Pipe assembly, operating handle and endoscope

Abstract

The present invention discloses a pipeline assembly, an operating handle and an endoscope, which relate to the technical field of medical devices. The pipeline assembly includes a pipeline connector and a negative pressure suction piece. The pipeline connector has an output end, and the output end is provided with a first bend and a second bend. The first bend and the second bend are bent in directions away from each other. The negative pressure suction piece has an input end, and a limiting groove is provided at the input end. The input end includes a connecting part, and the connecting part is provided in the limiting groove. At least part of the first bend and at least part of the second bend can be circumferentially positioned with the connecting part, which can avoid the negative pressure suction piece from being offset, tilted, etc. The first bend and the second bend have deformation capabilities, which can buffer external impacts to ensure a stable connection between the pipeline connector and the negative pressure suction piece. In addition, the assembly can be completed by simply embedding the first bend and the second bend into the limiting groove, which is simple and easy to use and improves assembly efficiency.

Description

Technical Field

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

[0002] An endoscope is a commonly used medical device that can directly access the body's natural channels, providing doctors with comprehensive diagnostic information for treating diseases. Endoscopes are equipped with a negative pressure connector that connects an external negative pressure source to the instrument tube. This negative pressure source provides negative pressure to the tube, enabling the endoscope's suction operation.

[0003] Existing negative pressure joints have poor installation stability and are cumbersome to install. Furthermore, the complex installation process increases the assembly error rate, thereby affecting the assembly yield rate. Summary of the Invention

[0004] In view of the shortcomings of the above-mentioned related technologies, the present application provides a pipeline assembly, an operating handle and an endoscope to solve the above-mentioned technical problems.

[0005] The present application provides a pipeline assembly for an endoscope, wherein the pipeline assembly includes a pipeline connector and a negative pressure suction component, wherein the pipeline connector has an output end, and the output end is provided with a first bend and a second bend, and the first bend and the second bend are bent in directions away from each other, and the negative pressure suction component has an input end, and a limiting groove is provided at the input end, and the input end includes a connecting portion, and the connecting portion is arranged in the limiting groove, wherein the input end and the output end are connected to each other, and at least part of the first bend and at least part of the second bend can be embedded in the limiting groove and circumferentially positioned with the connecting portion so that the input end and the output end are limited and stopped.

[0006] To achieve the above-mentioned purpose and other related purposes, the present application provides an operating handle including the aforementioned pipeline assembly.

[0007] To achieve the above objectives and other related objectives, the present application provides an endoscope, including the aforementioned operating handle.

[0008] The technical solution employed by the present invention achieves the following beneficial effects: the first and second curved portions can be inserted into the retaining groove, and the groove walls forming the retaining groove can squeeze the first and second curved portions to deform. The two portions cooperate with each other to achieve a sealed arrangement between the input and output ends, preventing the output and input ends from separating from each other. This improves the structural stability of the pipeline assembly and ensures its proper operation. Furthermore, at least a portion of the first and second curved portions can be circumferentially positioned relative to the connecting portion, which restricts relative rotation between the first and second curved portions and the connecting portion, thereby preventing the negative pressure suction element from shifting or tilting. Furthermore, the first and second curved portions are deformable, which can cushion external impacts and ensure a stable connection between the pipeline connector and the negative pressure suction element. Furthermore, the pipeline connector and the negative pressure suction element can be assembled quickly, requiring only the first and second curved portions to be inserted into the retaining grooves. This simple installation procedure requires no learning and is easy to use. This reduces assembly errors and improves assembly yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0010] Figure 1 is a schematic structural diagram of an endoscope shown in an exemplary embodiment of the present application;

[0011] Figure 2 is a schematic structural diagram of another endoscope shown in an exemplary embodiment of the present application;

[0012] Figure 3 is a structural schematic diagram of a pipeline assembly shown in an exemplary embodiment of the present application;

[0013] Figure 4 is a schematic structural diagram of a pipeline connector shown in an exemplary embodiment of the present application;

[0014] Figure 5 is an exploded schematic diagram of a pipeline assembly shown in an exemplary embodiment of the present application;

[0015] Figure 6 1 is a schematic structural diagram of another pipe connector according to an exemplary embodiment of the present application;

[0016] Figure 71 is a schematic structural diagram of another negative pressure suction device according to an exemplary embodiment of the present application;

[0017] Figure 8 is a schematic structural diagram of a pipeline connector shown in an exemplary embodiment of the present application;

[0018] Figure 9 1 is a schematic structural diagram of another negative pressure suction device according to an exemplary embodiment of the present application;

[0019] Figure 10 yes Figure 9 Enlarged view of point a in .

