Wheel-type traction mechanism for optical fiber bundle of endoscope, handle and endoscope

Abstract

The present invention provides a wheeled traction mechanism, a handle, and an endoscope for an endoscope's optical fiber bundle, belonging to the technical field of endoscopes. The wheeled traction mechanism includes a traction wheel, at least one set of optical fiber bundles, and at least one set of anti-bending plates. A fixing member is provided on the circumferential side wall of the traction wheel, and the fixing member is used to fix the optical fiber bundle; the optical fiber bundle is fixed to the fixing member; the anti-bending plate includes a connecting plate body and an attachment portion. The connecting plate body is connected to the traction wheel via the attachment portion. A first gap is provided between the connecting plate body and the circumferential side wall of the traction wheel, and the optical fiber bundle passes through the first gap. The end of the connecting plate body near the traction wheel bends in a direction away from the optical fiber bundle. The present invention supports the optical fiber bundle through the anti-bending plate to prevent the optical fiber bundle from bending at the fixed position with the fixing member when the traction wheel rotates at an excessively large angle.

Description

Technical Field

[0001] The present invention belongs to the technical field of endoscopes, and in particular relates to a wheeled traction mechanism for an optical fiber bundle of an endoscope, a handle and an endoscope. Background Art

[0002] Endoscopes are widely used in modern medicine. During specific use, the active bending section of the insertion part can be bent by pulling the traction rope, thereby controlling the bending direction of the front end of the insertion part and obtaining image information of the target position.

[0003] In the structure of the endoscope, the instrument tube and the optical fiber bundle are both arranged in the installation channel of the active bending section, which limits the layout space of the instrument tube. Therefore, related technologies have emerged that use optical fiber bundles instead of traction ropes to achieve the pulling function. However, due to material limitations, the optical fiber bundle is fragile and easy to break, and it is necessary to avoid bending and deformation of the optical fiber bundle during use; however, the traction rope fixing method of the existing traction structure is not suitable for the optical fiber bundle. If the existing traction rope fixing method is directly selected to fix the optical fiber bundle in the endoscope handle, the optical fiber bundle will be damaged. Summary of the Invention

[0004] The purpose of this application is to provide a wheeled traction mechanism, a handle and an endoscope for an optical fiber bundle of an endoscope, so as to solve the above-mentioned technical problems existing in the prior art.

[0005] This application is implemented as follows:

[0006] In the first aspect, the present application provides a wheel-type traction mechanism for an endoscope's optical fiber bundle, comprising a traction wheel, a fixing member is provided on the circumferential side wall of the traction wheel, the fixing member is used to fix the optical fiber bundle; at least one group of optical fiber bundles, the optical fiber bundles are fixed to the fixing member; at least one group of anti-bending plates, the anti-bending plates comprise a connecting plate body and an attachment portion, the connecting plate body is connected to the traction wheel via the attachment portion, a first gap is provided between the connecting plate body and the circumferential side wall of the traction wheel, the optical fiber bundle passes through the first gap, and the end of the connecting plate body close to the traction wheel is bent in a direction away from the optical fiber bundle.

[0007] In the above technical solution, in order to prevent the optical fiber bundle from bending at the position connected to the fixing part due to the traction wheel rotating at too large an angle during the rotation of the traction wheel, an anti-bending plate is provided between the optical fiber bundle and the traction wheel. The connecting plate body of the anti-bending plate is connected to the traction wheel through an attachment portion. The optical fiber bundle passes through a first gap between the connecting plate body and the traction wheel. Since the end of the connecting plate body close to the traction wheel is bent in the direction away from the optical fiber bundle, when the traction wheel rotates at too large an angle, the optical fiber bundle can be laid on one side of the raised surface of the connecting plate body. The connecting plate body limits the bending direction of the optical fiber bundle and supports the optical fiber bundle, thereby preventing the optical fiber bundle from bending at the fixed position with the fixing part.

[0008] Furthermore, the attachment portion is sleeved outside the traction wheel along the radial direction of the traction wheel, one end of the attachment portion is connected to the connecting piece body, and the other end is connected to the traction wheel. The attachment portion is directly sleeved outside the traction wheel, which can improve the connection stability between the attachment portion and the traction wheel.

