A connecting structure, an endoscope handle, and an endoscope
By using a connecting structure to fix the pipe fittings inside the endoscope handle housing, the problems of unstable fixing and complex molding of the tee connectors are solved, achieving stable connection and simplifying the injection molding process, and adapting to installation inside complex handle housings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-19
AI Technical Summary
Existing methods for fixing the three-way connector in endoscopes are prone to delamination or complex molding, and are difficult to adapt to the complex installation environment inside the handle housing.
The device employs a connecting structure, including first and second connecting parts, which are detachably connected to the pipe fitting and the handle housing, respectively. The pipe fitting is fixed inside the handle housing through the connecting structure, which can be injection molded separately to adapt to the shape of the handle housing.
It improves the fixing stability and molding quality of pipe fittings, reduces injection molding difficulty, adapts to installation inside complex handle housings, and does not affect existing production processes.
Smart Images
Figure CN224369827U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of endoscope technology, specifically relating to a connecting structure, an endoscope handle, and an endoscope. Background Technology
[0002] Endoscopes, as medical devices, are increasingly widely used in the medical field. An endoscope generally consists of a handle and an insertion section. One end of the insertion section is fixed to the handle, and the other end is equipped with a camera module. The insertion section is inserted into the human body, and the camera module captures images of internal structures and lesions.
[0003] The insertion section has an instrument channel, through which surgical instruments can be used for surgery, and also for the introduction or extraction of fluids. The handle contains a tube that communicates with the instrument channel, and this tube is connected to components such as a tee connector.
[0004] In the prior art, components such as tee connectors are generally glued to the handle housing, or a positioning part is constructed on the tee connector. The positioning part is used to position and snap onto the handle housing. The positioning part and the tee connector are combined and pressed together by the housing to complete the fixation of the tee connector.
[0005] However, adhesive bonding solutions are prone to delamination. Setting a positioning part on the tee connector requires the positioning part to be integrally molded with the tee connector, which places high demands on mold making. In cases where the positioning part has a complex structure, there may even be a problem where the tee connector and the positioning part cannot be molded together. Utility Model Content
[0006] The purpose of this application is to provide a connecting structure, an endoscope handle, and an endoscope to solve the aforementioned technical problems existing in the prior art.
[0007] This application is implemented as follows:
[0008] In a first aspect, embodiments of this application provide a connecting structure for use in an endoscope. The connecting structure is used to be installed inside the handle housing of the endoscope. The connecting structure has a first connecting part and a second connecting part. The first connecting part is used to be detachably connected to a tube fitting inside the handle housing, and the second connecting part is used to be fixedly connected to the handle housing, so that the tube fitting can be fixed inside the handle housing through the connecting structure.
[0009] Secondly, embodiments of this application provide an endoscope handle, including the connecting structure provided in the first aspect embodiment.
[0010] Thirdly, embodiments of this application provide an endoscope, including the endoscope handle provided in the second aspect embodiment.
[0011] The technical solution provided in this application can achieve the following beneficial effects:
[0012] In this application, a connecting structure is used to connect the pipe fitting and the handle housing, fixing the pipe fitting inside the handle housing and completing the fixed installation of the pipe fitting. The connecting structure, handle housing, and pipe fitting are set separately. The connecting structure can be injection molded separately. Compared with the existing technology where the tee joint and positioning part are molded together, only the connecting structure is injection molded. The injection molding target is simplified, the molding quality is optimized, and the strength and other properties can be improved. Moreover, the shape of the connecting structure can also adapt to the internal shape of the handle housing, which can cope with the more complex installation environment inside the handle housing. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall structure of the connection structure provided in some embodiments of this application. Figure 1 ;
[0015] Figure 2 This is a schematic diagram of the overall structure of the connection structure provided in some embodiments of this application. Figure 2 ;
[0016] Figure 3 This is a schematic diagram showing the disassembly of the connection structure provided in some embodiments of this application. Figure 1 ;
[0017] Figure 4 This is a schematic diagram showing the disassembly of the connection structure provided in some embodiments of this application. Figure 2 ;
[0018] Figure 5 These are schematic diagrams illustrating the use of the connection structures provided in some embodiments of this application;
[0019] Figure 6 This application is about Figure 5 Detailed view of point A;
[0020] Figure 7 This is a schematic diagram illustrating the disassembly of the connecting structure and handle shell provided in some embodiments of this application. Figure 1 ;
[0021] Figure 8 This is a schematic diagram illustrating the disassembly of the connecting structure and handle shell provided in some embodiments of this application. Figure 2 ;
[0022] Figure 9 This is a schematic diagram of the structure of an endoscope provided in some embodiments of this application.