[0020] In the figure: 1, endoscope; 100, pipeline assembly; 110, pipeline connector; 111, output end; 1111, first bend; 1112, second bend; 1113, insertion space; 1114, first section; 1115, second section; 112, coupling groove; 1121, first sub-coupling groove; 1122, second sub-coupling groove; 1123, sealing ridge; 113, conducting portion; 114, first stop portion; 115, bump; 120 , negative pressure suction part; 121, input end; 1211, connecting part; 1212, sealing part; 1213, joint part; 1214, limiting groove; 1215, first sub-connecting part; 1216, second sub-connecting part; 1217, groove; 1218, first sub-sealing part; 1219, second sub-sealing part; 1221, operating gap; 1222, sealing groove; 1223, second stop part; 1224, guiding arc surface; 200, operating handle. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0022] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0023] 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".

[0024] The negative pressure connector has poor installation stability and the installation operation is cumbersome. Complex installation operations will also lead to an increase in the assembly error rate, thereby affecting the assembly yield rate. The existing technology has simplified the connection method of the negative pressure connector, but there are still problems such as poor installation stability, installation errors or incomplete installation. For example, after the negative pressure connector is installed on the endoscope, the direction of the negative pressure connector may deviate from the original preset direction, so that the negative pressure connector cannot be connected to the collection bottle and other structures, resulting in failure of the negative pressure connector. At this time, it is difficult to disassemble the negative pressure connector, and the reliability of the subsequent structure will also decrease.

[0025] This application provides a pipeline assembly 100, see Figure 1 and Figure 2 The pipe assembly 100 is used for the endoscope 1. The endoscope 1 can collect image information from the patient's body. For example, the insertion portion of the endoscope 1 is provided with a camera module, which can collect or illuminate the patient's internal conditions. At the same time, the insertion portion can be extended into the patient's body to perform treatment operations, such as aspirating effusions and injecting saline. Furthermore, the endoscope 1 is provided with pipes, including but not limited to instrument tubes and negative pressure suction tubes in the insertion portion. The pipes can be connected to an external negative pressure source, etc., so that the pipes can inject or aspirate media, etc.

[0026] In the examples of this application, please refer to Figure 3 The pipeline assembly 100 may include a pipeline connector 110 and a negative pressure suction member 120, and the pipeline connector 110 and the negative pressure suction member 120 are connected. It is understood that the pipeline connector 110 can be connected to the pipeline inside the endoscope 1, and the pipeline can extend to the distal end of the insertion portion to perform suction. The negative pressure suction member 120 can extend outside the endoscope 1 and be connected to a negative pressure source. The pipeline connector 110 and the negative pressure suction member 120 are connected, and the negative pressure effect of the negative pressure source can act on the insertion portion, which can provide flow power for the medium in the pipeline. In addition, the endoscope 1 also includes a sampling structure such as a sampling bottle. The negative pressure suction member 120 can also be connected to the sampling bottle. Driven by negative pressure, the medium can flow into the sampling bottle to complete the collection operation. At the same time, the sampling bottle is located between the negative pressure suction member 120 and the negative pressure source. The negative pressure of the negative pressure source can act on the negative pressure suction member 120, and the medium will be retained in the sampling bottle, preventing the medium from damaging the negative pressure source.

[0027] See also Figure 4The pipeline connector 110 has an output end 111, and the output end 111 can be a hollow cylindrical structure or a rectangular structure, etc., which is not limited here. The output end 111 can be connected to the pipeline, and the medium in the pipeline can also flow to the output end 111, and the medium can flow to the negative pressure suction member 120 through the output end 111. The output end 111 is provided with a first bend 1111 and a second bend 1112, and the first bend 1111 and the second bend 1112 are bent in directions away from each other. Exemplarily, the first bend 1111 and the second bend 1112 can be a sheet-like structure, and the end of the first bend 1111 can be bent toward a side away from the second bend 1112, and the end of the second bend 1112 can be bent toward a side away from the first bend 1111. Of course, the first bend 1111 and the second bend 1112 can also be other structures, such as a cube, etc., which are not limited.

