Operating handle and endoscope

Abstract

The utility model discloses an operating handle and an endoscope, the operating handle comprises a shell, a coiling mechanism and an interference mechanism, and the shell comprises two plate bodies which define a mounting cavity; the winding mechanism comprises a winder and a pull wire, so that the winding mechanism is driven to move in the rotating process of the winder, and the insertion pipe can move in a lateral bending manner; the interference mechanism comprises an interference part and a pressing part which are sequentially arranged in the axial direction of the winder, the interference part is fixedly connected with the adjacent plate body, the surface of one axial end of the interference part is a concave-convex surface, the concave-convex surface comprises a first outer convex surface, a second outer convex surface and an inner concave surface, and the protruding height of the second outer convex surface in the axial direction is larger than that of the first outer convex surface; the abutting piece comprises a moving part capable of moving on the concave-convex face and an interference part abutting against the surface of the shaft end of the winder, the moving part moves on the first outer convex face, the second outer convex face and the inner concave face, and the axial abutting force of the interference part on the winder is driven to be adjustable. According to the utility model, the unlocking modes of the endoscope are more diversified.

Description

Technical Field

[0001] This utility model relates to the field of endoscope technology, specifically to an operating handle and an endoscope. Background Technology

[0002] Existing endoscopes generally consist of an operating handle and an insertion tube. The insertion tube is inserted into the patient's body to the affected area; the operating handle is external and allows medical personnel to operate the insertion tube for observation, examination, and treatment of the affected area. In practical applications, the tip of the insertion tube is equipped with necessary devices such as imaging and illumination. To assist in treatment, the insertion tube needs to be bent laterally to a certain angle, and this bending angle needs to be locked and finely adjusted to adjust the tip to a preset position. Currently, most endoscopes on the market only have a locked and unlocked state, lacking a semi-locked state function. A semi-locked state can be understood as the bending section of the insertion tube being suspended at the current bending angle. In the semi-locked state, the operator can still adjust the bending angle of the bending section without needing to unlock it, increasing the number of surgical steps and significantly increasing operator fatigue. Utility Model Content

[0003] The main purpose of this invention is to propose an operating handle and endoscope, which aims to solve the problem that traditional endoscopes have a single locking method and cannot achieve a semi-locked state.

[0004] To achieve the above objectives, this utility model proposes an operating handle, comprising:

[0005] The outer casing includes two connected plates that enclose and define a mounting cavity.

[0006] A winding mechanism includes a winding reel and a traction cable. The winding reel is rotatably mounted within the mounting cavity about an axis extending along the connection direction of the two housings. The traction cable is movably wound around the outer periphery of the winding reel, with its free section extending outward from the mounting cavity and connected to the insertion tube of an endoscope, so as to be moved during rotation of the winding reel, allowing the insertion tube to bend laterally.

[0007] An interference mechanism includes interference members and pressing members arranged sequentially along the axial direction of the winding reel. The interference members are connected and fixed to the adjacent plate, and one axial end surface of the interference members is a concave-convex surface. The concave-convex surface includes a first convex surface, a second convex surface, and an inner concave surface. The convex height of the second convex surface along the axial direction is greater than the convex height of the first convex surface. The pressing member includes a movable part that can move along the concave-convex surface and an interference part that abuts against the axial end surface of the winding reel. Under the drive of an external force, the movable part can move along the first convex surface, the second convex surface, and the inner concave surface respectively, so that the axial pressing force of the interference part on the winding reel is adjustable.

[0008] Optionally, the interference element is integrally formed with the plate body.

[0009] Optionally, the interference member has a mounting hole extending along the axial direction of the winding device, and the concave and convex surfaces extend along the outer periphery of the mounting hole;

[0010] The pressing member also includes a connecting part that is movably inserted through the mounting hole, and a hand-held part that is connected to the connecting part and extends out of the mounting cavity. When an external force is applied, the hand-held part rotates around the connecting part to drive the moving part to move and walk on the concave and convex surfaces.

[0011] Optionally, a clearance hole is provided at the connection between the two plates. The clearance hole extends elongatedly along the circumference of the cable reel. The cable reel mechanism also includes an operating member, which is connected to the side wall of the cable reel and extends out of the clearance hole to the outside of the mounting cavity.