[0023] In the diagram: 100 - connecting structure, 110 - first housing, 120 - second housing, 130 - installation channel, 131 - limiting notch, 140 - first connector, 150 - sealing end, 160 - pressing part, 170 - threaded hole, 171 - threaded groove, 180 - second connector, 190 - abutting part, 200 - pipe fitting, 210 - limiting protrusion, 300 - handle housing, 310 - installation through hole, 320 - upper housing, 330 - lower housing. Detailed Implementation
[0024] The following description provides many different embodiments or examples for implementing various features of the present invention. The elements and arrangements described in the specific examples below are only for concise expression of the present invention and are merely examples, not intended to limit the present invention.
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0027] This application provides a connecting structure 100 for use in an endoscope. The connecting structure 100 is installed inside the handle housing 300 of the endoscope. The connecting structure 100 has a first connecting portion and a second connecting portion. The first connecting portion is detachably connected to a tubular connector 200 inside the handle housing 300, and the second connecting portion is fixedly connected to the handle housing 300. This allows the tubular connector 200 to be fixed inside the handle housing 300 via the connecting structure 100. (See reference...) Figure 5 and Figure 6 As shown.
[0028] The connecting structure 100 is an intermediate component, independently configured relative to the pipe fitting 200 and the handle housing 300, connecting between the two to fix the pipe fitting 200 inside the handle housing 300, thus completing the fixation of the pipe fitting 200. Simultaneously, the fixed connection points between the connecting structure 100 and the pipe fitting 200 and the handle housing 300 are fixed; the connecting structure 100 can position the installation location of the pipe fitting 200 and also provide support for the pipe fitting 200.
[0029] Since the connecting structure 100 is set independently, it can be injection molded separately. Compared with the existing technology where the tee joint and the positioning part are molded together, the connecting structure 100 provided in this application embodiment is injection molded separately, the injection molding target is simplified, the molding quality of the connecting structure 100 can be optimized, and the strength and other properties can be improved.
[0030] Furthermore, when dealing with the relatively complex installation environment within the handle shell 300, the separately injection-molded connecting structure 100 can be designed with a specific shape based on the shape of the handle shell 300. Due to the small injection molding target, even for a relatively complex connecting structure 100, the overall molding difficulty is lower. Compared to existing injection molding technologies, complex installation requirements can be met while reducing the overall molding difficulty of the connecting structure 100.
[0031] In addition, since the connecting structure 100 is set separately, the specific shape of the connecting structure 100 can be designed based on the pipe fitting 200 and handle shell 300 that it needs to connect, without modifying the existing structure of handle shell 300 and pipe fitting 200, and will not affect the normal production process of handle shell 300 and pipe fitting 200.
[0032] In this embodiment, the pipe fitting 200 communicates with the pipe within the handle housing 300, forming a stable channel. The pipe fitting 200 can be a tee fitting or a component such as a suction valve that needs to be fixed to the handle housing 300 and communicate with the pipe.
[0033] There are various ways to detachably connect the connecting structure 100 and the pipe fitting 200. In some embodiments, screws or other connectors can be used to directly fix the connecting structure 100 and the pipe fitting 200. Alternatively, the connecting structure 100 and the pipe fitting 200 can be snapped together and fixed with adhesive to improve the connection stability between the connecting structure 100 and the pipe fitting 200.
[0034] There are various ways to connect the connecting structure 100 and the handle shell 300. They can be fixed by screws or other connectors, or by plugging, snapping or other fixing methods, or other fixing structures. This application does not limit the specific connection structure between the connecting structure 100 and the handle shell 300.
[0035] In some embodiments of this application, the connecting structure 100 includes a first housing 110 and a second housing 120, as shown in the reference. Figures 1 to 3 As shown, the first housing 110 and the second housing 120 can be mated to form an installation channel 130, which is the first connecting part. The installation channel 130 is used for the pipe fitting connector 200 to pass through and is fixedly installed with the pipe fitting structure. The first housing 110 and the second housing 120 are detachably connected by the first connector 140.