[0028] The existing negative pressure suction part is partially exposed to facilitate connection with a sampling bottle, etc. However, during use, the exposed sampling bottle is prone to collision with the outside world. The existing sampling bottle is glued to the negative pressure suction part, and the collision force generated by the accidental collision of the sampling bottle is attenuated at the glue point between the two, which can easily cause cracks in the glue point, affecting the connection and sealing of the internal pipeline of the endoscope. In this application, please refer to Figure 3 as well as Figure 5 The negative pressure suction component 120 has an input end 121, and the input end 121 is provided with a limiting groove 1214. The input end 121 includes a connecting portion 1211, and the connecting portion 1211 is arranged in the limiting groove 1214. While the input end 121 and the output end 111 are connected to each other, at least part of the first curved portion 1111 and at least part of the second curved portion 1112 can be embedded in the limiting groove 1214, forming a groove wall of the limiting groove 1214 that can squeeze the first curved portion 1111 and the second curved portion 1112 to deform, and the two mutually limit and cooperate to achieve a sealed setting of the input end 121 and the output end 111. At this time, Figure 6 As shown, Figure 6The first curved portion 1111 and the second curved portion 1112 after deformation are shown. Under the influence of the groove wall of the limiting groove 1214, the first curved portion 1111 and the second curved portion 1112 bend in a direction close to each other and deform. The first curved portion 1111 and the second curved portion 1112 can apply forces in different directions to the groove wall, and this force can generate friction between the groove wall to prevent the output end 111 and the input end 121 from separating from each other. This can improve the structural stability of the pipeline assembly 100 and ensure the normal operation of the pipeline assembly 100. Furthermore, since the first curved portion 1111 and the second curved portion 1112 have the ability to deform, the first curved portion 1111 and the second curved portion 1112 can elastically abut the groove wall forming the limiting groove 1214, and the first curved portion 1111 and the second curved portion 1112 can also elastically abut the connecting portion 1211, so that an elastic seal is set between the input end 121 and the output end 111. When the sampling bottle is bumped or hit, the external impact force will be transmitted to the connection between the input end 121 and the output end 111. At least one of the first curved portion 1111, the second curved portion 1112, the connecting portion 1211, and the groove wall forming the limiting groove 1214 can undergo a slight deformation to buffer the impact force, thereby avoiding structural damage to the endoscope 1 and improving the anti-collision capability and structural stability of the endoscope 1. During this period, the elastic setting can always ensure the sealing setting of the connection between the input end 121 and the output end 111. For example, the first curved portion 1111 undergoes a slight deformation, and the connecting portion 1211 and the groove wall forming the limiting groove 1214 can also undergo corresponding elastic deformation to ensure that the two are always tightly connected. And then quickly restore to its original state, always ensuring the sealing of the pipeline assembly 100 and improving the reliability of use.

[0029] At the same time, at least a portion of the first curved portion 1111 and at least a portion of the second curved portion 1112 can be circumferentially positioned with the connecting portion 1211, so that the input end 121 and the output end 111 are limited and stopped. For example, the tube connector 110 is installed inside the endoscope 1, and a portion of the negative pressure suction member 120 can extend outside the endoscope 1. By circumferentially positioning at least a portion of the first curved portion 1111 and at least a portion of the second curved portion 1112 with the connecting portion 1211, it can be ensured that the orientation of the negative pressure suction member 120 after assembly conforms to a predetermined direction.

[0030] It is understandable that the pipe connector 110 and part of the negative pressure suction component 120 are arranged in the operating handle 200 of the endoscope 1. The internal space of the operating handle 200 is limited. The installation and fixing position and space of the pipe connector 110 and the negative pressure suction component 120 have been reserved during the design period. For the convenience of production, the input end 121 and the output end 111 are generally connected and fixed first, and then installed and fixed in the operating handle 200. If the relative position of the connection and fixing between the input end 121 and the output end 111 is misaligned, it will lead to the inability to correctly install and fix it on the operating handle 200, resulting in the need for secondary adjustment of the input end 121 and the output end 111, which increases the difficulty of production and assembly and reduces the production and assembly efficiency. In this application, by enabling at least a portion of the first curved portion 1111 and at least a portion of the second curved portion 1112 to be circumferentially aligned with the connecting portion 1211, the connecting portion 1211 can be pre-positioned, thereby preventing deviation in the connection position between the output end 111 and the input end 121. This ensures that the orientation of the negative pressure suction element 120 after assembly conforms to a predetermined direction. The assembly method is simple and easy to use, requiring no learning experience. The simple installation operation can also reduce assembly errors and improve assembly yield.

[0031] In a more specific embodiment, see Figure 6 , the input end 121 may further include a sealing portion 1212 and a coupling portion 1213. In some cases, the sealing portion 1212 and the coupling portion 1213 may both be configured as an arc-shaped structure. Of course, in other cases, the sealing portion 1212 and the coupling portion 1213 may also be provided with other structures such as an annular structure, which is not limited here. Furthermore, the sealing portion 1212 and the coupling portion 1213 may be provided on the surface of the pipe connector 110 to form the input end 121. The sealing portion 1212 can abut against the first bend 1111 and the second bend 1112, and the coupling portion 1213 can be connected to an external negative pressure source, which can realize the interconnection between the pipe connector 110 and the negative pressure source.

