Traction rope driving assembly and endoscope

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a traction rope driving assembly and an endoscope. The pulling rope driving assembly comprises a mounting base, a sliding part and a rotating sleeve, the sliding part is slidably arranged on the mounting base, the sliding part and the mounting base are in limiting fit in the circumferential direction of the sliding part, the sliding part can be connected with a pulling rope of the endoscope, the rotating sleeve can rotate relative to the sliding part, one of the rotating sleeve and the sliding part is provided with a protruding part, and the other one is provided with a guide groove. At least part of the protruding part is located in the guide groove, under the condition that the rotating sleeve rotates relative to the sliding piece, the protruding part slides relative to the guide groove, and the rotating sleeve drives the sliding piece to slide so as to pull or push the pulling rope. When the pulling rope driving assembly is specifically applied, the sliding direction of the sliding part can be parallel to the axis direction of the handle shell, so that the situation that the pulling rope inclines relative to the axis of the handle shell when the sliding part drives the pulling rope can be prevented, and the problem that the pulling rope occupies too much space in the operating handle is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a traction rope drive assembly and an endoscope. Background Art

[0002] When diagnosing and treating lesions in the patient's body, an endoscope is usually required. The endoscope includes an operating handle and an insertion part. During specific operation, by controlling the operating handle, the active bending section at the distal end of the insertion part can be pulled by a traction rope to achieve bending action, thereby changing the direction of the distal end of the insertion part to facilitate the insertion part to enter the natural cavity of the human body.

[0003] Most of the current endoscopes use a traction wheel to pull the traction rope. Since the outer peripheral surface of the traction wheel has a curvature, the traction rope will be tilted relative to the axis of the operating handle during the rotation of the traction wheel, so that the traction rope will occupy too much space in the operating handle, which is not conducive to the layout of other components in the operating handle. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a traction rope drive assembly and an endoscope, which can solve the problem that the traction rope currently occupies too much space in the operating handle.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a traction rope drive assembly, which is applied to an endoscope, and includes a mounting seat, a sliding member, and a rotary sleeve. The sliding member is slidably disposed on the mounting seat, and the sliding member and the mounting seat are matched in the circumferential upper limit of the sliding member. The sliding member can be connected to the traction rope of the endoscope.

[0007] The rotary sleeve can rotate relative to the sliding member, one of the rotary sleeve and the sliding member is provided with a protrusion, and the other is provided with a guide groove, two ends of the guide groove have a first spacing in the sliding direction of the sliding member, and two ends of the guide groove have a second spacing in the rotation direction of the rotary sleeve, at least part of the protrusion is located in the guide groove, and two opposite side walls of the guide groove are in contact with the protrusion,

[0008] When the rotary sleeve rotates relative to the sliding member, the protrusion slides relative to the guide groove, and the rotary sleeve drives the sliding member to slide, so as to pull or push the traction rope.

[0009] In a second aspect, an embodiment of the present application provides an endoscope, comprising the above-mentioned traction rope drive assembly.

[0010] In the embodiment of the present application, the rotary sleeve can rotate relative to the sliding member, and one of the sliding member and the rotary sleeve is provided with a protrusion, and the other is provided with a guide groove, at least part of the protrusion is located in the guide groove, and when the rotary sleeve rotates relative to the sliding member, the protrusion will slide relative to the guide groove to push the sliding member to slide, thereby achieving traction or pushing the traction rope, so that the active bending section of the endoscope is bent and deformed, or restored to deformation. It can be seen that the embodiment of the present application pulls or pushes the traction rope by driving the sliding member to slide through the rotary sleeve, and when the traction rope driving assembly of the present application is specifically used, the sliding direction of the sliding member can be parallel to the axial direction of the operating handle, so that the sliding member can prevent the traction rope from tilting relative to the axis of the operating handle when driving the traction rope, thereby solving the problem of the traction rope occupying too much space in the operating handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the endoscope disclosed in the embodiment of the present application;

