Adjustment mechanism and endoscope

Abstract

The present invention discloses an adjustment mechanism and an endoscope, which relate to the field of endoscopic instruments. The adjustment mechanism includes a mounting member, an adjustment member, a locking member, a rotating assembly, and an elastic element; the rotating assembly is suitable for assembling an operating line, the rotating assembly and the mounting member are configured to rotate, and the adjustment member and the rotating assembly are configured to slide. The adjustment mechanism provided by the present invention can be switched between a self-locking state and an unlocked state; it integrates self-locking and unlocking bending adjustment functions, and its operation process is simple and consistent, without the need to perform additional locking or unlocking steps, thereby reducing the user's labor intensity and operating difficulty, which is conducive to improving surgical efficiency and safety and reducing patient discomfort.

Description

Technical Field

[0001] The present invention relates to the field of endoscope instruments, and in particular to an adjustment mechanism and an endoscope. Background Art

[0002] Endoscopes, as medical imaging instruments, are widely used in the diagnosis and treatment of internal body features. Their high-definition camera systems allow for deep penetration into the human body, providing intuitive and accurate observation of lesions. In practice, the curved portion of the endoscope, which enters the body, must be both flexible and stable for precise operation. An operating cable connects the winding wheel of the operating portion to the curved portion. The user rotates the bending knob, which in turn drives the winding wheel to control the curvature of the curved portion.

[0003] Currently, locking the winding wheel and the bending portion to maintain the desired bending position is typically accomplished using a locking mechanism. The user locks or unlocks the winding wheel by controlling a button or knob on the locking mechanism. However, because the locking mechanism's control mechanism and the bending adjustment knob are independent, the user must frequently switch between these two control mechanisms to achieve the desired bending position during adjustment. This increases the user's workload and operational difficulty, reducing surgical efficiency and safety, and increasing patient discomfort. Summary of the Invention

[0004] In order to solve the technical problems raised by the above background technology, the present invention provides an adjustment mechanism, comprising:

[0005] A mounting member adapted to be fixed to the housing of the endoscope;

[0006] Adjustment parts;

[0007] a locking member, disposed on the adjusting member;

[0008] A rotating assembly, adapted for assembling the operating line, wherein the rotating assembly and the mounting member are rotatably arranged, and the adjusting member and the rotating assembly are slidably arranged;

[0009] and an elastic element, wherein a first connecting end of the elastic element is connected to the adjusting member, and a second connecting end of the elastic element is connected to the rotating assembly;

[0010] Wherein, under the elastic force of the elastic element, the adjusting member can drive the locking member and the mounting member to approach a limit position, so that the adjusting mechanism is in a self-locking state;

[0011] Under the action of external force, the adjusting member can slide relative to the rotating assembly to overcome the elastic force of the elastic element, drive the locking member and the mounting component to move away and release, and put the adjusting mechanism into an unlocked state to allow the adjusting member to drive the rotating assembly and the operating wire to rotate together.

[0012] Optionally, the adjusting member is provided with an operating portion and an inserting portion that are engaged with each other, the operating portion being suitable for a user to apply force to operate; the rotating assembly includes a knob, a guide cavity is provided in the knob, the inserting portion extends into the guide cavity, and the inserting portion and the guide cavity are slidingly arranged.

[0013] Optionally, the rotating assembly further includes a winding wheel, the winding wheel and the knob are fixedly arranged, the winding wheel is provided with a wheel groove, and the wheel groove is suitable for installing the operating wire.

[0014] Optionally, the mounting component includes a support member and a mounting seat; one end of the support member is connected to the mounting seat, and the other end of the support member passes through the winding wheel and extends into the knob to cooperate with the locking member in a limited position, and the support member and the knob are rotatably arranged.

[0015] Optionally, the support member is provided on a side of the locking member close to the elastic element; or

[0016] The supporting member is arranged on a side of the locking member away from the elastic element.

