A driving structure of a traction rope, an operating handle and an endoscope

Abstract

The present invention discloses a driving structure, an operating handle and an endoscope of a traction rope, and relates to the technical field of medical devices. The driving structure includes a fixed part and a traction wheel, wherein the fixed part is used to be connected to the proximal end of the traction rope, and the traction wheel is rotatably arranged relative to the fixed part. The traction wheel has a guide part, and the guide part is used to wind the traction rope, and the winding direction and the winding direction of the traction rope in the traction wheel are opposite. The guide part winds the traction rope. The guide part can rotate at the same angle with the traction wheel, and the traction ropes located on both sides of the guide part are tightened or relaxed, and the tightening or relaxing distance of the traction rope as a whole is increased. The insertion part of the endoscope rotates to the same position. Compared with the prior art, this arrangement can reduce the amplitude of the medical staff toggling the adjustment control. The small toggling amplitude is more suitable for the medical staff to operate for a long time, reducing the discomfort caused by the medical staff operating the operating handle, and improving the use effect and application prospects of the endoscope.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a driving structure of a traction rope, an operating handle and an endoscope. Background Art

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

[0003] In the related art, a traction wheel is provided in the operating handle. Medical staff use the adjustment control of the operating handle to drive the traction wheel, and the traction wheel drives the insertion part through the traction rope to achieve bending action. When diagnosing and treating lesions in the patient's body, medical staff need to turn the adjustment control in a large range so that the insertion part can be rotated to the required position. Multiple continuous turning will cause finger fatigue of medical staff, which is not conducive to long-term continuous medical diagnosis and treatment, and affects the use effect and application prospects of the endoscope. Summary of the invention

[0004] In view of the shortcomings of the related technologies mentioned above, the present application provides a driving structure of a traction rope, an operating handle and an endoscope to solve the above technical problems.

[0005] The present application provides a driving structure of a traction rope, comprising a fixing portion and a traction wheel, wherein the fixing portion is used to be connected to the proximal end of the traction rope, the traction wheel is rotatably arranged relative to the fixing portion, and the traction wheel has a guide portion, the guide portion is used to wind the traction rope and make the winding direction and the winding direction of the traction rope in the traction wheel opposite, wherein when the traction wheel rotates, the guide portion and the fixing portion move away from or approach each other.

[0006] In one embodiment of the present application, the distal end and the proximal end of the traction rope are located on the same side of the guide portion.

[0007] In one embodiment of the present application, the traction wheel also includes a reversing portion, the guide portion is connected to the reversing portion, the reversing portion is used to wind the traction rope wound by the guide portion, and the proximal end and the distal end of the traction rope are respectively arranged on both sides of the traction wheel.

[0008] In one embodiment of the present application, the traction wheel is provided with a rotation groove, the rotation groove extends around the rotation axis of the traction wheel, the guide portion is connected to the groove wall forming the rotation groove, and the fixing portion is slidably fitted in the rotation groove.

[0009] In one embodiment of the present application, a through hole is provided on the groove wall forming the rotary groove, the through hole is connected to the rotary groove, and the through hole is used to pass the traction rope;

[0010] In one embodiment of the present application, a guide groove is provided on the outer peripheral surface of the reversing portion, and the guide groove is used to guide the traction rope so that the proximal end and the distal end of the traction rope are respectively arranged on both sides of the traction wheel.

[0011] In one embodiment of the present application, the outer diameter of the fixing portion is smaller than the width of the rotating groove.

[0012] In one embodiment of the present application, a limiting portion is disposed between the guiding portion and the fixing portion, and the limiting portion is used to limit the rotation angle of the traction wheel.

[0013] In one embodiment of the present application, the guide portion is rotatably disposed relative to the traction wheel.

[0014] In one embodiment of the present application, the guide portion is provided with a receiving groove, which is distributed along the circumference of the guide portion, and the receiving groove is used for winding the traction rope.

