Tube end device, handle and endoscope

Abstract

This application discloses a tube end device, a handle, and an endoscope, relating to the field of medical device technology. The tube end device disclosed in this application is used as a handle for an endoscope. The tube end device has a main body and a connector connected to the main body. The connector has a mating channel for installing a corresponding tube inside the handle, and the mating channel communicates with the inner cavity of the main body so that the installed tube communicates with the inner cavity. The circumferential sidewall of the connector has an injection hole communicating with the mating channel for injecting adhesive into the mating channel; the injection hole is a strip-shaped hole. This solution can at least address the problem of easy detachment between the tube and the corresponding tube end device.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a tube end device, a handle, and an endoscope. Background Technology

[0002] With the continuous development of medical technology, endoscopes have been widely used in the diagnosis and treatment of diseases. When using an endoscope, tissue instruments can be inserted through the internal channel, and surgery can be performed by extending the instrument port at the distal end of the insertion section, or the patient's body fluids can be aspirated from the instrument port and discharged through the internal channel.

[0003] In related technologies, the internal channel of an endoscope typically consists of an instrument tube, connector, suction tube, and suction valve. The instrument tube and suction tube are usually bonded and fixed to their respective end devices (connectors or suction valves) to achieve a reliable connection. However, in practice, these components can still easily detach from their corresponding end devices. Utility Model Content

[0004] This application provides a tube end device, a handle, and an endoscope, which can at least solve the problem of easy detachment between the tube and the corresponding tube end device.

[0005] In a first aspect, embodiments of this application provide a tube-end device for an endoscope handle.

[0006] The tube end device has a main body and a connector connected to the main body. The connector has a mating channel for installing the corresponding tube inside the handle, and the mating channel communicates with the inner cavity of the main body so that the installed tube communicates with the inner cavity. The circumferential side wall of the connector has an injection hole communicating with the mating channel for injecting adhesive into the mating channel, and the injection hole is a strip-shaped hole.

[0007] In some embodiments, the tube end device includes a glue injection hole extending circumferentially along the connector.

[0008] In some embodiments, the tube end device includes a glue injection hole extending axially along the connector.

[0009] In some embodiments, the tube end device includes a glue injection hole that extends axially helically around the joint.

[0010] In some embodiments, the tube end device includes an attachment protrusion on its outer wall, the tube end device being positioned and mounted on the handle housing via the attachment protrusion; in the circumferential direction of the connector, the glue injection hole and the attachment protrusion at least partially correspond to each other.

[0011] In some embodiments, the tube end device includes a glue injection hole corresponding to the first end of the docking channel, wherein the first end of the docking channel is the end of the docking channel opposite to its insertion end.

[0012] In some embodiments, the through area of ​​the dispensing hole gradually decreases or increases along the direction from the inlet to the outlet of the dispensing hole.

[0013] In some embodiments, the mating channel is a circular hole, and the central angle of the outlet of the glue injection hole corresponding to the mating channel is greater than 180°.

[0014] In some embodiments, the tube end device includes injection holes arranged opposite each other on both radial sides of the mating channel.

[0015] In some embodiments, the end device is a connector or a suction valve.

[0016] Secondly, embodiments of this application provide a handle that includes the tube-end device described in the first aspect of this application.

[0017] Thirdly, embodiments of this application provide an endoscope including an insertion part and a handle as described in the second aspect of this application, the handle being connected to the insertion part.

[0018] The technical solution adopted in this application can achieve the following beneficial effects:

[0019] In the tube-end device disclosed in this application embodiment, a glue injection hole communicating with a mating channel is provided on its circumferential sidewall for injecting glue into the mating channel. Based on this structural layout, firstly, the glue injected through the glue injection hole can flow into the space between the tube and the wall of the mating channel, filling the glue void area originally formed on the tube due to the glue on its outer circumference being scraped away by the port edge of the mating channel, thereby optimizing the bonding quality between the tube and the corresponding tube-end device.

[0020] Secondly, due to the presence of the injection hole, the adhesive in the gap between the fitting and the mating channel and the adhesive in the injection hole are connected as a whole and adhere to each other, which can provide more reliable bonding performance.

