Endoscope cleaning assembly

Abstract

The embodiment of the invention provides an endoscope cleaning assembly which comprises at least one auxiliary connector, the auxiliary connector comprises a body and a limiting structure, the body is provided with at least one endoscope interface and at least one cleaning interface, and the endoscope interface is in fluid communication with the cleaning interface. The endoscope connector is used for being detachably connected with an endoscope, the cleaning connector is used for leading in or leading out cleaning liquid, and the limiting structure is arranged on the body and used for limiting relative movement of the body and the endoscope. The endoscope cleaning assembly provided by the embodiment of the invention is simple in structure, relatively low in cost and relatively convenient to operate.

Description

Technical Field

[0001] Embodiments of this application relate to the field of medical device technology, and more particularly to an endoscope cleaning assembly. Background Technology

[0002] An endoscope is a commonly used instrument in the medical and health fields to examine and diagnose internal organs and tissues of the human body. Endoscopes require strict cleaning and disinfection after use.

[0003] In related technologies, the equipment used for cleaning endoscopes is complex in structure, bulky in size, and expensive. Summary of the Invention

[0004] In view of this, the embodiments of this application aim to provide an endoscope cleaning assembly with a simple structure and low cost.

[0005] This application provides an endoscope cleaning assembly, which includes at least one auxiliary connector. The auxiliary connector includes: a body having at least one endoscope interface and at least one cleaning interface, wherein the endoscope interface is in fluid communication with the cleaning interface, the endoscope interface is used for detachable connection with an endoscope, and the cleaning interface is used for introducing or withdrawing cleaning fluid; and a limiting structure disposed on the body, the limiting structure being used to limit the relative movement between the body and the endoscope.

[0006] In some embodiments, the endoscope interface is provided in a one-to-one correspondence with the cleaning interface; and / or at least one of the auxiliary connectors has at least two endoscope interfaces; and / or at least one of the auxiliary connectors includes a handle structure connected to the body; and / or at least one of the auxiliary connectors includes a sealing structure for sealing the endoscope interface.

[0007] In some embodiments, the body includes: an adapter plate; a first tube and a second tube, respectively disposed on opposite sides of the adapter plate along the thickness direction and in fluid communication with each other, wherein the opening of the first tube is formed as the endoscope interface and the opening of the second tube is formed as a cleaning interface.

[0008] In some embodiments, the limiting structure includes at least one snap-fit ​​member disposed on the side of the adapter plate facing the first tube body, the snap-fit ​​member being used to connect with the endoscope.

[0009] In some embodiments, the first tube has an expandable section for accommodating a portion of the endoscope's structure. The expandable section has an expanded state and a contracted state. The limiting structure includes a limiting member movably connected to the first tube to allow the expandable section to switch between the expanded state and the contracted state.

[0010] In some embodiments, the limiting member includes a limiting plate having a limiting through hole, and the outer surface of the expandable section forms a limiting groove. In the contracted state, the expandable section passes through the limiting through hole and the limiting plate is constrained in the limiting groove along the axial direction of the first tube.

[0011] In some embodiments, the auxiliary connector further includes a sealing structure, the sealing structure including a flexible sealing tube, the flexible sealing tube being stacked with the first tube body.

[0012] In some embodiments, the endoscope cleaning assembly further includes: a connector for connecting the cleaning interface to a cleaning fluid source, the connector including a tube and a valve body disposed within the tube, the tube having a first interface, a second interface and a third interface, the first interface being for communicating with the cleaning interface, the second interface being for communicating with the cleaning fluid source, the third interface being a backflow port, and the valve body being able to switch between a first state and a second state under pressure, wherein, in the first state, the valve body blocks the third interface and connects the first interface and the second interface, and in the second state, the valve body blocks the second interface and connects the first interface and the third interface.

[0013] In some embodiments, the endoscope cleaning assembly includes at least two of the auxiliary connectors, wherein at least one of the auxiliary connectors is used to connect to the endoscope body, and at least one of the auxiliary connectors is used to connect to the endoscope connector, the connector being used to connect the endoscope body to an external structure and the connector being in fluid communication with the endoscope body.

[0014] In some embodiments, the endoscope cleaning assembly includes: a syringe for connecting to a cleaning port to introduce cleaning fluid; and / or a cleaning container for containing cleaning fluid flowing out of the endoscope; and / or a cleaning support for supporting the endoscope; and / or a occlusion device including a plug and a flexible connector, the plug being used to block one or more ports of the endoscope, and the flexible connector connecting the plug and the auxiliary connector.

[0015] In practical use, the endoscope cleaning assembly of this embodiment allows the operator to connect the endoscope interface of the auxiliary connector to the interface on the endoscope and operate the limiting structure to limit the body of the endoscope. Then, a liquid pumping device, such as a syringe, is connected to the cleaning interface. The cleaning fluid can then be delivered through the cleaning interface and the endoscope interface into the corresponding channel of the endoscope to complete the cleaning. After cleaning, the auxiliary connector can be simply removed from the endoscope. Compared with endoscope cleaning devices provided in related technologies, the endoscope cleaning assembly provided in this embodiment has a simpler structure, lower cost, and is more convenient to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an auxiliary connector according to an embodiment of this application; Figure 2 for Figure 1 Explosion diagram of the auxiliary joint; Figure 3 This is a schematic diagram of another auxiliary connector according to an embodiment of this application; Figure 4 for Figure 3 Explosion diagram of the auxiliary joint; Figure 5 This is a schematic diagram illustrating a usage scenario of the endoscope cleaning assembly according to an embodiment of this application; Figure 6 for Figure 5 An enlarged schematic diagram of part A in the middle; Figure 7 for Figure 5 A schematic diagram of the flow path of the cleaning component and the cleaning fluid inside the endoscope; Figure 8 for Figure 5 A schematic diagram of another flow path of the cleaning component and cleaning fluid inside the endoscope; Figure 9 for Figure 5 A schematic diagram of another flow path of the cleaning component and cleaning fluid inside the endoscope.