[0015] In one embodiment of the present application, the guide portion includes a first sub-guide portion and a second sub-guide portion, and the first sub-guide portion and the second sub-guide portion are rotatably arranged relative to the fixed portion. The fixed portion is used to be connected to the proximal ends of the first traction rope and the second traction rope, the first sub-guide portion is used to wind the first traction rope, and the second sub-guide portion is used to wind the second traction rope.

[0016] In order to achieve the above-mentioned purpose and other related purposes, the present application provides an operating handle, including the aforementioned driving structure and an adjustment control unit, wherein the adjustment control unit is connected to the traction wheel.

[0017] To achieve the above-mentioned purpose and other related purposes, the present application provides an endoscope, including the operating handle as mentioned above.

[0018] The technical solution adopted by the present invention can achieve the following beneficial effects: the fixed part is connected to the proximal end of the traction rope, and the guide part is wound around the traction rope. The guide part can rotate at the same angle with the traction wheel, and the traction ropes on both sides of the guide part will be tightened or relaxed at the same time. At the same rotation angle, the overall tightening or relaxing distance of the traction rope increases. The insertion part of the endoscope rotates to the same position. Compared with the prior art, this setting can reduce the amplitude of the medical staff to turn the adjustment control. The small toggling amplitude is more suitable for medical staff to operate for a long time, reducing the discomfort caused by the medical staff operating the operating handle, and improving the use effect and application prospects of the endoscope. In addition, the fixed end connected to the traction rope is stable and does not rotate relative to the outer shell of the operating handle, so the traction rope can rotate more stably and is not easily shaken due to external force or load changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0020] Figure 1 is a schematic structural diagram of a driving structure shown in an exemplary embodiment of the present application;

[0021] Figure 2 is a structural schematic diagram of another driving structure shown in an exemplary embodiment of the present application;

[0022] Figure 3 is a schematic structural diagram of a driving structure from another perspective shown in an exemplary embodiment of the present application;

[0023] Figure 4 is along Figure 3 The cross-sectional view of line AA in the figure;

[0024] Figure 5 is a structural schematic diagram of another driving structure shown in an exemplary embodiment of the present application;

[0025] Figure 6 is a structural schematic diagram of yet another driving structure shown in an exemplary embodiment of the present application;

[0026] Figure 7 It is a schematic diagram of the structure of an endoscope shown in an exemplary embodiment of the present application.

[0027] In the figure: 1, endoscope; 100, driving structure; 110, fixing part; 120, traction wheel; 121, guide part; 122, reversing part; 123, rotation groove; 124, through hole; 125, guide groove; 126, accommodating groove; 127, limiting part; 131, first sub-guide part; 132, second sub-guide part; 133, first sub-reversing part; 134, second sub-reversing part; 140, traction rope; 200, operating handle; 300, adjustment control. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0029] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0030] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0031] When diagnosing and treating lesions in the patient's body, an endoscope is usually required. The endoscope includes an operating handle and an insertion portion. During specific operation, by controlling the operating handle, the insertion portion at the front end of the insertion portion can be pulled by a traction rope to achieve a bending action, thereby changing the direction of the front end of the insertion portion.

[0032] In the related art, a traction wheel is provided in the operating handle, and the medical staff drives the traction wheel by using the adjustment control of the operating handle, and the traction wheel drives the insertion part through the traction rope to achieve the bending action. When the medical staff holds the endoscope, it is difficult to turn the adjustment control by a large margin, which greatly limits the limited bending range of the insertion part, thereby affecting the use effect and application prospects of the endoscope.

[0033] This embodiment provides a driving structure 100 of a traction rope 140, see Figure 1 The following is referred to as the driving structure 100 . The driving structure 100 may include a fixing portion 110 and a traction wheel 120 . The traction wheel 120 is rotatably arranged relative to the fixing portion 110 .

[0034] See also Figure 1 The fixing portion 110 may be formed on the outer shell or other structures of the operating portion handle, and the fixing portion 110 may be a columnar structure or a sheet structure, etc. The present embodiment does not limit the specific position and shape of the fixing portion 110. The fixing portion 110 is used to connect with the proximal end of the traction rope 140. The fixing portion 110 is provided with a connecting hole (not shown), and the shape and size of the connecting hole are generally determined according to the diameter and shape of the proximal end of the traction rope 140. The traction rope 140 may pass through and connect with the connecting hole, and the traction rope 140 may be interference fit with the connecting hole so that the two can be stably connected.