[0012] Figure 2 This is an exploded schematic diagram of the endoscope disclosed in the embodiment of the present application;

[0013] Figure 3 A cross-sectional view of an endoscope disclosed in an embodiment of the present application;

[0014] Figure 4 For this application Figure 3 The enlarged schematic diagram of point A in the middle;

[0015] Figure 5 For this application Figure 4 The enlarged schematic diagram of point B in the middle;

[0016] Figure 6 It is a schematic diagram of the assembly between the mounting seat and the rotary sleeve disclosed in the embodiment of the present application;

[0017] Figure 7 It is a schematic diagram of the assembly between the inner shell and the rotary sleeve of the mounting seat disclosed in the embodiment of the present application;

[0018] Figure 8 It is a schematic diagram of the assembly between the mounting seat and the sliding member disclosed in the embodiment of the present application.

[0019] Description of reference numerals:

[0020] 100, mounting seat; 110, avoidance groove; 120, clamping groove; 130, limiting part; 200, sliding member; 210, protruding part; 220, first mounting hole; 230, second mounting hole; 300, rotating sleeve; 310, outer shell; 320, inner shell; 321, guide groove; 330, clamping member; 340, sealing flange; 400, pressing member; 500, first limiting sleeve; 510, first annular flange; 520, connecting structure; 600, second limiting sleeve; 610, second annular flange; 700, operating handle; 710, limiting matching part; 800, traction rope; 900, insertion part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0023] The traction rope drive assembly and the endoscope provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.

[0024] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of the endoscope and its components relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0025] like Figures 1 to 8As shown, the embodiment of the present application discloses a traction rope driving assembly, which is applied to an endoscope, and includes a mounting seat 100, a sliding member 200 and a rotary sleeve 300. The sliding member 200 is slidably arranged on the mounting seat 100, and the sliding member 200 cooperates with the mounting seat 100 in the circumferential upper limit of the sliding member 200, and the sliding member 200 can be connected to the traction rope 800 of the endoscope. Specifically, the sliding member 200 cooperates with the mounting seat 100 in the circumferential upper limit of the sliding member 200, that is, the mounting seat 100 can limit the sliding member 200 from rotating along its own circumference, so that the rotary sleeve 300 described below can be prevented from driving the sliding member 200 to rotate during the rotation process, and then the rotary sleeve 300 can stably drive the sliding member 200 to move.

[0026] The rotary sleeve 300 can rotate relative to the sliding member 200, one of the rotary sleeve 300 and the sliding member 200 is provided with a protrusion 210, and the other is provided with a guide groove 321, both ends of the guide groove 321 have a first spacing in the sliding direction of the sliding member 200, and both ends of the guide groove 321 have a second spacing in the rotation direction of the rotary sleeve 300, at least part of the protrusion 210 is located in the guide groove 321, and the two opposite side walls of the guide groove 321 are in contact with the protrusion 210. Optionally, the guide groove 321 here can be a spiral groove extending in a spiral direction or an arc groove extending in an arc direction.

[0027] When the rotary sleeve 300 rotates relative to the sliding member 200 , the protrusion 210 slides relative to the guide groove 321 , and the rotary sleeve 300 drives the sliding member 200 to slide, so as to pull or push the traction rope 800 .