[0017] Explanation of reference numerals in the attached figures 1. Auxiliary connector; 1a. Endoscope interface; 1b. Cleaning interface; 11. Body; 111. Adapter plate; 112. First tube body; 112a. Expandable section; 112b. Limiting groove; 113. Second tube body; 12. Limiting structure; 121. Snap-fit ​​component; 1211. Buckle; 1211a. Connecting part; 1211b. Flanged part; 122. Limiting component; 1221. Limiting plate; 1222. Limiting through hole; 13. Handle structure; 14. Sealing structure; 141. Flexible sealing tube; 142. Connecting plate; 2. Connecting component; 2a. First interface; 2b. Second interface 1. Port; 2c. Third interface; 3. Syringe; 4. Cleaning container; 5. Cleaning bracket; 51. First support arm; 52. Second support arm; 6. Sealing component; 61. Plug; 62. Flexible connector; 200. Endoscope; 210. Endoscope body; 210a. Negative pressure channel control port; 210b. Air-water channel control port; 210c. Instrument channel port; 211. Handle; 212. Catheter; 220. Connector; 220a. Negative pressure channel port; 220b. Water channel port; 220c. Air channel port; 220d. Secondary water inlet; 221. Connector head; 222. Connecting tube. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0019] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0020] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0021] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0022] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0023] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0024] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0025] This application provides an endoscope cleaning assembly for cleaning an endoscope 200. The endoscope 200 can be any type of endoscope 200 provided in the related art. It is understood that the endoscope 200 typically has multiple functional channels, such as channels for fluid delivery, gas delivery, surgical instrument insertion, and aspiration. Specifically, the endoscope cleaning assembly of this application is used to introduce cleaning fluid into the aforementioned functional channels of the endoscope 200 for cleaning.

[0026] Reference Figures 1-5 The endoscope cleaning assembly of this application embodiment includes at least one auxiliary connector 1. The auxiliary connector 1 includes a body 11 and a limiting structure 12. The body 11 has at least one endoscope interface 1a and at least one cleaning interface 1b. The endoscope interface 1a and the cleaning interface 1b are in fluid communication. The endoscope interface 1a is used for detachable connection with the endoscope 200. The cleaning interface 1b is used for introducing or withdrawing cleaning fluid. The limiting structure 12 is disposed on the body 11 and is used to limit the relative movement between the body 11 and the endoscope 200.

[0027] Here, the specific structural form of the body 11 is not limited. For example, the body 11 can be a tubular structure, with one side opening forming an endoscope interface 1a and the other side opening forming a cleaning interface 1b. As another example, the body 11 can be any other structure with an internal cavity, with one side opening of the cavity forming an endoscope interface 1a and the other side opening forming a cleaning interface 1b.

[0028] The fluid communication between the endoscope interface 1a and the cleaning interface 1b specifically means that the cleaning fluid flowing in through the cleaning interface 1b can flow out through the endoscope interface 1a, and vice versa. The endoscope interface 1a and the cleaning interface 1b can be configured in a one-to-one correspondence, or one cleaning interface 1b can correspond to multiple endoscope interfaces 1a, or one endoscope interface 1a can correspond to multiple cleaning interfaces 1b. Those skilled in the art can configure it according to actual usage requirements, and there are no restrictions on this.

[0029] The endoscope interface 1a is used for detachable connection with the endoscope 200, specifically, for detachable connection with the interface of the aforementioned functional channel of the endoscope 200.

[0030] The cleaning port 1b is used to introduce or remove cleaning fluid. Here, cleaning fluid specifically refers to the liquid used to clean the endoscope 200, and the specific composition of the cleaning fluid is not limited. It can be understood that whether the cleaning port 1b is used to introduce or remove cleaning fluid is related to the actual flow path of the cleaning fluid during the cleaning process.

[0031] Taking the cleaning port 1b for introducing cleaning fluid as an example, the cleaning port 1b can be directly or indirectly (e.g., through an intermediate pipeline) connected to a device for pumping cleaning fluid, such as a pump, syringe 3, etc., so that the cleaning fluid can be introduced by operating the above-mentioned device. Here, the syringe 3 can specifically be a medical syringe 3 known to those skilled in the art. Alternatively, the cleaning port 1b can be connected to a device for containing cleaning fluid, and then negative pressure can be applied through other interfaces of the endoscope 200 to introduce the cleaning fluid.

[0032] Taking cleaning port 1b as an example of using it to draw out cleaning fluid, cleaning port 1b may not be connected to other structures, and the cleaning fluid may flow directly out from cleaning port 1b. Alternatively, cleaning port 1b may be connected to a pipeline structure to draw the cleaning fluid to the desired location, such as a container.