[0035] In the embodiment of the present application, the connection hole may pass through the fixing portion 110 or may not pass through the fixing portion 110 , and no specific limitation is made herein.

[0036] In some other cases, the hole wall forming the connection hole and the traction rope 140 can be glued, connected with fasteners, etc., which is not limited in this embodiment.

[0037] Please continue reading Figure 1 The traction wheel 120 can be a wheel-shaped structure, etc., which is not limited in this embodiment. The traction wheel 120 has a rotating shaft, which can be installed on the housing of the operating part handle, and the rotating shaft can be rotatably arranged relative to the housing to realize the traction wheel 120 being rotatably arranged relative to the fixing part 110. The traction wheel 120 has a guide part 121, which can be a guide hole or a guide column or other structure, and the guide part 121 can rotate together with the traction wheel 120.

[0038] The traction wheel 120 serves as one of the bearing bases of the traction rope 140. When the traction rope 140 and the guide portion 121 are assembled, the traction rope 140 is circumferentially sleeved on the traction wheel 120, that is, part of the traction rope 140 is wound around the traction wheel 120. In this way, when the traction wheel 120 is rotated, the insertion portion of the endoscope can be pulled by winding the traction rope 140 to achieve a bending action, thereby changing the front end direction of the insertion portion of the endoscope to adjust the shooting direction of the endoscope camera or the working area of ​​the medical device.

[0039] Please continue reading Figure 1 The guide portion 121 is used to wind the traction rope 140, and the winding direction and the winding direction of the traction rope 140 in the traction wheel 120 are opposite. The traction rope 140 can rotate around at least part of the guide portion 121, that is, the traction rope 140 can rotate around the guide portion 121 by a certain angle. Among them, the winding direction can be the extension direction of the traction rope 140 when it is wound into the guide portion 121, and the winding direction can be the extension direction of the traction rope 140 when it is wound out of the guide portion 121. It can be understood that the winding direction and the winding direction are not anti-parallel, and there can be a certain angle between the two. This setting can enable the guide portion 121 to change the extension direction of the traction rope 140, and the winding direction and the winding direction can be adjusted according to actual needs to adapt to different usage requirements and operating environments.

[0040] When the traction wheel 120 rotates, the guide part 121 and the fixed part 110 move away from or close to each other. Exemplarily, the guide part 121 can be arranged on the outer periphery of the traction wheel 120, and the fixed part 110 is located on one side of the traction wheel 120. During the rotation of the traction wheel 120, the guide part 121 and the fixed part 110 move away from or close to each other. During this period, the traction wheel 120 drives the guide part 121 to rotate together to pull the traction rope 140. The guide part 121 can rotate at the same angle with the traction wheel 120, and the traction ropes 140 located on both sides of the guide part 121 are tightened or relaxed, and the overall tightening or relaxing distance of the traction rope 140 increases. The insertion part of the endoscope rotates to the same position. Compared with the prior art, this setting can reduce the amplitude of the medical staff toggling the adjustment control. The small toggling amplitude is more suitable for medical staff to operate for a long time, reducing the discomfort caused by the medical staff operating the operating handle, and improving the use effect and application prospects of the endoscope.

[0041] Furthermore, the fixing portion 110 connected to the traction rope 140 is stable and does not rotate relative to the housing of the operating handle, so that the traction rope 140 can rotate more stably and is not easily shaken by external force or load changes.

[0042] In one embodiment, please refer to Figure 1 , the distal end and the proximal end of the traction rope 140 are located on the same side of the guide portion 121. During the rotation of the traction wheel 120, the distal end of the traction rope 140 extends in the winding-out direction, and the proximal end of the traction rope 140 extends in the winding-in direction. The guide portion 121 increases the telescopic stroke of the traction rope 140 while reducing the number of other components, thereby reducing the maintenance cost of the driving structure 100.

