the insertion tube 62 to rotate in the same direction.

[0040] The present invention provides a portable rotation angle measuring device for an endoscope 6, specifically a device primarily used to measure the rotation angle of the aforementioned operating knob 63 and / or insertion tube 62. Compared to prior art techniques that only measure the rotation angle of the operating knob 63 and then infer the rotation angle of the insertion tube 62, the present invention helps improve the accuracy of measuring the rotation angle of the insertion tube 62. For ease of understanding, the following embodiments will be described using the portable rotation angle measuring device for an endoscope 6 as an example of measuring the rotation angle of the insertion tube 62.

[0041] Please refer to the following for details: Figures 1 to 4 The portable rotation angle measuring device for endoscope 6 provided by the present invention includes a base 100, a measuring seat 200, a clamping assembly 300 and an indicator 400.

[0042] The measuring seat 200 is movably mounted on the base 100 in a flippable manner in directions close to and away from the base 100, and has a working state of being flipped to be set at an angle to the base 100. The measuring seat 200 is provided with an assembly hole 210 along its thickness direction, and the measuring seat 200 is provided with multiple angle marks in sequence on the outside of the assembly hole 210; the clamping component 300 is rotatably mounted on the assembly hole 210 around the central axis of the assembly hole 210, and the clamping component 300 is provided with a clamping hole 320a along the central axis of the assembly hole 210, and the clamping hole 320a is used to connect and fix the insertion tube 62 of the endoscope 6; the indicator 400 is connected and fixed to the clamping component 300 along the radial side of the assembly hole 210, so that when an external force drives the insertion tube 62 to rotate, the indicator 400 is driven to rotate synchronously and indicate the corresponding angle mark.

[0043] In the technical solution provided by the present invention, the base 100 is mounted on a carrier; by flipping the measuring seat 200, the clamping assembly 300 and the indicator 400 can be flipped to the required orientation; when rotation measurement is required, by, for example, manually holding the operating body 61 and operating the insertion tube 62 to rotate relative to the operating body 61, the clamping assembly 300 and the indicator 400 can be driven to rotate relative to the measuring seat 200 in turn, and the indicator 400 can be rotated to the corresponding angle mark, thereby achieving the purpose of visual indication of the rotation angle; the present application has the characteristics of simple structure, small size and light weight, and is more convenient for disassembly, assembly, maintenance, transfer and storage.

[0044] In the present application, the base 100 can be mainly used to integrate the measuring seat 200, the clamping assembly 300 and the indicator 400 into a whole, and it is convenient for the portable rotation angle measuring device used for the endoscope 6 to be mounted on the carrier in actual application, and then the operator can use the carrier to measure the rotation angle of the insertion tube 62 of the endoscope 6.

[0045] It will be appreciated that the measuring base 200 is capable of flipping relative to the base 100. Specifically, the measuring base 200 can be rotatably mounted at any position on the base 100, such as at any edge of the base 100 or near the center of the base 100. The measuring base 200 can be rotatably mounted to the base 100 via, for example, a rotating shaft structure. For example, as shown in the accompanying drawings, the measuring base 200 can be rotatably mounted to the base 100 via a hinge structure.

[0046] During the flipping process of the measuring base 200 relative to the base 100, the measuring base 200 can be tilted to an operating state at an angle to the base 100. This angle is not equal to 0°, 180°, or 360°. This means that the measuring base 200 is tilted relative to the base 100. For ease of understanding, the direction of the central axis of the mounting hole 210 on the measuring base 200 in the operating state is defined as the first direction. When the insertion tube 62 or operating knob 63 of the endoscope 6 is mounted on the portable rotation angle measuring device for the endoscope 6, the first direction generally corresponds to the extension direction between the operating body 61 and the insertion tube 62 of the endoscope 6.

[0047] In actual application scenarios of the endoscope 6, the operating body 61 and the insertion tube 62 generally extend approximately horizontally. Therefore, to better reflect the actual application posture of the endoscope 6, in this application, the first direction may specifically refer to the horizontal direction. In this case, the carrier can be a convenient placement surface, such as a tabletop or the floor. Since the measuring base 200, the clamping assembly 300, and the indicator needle are all protruding from the same side of the base 100, the base 100 is essentially connected to the carrier on the side facing away from the measuring base 200, the clamping assembly 300, and the indicator needle. Furthermore, the base 100 is also provided with an assembly structure, which can be specifically located on the side of the base 100 facing away from the measuring base 200, the clamping assembly 300, and the indicator needle. The assembly structure is configured to facilitate the connection between the base 100 and the carrier. Examples include, but are not limited to, one or more support columns for leveling, anti-slip padding for anti-skid operation, and universal wheels for free movement.