[0021] Thirdly, since the injection hole is a strip-shaped hole with a certain extension length on the side wall of the joint, more of the outer wall of the pipe can be exposed. At the same time, the gap between the pipe and the hole wall of the mating channel can be connected with the injection hole over a larger area. This makes it easier for the adhesive to flow into the gap between the pipe and the hole wall of the mating channel to fill the adhesive voids, thereby optimizing the bonding quality between the pipe and the corresponding pipe end device.

[0022] Fourth, the strip-shaped injection holes allow the fittings to have a larger exposed area. When using UV adhesive, this structural layout will result in a larger light-illuminated area. Compared to irradiating only the area between the fitting and the hole wall, this will significantly improve the curing efficiency of the adhesive and enhance the bonding quality.

[0023] Compared with related technologies, the pipe end device provided in this application embodiment can effectively improve the bonding quality between it and the corresponding pipe fitting, thereby preventing the two from separating. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0025] In the attached diagram:

[0026] Figure 1 These are isometric views of endoscopes disclosed in some embodiments of this application;

[0027] Figure 2 This is a schematic diagram illustrating the mating relationship between the connector and the housing as disclosed in some embodiments of this application;

[0028] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0029] Figure 4 This is an isometric view of the connector disclosed in the first embodiment of this application;

[0030] Figure 5 This is a front view of the connector disclosed in the first embodiment of this application;

[0031] Figure 6 for Figure 5 Sectional view along the BB direction;

[0032] Figure 7 This is an isometric view of the connector disclosed in the second embodiment of this application;

[0033] Figure 8 This is a front view of the connector disclosed in the second embodiment of this application;

[0034] Figure 9 for Figure 8 A cross-sectional view along the CC direction;

[0035] Figure 10 This is a cross-sectional view of the connector disclosed in the third embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10-Handle, 20-Insertion part

[0038] 100-Housing, 200-Connector, 210-Body, 211-Suction Interface, 212-Instrument Insertion, 220-Connector, 220a-Mating Channel, 220b-Injection Hole, 230-Attachment Protrusion, 300-Instrument Tube, 400-Suction Valve. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0040] In various embodiments of this application, "proximal end" and "distal end" refer to the position of the endoscope and its accessories relative to the user in the usage environment. 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".

[0041] To facilitate understanding of the tube-end device, handle, and endoscope provided in the embodiments of this application, the relevant technologies will first be introduced in conjunction with the application scenarios below.

[0042] Regarding the issue of detachment between instrument tubes and their corresponding end devices, the inventors discovered through research that this is primarily due to the ineffective bonding between the tubes and end devices. Specifically, taking the assembly of instrument tubes and connectors as an example, the instrument tube typically needs to be inserted into the mating channel of the connector to communicate with the connector's internal cavity, thus creating a passage between the instrument tube and the connector's instrument port, as well as between the instrument tube, connector, suction tube, and suction valve. However, during the insertion of the instrument tube into the mating channel, the adhesive on the outside of the instrument tube is scraped away by the edge of the mating channel's port, resulting in insufficient adhesive between the instrument tube and the wall of the mating channel, leading to ineffective bonding and ultimately causing detachment between the tube and its corresponding end device.

[0043] In view of this, some embodiments of this application provide a tube end device for an endoscope handle.

[0044] Please see Figures 1-10 The tube end device disclosed in this application embodiment has a main body 210 and a connector 220 connected to the main body 210. The connector 220 has a mating channel 220a, which is used to install the corresponding tube inside the handle 10. The mating channel 220a communicates with the inner cavity of the main body 210 so that the installed tube communicates with the inner cavity. The circumferential sidewall of the connector 220 has an injection hole 220b that communicates with the mating channel 220a for injecting adhesive into the mating channel 220a. The injection hole 220b is a strip-shaped hole.

[0045] Regarding the tube end device, the embodiments of this application do not limit its specific type. For example, the tube end device can be a connector 200 or a suction valve 400. Of course, any component on the endoscope handle 10 used to connect with the tube and form a channel is a tube end device. For example, the endoscope handle 10 can be attached to a reservoir for storing disinfectant, and the reservoir can be connected to a tube for spraying disinfectant. In this case, the reservoir is a tube end device.