[0012] The operating component and the handheld part have different structures.

[0013] Optionally, the concave surface, the first convex surface, and the second convex surface are arranged sequentially along the same circumference of the mounting hole;

[0014] The concave surface, the first convex surface, and the second convex surface are smoothly connected to each other through inclined surfaces or arc surfaces.

[0015] Optionally, the concave-convex surface further includes a third convex surface, the protrusion height of the third convex surface being greater than the protrusion height of the second convex surface, and a stop surface being formed at the connection between the two, the stop surface providing circumferential stop to the moving part.

[0016] Optionally, the concave surface, the first convex surface, and the second convex surface are respectively provided in two sets in the outer circumference of the mounting hole, and the two concave surfaces, the two first convex surfaces, and the two second convex surfaces in the two sets are respectively centrally symmetrical about the mounting hole;

[0017] The handheld part, the connecting part, and the interference part are connected sequentially along the axial direction of the winding device. Two moving parts are provided, and the two moving parts protrude from the radial sides of the connecting part.

[0018] Optionally, the pressing member includes:

[0019] The first convex shaft, the shaft section of the first convex shaft passing through the mounting hole constitutes the connecting part, the shaft end of the first convex shaft extending into the mounting cavity constitutes the interference part, and the first convex shaft is provided with a shaft hole radially between the connecting part and the interference part;

[0020] A toggle mechanism, disposed outside the housing, and anti-rotationally connected to the shaft segment extending from the first convex shaft to the mounting hole, the toggle mechanism constituting the hand grip; and,

[0021] A second convex shaft is inserted through the shaft hole, and the outer peripheral sidewall of the second convex shaft constitutes the moving part.

[0022] Optionally, the interference portion is positioned closer to the outer periphery of the winding relative to the axis of the winding.

[0023] Furthermore, to achieve the above objectives, this utility model provides an endoscope comprising:

[0024] Insertion tube; and,

[0025] The operating handle as described above.

[0026] In the technical solution provided by this utility model, since the first convex surface, the second convex surface, and the concave surface have different axial protrusion heights, when the moving part travels along the first convex surface, the second convex surface, and the concave surface respectively, it can correspondingly drive the interference part to apply at least three different axial resistance forces to the winding device, which can specifically correspond to the unlocked state, the semi-locked state, and the fully locked state of the winding device, making the unlocking method of the endoscope more diverse. Since the interference component and the outer shell are connected and fixed, it helps to simplify the overall structure, and allows the interference mechanism and the winding mechanism to be disassembled simultaneously when the two outer shells are separated; conversely, when the two outer shells are connected, the interference mechanism and the winding mechanism are installed in place simultaneously, which has the characteristics of simple structure and convenient operation. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A perspective view of an embodiment of the operating handle provided by this utility model;

[0029] Figure 2 for Figure 1 An exploded view of the main structure of the central control handle;

[0030] Figure 3 for Figure 1 A three-dimensional schematic diagram of the middle plate;

[0031] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0032] Figure 5 for Figure 4 A schematic diagram showing the local structure of the concave and convex surfaces at the interference point;

[0033] Figure 6 for Figure 1 Exploded view of the middle pressure component.

[0034] Explanation of icon numbers:

[0035] 100 Housing; 110 Plate; 120 Clearance hole; 200 Winding mechanism; 210 Winder; 220 Operating component; 300 Interference mechanism; 310 Interference component; 311 Concave surface; 312 First convex surface; 313 Second convex surface; 314 Third convex surface; 315 Stop surface; 316 Mounting hole; 320 Pressing component; 321 Actuating structure; 321a Handheld part; 322 First convex shaft; 322a Connecting part; 322b Interference part; 323 Second convex shaft; 323a Moving part.

