A linear traction mechanism, a handle and an endoscope for an optical fiber bundle of an endoscope

Abstract

The present invention provides a linear traction mechanism, a handle and an endoscope for an optical fiber bundle of an endoscope, belonging to the technical field of endoscopes. The traction mechanism includes a driving assembly, a connecting piece, a signal transceiver device and two groups of optical fiber bundles; the driving assembly includes a transmission member and two groups of traction members, and the transmission member is used to drive the two groups of traction members to move synchronously and in opposite directions; both ends of the connecting piece are bent towards the same side of the connecting piece, the connecting piece is connected between the two groups of traction members, and the protruding direction of the connecting piece is away from the transmission member; the optical fiber bundles are fixedly connected to the traction members, the proximal ends of the two groups of optical fiber bundles are both connected to the signal transceiver device, and the signal transceiver device is installed on the surface of the connecting piece; the signal transceiver device and the optical fiber bundles between the signal transceiver device and the traction members are all located on the side of the connecting piece away from the transmission member. In the present invention, the signal transceiver device, the optical fiber bundles and the traction members can move synchronously, avoiding the situation that the optical fiber bundles between the signal transceiver device and the traction members are pulled and damaged.

Description

Technical Field

[0001] The present invention belongs to the technical field of endoscopes, and particularly relates to a linear traction mechanism, a handle and an endoscope for an optical fiber bundle of 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 a traction rope, so as to control the bending direction of the front end of the insertion part and obtain image information of the target position.

[0003] In the structure of an endoscope, both the instrument tube and the optical fiber bundle are arranged in the installation channel of the active bending section, resulting in limited layout space for the instrument tube. Therefore, related technologies using an optical fiber bundle instead of a traction rope to achieve the pulling function have emerged. However, due to material limitations, the optical fiber bundle is fragile and easy to break, and it is necessary to avoid bending and deforming the optical fiber bundle during use; but the fixing method of the traction rope 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 the present application is to provide a linear traction mechanism, a handle and an endoscope for an optical fiber bundle of an endoscope, so as to solve the above technical problems existing in the prior art.

[0005] The present application is implemented as follows:

[0006] In a first aspect, the present application provides a linear traction mechanism for an optical fiber bundle of an endoscope, including a driving assembly, a connecting piece, a signal transceiver device and two groups of optical fiber bundles; the driving assembly includes a transmission member and two groups of traction components, and the transmission member is used to drive the two groups of traction components to move synchronously and in opposite directions; both ends of the connecting piece are bent towards the same side of the connecting piece, one end of the connecting piece is fixedly connected to one of the two groups of traction components, the other end is fixedly connected to the other, and the protruding direction of the connecting piece is away from the transmission member; the two groups of optical fiber bundles are arranged in one-to-one correspondence with the two groups of traction components, the optical fiber bundle is fixedly connected to the traction component, the proximal ends of the two groups of optical fiber bundles are both connected to the signal transceiver device, and the signal transceiver device is installed on the surface of the connecting piece; the signal transceiver device and the optical fiber bundles between the signal transceiver device and the traction component are both located on the side of the connecting piece away from the transmission member.

[0007] In the above technical solution, the proximal end of the fiber optic bundle is directly connected to the signal transceiver device. When the connecting piece moves along with the movement of the traction component, the signal transceiver device can also move accordingly, ensuring that the signal transceiver device, the fiber optic bundle, and the traction component can move synchronously, maintaining the length of the connecting piece between the signal transceiver device and any traction component unchanged, thereby avoiding the situation where the fiber optic bundle connected between the signal transceiver device and the traction component is pulled and damaged; the fiber optic bundle connected between the signal transceiver device and the traction component is laid on the surface of the connecting piece, and the connecting piece supports the fiber optic bundle. At the same time, since both ends of the connecting piece are bent in the same direction, when the two ends of the connecting piece move in opposite directions respectively, within a certain range, the bending structure of the connecting piece changes little, and the fiber optic bundle can be directly bent along the bending structure of the connecting piece. While supporting the fiber optic bundle, the connecting piece can also cooperate with the signal transceiver device and the traction component to limit the bending direction of the fiber optic bundle, avoiding the situation where the fiber optic bundle is randomly bent during the movement of the traction component and causing damage.