[0009] Furthermore, the end face of the traction wheel is provided with at least one set of first limiting members, which are located on the side of the attachment portion away from the axis of the traction wheel. The first limiting members are used to limit the position of the attachment portion to prevent the attachment portion from detaching from the traction wheel.

[0010] Furthermore, the surface of the first limiting member close to the attachment portion is a first limiting surface. Along the direction from the attachment portion to the connecting piece body, both ends of the first limiting surface are bent in the direction away from the attachment portion. The structure of the first limiting surface is a curved surface structure with both ends bent. When the traction wheel rotates, the contact point between the attachment portion and the first limiting surface will also change. Due to the curved surface structure of the first limiting surface, the first limiting member can stably fit with the attachment portion when limiting the attachment portion.

[0011] Furthermore, it also includes at least one positioning member fixed inside the endoscope handle, the positioning member is located on the side of the connecting piece body away from the optical fiber bundle, and the positioning member is used to limit the position of the connecting piece body and the position of the anti-bending piece inside the endoscope handle.

[0012] Furthermore, at least one set of second limiting members is provided on the end face of the traction wheel. The second limiting members are located on the side of the attachment portion close to the axis of the traction wheel to cooperate with the attachment portion in limiting position. The second limiting members are used to limit the distance between the attachment portion and the axis of the traction wheel to prevent the attachment portion from being too close to the axis of the traction wheel.

[0013] Furthermore, the surface of the second limiting member close to the attachment portion is a second limiting surface, and along the direction from the attachment portion to the connecting piece body, both ends of the second limiting surface are bent in a direction away from the attachment portion.

[0014] Furthermore, the connecting piece body and the attachment portion are integrally formed.

[0015] In a second aspect, the present application provides an endoscope handle, comprising the wheeled traction mechanism for the optical fiber bundle of the endoscope provided in the first aspect.

[0016] In a third aspect, the present application provides an endoscope, comprising the endoscope handle provided in the second aspect.

[0017] 1. In the present invention, an anti-bending sheet is provided between the optical fiber bundle and the traction wheel. When the traction wheel rotates, the anti-bending sheet can provide a certain support for the optical fiber bundle, so that the optical fiber bundle bends in a prescribed direction, thereby avoiding bending of the optical fiber bundle and maintaining the structural integrity of the optical fiber bundle.

[0018] 2. In the present invention, a first limiter is provided to limit the position of the anti-bending sheet on the traction wheel, so that the anti-bending sheet can be used to support the optical fiber bundle during the rotation of the traction wheel, and the anti-bending sheet is prevented from being detached from the traction wheel under the action of the optical fiber bundle when the rotation angle of the traction wheel is too large.

[0019] 3. In the present invention, the first limiting member, the second limiting member and the positioning member cooperate to stabilize the position of the connecting piece body in the endoscope handle, and also stabilize the supporting effect of the connecting piece body on the optical fiber bundle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a schematic diagram of fixing an optical fiber bundle using a traction rope provided by the present invention;

[0022] Figure 2 It is a schematic structural diagram of the anti-bending sheet provided by the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the traction mechanism provided by the present invention. Figure 1 ;

[0024] Figure 4 The traction wheel rotation state of the traction mechanism provided by the present invention Figure 1 ;

[0025] Figure 5 The traction wheel rotation state of the traction mechanism provided by the present invention Figure 2 ;

[0026] Figure 6 This is a schematic diagram of the structure of the traction mechanism provided by the present invention. Figure 2 ;

[0027] Figure 7 The traction wheel rotation state of the traction mechanism provided by the present invention Figure 3 ;

[0028] Figure 8 This is a schematic diagram of the structure of the traction mechanism provided by the present invention. Figure 3 ;

[0029] Figure 9 It is a structural schematic diagram of the endoscope handle provided by the present invention.