[0033] It is understood that the endoscope cleaning assembly may include one auxiliary connector 1 or multiple auxiliary connectors 1. In the case where the endoscope cleaning assembly includes multiple auxiliary connectors 1, the specific structural forms of the bodies 11 and / or limiting structures 12 of the multiple auxiliary connectors 1 may be the same, different, or not completely the same.

[0034] For an auxiliary connector 1, its body 11 may have only one endoscope interface 1a, or it may have multiple endoscope interfaces 1a. Those skilled in the art can reasonably set the number of auxiliary connectors 1 and the number of endoscope interfaces 1a on the body 11 of each auxiliary connector 1 according to the actual needs of the number and specific distribution of the interfaces of the endoscope 200. As an example, assuming that the endoscope 200 has three interfaces, two of which are arranged adjacently and the other interface is far away from the above two interfaces, the endoscope cleaning assembly may include two auxiliary connectors 1, one of which has two endoscope interfaces 1a and the other auxiliary connector 1 has one endoscope interface 1a.

[0035] The limiting structure 12 is used to restrict the relative movement between the body 11 and the endoscope 200, thereby improving the positional stability of the auxiliary connector 1 during the cleaning process and reducing the probability of the auxiliary connector 1 detaching from the interface on the endoscope 200. The specific structural form of the limiting structure 12 is not limited. As an example, the limiting structure 12 is configured to cooperate and connect with a corresponding structure on the endoscope 200, such as a snap-fit, thereby restricting the relative movement between the body 11 and the endoscope 200. As another example, the limiting structure 12 is configured to enhance the connection strength between the body 11 and the endoscope 200. For example, in embodiments where the body 11 is a tubular structure, the limiting structure 12 is configured as a clamp or other structure that allows the tubular structure to contract, thereby restricting the relative movement between the body 11 and the endoscope 200.

[0036] Reference Figure 5 In actual use, the operator can connect the endoscope interface 1a of the auxiliary connector 1 to the interface on the endoscope 200 and operate the limiting structure 12 to limit the body 11. Then, a liquid pumping device such as a syringe 3 is connected to the cleaning interface 1b. The cleaning fluid can then be fed into the corresponding channel of the endoscope 200 through the cleaning interface 1b and the endoscope interface 1a to complete the cleaning. After cleaning, the auxiliary connector 1 can be removed from the endoscope 200. Compared with the endoscope 200 cleaning equipment provided in related technologies, the endoscope cleaning component provided in this application embodiment has a simple structure, low cost, and is more convenient to operate.

[0037] In some embodiments, the endoscope interface 1a and the cleaning interface 1b are configured in a one-to-one correspondence. Specifically, the one-to-one correspondence between the endoscope interface 1a and the cleaning interface 1b means that no matter how many endoscope interfaces 1a are provided on the body 11, a corresponding number of cleaning interfaces 1b are provided, and the endoscope interface 1a is only in fluid communication with one corresponding cleaning interface 1b, and is not in fluid communication with other endoscope interfaces 1a.

[0038] The advantage of setting up a one-to-one correspondence between endoscope interface 1a and cleaning interface 1b is that it helps to improve the stability of the flow in the functional channel of the endoscope 200 corresponding to each endoscope interface 1a, thereby improving the cleaning effect.

[0039] It is understood that in some other embodiments, one cleaning port 1b may also correspond to multiple endoscope ports 1a, which helps to reduce the operation frequency of the cleaning fluid source and improve cleaning efficiency.

[0040] In some embodiments, at least one auxiliary connector 1 has at least two endoscope interfaces 1a, so that two or more functional channels of the endoscope 200 can be cleaned through one auxiliary connector 1, thereby helping to reduce the number of auxiliary connectors 1 required, further simplifying the structure of the endoscope cleaning assembly, reducing costs, and improving operational efficiency.

[0041] It should be noted that in embodiments where the endoscope cleaning assembly includes multiple auxiliary connectors 1, only a portion of the auxiliary connectors 1 may have at least two endoscope interfaces 1a, while the remaining auxiliary connectors 1 may have only one endoscope interface 1a. Of course, in some other embodiments, each auxiliary connector 1 may be configured to have only one endoscope interface 1a.

[0042] In some embodiments, refer to Figure 1 At least one auxiliary connector 1 includes a handle structure 13 connected to the body 11. Here, the handle structure 13 is mainly used to provide a force application point for the operator when the body 11 is connected to the endoscope 200 and / or when the syringe 3 or other equipment is connected to the body 11 and / or when the operating limit structure 12 is operated. The specific structural form of the handle structure 13 is not limited, as long as it is convenient for the operator to exert force.

[0043] Of course, in some other embodiments, the auxiliary connector 1 may not include the handle structure 13.

[0044] In some embodiments, refer to Figure 2 and Figure 4 At least one auxiliary connector 1 includes a sealing structure 14 for sealing the endoscope interface 1a. Specifically, the sealing structure 14 is used to seal the connection between the endoscope interface 1a and the endoscope 200, thereby reducing the probability of cleaning fluid leakage. The specific structural form of the sealing structure 14 is not limited, such as a sealing gasket, sealing sleeve, etc., and there is no limitation on it.

