Driving structure of traction rope, operating handle and endoscope

Abstract

The invention discloses a driving structure of a traction rope, an operating handle and an endoscope, and relates to the technical field of medical instruments, the driving structure comprises a guide part and a traction wheel, the guide part is used for winding the traction rope and enabling the winding-in direction and the winding-out direction of the traction rope in the guide part to be opposite, and the traction wheel is rotationally arranged relative to the guide part. The traction wheel is provided with a connecting part which is used for being connected with the near end of the traction rope. The connecting part can rotate by the same angle along with the traction wheel, the connecting part rotates relative to the guide part, and the traction ropes located on the two sides of the guide part are tensioned or loosened. And when the traction wheels rotate at the same position, the overall tensioning or loosening distance of the traction rope is longer. Compared with the prior art, the endoscope has the advantages that the range of shifting the regulation and control part by medical staff can be reduced, the small shifting range is more suitable for long-time operation of the medical staff, discomfort caused by operation of the operating handle by the medical staff is reduced, and the using effect and the application prospect of the endoscope are improved.

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 part. During specific operation, by controlling the operating handle, the active bending section at the front end of the insertion part can be pulled by a traction rope to achieve bending action, thereby changing the direction of the front end of the insertion part.

[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 guide portion and a traction wheel, wherein the guide portion is used to wind the traction rope, and the winding direction and the winding direction of the traction rope in the guide portion are opposite, and the traction wheel is rotatably arranged relative to the guide portion, and the traction wheel has a connecting portion, and the connecting portion is used to be connected to the proximal end of the traction rope, wherein when the traction wheel rotates, the connecting portion and the guide portion move away from or approach each other.

[0006] In one embodiment, the angle between the extension direction and the winding direction of the distal end of the traction rope is less than 90 degrees.

[0007] In one embodiment, the connecting portion is provided with a connecting hole, and the connecting hole is used for passing and connecting the traction rope.

[0008] In one embodiment, the traction wheel also includes a reversing portion, the reversing portion and the connecting portion are spaced apart, the guide portion is slidably arranged relative to the reversing portion, the reversing portion is used to wind the traction rope wound out of the guide portion, and the angle between the extension direction of the far end of the traction rope and the winding direction is greater than or equal to 90 degrees.

[0009] In one embodiment, the reversing portion is arranged around the connecting portion to form a rotary groove, the rotary groove extends around the rotating shaft of the traction wheel, the rotary groove has a first end and a second end far away from each other, the connecting portion is located between the first end and the second end, the guide portion is slidably fitted in the rotary groove, and slides toward the first end or the second end.

[0010] In one embodiment, the connecting portion is disposed on a groove wall forming the rotary groove, and during the rotation of the traction wheel, the guiding portion abuts against the groove wall where the connecting portion is located, and slides along the groove wall toward the first end or the second end.

[0011] In one embodiment, the outer diameter of the guide portion is less than or equal to the width of the spiral groove, and the guide portion and / or the groove wall forming the spiral groove are provided with a groove, and the groove is used to accommodate the traction rope.

[0012] In one embodiment, the reversing portion has a reversing end, the reversing end is located at the first end, and a reversing wheel is provided at the reversing end, and the reversing wheel is used to wind the traction rope wound out of the guide portion.

[0013] In one embodiment, the distance between the connecting portion and the second end is less than or equal to the distance between the connecting portion and the first end.

[0014] In one embodiment, the driving structure is further provided with a limiting portion, which is located in the movable path of the traction wheel and is used to limit the rotation angle of the traction wheel.