[0046] In the embodiments of this application, the docking channel 220a communicates with the inner cavity of the body 210. Thus, after the fitting is inserted into the docking channel 220a, the channel within the fitting communicates with the inner cavity of the body 210, forming part of the internal channel of the endoscope. For example, as... Figure 2 , Figure 3 and Figure 5 As shown, after the instrument tube 300 is connected to the inner cavity of the connector 200, the instrument port 212 of the connector 200 is connected to the instrument tube 300, so that tissue instruments can be inserted into the instrument tube 300; if the connector 200 is a multi-port connector (such as a three-port connector), that is, the connector 200 can also be connected to the suction tube through the suction port 211, so that body fluid can be aspirated and drained through the instrument tube 300, the connector 200 and the suction tube; after the suction tube is connected to the suction valve 400, the suction tube, the suction valve 400 and the negative pressure connection port are connected in sequence, so that body fluid can be drained from the endoscope through the suction tube, the suction valve 400 and the negative pressure connection port.

[0047] Regarding the injection hole 220b, it is opened on the circumferential side wall of the connector 220. Since it is connected to the mating channel 220a, after the pipe is inserted into the mating channel 220a and installed in place, the pipe is exposed through the injection hole 220b. Therefore, with this layout, not only can adhesive be applied to the outer circumference of the fitting at the initial stage of assembly, but after the fitting is inserted into the mating channel 220a, adhesive will remain between the fitting and the wall of the mating channel 220a, achieving bonding between the two. At the same time, adhesive can be injected into the mating channel 220a through the injection hole 220b. The added adhesive will flow into the space between the fitting and the wall of the mating channel 220a. The adhesive in the gap between the fitting and the mating channel 220a and the adhesive in the injection hole 220b are connected as a whole and bonded together, providing more reliable bonding performance, thus bonding the fitting, the wall of the mating channel 220a, and the wall of the injection hole 220b together.

[0048] It is worth noting that, compared to the method of simply applying adhesive to the outer circumference of the fitting before installation into the mating channel 220a, the embodiment of this application injects adhesive into the space between the fitting and the wall of the mating channel 220a through the injection hole 220b. This fills the adhesive voids that would have been created when the adhesive on the outer circumference of the fitting was scraped away by the edge of the mating channel 220a, thereby optimizing the bonding quality between the fitting and the corresponding end device. Simultaneously, the injection hole 220b acts as a new space for retaining adhesive, and the adhesive inside bonds the wall of the injection hole 220b, the fitting, and the wall of the mating channel 220a together, increasing the bonding area and further enhancing the bonding quality.

[0049] In the embodiments of this application, the injection hole 220b is a strip-shaped hole, that is, the injection hole 220b has a certain extension length on the side wall of the connector 220. In this way, more of the outer wall of the pipe can be exposed, and the gap between the pipe and the hole wall of the mating channel 220a can be connected with the injection hole 220b over a larger area. This facilitates the flow of adhesive into the gap between the pipe and the hole wall of the mating channel 220a to fill the adhesive gap, thereby optimizing the bonding quality between the pipe and the corresponding pipe end device.

[0050] Furthermore, the strip-shaped injection holes 220b provide a larger exposed area for the fittings. When using UV adhesive, this structural layout will result in a larger light-illuminated area. Compared to illuminating only the area between the fitting and the hole wall of the mating channel 220a, this will significantly improve the curing efficiency of the adhesive and enhance the bonding quality.

[0051] In the embodiments of this application, the specific extension direction of the injection hole 220b is not limited.

[0052] For example, such as Figure 2 , Figure 3 and Figure 5 As shown, the tube end device includes a glue injection hole 220b extending circumferentially along the connector 220, which particularly enhances the bonding quality of the tube in the circumferential direction. Additionally, in the case where the tube end device is a multi-port connector, such as... Figure 5 As shown, connector 200 has an attraction interface 211, which occupies the axial layout space of connector 200. To accommodate the small axial dimension of connector 220, a glue injection hole 220b extending circumferentially is provided on connector 220.