[0032] See also Figure 7The sealing portion 1212 and the coupling portion 1213 are spaced apart to form a limiting groove 1214. In other words, the limiting groove 1214 can be formed between the sealing portion 1212 and the coupling portion 1213. For example, the sealing portion 1212 can be arranged around the coupling portion 1213, which can enable the limiting groove 1214 to surround the coupling portion 1213. The connecting portion 1211 is connected between the sealing portion 1212 and the coupling portion 1213. Furthermore, the connecting portion 1211 can be arranged in the limiting groove 1214. The connecting portion 1211 can improve the connection stability between the sealing portion 1212 and the coupling portion 1213 and avoid excessive deformation. An insertion space 1113 is formed between the first curved portion 1111 and the second curved portion 1112. The insertion space 1113 can be connected to the pipeline of the insertion portion of the endoscope 1, and the coupling portion 1213 can be inserted into the insertion space 1113.

[0033] In the examples of this application, please refer to Figure 4 and Figure 7 , the output end 111 is provided with a coupling groove 112, and the coupling groove 112 may be a through groove, etc., and is not specifically limited. The connecting portion 1211 and the coupling groove 112 are correspondingly arranged, and the structure and size of the coupling groove 112 may be correspondingly arranged with the connecting portion 1211. While the input end 121 and the output end 111 are interconnected, the connecting portion 1211 is embedded in the coupling groove 112. When the connecting portion 1211 is embedded in the coupling groove 112, due to the tight fit between the connecting portion 1211 and the coupling groove 112, the connecting portion 1211 can effectively fill the space of the coupling groove 112, preventing gas, liquid or other impurities in the external environment from entering the connecting portion 1211, thereby achieving the effect of sealing the coupling groove 112. At the same time, it also prevents the internal medium from flowing out and leaking.

[0034] Also, see Figure 7 The arrangement of the connecting portion 1211 embedded in the coupling groove 112 not only has a sealing effect, but also has a limit and anti-rotation effect. After the connecting portion 1211 is embedded in the coupling groove 112, the connecting portion 1211 and the groove wall forming the coupling groove 112 abut against each other. The groove wall can limit the rotation and movement of the connecting portion 1211 in the coupling groove 112, ensuring that the output end 111 and the input end 121 maintain a relatively fixed position relationship in the connected state, preventing problems such as loose connection and seal failure due to rotation or displacement, and further improving the stability and reliability of the connection.

[0035] For further information, see Figure 8The coupling groove 112 includes a first sub-coupling groove 1121 and a second sub-coupling groove 1122. The first sub-coupling groove 1121 and the second sub-coupling groove 1122 are provided at the output end 111 to divide the output end 111 into a first curved portion 1111 and a second curved portion 1112. The output end 111 can be manufactured by integral injection molding, for example, where the first sub-coupling groove 1121, the second sub-coupling groove 1122, the first curved portion 1111, and the second curved portion 1112 are all integrally formed. This can improve the connection effect of the pipeline connector 110 and also achieve a stop-and-limit function for the first curved portion 1111 and the second curved portion 1112.

[0036] The connecting portion 1211 may further include a first sub-connecting portion 1215 and a second sub-connecting portion 1216, which are located within the limiting groove 1214 and distributed along the circumference of the connecting portion 1213. The first sub-connecting portion 1215 and the second sub-connecting portion 1216 may be evenly or unevenly distributed along the circumference of the connecting portion 1213. In other words, the first sub-connecting portion 1215 and the second sub-connecting portion 1216 may be distributed on the same diameter of the connecting portion 1213. Of course, they may also be distributed on two different diameters of the connecting portion 1213, and this is not limited to this.

[0037] When the coupling portion 1213 is inserted into the insertion space 1113, the first sub-connecting portion 1215 can be inserted into and close the first sub-connecting groove 1121, and the second sub-connecting portion 1216 can be inserted into and close the second sub-connecting groove 1122. By enabling at least a portion of the first curved portion 1111 and at least a portion of the second curved portion 1112 to engage with the connecting portion 1211 in a position-limiting manner, a stop is achieved between the input end 121 and the output end 111, preventing deflection or tilting due to external forces. Simultaneously, the first sub-connecting portion 1215 and the second sub-connecting portion 1216, when inserted into the corresponding first and second sub-connecting grooves 1121 and 1122, provide a sealing function, preventing fluid leakage or intrusion of foreign matter, thereby ensuring the sealing and reliability of the entire connection structure. Furthermore, the first and second sub-connecting portions 1215 and 1216 can evenly bear force, preventing unilateral force on the input end 121. This prevents stress concentration that could damage the structural stability, thereby improving the structural stability.