[0008] Further, the shortest distance between the two ends of the connecting piece is the first distance, and the length of the connecting piece is greater than half of the circumference of the circle with the first distance as the diameter. The distance of the connecting piece cannot be too short to avoid the situation where the bending degree of the fiber optic bundle is too large and kinking occurs during the movement along with the traction component.

[0009] Further, the signal transceiver device has a first interface, a second interface, and a third interface. The first interface is used to connect to a group of fiber optic bundles, the second interface is used to connect to another group of fiber optic bundles, and the third interface is used to connect to the outside; the axis of the first interface is parallel to the axis of the second interface and is tangent to the connecting piece, and the tangent position is at the installation part of the signal transceiver device and the connecting piece; when the fiber optic bundle is connected to the signal transceiver device, the structures of the first interface and the second interface can reduce the possible bending points during the connection of the fiber optic bundle, further avoiding the bending of the fiber optic bundle.

[0010] Further, the axes of the first interface and the second interface are collinearly arranged to balance the positions of the fiber optic bundles connected to both ends of the signal transceiver device and improve the smoothness of the overall equipment operation.

[0011] Further, the signal transceiver device is rotatably connected to the connecting piece through a rotating shaft. Among the signal transceiver device and the connecting piece, one of them is rotatably connected to the rotating shaft, and the other is fixedly or rotatably connected to the rotating shaft; the signal transceiver device takes the axis of the rotating shaft as the rotation axis line, and the rotating shaft is arranged along the width direction of the connecting piece. Since the connecting piece is a bent structure, when the signal transceiver device passes through the turning point of the bent connecting piece, if the signal transceiver device is directly fixed to the connecting piece, there will be a certain pulling between the two, affecting the overall use of the device. By setting the rotating shaft, when there is a pulling between the connecting piece and the signal transceiver device, the signal transceiver device can have a certain amount of movement margin, which can weaken the pulling feeling between the two and improve the smoothness and stability of the overall device use.

[0012] Further, a first connecting block is fixed on the surface of the signal transceiver device close to the connecting piece, and a second connecting block is arranged on the surface of the connecting piece facing away from the transmission member. The rotating shaft passes through the first connecting block and the second connecting block at the same time; there is a rotating gap between the first connecting block and the surface of the connecting piece; the signal transceiver device will not come into contact with the surface of the connecting piece during the rotation process, and the rotation is smoother.

[0013] Further, a first connecting block is fixed on the surface of the signal transceiver device close to the connecting piece, and a second connecting block is arranged on the surface of the connecting piece facing away from the transmission member. The rotating shaft passes through the first connecting block and the second connecting block at the same time; the surface of the first connecting block close to the connecting piece is an abutting portion, and there is a contact point between the abutting portion and the surface of the connecting piece. The abutting portion protrudes towards the connecting piece; when the signal transceiver device contacts the connecting piece, the protruding part contacts the connecting piece, which will not affect the rotation of the signal transceiver device.

[0014] Further, a limiting groove is arranged on the surface of the connecting piece facing away from the transmission member, and the length direction of the limiting groove is the same as the length direction of the connecting piece.

[0015] In the second aspect, the present application provides an endoscope handle, including the linear traction mechanism for the fiber optic bundle of the endoscope provided in the first aspect.

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

[0017] The beneficial effects of the present invention are:

[0018] 1. In the present invention, by fixing the connecting piece between the two traction components and fixing the signal transceiver device on the surface of the connecting piece, both the signal transceiver device and the connecting piece can move along with the movement of the traction component, and the length of the fiber optic bundle between the signal transceiver device and the traction component will not change, avoiding the situation that the fiber optic bundle is pulled and damaged.