[0028] In the embodiment of the present application, the rotary sleeve 300 can rotate relative to the sliding member 200, and one of the sliding member 200 and the rotary sleeve 300 is provided with a protrusion 210, and the other is provided with a guide groove 321, at least a portion of the protrusion 210 is located in the guide groove 321, and when the rotary sleeve 300 rotates relative to the sliding member 200, the protrusion 210 will slide relative to the guide groove 321. Since the two opposite side walls of the guide groove 321 are in contact with the protrusion 210, the side wall of the guide groove 321 can push the protrusion 210 to slide, or the protrusion 210 can push the side wall provided with the guide groove 321 to slide, so as to push the sliding member 200 to slide, thereby achieving traction or pushing the traction rope 800, so that the active bending section of the endoscope is bent and deformed, or restored to deformation. It can be seen that the embodiment of the present application drives the sliding member 200 to slide by the rotary sleeve 300 to pull or push the traction rope 800. When the traction rope driving assembly of the present application is specifically used, the sliding direction of the sliding member 200 can be made parallel to the axial direction of the operating handle 700. In this way, the sliding member 200 can be prevented from causing the traction rope 800 to tilt relative to the axis of the operating handle 700 when driving the traction rope 800, thereby solving the problem of the traction rope 800 occupying too much space in the operating handle 700.

[0029] In an optional embodiment, a portion of the sliding member 200 can be slidably sleeved in the mounting seat 100, and the rotary sleeve 300 can be rotatably sleeved outside the mounting seat 100. In this embodiment, a portion of the sliding member 200 is sleeved in the mounting seat 100, which can make the sliding member 200 and the mounting seat 100 have a larger contact area, thereby improving the sliding stability between the sliding member 200 and the mounting seat 100; in addition, the rotary sleeve 300 is sleeved outside the mounting seat 100, that is, the rotary sleeve 300 is exposed to the outside of the mounting seat 100, so that the operator can easily touch the rotary sleeve 300 for easy operation. Of course, the sliding member 200 may not be sleeved with the mounting seat 100, in which case a slide groove may be provided on the mounting seat 100, and a portion of the sliding member 200 is located in the slide groove; in addition, the rotary sleeve 300 may also be sleeved inside the mounting seat 100, rather than being sleeved outside the mounting seat 100, in which case an additional drive member such as a motor may be provided to drive the rotary sleeve 300 to rotate.

[0030] For further examples, see Figure 8, the sliding member 200 is provided with a protrusion 210, and the mounting seat 100 is provided with an escape groove 110 that penetrates the sliding member 200, the escape groove 110 extends along the sliding direction, and a part of the sliding member 200 is slidably arranged in the escape groove 110, so that the sliding member 200 and the mounting seat 100 cooperate at the circumferential upper limit of the sliding member 200. In this embodiment, the mounting seat 100 is provided with an escape groove 110 extending along the sliding direction, and a part of the sliding member 200 slidably cooperates with the escape groove 110, so that the guiding stability between the sliding member 200 and the mounting seat 100 can be further improved; and the sliding member 200 can cooperate with the inner wall of the escape groove 110 at the circumferential upper limit of the sliding member 200, so that the part of the sliding member 200 itself extending into the escape groove 110 can cooperate with the mounting seat 100 at the circumferential upper limit, thereby achieving the purpose of one object for multiple uses. Of course, in addition to this embodiment, the shape of the sliding member 200 can also be set to be square, so as to achieve the purpose of limiting the circumferential position of the sliding member 200 and the mounting seat 100.

[0031] Optionally, the rotary sleeve 300 may include an inner shell 320 and an outer shell 310, the outer shell 310 is sleeved on the outside of the inner shell 320, and the inner shell 320 and the outer shell 310 are matched in the circumferential upper limit position, so that the inner shell 320 will rotate with the outer shell 310, and the guide groove 321 is provided in the inner shell 320, so that the outer shell 310 can be used to cover the guide groove 321, which can not only prevent foreign matter from getting stuck in the guide groove 321, but also improve the appearance texture of the rotary sleeve 300.

[0032] Alternatively, if Figure 6 As shown, the distal end of the mounting seat 100 may be connected to the insertion portion 900 of the endoscope, in which case the mounting seat 100 may be a part of the insertion portion 900, and the space in the mounting seat 100 is connected to the space in the rest of the insertion portion 900. Of course, the mounting seat 100 may not be a part of the insertion portion 900, in which case the mounting seat 100 and the insertion portion 900 are two independent components, and the mounting seat 100 may be a part of the handle housing of the operating handle 700, or the mounting seat 100 and the handle housing may also be two independent components.