[0038] In the embodiment of the present application, at least one of the first sub-connecting portion 1215 and the second sub-connecting portion 1216 is provided with a groove 1217, and at least one of the first sub-combining groove 1121 and the second sub-combining groove 1122 is correspondingly provided with a protrusion 115, and the groove 1217 and the protrusion 115 cooperate with each other. Figure 4 As shown, a protrusion 115 is provided on the cavity wall forming the first sub-combination groove 1121 and / or the second sub-combination groove 1122. Figure 9 and Figure 10 As shown, the wall surface of the first sub-connecting portion 1215 and / or the second sub-connecting portion 1216 is provided with a groove 1217. The shape, size, depth and position of the groove 1217 are corresponding to those of the protrusion 115. For example, if the groove 1217 is a circular groove, the protrusion 115 can be configured to be circular, which is not limited here.

[0039] While the input end 121 and the output end 111 are connected to each other, the protrusion 115 can be embedded in the groove 1217. During the assembly process, when the first sub-connecting portion 1215 and the second sub-connecting portion 1216 of the connecting portion 1211 are inserted into the first sub-combining groove 1121 and the second sub-combining groove 1122 of the output end 111, before the groove 1217 and the protrusion 115 come into contact and mate, the protrusion 115 can abut against at least one of the groove walls of the first sub-combining groove 1121 and the second sub-combining groove 1122, generating frictional resistance. As the connecting portion 1211 continues to be inserted, the protrusion 115 gradually approaches the groove 1217 until the protrusion 115 is completely embedded in the groove 1217. At this time, due to the shape adaptation of the protrusion 115 and the groove 1217, the two form a tightly fitting structure, the frictional resistance is greatly reduced, and the resistance during the insertion process drops sharply. The coordination of groove 1217 and protrusion 115 creates a distinct sense of progression during the connection process between input terminal 121 and output terminal 111. This arrangement not only facilitates the assembler's ability to sense the connection progress and determine whether the connection is properly installed, but also facilitates positioning and preventing loosening by interlocking protrusion 115 with groove 1217, thereby enhancing the stability and reliability of the connection between input terminal 121 and output terminal 111.

[0040] In the examples of this application, please refer to Figure 7, the width or length of the first sub-connecting portion 1215 and the second sub-connecting portion 1216 are different. At the same time, the first sub-connecting portion 1215 is arranged corresponding to the first sub-combining slot 1121, and the second sub-connecting portion 1216 is arranged corresponding to the first sub-combining slot 1121. As a result, the width or depth of the first sub-combining slot 1121 and the second sub-combining slot 1122 are different. Due to the different specifications of the two sub-connecting portions 1211, when performing the connection operation, if the first sub-connecting portion 1215 is aligned with the second sub-combining slot 1122, or the second sub-connecting portion 1216 is aligned with the first sub-combining slot 1121, an obstruction will occur due to the mismatch in size. Only the first sub-connecting portion 1215 can be inserted into the first sub-combining slot 1121, and the second sub-connecting portion 1216 can be inserted into the second sub-combining slot 1122. This helps to avoid installation misalignment due to incorrect insertion direction. This design effectively avoids connection errors caused by misoperation during the assembly process, reduces operational difficulty, allows for faster learning and lowers learning costs, improves the reliability of the connection structure and assembly efficiency, and ensures the stability and functionality of the connection during operation of the equipment or system.

[0041] Of course, the first sub-connection part 1215 and the second sub-connection part 1216 can also be configured into different shapes to eliminate the risk of incorrect insertion, such as the cross-section of the first sub-connection part 1215 and the first sub-combination groove 1121 is configured as a rectangle, and the cross-section of the first sub-connection part 1215 and the first sub-combination groove 1121 is configured as a trapezoid, which is not limited here.

[0042] In the examples of this application, please refer to Figure 5 as well as Figure 7 The sealing portion 1212 may include a first sub-sealing portion 1218 and a second sub-sealing portion 1219, which are spaced apart along the circumference of the joint portion 1213. Furthermore, the first sub-sealing portion 1218 and the second sub-sealing portion 1219 may be spaced apart at equal distances along the circumference of the joint portion 1213, i.e., the first sub-sealing portion 1218 and the second sub-sealing portion 1219 are located on the same diameter of the joint portion 1213. Alternatively, the first sub-sealing portion 1218 and the second sub-sealing portion 1219 may be spaced apart at different distances along the circumference of the joint portion 1213. An operating gap 1221 is defined between the first sub-sealing portion 1218 and the second sub-sealing portion 1219, and the operating gap 1221 communicates with the limiting groove 1214.