[0030] Description of reference numerals:

[0031] 100 - traction wheel, 110 - fixing member, 120 - first limiting member, 130 - second limiting member, 200 - anti-bending piece, 210 - connecting piece body, 220 - attachment part, 300 - first gap, 400 - optical fiber bundle, 500 - positioning member, 600 - endoscope handle. DETAILED DESCRIPTION

[0032] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0033] In the related art, the optical fiber bundle 400 is chosen to replace the traditional traction rope, so that the optical fiber bundle 400 will no longer occupy the layout space within the active bending section of the insertion part, thereby increasing the layout space of the instrument tube; however, since the optical fiber bundle 400 is brittle and easy to break, in order to avoid damaging the optical fiber bundle 400, the traditional traction rope fixing method cannot be used to directly fix the optical fiber bundle 400.

[0034] The present application chooses to use a wheel-type traction mechanism to fix the optical fiber bundle 400. The optical fiber bundle 400 is fixed on the circumferential side wall of the traction wheel 100. The optical fiber bundle 400 changes its position as the traction wheel 100 rotates, thereby pulling the active bending section of the insertion part to achieve bending or straightening of the active bending section. During the rotation of the traction wheel 100, if the rotation angle of the traction wheel 100 is too large, the optical fiber bundle 400 and the fixing point of the traction wheel 100 rotate to a position too close to the insertion part, that is, close to the distal end of the optical fiber bundle 400, such as Figure 1 As shown, at this time, there is a fold angle between the optical fiber bundle 400 between the distal end of the optical fiber bundle 400 and the traction wheel 100 and the optical fiber bundle 400 fixed on the traction wheel 100. If it is a traction rope structure in traditional technology, the fold angle will not affect the normal use of the traction rope. However, if the optical fiber bundle 400 is used instead of the traction rope, due to the brittle and easily broken structure of the optical fiber bundle 400, the optical fiber bundle 400 is extremely easy to be damaged after the fold angle occurs, and the damaged optical fiber bundle 400 will not be able to transmit relevant information.

[0035] Therefore, in order to avoid bending and damage of the optical fiber bundle 400 and maintain the structural integrity of the optical fiber bundle 400, some embodiments of the present application set an anti-bending plate 200 between the traction wheel 100 and the optical fiber bundle 400, and set a curved connecting plate body 210 to limit the bending direction of the optical fiber bundle 400, thereby avoiding bending of the optical fiber bundle 400 and avoiding damage caused by bending of the optical fiber bundle 400.

[0036] It should be noted that in each embodiment of the present application, "proximal end" and "distal end" refer to the distance between the endoscope and its accessories and 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".

[0037] The embodiments of the present application do not limit the specific type of the optical fiber bundle 400. For example, it can be an optical fiber bundle 400 for lighting, used to transmit light from a light source to the distal side of the insertion part, or it can be an optical fiber bundle 400 for photographing, used to transmit external light on the distal side of the insertion part back to the camera module.

[0038] The technical solutions disclosed in various embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0039] Example 1

[0040] This embodiment provides a wheeled traction mechanism for an endoscope optical fiber bundle, combined with Figures 2 to 8 As shown, it includes a traction wheel 100, a fixing part 110 is provided on the circumferential side wall of the traction wheel 100, and the fixing part 110 is used to fix the optical fiber bundle 400; at least one group of optical fiber bundles 400, the optical fiber bundles 400 are laid on the circumferential side wall of the traction wheel 100, and the optical fiber bundles 400 are fixed to the fixing part 110; at least one group of anti-bending plates 200, the optical fiber bundles 400 and the anti-bending plates 200 are generally one-to-one corresponding, and the anti-bending plates 200 include a connecting plate body 210 and an attachment portion 220, the connecting plate body 210 is connected to the traction wheel 100 through the attachment portion 220, and a first gap 300 is provided between the connecting plate body 210 and the circumferential side wall of the traction wheel 100, and the optical fiber bundle 400 is laid on the circumferential side wall of the traction wheel 100 through the first gap 300, and the end of the connecting plate body 210 close to the traction wheel 100 is bent in a direction away from the optical fiber bundle 400.