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Please see Figures 1 to 6 This utility model provides an operating handle and an endoscope thereof. The operating handle may include a housing 100, a winding mechanism 200, and an interference mechanism 300. The housing 100 includes two connected plates 110, which together define a mounting cavity. The winding mechanism 200 includes a winding reel 210 and a traction cable. The winding reel 210 is rotatably mounted within the mounting cavity about an axis extending along the connection direction of the two housings 100. The traction cable is movably wound around the outer periphery of the winding reel 210, and its free section extends outward from the mounting cavity and connects to the endoscope's insertion tube, so that it is moved during the rotation of the winding reel 210, allowing the insertion tube to bend laterally. The interference mechanism 300 includes an interference element 310 and a pressing element 320 arranged sequentially along the axial direction of the winding reel 210. The interference element 310 and the pressing element 320... The adjacent plate 110 is fixedly connected, and one of its axial end surfaces is a concave-convex surface. The concave-convex surface includes a first outer convex surface 312, a second outer convex surface 313, and an inner concave surface 311. The axial protrusion height of the second outer convex surface 313 is greater than the protrusion height of the first outer convex surface 312. The pressing member 320 includes a movable part 323a that can move on the concave-convex surface, and an interference part 322b that abuts against the shaft end surface of the winding device 210. Under the drive of external force, the movable part 323a can move on the first outer convex surface 312, the second outer convex surface 313, and the inner concave surface 311 respectively, so that the axial pressing force of the interference part 322b on the winding device 210 can be adjusted.

[0041] In the technical solution provided by this utility model, since the first convex surface 312, the second convex surface 313, and the concave surface 311 have different axial protrusion heights, when the moving part 323a moves along the first convex surface 312, the second convex surface 313, and the concave surface 311 respectively, it can correspondingly drive the interference part 322b to apply at least three different axial resistance forces to the winding device 210, which can specifically correspond to the unlocked state, the semi-locked state, and the fully locked state of the winding device 210, making the unlocking method of the endoscope more diverse. Since the interference part 310 and the outer shell 100 are connected and fixed, it helps to simplify the overall structure, and allows the interference mechanism 300 and the winding mechanism 200 to be disassembled simultaneously when the two outer shells 100 are separated; conversely, when the two outer shells 100 are connected, the interference mechanism 300 and the winding mechanism 200 are installed in place simultaneously, which has the characteristics of simple structure and convenient operation.

[0042] It is understood that, in addition to the operating handle, the endoscope also includes an insertion tube connected to the front end of the operating handle and extending forward. The end of the insertion tube furthest from the operating handle is the tip. Depending on the actual needs, the tip may integrate, for example, an imaging device and / or an illumination device. The imaging device can capture images of the diseased area when the insertion tube is inserted into the patient's body to the diseased site. The illumination device can illuminate the diseased area.

[0043] To better adjust the position and orientation of the head end, the insertion tube is generally designed to be laterally bent and deformed, and to return to its original position. In the aforementioned winding mechanism 200, the end of the traction wire furthest from the winding device 210 passes through the insertion tube and extends towards the head end to connect and be fixed to the radial side wall of the insertion tube adjacent to the head end. This allows control of the insertion tube's lateral bending when the traction wire is wound up, and control of its return to its original position when it is released. It should be noted that the same winding device 210 can generally wind two traction wires together. Alternatively, the same winding device 210 can wind the middle section of the same traction wire, and then lead out two traction sections. These two traction sections pass through the insertion tube and are respectively connected and fixed to the radial side walls of the insertion tube, achieving separate control of the radial bending of the insertion tube on both sides.

[0044] The extension direction of the central axis of the reel 210 (hereinafter referred to as the axial direction for ease of understanding) is generally roughly perpendicular to the anteroposterior direction of the endoscope. In the operating handle, for ease of assembly and disassembly, the housing generally includes at least two plates 110. Each plate 110 is detachably connected and, when connected, collectively encloses and defines the mounting cavity. For example... Figures 1 to 6In the illustrated structure, the housing includes two plates 110, which are arranged sequentially along the axial direction of the winding reel 210. To facilitate easier rotation adjustment of the winding reel 210, in a specific embodiment, the housing also has a clearance hole 120 extending radially along one side of the winding reel 210. The clearance hole 120 is elongated along the circumference of the winding reel 210. Specifically, the clearance hole 120 can be located at the connection between the two plates 110, that is, basically located in the middle of the housing along the axial direction of the winding reel 210. The winding mechanism 200 also includes an operating member 220, one end of which extends into the mounting cavity and is connected and fixed to the radial side wall of the winding reel 210, while the other end extends out of the mounting cavity through the clearance hole 120. The operator holds the operating member 220 and moves it along the clearance hole 120, causing the winding reel 210 to rotate forward and backward around its own axis.