[0043] At least one of the first bend 1111 and the second bend 1112 is arranged corresponding to the operating gap 1221. When the first bend 1111 and the second bend 1112 are inserted into the limiting groove 1214, the operating gap 1221 can expose at least one of the first bend 1111 and the second bend 1112. This can provide an observation space for the assembler. During the assembly process, by directly observing the position and status of the exposed part, the assembler can accurately judge whether the first bend 1111 and the second bend 1112 have been plugged in, avoid incomplete connection, and ensure the accuracy and integrity of the connection. In addition, from the perspective of operational convenience, when performing the installation operation, the space formed by the operating gap 1221 provides an operating area for the installer's fingers. Specifically, the installer can insert their fingers into the operating gap 1221, pinch the first curved portion 1111 and the second curved portion 1112, and apply external force to cause the first curved portion 1111 and the second curved portion 1112 to move toward each other, thereby adapting the first curved portion 1111 and the second curved portion 1112 to the structure of the limiting groove 1214, making it easier to insert them into the limiting groove 1214. Furthermore, during the insertion process, the fingers can continuously push and abut the first curved portion 1111 or the second curved portion 1112 through the operating gap 1221. Compared to a structure without the operating gap 1221, this arrangement effectively reduces assembly resistance, improves assembly efficiency, and enhances operational convenience.

[0044] Furthermore, in some other cases, the sealing portion 1212 may be configured as an annular structure, and the coupling portion 1213 may be disposed within the sealing portion 1212 to form a retaining groove 1214. The first curved portion 1111 and the second curved portion 1112 may be inserted into the retaining groove 1214 and still abut against and retain the annular sealing portion 1212 to achieve a stable connection between the output end 111 and the input end 121, although this is not a limitation herein.

[0045] In one embodiment, see Figure 4The first sub-sealing portion 1218 and / or the second sub-sealing portion 1219 are provided with a sealing groove 1222, which is connected to the limiting groove 1214. The output end 111 is provided with a sealing ridge 1123, which is arranged around the first sub-combining groove 1121 and / or the second sub-combining groove 1122. Furthermore, the sealing ridge 1123 is arranged along the edges of the corresponding first sub-combining groove 1121 and second sub-combining groove 1122. At least a portion of the first curved portion 1111 and at least a portion of the second curved portion 1112 can be embedded in the limiting groove 1214, and the sealing ridge 1123 can be embedded in the sealing groove 1222. The sealing ridge 1123 can be tightly connected to the sealing groove 1222, which can prevent the medium from leaking from the seam between the output end 111 and the input end 121, thereby improving the sealing between the two. In addition, the sealing ridge 1123 may be elastic, that is, the sealing ridge 1123 may be configured as an elastic member, and the sealing ridge 1123 may be elastically connected to the groove wall forming the sealing groove 1222 to improve the sealing degree between the two.

[0046] The side surface of the first sub-sealing portion 1218 and / or the second sub-sealing portion 1219 is a guiding arc surface 1224. The cross-sectional shape of the guiding arc surface 1224 can be circular arc or non-circular arc, etc. The guiding arc surface 1224 can guide the first curved portion 1111 and the second curved portion 1112 to be inserted into the limiting groove 1214 in a direction close to each other. The guiding arc surface 1224 has a guiding function, which can guide the first curved portion 1111 and the second curved portion 1112 into the limiting groove 1214. This can enable the first curved portion 1111 and the second curved portion 1112 to enter the limiting groove 1214 through the side surfaces of the first sub-sealing portion 1218 and the second sub-sealing portion 1219, which is conducive to improving the success rate of inserting the first curved portion 1111 and the second curved portion 1112 into the limiting groove 1214 and reducing the difficulty of installation.

[0047] In addition, a snap-fit ​​groove is provided on the groove wall forming the limiting groove 1214, and snap-fit ​​portions are arranged on the side surfaces of the first curved portion 1111 and the second curved portion 1112. The snap-fit ​​portions can connect the snap-fit ​​grooves to prevent the first curved portion 1111 and the second curved portion 1112 from returning to their original state and generating elastic force, thereby detaching from the limiting groove 1214.

[0048] In the examples of this application, please refer to Figure 4The first bend 1111 and the second bend 1112 may both include a first section 1114 and a second section 1115. For ease of understanding, the following description will be based on the example of the first bend 1111 including the first section 1114 and the second section 1115. The first section 1114 extends along the central axis of the output end 111, and one end of the second section 1115 is connected to the first section 1114, and the other end is bent in a direction away from the central axis of the output end 111. The first sub-combination groove 1121 and the second sub-combination groove 1122 are provided in the second section 1115, but not in the first section 1114. The structural strength of the first section 1114 is greater. The first section 1114 can be inserted into the limiting groove 1214 and abut against the sealing portion 1212. The first section 1114 can effectively increase the bending moment resistance of the pipeline connector, avoid leakage of the medium or structural failure of the pipeline connector due to a slight lowering of the structure, and improve the structural reliability of the pipeline assembly 100.