[0045] In some embodiments, refer to Figures 1-4The main body 11 specifically includes an adapter plate 111, a first tube 112 and a second tube 113. The first tube 112 and the second tube 113 are respectively disposed on opposite sides of the adapter plate 111 along the thickness direction and are in fluid communication. The opening of the first tube 112 is formed as an endoscope interface 1a, and the opening of the second tube 113 is formed as a cleaning interface 1b.

[0046] As an example, both the first tube 112 and the second tube 113 are straight tubes, and their axial directions are perpendicular to the thickness direction of the adapter plate 111. Alternatively, at least one of the first tube 112 and the second tube 113 is a bent tube.

[0047] The specific connection method between the first tube 112 and the second tube 113 and the adapter plate 111 is not limited. For example, it can be bonding, welding, snap-fitting, or at least one of the first tube 112 and the second tube 113 can form an integral structure with the adapter plate 111.

[0048] As mentioned above, in some embodiments, the body 11 may have multiple endoscope interfaces 1a. In such embodiments, multiple endoscope interfaces 1a may be formed in a first tube 112, or there may be multiple first tubes 112, each first tube 112 forming an endoscope interface 1a.

[0049] In actual use, the first tube 112 is configured to allow the connector structure on the endoscope 200 to be inserted into its lumen, thereby realizing a detachable connection between the endoscope interface 1a and the endoscope 200. Alternatively, the first tube 112 is configured to be inserted into the interface structure on the endoscope 200, thereby realizing a detachable connection between the endoscope interface 1a and the endoscope 200. Those skilled in the art can make specific settings according to actual usage requirements.

[0050] In this embodiment, the main body 11 is specifically configured to include an adapter plate 111, a first tube 112, and a second tube 113. This structural form helps operators quickly distinguish between the endoscope interface 1a and the cleaning interface 1b, thereby improving operational efficiency.

[0051] In some embodiments, refer to Figures 1-4 The main body 11 includes at least two first tubes 112, each first tube 112 forming an endoscope interface 1a, and the extension direction of each first tube 112 is parallel to the thickness direction of the adapter plate 111.

[0052] This structural design helps operators quickly align multiple endoscope interfaces 1a with their corresponding interfaces on the endoscope 200, improving operational efficiency.

[0053] In some embodiments, refer to Figure 1 and Figure 2The limiting structure 12 includes at least one snap-fit ​​member 121 disposed on the side of the adapter plate 111 facing the first tube body 112, the snap-fit ​​member 121 being used to connect with the endoscope 200.

[0054] In this embodiment, the limiting structure 12 is configured as a snap-fit ​​connector 121, which helps to improve its limiting effect.

[0055] Here, the specific structural form of the snap-fit ​​connector 121 is not limited, as long as the snap-fit ​​connector 121 can be connected to the endoscope 200. For example, refer to... Figure 1 and Figure 2 The snap-fit ​​component 121 includes two snap fasteners 1211 arranged opposite to each other. Each snap fastener 1211 includes a connecting part 1211a and a flanged part 1211b. The connecting part 1211a is connected to the adapter plate 111, and the flanged part 1211b is connected to the end of the connecting part 1211a away from the adapter plate 111. The flanged parts 1211b of the two snap fasteners extend toward each other, and a receiving groove is formed between the flanged parts 1211b and the adapter plate 111. The corresponding structure of the endoscope 200 can be snapped into the receiving groove, thereby realizing the engagement connection between the snap-fit ​​component 121 and the endoscope 200, and thus restricting the relative movement between the body 11 and the endoscope 200.

[0056] In the above embodiments, the snap-fit ​​member 121 can be configured as an elastic member. Thus, in actual operation, only an appropriate force needs to be applied to deform the snap-fit ​​member 121, which can achieve the snap-fit ​​of the corresponding structure of the endoscope 200 into or out of the receiving groove. Alternatively, the snap-fit ​​member 121 can be configured as a rigid structure, and the aforementioned flange portion 1211b and connecting portion 1211a can be movably connected to achieve the snap-fit ​​of the corresponding structure of the endoscope 200 into or out of the receiving groove.

[0057] It should be noted that the snap-fit ​​connector 121 is not limited to the above-described structural form.

[0058] In some other embodiments, reference is made to... Figure 3 and Figure 4 The first tube 112 has an expandable section 112a, which is used to accommodate part of the structure of the endoscope 200. The expandable section 112a has an expanded state and a contracted state. The limiting structure 12 includes a limiting member 122, which is movably connected to the first tube 112 so that the expandable section can switch between the expanded state and the contracted state.

[0059] Here, expandable section 112a specifically refers to a pipe section whose diameter can be expanded. As an example, the pipe wall at expandable section 112a has a notch, which allows the pipe wall of expandable section 112a to deform and thus expand the pipe diameter.

[0060] The difference between the expanded and contracted states of the expandable section 112a is that the diameter of the expandable section 112a in the expanded state is larger than that in the contracted state. The limiting member 122 is movably connected to the first pipe body 112, thereby realizing the switching between the expanded and contracted states of the expandable section. Here, the specific structural form of the limiting member 122 is not limited. As an example, the limiting member 122 can be a clamp structure, a contraction ring structure, etc.

[0061] In this embodiment, during actual use, the limiting member 122 can be operated first to put the expandable section into an expanded state. In this state, the structure of the endoscope 200 (such as the tubular connector structure on the endoscope 200) can be easily inserted into the expandable section 112a to achieve connection. Then, the limiting member 122 can be operated to switch the expandable section 112a to a contracted state. In this state, because the diameter of the expandable section 112a is reduced, the friction increases, thus restricting the structure from exiting the expandable section 112a, thereby restricting the relative movement between the body 11 and the endoscope 200.

