Traction equipment for endoscope

Abstract

The invention relates to the technical field of endoscopes, and particularly discloses traction equipment for an endoscope, which comprises an endoscope rod, a first connecting rod is arranged at the tail end of the endoscope rod, and the first connecting rod is connected with a probe through a second connecting rod; the monitoring assembly is arranged at the tail end of the probe, and the contact condition of the advancing end of the probe and the inner wall of the digestive tract is monitored through the monitoring assembly; the telescopic assembly is arranged on one side of the second connecting rod, controls the probe to retract according to the abutting condition of the monitoring assembly, monitors an abutting signal of the abutting plate and the inner wall of the alimentary canal and pulls the probe to retract according to the abutting condition, and the situation that the probe continuously enters, and consequently damage to the inner wall of the alimentary canal is increased is avoided; meanwhile, according to the abutting condition of the abutting plate, the rotating direction of the probe is adjusted, the time for the probe to continuously abut against the inner wall of the alimentary canal is shortened, the inner wall of the alimentary canal is protected, and the situation that a patient feels uncomfortable due to the fact that the probe abuts against the inner wall of the alimentary canal for a long time is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of endoscopes, in particular to a traction device for an endoscope. Background Art

[0002] The endoscope traction device controls the bending degree of the endoscope snake bone by adjusting the tension of the traction rope, thereby changing the viewing angle and direction of the endoscope, assisting doctors in precise navigation and operation inside the human body. Using the endoscope traction device, doctors can move the endoscope more flexibly and accurately, adjust the angle and position of the endoscope, and find the lesion site more quickly;

[0003] During the use of the endoscope, the probe is equipped with a camera lens, so the doctor can clearly see the mucosal state of internal organs such as the digestive tract, respiratory tract, and urinary tract, and determine whether there are lesions such as congestion, inflammation, lumps or polyps. The endoscope lens has a built-in image sensor and optical system, which can transmit the image of the human body inside to the external display device in real time for the doctor to observe and diagnose. After judging the situation of the probe end through the camera lens, the control handle adjusts the bending angle of the insertion part. However, if a curved channel is encountered, the insertion angle of the probe end needs to be slowly adjusted, which increases the operation time. Long-term operation causes discomfort to the patient and psychological resistance. If the probe end is inserted too quickly, the probe may touch the inner wall of the digestive tract, increasing the patient's discomfort. For this reason, we propose a traction device for endoscopes. Summary of the invention

[0004] The object of the present invention is to provide a traction device for an endoscope to solve the problem proposed in the above-mentioned background technology that when encountering a curved channel, the insertion angle of the probe end needs to be slowly adjusted, which increases the operation time. Long-term operation causes discomfort to the patient and psychological resistance. If the probe end is inserted too quickly, the probe may touch the inner wall of the digestive tract, increasing the patient's discomfort.

[0005] To achieve the above object, the present invention provides the following technical solution: a traction device for an endoscope, comprising: a mirror rod, a connecting rod 1 is provided at the end of the mirror rod, and the connecting rod 1 is connected to the probe through a connecting rod 2;

[0006] Also includes:

[0007] A monitoring component is arranged at the end of the probe, and the contact condition between the forward end of the probe and the inner wall of the digestive tract is monitored by the monitoring component;

[0008] The telescopic component is arranged on one side of the connecting rod 2. The telescopic component controls the probe to retract according to the pressure applied to the monitoring component, so as to avoid further damage caused by the continuous penetration of the telescopic component.

[0009] A rotating component and a control component, wherein the rotating component is arranged on the other side of the connecting rod 2, and the control component is arranged inside the rotating component. According to the parameters monitored by the monitoring component, the operation of the control component is controlled at the same time, and the rotation of the probe is assisted by the rotating component, so that the probe rotates in the direction away from the pressed direction, thereby reducing damage to the inner wall of the digestive tract.

[0010] The monitoring component includes a pressure plate arranged on the outer wall of the end of the probe, and the pressure plates are connected by connecting pieces.

[0011] Among them, an insertion rod is fixed to the inner wall of the pressure plate, and the insertion rod is inserted into the inside of the socket. An insertion cavity is opened inside the socket, and a spring sheet is arranged inside the insertion cavity. The middle end of the spring sheet presses against the surface of the insertion rod, and openings cooperating with the spring sheet are opened on both sides of the inside of the socket.