[0048] Of course, in specific applications, the first direction can also be the direction of gravity. Thus, when the portable rotation angle measuring device for endoscope 6 is mounted on endoscope 6, the insertion tube 62 can be maintained to naturally droop under the action of gravity. When the portable rotation angle measuring device for endoscope 6 is activated to measure the rotation angle of the insertion tube 62, the insertion tube 62 is substantially unaffected by lateral external forces, thereby reducing the impact of lateral deformation of the insertion tube 62 on the accuracy of the measurement results.

[0049] When the first direction is the direction of gravity, the carrier supported by the base 100 may specifically be, but is not limited to, a wall, a door, a cabinet, or the like. Similarly, since the measuring base 200, the clamping assembly 300, and the indicator needle are all protruding from the same side of the base 100, that is, the side of the base 100 facing away from the measuring base 200, the clamping assembly 300, and the indicator needle is essentially connected to the carrier. Furthermore, the base 100 is further provided with an assembly structure, which may be specifically located on the side of the base 100 facing away from the measuring base 200, the clamping assembly 300, and the indicator needle, and / or at an end of the base 100 proximal to the measuring base 200. The assembly structure is configured to facilitate connection between the base 100 and the carrier, and may include, but is not limited to, a hanging loop structure for hanging from a hook fixed to the carrier, an adhesive layer structure for attaching to a vertical surface of the carrier, a magnetic structure or a suction cup structure for adsorption to a vertical surface of the carrier, and the like.

[0050] Of course, regardless of the orientation of the carrier, the specific orientation of the first direction can be adjusted by directly adjusting the flip angle range of the measuring seat 200 relative to the base 100 .

[0051] In addition, during the flipping process of the measuring base 200 relative to the base 100, the measuring base 200 can be flipped to a storage state substantially overlapping or parallel to the base 100, for example, to 0°, 180°, and 360°.

[0052] Specifically, in one embodiment, the base 100 has a first edge 110, and the measuring base 200 is mounted on the first edge 110, capable of being flipped and moved toward and away from the base 100. The base 100 can be flipped toward the base 100 to fold with the base 100, thus folding into a stowed position. Specifically, in the stowed position, the measuring base 200 can be flipped to either 0° or 360°. This helps substantially reduce the overall length and / or width of the portable rotation angle measuring device for endoscope 6 in the stowed position, making it more convenient to store.

[0053] Alternatively, in one embodiment, the base 100 has a first edge 110, and the measuring base 200 is mounted on the first edge 110, reversibly moving toward and away from the base 100. The base 100 can be flipped away from the base 100 to be positioned beside the base 100 and flush with the base 100, in the stowed state. Specifically, in the stowed state, the measuring base 200 flips 180 degrees. This helps substantially reduce the overall thickness of the portable rotation angle measuring device for endoscope 6 in the stowed state, making it more convenient to store.

[0054] In view of the above, the base 100 and the measuring base 200 can be configured to be plate-shaped or sheet-shaped. In other words, the thickness of the base 100 and the measuring base 200 can be minimized, thereby ensuring that the portable rotation angle measuring device for the endoscope 6 is compact and lightweight, whether in operation or in storage.

[0055] In view of the above, the portable rotation angle measuring device applied to the endoscope 6 also includes a connecting structure and a docking structure, one of which is provided on the base 100, and the other is provided on the measuring seat 200, so that when the measuring seat 200 is in the storage state, the connecting structure and the docking structure are connected and matched to limit the movement of the measuring seat 200 to the working state. The specific scheme of the connecting structure and the docking structure is not limited, and can be but not limited to: one of the connecting structure and the docking structure is a snap-fit ​​part, and the other is a button hole structure, and the snap-fitting of the snap-fit ​​part and the button hole structure helps to achieve the connection between the connecting structure and the docking structure. Or one of the connecting structure and the docking structure is a magnetic part, and the other is another magnetic part or a structure containing iron, cobalt and nickel, and magnetic adsorption helps to achieve the connection between the connecting structure and the docking structure. Or both the connecting structure and the docking structure are complementary adhesive structures, and bonding helps to achieve the connection between the connecting structure and the docking structure, etc. When the connection structure and the docking structure are connected, the measuring base 200 and the base 100 can be maintained in the storage state, preventing the measuring base 200 from flipping to the working state due to external force vibration, which is not conducive to storage and transfer.