[0041] During specific implementation, the distal end of the optical fiber bundle 400 is located at the distal end of the insertion portion, the proximal end of the optical fiber bundle 400 sequentially passes through the first gap 300 and is laid on the circumferential side wall of the traction wheel 100, and then the optical fiber bundle 400 is fixed to the fixing member 110, and the proximal end of the optical fiber bundle 400 passes over the traction wheel 100 and is connected to the corresponding device to transmit light source information or receive related information. Since the connecting piece body 210 is bent in the direction away from the optical fiber bundle 400, that is, the connecting piece body 210 is convexly arranged toward the position where the optical fiber bundle 400 is located, combined with Figure 4As shown, when the traction wheel 100 rotates counterclockwise, the curved connecting piece body 210 limits the bending direction of the optical fiber bundle 400, and the curved structure of the connecting piece body 210 provides a certain support for the optical fiber bundle 400, thereby preventing the optical fiber bundle 400 from bending. In other embodiments, in order to enhance the support of the connecting piece body 210 for the optical fiber bundle 400 and prevent the optical fiber bundle 400 from being damaged, the end of the connecting piece body 210 away from the traction wheel 100 may also be bent in a direction away from the optical fiber bundle 400.

[0042] In some embodiments, the attachment portion 220 is directly sleeved outside the traction wheel 100 along the radial direction of the traction wheel 100, so that the anti-bending plate 200 is arranged perpendicular to the end face of the traction wheel 100, and one end of the attachment portion 220 is connected to the connecting plate body 210, and the other end is connected to the traction wheel 100. Since the attachment portion 220 is sleeved outside the traction wheel 100, and the attachment portion 220 has only one fixed point at the end connected to the traction wheel 100, the position of the connecting plate body 210 connected to the other end of the attachment portion 220 can be controlled by controlling the position of the attachment portion 220 at the end face of the traction wheel 100, thereby controlling the bending position of the optical fiber bundle 400. In addition, the attachment portion 220 is directly sleeved outside the traction wheel 100, which can improve the connection stability between the attachment portion 220 and the traction wheel 100.

[0043] Combine Figures 3 to 8 As shown, when the attachment portion 220 is connected to the connecting piece body 210, the attachment portion 220 is connected to both sides of the connecting piece body 210, and the connection position is located in the middle position in the length direction of the connecting piece body 210 to maintain the balance of the connecting piece body 210 and maintain the relative position of the connecting piece body 210 and the attachment portion 220 stable. In other embodiments, the connection position of the attachment portion 220 and the connecting piece body 210 can be other positions, and it is only necessary to ensure that the first gap 300 between the connecting piece body 210 and the circumferential side wall of the traction wheel 100 can allow the optical fiber bundle 400 to pass through.

[0044] At least one set of first limiting members 120 is provided on the end face of the traction wheel 100. The first limiting members 120 are located on the side of the attachment portion 220 away from the axis of the traction wheel 100. The first limiting members 120 are used to limit the position of the attachment portion 220 at the end face of the traction wheel 100, so that the connecting piece body 210 can always support the optical fiber bundle 400 to prevent the optical fiber bundle 400 from bending. At the same time, it can also prevent the anti-bending sheet 200 from detaching from the traction wheel 100 under the action of the optical fiber bundle 400 when the traction wheel 100 rotates at an excessive angle.

[0045] When the traction wheel 100 rotates, the optical fiber bundle 400 will impose certain constraints on the connecting piece body 210, and the connecting piece body 210 and the attachment portion 220 are an integral structure. The contact point between the first limiting member 120 and the attachment portion 220 will change. The surface of the first limiting member 120 close to the attachment portion 220 is the first limiting surface. Along the direction from the attachment portion 220 to the connecting piece body 210, the two ends of the first limiting surface are bent in the direction away from the attachment portion 220. The overall structure of the first limiting surface is a curved surface structure. When the traction wheel 100 rotates, the attachment portion 220 and the first limiting surface are constantly changing. Since the first limiting surface is a curved surface structure, when the first limiting surface is in contact with the attachment portion 220, the two can be stably fitted together to avoid the situation where the edge corners of the attachment portion 220 are tightly attached to the first limiting surface.