[0036] The mounting channel 130 is the first connecting part that is fixedly connected to the pipe fitting 200. During assembly, the pipe fitting 200 passes through the mounting channel 130 and is fixed thereto, thus completing the fixation of the connecting structure 100 and the pipe fitting 200. The connecting structure 100 includes a first housing 110 and a second housing 120. When the two housings are joined together, they form the mounting channel 130. During joining, the pipe fitting 200 can be fixed at the mounting channel 130, simplifying the assembly of the connecting structure 100 and improving the ease of assembly between the connecting structure 100 and the pipe fitting 200. At the same time, the connecting structure 100 includes two housings, which is more conducive to adapting to the shape of the pipe fitting 200. The shape of the mounting channel 130 can be adapted to the shape of the pipe fitting 200, so that the outer peripheral wall of the pipe fitting 200 and the inner wall of the mounting channel 130 fit together, making it easy to fix the pipe fitting 200 in the mounting channel 130.
[0037] The first housing 110 and the second housing 120 are detachably connected. In practice, screws can be used to connect the two housings simultaneously to fix their positions.
[0038] The mounting channel 130 and the pipe fitting 200 are secured by using a pin to fix the pipe fitting 200 within the mounting channel 130. In other embodiments, a limiting notch 131 communicating with the outside can be provided on the inner wall of the mounting channel 130, as described in [reference needed]. Figures 1 to 4 As shown, the limiting notch 131 penetrates the pipe wall of the installation channel 130, connecting the interior of the installation channel 130 with the external environment. The limiting notch 131 is used to engage with the limiting protrusion 210 on the side wall of the pipe fitting joint 200. The limiting protrusion 210 can be referenced. Figure 7 As shown, the limiting protrusion 210 is a protruding structure on the side wall of the pipe fitting 200. During assembly, the limiting protrusion 210 is engaged in the limiting notch 131 to restrict the circumferential rotation and axial movement of the pipe fitting 200 relative to the installation channel 130.
[0039] By setting the limiting notch 131 and the limiting protrusion 210 together, when assembling the connecting structure 100 and the pipe fitting 200, it is only necessary to ensure that the first housing 110 and the second housing 120 are assembled to the appropriate positions on the pipe fitting 200, so that the limiting protrusion 210 can be engaged in the limiting notch 131, and the installation channel 130 and the pipe fitting 200 can be fixed at the same time as the connecting structure 100 is assembled.
[0040] The limiting protrusion 210 can be a protrusion that already exists on the pipe fitting 200 itself, and the limiting notch 131 is set according to the position and shape of the protrusion. In other embodiments, the protrusion can also be additionally fixed to the pipe fitting 200. Alternatively, the limiting protrusion 210 can be directly injection molded during the injection molding process of the pipe fitting 200.
[0041] The pipe fitting 200 is mounted on the handle housing 300. In some embodiments, the handle housing 300 is provided with a mounting through hole 310 for the pipe fitting 200 to pass through. A portion of the pipe fitting 200 passes through the mounting through hole 310, while a portion of the pipe fitting 200 is exposed outside the handle housing 300 and communicates with external pipe fittings. The configuration of the mounting through hole 310 on the handle housing 300 can be found in [reference needed]. Figure 7 and Figure 8 As shown, when the pipe fitting 200 is inserted into the mounting through hole 310, a gap exists between the peripheral sidewall of the pipe fitting 200 and the inner wall of the mounting through hole 310. This gap facilitates the insertion of the pipe fitting 200 into the through hole. However, the gap can cause the pipe fitting 200 to be unstable during installation, and external impurities can easily enter the handle housing 300 through the gap. In related technologies, a corresponding sealing structure is formed on the pipe fitting 200 to seal this gap.
[0042] In some embodiments provided in this application, the connecting structure 100 includes a sealing end 150, which is used to seal the gap between the inner wall of the mounting through hole 310 on the handle housing 300 through which the pipe fitting 200 passes and the peripheral sidewall of the pipe fitting 200. While fixing the pipe fitting 200 to the handle housing 300, the connecting structure 100 can also seal the gap, preventing external impurities from falling into the handle housing 300. Simultaneously, the pipe fitting 200 is fixedly connected to the connecting structure 100, and the gap between the peripheral sidewall of the pipe fitting 200 and the inner wall of the mounting through hole 310 will not affect the installation stability of the pipe fitting 200.
[0043] Furthermore, in the embodiments provided in this application, the sealing end 150 is directly provided on the connecting structure 100, without the need to additionally injection mold the sealing structure on the pipe fitting joint 200. The injection molding of the pipe fitting joint 200 is simpler and helps to improve the injection molding quality of the pipe fitting joint 200.