[0012] Among them, a fixing plate 1 is fixed on the surface of the insertion rod, a pressing block is fixed on the surface of the fixing plate 1, the pressing block presses on the surface of the gear switch 1, the gear switch 1 is arranged on the surface of the fixing plate 2, and the fixing plate 2 is fixed to the inner wall of the insertion cavity.

[0013] Among them, the telescopic assembly includes a telescopic sleeve 1 arranged between connecting rod 1 and connecting rod 2, a connecting ring 1 is fixed to the inner wall of connecting rod 1 close to the connecting rod 2, and the end face of connecting ring 1 is connected to connecting rod 2.

[0014] Among them, an electromagnet 1 is fixed on the surface of the connecting rod 1, and a metal ring is fixed on the end of the connecting rod 2 close to the connecting rod 1.

[0015] The second limiting plate is fixed on the surface of the metal ring, the first limiting plate is fixed on the surface of the first electromagnet, and the first limiting plate and the second limiting plate are interlaced with each other.

[0016] The rotating assembly includes a telescopic sleeve 2 arranged between the probe and the connecting rod 2, a connecting ring 2 is fixed to the inner wall of the connecting rod 2 close to the probe, and the end face of the connecting ring 2 is connected to the probe.

[0017] Among them, a rotating shaft 1 is fixed on the side of the connecting rod 2 close to the probe, a rotating shaft 2 is arranged inside the rotating shaft 1, a fixing rod is fixed on the surface of the rotating shaft 2, and the end face of the fixing rod is fixed on the surface of the probe.

[0018] Among them, the control component includes a control cavity opened on the inner wall of the rotating shaft 1, gear switches 2 are fixed on both sides of the inner wall of the control cavity, gear switches 3 are fixed at both ends of the inner wall of the control cavity, metal sheets 1 that cooperate with gear switch 2 are fixed on both sides of the surface of the rotating shaft 2, and metal sheets 2 that cooperate with gear switch 3 are fixed at both ends of the surface of the rotating shaft 2.

[0019] The present invention has at least the following beneficial effects:

[0020] By judging the pressure strength between the pressure plate and the inner wall of the digestive tract, monitoring the pressure signal between the pressure plate and the inner wall of the digestive tract, and pulling back the probe according to the pressure situation, it is prevented that the probe continues to enter and increase the damage to the inner wall of the digestive tract, thereby improving the protection effect on the inner wall of the digestive tract. At the same time, according to the pressure condition of the pressure plate, the rotation direction of the probe is adjusted to reduce the time that the probe continuously presses against the inner wall of the digestive tract, thereby protecting the inner wall of the digestive tract and avoiding patient discomfort caused by long-term pressure of the probe against the inner wall of the digestive tract. According to the pressure strength on the surface of the pressure plate, the degree of contact between the pressure plate and the inner wall of the digestive tract is judged, thereby adjusting the rotation angle of the probe to make the probe away from the inner wall of the digestive tract, reducing the contact time with the inner wall of the digestive tract, and improving the protection effect on the inner wall of the digestive tract while ensuring the insertion speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a first stereoscopic schematic diagram of the device structure of the present invention;

[0022] Figure 2 It is a second stereoscopic schematic diagram of the device structure of the present invention;

[0023] Figure 3 It is a three-dimensional schematic diagram of the partial structure of the telescopic sleeve 1 and the rotating shaft 1 of the present invention;

[0024] Figure 4 It is a three-dimensional schematic diagram of the partial structure of the telescopic assembly and the rotating assembly of the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the local structure of the probe and the monitoring component of the present invention;

[0026] Figure 6 It is a three-dimensional cross-sectional view of the local structure of the first gear position switch of the present invention;

[0027] Figure 7 It is a three-dimensional schematic diagram of the partial structure of the second connecting rod, the telescopic assembly and the rotating assembly of the present invention;

[0028] Figure 8 It is a partial structural cross-sectional view of the telescopic assembly and the rotating assembly of the present invention;

[0029] Fig. 9 It is a partial structural cross-sectional view of the metal ring and the rotating shaft 1 of the present invention.