[0046] In order to further limit the stability of the bending position of the optical fiber bundle 400 inside the endoscope handle 600, a positioning member 500 is installed inside the endoscope handle 600. The positioning member 500 is located on the side of the connecting piece body 210 away from the optical fiber bundle 400. The positioning member 500 is used to limit the position of the connecting piece body 210. No matter which direction the traction wheel 100 rotates, the positioning member 500 can limit the relative stability of the position of the connecting piece, thereby limiting the stability of the position of the optical fiber bundle 400 between the distal end of the optical fiber bundle 400 and the traction wheel 100. Figure 4 and Figure 5 As shown, when the traction wheel 100 rotates clockwise, the positioning member 500 limits the rotation tendency of the connecting piece body 210, preventing the connecting piece body 210 from moving in a direction away from the traction wheel 100. In this embodiment, the positioning member 500 is a cylindrical structure, and the outer side wall structure of the cylindrical structure can better fit with the connecting piece body 210. In other embodiments, the positioning member 500 can also be other structures, such as a strip structure.

[0047] When the traction wheel 100 rotates clockwise, in order to prevent the attachment portion 220 from being too close to the axis of the traction wheel 100, which would affect the rotation of the traction wheel 100, at least one set of second limiting members 130 is provided on the end surface of the traction wheel 100. The second limiting members 130 are located on the side of the attachment portion 220 close to the axis of the traction wheel 100 to cooperate with the attachment portion 220 to limit the position. Figure 4 and Figure 5 As shown, when the traction wheel 100 rotates clockwise, Figure 4 becomes Figure 5 When the second limiting member 130 is in a state of being able to support the attachment portion 220 , the attachment portion 220 is prevented from sliding down to the axis of the traction wheel 100 under the action of the positioning member 500 , thereby affecting the rotation of the traction wheel 100 .

[0048] Similar to the first limiting member 120, the surface of the second limiting member 130 close to the attachment portion 220 is a second limiting surface, and along the direction from the attachment portion 220 to the connecting piece body 210, the two ends of the second limiting surface are bent in the direction away from the attachment portion 220; the structure of the second limiting member 130 can be the same as the first limiting member 120, or it can be other structures. In this embodiment, if two groups of optical fiber bundles 400 are used to control the active bending section of the insertion portion, then two groups of second limiting members 130 need to be set accordingly. The second limiting member 130 can be directly replaced by an annular protrusion on the end face of the traction wheel 100, and the annular protrusion supports the attachment portion 220 more comprehensively and has a larger support range than the sheet-like limiting structure.

[0049] Combine Figures 6 to 8 As shown, the traction mechanism has two sets of positioning members 500, two sets of anti-bending sheets 200, two sets of optical fiber bundles 400, two sets of first limiting members 120, two sets of positioning and two sets of second limiting members 130, and the optical fiber bundles 400 are set one-to-one corresponding to the anti-bending sheets 200. Figure 7 When the traction wheel 100 shown rotates, whether clockwise or counterclockwise, the movement states of the two groups of optical fiber bundles 400 are opposite. When the traction wheel 100 rotates clockwise, the upper attachment portion 220 contacts the first limiting member 120 and the positioning member 500. The first limiting member 120 limits the position of the attachment portion 220 to prevent the attachment portion 220 from being too upward. The positioning member 500 is used to limit the position of the connecting piece body 210. The positioning member 500 cooperates with the first limiting member 120 to limit the anti-bending piece 200 within a certain range, so that The anti-bending sheet 200 can stably support the optical fiber bundle 400; the lower attachment portion 220 contacts the second limiting member 130 and the positioning member 500, the second limiting member 130 limits the tendency of the attachment portion 220 to move toward the axis of the traction wheel 100, and the positioning member 500 is used to limit the tendency of the connecting piece body 210 to move toward the outside of the traction wheel 100. The second limiting member 130 and the positioning member 500 cooperate together to limit the anti-bending sheet 200 within a certain range, thereby stabilizing the supporting effect of the connecting piece body 210 on the optical fiber bundle 400.

[0050] In some embodiments, as Figure 8 As shown, the ends of the two anti-bending sheets 200 connected to the traction wheel 100 are connected together. On the one hand, it is convenient to connect the two anti-bending sheets 200 to the traction wheel 100, and only needs to be installed once. On the other hand, the two anti-bending sheets 200 restrain each other, and the connection between the anti-bending sheets 200 and the traction wheel 100 is more stable.