[0062] It should be noted that, as mentioned above, in some embodiments, the auxiliary connector 1 includes two or more first tubes 112. In such embodiments, only a portion of the first tubes 112 may form an expandable section 112a, while the other portion of the first tubes 112 may not form an expandable section 112a.

[0063] It should also be noted that both the snap-fit ​​member 121 mentioned above and the limiting member 122 in the embodiments of this application can achieve the limiting function, that is, both can be used independently as the limiting structure 12. Those skilled in the art can choose one of the above structures as the limiting structure 12 according to actual usage needs, or they can set both of the above structures at the same time. In the embodiment where the endoscope cleaning assembly includes multiple auxiliary connectors 1, some of the auxiliary connectors 1 can use the snap-fit ​​member 121 as the limiting structure 12, while other auxiliary connectors 1 can use the limiting member 122 as the limiting structure 12.

[0064] In some embodiments, refer to Figure 4 Specifically, the limiting member 122 includes a limiting plate 1221, which has a limiting through hole 1222. The outer surface of the expandable section 112a forms a limiting groove 112b. In the contracted state, the expandable section passes through the limiting through hole 1222 and the limiting plate 1221 is constrained in the limiting groove 112b along the axial direction of the first tube 112.

[0065] Here, the limiting plate 1221 is specifically formed as a plate structure, and the limiting through hole 1222 extends through the limiting plate 1221 along the thickness direction. The diameter of the limiting through hole 1222 is specifically set to match the outer diameter of the expandable section 112a in the contracted state. In this way, the expandable section 112a will be in a contracted state after it extends into the limiting through hole 1222.

[0066] The limiting groove 112b is used to constrain the position of the limiting plate 1221 along the axial direction of the first tube 112, thereby holding the limiting plate 1221 in a position where the expandable section 112a extends into the limiting through hole 1222, and further holding the expandable section 112a in a contracted state. As an example, the outer surface of the expandable section 112a is formed with elastic limiting protrusions spaced apart along the axial direction of the first tube 112, and the limiting groove 112b is formed between the elastic limiting protrusions.

[0067] In this embodiment, during actual use, simply pushing the limiting plate 1221 to move it along the axial direction of the first tube 112 is sufficient to switch the expandable section 112a between the contracted and expanded states, thereby improving operational efficiency.

[0068] It should be noted that the structure of the limiting member 122 is not limited to this. As mentioned above, the limiting member 122 can also be configured as a clamp structure sleeved on the outside of the expandable section 112a. The expandable section 112a can be switched between the contracted state and the expanded state by adjusting the tightness of the clamp structure.

[0069] In some embodiments, as mentioned above, the auxiliary connector 1 further includes a sealing structure 14, see reference to Figure 2 and Figure 4 The sealing structure 14 specifically includes a flexible sealing tube 141, which is stacked with the first tube body 112.

[0070] The overlapping arrangement of the flexible sealing tube 141 and the first tube body 112 specifically means that one of the flexible sealing tube 141 and the first tube body 112 is fitted over the outside of the other. Whether the flexible sealing tube 141 is specifically located inside or outside the first tube body 112 depends on the actual connection relationship between the first tube body 112 and the corresponding structure on the endoscope 200. For example, referring to... Figure 2 If, during actual use, the first tube 112 needs to be inserted into the interface on the endoscope 200, the flexible sealing tube 141 should be fitted over the outside of the first tube 112, referring to... Figure 4 If the connector structure on the endoscope 200 needs to extend into the first tube 112 during actual use, the flexible sealing tube 141 should be set inside the first tube 112. That is, during actual use, the flexible sealing tube 141 should be located between the first tube 112 and the corresponding interface of the endoscope 200.

[0071] The flexible sealing tube 141 specifically refers to a tube structure made of a flexible material. Here, flexibility refers to the material properties of the structure. This type of property can be due to the material's light weight, or it can be due to at least one of the material's properties such as thickness, stiffness, strength, and elastic modulus. The flexibility of the flexible sealing tube 141 enables it to undergo elastic deformation under pressure, thereby improving the tightness of the fit between the first tube body 112 and the corresponding structure on the endoscope 200, and thus achieving a sealing effect.

[0072] In this embodiment, the first tube 112 can be a rigid structure or a flexible structure, but it is necessary to satisfy that the elastic modulus of the flexible sealing tube 141 is less than the elastic modulus of the first tube 112, that is, the stiffness of the flexible sealing tube 141 is less than the stiffness of the first tube 112, so as to achieve the sealing effect of the flexible sealing tube 141.

[0073] The flexible sealing tube 141 and the first tube body 112 can be relatively fixed by means of bonding, welding, snap-fitting, etc., or the flexible sealing tube 141 and the first tube body 112 can be not relatively fixed, and there is no restriction on this.

[0074] In this embodiment, by configuring the sealing structure 14 as a flexible sealing tube 141, the sealing performance is improved. Of course, in some other embodiments, the sealing structure 14 can also be configured as other structural forms such as a gasket.

