Clamp lifting assembly, tip structure and endoscope

Abstract

The utility model relates to the technical field of medical instruments, and provides a forceps lifting assembly, a tip structure and an endoscope. The clamp lifting assembly comprises a clamp lifting device, a pull wire and a fixing column, a fixing hole is formed in the clamp lifting device, the pull wire penetrates through the fixing hole, and the fixing column also penetrates through the fixing hole. The tip structure comprises a tip support and the clamp lifting assembly, and the clamp lifting device is arranged on the tip support. The endoscope comprises a main body and the tip structure, wherein the main body is at least connected with the tip bracket. According to the clamp lifting assembly, the pull wire and the fixing column are arranged in the fixing holes in the penetrating mode respectively, the fixing column can limit movement of the pull wire, and therefore the pull wire and the clamp lifting device are fixed, and therefore reliable fixing of the pull wire and the clamp lifting device can be achieved without welding and other complex modes, the assembly operation threshold is low, and the assembly efficiency is improved. The assembling operation of the lifting clamp assembly can be effectively simplified, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a forceps lifting assembly, an advanced structure, and an endoscope. Background Technology

[0002] Endoscopes are medical devices used for disease diagnosis and treatment, allowing insertion into the patient's body to observe lesions. Some endoscopes, such as duodenoscopes, are equipped with a forceps lifter, which is usually connected to a thin traction cable. Medical personnel can move the forceps lifter by pulling the traction cable to perform surgical procedures. In related technologies, the forceps lifter and traction cable of endoscopes are usually connected by welding or other methods, which makes the assembly operation relatively complex and the production cost high. Utility Model Content

[0003] In view of this, the present invention provides a lifting clamp assembly, an end-point structure, and an endoscope to solve the problems of complex assembly and high production costs of the lifting clamp in existing endoscopes.

[0004] To solve the above problems, the technical solution of this utility model is as follows:

[0005] A lifting clamp assembly includes: a lifting clamp with a fixing hole; a traction line passing through the fixing hole; and a fixing post passing through the fixing hole to fix the traction line.

[0006] In some embodiments, the lifting clamp is provided with a positioning structure for positioning the traction line, and the traction line is connected to the positioning structure.

[0007] In some embodiments, the positioning structure is a positioning hole formed on the lifting clamp, and the traction line passes through the positioning hole and the fixing hole in sequence.

[0008] In some embodiments, the lifting clamp has a sidewall, and the fixing hole and the positioning hole are both formed through the same sidewall; wherein the sidewall has a first surface and a second surface opposite to each other, and the traction line passes through the positioning hole from the first surface and folds back from the second surface to pass through the fixing hole.

[0009] In some embodiments, a receiving groove is provided on the second surface, and both the fixing hole and the positioning hole are located in the receiving groove; wherein, the traction line located on the second surface is fixed in the receiving groove.

[0010] In some embodiments, the positioning structure is a pressure plate disposed on the clamping device, and a positioning space is formed between the pressure plate and the clamping device for the traction line to pass through; or, the positioning structure is a slot disposed on the clamping device, and the traction line is locked in the slot.

[0011] In some embodiments, the axial cross-sectional shape of the fixing hole is tapered; wherein, along the insertion direction of the traction line through the fixing hole, the diameter of the fixing hole gradually increases.

[0012] In some embodiments, the diameter of the fixing post is larger than the diameter of the fixing hole.

[0013] This utility model embodiment also provides an end structure, including an end support and the above-mentioned lifting clamp assembly, wherein the lifting clamp is disposed on the end support.

[0014] This utility model embodiment also provides an endoscope, including a main body and the aforementioned tip structure, wherein the main body is at least connected to the tip support.

[0015] The clamping assembly, tip structure, and endoscope provided in this embodiment of the invention include a clamping device, a traction cable, and a fixing post. The clamping device has a fixing hole. By inserting one end of the traction cable into the fixing hole and then inserting the fixing post into the fixing hole, the fixing post presses firmly against the traction cable, thus restricting the movement of the traction cable and stably locking it within the fixing hole, thereby fixing the traction cable to the clamping device. In this way, by using the tight clamping fixation between the fixing post and the traction cable, a reliable fixed connection between the traction cable and the clamping device can be achieved without the need for complex methods such as welding. Assembly is simple, with a low assembly threshold, effectively simplifying the assembly operation of the clamping assembly and reducing production costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the first lifting clamp assembly provided in this embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first lifting clamp assembly provided in this embodiment of the present invention from another perspective;