[0019] 2. In the present invention, the connecting piece is bent and arranged between two traction components. After being bent, the connecting piece restricts the bending direction of the optical fiber bundle, preventing the optical fiber bundle from being randomly bent.

[0020] 3. In the present invention, the signal transceiver device is rotatably connected to the connecting piece. As the connecting piece moves, the signal transceiver device can automatically adjust the position between the two, avoiding the situation where the signal transceiver device and the connecting piece are pulled and affecting the use of the mechanism, and improving the smoothness of the overall mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments of the present invention or the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is the schematic diagram of the overall structure of the traction mechanism provided in Embodiment 1 of the present invention Figure 1 ;

[0023] Figure 2 is the schematic diagram of the overall structure of the traction mechanism provided in Embodiment 1 of the present invention Figure 2 ;

[0024] Figure 3 is the schematic diagram of the overall structure of the traction mechanism provided in Embodiment 1 of the present invention Figure 3 ;

[0025] Figure 4 is the schematic diagram of the structure of the signal transceiver device provided in Embodiment 1 of the present invention Figure 1 ;

[0026] Figure 5 is the schematic diagram of the structure of the signal transceiver device provided in Embodiment 1 of the present invention Figure 2 ;

[0027] Figure 6 is the schematic diagram of the structure of the endoscope handle provided in Embodiment 2 of the present invention.

[0028] DESCRIPTION OF THE REFERENCE NUMERALS:

[0029] 100 - driving assembly, 110 - traction component, 111 - fixed base, 112 - moving block, 120 - transmission member, 200 - connecting piece, 210 - limiting groove, 310 - optical fiber bundle, 320 - signal transceiver device, 321 - first interface, 322 - second interface, 323 - third interface, 410 - rotating shaft, 420 - first connecting block, 421 - abutting portion, 430 - second connecting block, 500 - endoscope handle. Detailed implementation manners

[0030] 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 concisely express the present invention, which are only examples and are not intended to limit the present invention.

[0031] In the related art, it is selected to replace the traditional towing rope with the optical fiber bundle 310. The optical fiber bundle 310 will no longer occupy the layout space within the active bending section of the insertion part, so that the layout space of the instrument tube can be increased; however, since the optical fiber bundle 310 is brittle and easy to break, in order to avoid damaging the optical fiber bundle 310, the traditional fixing method of the towing rope cannot be directly used to fix the optical fiber bundle 310.

[0032] This application selects to use a linear traction mechanism to fix the optical fiber bundle 310. The optical fiber bundle 310 is fixed on the traction component 110 of the linear traction mechanism. The optical fiber bundle 310 moves along with the traction component 110 in a fixed straight line direction, so as to realize the bending or straightening of the active bending section of the insertion part. The proximal end of the optical fiber bundle 310 is connected to the relevant signal transceiver device 320. Among them, the signal transceiver device 320 can be a light source box that emits light source signals, or a device that receives information conducted from the optical fiber bundle 310; since the length of the optical fiber bundle 310 between the traction component 110 and the signal transceiver device 320 is unchanged, but since the traction component 110 needs to move, the distance between the traction component 110 and the signal transceiver device 320 will change. The fixed length of the optical fiber bundle 310 is set between this distance. As the distance changes, the optical fiber bundle 310 will also bend or straighten accordingly. However, since the optical fiber bundle 310 is a brittle and easy-to-break structure, when the optical fiber bundle 310 is bent randomly, it is very easy to occur the bending phenomenon.

[0033] Therefore, in some embodiments of this application, it is selected to set the signal transceiver device 320 to move together with the traction component 110, so as to avoid the change of the distance between the signal transceiver device 320 and the traction component 110, thereby avoiding the situation that the length of the optical fiber bundle 310 between the two bends or straightens.