[0049] In the examples of this application, please refer to Figure 5 as well as Figure 8 The pipe connector 110 is provided with a conducting portion 113. The conducting portion 113 may be a hollow structure. The conducting portion 113 may be configured to correspond to the coupling portion 1213. For example, if the coupling portion 1213 is a hollow cylindrical structure, the conducting portion 113 may also be configured to be a corresponding hollow cylindrical structure of the same size. The conducting portion 113 is in communication with the insertion space 1113. When the coupling portion 1213 is inserted into the insertion space 1113, the coupling portion 1213 may abut against the conducting portion 113, thereby ensuring a stable connection between the coupling portion 1213 and the conducting portion 113. Of course, by enabling at least a portion of the first curved portion 1111 and at least a portion of the second curved portion 1112 to limit and stop against the connecting portion 1211, the output end 111 and the input end 121 can also be tightly pressed against each other, so that a pre-tightening force can be generated between the coupling portion 1213 and the conducting portion 113, thereby improving the sealing connection effect between the pipeline connector 110 and the negative pressure suction component 120.

[0050] In one embodiment, see Figure 5The outer surface of the first section 1114 is provided with a first stop portion 114, and the first stop portion 114 can be configured as a convex structure. Further, the first stop portion 114 can be configured as an annular convex structure, and it is arranged around the outer surface of the first section 1114. The first stop portion 114 can be in limited contact with the sealing portion 1212. When the first stop portion 114 and the sealing portion 1212 are in contact, the coupling portion 1213 and the conductive portion 113 are in contact and connected. During the assembly process, as the coupling portion 1213 and the conductive portion 113 gradually approach and contact, the first stop portion 114 begins to contact the sealing portion 1212. Furthermore, the relative position and contact state between the first stop portion 114 and the sealing portion 1212 directly reflect the connection condition or process of the coupling portion 1213 and the conductive portion 113. That is, when the first stop portion 114 and the sealing portion 1212 abut against each other, the coupling portion 1213 and the conducting portion 113 abut against each other and communicate with each other. At least a portion of the first stop portion 114 and the sealing portion 1212 are exposed to the installer's field of view, allowing the installer to clearly observe the connection between the first stop portion 114 and the sealing portion 1212, thereby improving the assembly visualization of the pipe assembly 100 and ensuring that the pipe assembly 100 is properly assembled.

[0051] In another embodiment, please refer to Figure 5 The negative pressure suction member 120 is provided with a second stop portion 1223. The second stop portion 1223 can be integrally formed with the negative pressure suction member 120, such as integral injection molding, and is not limited. The second stop portion 1223 connects the sealing portion 1212 and the coupling portion 1213, and forms the bottom of the limiting groove 1214. The second stop portion 1223 can limit the abutment against the first curved portion 1111 and / or the second curved portion 1112. When the second stop portion 1223 and the sealing portion 1212 abut, the coupling portion 1213 and the conducting portion 113 abut and communicate. During the assembly process, as the coupling portion 1213 and the conducting portion 113 gradually approach and abut, the second stop portion 1223 begins to abut against the first curved portion 1111 and / or the second curved portion 1112. Furthermore, the relative position and contact state between the second stop portion 1223 and the first bend 1111 and / or the second bend 1112 directly reflect the connection status or process between the coupling portion 1213 and the conducting portion 113. At least a portion of the second stop portion 1223 and the first bend 1111 and / or the second bend 1112 is exposed to the field of view of the installer, who can clearly observe the connection status of the second stop portion 1223 and the first bend 1111 and / or the second bend 1112, thereby improving the assembly visualization of the pipe assembly 100 and ensuring that the pipe assembly 100 is properly assembled.

[0052] Of course, the first stop portion 114 and the second stop portion 1223 can be set at the same time, which can display the connection status between the negative pressure suction component 120 and the pipeline connector in multiple directions, which can more clearly and accurately obtain the installation status, and will not be elaborated here.

[0053] To achieve the above-mentioned and other related purposes, the present application provides an operating handle 200, see Figure 1 , the operating handle 200 includes the aforementioned pipe assembly 100. In this way, the operating handle 200 has the beneficial effects of any of the aforementioned solutions, which will not be repeated here.

[0054] To achieve the above-mentioned and other related purposes, the present application provides an endoscope 1, see Figure 1 The endoscope 1 includes the aforementioned operating handle 200. This enables the endoscope 1 to have the beneficial effects of any of the aforementioned solutions, which will not be described in detail here. The endoscope 1 can be a bronchoscope, pyeloscope, esophagoscope, gastroscope, enteroscope, otoscope, rhinoscope, oral scope, laryngoscope, colposcope, laparoscope, arthroscope, etc. The embodiment of the present application does not specifically limit the type of endoscope 1.