[0075] As mentioned above, in some embodiments, the body 11 has a plurality of first tubes 112. In such embodiments, if the flexible sealing tube 141 is disposed outside the first tube 112, then refer to Figure 2 The sealing structure 14 includes multiple flexible sealing tubes 141 and may further include a connecting plate 142. The connecting plate 142 connects multiple flexible sealing tubes 141. After actual assembly, the connecting plate 142 is in contact with the surface of the adapter plate 111, thereby improving the assembly efficiency of the flexible sealing tubes 141 and the first tube body 112.

[0076] In some embodiments, refer to Figure 5 and Figure 6 The endoscope cleaning assembly also includes a connector 2, which connects the cleaning port 1b to the cleaning fluid source. The connector 2 includes a tubing and a valve body (not shown in the figure) disposed within the tubing. The tubing has a first port 2a, a second port 2b, and a third port 2c. The first port 2a is used to communicate with the cleaning port 1b, the second port 2b is used to communicate with the cleaning fluid source, and the third port 2c is a backflow port. The valve body can switch between a first state and a second state under nighttime operation.

[0077] Specifically, when the pressure in the cleaning fluid source is greater than the pressure at the cleaning port 1b, the valve body is in the first state. In the first state, the valve body blocks the third port 2c and opens the first port 2a and the second port 2b. In this way, the cleaning fluid flows from the cleaning fluid source to the cleaning port 1b and enters the functional channel of the endoscope 200.

[0078] When the pressure in the cleaning fluid source is less than the pressure at the cleaning port 1b, the valve body is in the second state. In the second state, the valve body blocks the second port 2b and opens the first port 2a and the third port 2c, so that the cleaning fluid in the functional channel of the endoscope 200 cannot flow back into the cleaning fluid source, but flows out through the third port 2c.

[0079] Here, the cleaning fluid source specifically refers to the equipment used to pump the cleaning fluid, such as a pump, syringe 3, etc.

[0080] The specific connection method between the first interface 2a and the second interface 2b and their corresponding structures is not limited. For example, they can be directly connected or indirectly connected through intermediate pipelines. There are no restrictions on this. The third interface 2c can be connected to no external structure or to an external pipeline to guide the countercurrent cleaning fluid to the desired location.

[0081] In this embodiment, the endoscope cleaning assembly includes a connector 2 with anti-backflow function. This reduces the possibility of the cleaning fluid in the endoscope 200 flowing back into the cleaning fluid source and contaminating the cleaning fluid during the cleaning process, thereby improving the cleaning effect.

[0082] As mentioned above, in some embodiments, the auxiliary connector 1 may have two or more cleaning ports 1b. In this case, the connector 2 can be configured to correspond one-to-one with the cleaning ports 1b. Alternatively, a connector 2 may include multiple tubes and multiple valves respectively disposed in the multiple tubes. Each tube forms the first port 2a, the second port 2b and the third port 2c, thereby realizing that one connector 2 corresponds to multiple cleaning ports 1b.

[0083] It should be noted that in some embodiments, the endoscope cleaning assembly may not include the aforementioned connector 2, and the cleaning fluid source may be directly connected to the cleaning port 1b or indirectly connected to the cleaning port 1b via an intermediate pipeline.

[0084] In some embodiments, specifically, the connector 2 is configured as a Luer connector, thereby improving its ease of connection with the corresponding structure and its sealing performance after connection.

[0085] In some embodiments, refer to Figure 5The endoscope 200 specifically includes a body 210 and a connector 220, the connector 220 being used to connect the body 210 to an external structure and the connector 220 being in fluid communication with the body 210.

[0086] Here, the scope 210 specifically refers to the part that is operated by the operator during actual use. As an example, the scope 210 includes a handle 211 and a conduit 212 connected to the handle 211.

[0087] Connector 220 is used to connect endoscope body 210 to an external structure, which includes, but is not limited to, endoscope 200 main unit, air and water supply equipment, imaging device, etc. Fluid communication between connector 220 and endoscope body 210 specifically means that at least a portion of its functional channels are in fluid communication with at least a portion of the functional channels within endoscope body 210. For example, connector 220 includes a connector head 221 and a connecting tube 222, with the functional channels within connector head 221 in fluid communication with the functional channels within endoscope body 210 via connecting tube 222.

[0088] In this embodiment, by providing at least two auxiliary connectors 1, it is possible to simultaneously clean the functional channels within the endoscope body 210 and the connector 220 without having to separate the connector 220 from the endoscope body 210 for cleaning, thereby improving cleaning efficiency and cleaning effect.

[0089] It should be noted that, in this embodiment, the auxiliary connector 1 for connecting to the lens body 210 and the auxiliary connector 1 for connecting to the connector 220 may have different structural forms. Those skilled in the art can set them according to the specific structural forms of the lens body 210 and the connector 220. As an example, the auxiliary connector 1 for connecting to the lens body 210 may be... Figure 1 and Figure 2 The auxiliary connector 1 shown in the image, which is used for connection with connector 220, can be... Figure 3 and Figure 4 Auxiliary connector 1 is shown in the image.

[0090] In some embodiments, refer to Figure 5 The endoscope cleaning assembly includes a syringe 3, which is used to connect to the cleaning port 1b to introduce cleaning fluid into the cleaning port 1b. That is, the syringe 3 is used as the source of cleaning fluid mentioned above.

[0091] Here, the syringe 3 can be any kind of device with injection function provided in the relevant art, such as a medical syringe 3 well known to those skilled in the art. The specific connection method between the syringe 3 and the cleaning interface 1b can be referred to the description in the relevant part above, and will not be repeated here.