[0030] In the figure: 11, mirror rod; 12, connecting rod one; 13, probe; 14, connecting rod two; 2, monitoring component; 21, pressure plate; 22, connecting piece; 23, plug rod; 24, socket; 25, plug cavity; 26, spring piece; 27, opening; 31, fixing plate one; 32, pressure block; 33, fixing plate two; 34, gear switch one; 4, telescopic component; 41, telescopic sleeve one; 42, electromagnet one; 43, limit plate one; 44, limit plate two; 45, metal ring; 46, connecting ring one; 5, rotating component; 51, telescopic sleeve two; 52, rotating shaft one; 53, rotating shaft two; 54, fixing rod; 55, connecting ring two; 6, control component; 61, control cavity; 62, gear switch two; 63, metal sheet one; 64, gear switch three; 65, metal sheet two. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] See also Figures 1 to 9 The present invention provides a technical solution: a traction device for an endoscope, comprising: a mirror rod 11, a connecting rod 12 is provided at the end of the mirror rod 11, and the connecting rod 12 is connected to the probe 13 through a connecting rod 2 14;

[0034] It also includes: a monitoring component 2, which is arranged at the end of the probe 13, and monitors the contact status between the forward end of the probe 13 and the inner wall of the digestive tract through the monitoring component 2;

[0035] The telescopic component 4 is arranged on one side of the connecting rod 14. The telescopic component 4 controls the probe 13 to retract according to the pressure applied to the monitoring component 2, so as to avoid further damage caused by the continuous penetration of the telescopic component 4.

[0036] The rotating component 5 and the control component 6, the rotating component 5 is arranged on the other side of the connecting rod 14, and the control component 6 is arranged inside the rotating component 5. According to the parameters monitored by the monitoring component 2, the operation of the control component 6 is controlled at the same time, and the rotation of the probe 13 is assisted by the rotating component 5 to adjust the rotation of the probe 13 so that the probe 13 rotates in the direction away from the pressure, thereby reducing the damage to the inner wall of the digestive tract. The pressure of the forward end of the probe 13 by the inner wall of the digestive tract is monitored by the monitoring component 2, and the retraction of the probe 13 is controlled according to the pressure to avoid the probe 13 from continuing to enter and increasing the damage to the inner wall of the digestive tract. At the same time, according to the pressure strength of the surface of the pressure plate 21, the contact degree of the pressure plate 21 with the inner wall of the digestive tract is judged, thereby adjusting the rotation angle of the probe 13 so that the probe 13 is away from the digestive tract.

[0037] The monitoring component 2 includes a pressure plate 21 arranged on the outer wall of the end of the probe 13, and the pressure plates 21 are connected by a connecting piece 22. When the probe 13 moves into the digestive tract, if the pressure plate 21 accidentally touches the inner wall of the digestive tract, the pressure plate 21 is pressed by the inner wall of the digestive tract and moves into the probe 13.

[0038] An insertion rod 23 is fixed to the inner wall of the pressure plate 21, and the insertion rod 23 is inserted into the inside of the socket 24. An insertion cavity 25 is provided inside the socket 24. A spring piece 26 is provided inside the insertion cavity 25, and the middle end of the spring piece 26 presses against the surface of the insertion rod 23. Openings 27 cooperating with the spring piece 26 are provided on both sides of the inside of the socket 24. When the pressure plate 21 moves toward the inside of the probe 13, the pressure plate 21 drives the insertion rod 23 to move synchronously, and the insertion rod 23 retracts into the inside of the insertion cavity 25. The insertion rod 23 presses the spring piece 26, and the spring piece 26 is in a compressed and force-accumulating state. The two ends of the spring piece 26 move inside the opening 27. The squeezing force exerted on the pressure plate 21 is judged according to the moving distance of the insertion rod 23, thereby judging the pressure strength between the pressure plate 21 and the inner wall of the digestive tract, and monitoring the pressure signal between the pressure plate 21 and the inner wall of the digestive tract.

[0039] A fixing plate 31 is fixed to the surface of the insertion rod 23, and a pressing block 32 is fixed to the surface of the fixing plate 31. The pressing block 32 presses against the surface of the gear switch 34. The gear switch 34 is arranged on the surface of the fixing plate 33, and the fixing plate 33 is fixed to the inner wall of the insertion cavity 25. The insertion rod 23 drives the fixing plate 31 and the pressing block 32 to move synchronously, and the pressing block 32 moves on the surface of the gear switch 34. The force of the pressing block 32 pressing against the surface of the gear switch 34 is judged, and the force signal of the pressing against the inner wall of the digestive tract is judged according to the pressing condition of the surface of the gear switch 34.