[0043] In another embodiment, see Figure 2 as well as Figure 3 The traction wheel 120 may further include a reversing portion 122, the guide portion 121 is connected to the reversing portion 122, and the reversing portion 122 is used to wind the traction rope 140 wound by the guide portion 121, and the proximal end and the distal end of the traction rope 140 are arranged on both sides of the traction wheel 120. The guide portion 121 can guide the traction rope 140 to be wound according to a predetermined path to ensure its stable operation in the system. The reversing portion 122, which is closely connected to the guide portion 121, ensures that the winding direction and the winding direction of the traction rope 140 are opposite. The reversing portion 122 can not only smoothly receive the traction rope 140 wound by the guide portion 121, but also realize the uniform force distribution of the proximal end and the distal end of the traction rope 140 on both sides of the traction wheel 120. Furthermore, the reversing portion 122 can enable the distal end of the traction rope 140 to extend to a wider range, thereby improving the implementation effect of the driving structure 100 and facilitating the operation of the handle 200 for routing. This arrangement not only ensures the continuity and stability of the traction rope 140 during the winding process, but also effectively avoids the tension imbalance problem caused by the uneven distribution of the traction rope 140.

[0044] Specifically, if Figure 2 As shown, the traction wheel 120 is provided with a rotation groove 123, and the rotation groove 123 extends around the rotation axis of the traction wheel 120. The guide portion 121 is connected to the groove wall forming the rotation groove 123, and the fixed portion 110 is slidably fitted in the rotation groove 123. The shape and size of the fixed portion 110 correspond to the rotation groove 123. For example, the guide portion 121 can be connected to the groove wall, and during the rotation of the traction wheel 120, the fixed portion 110 and the guide portion 121 are close to or away from each other. Further, the guide portion 121 can be connected to the end of the rotation groove 123, and this setting can increase the distance between the fixed portion 110 and the guide portion 121, ensure that the traction wheel 120 has a sufficient rotation range, and improve the operating effect of the operating handle 200. In addition, the fixed portion 110 is arranged to rotate along the rotation groove 123, so that the activity path between the guide portion 121 and the fixed portion 110 is clearer, and the instability of the rotation of the two is avoided, and the rotation effect of the fixed portion 110 is improved.

[0045] It is understandable that during the rotation of the traction wheel 120, the fixing portion 110 and the guide portion 121 move closer to or farther from each other. Figure 4 and Figure 5 As shown, Figure 4 A cross-sectional view showing the drive structure 100 in an initial position, Figure 5 The cross-sectional view of the driving structure 100 after rotation is shown, and the reversing portion 122 around which the traction rope 140 is wound will also move closer to or farther from the fixing portion 110, and the reversing portion 122 can tighten or loosen the traction rope 140, and the reversing portion 122 can further increase the telescopic range of the traction rope 140. The telescopic stroke of the traction rope 140 is larger, and the operating effect of the operating handle on the traction rope 140 can also be improved, that is, when the insertion portion is driven to rotate to the same angle, the toggle amplitude of the operating handle can be further reduced compared with the prior art, thereby increasing the use range of the endoscope.

[0046] In one embodiment, see Figure 3 as well as Figure 4 The groove wall forming the rotary groove 123 is provided with a through hole 124, the through hole 124 is connected to the rotary groove 123, and the through hole 124 is used to pass the traction rope 140. The provision of the through hole 124 can ensure that the traction rope 140 can have a clear extension direction, and avoid the groove wall affecting the smooth extension of the traction rope 140. In addition, the groove wall can be composed of a reversing portion 122, that is, the through hole 124 is opened in the reversing portion 122, and the through hole 124 can lead the traction rope 140 to the peripheral side of the reversing portion 122, so as to ensure that the traction rope 140 can be guided by the reversing portion 122, so that the proximal end and the distal end of the traction rope 140 are respectively arranged on both sides of the traction wheel 120.