[0018] Figure 3 This is a schematic diagram of the structure of the second type of lifting clamp assembly provided in this embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the third type of lifting clamp assembly provided in this embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the fourth type of lifting clamp assembly provided in this embodiment of the utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Lifting clamp assembly; 11. Lifting clamp device; 111. Fixing hole; 112. Positioning hole; 113. Wire clamp plate; 1131. Positioning space; 114. Slot; 115. Side wall; 1151. First surface; 1152. Second surface; 116. Receiving slot; 12. Pulling wire; 13. Fixing post. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this utility model will not be described separately.

[0025] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0026] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0027] This utility model provides a forceps assembly for use in an endoscope. An endoscope is a medical device used for disease diagnosis and treatment, having an insertion end for internal human intervention and a control end for observation and operation by medical personnel. The insertion end typically includes a camera module, a light source, and other components, while the control end typically includes observation and operation devices. The insertion end and control end are connected by a long, thin tube containing a delivery tube for conveying substances such as air and water, as well as several traction lines connecting to the operation devices. When using an endoscope, medical personnel can insert the insertion end into a designated location within the patient's body, observe internal lesions through the observation devices, deliver substances via the delivery tube when necessary, and adjust the position of the insertion end using the operation devices to observe different areas or facilitate insertion and removal. Some endoscopes are equipped with a forceps lifter at the insertion end to assist in surgical procedures. The forceps lifter is connected to the operating device via a traction cable. Specifically, one end of the traction cable is fixed to the forceps lifter, and the other end is connected to the operating device. Medical personnel drive the traction cable through the operating device, which in turn moves the forceps lifter to perform the necessary surgical procedures, such as grasping diseased tissue. Understandably, reliable fixation between the forceps lifter and the traction cable is crucial to ensuring the accuracy of the forceps lifter's movement.

[0028] In related technologies, the traction wire and the lifting clamp are usually fixedly connected by welding. Due to the difficulty and specialization of welding technology, it requires professional technicians to complete the welding reliably. Moreover, since the traction wire and the lifting clamp are components that need to be inserted into the human body and are relatively small in size, the welding is difficult and complex, requiring highly skilled technicians and prone to rework or scrapping, resulting in low assembly efficiency and high production costs. This also makes the cost of endoscope products high, which is not conducive to the widespread use of endoscopes. In view of this, the present invention provides a lifting clamp assembly that improves the fixed connection method between the lifting clamp and the traction wire, which can further simplify the assembly operation and reduce production costs while achieving a reliable fixed connection.

[0029] like Figure 1 and Figure 2 As shown, the lifting clamp assembly 1 includes a lifting clamp 11, a traction cable 12, and a fixing post 13. The lifting clamp 11 has a fixing hole 111, through which the traction cable 12 passes. The fixing post 13 also passes through the fixing hole 111 to fix the traction cable 12, so that the traction cable 12 can be fixedly connected to the lifting clamp 11. Thus, the lifting clamp 11 can be moved by the pulling of the traction cable 12.

[0030] There are various methods for achieving a stable connection between the traction cable 12 and the lifting clamp 11 via the fixing post 13. For example, in some embodiments, the diameter of the fixing hole 111 is set to be larger than the diameter of the traction cable 12 so that the traction cable 12 can be easily passed through the fixing hole 111. At the same time, the diameter of the fixing post 13 is adapted to the diameter of the fixing hole 111 or can be slightly smaller than the diameter of the fixing hole 111. When the fixing post 13 is passed through the fixing hole 111, the traction cable 12 can be squeezed against the inner wall of the fixing hole 111 as the fixing post 13 is inserted, thereby achieving the clamping and fixing of the traction cable 12, and thus achieving the connection between the traction cable 12 and the lifting clamp 11. In some embodiments, the surface of the fixing post 13 may be provided with a material layer with a high coefficient of friction and / or a relatively rough surface, or the fixing post 13 may be directly made of a material with a high coefficient of friction and / or a relatively rough surface. This increases the friction between the fixing post 13 and the traction line 12, as well as between the fixing post 13 and the fixing hole 111, when the fixing post 13 contacts and is pressed against the traction line 12. This better prevents the traction line 12 from loosening or detaching from the fixing hole 111, improving the reliability of the fixing of the traction line 12 and the clamping device 11. In some embodiments, the aforementioned friction-increasing material layer may also be provided on the inner wall of the fixing hole 111, or on the surface of the portion of the traction line 12 that passes through the fixing hole 111, allowing for more flexible design options.