[0045] The interference mechanism 300 in this application can convert the axial dimensional change of the concave-convex surface into a change in the magnitude of the pressure exerted by the interference part 322b on the shaft end surface of the winding reel 210 through the pressing member 320, and then into a change in the magnitude of the anti-rotation force on the winding reel 210. Therefore, various specific designs for the interference member 310 and the pressing member 320 in the interference mechanism 300 can be provided.

[0046] Specifically, the interference member 310, the pressing member 320, and the winding reel 210 are arranged sequentially along the axial direction, but their arrangement is not limited. For example, in one embodiment, the interference member 310 and the pressing member 320 are arranged on the same side of the winding reel 210 along its axial direction. Specifically, the concave and convex surfaces of the interference member 310 can be arranged facing away from the winding reel 210. Alternatively, as shown... Figures 1 to 6 In the embodiment shown, the concave and convex surfaces of the interference member 310 are disposed facing the winding device 210.

[0047] The interference element 310 and the housing can be fixedly connected without changing their orientation. When the housing includes two plates 110 joined together axially as described above, the interference element 310 is connected and fixed to the adjacent plate 110. In this case, the interference element 310 and the plate 110 can be two separate structures independently set up, each separately formed and then connected and fixed in a detachable or non-detachable manner. Alternatively, the interference element 310 and the plate 110 can be integrally formed, for example, the interference element 310 is directly defined by at least a portion of the plate 110. In this way, on the one hand, the overall structure of the interference mechanism 300 can be made simpler; on the other hand, there is no need to reserve a certain space between the winding reel 210 and the plate 110 for the placement of the interference element 310, making the overall structure of the operating handle more compact.

[0048] Under external force, the moving part 323a in the pressing member 320 has a travel distance relative to the interfering member 310, and specifically travels along the concave and convex surfaces. The arrangement of the first convex surface 312, the second convex surface 313, and the concave surface 311 is not limited; their positions can be adjusted according to actual needs, such as the operator's gripping habits. However, in practical applications, the concave surface 311, the first convex surface 312, and the second convex surface 313 are arranged sequentially along a predetermined direction, so that when the moving part 323a travels along this predetermined direction under external force, it can drive the interfering part 322b to apply gradually increasing pressure to the winding device 210, thus forming a gradually increasing degree of locking.

[0049] The aforementioned preset direction can be a straight line, an arc, or a combination of both. That is, the movement of the moving part 323a relative to the concave and convex surfaces is not limited; it can be translation or rotation. Specifically, as follows... Figures 1 to 6 As shown, in one embodiment, the interference member 310 has a mounting hole 316 extending along the axial direction of the winding reel 210, and the concave and convex surfaces extend along the outer periphery of the mounting hole 316. The pressing member 320 also includes a connecting portion 322a that movably passes through the mounting hole 316, and a handheld portion 321a that is connected to the connecting portion 322a and extends out of the mounting cavity. When an external force is applied, the handheld portion 321a rotates around the connecting portion 322a, thereby driving the moving portion 323a to move along the concave and convex surfaces. When the interference member 310 is directly defined by the plate 110, the mounting hole 316 is also a hole structure directly passing through the plate 110. At this time, the handheld portion 321a is located outside the housing to facilitate operation by the operator. The connecting portion 322a extends elongatedly along the rotation axis of the pressing member 320 as a whole and passes through the mounting hole 316. Both the moving part 323a and the interfering part 322b are connected to the connecting part 322a and are located within the mounting cavity. The size of the handle part 321a is generally set to be larger than the diameter of the mounting hole 316, so that the handle part 321a can remain protruding outside the mounting cavity. Correspondingly, the sizes of the interfering part 322b and / or the moving part 323a can also be set to be larger than the diameter of the mounting hole 316, ensuring that the interfering part 322b and the moving part 323a do not detach from the mounting hole 316.