[0017] Optionally, a friction contour surface is provided on a side of the locking member facing the support member, and the friction contour surface is conformally arranged to correspond to an outer wall surface of the support member that is in positional engagement; and / or

[0018] The rotating assembly further includes a sleeve structure, which is fixedly arranged between the knob and the winding wheel, and the sleeve structure is rotatably sleeved on the outer periphery of the support member.

[0019] Optionally, a fixing portion is provided on the winding wheel, and the fixing portion is used to fix the operating wire.

[0020] Optionally, a positioning portion is configured on the knob, the first connecting end of the elastic element is connected to a portion of the adjusting member facing the positioning portion, and the second connecting end of the elastic element is connected to the positioning portion; and / or

[0021] The inserting portion is slidably arranged along the radial direction of the rotating circumferential surface of the rotating assembly, and the junction between the operating portion and the inserting portion is constructed as a bending structure.

[0022] Optionally, the adjusting member is provided with an extended connecting portion on a side facing the elastic element, the first connecting end of the elastic element is sleeved and mounted on the connecting portion, and the connecting portion and the positioning portion are capable of sliding relative to each other.

[0023] Optionally, the adjustment mechanism further includes a first sleeve and a second sleeve, either sleeve being fixedly arranged on the mounting component, the first sleeve and the second sleeve being respectively arranged in the entry and exit directions of the operating wire adjusted by the adjustment mechanism, and the operating wire being suitable for being slidably arranged in either sleeve.

[0024] An endoscope comprises the above-mentioned adjustment mechanism, and the endoscope is one of an electronic endoscope, an ultrasonic endoscope, and an ultrasonic bronchoscope.

[0025] The technical solution provided by the present invention has the following advantages:

[0026] The adjustment mechanism provided by the present invention includes a mounting component, an adjusting component, a locking component, a rotating assembly and an elastic element; the mounting component is suitable for being fixed to the endoscope housing, the locking component is arranged on the adjusting component, the rotating assembly is suitable for assembling an operating line, the rotating assembly and the mounting component are rotatably configured, the adjusting component and the rotating assembly are slidably configured, the first connecting end of the elastic element is connected to the adjusting component, and the second connecting end of the elastic element is connected to the rotating assembly.

[0027] With this structure of the adjustment mechanism, the user applies force to the adjusting member, and the adjusting member and the rotating assembly slide relative to each other to overcome the elastic force of the elastic element, thereby causing the locking member and the mounting component to move away from each other and be released. At this time, the adjusting mechanism can be in an unlocked state, and then the adjusting member drives the rotating assembly and the operating wire to rotate together, so that the operating wire is bent; when the user does not apply force, the adjusting member drives the locking member and the mounting component close to the limit position under the elastic force of the elastic element, so that the adjusting mechanism is in a self-locking state; the present invention integrates self-locking and unlocking bending adjustment functions, and its operation process is simple and coherent, without the need to perform additional locking or unlocking steps, thereby reducing the user's labor intensity and operation difficulty, which is conducive to improving surgical efficiency and safety and reducing patient discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0029] Figure 1 A three-dimensional schematic diagram of the adjustment mechanism provided by the present invention;

[0030] Figure 2 A schematic structural diagram of the adjustment mechanism provided by the present invention in a self-locking state;

[0031] Figure 3 A schematic structural diagram of the adjustment mechanism provided by the present invention in an unlocked state;

[0032] Figure 4 A schematic structural diagram of the regulating mechanism provided by the present invention;

[0033] Figure 5 A partial schematic diagram of the adjustment mechanism provided by the present invention;

[0034] Description of reference numerals:

[0035] 11-support member; 12-mounting seat; 13-first sleeve; 14-second sleeve;

[0036] 2-adjusting part; 21-operating part; 22-inserting part; 23-connecting part;

[0037] 3-locking piece;

[0038] 4-knob; 41-positioning portion; 42-guide cavity;

[0039] 5-winding wheel; 51-fixing portion; 6-sleeve structure;

[0040] 7-Elastic element; 8-Operating wire. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Example 1

[0046] With the continuous development of modern medical equipment, the requirements for equipment safety, reliability, and convenience are becoming increasingly stringent. The current locking mechanism solution increases the workload and difficulty of medical staff, resulting in reduced surgical efficiency and safety, and easily increases patient discomfort. It is clearly unable to meet the use requirements. Therefore, the development of a new technology that integrates bending adjustment and locking functions has become an urgent need in the industry.

