Traction tube fixing device and endoscope
The fixed tube device for endoscopes allows for quick and reliable adjustment and fixation of inner tubes, addressing the issues of inadequate support and friction in existing designs, enhancing assembly efficiency and product consistency.
Patent Information
- Application Number
- CN202422138100.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the existing endoscope, the inappropriate length of the traction tube will affect the bending reliability of the steering mechanism, resulting in poor operating feel and inability to effectively fix it in the appropriate position.
A traction pipe fixing device is designed, including a fixing plate and a connecting pipe. By setting up a glue injection structure on the connecting pipe, the traction pipe and the connecting pipe are fixed by using the connecting rubber to adjust and fix the position of the traction pipe.
The fast and reliable fixing of the traction tube is achieved, the assembly efficiency and product qualification rate of the endoscope are improved, the traction tube does not change in the appropriate position, and the operation difficulty is reduced.
Smart Images
Figure CN223095512U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of endoscopes, and particularly relates to a traction tube fixing device and an endoscope. Background Art
[0002] Endoscopes are widely used in the medical field and the industrial field to obtain relevant detection information by entering the interior of an object for detection. During the process of the detection end of the endoscope entering the object and moving for detection, according to the internal structure of the detected object, it is sometimes necessary to be able to bend to adjust the moving and observing directions.
[0003] In the existing endoscope, a traction tube that plays a supporting and protecting role is sleeved on a traction wire. The traction tube is connected between a handle and a steering mechanism, and the traction wire is connected to the steering mechanism. Through the support of the traction tube, when the traction wire is pulled, the steering mechanism can be bent to realize the adjustment of the moving and observing directions. Therefore, whether the length of the traction tube is appropriate affects the reliability of operating the bending of the steering mechanism. When the traction tube is too short, the traction tube cannot connect the steering mechanism and the handle and cannot play a supporting role; when the traction tube is too long, the traction tube will always be in a bent state, increasing the friction between the traction wire and the traction tube, resulting in poor feel when operating the steering mechanism. Thus, it is necessary to solve the problem of how to adjust the traction tube to maintain an appropriate position. Summary of the Utility Model
[0004] In view of this, the utility model provides a traction tube fixing device and an endoscope to solve the problem of how to adjust the position of the traction tube.
[0005] To solve the above problems, the technical solution of the utility model is realized as follows:
[0006] A traction tube fixing device is used for fixing a traction tube on an endoscope. The traction tube fixing device includes: a fixing plate, on which a plurality of through holes are arranged at intervals; a connecting tube, one end of which is connected to the fixing plate and is coaxially arranged with the through holes. A connecting channel for inserting and connecting one end of the traction tube is arranged in the connecting tube. The connecting channel extends from one end to the other end along the axial direction of the connecting tube and communicates with the corresponding through hole. Wherein, the diameter of the through hole is greater than or equal to the outer diameter of the traction tube, and a glue injection structure communicating with the connecting channel is arranged on the connecting tube. The glue injection structure is used for injecting connecting glue into the connecting channel to form an adhesive layer for fixing the traction tube and the connecting tube.
[0007] In some embodiments, the connecting tubes are connected to both ends of the same through hole on opposite sides of the fixing plate, and the two connecting tubes are coaxially arranged.
[0008] In some embodiments, the traction tube fixing device further comprises: a wire tube sleeve, the traction tube is fixedly connected to the wire tube sleeve, and the wire tube sleeve is inserted into the connecting channel; wherein the adhesive layer is at least formed between the wire tube sleeve and the connecting tube.
[0009] In some embodiments, the length of the connecting tube is greater than the length of the wire tube sleeve.
[0010] In some embodiments, a rough structure is provided on the outer surface of the wire tube sleeve and / or the inner wall of the connecting tube.
[0011] In some embodiments, the glue injection structure is a connecting groove.
[0012] In some embodiments, a plurality of the connecting grooves are arranged at intervals along the axial direction of the connecting tube; or, the connecting grooves are extended along the axial direction of the connecting tube.