[0031] The clamp assembly 1 provided in this embodiment includes a clamping device 11, a traction cable 12, and a fixing post 13. The clamping device 11 has a fixing hole 111, and the traction cable 12 and the fixing post 13 are sequentially passed through the fixing hole 111. The fixing post 13 presses the traction cable 12 tightly within the fixing hole 111, effectively restricting the movement of the traction cable 12. This ensures reliable fixation between the traction cable 12 and the clamping device 11. The structure is simple and easy to implement. When assembling the clamp assembly 1, simply pass the traction cable 12 through the fixing hole 111 first, and then pass the fixing post 13 through the fixing hole 111 to complete the assembly operation. The operation steps are simple, requiring no welding or specialized technicians. The low barrier to entry reduces the likelihood of rework or scrap, significantly improving assembly efficiency, simplifying the assembly process, and reducing production costs.

[0032] It should be noted that since the lifting clamp assembly 1 does not require welding to fix the lifting clamp 11 and the traction line 12, the lifting clamp 11 can be made of non-metallic materials. For example, in some embodiments, the lifting clamp 11 can be made of plastic material, specifically manufactured using injection molding. In this way, the fixing holes 111 or other structures provided on the lifting clamp 11 can be directly molded, thereby further reducing production costs, improving production efficiency, facilitating mass production, and ensuring high product consistency.

[0033] In some embodiments, the lifting clamp 11 is provided with a positioning structure for positioning the traction line 12, and the traction line 12 is connected to the positioning structure. By providing the positioning structure, during assembly, the traction line 12 can be first connected to the positioning structure and then passed through the fixing hole 111. This reduces the loosening of the traction line 12 and facilitates alignment with the installation position. Furthermore, the positioning structure can provide a certain limiting effect, improving the accuracy of the movement of the traction line 12 when operating the lifting clamp assembly 1, and better driving the lifting clamp 11 to move and perform the required actions.

[0034] There are several design options for the positioning structure; for example, in some implementation schemes, such as... Figures 1 to 3 As shown, the positioning structure can be a positioning hole 112 formed on the lifting clamp 11, with the traction wire 12 passing through the positioning hole 112 and the fixing hole 111 in sequence. In some embodiments, such as... Figure 4 As shown, the positioning structure can be a pressure plate 113 mounted on the clamping device 11. A positioning space 1131 is formed between the pressure plate 113 and the clamping device 11 for the traction wire 12 to pass through. The traction wire 12 passes sequentially through the positioning space 1131 and the fixing hole 111. In this scheme, the shape and size of the pressure plate 113 and the positioning space 1131 can be designed to tightly press the traction wire 12 against the pressure plate 113. Combined with the design of the fixing post 13 passing through the fixing hole 111 and tightly pressing the traction wire 12, multiple locking of the traction wire 12 can be achieved, further improving the fixing effect. In some implementation schemes, such as... Figure 5 As shown, the positioning structure can be a slot 114 on the clamp 11, with the traction cable 12 secured within the slot 114 and passing through the fixing hole 111. Similarly, by designing the shape and size of the slot 114, multiple locking positions can be achieved, improving the fixing effect. Of course, other design schemes can also be used for the positioning structure, offering high design flexibility, as long as the positioning function of the traction cable 12 is achieved.

[0035] Regarding the number of positioning structures, optionally, only one positioning structure can be set, which saves space; alternatively, multiple positioning structures can be set, with the traction line 12 passing through each positioning structure in sequence, thereby enabling the traction line 12 to be positioned at multiple locations, which is beneficial for optimizing the layout path of the traction line 12. When multiple positioning structures are set, each positioning structure can adopt the same or different forms, referring to the scheme provided in the above example, which allows for more flexible design.

[0036] In some embodiments, when the positioning structure is positioning hole 112, such as Figure 1 and Figure 2As shown, the lifting clamp 11 has a side wall 115, and a fixing hole 111 and a positioning hole 112 are both opened through the same side wall 115. The side wall 115 has a first surface 1151 and a second surface 1152 opposite to each other. The traction line 12 passes through the positioning hole 112 from the first surface 1151 and folds back from the second surface 1152 and passes through the fixing hole 111.