[0053] For example, such as Figure 7 and Figure 8As shown, the pipe end device includes an injection hole 220b extending axially along the connector 220, which particularly enhances the axial bonding quality of the pipe fitting. Furthermore, when the pipe end device is a connector 200, and the connector 200 does not have a suction interface 211, its connector 220 can be configured with a larger axial dimension, thereby opening a longer injection hole 220b in its axial direction to further enhance the bonding quality. In addition, it is important to note that this arrangement ensures that the injection hole 220b extends in the insertion direction of the pipe fitting relative to the pipe end device. This reduces the scraping area of ​​the hole wall of the mating channel 220a relative to the pipe fitting during insertion, thereby reducing wear on the pipe fitting and optimizing assembly efficiency.

[0054] For example, the pipe end device includes an injection hole 220b that extends axially around the connector 220. With this arrangement, the injection hole 220b has a certain extension length in each direction, which can simultaneously enhance the bonding quality of the pipe in each direction.

[0055] In some embodiments, such as Figures 2-5 , Figure 7 and Figure 8 As shown, the tube end device includes an attachment protrusion 230 on its outer wall. The tube end device is positioned and mounted on the housing 100 of the handle 10 through the attachment protrusion 230 to optimize the assembly reliability of the tube end device on the housing 100.

[0056] Furthermore, in the circumferential direction of the connector 220, the injection hole 220b at least partially corresponds to the attachment protrusion 230. For example... Figure 7 and Figure 8 As shown, the injection hole 220b and the attachment protrusion 230 are partially corresponding in the circumferential direction, although they can also be completely corresponding to each other.

[0057] It should be understood that opening a glue injection hole 220b on the circumferential sidewall of the connector 220 will reduce the strength of the area of ​​the tube end device corresponding to the connector 220. In this example, through the above structural layout, the attachment protrusion 230 increases the solid structure on the connector 220 corresponding to the glue injection hole 220b in the circumferential direction, thereby making up for the strength defect caused by opening the glue injection hole 220b to a certain extent. At the same time, since the attachment protrusion 230 is the attachment structure between the tube end device and the housing 100 of the handle 10, there is no need to set an additional reinforcing structure on the connector 220. Therefore, in this example, the strength of the connector 220 of the tube end device is improved, and the structure is simplified.

[0058] In some embodiments, such as Figure 7 and Figure 8As shown, the tube end device includes an injection hole 220b corresponding to the first end of the mating channel 220a, the first end of which is the end of the mating channel 220a facing away from its insertion end. It should be understood that during the insertion of the tube into the mating channel 220a of the connector 220, the closer to the port of the tube, the longer the path for the adhesive to be scraped on the outer circumference of the tube. Therefore, after the tube is installed in place within the mating channel 220a, the adhesive on the side of the tube closest to its port is usually the least. The insertion end of the mating channel 220a refers to the end of the mating channel 220a into which the tube is inserted.

[0059] In this example, the first end of the mating channel 220a corresponds to one end of the pipe fitting. With this layout, the glue injection hole 220b can be used to apply glue to the area where the best glue is reserved due to the scraping during the insertion process. That is, glue is applied to the area where the pipe fitting and the pipe end device are most likely to separate due to glue failure, thereby effectively preventing the pipe fitting and the pipe end device from separating.

[0060] In some embodiments, such as Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, the through area of ​​the injection port 220b gradually decreases from its inlet to its outlet. It should be understood that, as a precision medical device, the endoscope's end-piece components (such as the connector 200 and suction valve 400) in its handle 10 are relatively small. In this arrangement, the opening area of ​​the injection port 220b's inlet can be larger, which facilitates the injection of adhesive into the injection port 220b, reduces the difficulty of the injection operation, improves the accuracy of injecting adhesive into the injection port 220b, and avoids adhesive waste.

[0061] In some embodiments, such as Figure 10 As shown, the through area of ​​the injection hole 220b gradually increases from its inlet to its outlet. It should be understood that with this layout, the area closer to the outlet of the injection hole 220b has a larger open area, creating a gap between the hole wall of the injection hole 220b and the fitting. This gap is connected to the gap between the fitting and the hole wall of the mating channel 220a. Therefore, during the process of applying adhesive through the injection hole 220b, the adhesive can easily flow along the gap between the hole wall of the injection hole 220b and the fitting into the gap between the fitting and the hole wall of the mating channel 220a, thus filling the adhesive voids between the fitting and the hole wall of the mating channel 220a and effectively improving the bonding quality.