[0013] In some embodiments, the glue injection structure is a connecting hole.
[0014] In some embodiments, a plurality of the connection holes are arranged at intervals; or, a plurality of the connection holes are arranged at intervals, and each of the connection holes is distributed along the axial direction of the connection pipe.
[0015] The embodiment of the utility model further provides an endoscope, comprising a traction tube, a steering mechanism and the traction tube fixing device as described above, wherein the other end of the traction tube is connected to the steering mechanism; wherein a traction wire is passed through the traction tube.
[0016] The utility model provides a traction tube fixing device and an endoscope, comprising a fixing plate and a connecting tube, wherein a plurality of through holes are arranged at intervals on the fixing plate, the connecting tube is connected to the fixing plate and arranged coaxially with the through holes, and a connecting channel for inserting and connecting one end of the traction tube is arranged in the connecting tube. By adopting a glue injection structure connected to the connecting channel provided on the connecting tube. In this way, by adjusting the position of one end of the traction tube in the connecting channel, the assembly length of the traction tube can be adjusted as needed, and after the adjustment is in place, the connecting glue is injected into the connecting channel through the glue injection structure to form an adhesive layer that fixes the traction tube and the connecting tube, thereby fixing the position between the traction tube and the connecting tube, so that the position of the adjusted traction tube can be maintained at a suitable position, and is stable and unchanged, and the adjustment operation is convenient and reliable. By setting this traction tube fixing device, the endoscope can quickly adjust the traction tube to a suitable position and fix it, the operation difficulty is low, and the assembly efficiency of the endoscope is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the first structure of the traction tube fixing device provided by the embodiment of the utility model;
[0018] Figure 2 It is the second structural schematic diagram of the traction pipe fixing device provided by the embodiment of the present utility model.
[0019] Explanation of reference numerals:
[0020] 1. Traction pipe fixing device; 11. Fixed plate; 12. Connecting pipe; 121. Connecting channel; 122. Glue injection structure; 122a. Connecting groove; 13. Wire pipe sleeve
[0021] 21. Traction pipe; 22. Traction wire. Specific implementation manners
[0022] In order to make the objectives, technical solutions and advantages of the present 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 only used to explain the present utility model and are not used to limit the present utility model.
[0023] In the various specific technical features described in the specific embodiments, they can be combined in any suitable manner without conflict. For example, different embodiments and technical solutions can be formed by combining different specific technical features. To avoid unnecessary repetition, various possible combination methods of the various specific technical features in the present utility model will not be described separately.
[0024] In the following description, the terms "first \ second \..." involved are only used to distinguish different objects and do not indicate that there are any same or related relationships between the objects. It should be understood that the orientation descriptions "above", "below", "outside", "inside" involved are all orientations in the normal use state, and the "left" and "right" directions represent the left and right directions shown in the specific corresponding schematic diagram, which may or may not be the left and right directions in the normal use state.
[0025] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, the element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. "Plurality" means greater than or equal to two.
[0026] Such as Figure 1As shown, a traction tube fixing device 1 provided by an embodiment of the present invention is applied to the fixing of a traction tube 21 on an endoscope. For ease of understanding, it is exemplified that the endoscope is used for detecting the human body interior (such as the intestine, esophagus, etc.). It can be understood that this is not a limitation on the application scope of the traction tube fixing device 1 and the endoscope. The traction tube fixing device 1 is arranged between a steering mechanism and a driving mechanism in a handle. The steering mechanism is used to be inserted into the human body, and the driving mechanism is used to drive the steering mechanism to turn. A traction wire 22 passes through the traction tube fixing device 1, and the driving mechanism is connected to the steering mechanism through the traction wire 22. The driving mechanism drives the movement of the steering mechanism by tightening or loosening the traction wire 22. Specifically, a traction tube 21 that provides support and protection is usually sleeved on the traction wire 22. The traction tube 21 is connected between the driving mechanism and the steering mechanism, so as to provide support. With the support of the traction tube 21, the steering mechanism can be bent when the traction wire 22 is pulled, realizing the adjustment of the moving and observing directions.