[0051] In this embodiment, the connecting plate body 210 and the attachment portion 220 are integrally formed to reduce the connection points of the structure and avoid damage to the anti-bending plate 200 when subjected to force when the traction wheel 100 rotates. The anti-bending plate 200 is generally made of an alloy material and has a certain toughness and strength. It can bend to a certain extent under the action of external force. After the external force is removed, it can also return to its original state or has a tendency to return to its original state.

[0052] Example 2

[0053] This embodiment provides an endoscope handle, combined with Figure 9 As shown, the optical fiber bundle of the endoscope provided in Example 1 is provided with a wheeled traction mechanism.

[0054] Example 3.

[0055] This embodiment provides an endoscope, including the endoscope handle 600 provided in Example 2; the endoscope in the embodiment of the present application can 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 embodiment of the present application does not impose any specific restrictions on the type of endoscope.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wheel-type traction mechanism for an endoscope optical fiber bundle, characterized in that: include A traction wheel (100), wherein a fixing member (110) is provided on a circumferential side wall of the traction wheel (100), and the fixing member (110) is used to fix the optical fiber bundle (400); at least one set of optical fiber bundles (400), the optical fiber bundles (400) being fixed to the fixing member (110); At least one group of anti-bending sheets (200), the anti-bending sheets (200) comprising a connecting sheet body (210) and an attachment portion (220), the connecting sheet body (210) being connected to the traction wheel (100) via the attachment portion (220), a first gap (300) being defined between the connecting sheet body (210) and a circumferential side wall of the traction wheel (100), the optical fiber bundle (400) passing through the first gap (300), and an end portion of the connecting sheet body (210) close to the traction wheel (100) being bent in a direction away from the optical fiber bundle (400).

2. The wheel-type traction mechanism for an endoscope optical fiber bundle according to claim 1, characterized in that: The attachment portion (220) is sleeved outside the traction wheel (100) along the radial direction of the traction wheel (100), one end of the attachment portion (220) is connected to the connecting piece body (210), and the other end is connected to the traction wheel (100).

3. The wheel-type traction mechanism for an endoscope optical fiber bundle according to claim 2, characterized in that: At least one set of first position-limiting members (120) is provided on the end surface of the traction wheel (100), and the first position-limiting members (120) are located on a side of the attachment portion (220) away from the axis of the traction wheel (100).

4. The wheel-type traction mechanism for an endoscope optical fiber bundle according to claim 3, characterized in that: The surface of the first limiting member (120) close to the attachment portion (220) is a first limiting surface, and along the direction from the attachment portion (220) to the connecting piece body (210), both ends of the first limiting surface are bent in a direction away from the attachment portion (220).

5. The wheel-type traction mechanism for an endoscope optical fiber bundle according to claim 2, characterized in that: It also includes at least one positioning member (500) fixed inside the endoscope handle (600), the positioning member (500) is located on the side of the connecting piece body (210) away from the optical fiber bundle (400), and the positioning member (500) is used to limit the position of the connecting piece body (210).

6. The wheel-type traction mechanism for an endoscope optical fiber bundle according to claim 5, characterized in that: The end surface of the traction wheel (100) is provided with at least one set of second position-limiting members (130), and the second position-limiting members (130) are located on a side of the attachment portion (220) close to the axis of the traction wheel (100) to cooperate with the attachment portion (220) in a position-limiting manner.

7. The wheel-type traction mechanism for an endoscope optical fiber bundle according to claim 6, characterized in that: The surface of the second limiting member (130) close to the attachment portion (220) is a second limiting surface, and along the direction from the attachment portion (220) to the connecting piece body (210), both ends of the second limiting surface are bent in a direction away from the attachment portion (220).

8. The wheel-type traction mechanism for an endoscope optical fiber bundle according to claim 1, characterized in that: The connecting piece body (210) and the attachment portion (220) are integrally formed.

9. An endoscope handle, characterized in that: A wheeled traction mechanism for an optical fiber bundle of an endoscope comprising the method according to any one of claims 1 to 8.

10. An endoscope, characterized in that: Including the endoscope handle (600) described in claim 9.

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