[0034] It should be noted that in the embodiments of this application, "proximal end" and "distal end" refer to the near and far positions of the endoscope and its accessories relative to the user in the use environment. Among them, 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".

[0035] Embodiments of the present application do not limit the specific type of the optical fiber bundle 310. For example, it can be an optical fiber bundle 310 for illumination, which is used to conduct the light of the light source to the distal side of the insertion part. Or, it can be an optical fiber bundle 310 for shooting, which is used to conduct the external light on the distal side of the insertion part back to the imaging module.

[0036] The following will describe in detail the technical solutions disclosed in each embodiment of the present application with reference to the accompanying drawings.

[0037] Embodiment 1

[0038] This embodiment provides a linear traction mechanism for an optical fiber bundle of an endoscope. As shown in Figures 1 to 5 , it includes a driving component 100, a connecting piece 200, a signal transceiver device 320, and two groups of optical fiber bundles 310. The driving component 100 is a linear driving mechanism, which is a commonly used driving mechanism in the field of endoscope technology. It includes a transmission member 120 and two groups of traction members 110. The two traction members 110 are respectively located on both sides of the transmission member 120 and cooperate with the transmission member 120. The transmission member 120 is used to drive the two groups of traction members 110 to move synchronously and in opposite directions. Both ends of the connecting piece 200 are bent towards the same side of the connecting piece 200. One end of the connecting piece 200 is fixedly connected to one of the two groups of traction members 110, and the other end is fixedly connected to the other. The protruding direction of the connecting piece 200 is away from the transmission member 120. When the traction member 110 moves, the end of the connecting piece 200 will also move, and the bending point of the connecting piece 200 will also change accordingly. The two groups of optical fiber bundles 310 are arranged in one-to-one correspondence with the two groups of traction members 110. The optical fiber bundle 310 is fixedly connected to the traction member 110. The proximal ends of the two groups of optical fiber bundles 310 are both connected to the signal transceiver device 320. The signal transceiver device 320 is installed on the surface of the connecting piece 200. The signal transceiver device 320 and the optical fiber bundle 310 between the signal transceiver device 320 and the traction member 110 are all located on the side of the connecting piece 200 away from the transmission member 120.

[0039] The signal transceiver device 320 is installed on the connecting piece 200. Both ends of the connecting piece 200 are respectively fixed to the traction components 110. When the traction components 110 move synchronously and in opposite directions under the drive of the transmission member 120, both ends of the connecting piece 200 will also move accordingly. The signal transceiver device 320 installed on the connecting piece 200 will move along with the movement of the connecting piece 200. Therefore, the length of the connecting piece 200 between the signal transceiver device 320 and the traction components 110 will not change. Correspondingly, during the movement of the traction components 110, the optical fiber bundle 310 connected between the signal transceiver device 320 and the traction components 110 will not be pulled or damaged; at the same time, the connecting piece 200 can support the optical fiber bundle 310 between the signal transceiver device 320 and the traction components 110. In addition, due to the connecting piece 200 having a bending structure, when the optical fiber bundle 310 moves, it can limit the moving direction of the optical fiber bundle 310, enabling the optical fiber bundle 310 to bend according to the bending structure of the connecting piece 200. The bending structure restricts the bending direction of the optical fiber bundle 310 and can prevent the optical fiber bundle 310 from bending randomly. The connecting piece 200 is generally made of a metal material with a certain toughness and can bend under the action of an external force. Moreover, when both ends of the connecting piece 200 move in opposite directions, the bending structure of the connecting piece 200 can remain relatively stable. Correspondingly, the bending structure of the optical fiber bundle 310 that bends according to the bending structure is also relatively stable.