[0027] As Figure 1 and Figure 2As shown in the figure, the traction pipe fixing device 1 provided by the embodiment of the present utility model includes a fixing plate 11 and a connecting pipe 12. A plurality of through holes (not shown in the figure) are arranged at intervals on the fixing plate 11, and each through hole is arranged along the thickness direction of the fixing plate 11 and can be arranged in a uniformly distributed manner. One end of the connecting pipe 12 is connected to the fixing plate 11 and is coaxially arranged with the through hole. A connecting channel 121 for inserting and connecting one end of the traction pipe 21 is arranged in the connecting pipe 12, and the connecting channel 121 extends from one end to the other end along the axial direction of the connecting pipe 12 and communicates with the corresponding through hole. Specifically, the diameter of the through hole is greater than or equal to the outer diameter of the traction pipe 21, so that one end of the traction pipe 21 inserted into the connecting channel 121 can pass through the through hole and then pass out from the other side of the fixing plate 11, enabling the traction pipe 21 to have a larger adjustment space. The connecting channel 121 and the through hole can be coaxially or non-coaxially arranged, as long as one end of the traction pipe 21 can pass through the connecting channel 121 and then pass out through the through hole. With such a setting, by sliding the end of the traction pipe 21 connected in the connecting channel 121 along the length direction of the connecting channel 121, the assembly length of the traction pipe 21 can be adjusted as required. The adjustment operation is simple. After adjustment, the situation where the traction pipe 21 is too short to be connected to the steering mechanism or is bent due to its excessive length is avoided. In order to keep the position of the adjusted traction pipe 21 unchanged, in the embodiment of the present utility model, a glue injection structure 122 communicating with the connecting channel 121 is provided on the connecting pipe 12. The glue injection structure 122 is used to inject connecting glue into the connecting channel 121 to form an adhesive layer for fixing the traction pipe 21 and the connecting pipe 12. That is, after the positions of both ends of the traction pipe 21 are adjusted to meet the requirements, the glue injection structure 122 injects connecting glue into the connecting channel 121, and an adhesive layer is formed between the traction pipe 21 and the connecting pipe 12 to fix the position of the traction pipe 21 in the connecting channel 121. Fixing in this adhesive manner is fast, has good firmness, will not loosen randomly, and at the same time, makes the overall structure simple and has good design ingenuity.
[0028] The traction tube fixing device 1 provided by the embodiment of the utility model comprises a fixing plate 11 and a connecting tube 12. The fixing plate 11 is provided with a plurality of through holes at intervals. The connecting tube 12 is connected to the fixing plate 11 and is coaxially arranged with the through holes. A connecting channel 121 for inserting and connecting one end of the traction tube 21 is provided in the connecting tube 12. In this way, one end of the traction tube 21 is inserted into the connecting channel 121, so that the connection between the traction tube 21 and the connecting tube 12 is realized, and the position of the traction tube 21 is adjusted by sliding the traction tube 21 in the connecting channel 121, and the adjustment operation is simple and convenient. At the same time, by providing a glue injection structure 122 connected to the connection channel 121 on the connection tube 12, the glue injection structure 122 injects connection glue into the connection channel 121 to form an adhesive layer that fixes the traction tube 21 and the connection tube 12, the position between the traction tube 21 and the connection tube 12 can be fixed, so that the adjusted position of the traction tube 21 can be maintained at a suitable position and is stable and unchanged, achieving reliable support and providing protection for the traction line 22. The setting of the traction tube fixing device 1 can conveniently adjust the position of the traction tube 21, and the adjusted position fixing operation is simple, the fixing effect is reliable, and the use requirements are well met.
[0029] Specifically, when injecting the connection glue into the connecting channel, the connection glue can be injected through the glue injection structure 122, or after injecting the connection glue through the glue injection structure 122, the connection glue is injected into the corresponding through hole from the back side of the fixed plate 11 where the connection tube 12 is provided. By injecting the connection glue in multiple directions, the reliability of fixing the position of the traction tube 21 is further ensured. The connection glue is UV glue (UV: the abbreviation of Ultraviolet Rays, which means shadowless glue or photosensitive glue in Chinese), which has good bonding effect and low cost.