[0050] As described above, both the handheld part 321a in the interference mechanism 300 and the operating element 220 in the winding mechanism 200 are located outside the housing. However, since the handheld part 321a protrudes axially along the winding mechanism 210 and the operating element 220 protrudes radially along the winding mechanism 210, the handheld part 321a and the operating element 220 are clearly offset in orientation, preventing operator misoperation. More specifically, the operating element 220 and the handheld part 321a can be structurally different. That is, the operating element 220 and the handheld part 321a can be differentiated in one or more aspects such as shape, operation method, size, color, and material. The interference mechanism 300 and the winding mechanism 200 are arranged adjacent to each other, allowing the handheld part 321a and the operating element 220 to be distinguished from each other, while also being as close as possible to facilitate single-handed operation of the handheld part 321a and / or the operating element 220 when holding the operating handle.

[0051] When the pressing member 320 rotates around its own axis, the concave surface 311, the first convex surface 312, and the second convex surface 313 are arranged sequentially along the same circumference of the mounting hole 316. This means that the concave surface 311, the first convex surface 312, and the second convex surface 313 are located sequentially on the rotation trajectory of the moving part 323a. When the moving part 323a is driven to rotate, it can travel sequentially on the concave surface 311, the first convex surface 312, and the second convex surface 313.

[0052] The concave surface 311, the first convex surface 312, and the second convex surface 313 each make surface contact with the moving part 323a as much as possible. That is, when the moving part 323a is specifically a plane or a curved surface, the concave surface 311, the first convex surface 312, and the second convex surface 313 provide sufficient sliding surfaces for the moving part 323a to slide. Alternatively, when the moving part 323a is specifically a ball or a rotating shaft, the concave surface 311, the first convex surface 312, and the second convex surface 313 provide sufficient rolling surfaces for the moving part 323a to roll. In order to make the transition between each pair of the concave surface 311, the first convex surface 312, and the second convex surface 313 smoother, specifically, the concave surface 311, the first convex surface 312, and the second convex surface 313 are connected to each other smoothly through inclined surfaces or arc surfaces. In this way, the moving part 323a can stop at the concave surface 311, the first convex surface 312 and the second convex surface 313 respectively under a certain external force, but it can also move from the concave surface 311 to the first convex surface 312 or from the first convex surface 312 to the second convex surface 313 under a greater external force.

[0053] As described above, due to the rotational movement of the pressing member 320 around its own axis, the concave surface 311, the first convex surface 312, and the second convex surface 313 are sequentially arranged along the same circumference of the mounting hole 316. Specifically, if the concave surface 311, the first convex surface 312, and the second convex surface 313 constitute a surface group: in one application, this surface group can be set as one, with one surface group arranged on the entire outer periphery of the mounting hole 316. Alternatively, in one application, this surface group can be set as two, with two surface groups arranged on the entire outer periphery of the mounting hole 316. Or, in one application, this surface group can be set as more than two, with each surface group sequentially arranged on the entire outer periphery of the mounting hole 316.

[0054] Taking two surface groups as an example, the two concave surfaces 311, the two first convex surfaces 312, and the two second convex surfaces 313 of the two surface groups are respectively arranged symmetrically about the mounting hole 316. Correspondingly, the moving part 323a can be set to one. After the moving part 323a moves sequentially along the concave surface 311, the first convex surface 312, and the second convex surface 313 in the previous surface group, it continues to move sequentially along the concave surface 311, the first convex surface 312, and the second convex surface 313 in the next surface group. During the single-turn rotation of the pressing member 320, the whole machine cycles through the unlocked state, the semi-locked state, and the fully locked state twice. Alternatively, the moving part 323a can be set to two. Two movable parts 323a are respectively protruding on both radial sides of the connecting part 322a, that is, the two movable parts 323a correspond one-to-one with the two surface groups, so that when the pressing member 320 rotates, the two movable parts 323a move synchronously in sequence on the concave surface 311, the first convex surface 312, and the second convex surface 313 in the two surface groups. During the half-cycle rotation of the pressing member 320, the whole machine goes through the unlocked state, the half-locked state, and the fully locked state once. The arrangement of the two movable parts 323a helps to make the movement of the pressing member 320 relative to the interference member 310 more stable and easier to transmit the force stably.