[0040] The telescopic assembly 4 includes a telescopic sleeve 41 arranged between the connecting rod 12 and the connecting rod 2 14. A connecting ring 46 is fixed to the inner wall of the connecting rod 12 close to the connecting rod 2 14, and the end face of the connecting ring 46 is connected to the connecting rod 2 14. The connecting rod 12 and the connecting rod 2 14 are connected by the telescopic sleeve 41 to prevent mucus on the inner wall of the digestive tract from entering between the electromagnet 1 42 and the metal ring 45, thereby preventing the electromagnet 1 42 from being contaminated. The electromagnet 1 42 and the metal ring 45 are protected. The electromagnet 1 42 and the metal ring 45 are protected again by the connecting ring 46 to isolate them from the instruments passing through the inside of the connecting rod 12 to prevent the instruments from contaminating the electromagnet 1 42 and the metal ring 45, thereby improving the protection effect.

[0041] An electromagnet 42 is fixed on the surface of the connecting rod 12, and a metal ring 45 is fixed to one end of the connecting rod 14 close to the connecting rod 12. When the probe 13 needs to be retracted, the electromagnet 42 is energized, and the electromagnet 42 generates magnetism after being energized. The electromagnet 42 attracts the metal ring 45, and the metal ring 45 is adsorbed on the electromagnet 42. The metal ring 45 drives the connecting rod 14 to move synchronously, thereby pulling the probe 13 to retract, preventing the probe 13 from continuing to extend and press against the inner wall of the digestive tract, thereby improving the protection effect on the inner wall of the digestive tract.

[0042] A limiting plate 44 is fixed on the surface of the metal ring 45, and a limiting plate 43 is fixed on the surface of the electromagnet 42. The limiting plate 43 and the limiting plate 44 are staggered with each other. The limiting plate 43 and the limiting plate 44 are staggered. When the electromagnet 42 and the metal ring 45 approach or move away from each other, the limiting plate 43 and the limiting plate 44 limit the movement of the metal ring 45, so that the movement of the metal ring 45 is more stable, thereby improving the stability of the movement of the metal ring 45.

[0043] Embodiment 2

[0044] The rotating assembly 5 includes a telescopic sleeve 2 51 arranged between the probe 13 and the connecting rod 2 14. A connecting ring 2 55 is fixed to the inner wall of the connecting rod 2 14 close to the probe 13, and the end face of the connecting ring 2 55 is connected to the probe 13. The probe 13 and the connecting rod 2 14 are connected by the telescopic sleeve 2 51 to prevent mucus on the inner wall of the digestive tract from entering between the rotating shaft 1 52 and the rotating shaft 2 53, thereby preventing the rotation of the rotating shaft 1 52 and the rotating shaft 2 53. At the same time, the gear switch 2 62 and the gear switch 3 64 are protected. The gear switch 2 62 and the gear switch 3 64 are protected again by the connecting ring 2 55, and are isolated from the equipment passing through the inside of the connecting rod 2 14 to prevent the equipment from contacting the control assembly 6, thereby improving the protection effect.

[0045] A rotating shaft 1 52 is fixed to the side of the connecting rod 2 14 close to the probe 13, and a rotating shaft 2 53 is arranged inside the rotating shaft 1 52. A fixing rod 54 is fixed to the surface of the rotating shaft 2 53, and the end face of the fixing rod 54 is fixed to the surface of the probe 13. The rotating shaft 1 52 and the rotating shaft 2 53 are movably connected to facilitate the rotation of the probe 13. According to the pressure condition of the pressure plate 21, the rotation direction of the probe 13 is adjusted to reduce the time that the probe 13 continuously presses against the inner wall of the digestive tract, thereby reducing damage to the inner wall of the digestive tract, protecting the inner wall of the digestive tract, and avoiding discomfort to the patient caused by the probe 13 pressing against the inner wall of the digestive tract for a long time.