[0030] In some embodiments, different endoscopes have different numbers of traction tubes 21 according to the requirements for the accuracy of the motion trajectory, and the traction tubes 21 can be provided with two, four or six, etc. Therefore, a plurality of through holes are correspondingly provided on the fixing plate 11, and each through hole is connected with a connecting tube 12, so that the traction tube 21 can be connected correspondingly, thereby realizing the adjustment and control of the shape of the steering mechanism. For example, when four through holes are provided, the steering mechanism can be adjusted in at least four directions of up, down, left and right by pulling different traction lines 22 respectively. In this embodiment, the number of connecting tubes 12 can be adjusted according to the number of traction tubes 21. The number of connecting tubes 12 can be equal to the number of traction tubes 21 so that each traction tube 21 can be installed. It is also possible that the number of connecting tubes 12 is greater than the number of traction tubes 21, so that the same fixing plate 11 can be applicable to endoscopes with different numbers of traction tubes 21, thereby expanding the scope of use of the traction tube fixing device 1.
[0031] In some embodiments, such as Figure 2 As shown, on the two opposite sides of the fixing plate 11 and at both ends of the same through hole, connecting pipes 12 are connected, and the two connecting pipes 12 are coaxially arranged. With this arrangement, the same traction pipe 21 can be supported by the two connecting pipes 12, and it has good stability during the adjustment operation and is convenient for adjustment. Moreover, connection glue can be injected into the two connecting pipes 12 simultaneously, so that at least two positions of the same traction pipe 21 have adhesive layers, improving the fixing reliability of the traction pipe 21.
[0032] It should be noted that in the embodiments of the present invention, the connection method between the connecting pipe 12 and the fixing plate 11 is not limited. The connection method between the connecting pipe 12 and the fixing plate 11 can be integrally formed, welded, clamped, etc., and can be selected according to specific processing costs, strength and other factors as needed.
[0033] In some embodiments, to improve the firmness of the adhesion between the traction pipe 21 and the connecting pipe 12, a structure for increasing the surface roughness, such as pits or protrusions, can be provided on the outer surface of the traction pipe 21. In this way, after injecting the connection glue, it can adhere to the traction pipe 21 more effectively, and the bonding reliability is good.
[0034] In some embodiments, such as Figure 2 As shown, the traction pipe fixing device 1 further includes a wire pipe sleeve 13. The traction pipe 21 is fixedly connected to the wire pipe sleeve 13, and the wire pipe sleeve 13 is inserted into the connection channel 121; wherein, the adhesive layer is at least formed between the wire pipe sleeve 13 and the connecting pipe 12. Specifically, the inside of the wire pipe sleeve 13 has a cavity. One end of the traction pipe 21 is inserted into this cavity and fixedly connected to the wire pipe sleeve 13. In this way, the traction pipe 21 and the wire pipe sleeve 13 are connected as a whole. Thus, by inserting the wire pipe sleeve 13 into the connection channel 121 and sliding it along the length direction of the connection channel 121, the position of the traction pipe 21 can be adjusted. After the position adjustment is in place, the connection glue injected through the glue injection structure 122 will form an adhesive layer between the wire pipe sleeve 13 and the connecting pipe 12, realizing the fixation of the position between the wire pipe sleeve 13 and the connecting pipe 12 and preventing the traction pipe 21 from moving. The setting of the wire pipe sleeve 13 fills the gap between the traction pipe 21 and the connecting pipe 12, thereby reducing the amount of connection glue required and also improving the curing efficiency of the connection glue.
[0035] In some embodiments, the diameter of the cavity formed inside the wire pipe sleeve 13 is greater than or slightly greater than the outer diameter of the traction pipe 21, so that one end of the traction pipe 21 can be inserted and fixedly connected. At the same time, the wire pipe sleeve 13 is made of plastic material with appropriate hardness, which can not only protect the traction pipe 21 but also reduce the manufacturing cost.