[0047] In some other cases, a connecting groove is opened on the surface of the reversing part 122, and the connecting groove connects the rotating groove 123 and the outer peripheral side of the reversing part 122 to ensure that the traction rope 140 can smoothly extend out of the groove wall, which will not be elaborated here.

[0048] Also, please continue reading Figure 3 The outer circumferential surface of the reversing portion 122 is provided with a guide groove 125, and the guide groove 125 can be adapted to the size and shape of the traction rope 140. The guide groove 125 is used to guide the traction rope 140 so that the proximal end and the distal end of the traction rope 140 are respectively arranged on both sides of the traction wheel 120. The guide groove 125 can accommodate at least a part of the traction rope 140, and the guide groove 125 can guide the traction rope 140 and make the traction rope 140 have a clear winding path, so as to prevent the traction rope 140 from being separated from the reversing portion 122, and improve the driving effect of the traction wheel 120. In addition, the guide groove 125 can be connected to the through hole 124 to ensure that the traction rope 140 can extend from the through hole 124 to the guide groove 125 and be guided by the guide groove 125.

[0049] Preferably, please refer to Figure 2 In order to ensure that the fixing part 110 can slide in the rotating groove 123, the outer diameter of the fixing part 110 of this embodiment is smaller than the width of the rotating groove 123. When the outer diameter of the fixing part 110 is greater than or equal to the width of the rotating groove 123, the fixing part 110 cannot extend into the rotating groove 123 or slide relatively. The fixing part 110 with a smaller outer diameter can be loosely matched with the rotating groove 123 to ensure the effect of the fixing part 110 sliding relatively in the rotating groove 123.

[0050] To protect the insertion portion of the endoscope. In the embodiments of this application, please refer to Figure 2 A limiting portion 127 is provided between the guide portion 121 and the fixed portion 110, and the limiting portion 127 is used to limit the rotation angle of the traction wheel 120. For example, the limiting portion 127 can be provided on the groove wall forming the rotation groove 123. When the traction wheel 120 rotates to a certain position relative to the fixed portion 110, the limiting portion 127 abuts against the fixed portion 110, thereby limiting the rotation angle of the traction wheel 120. This arrangement can prevent the traction wheel 120 from rotating excessively, and ensure that the insertion portion of the endoscope can work normally. In addition, the limiting portion 127 can also abut against the traction rope 140 to push the traction rope 140 away from the groove wall forming the rotation groove 123, reduce the contact area between the traction rope 140 and the traction wheel 120, avoid friction between the traction rope 140 and the groove wall, improve the stability of the endoscope, and reduce the manufacturing cost.

[0051] In one embodiment, the traction rope 140 will generate sliding friction with the guide portion 121 during the winding process. This friction will not only increase the wear of the traction rope 140 and reduce its service life, but also reduce the efficiency of the entire traction system due to the consumption of friction. Figure 2 In this embodiment, the guide part 121 is rotatably arranged relative to the traction wheel 120. This arrangement can change the friction between the traction rope 140 and the guide part 121 from sliding friction to rolling friction, which reduces the wear of the traction rope 140 on the guide part 121 and increases the service life of the guide part 121. The introduction of rotational friction allows the traction rope 140 to slide more smoothly during the winding process of the guide part 121, reducing the energy loss caused by friction resistance. Under the same external force, the traction rope 140 can transmit more power and achieve a longer sliding distance, thereby improving the efficiency and performance of the entire traction system.

[0052] In another embodiment, see Figure 3 The guide portion 121 is provided with a receiving groove 126, and the receiving groove 126 cooperates with the traction rope 140. The receiving groove 126 is distributed along the circumference of the guide portion 121, and the receiving groove 126 is used to wind the traction rope 140. The receiving groove 126 can accommodate at least a part of the traction rope 140, and the receiving groove 126 can make the traction rope 140 have a clear winding path, prevent the traction rope 140 from being separated from the guide portion 121, and improve the driving effect of the traction wheel 120.