[0040] During specific use, the moving directions of the two traction components 110 can be on a straight line, and the included angle between the two moving directions is 180 degrees, or they can be not on a straight line with a slight dislocation, and the included angle between the two moving directions is less than 180 degrees, mainly to be able to fit the narrow layout space in the endoscope handle 500; after the optical fiber bundle 310 is fixed to the traction components 110, the proximal end of the optical fiber bundle 310 is connected to the signal transceiver device 320. Combining Figure 1 As shown, both of the two traction components 110 are in the initial positions and have not moved. At this time, the signal transceiver device 320 is located at the part of the bending structure of the connecting piece 200 that is farthest from the transmission member 120. When the transmission member 120 starts and the traction components 110 move, as Figure 2 shown, one traction component 110 moves forward and one traction component 110 moves backward, and the signal transceiver device 320 installed on the connecting piece 200 also moves accordingly.

[0041] The length of the connecting piece 200 should be determined according to the moving range of the traction member 110 and the distance between the two traction members 110. During use, the length of the connecting piece 200 should not be too short, mainly to maintain the stability of the bending structure of the connecting piece 200. When the two ends of the connecting piece 200 move with the traction member 110, the bending point and bending arc of the connecting piece 200 can be maintained stably, and the bending arc of the connecting piece 200 will not change greatly, ensuring that the optical fiber bundle 310 will not be bent when bent. Taking the shortest distance between the two ends of the connecting piece 200 as the first distance, the length of the connecting piece 200 is greater than half of the circumference of the circle with the first distance as the diameter.

[0042] The signal transceiver device 320 provided in this embodiment has three interfaces, namely a first interface 321, a second interface 322, and a third interface 323. The first interface 321 and the second interface 322 are used to connect to the optical fiber bundle 310, and one interface corresponds to a group of optical fiber bundles 310. The third interface 323 is used to connect to the outside. When the signal transceiver device 320 is a light source box, the third interface 323 is used as a power interface. When the signal transceiver device 320 receives information conducted from the optical fiber bundle 310, the third interface 323 is used as an interface for transmitting information to the outside.

[0043] Since the optical fiber bundle 310 moves with the signal transceiver device 320 and will bend to a certain extent during the movement to adapt to the bent connecting piece 200, therefore, the connection structure between the optical fiber bundle 310 and the signal transceiver device 320 is relatively important, and it is necessary to reduce the bending points where the optical fiber bundle 310 may be bent during the movement. In this embodiment, the axis of the first interface 321 and the axis of the second interface 322 are parallel and are both tangent to the connecting piece 200. The tangent position is located at the installation part of the signal transceiver device 320 and the connecting piece 200, so that when the optical fiber bundle 310 is connected to the signal transceiver device 320, it is connected along its length direction, reducing the probability of the optical fiber bundle 310 being bent; preferably, the axis of the first interface 321 and the axis of the second interface 322 are collinearly arranged to balance the positions of the optical fiber bundles 310 connected to both ends of the signal transceiver device 320 and improve the smoothness of the overall device during use.

[0044] When the connecting piece 200 moves, when the signal transceiver device 320 moves to the bending and turning position of the connecting piece 200, if the signal transceiver device 320 is fixedly connected to the connecting piece 200 completely, a pulling force will be formed between the signal transceiver device 320 and the connecting piece 200, affecting the smoothness of the overall device during operation. In this embodiment, the signal transceiver device 320 is rotatably connected to the connecting piece 200 through a rotating shaft 410, combined with Figures 3 to 5As shown, in the signal transceiver device 320 and the connecting piece 200, one of them is rotatably connected to the rotating shaft 410, and the other is fixedly or rotatably connected to the rotating shaft 410; the signal transceiver device 320 takes the axis of the rotating shaft 410 as the rotation axis line, and the rotating shaft 410 is arranged along the width direction of the connecting piece 200. Since the connecting piece 200 is a bent structure, when the signal transceiver device 320 passes through the turning point of the bend of the connecting piece 200, by setting the rotating shaft 410, when there is a tug-of-war between the connecting piece 200 and the signal transceiver device 320, the signal transceiver device 320 can have a certain amount of movement margin, and the signal transceiver device 320 can spontaneously adjust its position relative to the connecting piece 200 to avoid tug-of-war and improve the smoothness and stability of the overall device during use.