[0056] When the measuring base 200 and the base 100 are in the 0° or 360° storage state as described above, that is, when the measuring base 200 and the base 100 are folded, the concave and convex surfaces of the base 100 and the measuring base 200 that are adjacent to each other are matched. In other words, when one of the base 100 and the measuring base 200 has a convex structure, the other has a matching concave structure at the corresponding position. This ensures that the base 100 and the measuring base 200 fit together perfectly when folded, thereby greatly reducing the overall size of the portable rotation angle measurement device for endoscope 6.

[0057] In addition, the portable rotation angle measuring device for endoscope 6 further includes a quick-connect structure 500. When in the storage state, the quick-connect structure 500 is exposed and is used to connect and fix with the carrier carried by the portable rotation angle measuring device for endoscope 6. The above-mentioned assembly structure is more suitable for the portable rotation angle measuring device for endoscope 6 when it is in the working state, while the quick-connect structure 500 is more suitable for the portable rotation angle measuring device for endoscope 6 when it is in the storage state. Since the portable rotation angle measuring device for endoscope 6 in the present application has the characteristics of small size and light weight, the quick-connect structure 500 can realize the quick connection between the portable rotation angle measuring device for endoscope 6 and the carrier. The carrier here may be different from the above-mentioned carrier and is a carrier in a storage environment. If an overlapping structure is defined on the carrier, one of the quick-connect structure 500 and the overlapping structure can be a hook, and the other can be a hanging ring, and the hook and the hanging ring can be hung on each other; one of the quick-connect structure 500 and the overlapping structure can be a fastener, and the other can be a buckle hole, and the fastener and the buckle groove can be buckled with each other, etc.

[0058] Furthermore, in one embodiment, the portable rotation angle measuring device for the endoscope 6 further includes a locking structure and a matching structure.

[0059] In one embodiment, one of the locking structure and the mating structure is provided on the base 100, while the other is provided on the measuring base 200. When the locking structure and the mating structure are connected, the measuring base 200 is locked from tilting relative to the base 100. For example, during a measurement, after the measuring base 200 is tilted to a target angle, the locking structure and the mating structure are connected to lock the tilted position, thereby reserving sufficient time for the operator to perform subsequent clamping operations, measurement operations, etc., and preventing the measuring base 200 from further tilting relative to the base 100, which could result in inaccurate measurements.

[0060] And / or in one embodiment, one of the locking structure and the mating structure is provided on the measuring base 200, while the other is provided on the clamping assembly 300 and / or the indicator 400. When the locking structure and the mating structure are connected, the rotation of the clamping assembly 300 and / or the indicator 400 relative to the measuring base 200 is locked. For example, during a measurement process, after the insertion tube 62 is rotated a certain angle, when the angle of rotation needs to be measured, the locking structure and the mating structure can be connected to lock the current rotation state of the indicator 400, thereby reserving sufficient time for the operator to measure, record, and analyze the measurement.

[0061] Furthermore, the measuring base 200 is provided with a plurality of angle markings spaced around the outer periphery of the assembly hole 210. These angle markings, for example, represent characteristic angle values ​​ranging from 0° to any desired angle. Specifically, when the insertion tube 62 is rotatable in both forward and reverse directions relative to the operating body 61, the angle markings can be two sets of angle values ​​ranging from 0° to 180°. These two sets of angle markings are arranged symmetrically about a radial direction of the assembly hole 210. This ensures that when angle measurements are required for the forward and reverse rotation states of the insertion tube 62, the angle values ​​corresponding to these angles are independently 0° to 180°.

[0062] The clamping assembly 300 can be directly rotatably mounted within the assembly hole 210. Its shape and dimensions are adapted to those of the assembly hole 210, enabling a sliding connection between the outer wall of the clamping assembly 300 and the wall of the assembly hole 210. Alternatively, in one embodiment, the clamping assembly 300 further includes a rolling element, by which the clamping assembly 300 is rollingly mounted within the assembly hole 210. The rolling element can be, for example, a plurality of balls, or directly provided as a ball bearing 310. The ball bearing 310 helps reduce friction when the clamping assembly 300 rotates relative to the assembly hole 210, thereby minimizing deviation in the measurement of the rotation angle of the insertion tube 62.