[0092] In this embodiment, using syringe 3 as the cleaning fluid source can further reduce the cost of the endoscope cleaning assembly.

[0093] In this embodiment, the number of syringes 3 can be one or more.

[0094] It should be noted that in some embodiments, where the endoscope 200 has an interface that can be directly connected to the syringe 3, at least one syringe 3 can be directly connected to the endoscope 200 through the aforementioned interface, without connecting to the endoscope 200 through the cleaning interface 1b.

[0095] In some embodiments, refer to Figure 5 The endoscope cleaning assembly includes a cleaning container 4, which is used to contain the cleaning fluid flowing out of the endoscope 200. The specific structure of the cleaning container 4 is not limited, and it can be a cup-shaped structure, a basin-shaped structure, etc.

[0096] In this embodiment, the cleaning container 4 can collect the cleaning fluid flowing out of the endoscope 200, thereby improving the environmental performance of the endoscope cleaning assembly. It should be noted that in some other embodiments, the endoscope cleaning assembly may not include the cleaning container 4. In some embodiments, refer to Figure 5 The endoscope cleaning assembly includes a cleaning bracket 5, which supports the endoscope 200. The specific structure of the cleaning bracket 5 is not limited, as long as it effectively supports the endoscope 200. Taking an endoscope 200 comprising a scope body 210 and a connector 220 as an example, the cleaning bracket 5 may specifically include a first support arm 51 and a second support arm 52, respectively supporting the scope body 210 and the connector 220. The specific structure of the first support arm 51 and the second support arm 52 is not limited, and the first support arm 51 and the second support arm 52 can be fixedly connected or movably connected.

[0097] In this embodiment, by setting the cleaning bracket 5, the endoscope 200 can be cleaned and fixed during the cleaning process, thereby reducing the difficulty of cleaning. Furthermore, by reasonably setting the support angle of the cleaning bracket 5, the endoscope 200 can be fixed at an angle that is convenient for the operator to operate and / or for the flow of cleaning fluid, which helps to improve the convenience of operation and / or cleaning efficiency.

[0098] In some other embodiments, the endoscope cleaning assembly may not include the cleaning support 5, and the operator may hold the endoscope 200 by hand or place the endoscope 200 on other external structures for cleaning.

[0099] In some embodiments, refer to Figure 5The endoscope cleaning assembly includes a suffix 6, which includes a plug 61 and a flexible connector 622. The plug 61 is used to block one or more interfaces of the endoscope 200, and the flexible connector 622 connects the plug 61 and the auxiliary connector 1.

[0100] It is understandable that during the actual cleaning process, there may be some channels that do not require cleaning, such as instrument channels. In this case, the plug 61 can be used to seal the interface of the aforementioned functional channel, thereby reducing the possibility of misoperation. The specific structural form of the plug 61 can be determined according to the structural form of the interface that needs to be sealed, and will not be elaborated here.

[0101] The flexible connector 622 is used to connect the plug 61 to the auxiliary connector 1, thereby reducing the possibility of the plug 61 being lost. The flexible connector 622 can specifically be a connecting wire.

[0102] It should be noted that in some other embodiments, the endoscope cleaning assembly may not include the aforementioned sealing element 6.

[0103] The endoscope cleaning component and specific cleaning process of this application will be described in more detail below with reference to a specific embodiment.

[0104] Reference Figures 1-9 The endoscope cleaning assembly of this embodiment targets an endoscope 200, which includes a scope body 210 and a connector 220. The connector 220 is used to connect the scope body 210 to the endoscope 200 host.

[0105] The scope body 210 includes a handle portion 211 and a conduit 212. The connector 220 includes a connector head 221 and a connecting tube 222. The connecting tube 222 connects the handle portion 211 and the connector head 221, thereby connecting the functional channel in the connector head 221 and the functional channel in the handle portion 211.

[0106] The endoscope body 210 has a negative pressure channel control port 210a, an air-water channel control port 210b, and an instrument channel port 210c. The connector 220 has a negative pressure channel port 220a, a water channel port 220b, an air channel port 220c, and a secondary water supply port 220d. The air-water channel control port 210b is in fluid communication with both the water channel port 220b and the air channel port 220c, and the negative pressure channel port 220a is in fluid communication with the negative pressure channel control port 210a.

[0107] The endoscope cleaning assembly includes two auxiliary connectors 1. For ease of distinction, these two auxiliary connectors 1 will be referred to as the first auxiliary connector and the second auxiliary connector, respectively.

[0108] The first auxiliary connector is used to connect with the mirror body 210. The first auxiliary connector includes a body 11, a limiting structure 12, a sealing structure 14, and a handle structure 13.

[0109] The main body 11 includes an adapter plate 111, a first tube 112, and a second tube 113. The first tube 112 and the second tube 113 are respectively disposed on opposite sides of the adapter plate 111 along the thickness direction and are in fluid communication with each other. There are two first tubes 112 and two tubes 113. Each first tube 112 forms an endoscope interface 1a, and each second tube 113 forms a cleaning interface 1b. That is, the main body 11 of the first auxiliary connector has two endoscope interfaces 1a and two cleaning interfaces 1b. The two endoscope interfaces 1a are respectively used to connect to the negative pressure channel control port 210a and the air-water channel control port 210b of the endoscope body 210.