[0037] Optionally, in some embodiments, the diameter of the positioning hole 112 can be similar to the diameter of the traction wire 12, as long as the traction wire 12 can just pass through the positioning hole 112. In this design, the positioning hole 112 has a good limiting effect on the traction wire 12. In some embodiments, a fixing post 13 can also be inserted into the positioning hole 112, so that the traction wire 12 can be pressed and fixed in the positioning hole 112. In this way, the traction wire 12 is locked in position in both the fixing hole 111 and the positioning hole 112, further improving the reliability of the fixation.

[0038] Some implementation schemes, such as Figure 2 As shown, during assembly, the fixing post 13 can be inserted into the fixing hole 111 from the second side 1152. In this way, the direction in which the fixing post 13 passes through the fixing hole 111 is consistent with the traction line 12, preventing the traction line 12 from being pushed out of the fixing hole 111 during installation, thus facilitating installation. Of course, the fixing post 13 can also be inserted into the fixing hole 111 from the first side 1151, for example, in some embodiments, such as... Figure 3 As shown, during assembly, one end of the traction wire 12 can be passed through the fixing hole 111 and then protrude from the fixing hole 111 from the first surface 1151. The fixing post 13 is inserted into the fixing hole 111, avoiding the end of the traction wire 12. This can also prevent the traction wire 12 from being pushed out of the fixing hole 111. Furthermore, when the traction wire 12 tends to detach from the fixing hole 111, this assembly method can drive the fixing post 13 to go deeper into the fixing hole 111, thereby increasing the clamping force of the fixing post 13 on the traction wire 12, better preventing the traction wire 12 from loosening, and improving the fixing effect.

[0039] In some embodiments, such as Figure 2 and Figure 3 As shown, a receiving groove 116 is provided on the second surface 1152. The fixing hole 111 and the positioning hole 112 are both located within the receiving groove 116, and the traction wire 12 located on the second surface 1152 is fixed within the receiving groove 116. With this design, the portion of the traction wire 12 located on the second surface 1152 will not protrude outwards, making full use of the space of the side wall 115, resulting in a compact structure and good aesthetics. Furthermore, the space of the receiving groove 116 provides a certain degree of protection for the traction wire 12. During the movement of the lifting clamp 11 driven by the traction wire 12, the traction wire 12 is less likely to interfere with other components of the endoscope, improving the accuracy of movement and ensuring good reliability.

[0040] In some embodiments, such as Figure 3 As shown, the axial cross-sectional shape of the fixing hole 111 is conical, and it is inserted along the traction line 12 in the insertion direction of the fixing hole 111, with the diameter of the fixing hole 111 gradually increasing. For example, in some implementations, the traction wire 12 passes through the fixing hole 111 from the second surface 1152. The diameter of the fixing hole 111 gradually increases from the second surface 1152 to the first surface 1151. During assembly, the fixing post 13 can pass through the fixing hole 111 from the first surface 1151. In this way, the direction in which the fixing post 13 penetrates the fixing hole 111 is opposite to the direction in which the traction wire 12 leaves the fixing hole 111. When the traction wire 12 tends to leave the fixing hole 111, it can drive the fixing post 13 to penetrate further into the fixing hole 111. The diameter of the fixing hole 111 decreases along the direction in which the fixing post 13 penetrates, so that the fixing post 13 can be inserted more tightly into the fixing hole 111. This can better prevent the traction wire 12 from loosening and achieve reliable locking between the traction wire 12 and the lifting clamp 11.

[0041] When the cross-sectional shape of the fixing hole 111 is set to a conical shape, the shape of the fixing post 13 can optionally be set to a conical shape that matches the fixing hole 111, or it can be set to a cylindrical shape or other shapes. It is understood that the shapes of the fixing hole 111 and the fixing post 13 are not limited to cylindrical shapes, nor are they limited to the same shape, as long as the fixing post 13 can be inserted into the fixing hole 111 to achieve reliable fixing of the traction line 12. The specific design can be flexibly adjusted according to the effect of fixing the traction line 12.