[0033] In an optional embodiment, please continue to refer to Figure 8The proximal end of the mounting seat 100 is used to be connected to the distal end of the operating handle 700 of the endoscope, and the avoidance groove 110 extends to the proximal end of the mounting seat 100. The avoidance groove 110 can be positioned and matched with the anti-rotation protrusion at the distal end of the operating handle 700, so that the mounting seat 100 and the operating handle 700 are matched at the circumferential upper limit of the mounting seat 100. In this embodiment, the avoidance groove 110 extends to the proximal end of the mounting seat 100, and the anti-rotation protrusion at the distal end of the operating handle 700 can be positioned and inserted into the proximal end of the avoidance groove 110, which can make the mounting seat 100 and the operating handle 700 match at the circumferential upper limit of the mounting seat 100. In this way, after the mounting seat 100 is connected to the operating handle 700, the mounting seat 100 can be prevented from rotating relative to the operating handle 700, thereby preventing it from driving the sliding member 200 to rotate relative to the rotary sleeve 300, thereby forcing the rotary sleeve 300 to drive the sliding member 200 to move.

[0034] In an alternative embodiment, see Figure 5 A first mounting hole 220 is provided on the sliding member 200, and the first mounting hole 220 extends along the axial direction of the sliding member 200. The first mounting hole 220 is used to install the traction rope 800. A second mounting hole 230 is provided on the outer surface of the sliding member 200, and the second mounting hole 230 is communicated with the first mounting hole 220. The traction rope driving assembly also includes a pressing member 400, and the pressing member 400 can move relative to the second mounting hole 230 so that the pressing member 400 can press and fix the traction rope 800. In this embodiment, the traction rope 800 can be inserted into the first mounting hole 220. After the traction rope 800 is inserted into the first mounting hole 220, since the first mounting hole 220 is connected to the second mounting hole 230, a part of the traction rope 800 will be exposed to the second mounting hole 230. When the pressing member 400 in the second mounting hole 230 moves into the first mounting hole 220, it can press the part of the traction rope 800, thereby fixing the traction rope 800 to the sliding member 200; and when the pressing member 400 exits the first mounting hole 220, the pressing member 400 releases the part of the traction rope 800, thereby separating the traction rope 800 from the sliding member 200. It can be seen that in this embodiment, the traction rope 800 can be fixed or released by moving the sliding member 200, which is not only easy to operate, but also convenient to replace the traction rope 800. Of course, the traction rope 800 can also be connected to the sliding member 200 by other methods such as welding and riveting.

[0035] Optionally, the pressing member 400 may be threadedly connected to the second mounting hole 230, and when the pressing member 400 rotates relative to the second mounting hole 230, the pressing member 400 may move in a direction close to or away from the first mounting hole 220. Alternatively, the pressing member 400 may also be slidably matched with the second mounting hole 230, and the pressing member 400 may move between a pressing position and a releasing position. When the pressing member 400 is at the pressing position, the pressing member 400 is engaged with the second mounting hole 230, and the pressing member 400 presses and fixes the traction rope 800.

[0036] And / or, the traction rope 800 includes a rigid section and a flexible section, the distal end of the rigid section is connected to the active bending section of the endoscope through the flexible section, and the sliding member 200 can be connected to the rigid section. In this embodiment, the rigidity of the rigid section is greater than the rigidity of the flexible section, and it can transmit the pulling force or thrust of the sliding member 200. In this way, when the traction rope 800 of the embodiment of the present application is specifically used, if the active bending section is to be restored to a straight state from a bent state, the rigid section of the traction rope 800 can no longer be pulled, but the rigid section can be pushed. Since the rigid section has a large rigidity and can transmit thrust, the rigid section will not bend under the action of the thrust. In this way, the rigid section will move toward the distal end of the insertion part 900 of the endoscope under the action of the thrust. At this time, the friction generated by the rigid section during movement is overcome by the thrust, rather than by the active bending section relying on its own elasticity. The elasticity of the active bending section itself only needs to overcome the friction generated by the part of the traction rope 800 located on the far side of the rigid section during movement. It can be seen that after adopting the structure of this embodiment, the friction that the active bending section needs to overcome in the process of recovering from a bent state to a straight state can be reduced, thereby reducing the risk that the active bending section cannot be completely restored to a straight state.