[0045] When installing the rotating shaft 410, the axis position of the rotating shaft 410 needs to be arranged along the width direction of the connecting piece 200, mainly to reduce the length of the connection position between the signal transceiver device 320 and the connecting piece 200 and reduce the influence of the connecting piece 200 on the signal transceiver device 320 when passing through the turning point. While ensuring the stable connection between the signal transceiver device 320 and the connecting piece 200, the diameter of the rotating shaft 410 should be as small as possible.

[0046] Specifically, the connection structure between the signal transceiver device 320 and the connecting piece 200 is as Figure 4 and Figure 5 shown. A first connection block 420 is fixed on the surface of the signal transceiver device 320 close to the connecting piece 200, and a second connection block 430 is arranged on the surface of the connecting piece 200 facing away from the transmission member 120. The rotating shaft 410 passes through the first connection block 420 and the second connection block 430 at the same time, and the signal transceiver device 320 can rotate with the axis of the rotating shaft 410 as the axis line; in one implementation case, combined with Figure 4 shown, there is a rotational gap between the first connection block 420 and the surface of the connecting piece 200, and the signal transceiver device 320 will not come into contact with the surface of the connecting piece 200 during the rotation process, making the rotation smoother; in another implementation case, combined with Figure 5 shown, the surface of the first connection block 420 close to the connecting piece 200 is an abutting portion 421, and the abutting portion 421 has a contact point with the surface of the connecting piece 200. The abutting portion 421 protrudes towards the connecting piece 200. When the signal transceiver device 320 and the connecting piece 200 rotate, the protruding part is always in contact with the connecting piece 200 to ensure the rotation of the signal transceiver device 320.

[0047] In the accompanying drawings provided in this embodiment, for the convenience of understanding and viewing, there is a certain gap between the optical fiber bundle 310 and the connecting piece 200. In actual implementation, in some cases, the optical fiber bundle 310 is directly laid on the surface of the connecting piece 200. A limiting groove 210 can be provided on the surface of the connecting piece 200 facing away from the transmission member 120. The length direction of the limiting groove 210 is the same as the length direction of the connecting piece 200. The optical fiber bundle 310 is placed in the limiting groove 210 and is restricted by the limiting groove 210, so that the optical fiber bundle 310 will not move left and right.

[0048] When the traction mechanism of this embodiment is in use, the traction component 110 can be divided into two parts, a fixed base 111 and a moving block 112. The fixed base 111 is fixed inside the handle of the endoscope. The moving block 112 is slidably connected to the fixed base 111. The optical fiber bundle 310 is fixedly connected to the moving block 112. The transmission member 120 is a gear structure, and the gear structure meshes with the two moving blocks 112 at the same time. As the gear structure rotates, the two moving blocks 112 move in opposite directions at the same speed.

[0049] Embodiment 2

[0050] This embodiment provides an endoscope handle, combined with Figure 6 as shown, including the linear traction mechanism for the optical fiber bundle of the endoscope provided in Embodiment 1.

[0051] Embodiment 3

[0052] This embodiment provides an endoscope, including the endoscope handle 500 provided in Embodiment 2; the endoscope of the embodiment of the present application can be a bronchoscope, a pyeloscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a nasal endoscope, an oral endoscope, a laryngoscope, a vaginoscope, a laparoscope, an arthroscope, etc. The present application does not make specific limitations on the types of endoscopes.