[0062] In some embodiments, such as Figure 5 and Figure 6As shown, the mating channel 220a is a circular hole, and the central angle α of the outlet of the glue injection hole 220b corresponding to the mating channel 220a is greater than 180°. It should be understood that the glue injection hole 220b is connected to the mating channel 220a. After glue is added through the glue injection hole 220b, the glue will flow into the gap between the fitting and the hole wall of the mating channel 220a. In this example's structural layout, the opening formed by the glue injection hole 220b and the mating channel 220a will expose the gap between the fitting and the hole wall of the mating channel 220a on the side of the fitting facing away from the glue injection hole 220b. Figure 6 In this design, the injection hole 220b is exposed outside the gap between the lower side of the fitting and the wall of the mating channel 220a. This makes it easier for the adhesive to flow into the gap between the lower side of the fitting and the wall of the mating channel 220a, thereby filling the adhesive voids in the gap and effectively improving the bonding quality.

[0063] In some embodiments, the tube end device includes glue injection holes 220b arranged opposite each other on both radial sides of the mating channel 220a. With this arrangement, after the tube is inserted into the mating channel 220a, glue can be applied to both radial sides of the mating channel 220a. This ensures that the glue gaps between the tube and the hole walls of the mating channel 220a are filled with glue, thereby optimizing the bonding quality. Of course, this structural layout also creates a glue application area around the tube, further increasing the bonding area and thus optimizing the bonding quality.

[0064] Of course, the embodiments of this application do not limit the specific number of glue injection holes 220b on the pipe segment device, which can be three, four, etc.

[0065] Please see Figures 1-10 Furthermore, embodiments of this application also provide a handle 10, which includes the tube-end device mentioned in any of the foregoing solutions. Thus, the handle 10 possesses the beneficial effects of the aforementioned tube-end device, which will not be elaborated upon here.

[0066] Please see Figures 1-10 Some embodiments of this application provide an endoscope including an insertion portion 20 and a handle 10 as mentioned in any of the foregoing embodiments, wherein the handle 10 is connected to the insertion portion 20. Thus, the endoscope possesses the beneficial effects of the aforementioned handle 10, which will not be elaborated further.

[0067] 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.

[0068] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0069] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A tube end device for a handle of an endoscope, characterized by, The tube end device has a main body and a connector connected to the main body. The connector has a mating channel for installing a corresponding tube inside the handle. The mating channel communicates with the inner cavity of the main body so that the installed tube communicates with the inner cavity. The circumferential sidewall of the joint is provided with an injection hole that communicates with the mating channel for injecting adhesive into the mating channel, and the injection hole is a strip-shaped hole.

2. The pipe end device according to claim 1, characterized in that The tube end device includes a glue injection hole extending circumferentially along the joint; and / or, the tube end device includes a glue injection hole extending axially along the joint; and / or, the tube end device includes a glue injection hole extending helically around the joint.

3. The pipe end device according to claim 1, characterized in that, The tube end device includes an attachment protrusion on its outer wall, and the tube end device is positioned and installed on the housing of the handle through the attachment protrusion; in the circumferential direction of the connector, the glue injection hole and the attachment protrusion correspond at least partially to each other.

4. The pipe end device according to claim 1, characterized in that, The tube end device includes a glue injection hole corresponding to the first end of the docking channel, wherein the first end of the docking channel is the end of the docking channel that is away from its insertion end.

5. The pipe end device according to claim 1, characterized in that, Along the direction from the inlet to the outlet of the glue injection hole, the through area of ​​the glue injection hole gradually decreases or increases.

6. The pipe end device according to any one of claims 1 to 5, characterized in that The docking channel is a circular hole, and the central angle of the outlet of the glue injection hole corresponding to the docking channel is greater than 180°.

7. The pipe end device according to any one of claims 1 to 5, characterized in that, The tube end device includes the glue injection holes arranged opposite each other on both radial sides of the mating channel.

8. The pipe end device according to any one of claims 1 to 5, characterized in that, The tube end device is a connector or a suction valve.

9. A handle characterized in that Includes the tube-end device according to any one of claims 1 to 8.

10. An endoscope characterized by comprising: It includes an insertion part and a handle as described in claim 9, wherein the handle is connected to the insertion part.

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