[0037] In an optional embodiment, please continue to refer to Figure 5 , the rotary sleeve 300 is rotatably connected to the mounting seat 100, one of the rotary sleeve 300 and the mounting seat 100 is provided with a clamping piece 330, and the other is provided with a slot 120. When the rotary sleeve 300 drives the sliding member 200 to slide to the extreme position, the clamping piece 330 is engaged with the slot 120. In this embodiment, when the rotary sleeve 300 drives the sliding member 200 to slide to the extreme position, the clamping piece 330 is engaged with the slot 120, and the operator will have an obvious tactile feeling at this time, which can remind the operator that the sliding member 200 has slid to the extreme position, so as to facilitate the operator to judge whether the active bending section is in the extreme bending state or whether it has completely recovered to the straight state; in addition, the clamping piece 330 and the slot 120 can also prevent the rotary sleeve 300 from rotating, so as to facilitate the sliding member 200 to remain in the extreme position, so that the active bending section remains in the extreme bending state or the straight state.

[0038] Optionally, the number of the clamping piece 330 and the slot 120 provided on the mounting base 100 may be one. In this case, when the rotary sleeve 300 rotates clockwise / counterclockwise to the extreme position, thereby driving the sliding member 200 to slide to the first extreme position, the clamping piece 330 is clamped with the slot 120; when the rotary sleeve 300 rotates counterclockwise / clockwise to the extreme position, thereby driving the sliding member 200 to slide to the second extreme position, the clamping piece 330 is not clamped with the slot 120; or, the number of the clamping piece 330 and the slot 120 provided on the mounting base 100 may also be two. When the rotary sleeve 300 drives the sliding member 200 to slide to the first extreme position and the second extreme position, the clamping piece 330 is clamped with the slot 120.

[0039] In an optional embodiment, one of the rotary sleeve 300 and the mounting seat 100 is threadedly connected with the clamping member 330, and when the clamping member 330 rotates, the clamping member 330 approaches or moves away from the other of the rotary sleeve 300 and the mounting seat 100. In this embodiment, one of the rotary sleeve 300 and the mounting seat 100 is threadedly connected with the clamping member 330, and when the clamping member 330 rotates, the clamping member 330 can approach or move away from the rotary sleeve 300 and the mounting seat 100 in which the slot 120 is provided, which can adjust the length of the portion of the clamping member 330 extending into the slot 120 when the clamping member 330 is engaged with the slot 120, so as to adjust the strength of the touch felt by the operator and the matching strength between the clamping member 330 and the slot 120.

[0040] And / or, the portion of the clamping member 330 that cooperates with the clamping slot 120 is a spherical portion, which can reduce the friction resistance generated when the rotary sleeve 300 rotates.

[0041] For an endoscope that can only achieve unilateral bending, it only has one traction rope 800. If a traction wheel is used to pull the traction rope 800, after the traction wheel rotates to pull the traction rope 800 to move the active bending section to bend and deform, the active bending section will apply a forward pulling force to the traction rope 800 under the action of its own elasticity, which will cause the traction wheel to rotate, which is not conducive to the active bending section maintaining a bent state.