[0044] In some preferred embodiments, the connecting structure 100 is provided with an installation channel 130, which serves as a first connecting portion. The installation channel 130 is used for the pipe fitting 200 to pass through and is fixedly connected to the pipe fitting 200. The sealing end 150 is a portion of the connecting structure 100 surrounding one end opening of the installation channel 130. (Refer to...) Figures 1 to 4 As shown. During the assembly of the pipe fitting 200 into the handle housing 300, when the connecting structure 100 simultaneously fixes the pipe fitting 200 and the handle housing 300, the sealing end 150 is located at the mounting through hole 310 on the handle housing 300, sealing the gap between the mounting through hole 310 and the pipe fitting 200, simplifying the assembly operation. Simultaneously, the sealing end 150 surrounds the mounting channel 130, that is, it surrounds the pipe fitting 200, making the structure of the sealing end 150 more stable and improving the sealing effect on the gap. Integrating the sealing end 150 and the mounting channel 130 minimizes the overall volume of the connecting structure 100, preventing the connecting structure 100 from being too large and affecting the installation of other components inside the handle housing 300.
[0045] In some embodiments provided in this application, the connecting structure 100 includes a pressing portion 160, as shown in the reference. Figures 1 to 4 As shown. The handle housing 300, which is fixedly connected to the second housing 120, includes an upper housing 320 and a lower housing 330, as can be seen from [reference]. Figure 8 As shown, the second connecting portion of the connecting structure 100 is used to fix it to one of the upper housing 320 and the lower housing 330, and the pressing portion 160 is used to press against the inner wall of the other of the upper housing 320 and the lower housing 330.
[0046] The upper housing 320 and the lower housing 330 of the handle housing 300 are connected together. The connecting structure 100 is fixed to one of them and abuts against the other, which improves the positional stability of the connecting structure 100 in the handle housing 300 and enhances the installation reliability of the connecting structure 100 to the pipe fitting 200.
[0047] The pressure between the pressing part 160 and the inside of the handle housing 300 can be direct or indirect. Direct pressure is defined as the pressing part 160 directly contacting the inner wall of the handle housing 300. Direct pressure places high demands on the shape of the connecting structure 100. In the connecting structure 100, not only does the second connecting part need to adapt to the shape of the handle housing 300, but the pressing part 160 also needs to adapt to the shape of the handle housing 300.
[0048] Indirect pressure occurs when the pressure part 160 and the handle housing 300 are pressed together by other components. In some embodiments, refer to... Figures 5 to 7As shown, an abutment member 190 is fixedly connected to the pressing part 160, and the abutment member 190 abuts against the inner wall of the handle housing 300. The abutment member 190 can be additionally fixed to the pressing part 160, and the length of the abutment member 190 and its specific connection position in the connecting structure 100 can be set according to the specific shape of the handle housing 300, providing greater flexibility. (Reference) Figure 6 As shown, the pressing part 160 is connected to the abutting member 190, which abuts against the inner wall of the handle housing 300.
[0049] In some embodiments of this application, the connecting structure 100 is provided with a threaded hole 170, and a second connector 180 is threadedly connected to the threaded hole 170, as shown in the reference. Figures 1 to 4 As shown, the threaded hole 170 and the second connector 180 are the second connecting parts, and the second connector 180 is used for fixed connection with the handle housing 300. The second connector 180 is threadedly connected to the threaded hole 170 and fixed to the handle housing 300 to fix the connecting structure 100 to the handle housing 300. (See reference...) Figure 6 As shown, the second connector 180 is also threaded to the handle housing 300, and the handle housing 300 is provided with an installation position corresponding to the second connector 180.
[0050] In some preferred embodiments, the connecting structure 100 includes two parts: a first housing 110 and a second housing 120. The first housing 110 and the second housing 120 can be joined to form an installation channel 130, which is a first connecting part. The installation channel 130 is used for the pipe fitting 200 to pass through and is fixedly installed with the pipe fitting 200. In the case where the first housing 110 and the second housing 120 are detachably connected by a first connector 140, the opposing surfaces of the first housing 110 and the second housing 120 are each provided with a threaded groove 171. The two threaded grooves 171 join to form a threaded hole 170. (See reference...) Figure 4 As shown.
[0051] When the second connector 180 connects to the threaded hole 170, it also connects to the first housing 110 and the second housing 120, stably fixing both the first housing 110 and the second housing 120 to the handle housing 300. Meanwhile, the threaded hole 170 is positioned closer to the first connector 140 than the mounting channel 130. The threaded hole 170 is formed by the mating of two threaded grooves 171. The mating of the two threaded grooves 171 is due to the first connector 140 fixing the first housing 110 and the second housing 120 together. Therefore, positioning the threaded hole 170 closer to the first connector 140 makes the structure of the threaded hole 170 formed by the mating of the threaded grooves 171 more stable, thereby optimizing the fixing connection effect of the second connector 180 on the connecting structure 100 and the handle housing 300.