[0063] Specifically, in one embodiment, the clamping assembly 300 includes a connector 320 and a locking cap 330. The connector 320 is provided with a clamping hole 320a along a first direction. The connector 320 includes a first connector segment 321, a second connector segment 322, and a third connector segment 323 sequentially connected along the first direction. The first connector segment 321 is fixedly mounted on the inner side of the ball bearing 310. The outer peripheral sidewall of the second connector segment 322 is provided with an external thread 322a. The outer peripheral sidewall of the third connector segment 323 is sequentially provided with slots 323a connected to the clamping hole 320a along its circumference. The slots 323a extend along the first direction to the end portion of the third connector segment 323, thereby dividing the third connector segment 323 into a plurality of arms 323. 23b; The locking cap 330 is provided with a sleeve hole along the first direction, and the sleeve hole includes a first hole section 331 and a second hole section 332 connected in sequence along the first direction, the first hole section 331 is provided with an internal thread 331a that cooperates with the external thread 322a, and the second hole section 332 is set with an inner diameter decreasing in the direction away from the first hole section 331. The first hole section 331 can be translated in the first direction and can be rotatably sleeved on the outer side of the second joint section 322 around an axis extending along the first direction, so as to drive the second hole section 332 to squeeze and gather the support arms 323b and release and reset the support arms 323b during its movement.

[0064] In practical applications, the reduction in the size of the second hole section 332 can be a beveled or curved surface, or can be stepped. When the user rotates the first hole section 331 of the locking cap 330 relative to the second joint section 322, the larger portion of the second hole section 332 can be moved into or out of contact with the support arms 323b of the third joint section 323. Each support arm 323b can be slightly deformed or reset to its original position, thereby increasing the diameter of the clamping hole 320a and facilitating smooth insertion of the insertion tube 62. On the contrary, when the user operates the first hole section 331 of the locking cap 330 to screw in relative to the second joint section 322, the smaller aperture portion of the second hole section 332 can be driven to contact the support arm 323b of the third joint section 323, applying a centripetal extrusion force to each support arm 323b, and each support arm 323b forms a larger gathering deformation, so that the aperture of the clamping hole 320a is reduced, and the insertion tube 62 inserted into the clamping hole 320a can be clamped.

[0065] Furthermore, at least the portion of the connector 320 defining the clamping hole 320a is made of an elastic material; and / or the clamping assembly 300 further includes an elastic ring 340, which is disposed within the clamping hole 320a and corresponds to at least the third connector segment 323. Thus, the elastic material and / or elastic ring layer protects the insertion tube 62 when the clamping hole 320a is used to clamp the insertion tube 62, preventing structural damage to the insertion tube 62. The outer diameter of the elastic ring 340 is no less than the minimum diameter of the second hole segment 332, and the inner diameter of the elastic ring 340 is no greater than the minimum diameter of the second hole segment 332. This helps prevent the elastic ring 340 from dislodging from the opening of the second hole segment 332, while ensuring that the second hole segment 332 does not come into contact with the outer wall of the insertion tube 62, with only the elastic ring 340 in contact.

[0066] In view of the above, the external thread 322a is provided on the second joint segment 322. The dimension of the external thread 322a along the first direction substantially determines the threaded depth of the locking cap 330 relative to the joint member 320, that is, the degree of deformation of the clamping hole 320a. To limit the maximum degree of deformation of the clamping hole 320a, in one embodiment, the outer diameter of the second joint segment 322 is smaller than the outer diameter of the adjacent first joint segment 321, thereby forming a stop step 324 between the first joint segment 321 and the second joint segment 322. When the stop step 324 abuts the locking cap 330, it limits the translational movement of the locking cap 330 in the corresponding direction. Thus, the stop step 324 helps prevent the threaded connection between the second hole segment 332 and the second joint segment 322 from being too deep, thereby preventing the clamping hole 320a from exerting excessive clamping force on the insertion tube 62.

[0067] The indicator 400 is linked to the clamping assembly 300, and specifically can be fixedly connected so as to achieve synchronous rotation with the clamping assembly 300. The indicator 400 can be specifically formed as one piece with some components in the clamping assembly 300 (such as the above-mentioned connector 320), or can be detachably or non-detachably connected after being separately formed. The indicator 400 extends radially along the assembly hole 210 to at least partially protrude from the assembly hole 210, and is as close as possible to the annular area where the various angle marks are located. The indicator 400 can specifically be a needle-shaped structure, and can be set to be as thin as possible to help reduce the mass, so that the obstruction of the indicator 400 to the rotation of the clamping assembly 300 / insertion tube 62 is minimized, and the actual rotation state of the insertion tube 62 is restored as realistically as possible.