[0042] In an alternative embodiment, see Figure 4, at least part of the sliding member 200 is slidably sleeved in the mounting seat 100, the rotary sleeve 300 is rotatably sleeved outside the mounting seat 100, and the traction rope driving assembly also includes a first limiting sleeve 500 and a second limiting sleeve 600, both of which are sleeved outside the mounting seat 100, the rotary sleeve 300 is located between the first limiting sleeve 500 and the second limiting sleeve 600, and both ends of the rotary sleeve 300 are respectively in contact with the first limiting sleeve 500 and the second limiting sleeve 600. Specifically, after the first limiting sleeve 500 and the second limiting sleeve 600 are sleeved outside the mounting seat 100, the relative positions between the first limiting sleeve 500 and the second limiting sleeve 600 and the mounting seat 100 are relatively fixed, that is, the first limiting sleeve 500 and the second limiting sleeve 600 will not move relative to the mounting seat 100.

[0043] In this embodiment, the rotary sleeve 300 is located between the first limiting sleeve 500 and the second limiting sleeve 600, and the two ends of the rotary sleeve 300 are respectively in contact with the first limiting sleeve 500 and the second limiting sleeve 600. Therefore, under the joint action of the first limiting sleeve 500 and the second limiting sleeve 600, the rotary sleeve 300 cannot move axially relative to the mounting seat 100; and because the two opposite side walls of the guide groove 321 are in contact with the protrusion 210, the two ends of the guide groove 321 have a second spacing in the rotation direction of the rotary sleeve 300, that is, Specifically, the extension direction of the guide groove 321 intersects with the sliding direction of the sliding member 200, so the inner wall of the guide groove 321 will cooperate with the upper limit position of the protrusion 210 in the sliding direction of the sliding member 200, that is, the sliding member 200 and the rotary sleeve 300 cooperate in the upper limit position in the sliding direction. In this way, when the active bending section applies a forward pulling force to the traction rope 800 and the sliding member 200 under the action of its own elasticity, the rotary sleeve 300 can stop and limit the sliding member 200, so that the sliding member 200 remains stationary, so that the active bending section maintains a bending state.

[0044] To prevent dust in the external environment from entering the operating handle 700 through the gap between the first limiting sleeve 500 and the rotary sleeve 300 and the gap between the second limiting sleeve 600 and the rotary sleeve 300, in an optional embodiment, please continue to refer to Figure 4The first limiting sleeve 500 extends a first annular flange 510 toward the end surface of the rotary sleeve 300, and the second limiting sleeve 600 extends a second annular flange 610 toward the end surface of the rotary sleeve 300. Annular sealing flanges 340 are extended from both end surfaces of the rotary sleeve 300, and the first annular flange 510 and the second annular flange 610 are respectively connected to the corresponding sealing flanges 340. In this embodiment, the first limiting sleeve 500 is provided with a first annular flange 510, and the second limiting sleeve 600 is provided with a second annular flange 610. Sealing flanges 340 are extended from both end faces of the rotary sleeve 300. The first annular flange 510 and the second annular flange 610 are respectively sleeved with the corresponding sealing flanges 340. That is to say, there are overlapping parts between the first annular flange 510 and the sealing flange 340, and between the second annular flange 610 and the sealing flange 340. In this way, the gap between the first limiting sleeve 500 and the rotary sleeve 300 and the gap between the second limiting sleeve 600 and the rotary sleeve 300 can be extended, thereby preventing dust from entering the operating handle 700.

[0045] In an optional embodiment, please continue to refer to Figure 4 , the first limiting sleeve 500 is located at the proximal side of the rotary sleeve 300, and the first limiting sleeve 500 can be sleeved outside the distal end of the operating handle 700 of the endoscope. The proximal end of the first limiting sleeve 500 is provided with a connecting structure 520, and the connecting structure 520 can be connected to the first shell and the second shell of the operating handle 700, so that the first shell and the second shell are connected. Specifically, the operating handle 700 includes a detachable first shell and a second shell, and the first shell and the second shell cooperate to form an installation space for installing parts, and the first shell and the second shell are both provided with a matching structure adapted to the connecting structure 520. The first limiting sleeve 500 of this embodiment can be sleeved outside the distal end of the operating handle 700, that is, the first limiting sleeve 500 can be sleeved outside the distal ends of the first shell and the second shell, and the connecting structure 520 can be connected to the first shell and the second shell, so as to connect the first shell and the second shell. It can be seen that the first limiting sleeve 500 of the present embodiment can not only limit the position of the rotary sleeve 300, but also connect the first shell and the second shell of the operating handle 700 to achieve the purpose of one object with multiple uses.