[0055] Furthermore, this application does not impose any restrictions on parameters such as the specific protrusion height difference between the first convex surface 312, the second convex surface 313, and the concave surface 311. For example... Figure 5In one specific structure shown, the circumferential arc length of each of the concave surface 311, the first convex surface 312, and the second convex surface 313 can be set to 30°, forming a sufficient area for the moving part 323a to abut. Next, inclined transition surfaces are formed between the concave surface 311 and the first convex surface 312, and between the first convex surface 312 and the second convex surface 313. The circumferential arc length of the two transition surfaces can be specifically set to 25°, which helps the moving part 323a to switch more smoothly between the two concave and convex surface regions. The height difference between the concave surface 311 and the first convex surface 312, and the height difference between the second convex surface 313 and the second convex surface 313 can be set to 0.3mm respectively, so as to achieve the purpose of being in an unlocked state when the moving part 323a moves to the concave surface 311; in a semi-locked state when the moving part 323a moves to the first convex surface 312; and in a fully locked state when the moving part 323a moves to the second convex surface 313.

[0056] The concave surface 311, the first convex surface 312, and the second convex surface 313 in one or more of the above embodiments do not constitute a specific limitation on the overall structure of the concave-convex surface. That is, the concave-convex surface can be composed only of the concave surface 311, the first convex surface 312, and the second convex surface 313; or the concave-convex surface can be provided with other structures in addition to the concave surface 311, the first convex surface 312, and the second convex surface 313, according to actual needs. For example, in a specific application, the concave-convex surface also includes a third convex surface 314, the protrusion height of the third convex surface 314 is greater than the protrusion height of the second convex surface 313, and a stop surface 315 is formed at the connection between the two, the stop surface 315 circumferentially stops the moving part 323a. That is, it can be understood that under the external force driven by a force lower than the preset threshold, the moving part 323a can move from the concave surface 311 to the first convex surface 312, and can also move from the first convex surface 312 to the second convex surface 313, but cannot move from the second convex surface 313 to the third convex surface 314, and will be stopped and limited by the stop surface 315.

[0057] It should be noted that when the third convex surface 314 is provided as described above, the concave surface 311, the first convex surface 312, the second convex surface 313, and the third convex surface 314 can constitute a surface group. Specific embodiments of the surface group can be found above.

[0058] Furthermore, the interference portion 322b abuts against the shaft end surface of the cable reel 210 to produce varying degrees of interference with the rotation of the cable reel 210. Specifically, the interference portion 322b is positioned closer to the outer periphery of the cable reel 210 relative to its axis, so that when the interference portion 322b applies force to the shaft end surface of the cable reel 210, a lever arm is formed relative to the axis of the cable reel 210, thereby generating sufficient torque.

[0059] The interference portion 322b and the shaft end surface of the winding reel 210 are made into surface contact as much as possible. That is, the interference portion 322b is designed to form a plane or arc surface with sufficient contact area, so that the pressure transmitted from the interference portion 322b to the winding reel 210 is more evenly distributed, avoiding excessive stress concentration between the interference portion 322b and the shaft end surface of the winding reel 210, which could lead to structural damage.

[0060] The specific form of the aforementioned pressure-bearing component 320 is not limited; for example... Figures 1 to 6 In the structure shown, the pressing member 320 includes a first convex shaft 322, a toggle structure 321, and a second convex shaft 323. The shaft segment of the first convex shaft 322 passing through the mounting hole 316 forms a connecting portion 322a, and at least one end of the first convex shaft 322 extending into the mounting cavity forms an interference portion 322b. A shaft hole is radially provided between the connecting portion 322a and the interference portion 322b of the first convex shaft 322. The toggle structure 321 is located outside the housing 100 and is anti-rotationally connected to the shaft segment of the first convex shaft 322 extending out of the mounting hole 316. The toggle structure 321 forms a handheld portion 321a. The second convex shaft 323 passes through the shaft hole, and its outer peripheral sidewall forms a moving portion 323a.