[0015] In one embodiment, the guide portion includes a first sub-guide portion and a second sub-guide portion, the connecting portion is used to connect 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 connecting part is connected to the proximal end of the traction rope, and the guide part is wound around the traction rope. The connecting part can rotate at the same angle with the traction wheel, and the connecting part rotates relative to the guide part, and the traction ropes on both sides of the guide part are tightened or relaxed. When the traction wheel rotates to the same position, the overall tightening or relaxing distance of the traction rope is longer. 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 the medical staff to operate for a long time, reduce the discomfort caused by the medical staff operating the operating handle, and improve the use effect and application prospect of the endoscope. In addition, the fixed end of the traction rope is stable and does not rotate relative to the shell of the operating handle, so the traction rope can rotate more stably and is not easy to shake due to external force or load changes. During this period, one end of the traction rope is connected to the rotatable connecting part. The configuration is more flexible and can adapt to more complex lifting and moving needs. 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; Figure 2 is a structural schematic diagram of another driving structure shown in an exemplary embodiment of the present application; Figure 3 is a schematic structural diagram of a driving structure from another perspective shown in an exemplary embodiment of the present application; Figure 4 is along Figure 3 The cross-sectional view of line AA in the figure; Figure 5 is a structural schematic diagram showing another driving structure according to an exemplary embodiment of the present application; Figure 6 is a structural schematic diagram of another driving structure shown in an exemplary embodiment of the present application; Figure 7 It is a schematic diagram of the structure of an endoscope shown in an exemplary embodiment of the present application.

[0021] In the figure: 1, endoscope; 100, driving structure; 110, guide part; 120, traction wheel; 121, connecting part; 122, reversing part; 123, rotary groove; 1231, first end; 1232, second end; 124, reversing end; 125, reversing wheel; 126, limiting part; 127, groove; 128, through hole; 131, first sub-guide part; 132, second sub-guide part; 133, first sub-reversing part; 134, second sub-reversing part; 200, operating handle; 300, adjustment control. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] 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".

[0025] 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.

[0026] 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.

[0027] This embodiment provides a driving structure 100 of a traction rope, see Figure 1 The following is referred to as the driving structure 100 . The driving structure 100 may include a guide portion 110 and a traction wheel 120 . The traction wheel 120 is rotatably arranged relative to the guide portion 110 .

[0028] Please continue reading Figure 1The guide portion 110 can be formed on the shell or other structures of the operating portion handle, and the connecting portion can be a columnar structure or a sheet structure, etc. The present embodiment does not limit the specific position and shape of the guide portion 110. The guide portion 110 is used to wind the traction rope, and the winding direction and the winding direction of the traction rope in the guide portion 110 are opposite. The traction rope can rotate around at least part of the guide portion 110, that is, the traction rope can rotate around the guide portion 110 at a certain angle. Among them, the winding direction is the extension direction of the traction rope when it is wound into the guide portion 110, and the winding direction is the extension direction of the traction rope when it is wound out of the guide portion 110. 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 110 to change the extension direction of the traction rope, and the winding direction and the winding direction can be adjusted according to actual needs to adapt to different usage requirements and operating environments.

[0029] 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 guide part 110. The traction wheel 120 has a connecting part 121, which is used to be connected to the proximal end of the traction rope, and the connecting part 121 can rotate together with the traction wheel 120.

[0030] Please continue reading Figure 1 When the traction wheel 120 rotates, the connecting portion 121 and the guiding portion 110 move away from or approach each other. Exemplarily, the guiding portion 110 may be located on one side of the traction wheel 120, and the connecting portion 121 may be located on one side of the traction wheel 120. During the rotation of the traction wheel 120, the guiding portion 110 and the connecting portion 121 move away from or approach each other. During this period, the connecting portion 121 may rotate at the same angle together with the traction wheel 120, and the traction ropes located on both sides of the guiding portion 110 are tightened or loosened, and the tightening or loosening distance of the traction rope as a whole increases. The insertion portion 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 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.

[0031] Furthermore, one end of the traction rope is connected to the rotatable connection part 121. This configuration has higher flexibility and can adapt to more complex lifting and moving requirements.

[0032] In one embodiment, please refer to Figure 1, the angle between the extension direction and the winding direction of the distal end of the traction rope is less than 90 degrees. In other words, the distal end of the traction rope extends roughly along its winding direction, reducing the extension direction of the traction rope to be smoother, and the traction rope can maintain higher efficiency and stability when transmitting force. In addition, this setting can also reduce the number of other components and the contact area between the traction rope and other components, reducing the additional friction and energy loss caused by sudden changes in direction. This setting can enable the traction rope to more effectively convert external force into bending torque on the active bending section, thereby achieving a more precise and controllable bending effect.