[0055] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0056] Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in reverse order depending on the functions involved. For example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Furthermore, features described with reference to certain examples may be combined in other examples.

[0057] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A pipe assembly for an endoscope, characterized in that: The pipeline assembly includes: A pipeline connector having an output end, wherein the output end is provided with a first bend and a second bend, wherein the first bend and the second bend are bent in directions away from each other; and A negative pressure suction piece, the negative pressure suction piece having an input end, the input end defining a limiting groove, the input end including a connecting portion disposed within the limiting groove, the input end further comprising a sealing portion and a coupling portion, the sealing portion and the coupling portion being spaced apart to form the limiting groove, the connecting portion being connected between the sealing portion and the coupling portion, an insertion space being formed between the first curved portion and the second curved portion, the coupling portion being capable of being inserted into the insertion space; In which, the output end is provided with a coupling groove, the connecting part and the coupling groove are arranged correspondingly, and the input end and the output end are connected to each other, and the connecting part is embedded in the coupling groove. When the input end and the output end are connected to each other, at least part of the first bent part and at least part of the second bent part can be embedded in the limiting groove and circumferentially positioned with the connecting part, and the first bent part and the second bent part bend in a direction toward each other and deform, so that the input end and the output end are limited, stopped and sealed.

2. The pipe assembly according to claim 1, wherein: The coupling groove includes a first sub-coupling groove and a second sub-coupling groove, wherein the first sub-coupling groove and the second sub-coupling groove are opened at the output end to divide the output end into the first curved portion and the second curved portion; The connecting part also includes a first sub-connecting part and a second sub-connecting part, which are located in the limiting groove and distributed along the circumference of the combining part. When the combining part can be inserted into the insertion space, the first sub-connecting part can be embedded in and close the first sub-combining groove, and the second sub-connecting part can be embedded in and close the second sub-combining groove.

3. The pipe assembly according to claim 2, wherein: At least one of the first sub-connecting portion and the second sub-connecting portion is provided with a groove, and at least one of the first sub-combining groove and the second sub-combining groove is correspondingly provided with a protrusion, the groove and the protrusion cooperate with each other, and the protrusion can be embedded in the groove while the input end and the output end are connected to each other; and / or, the first sub-connection portion and the second sub-connection portion have different widths or lengths; And / or, the sealing portion includes a first sub-sealing portion and a second sub-sealing portion, the first sub-sealing portion and the second sub-sealing portion are arranged at intervals along the circumference of the joint portion, an operating gap is provided between the first sub-sealing portion and the second sub-sealing portion, the operating gap is connected to the limiting groove, at least one of the first curved portion and the second curved portion is arranged corresponding to the operating gap, and when the first curved portion and the second curved portion are inserted into the limiting groove, the operating gap can expose at least one of the first curved portion and the second curved portion.

4. The pipe assembly according to claim 3, wherein: The first sub-sealing portion and / or the second sub-sealing portion are provided with a sealing groove, the sealing groove is communicated with the limiting groove, the output end is provided with a sealing ridge, the sealing ridge is arranged around the first sub-combining groove and / or the second sub-combining groove, at least part of the first curved portion and at least part of the second curved portion can be embedded in the limiting groove, and the sealing ridge can be embedded in the sealing groove.

5. The pipe assembly according to claim 4, wherein: The side surfaces of the first sub-sealing portion and / or the second sub-sealing portion are guide arc surfaces, and the guide arc surfaces can guide the first curved portion and the second curved portion to be embedded in the limiting groove in a direction of approaching each other.

6. The pipe assembly according to claim 1, wherein: The first curved portion and the second curved portion each include a first section and a second section. The first section extends along the central axis of the output end. One end of the second section is connected to the first section, and the other end is bent toward the central axis away from the output end.

7. The pipe assembly according to claim 6, wherein: The pipeline connector is provided with a conducting portion, which is communicated with the insertion space; wherein, The outer surface of the first section is provided with a first stop portion, which can be in limited contact with the sealing portion. When the first stop portion and the sealing portion are in contact, the coupling portion and the conducting portion contact and are connected. And / or, the negative pressure suction part is provided with a second stop portion, which connects the sealing portion and the combining portion and forms the bottom of the limiting groove. The second stop portion can limit the abutment against the first bending portion and / or the second bending portion. When the second stop portion and the sealing portion abut, the combining portion and the conducting portion abut against each other and are connected.

8. An operating handle, characterized in that: The invention comprises a pipeline assembly according to any one of claims 1 to 7.

9. An endoscope, characterized in that: Comprising the operating handle as claimed in claim 8.

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