[0036] In some embodiments, such as Figure 2As shown, the length of the connecting pipe 12 is set to be greater than the length of the wire pipe sleeve 13. In this way, the wire pipe sleeve 13 has a certain adjustment range within the connecting pipe 12. Preferably, the wire pipe sleeve 13 after the position adjustment still does not protrude from the connecting pipe 12. In this way, the adjusted wire pipe sleeve 13 can be supported by the connecting pipe 12, improving the stability of the wire pipe sleeve 13 and the reliability during the adhesive connection.
[0037] In some possible implementation schemes, a rough structure can be provided on the outer surface of the wire pipe sleeve 13 and / or the inner wall of the connecting pipe 12. The rough structure is a protrusion or a pit, etc. By means of the rough structure, the contact area between the connecting glue and the wire pipe sleeve 13 and / or the connecting pipe 12 is increased after the connecting glue is injected, improving the firmness of the adhesive connection. Specifically, the rough structure is arranged in such a way that it does not affect the smooth sliding of the wire pipe sleeve 13 within the connecting pipe 12.
[0038] As Figure 1 and Figure 2 shown, in some embodiments, the glue injection structure 122 is a connecting groove 122a. The shape and size of the connecting groove 122a can be set arbitrarily as required, as long as it can meet the requirement of injecting the connecting glue into the connecting channel 121. Moreover, the position where the connecting groove 122a is opened on the connecting pipe 12 can also be set arbitrarily as required, as long as the glue injection operation can be carried out.
[0039] As Figure 1 and Figure 2 shown, in some embodiments, a plurality of connecting grooves 122a can be arranged at intervals along the axial direction of the connecting pipe 12. In this way, the positions of the connecting grooves 122a are distributed on the same straight line, and the convenience of the glue injection operation is good, without the need to find the positions of different connecting grooves 122a. Moreover, each connecting groove 122a corresponds to a different position of the connecting channel 121, so that according to the actual position fixing requirements, the connecting glue can be injected into the corresponding connecting groove 122a, improving the accuracy of the glue injection operation, enabling precise glue injection, and thus reducing the consumption and waste of the connecting glue. Of course, it can be understood that the connecting groove 122a can also be set to one, and the connecting groove 122a is arranged to extend along the axial direction of the connecting pipe 12. The extending length can be the entire length of the connecting pipe 12 or slightly shorter than the length of the connecting pipe 12. In this setting, the connecting groove 122a is a long and narrow structure, and the position of the traction pipe 21 or the wire pipe sleeve 13 within the connecting channel 121 can be directly viewed through the connecting groove 122a. Thus, accurate glue injection can be achieved, and the convenience of the glue injection operation is improved.
[0040] In some possible embodiments, the glue injection structure 122 may also be a connection hole. Similarly, the shape and size of the connection hole can be arbitrarily set as required, as long as it can meet the requirement of injecting connection glue into the connection channel 121. Moreover, the position where the connection hole is opened on the connection pipe 12 can also be arbitrarily set as required, as long as the glue injection operation can be performed. The glue injection structure 122 is set as a connection hole, which is convenient to manufacture and will not excessively damage the shape and strength of the connection pipe 12.
[0041] In some embodiments, a plurality of connection holes are arranged at intervals, and each connection hole can be distributed at any position of the connection pipe 12 as required, so that the glue injection operation can be performed from various directions to meet the glue injection requirements in different directions. Of course, it is also possible to arrange a plurality of connection holes at intervals, and each connection hole is distributed along the axial direction of the connection pipe 12. In this way, each connection hole is distributed on the same straight line, and the glue injection operation can be performed on different connection holes in the same orientation without searching for different connection holes, and the convenience of the glue injection operation is good.