[0033] In addition, the connection portion 121 is provided with a connection hole, and the shape and size of the connection hole are usually determined according to the diameter and shape of the proximal end of the traction rope. The connection hole is used to pass through and connect the traction rope, and the traction rope can be interference-fitted with the connection hole so that the two can be stably transmitted. In addition, the connection hole can pass through the connection portion 121, or it can not pass through the connection portion 121, and no specific limitation is made here.

[0034] In some other cases, the hole wall forming the connection hole and the traction rope can be glued, connected with fasteners, etc., which is not limited in this embodiment.

[0035] In another embodiment, see Figure 2 , the traction wheel 120 may also include a reversing portion 122, and the reversing portion 122 and the connecting portion 121 are arranged at intervals. The guide portion 110 is slidably arranged relative to the reversing portion 122, and the reversing portion 122 is used to wind the traction rope wound by the guide portion 110, and the angle between the extension direction and the winding direction of the distal end of the traction rope is greater than or equal to 90 degrees. The reversing portion 122 can ensure that the winding direction and the winding direction of the traction rope are opposite. The reversing portion 122 can not only smoothly receive the traction rope wound by the guide portion 110, but also realize the reasonable distribution of the proximal end and the distal end of the traction rope on both sides of the traction wheel 120. Furthermore, the reversing portion 122 can enable the distal end of the traction rope to extend to a wider angle, thereby improving the implementation effect of the driving structure 100 and facilitating the operation of the handle 200 for routing. This setting not only ensures the continuity and stability of the traction rope during the winding process, but also effectively avoids the tension imbalance problem caused by uneven distribution of the traction rope.

[0036] In one embodiment, please refer to Figure 2, the reversing portion 122 is arranged around the connecting portion 121 to form a rotary groove 123, and the rotary groove 123 can be an arc-shaped groove, etc., which is not limited in this embodiment. The rotary groove 123 extends around the rotating shaft of the traction wheel 120, and the rotary groove 123 has a first end 1231 and a second end 1232 that are far away from each other. The connecting portion 121 is located between the first end 1231 and the second end 1232. The guide portion 110 is slidably fitted in the rotary groove 123 and slides toward the first end 1231 or the second end 1232. In the initial state, the guide portion 110 is located between the first end 1231 and the second end 1232. As the traction wheel 120 rotates, the guide portion 110 will move toward the first end 1231 or the second end 1232 of the rotary groove 123 according to the dialing direction of the medical staff.

[0037] For further information, please refer to Figure 2 , the guide part 110 rotates toward the second end 1232 of the rotary groove 123, and the distance between the guide part 110 and the connecting part 121 becomes larger and larger, so that the traction rope is gradually tightened. The guide part 110 rotates toward the first end 1231 of the rotary groove 123, and the distance between the guide part 110 and the connecting part 121 becomes smaller and smaller, so that the traction rope is gradually loosened. The tension and relaxation of the traction rope are adjusted by this setting, and the setting of the rotary groove 123 can also limit the rotational cooperation between the traction wheel 120 and the guide part 110, so as to ensure the relative range of movement between the traction wheel 120 and the guide part 110, and improve the driving effect of the driving mechanism on the traction rope.

[0038] Furthermore, the guide portion 110 is rotatably arranged along the rotation groove 123 , which can make the moving path between the guide portion 110 and the connecting portion 121 clearer, avoid the instability of the rotation of the two, and improve the relative rotation effect of the guide portion 110 .

[0039] It is understandable that during the rotation of the traction wheel 120, the guide portion 110 and the connecting portion 121 approach or move away from each other. At the same time, the reversing portion 122 around which the traction rope is wound will also approach or move away from the guide portion 110, and the reversing portion 122 can tighten or loosen the traction rope, and the reversing portion 122 can further increase the telescopic range of the traction rope. The larger telescopic stroke of the traction rope can also improve the operating effect of the operating handle on the traction rope, that is, drive the insertion portion to rotate to the same angle, and the toggle amplitude of the operating handle can be further reduced compared with the prior art, thereby increasing the use range of the endoscope.