[0047] To this end, this embodiment provides an adjustment mechanism, see Figures 1 to 5 The adjustment mechanism includes a mounting member, an adjusting member 2, a locking member 3, a rotating assembly, an elastic element 7, and an operating wire 8. The mounting member serves as the base for installation. The adjusting member 2 adjusts the operating wire 8 under user operation. The rotating assembly is suitable for assembling the operating wire 8. The rotating assembly and the mounting member are rotatably arranged. The operating wire 8 is used to adjust the bending portion at the distal end of the endoscope. The locking member 3 is disposed on the adjusting member 2. The first connecting end of the elastic element 7 is connected to the adjusting member 2, and the second connecting end of the elastic element 7 is connected to the rotating assembly.

[0048] In this embodiment, under the elastic force of the elastic element 7, the adjusting member 2 can drive the locking member 3 and the mounting member to approach the limit position, so that the adjusting mechanism is in a self-locking state; under the action of external force, the adjusting member 2 can slide relative to the rotating component to overcome the elastic force of the elastic element 7, drive the locking member 3 and the mounting member to move away and release, so that the adjusting mechanism can be in an unlocked state, allowing the adjusting member 2 to drive the rotating component and the operating wire 8 to rotate together; the adjusting mechanism can be switched between a self-locking state and an unlocked state. In the unlocked state, the adjusting mechanism performs a bending adjustment operation.

[0049] In this embodiment, the mounting member is adapted to be fixed to the housing of the endoscope; see Figure 1 and Figure 5The mounting member includes a support member 11 and a mounting seat 12; the support member 11 and the mounting seat 12 are fixedly connected, and the mounting seat 12 is fixedly arranged in the inner cavity of the endoscope housing.

[0050] See also Figure 3 and Figure 4 The adjusting member 2 is provided with an operating portion 21 and an inserting portion 22 that are engaged with each other; the operating portion 21 provides the position and area for the user to apply force; the inserting portion 22 and the rotating assembly are configured to slide. The locking member 3 is fixedly provided on the inserting portion 22 in a limited position.

[0051] In some embodiments, see Figures 2 to 5 The rotating assembly includes a fixed knob 4, a guide cavity 42 is provided in the knob 4, the inserting portion 22 extends into the guide cavity 42, and the inserting portion 22 and the guide cavity 42 are slidably arranged.

[0052] Further, see Figures 1 to 3 A positioning portion 41 is constructed on the knob 4 , a first connection end of the elastic element 7 is connected to a portion of the adjusting member 2 facing the positioning portion 41 , and a second connection end of the elastic element 7 is connected to the positioning portion 41 .

[0053] In one embodiment, see Figure 2 and Figure 3 There are two interlocking parts 22, and the positioning part 41 is arranged in the interval area between the two interlocking parts 22. The locking member 3 is fixedly arranged on the two interlocking parts 22 in a limited position.

[0054] As a variation, a guide cavity is provided on the adjusting member 2, and a plug portion is provided on the knob 4. The plug portion and the guide cavity are slidably arranged, one or more plug portions are provided, and the guide cavity and the plug portion are correspondingly arranged. The plug portion moves along the guide path configured by the guide cavity.

[0055] In one embodiment, see Figure 3 The adjusting member 2 is provided with an extended connecting portion 23 on one side facing the elastic element 7. The first connecting end of the elastic element 7 is sleeved and mounted on the connecting portion 23. The connecting portion 23 and the positioning portion 41 can slide relative to each other. The positioning portion 41 is provided with a sliding groove for the connecting portion 23 to slide.