[0053] In order to allow the insertion portion to be bent in at least two directions, the endoscope is driven by at least two traction ropes 140, that is, one traction rope 140 pulls one side of the insertion portion, and the other traction rope 140 pulls the other side of the insertion portion. Figure 4 as well as Figure 6 The guide portion 121 may include a first sub-guide portion 131 and a second sub-guide portion 132. The structures of the first sub-guide portion 131 and the second sub-guide portion 132 may be the same. The first sub-guide portion 131 and the second sub-guide portion 132 are rotatably arranged relative to the fixing portion 110. The fixing portion 110 is used to connect with the proximal ends of the first traction rope and the second traction rope. The first sub-guide portion 131 is used to wind the first traction rope, and the second sub-guide portion 132 is used to wind the second traction rope.

[0054] Please continue reading Figure 4 as well as Figure 6The first sub-guide portion 131 and the second sub-guide portion 132 form a double-guide structure, and the two are rotatably arranged relative to the fixed portion 110. When the first traction rope is pulled, it will be wound along the first sub-guide portion 131, and through this winding method, the pulling force will be transferred to one side of the insertion portion, causing it to bend. Similarly, when the second traction rope is pulled, it will be wound along the second sub-guide portion 132, and the pulling force will be transferred to the other side of the insertion portion to achieve bending in another direction. This setting not only improves the flexibility and accuracy of the insertion portion of the endoscope, but also ensures the stability and reliability of the traction rope 140 during the winding process. It enables the endoscope to be more adaptable to various complex inspection and treatment environments, providing medical staff with a more convenient and efficient tool.

[0055] There may be multiple first traction ropes and multiple second traction ropes, so as to enhance the overall strength of the traction rope 140 and prevent the traction rope 140 from being broken after long-term use.

[0056] Please continue reading Figure 4 as well as Figure 6 When the traction wheel 120 rotates in the first direction, the first sub-guide portion 131 and the fixed portion 110 are close to each other, and the second sub-guide portion 132 and the fixed portion 110 are far away from each other. When the traction wheel 120 rotates in the second direction, the first sub-guide portion 131 and the fixed portion 110 are far away from each other, and the second sub-guide portion 132 and the fixed portion 110 are close to each other. The first direction and the second direction are opposite. In addition, the through hole 124 is formed between the first sub-guide portion 131 and the second sub-guide portion 132. This setting can complete the driving of two traction ropes 140 through one traction wheel 120 to control the insertion portion to be able to be bent in at least two directions.

[0057] It is understandable that the first sub-guide portion 131 and the second sub-guide portion 132 can be rotatably arranged relative to the traction wheel 120, and / or, the first sub-guide portion 131 and the second sub-guide portion 132 both have a receiving groove 126, and the aforementioned related settings regarding the guide portion 121 can be arranged in the first sub-guide portion 131 and the second sub-guide portion 132 to improve the driving effect of the traction wheel 120.

[0058] In one embodiment, please refer to Figure 4 as well as Figure 6The reversing portion 122 may also include a first sub-reversing portion 133 and a second sub-reversing portion 134. The first sub-reversing portion 133 is provided corresponding to the first sub-guide portion 131, and is used to wind the first traction rope wound out of the first sub-guide portion 131, and the proximal end and the distal end of the first traction rope are respectively arranged on both sides of the first sub-guide portion 131. The second sub-reversing portion 134 is provided corresponding to the second sub-guide portion 132, and is used to wind the second traction rope wound out of the second sub-guide portion 132, and the proximal end and the distal end of the second traction rope are respectively arranged on both sides of the second sub-guide portion 132.

[0059] To achieve the above and other related purposes, please refer to Figure 7 The present application provides an operating handle 200, which can adjust the control unit 300 and the driving structure 100 of the traction rope 140 mentioned in any of the above schemes, so that the operating handle 200 has the beneficial effects of any of the above schemes, which will not be repeated here. Specifically, the adjustment unit 300 is connected to the traction wheel 120. The adjustment unit 300 can be a device such as an adjustment unit or a motor. The medical staff can operate the adjustment unit 300, and the adjustment unit 300 is used to drive the traction wheel 120 to rotate so that the guide part 121 and the fixed part 110 are separated from or approached from each other.