[0053] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A linear traction mechanism for an optical fiber bundle of an endoscope, characterized in that it includes a driving component (100), a connecting piece (200), a signal transceiver device (320) and two groups of optical fiber bundles (310); The driving component (100) includes a transmission member (120) and two groups of traction members (110), and the transmission member (120) is used to drive the two groups of traction members (110) to move synchronously and in opposite directions; Both ends of the connecting piece (200) are bent towards the same side of the connecting piece (200). One end of the connecting piece (200) is fixedly connected to one of the two groups of traction members (110), and the other end is fixedly connected to the other. The protruding direction of the connecting piece (200) is away from the transmission member (120); The two groups of optical fiber bundles (310) are arranged in one-to-one correspondence with the two groups of traction members (110). The optical fiber bundle (310) is fixedly connected to the traction member (110). The proximal ends of the two groups of optical fiber bundles (310) are both connected to the signal transceiver device (320), and the signal transceiver device (320) is installed on the surface of the connecting piece (200); The signal transceiver device (320) and the optical fiber bundles (310) between the signal transceiver device (320) and the traction member (110) are all located on the side of the connecting piece (200) away from the transmission member (120).

2. The linear traction mechanism for the fiber optic bundle of an endoscope according to claim 1, characterized in that, The shortest distance between the two ends of the connecting piece (200) is the first distance, and the length of the connecting piece (200) is greater than half of the circumference of a circle with the first distance as the diameter.

3. The linear traction mechanism for the fiber optic bundle of an endoscope according to claim 1, characterized in that, The signal transceiver device (320) has a first interface (321), a second interface (322) and a third interface (323). The first interface (321) is used to connect to a group of optical fiber bundles (310), the second interface (322) is used to connect to another group of optical fiber bundles (310), and the third interface (323) is used to connect to the outside; The axis of the first interface (321) is parallel to the axis of the second interface (322), and both are tangent to the connecting piece (200). The tangent position is at the installation part of the signal transceiver device (320) and the connecting piece (200).

4. The linear traction mechanism for an optical fiber bundle of an endoscope according to claim 3, characterized in that, The axis of the first interface (321) and the axis of the second interface (322) are collinearly arranged.

5. The linear traction mechanism for an optical fiber bundle of an endoscope according to claim 1, characterized in that, The signal transceiver device (320) is rotatably connected to the connecting piece (200) through a rotating shaft (410). In the signal transceiver device (320) and the connecting piece (200), one of them is rotatably connected to the rotating shaft (410), and the other is fixedly or rotatably connected to the rotating shaft (410); The signal transceiver device (320) takes the axis of the rotating shaft (410) as the rotation axis line, and the rotating shaft (410) is arranged along the width direction of the connecting piece (200).

6. The linear traction mechanism for the fiber optic bundle of an endoscope according to claim 5, characterized in that, A first connection block (420) is fixed on the surface of the signal transceiver device (320) close to the connection piece (200), a second connection block (430) is arranged on the surface of the connection piece (200) facing away from the transmission member (120), and the rotating shaft (410) passes through the first connection block (420) and the second connection block (430) at the same time; A rotating gap exists between the first connection block (420) and the surface of the connection piece (200).

7. The linear traction mechanism for an optical fiber bundle of an endoscope according to claim 5, characterized in that A first connection block (420) is fixed on the surface of the signal transceiver device (320) close to the connection piece (200), a second connection block (430) is arranged on the surface of the connection piece (200) facing away from the transmission member (120), and the rotating shaft (410) passes through the first connection block (420) and the second connection block (430) at the same time; The surface of the first connection block (420) close to the connection piece (200) is an abutting portion (421), the abutting portion (421) has a contact point with the surface of the connection piece (200), and the abutting portion (421) protrudes towards the connection piece (200).

8. The linear traction mechanism for the fiber optic bundle of an endoscope according to claim 1, characterized in that, A limiting groove (210) is arranged on the surface of the connection piece (200) facing away from the transmission member (120), and the length direction of the limiting groove (210) is the same as the length direction of the connection piece (200).

9. An endoscope handle, characterized in that, It includes the linear traction mechanism for an optical fiber bundle of an endoscope according to any one of claims 1-8.

10. An endoscope, characterized in that, It includes the endoscope handle (500) according to claim 9.

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