[0046] Optionally, the connection structure 520 may be a threaded structure or a clamping structure extending in an annular direction, such as an annular clamping groove or an annular clamping protrusion.

[0047] And / or, in an optional embodiment, please continue to refer to Figure 4The outer circumferential surface of the proximal end of the mounting seat 100 is provided with a limiting portion 130, which can cooperate with the limiting matching portion 710 at the distal end of the operating handle 700 of the endoscope, and the limiting portion 130 can cooperate with the limiting matching portion 710 at the axial upper limit of the mounting seat 100, and the distal end of the mounting seat 100 is used to fix the insertion portion 900 of the endoscope. In this embodiment, the outer circumferential surface of the proximal end of the mounting seat 100 is provided with a limiting portion 130, which can cooperate with the limiting matching portion 710 at the distal end of the operating handle 700 at the axial upper limit of the mounting seat 100, so as to prevent the mounting seat 100 from being separated from the operating handle 700 when subjected to an axial force. Optionally, the limiting portion 130 can be a limiting convex portion or a limiting groove.

[0048] The embodiment of the present application also discloses an endoscope, including the traction rope drive assembly described in any of the above embodiments, so that the endoscope has the beneficial effects of the above traction rope drive assembly, which will not be repeated here.

[0049] The endoscope referred to in the embodiments of the present application may be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc. The embodiments of the present application do not impose any specific restrictions on the type of endoscope.

[0050] The above embodiments of the present application focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here. The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present application, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present application and the claims, all of which are within the protection of the present application.

Claims

1. A traction rope drive assembly, applied to an endoscope, characterized in that: The invention comprises a mounting seat (100), a sliding member (200) and a rotating sleeve (300), wherein the sliding member (200) is slidably arranged on the mounting seat (100), the sliding member (200) cooperates with the mounting seat (100) in the circumferential upper limit position of the sliding member (200), and the sliding member (200) can be connected to a traction rope (800) of an endoscope. The rotary sleeve (300) can rotate relative to the sliding member (200); one of the rotary sleeve (300) and the sliding member (200) is provided with a protrusion (210); the other is provided with a guide groove (321); two ends of the guide groove (321) have a first spacing in the sliding direction of the sliding member (200); and two ends of the guide groove (321) have a second spacing in the rotating direction of the rotary sleeve (300); at least a portion of the protrusion (210) is located in the guide groove (321); two opposite side walls of the guide groove (321) are in contact with the protrusion (210); When the rotary sleeve (300) rotates relative to the sliding member (200), the protrusion (210) slides relative to the guide groove (321), and the rotary sleeve (300) drives the sliding member (200) to slide, so as to pull or push the traction rope (800).

2. The traction rope drive assembly according to claim 1, characterized in that: A portion of the sliding member (200) is slidably mounted inside the mounting seat (100), and the rotating sleeve (300) is rotatably mounted outside the mounting seat (100). The sliding member (200) is provided with the protruding portion (210), and the mounting seat (100) is provided with an avoidance groove (110) which penetrates the sliding member, and the avoidance groove (110) extends along the sliding direction. A part of the sliding member (200) is slidably arranged in the avoidance groove (110) so that the sliding member (200) and the mounting seat (100) cooperate at the circumferential upper limit position of the sliding member (200).

3. The traction rope drive assembly according to claim 2, characterized in that: The proximal end of the mounting seat (100) is used to be connected to the distal end of the operating handle (700) of the endoscope, and the avoidance groove (110) extends to the proximal end of the mounting seat (100). The avoidance groove (110) can be positioned and matched with the anti-rotation protrusion at the distal end of the operating handle (700) so that the mounting seat (100) and the operating handle (700) can be matched at the circumferential upper limit of the mounting seat (100).