[0060] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 1, please continue to refer to Figure 7 The endoscope 1 includes the aforementioned operating handle 200, so that the endoscope 1 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here. The endoscope 1 of the embodiment of the present application can be a nephroscope, a bronchoscope, an esophagoscope, a gastroscope, a colonoscope, an otoscope, a rhinoscope, a stomatoscope, a laryngoscope, a colposcope, a laparoscope, an arthroscope, etc.

[0061] The present embodiment provides a driving structure 100 of a traction rope 140, an operating handle 200 and an endoscope 1, wherein the fixing portion 110 is connected to the proximal end of the traction rope 140, and the guide portion 121 is wound around the traction rope 140. The guide portion 121 can rotate at the same angle with the traction wheel 120, and the traction ropes 140 on both sides of the guide portion 121 are tightened or loosened, and the tightening or loosening distance of the traction rope 140 as a whole is increased. The insertion portion of the endoscope 1 rotates to the same position. Compared with the prior art, this setting can reduce the amplitude of the medical staff toggling the adjustment control 300. The small amplitude is more suitable for the medical staff to operate for a long time, reduce the discomfort caused by the medical staff operating the operating handle 200, and improve the use effect and application prospect of the endoscope 1. In addition, the fixed end connected to the traction rope 140 is stable and does not rotate relative to the shell of the operating handle 200, so the traction rope 140 can rotate more stably and is not easy to shake due to changes in external force or load.

[0062] It should be noted that, in this article, the terms "include", "comprises" or any other variations 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. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0063] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0064] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A driving structure of a traction rope, characterized in that: include: A fixing portion, the fixing portion being used to be connected to the proximal end of the traction rope; as well as, A traction wheel, wherein the traction wheel is rotatably arranged relative to the fixed part, the traction wheel has a guide part and a reversing part, the guide part is connected to the reversing part, the guide part is used to wind the traction rope, and make the winding direction of the traction rope in the guide part and the winding direction of the traction rope opposite, the reversing part is used to wind the traction rope wound by the guide part, and make the proximal end and the distal end of the traction rope be arranged on both sides of the traction wheel respectively, the traction wheel is provided with a rotation groove, the rotation groove extends around the rotating shaft of the traction wheel, the guide part is connected to the groove wall forming the rotation groove, and the fixed part is slidably fitted in the rotation groove; Wherein, when the traction wheel rotates, the guide portion and the fixed portion move away from or closer to each other, and at the same time, the reversing portion and the fixed portion move away from or closer to each other.

2. The driving structure according to claim 1, characterized in that: A through hole is provided on the groove wall forming the rotary groove, the through hole is connected to the rotary groove, and the through hole is used to pass the traction rope; And / or, a guide groove is formed on the outer peripheral surface of the reversing portion, and the guide groove is used to guide the traction rope so that the proximal end and the distal end of the traction rope are respectively arranged on both sides of the traction wheel; And / or, the outer diameter of the fixing portion is smaller than the width of the rotation groove.

3. The driving structure according to claim 1, characterized in that: A limiting portion is arranged between the guiding portion and the fixing portion, and the limiting portion is used to limit the rotation angle of the traction wheel.

4. The driving structure according to claim 1, characterized in that: The guide portion is rotatably arranged relative to the traction wheel; And / or, the guide portion is provided with a receiving groove, the receiving groove is distributed along the circumference of the guide portion, and the receiving groove is used for winding the traction rope.

5. The driving structure according to any one of claims 1 to 4, characterized in that: The guide portion includes a first sub-guide portion and a second sub-guide portion, and the first sub-guide portion and the second sub-guide portion are rotatably arranged relative to the fixed portion. The fixed portion is used to be connected to the proximal ends of the first traction rope and the second traction rope, the first sub-guide portion is used to wind the first traction rope, and the second sub-guide portion is used to wind the second traction rope.

6. An operating handle, characterized in that: It comprises the driving structure and adjustment control unit as described in any one of claims 1 to 5, wherein the adjustment control unit is connected to the traction wheel.

7. An endoscope, characterized in that: Comprising the operating handle as claimed in claim 6.

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