[0061] It should be noted that the first convex shaft 322 and the second convex shaft 323 can be integrally formed, meaning that the aforementioned shaft hole is unnecessary, allowing for the proper assembly of the first convex shaft 322 and the second convex shaft 323. Alternatively, the first convex shaft 322 and the second convex shaft 323 can be detachably or non-detachably connected after being formed separately. The aforementioned actuating structure 321 is a specific manifestation of the handheld part 321a, which drives the rotation of the pressing member 320 by the operator's actuation. In other applications, the actuating structure 321 can be replaced with, for example, a knob or a pressing member, depending on actual needs, without limitation.

[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An operating handle, characterized in that The utility model relates to an endoscope, comprising: a housing including two plate bodies connected to each other, the two plate bodies enclosing a mounting cavity; a winding mechanism including a winding device and a traction line, the winding device being rotatably mounted in the mounting cavity about an axis extending along the connecting direction of the two housing, the traction line being movably wound around the outer periphery of the winding device, and a free section of the traction line extending out of the mounting cavity and being connected to an insertion tube of an endoscope to be driven to move during rotation of the winding device so that the insertion tube can be laterally bent; and an interference mechanism including an interference member and a pressing member arranged in sequence in the axial direction of the winding device, the interference member being fixedly connected to the adjacent plate body, and an axial end surface of the interference member being a concave-convex surface, the concave-convex surface including a first outer convex surface, a second outer convex surface, and an inner concave surface, the second outer convex surface having a greater protruding height in the axial direction than the first outer convex surface, the pressing member including a moving part movably walking at the concave-convex surface, and an interference part abutting against the axial end surface of the winding device, under the driving of an external force, the moving part movably walking at the first outer convex surface, the second outer convex surface, and the inner concave surface respectively to adjust the axial pressing force of the interference part against the winding device.

2. The operating handle of claim 1, wherein The interference member is integrally formed with the plate body.

3. The operating handle of claim 1, wherein, The interference member is provided with a mounting hole extending through the interference member in the axial direction of the winding device, and the concave-convex surface extends along the outer periphery of the mounting hole; The pressing member further includes a connecting part movably passing through the mounting hole, and a hand-held part connected to the connecting part and extending out of the mounting cavity, and the hand-held part is rotated about the connecting part under the operation of an external force to drive the moving part to move and walk at the concave-convex surface.

4. The operating handle of claim 3, wherein, The connecting part of the pressing member movably passing through the mounting hole is connected to the hand-held part. The concave-convex surface further includes a third outer convex surface having a greater protruding height than the second outer convex surface, and a stop surface is formed at the connection between the second outer convex surface and the third outer convex surface, the stop surface circumferentially stopping the moving part.

5. The operating handle of claim 3, wherein, The inner concave surface, the first outer convex surface, and the second outer convex surface are respectively provided with two groups in the circumferential direction of the mounting hole, and the two inner concave surfaces, the two first outer convex surfaces, and the two second outer convex surfaces are respectively arranged in a central symmetry about the mounting hole. The hand-held part, the connecting part, and the interference part are sequentially connected in the axial direction of the winding device, and the moving part is provided with two moving parts corresponding to the connecting part and protruding on the two sides of the connecting part in the radial direction.

6. The operating handle of claim 5, wherein The pressing member includes:

7. Operating handle according to any one of claims 3 to 6, characterized in that ​ ​ 8. The operating handle of claim 7, wherein, ​ A first protruding shaft is arranged in the shaft section of the mounting hole to form the connecting part, at least the shaft end of the first protruding shaft extending into the mounting cavity forms the interference part, and a shaft hole is arranged in the first protruding shaft along the radial direction between the connecting part and the interference part; A dialing structure is arranged outside the shell and is rotationally connected with the shaft section of the first protruding shaft extending out of the mounting hole, and the dialing structure forms the handheld part; and A second protruding shaft is arranged in the shaft hole, and the outer peripheral side wall of the second protruding shaft forms the moving part.

9. The operating handle of claim 1, wherein The interference part is arranged closer to the outer periphery of the reel relative to the shaft center of the reel.

10. An endoscope characterized by comprising: Comprise: An insertion tube; And The operating handle according to any one of claims 1 to 9.

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