[0046] The control component 6 includes a control cavity 61 opened on the inner wall of the rotating shaft 1 52, and gear switches 2 62 are fixed on both sides of the inner wall of the control cavity 61, and gear switches 3 64 are fixed at both ends of the inner wall of the control cavity 61. Metal sheets 1 63 that cooperate with the gear switch 2 62 are fixed on both sides of the surface of the rotating shaft 2 53, and metal sheets 2 65 that cooperate with the gear switch 3 64 are fixed at both ends of the surface of the rotating shaft 2 53. By controlling the power supply of the magnets on the surfaces of the gear switches 2 62 and 3 64, the rotation direction of the probe 13 is controlled, which is conducive to the rotation of the probe 13 in the direction away from the inner wall of the digestive tract being pressed.

[0047] When the left side pressure plate 21 is subjected to a greater pressure, the controller controls the right side gear switch 2 62 to operate, and the magnet on the surface of the gear switch 2 62 away from the connecting rod 12 is energized. After the magnet is energized, magnetism is generated. Under the action of the magnet, the magnet on the surface of the gear switch 2 62 away from the connecting rod 12 attracts the metal sheet 1 63, and the magnet and the metal sheet 1 63 are mutually adsorbed, controlling the probe 13 to rotate in the opposite direction, and the probe 13 rotates in the direction away from the pressed direction, thereby reducing the time that the probe 13 continuously presses against the inner wall of the digestive tract. Similarly, when the right side pressure plate 21 is subjected to a greater pressure, the controller controls the left side gear switch 2 62 to operate, and controls the probe 13 to rotate in the opposite direction.

[0048] When the upper end pressure plate 21 is subjected to a greater pressure, the controller controls the gear switch three 64 at the lower end to work, and the magnet on the surface of the gear switch three 64 away from the connecting rod one 12 is energized. After the magnet is energized, magnetism is generated, and the metal sheet two 65 is attracted by the magnet on the surface of the gear switch three 64 away from the connecting rod one 12, and the probe 13 is controlled to rotate in the direction away from the pressed direction, thereby reducing the time that the probe 13 continues to press against the inner wall of the digestive tract, thereby reducing damage to the inner wall of the digestive tract and improving protection of the inner wall of the digestive tract.

[0049] Furthermore, if the pressure force applied to the pressure plates 21 on the left and right sides is relatively large, the magnet on the surface of the gear switch 2 62 that is away from the connecting rod 12 is energized, and the rotation angle of the probe 13 on the left and right sides is relatively large. If the pressure force applied to the pressure plates 21 on the left and right sides is moderate, the magnet on the middle end of the surface of the gear switch 2 62 is energized, and the rotation angle of the probe 13 on the left and right sides is moderate. Similarly, if the pressure force applied to the pressure plates 21 on the upper and lower ends is relatively large, the magnet on the surface of the gear switch 3 64 that is away from the connecting rod 12 is energized, and the rotation angle of the upper and lower ends of the probe 13 is relatively large. Through this design, the degree of contact between the pressure plate 21 and the inner wall of the digestive tract can be judged according to the pressure force applied to the surface of the pressure plate 21, thereby adjusting the rotation angle of the probe 13 so that the probe 13 is away from the digestive tract.

[0050] At the same time, if both groups of symmetrical pressure plates 21 are under pressure, after the controller receives the signal, the two groups of signals are canceled out at the same time, the probe 13 does not rotate, the telescopic component 4 works, drives the probe 13 to retract, and issues a warning to the medical staff, who pay special attention to this part and slowly push the process forward; if all three groups of pressure plates 21 are under pressure, the telescopic component 4 works, drives the probe 13 to retract, and at the same time, the probe 13 rotates in the direction where it is not under pressure; if all four groups of pressure plates 21 are under pressure, after the controller receives the signal, the probe 13 stops rotating, the telescopic component 4 stops working, and there is no need to retract the connecting rod 2 14 through the telescopic component 4. At the same time, a warning is issued to the medical staff, which is beneficial for the medical staff to make manual adjustments and reduce damage to the patient.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A traction device for an endoscope, comprising: A mirror rod (11), wherein a connecting rod 1 (12) is provided at the end of the mirror rod (11), and the connecting rod 1 (12) is connected to the probe (13) via a connecting rod 2 (14); It is characterized by: also including: A monitoring component (2), wherein the monitoring component (2) is arranged at the end of the probe (13), and the contact condition between the forward end of the probe (13) and the inner wall of the digestive tract is monitored by the monitoring component (2); A telescopic component (4), the telescopic component (4) being arranged on one side of the second connecting rod (14), the telescopic component (4) controlling the probe (13) to retract according to the pressure applied to the monitoring component (2), so as to prevent the telescopic component (4) from continuously probing and causing further damage; A rotating component (5) and a control component (6), wherein the rotating component (5) is arranged on the other side of the second connecting rod (14), and the control component (6) is arranged inside the rotating component (5). According to the parameters monitored by the monitoring component (2), the operation of the control component (6) is controlled at the same time, and the rotation of the probe (13) is assisted by the rotating component (5), so that the probe (13) rotates in a direction away from the pressed direction, thereby reducing damage to the inner wall of the digestive tract.