[0068] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A portable rotation angle measuring device for endoscope, characterized in that: include: base; The measuring base is flippably mounted on the base in directions close to and away from the base, and has a working state in which it is flipped to form an angle with the base. The measuring base has an assembly hole extending along its thickness, and a plurality of angle markings are sequentially provided on the outer sides of the assembly hole. a clamping assembly rotatably mounted on the assembly hole around a central axis of the assembly hole, the clamping assembly being provided with a clamping hole along the central axis of the assembly hole, the clamping hole being used to connect and fix an insertion tube of the endoscope; as well as, An indicator is connected and fixed to one radial side of the clamping assembly along the assembly hole, so that when an external force drives the insertion tube to rotate, the indicator is driven to rotate synchronously and indicates the corresponding angle mark.

2. The portable rotation angle measuring device for endoscope according to claim 1, characterized in that: The base and the measuring seat are both in the shape of a plate or a sheet.

3. The portable rotation angle measuring device for endoscope according to claim 1, characterized in that: The base has a first edge, and the measuring seat is mounted on the first edge in a flippable manner in a direction close to and away from the base; The base can be flipped toward the direction close to the base to be folded with the base and is in a storage state.

4. The portable rotation angle measuring device for endoscope according to claim 1, characterized in that: The base has a first edge, and the measuring seat is mounted on the first edge in a flippable manner in a direction close to and away from the base; The base can be flipped in a direction away from the base to be located beside the base and flush with the base, in a storage state.

5. The portable rotation angle measuring device for endoscope according to claim 3 or 4, characterized in that: The portable rotation angle measuring device for endoscopes also includes a connecting structure and a docking structure, one of which is provided on the base, and the other is provided on the measuring seat, so that when the measuring seat is in the storage state, the connecting structure and the docking structure are connected and cooperated to limit the movement of the measuring seat to the working state.

6. The portable rotation angle measuring device for endoscope according to claim 3 or 4, characterized in that: When in the storage state, the surfaces of the base and the measuring seat on one side close to each other are matched with each other in a concave-convex manner.

7. The portable rotation angle measuring device for endoscope according to claim 3 or 4, characterized in that: The portable rotation angle measuring device for endoscopes further comprises a quick-connect structure. When in the storage state, the quick-connect structure is exposed and used to be connected and fixed to a carrier carried by the portable rotation angle measuring device for endoscopes.

8. The portable rotation angle measuring device for endoscope according to claim 1, characterized in that: The portable rotation angle measuring device for endoscope further includes a locking structure and a matching structure, wherein: One of the locking structure and the matching structure is provided on the base, and the other is provided on the measuring seat, so that when the locking structure and the matching structure are connected, the turning movement of the measuring seat relative to the base is locked; and / or, One of the locking structure and the matching structure is provided on the measuring seat, and the other is provided on the clamping assembly and / or the indicator, so that when the locking structure and the matching structure are connected, the rotational movement of the clamping assembly and / or the indicator relative to the measuring seat is locked.

9. The portable rotation angle measuring device for endoscope according to claim 1, characterized in that: The angle marks are divided into two groups, and the two groups of angle marks are symmetrically arranged about a diameter of the assembly hole.

10. The portable rotation angle measuring device for endoscope according to claim 1, characterized in that: The clamping assembly comprises: a ball bearing, mounted in the assembly hole; a connector having the clamping hole extending along the central axis of the assembly hole, the connector comprising a first connector segment, a second connector segment, and a third connector segment connected in sequence along the central axis of the assembly hole, the first connector segment being fixedly mounted on the inner side of the ball bearing, the outer peripheral side wall of the second connector segment being provided with an external thread, the outer peripheral side wall of the third connector segment being sequentially provided with slots connected to the clamping hole along its circumference, the slots extending along the central axis of the assembly hole to an end portion passing through the third connector segment, so as to separate the third connector segment into a plurality of arms; A locking cap having a sleeve hole extending along the central axis of the assembly hole, the sleeve hole comprising a first hole section and a second hole section sequentially connected along the central axis of the assembly hole, the first hole section being provided with an internal thread cooperating with the external thread, the second hole section being arranged with an inner diameter decreasing in a direction away from the first hole section, the first hole section being translationally movable along the central axis of the assembly hole and rotatably sleeved on the outer side of the second joint section around an axis extending along the central axis of the assembly hole, so as to drive the second hole section to squeeze and gather the support arms, and release and reset the support arms during its movement; and, An elastic ring is passed through the clamping hole and is arranged at least corresponding to the third joint segment. The outer diameter of the elastic ring is not less than the minimum aperture of the second hole segment, and the inner diameter of the elastic ring is not greater than the minimum aperture of the second hole segment.

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