[0040] In one embodiment, the connecting portion 121 is disposed on a groove wall forming the rotation groove 123, and during the rotation of the traction wheel 120, the guide portion 110 abuts against the groove wall where the connecting portion 121 is located, and slides along the groove wall toward the first end 1231 or the second end 1232. This arrangement can ensure that the connecting portion 121 always abuts against the groove wall during the sliding process, and the connecting portion 121 does not displace relative to each other in the radial direction of the traction wheel 120, and only displaces along the circumferential direction of the traction wheel 120.

[0041] In one embodiment, see Figure 3 , the outer diameter of the guide part 110 is less than or equal to the width of the rotary groove 123. This arrangement ensures that the guide part 110 can rotate smoothly in the rotary groove 123, reduces the friction between the guide part 110 and the groove wall, and increases the service life of the drive structure 100. The guide part 110 and / or the groove wall forming the rotary groove 123 are provided with a groove 127, and the groove 127 is used to accommodate the traction rope. The groove 127 not only ensures the stability of the traction rope during the rotation process, but also greatly reduces the friction between the traction rope and the guide part 110 and / or the groove wall. This arrangement not only prolongs the service life of the traction rope, but also makes the guide part 110 rotate more smoothly in the rotary groove 123.

[0042] In one embodiment, see Figure 4 The reversing portion 122 has a reversing end 124, which is located at the first end 1231, and a reversing wheel 125 is provided at the reversing end 124. Further, the reversing wheel 125 is rotatably provided at the reversing end 124, and the reversing wheel 125 is used to wind the traction rope wound out of the guide portion 110. When the traction rope is wound on the reversing wheel 125, as the reversing wheel 125 rotates, the traction rope can move smoothly, effectively reducing the sliding friction between the two. This design not only protects the traction rope and prevents it from being damaged by friction, but also improves the transmission efficiency of the traction rope.

[0043] Preferably, the distance between the guide portion 110 and the second end 1232 is less than or equal to the distance between the guide portion 110 and the first end 1231. In other words, the tightening distance of the traction rope is less than the loosening distance of the traction rope, and the second end 1232 can play a certain limiting role, which can prevent the traction rope from being over-tightened. The reversing end 124 for reversing the traction rope is located at the first end 1231. When there are two guide portions 110, one of the guide portions 110 can limit the relative rotation range between the other guide portion 110 and the traction wheel 120 to prevent them from over-rotating.

[0044] To protect the insertion part and prevent it from being excessively bent. Figure 2The driving structure 100 is further provided with a limiting portion 126, which is located in the active path of the traction wheel 120 and is used to limit the rotation angle of the traction wheel 120. Exemplarily, the limiting portion 126 can be provided in the active path of the reversing portion 122. When the traction wheel 120 rotates to a certain position relative to the guide portion 110, the limiting portion 126 abuts against the reversing portion 122, thereby limiting the rotation angle of the traction wheel 120. This setting can prevent the traction wheel 120 from rotating excessively, and ensure that the insertion portion can work normally.

[0045] 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, that is, one traction rope pulls one side of the insertion portion, and the other traction rope pulls the other side of the insertion portion. Figure 5 The guide portion 110 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 connecting portion. The connecting portion 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.

[0046] The 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 connecting portion. 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 during the winding process. It enables the endoscope to better adapt to various complex inspection and treatment environments, providing medical staff with a more convenient and efficient tool.

[0047] There may be multiple first traction ropes and multiple second traction ropes, thereby enhancing the overall strength of the traction ropes to prevent the traction ropes from being broken after long-term use.

[0048] See also Figure 5 as well as Figure 6When the traction wheel 120 rotates in the first direction, the first sub-guide portion 131 and the connecting portion 121 are close to each other, and the second sub-guide portion 132 and the connecting portion 121 are far away from each other. When the traction wheel 120 rotates in the second direction, the first sub-guide portion 131 and the connecting portion 121 are far away from each other, and the second sub-guide portion 132 and the connecting portion 121 are close to each other. The first direction and the second direction are opposite. In addition, the through hole 128 is formed between the first sub-guide portion 131 and the second sub-guide portion 132. This setting can complete two traction rope drives through one traction wheel 120 to control the insertion portion to be able to be bent in at least two directions.