2. The traction device for endoscope according to claim 1, characterized in that: The monitoring component (2) comprises a pressure plate (21) arranged on the outer wall of the end of the probe (13), and the pressure plates (21) are connected via a connecting piece (22).

3. The traction device for endoscope according to claim 2, characterized in that: An insertion rod (23) is fixed to the inner wall of the pressure plate (21), and the insertion rod (23) is inserted into the interior of the socket (24). An insertion cavity (25) is provided inside the socket (24), and a spring sheet (26) is provided inside the insertion cavity (25), and the middle end of the spring sheet (26) is pressed against the surface of the insertion rod (23). Openings (27) cooperating with the spring sheet (26) are provided on both sides of the interior of the socket (24).

4. The traction device for endoscope according to claim 3, characterized in that: A fixing plate 1 (31) is fixed on the surface of the insertion rod (23), a pressing block (32) is fixed on the surface of the fixing plate 1 (31), the pressing block (32) presses on the surface of the gear switch 1 (34), the gear switch 1 (34) is arranged on the surface of the fixing plate 2 (33), and the fixing plate 2 (33) is fixed on the inner wall of the insertion cavity (25).

5. The traction device for endoscope according to claim 1, characterized in that: The telescopic assembly (4) comprises a telescopic sleeve (41) arranged between a connecting rod (12) and a connecting rod (14); a connecting ring (46) is fixed to the inner wall of the connecting rod (12) on a side close to the connecting rod (14); and an end surface of the connecting ring (46) is connected to the connecting rod (14).

6. The traction device for endoscope according to claim 1, characterized in that: An electromagnet 1 (42) is fixed on the surface of the connecting rod 1 (12), and a metal ring (45) is fixed on one end of the connecting rod 2 (14) close to the connecting rod 1 (12).

7. The traction device for endoscope according to claim 6, characterized in that: A second limiting plate (44) is fixed on the surface of the metal ring (45), and a first limiting plate (43) is fixed on the surface of the first electromagnet (42); the first limiting plate (43) and the second limiting plate (44) are interlaced with each other.

8. The traction device for endoscope according to claim 1, characterized in that: The rotating assembly (5) comprises a second telescopic sleeve (51) arranged between the probe (13) and the second connecting rod (14); a second connecting ring (55) is fixed to the inner wall of the second connecting rod (14) on a side close to the probe (13), and the end surface of the second connecting ring (55) is connected to the probe (13).

9. The traction device for endoscope according to claim 1, characterized in that: A rotating shaft 1 (52) is fixed to the side of the connecting rod 2 (14) close to the probe (13), a rotating shaft 2 (53) is arranged inside the rotating shaft 1 (52), a fixing rod (54) is fixed to the surface of the rotating shaft 2 (53), and the end face of the fixing rod (54) is fixed to the surface of the probe (13).

10. The traction device for endoscope according to claim 9, characterized in that: The control assembly (6) comprises a control cavity (61) opened on the inner wall of the first rotating shaft (52), a second gear switch (62) being fixed on both sides of the inner wall of the control cavity (61), a third gear switch (64) being fixed on both ends of the inner wall of the control cavity (61), a first metal sheet (63) matching with the second gear switch (62) being fixed on both sides of the surface of the second rotating shaft (53), and a second metal sheet (65) matching with the third gear switch (64) being fixed on both ends of the surface of the second rotating shaft (53).

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