4. The traction rope drive assembly according to claim 1, characterized in that: The sliding member (200) is provided with a first mounting hole (220), the first mounting hole 2 (20) extending along the axial direction of the sliding member (200), the first mounting hole (220) being used to mount the traction rope (800), the outer surface of the sliding member (200) is provided with a second mounting hole (230), the second mounting hole (230) being communicated with the first mounting hole (220), the traction rope driving assembly further comprising a pressing member (400), the pressing member (400) being movable relative to the second mounting hole (230) so that the pressing member (400) can press and fix the traction rope (800); and / or, The traction rope (800) comprises a rigid section and a flexible section, the distal end of the rigid section is connected to the active bending section of the endoscope via the flexible section, and the sliding member (200) can be connected to the rigid section.

5. The traction rope drive assembly according to claim 1, characterized in that: The rotary sleeve (300) is rotatably sleeved with the mounting seat (100); one of the rotary sleeve (300) and the mounting seat (100) is provided with a clamping member (330), and the other is provided with a clamping groove (120). When the rotary sleeve (300) drives the sliding member (200) to slide to the extreme position, the clamping member (330) is clamped and matched with the clamping groove (120).

6. The traction rope drive assembly according to claim 5, characterized in that: One of the rotary sleeve (300) and the mounting seat (100) is threadedly connected to the clamping piece (330), and when the clamping piece (330) rotates, the clamping piece (330) approaches or moves away from the other of the rotary sleeve (300) and the mounting seat (100); and / or the portion of the clamping piece (330) that cooperates with the slot (120) is a spherical portion.

7. The traction rope drive assembly according to claim 1, characterized in that: At least a portion of the sliding member (200) is slidably mounted in the mounting seat (100), and the rotating sleeve (300) is rotatably mounted outside the mounting seat (100). The traction rope driving assembly also includes a first limiting sleeve (500) and a second limiting sleeve (600), wherein the first limiting sleeve (500) and the second limiting sleeve (600) are both sleeved outside the mounting seat (100), and the rotating sleeve (300) is located between the first limiting sleeve (500) and the second limiting sleeve (600), and the two ends of the rotating sleeve (300) are respectively in limiting contact with the first limiting sleeve (500) and the second limiting sleeve (600).

8. The traction rope drive assembly according to claim 7, characterized in that: The first limiting sleeve (500) extends a first annular flange (510) toward the end surface of the rotary sleeve (300), and the second limiting sleeve (600) extends a second annular flange (610) toward the end surface of the rotary sleeve (300). Annular sealing flanges (340) are extended from both end surfaces of the rotary sleeve (300), and the first annular flange (510) and the second annular flange (610) are respectively sleeved with the corresponding sealing flanges (340).

9. The traction rope drive assembly according to claim 8, characterized in that: The first limiting sleeve (500) is located at the proximal side of the rotating sleeve (300), the first limiting sleeve (500) can be sleeved outside the distal end of the operating handle (700) of the endoscope, the proximal end of the first limiting sleeve (500) is provided with a connecting structure (520), and the connecting structure (520) can be connected to the first shell and the second shell of the operating handle (700) so that the first shell and the second shell are connected; and / or, A limiting portion (130) is provided on the outer peripheral surface of the proximal end of the mounting seat (100), and the limiting portion (130) can cooperate with the limiting matching portion (710) at the distal end of the operating handle (700) of the endoscope, and the limiting portion (130) can cooperate with the limiting matching portion (710) at the axial upper limit of the mounting seat (100), and the distal end of the mounting seat (100) is used for fixedly connecting the insertion portion (900) of the endoscope.

10. An endoscope, characterized in that: Comprising a traction rope drive assembly as claimed in any one of claims 1 to 9.

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