[0056] In this embodiment, the elastic element 7 can be a compression spring, or a tension spring, a constant force spring, a gas spring, etc., which can provide elastic force to the adjusting member 2 and the knob 4.

[0057] In the adjustment mechanism provided in this embodiment, the user applies force to the operating part 21 on the adjusting member 2, so that the operating part 21 drives the plug-in part 22 and the rotating component to slide relative to each other, so as to overcome the elastic force of the elastic element 7, thereby releasing the locking member 3 and the mounting component away from each other. At this time, the adjustment mechanism can be in an unlocked state, and then the adjusting member 2 drives the rotating component and the operating wire 8 to rotate together, so that the operating wire 8 is bent; when the user does not apply force, the adjusting member 2 drives the locking member 3 and the mounting component to approach the limit position under the elastic force of the elastic element 7, so that the adjustment mechanism is in a self-locking state; the present invention integrates self-locking and unlocking bending functions, and its operation process is simple and coherent, without the need to perform additional locking or unlocking steps, thereby reducing the labor intensity and operation difficulty of medical staff, which is conducive to improving surgical efficiency and safety and reducing patient discomfort.

[0058] In this embodiment, see Figures 1 to 3 One end of the support member 11 is connected to the mounting seat 12, and the other end of the support member 11 passes through the winding wheel 5 and extends into the knob 4 to cooperate with the locking member 3 in a limited position, and the support member 11 and the knob 4 are rotatably arranged.

[0059] As an exemplary embodiment, see Figure 2 and Figure 3 The support member 11 is arranged on the side of the locking member 3 close to the elastic element 7; the elastic element 7 is preset with a preload force that can expand, so that the adjusting member 2 and the positioning portion 41 have a tendency to move away from each other, so that the locking member 3 is driven by the adjusting member 2 to approach and adhere to the support member 11. In this structure of the adjustment mechanism, the user can unlock the bending control function by pressing the operating portion 21 inward, so that the plug-in portion 22 enters the guide cavity 42, and then applies a circumferential thrust to the operating portion 21 along the rotation circumference of the rotating assembly. The operating wire 8 drives the bending portion at the front end of the endoscope to bend to achieve bending control. When the bending is adjusted to the desired angle, the user releases the operating portion 21, and the bending control will automatically enter the locked state. The bending portion at the front end of the endoscope remains at the adjusted bending angle. The operator can release the operating portion 21 and perform other endoscopic operations. The entire bending operation process is simple and coherent, without the need for additional locking or unlocking steps, thereby reducing the operator's operating steps, saving time, and making the surgical process smoother and more efficient.

[0060] As a variation, the support member 11 is arranged on the side of the locking member 3 away from the elastic element 7, and the elastic element 7 is preset with a preload force that can shrink, so that the adjusting member 2 and the positioning portion 41 have a tendency to move closer together, so that the locking member 3 is close to and in contact with the support member 11 under the action of the adjusting member 2. In the adjustment mechanism of this structure, the user can unlock the bending control function by pressing the operating portion 21 to make the plug-in portion 22 enter the guide cavity 42, and then apply a circumferential thrust along the rotation circle of the rotating assembly to the operating portion 21 to implement the bending control of the endoscope bending portion. When the user releases the operating portion 21, the elastic element 7 rebounds, causing the plug-in portion 22 to move in the direction away from the guide cavity 42, so that the locking member 3 is attached to the support member 11, preventing the support member 11 from rotating, thereby achieving bending locking.

[0061] In one embodiment, the sliding displacement of the inserting portion 22 is set to be a straight line. Specifically, see Figures 1 to 3 The inserting portion 22 is slidingly arranged along the radial direction of the rotating circumferential surface of the rotating component. The junction of the operating portion 21 and the inserting portion 22 is constructed as a bending structure. The operating portion 21 and the knob 4 are arranged to avoid each other to provide operating space for the user's hand. When the user operates to apply the thrust for rotational bending, the operating portion 21 can have a force arm of a set length relative to the center line of the support member 11 to facilitate control and adjustment during bending.