[0042] In the embodiment of the present utility model, an endoscope is further provided, which includes a traction tube, a steering mechanism, and the above-mentioned traction tube fixing device 1. The endoscope further includes an insertion tube, a handle, and a driving mechanism. The steering mechanism and the insertion tube are connected to form an insertion part for inserting into the human body. The insertion part can be bent to adapt to the shape of the internal cavity of the human body, so as to reach the target during continuous pushing. Specifically, the handle is located outside the human body, and the insertion tube is connected between the steering mechanism and the handle. The driving mechanism and the traction tube fixing device 1 are arranged in the handle, and the traction tube fixing device 1 is arranged between the driving mechanism and the steering mechanism. One end of the traction wire 22 is connected to the driving mechanism, and the other end of the traction wire 22 sequentially passes through the traction tube fixing device 1 and the insertion tube and is connected to the steering mechanism. In this way, supported by the traction tube 21, the driving mechanism can control the movement of the driving steering mechanism by tightening or loosening the traction wire 22, such as bending to achieve the purpose of adjusting the steering.
[0043] In the embodiment of the present utility model, the endoscope is provided with the above-mentioned traction tube fixing device 1, and the traction tube fixing device 1 can quickly adjust the assembly length of each traction tube 21, with good consistency and high adjustment qualification rate, thereby improving the assembly efficiency of the traction tube 21, and further improving the assembly efficiency of the endoscope. And it is ensured that each time of assembly, the traction tube 21 can be connected between the connection pipe 12 and the steering mechanism, and there will be no situation that the two ends cannot be connected due to the too short length of the traction tube 21 or the traction tube 21 is bent due to the too long length, thereby improving the product qualification rate of the endoscope and the consistency of different endoscope products.
[0044] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A traction tube fixing device for fixing a traction tube on an endoscope, characterized in that, The traction tube fixing device comprises: A fixing plate, wherein a plurality of through holes are arranged at intervals on the fixing plate; A connecting pipe, one end of which is connected to the fixing plate and is coaxially arranged with the through hole, wherein a connecting channel for inserting and connecting one end of the traction pipe is arranged in the connecting pipe, and the connecting channel extends from one end to the other end along the axial direction of the connecting pipe and is communicated with the corresponding through hole; Among them, the diameter of the through hole is greater than or equal to the outer diameter of the traction tube, and the connecting tube is provided with a glue injection structure connected to the connecting channel, and the glue injection structure is used to inject connecting glue into the connecting channel to form an adhesive layer fixing the traction tube and the connecting tube.
2. The traction pipe fixing device according to claim 1, wherein The two opposite sides of the fixing plate and both ends of the same through hole are connected with the connecting pipes, and the two connecting pipes are coaxially arranged.
3. The traction pipe fixing device according to claim 1, characterized in that, The traction tube fixing device also includes: A wire tube sleeve, the traction tube is fixedly connected to the wire tube sleeve, and the wire tube sleeve is inserted in the connecting channel; Wherein, the adhesive layer is formed at least between the wire tube sleeve and the connecting tube.
4. The pipe pulling fixing device according to claim 3, characterized in that, The length of the connecting pipe is greater than the length of the wire pipe sleeve.
5. The traction pipe fixing device according to claim 3, characterized in that, A rough structure is arranged on the outer surface of the wire tube sleeve and / or the inner wall of the connecting tube.
6. The traction pipe fixing device according to any one of claims 1 to 5, characterized in that, The glue injection structure is a connecting groove.
7. The traction pipe fixing device according to claim 6, characterized in that, A plurality of the connecting grooves are arranged at intervals along the axial direction of the connecting pipe; or the connecting grooves are extended along the axial direction of the connecting pipe.
8. The pulling pipe fixing device according to any one of claims 1 to 5, characterized in that, The glue injection structure is a connecting hole.
9. The pipe pulling fixing device according to claim 8, wherein, A plurality of the connection holes are arranged at intervals; or, a plurality of the connection holes are arranged at intervals, and each of the connection holes is distributed along the axial direction of the connection pipe.
10. An endoscope, characterized in that, It comprises a traction tube, a steering mechanism and a traction tube fixing device as claimed in any one of claims 1 to 9, wherein the other end of the traction tube is connected to the steering mechanism; wherein a traction line is passed through the traction tube.