[0042] In some embodiments, the diameter of the fixing post 13 is larger than the diameter of the fixing hole 111. For example, in some implementations, both the fixing post 13 and the fixing hole 111 are cylindrical, the diameter of the fixing post 13 is larger than the diameter of the fixing hole 111, and the fixing post 13 has a certain degree of elasticity. During assembly, the fixing post 13 can be pressed into the fixing hole 111, so that an interference fit is formed between the fixing post 13 and the fixing hole 111. In this way, the fixing post 13 is more secure and less prone to loosening, which can improve the reliability of fixing the traction line 12.

[0043] This utility model embodiment also provides a tip structure for an endoscope. The tip can be understood as the front end or head end. For an endoscope, the tip is the insertion end used to intervene inside the human body. The tip structure is the specific structure of the insertion end. The tip structure includes a tip support and the aforementioned lifting clamp assembly 1. The lifting clamp 11 is disposed on the tip support. In addition, the tip support is usually also provided with components such as a camera module and a light source to provide the necessary field of view. The specific design can be made with reference to relevant technologies. The tip structure provided by this utility model, by adopting the lifting clamp assembly 1 in the above embodiment, allows for assembly by first passing the traction wire 12 through the fixing hole 111, or passing the traction wire 12 through a positioning structure such as the positioning hole 112 and then through the fixing hole 111, and finally inserting the fixing post 13 into the fixing hole 111. The assembly operation is simple, the operation threshold is low, the production efficiency is high, the production cost is reduced, and it is suitable for mass production, which can better ensure the consistency of the product.

[0044] This invention also provides an endoscope, including a main body and the aforementioned tip structure, wherein the main body is at least connected to the tip support. In some embodiments, the main body includes an insertion tube and an operating part, with the tip structure and the operating part connected to both ends of the insertion tube. By pushing the insertion tube, the tip structure inserted into the body can be moved, thereby pushing the tip structure to the target site. By controlling the operating part, the tip structure can be driven to perform a specified action, thereby realizing the relevant surgical operation.

[0045] The endoscope provided by this utility model can be a duodenoscope or other endoscope that requires a lifting forceps assembly 1. Since the aforementioned tip structure with lifting forceps assembly 1 is adopted, it is understood that the endoscope provided by this utility model embodiment also has the advantages of simple assembly and operation and low production cost, which is conducive to the popularization and use of endoscopes, improves the convenience of surgical operation, and can also reduce the economic burden on patients using endoscopes for diagnosis and treatment.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tongs assembly comprising: include: A lifting clamp, wherein a fixing hole is provided on the lifting clamp; The traction line is threaded through the fixing hole; A fixing post is inserted into the fixing hole to fix the traction line.

2. The elevator assembly of claim 1, wherein, The lifting clamp is provided with a positioning structure for positioning the traction line, and the traction line is connected to the positioning structure.

3. The elevator assembly of claim 2, wherein, The positioning structure is a positioning hole opened on the lifting clamp, and the traction line is sequentially passed through the positioning hole and the fixing hole.

4. The elevator assembly of claim 3, wherein, The lifting clamp has a side wall, and the fixing hole and the positioning hole are both opened through the same side wall; The sidewall has a first surface and a second surface, and the traction line passes through the positioning hole from the first surface and folds back from the second surface to pass through the fixing hole.

5. The elevator assembly of claim 4, wherein, A receiving groove is provided on the second surface, and both the fixing hole and the positioning hole are located in the receiving groove; The traction line located on the second side is fixed inside the receiving groove.

6. The elevator assembly of claim 2, wherein, The positioning structure is a pressure plate disposed on the clamping device, and a positioning space is formed between the pressure plate and the clamping device for the traction line to pass through; or, the positioning structure is a slot disposed on the clamping device, and the traction line is locked in the slot.

7. The elevator assembly of any one of claims 1 to 6, wherein, The axial cross-sectional shape of the fixing hole is tapered. In particular, along the direction in which the traction line passes through the fixing hole, the diameter of the fixing hole gradually increases.

8. The elevator assembly of any one of claims 1 to 6, wherein, The diameter of the fixing post is larger than the diameter of the fixing hole.

9. A tip structure applied to an endoscope, characterized by comprising: It includes an end support and a lifting clamp assembly as described in any one of claims 1 to 8, wherein the lifting clamp is disposed on the end support.

10. An endoscope characterized by comprising: It includes a main body and an advanced structure as described in claim 9, wherein the main body is at least connected to the advanced support.

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