[0062] In another embodiment, the sliding displacement of the inserting portion 22 may be set to be a curve.

[0063] See also Figure 2 and Figure 3 The locking member 3 is provided with a friction profile on the side facing the support member 11. The friction profile is configured to conform to the outer wall surface of the support member 11 that is engaged in positional engagement. In a specific embodiment, the friction profile is configured as an arcuate surface. Of course, the friction profile can be configured as a flat surface based on actual needs, as long as it can contact and positionally engage the support member 11. In a specific embodiment, the locking member 3 is configured as a silicone member; of course, the side of the support member 11 that contacts the locking member 3 can be provided with silicone. Other materials with a high friction coefficient can also be used.

[0064] See also Figure 1 and Figure 5 The rotating assembly further includes a winding wheel 5, which is fixed to the knob 4 and has a wheel groove suitable for winding the operating wire 8. When the user rotates the rotating assembly, the winding wheel 5 drives the operating wire 8 to be wound in the wheel groove, thereby achieving the bending adjustment of the endoscope bending part.

[0065] In this embodiment, see Figure 1The support member 11 is configured as a rod structure, and during the rotation of the rotating assembly, the knob 4 and the winding wheel 5 can rotate synchronously around the center line of the support member.

[0066] In some embodiments, see Figure 5 The winding wheel 5 is provided with a fixing portion 51 for fixing the operating wire 8. The operating wire 8 can be a single wire, the middle section of which is fixed to the fixing portion 51 by welding, bonding, or fastener locking. Alternatively, the operating wires 8 can be two wires, each of which has one end fixed to the fixing portion 51. The fixing portion 51 positions the operating wire 8 on the winding wheel 5 to ensure the bending accuracy of the operating wire 8 during movement.

[0067] In some embodiments, see Figure 5 The rotating assembly also includes a sleeve structure 6, which is fixed between the knob 4 and the winding wheel 5. The sleeve structure 6 is rotatably sleeved on the outer periphery of the support member 11, which can protect the outer periphery of the support member 11.

[0068] In one embodiment, see Figure 4 and Figure 5 The adjustment mechanism further includes a first sleeve 13 and a second sleeve 14, either of which is fixedly mounted on the mounting member. The first sleeve 13 and the second sleeve 14 are respectively arranged in the inlet and outlet directions of the adjustment mechanism's adjustment operating wire 8, and the operating wire 8 is adapted to be slidably mounted within either sleeve. Specifically, two operating wires 8 are provided, each of which is fixedly mounted on the winding wheel 5, wherein the first operating wire 8 is slidably mounted within the first sleeve 13, and the second operating wire 8 is slidably mounted within the second sleeve 14. When the winding wheel 5 rotates, it can pull the first operating wire 8 to move relative to the first sleeve 13 or pull the second operating wire 8 to move relative to the second sleeve 14, thereby achieving the purpose of bending control.

[0069] Example 2

[0070] This embodiment provides an endoscope, including the adjustment mechanism of Example 1.

[0071] The endoscope proposed in this embodiment can be an electronic endoscope, or an ultrasonic endoscope or ultrasonic bronchoscope with an ultrasonic array at its end, for implementing bending control of the endoscope's bending adjustment portion. The present invention directly integrates automatic locking, unlocking, and bending adjustment functions into the adjustment member 2 of the adjustment mechanism, resulting in a high degree of integration. Its structure is simple, compact, and lightweight, optimizing the size and weight of the endoscope's adjustment mechanism, thereby making the endoscope's bending adjustment operation more flexible and easy to use.