[0052] In some embodiments, the area of the connecting structure 100 other than the first connector 140 and the second connector 180 can be injection molded with transparent material. Transparent material makes it easier to observe whether the connecting structure 100 is properly aligned with the handle housing 300 and the pipe fitting 200, and makes it easier to determine whether the assembly meets the standards and is reliable during the assembly process.
[0053] This application embodiment also provides an endoscope handle, including the connecting structure 100 provided in any of the above embodiments, and a handle housing 300. The connecting structure 100 is installed inside the handle housing 300, and other components, such as tubes, traction wheels, etc., are also installed inside the handle housing 300.
[0054] This application provides an endoscope, for reference... Figure 9 As shown, it includes the endoscope handle provided in the above embodiments.
[0055] The endoscopes involved in the embodiments of this application may be bronchoscopes, pyeloscopes, esophagoscopes, gastroscopes, colonoscopes, otoscopes, rhinoscopes, oral endoscopes, laryngoscopes, colposcopes, laparoscopes, arthroscopes, etc. The embodiments of this application do not specifically limit the types of endoscopes.
[0056] It should be noted that, in this document, 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.
[0057] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A connecting structure for use in an endoscope, characterized in that, The connecting structure (100) is used to be installed into the handle housing (300) of the endoscope. The connecting structure (100) has a first connecting part and a second connecting part. The first connecting part is used to be detachably connected to the pipe fitting (200) inside the handle housing (300). The second connecting part is used to be fixedly connected to the handle housing (300), so that the pipe fitting (200) can be fixed to the inside of the handle housing (300) through the connecting structure (100).
2. The connection structure according to claim 1, characterized in that, The connecting structure (100) includes a first housing (110) and a second housing (120). The first housing (110) and the second housing (120) can be mated to form an installation channel (130). The installation channel (130) is the first connecting part. The installation channel (130) is used for the pipe fitting (200) to pass through and is fixedly installed with the pipe fitting (200). The first housing (110) and the second housing (120) are detachably connected by a first connector (140).
3. The connection structure according to claim 2, characterized in that, The inner wall of the installation channel (130) is provided with a limiting notch (131) that communicates with the outside. The limiting notch (131) is used to engage with the limiting protrusion (210) on the side wall of the pipe fitting joint (200).
4. The connection structure according to claim 1, characterized in that, The connecting structure (100) includes a sealing end (150) for sealing the gap between the inner wall of the mounting through hole (310) on the handle housing (300) through which the fitting (200) passes and the peripheral side wall of the fitting (200).
5. The connecting structure according to claim 4, characterized in that, The connecting structure (100) is provided with an installation channel (130), which is the first connecting part. The installation channel (130) is used for the pipe fitting (200) to pass through and is fixedly installed with the pipe fitting (200). The sealing end (150) is the part of the connecting structure (100) around one of the end openings of the installation channel (130).
6. The connection structure according to claim 1, characterized in that, The connecting structure (100) includes a pressing part (160), and the handle shell (300) fixedly connected to the second connecting part includes an upper shell (320) and a lower shell (330). The second connecting part is used to fix to one of the upper shell (320) and the lower shell (330), and the pressing part (160) is used to press against the inner wall of the other of the upper shell (320) and the lower shell (330).
7. The connection structure according to claim 1, characterized in that, The connecting structure (100) is provided with a threaded hole (170), and a second connector (180) is threadedly connected in the threaded hole (170). The threaded hole (170) and the second connector (180) are the second connecting part, and the second connector (180) is used to fix it to the handle shell (300).
8. A connecting structure according to claim 7, characterized in that, The connecting structure (100) includes a first housing (110) and a second housing (120). The first housing (110) and the second housing (120) can be mated to form an installation channel (130). The installation channel (130) is the first connecting part. The installation channel (130) is used for the pipe fitting (200) to pass through and is fixedly installed with the pipe fitting (200). The first housing (110) and the second housing (120) are detachably connected by a first connector (140). The first housing (110) and the second housing (120) are provided with threaded grooves (171) on their opposing surfaces. The two threaded grooves (171) are joined to form the threaded hole (170), and the threaded hole (170) is located closer to the first connector (140) than the mounting channel (130).
9. An endoscope handle, characterized in that, Includes the connecting structure (100) as described in any one of claims 1-8.
10. An endoscope, characterized in that, Includes the endoscope handle as described in claim 9.