[0049] 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, and the aforementioned related settings regarding the guide portion 110 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.

[0050] In one embodiment, please refer to Figure 6 The 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.

[0051] 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 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 connecting part 121 and the guide part 110 are separated from or close to each other.

[0052] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 1, please continue to refer to Figure 7The 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.

[0053] The technical solution adopted by the present invention can achieve the following beneficial effects: the connecting part 121 is connected to the proximal end of the traction rope, and the guide part 110 is wound around the traction rope. The connecting part 121 can rotate at the same angle with the traction wheel 120, and the connecting part 121 rotates relative to the guide part 110, and the traction ropes on both sides of the guide part 110 are tightened or relaxed. The traction wheel 120 rotates to the same position, and the overall tightening or relaxing distance of the traction rope is longer. 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 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. In addition, the fixed end of the traction rope is stable and does not rotate relative to the shell of the operating handle 200, and the traction rope can rotate more stably and is not easy to shake due to changes in external force or load. During this period, one end of the traction rope is connected to the rotatable connecting part 121. The configuration is more flexible and can adapt to more complex lifting and moving requirements.

[0054] 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.

[0055] 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.

[0056] 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 guide portion, the guide portion is used to wind the traction rope, and the winding direction of the traction rope in the guide portion is opposite to the winding direction of the traction rope; as well as, A traction wheel, the traction wheel is rotatably arranged relative to the guide portion, the traction wheel has a connecting portion, and the connecting portion is used to be connected to the proximal end of the traction rope; Wherein, when the traction wheel rotates, the connecting portion and the guiding portion move away from or closer to each other.

2. The driving structure according to claim 1, characterized in that: The angle between the extension direction of the distal end of the traction rope and the winding direction is less than 90 degrees; And / or, the connecting portion is provided with a connecting hole, and the connecting hole is used to pass through and connect the traction rope.

3. The driving structure according to claim 1, characterized in that: The traction wheel also includes a reversing portion, the reversing portion and the connecting portion are spaced apart, the guide portion is slidably arranged relative to the reversing portion, the reversing portion is used to wind the traction rope wound out of the guide portion, and the angle between the extension direction of the far end of the traction rope and the winding direction is greater than or equal to 90 degrees.

4. The driving structure according to claim 3, characterized in that: The reversing portion is arranged around the connecting portion to form a rotary groove, the rotary groove extends around the rotating shaft of the traction wheel, the rotary groove has a first end and a second end which are far away from each other, the connecting portion is located between the first end and the second end, and the guide portion is slidably fitted in the rotary groove and slides toward the first end or the second end.

5. The driving structure according to claim 4, characterized in that: The connecting portion is arranged on a groove wall forming the rotary groove, and during the rotation of the traction wheel, the guiding portion abuts against the groove wall where the connecting portion is located, and slides along the groove wall toward the first end or the second end; And / or, the outer diameter of the guide portion is less than or equal to the width of the rotary groove, and the guide portion and / or the groove wall forming the rotary groove is provided with a groove, and the groove is used to accommodate the traction rope.

6. The driving structure according to claim 4, characterized in that: The reversing portion has a reversing end, the reversing end is located at the first end, the reversing end is provided with a reversing wheel, and the reversing wheel is used to wind the traction rope wound out of the guide portion; And / or, the distance between the connecting portion and the second end is less than or equal to the distance between the connecting portion and the first end.

7. The driving structure according to claim 1, characterized in that: The driving structure is further provided with a limiting portion, the limiting portion is located in the movable path of the traction wheel, and the limiting portion is used to limit the rotation angle of the traction wheel.

8. The driving structure according to any one of claims 1 to 7, characterized in that: The guide portion includes a first sub-guide portion and a second sub-guide portion, the connecting 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.

9. An operating handle, characterized in that: It comprises the driving structure and adjustment control unit as described in any one of claims 1 to 8, wherein the adjustment control unit is connected to the traction wheel.

10. An endoscope, characterized in that: Comprising the operating handle as claimed in claim 9.

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