[0072] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An adjustment mechanism, characterized in that: include: A mounting member adapted to be fixed to the housing of the endoscope; Adjustment member (2); A locking member (3) is provided on the adjusting member (2); A rotating assembly is suitable for assembling an operating line (8), wherein the rotating assembly and the mounting member are configured to rotate, and the adjusting member (2) and the rotating assembly are configured to slide; and an elastic element (7), wherein a first connection end of the elastic element (7) is connected to the adjusting member (2), and a second connection end of the elastic element (7) is connected to the rotating assembly; Wherein, under the elastic force of the elastic element (7), the adjusting member (2) can drive the locking member (3) and the mounting component to approach a limit position, so that the adjusting mechanism is in a self-locking state; Under the action of an external force, the adjusting member (2) can slide relative to the rotating assembly to overcome the elastic force of the elastic element (7), drive the locking member (3) and the mounting member to move away from each other and release, so that the adjusting mechanism is in an unlocked state, allowing the adjusting member (2) to drive the rotating assembly and the operating wire (8) to rotate together.

2. The adjustment mechanism according to claim 1, characterized in that: The adjusting member (2) is provided with an operating portion (21) and an inserting portion (22) that are engaged with each other, and the operating portion (21) is suitable for a user to apply force to operate; the rotating assembly includes a knob (4), a guide cavity (42) is provided in the knob (4), the inserting portion (22) extends into the guide cavity (42), and the inserting portion (22) and the guide cavity (42) are slidably arranged.

3. The adjustment mechanism according to claim 2, characterized in that: The rotating assembly further comprises a winding wheel (5), the winding wheel (5) and the knob (4) are fixedly arranged, and the winding wheel (5) is provided with a wheel groove, and the wheel groove is suitable for installing the operating wire (8).

4. The adjustment mechanism according to claim 3, characterized in that: The mounting member comprises a support member (11) and a mounting seat (12); one end of the support member (11) is connected to the mounting seat (12), and the other end of the support member (11) passes through the winding wheel (5) and extends into the knob (4) to cooperate with the locking member (3) in a limited manner, and the support member (11) and the knob (4) are rotatably arranged.

5. The adjustment mechanism according to claim 4, characterized in that: The support member (11) is arranged on a side of the locking member (3) close to the elastic element (7); or The support member (11) is arranged on a side of the locking member (3) away from the elastic element (7).

6. The adjustment mechanism according to claim 4, characterized in that: A friction profile surface is provided on the side of the locking member (3) facing the support member (11), and the friction profile surface is arranged in conformal correspondence with the outer wall surface of the support member (11) that is in positional engagement; and / or The rotating assembly further comprises a sleeve structure (6), wherein the sleeve structure (6) is fixedly arranged between the knob (4) and the winding wheel (5), and the sleeve structure (6) is rotatably sleeved on the outer periphery of the support member (11).

7. The adjustment mechanism according to claim 3, characterized in that: The winding wheel (5) is provided with a fixing portion (51), and the fixing portion (51) is used to fix the operating wire (8).

8. The adjustment mechanism according to any one of claims 2 to 7, characterized in that: The knob (4) is provided with a positioning portion (41), a first connection end of the elastic element (7) is connected to a portion of the adjusting member (2) facing the positioning portion (41), and a second connection end of the elastic element (7) is connected to the positioning portion (41); and / or The inserting portion (22) is slidably arranged along the radial direction of the rotating circumferential surface of the rotating assembly, and the junction between the operating portion (21) and the inserting portion (22) is constructed as a bent structure.

9. The adjustment mechanism according to claim 8, characterized in that: The adjusting member (2) is provided with an extended connecting portion (23) on one side facing the elastic element (7); the first connecting end of the elastic element (7) is sleeve-mounted on the connecting portion (23); and the connecting portion (23) and the positioning portion (41) are capable of sliding relative to each other.

10. The adjustment mechanism according to any one of claims 1 to 7, characterized in that: The adjustment mechanism further comprises a first sleeve (13) and a second sleeve (14), either sleeve being fixedly arranged on the mounting member, the first sleeve (13) and the second sleeve (14) being respectively arranged in the in-and-out direction of the adjustment mechanism for adjusting the operating wire (8), and the operating wire (8) being suitable for being slidably arranged in either sleeve.

11. An endoscope, characterized in that: Comprising the adjustment mechanism according to any one of claims 1 to 10.

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