[0110] The sealing structure 14 includes two flexible sealing tubes 141 and a connecting plate 142 connecting the two flexible sealing tubes 141. The two flexible sealing tubes 141 are respectively nested on the outside of the two first tube bodies 112, and the plate surface of the connecting plate 142 is fitted with the plate surface of the adapter plate 111.

[0111] The limiting structure 12 includes at least one snap-fit ​​member 121 disposed on the side of the adapter plate 111 facing the first tube body 112. The snap-fit ​​member 121 includes two buckles 1211 disposed opposite to each other. The buckle 1211 includes a connecting part 1211a and a flange part 1211b. The connecting part 1211a is connected to the adapter plate 111, and the flange part 1211b is connected to the end of the connecting part 1211a away from the adapter plate 111. The flange parts 1211b of the two buckles extend toward each other, and a receiving groove is formed between the flange parts 1211b and the adapter plate 111. The corresponding structure of the mirror body 210 can be snapped into the receiving groove.

[0112] The handle structure 13 includes two plate structures disposed on the adapter plate 111 facing the second tube body 113. The two plate structures are spaced apart and disposed opposite to each other. The second tube body 113 is located between the two plate structures. The plate structures have hollowed-out portions for the operator's fingers to insert.

[0113] The second auxiliary connector is used to connect with the connector 220. The second auxiliary connector includes a body 11, a limiting structure 12, and a sealing structure 14.

[0114] The main body 11 includes an adapter plate 111, a first tube 112, and a second tube 113. The first tube 112 and the second tube 113 are respectively disposed on opposite sides of the adapter plate 111 along the thickness direction and are in fluid communication with each other. There are two first tubes 112 and two tubes 113. Each first tube 112 forms an endoscope interface 1a, and each second tube 113 forms a cleaning interface 1b. That is, the main body 11 of the second auxiliary connector has two endoscope interfaces 1a and two cleaning interfaces 1b. The two endoscope interfaces 1a are respectively used to connect to the air passage port 220c and the water passage port 220b of the connector 220.

[0115] Of the two first tube bodies 112, at least one first tube body 112 (e.g., the first tube body 112 where the endoscope interface 1a is located for connection with the water channel 220b) has an expandable section 112a, which has an expanded state and a contracted state. The limiting structure 12 includes a limiting member 122, which is movably connected to the first tube body 112 to allow the expandable section to switch between the expanded state and the contracted state. The limiting member 122 includes a limiting plate 1221, which has a limiting through hole 1222. The outer surface of the expandable section 112a forms a limiting groove 112b. In the contracted state, the expandable section 112a passes through the limiting through hole 1222 and the limiting plate 1221 is constrained within the limiting groove 112b along the axial direction of the first tube body 112.

[0116] The sealing structure 14 includes two flexible sealing tubes 141, which are respectively nested inside the two first tube bodies 112.

[0117] The endoscope cleaning assembly also includes a connector 2, which is a Luer connector and includes two tubes and valve bodies respectively disposed in the two tubes.

[0118] The fitting has a first interface 2a, a second interface 2b and a third interface 2c. The first interface 2a is used to communicate with the cleaning interface 1b, the second interface 2b is used to communicate with the syringe 3, and the third interface 2c is a backflow port. The valve body can switch between the first state and the second state under pressure.

[0119] Specifically, when the pressure in the syringe 3 is greater than the pressure at the cleaning port 1b, the valve body is in the first state. In the first state, the valve body blocks the third port 2c and opens the first port 2a and the second port 2b. In this way, the cleaning fluid flows from the syringe 3 to the cleaning port 1b and enters the functional channel of the endoscope 200.

[0120] When the pressure in syringe 3 is less than the pressure at cleaning port 1b, the valve body is in the second state. In the second state, the valve body blocks the second port 2b and opens the first port 2a and the third port 2c, so that the cleaning fluid in the functional channel of endoscope 200 cannot flow back into syringe 3, but flows out through the third port 2c.

[0121] Of the two fittings, the first port 2a of one fitting is connected to one of the cleaning ports 1b of the first auxiliary connector via a pipe, and the first port 2a of the other fitting is connected to the other cleaning port 1b of the first auxiliary connector via a pipe.

[0122] The endoscope cleaning assembly includes a suffix 6, which includes a plug 61 and a flexible connector 622. The plug 61 is used to block the instrument channel opening 210c of the endoscope body 210, and the flexible connector connects the plug 61 to the body 11 of the first meat auxiliary connector 1.

[0123] The endoscope cleaning assembly includes a cleaning container 4 and a cleaning support 5. The cleaning support 5 is used to support the endoscope 200. The cleaning support 5 includes a first support arm 51 and a second support arm 52, which are used to support the endoscope body 210 and the connector 220, respectively. The first support arm 51 and the second support arm 52 are movably connected.

[0124] In actual use, pipes are connected to the third interface 2c of connector 2, the two cleaning interfaces 1b of the second auxiliary interface, and the negative pressure channel port 220a of the mirror body 210. The ends of the pipes are placed in the cleaning container 4. At the same time, the end of the conduit 212 is also placed in the cleaning container 4, so that the cleaning fluid in the pipes and conduit 212 flows out into the cleaning container 4.

[0125] In this embodiment, the cleaning fluid can achieve the following three flow paths depending on the insertion position of the syringe 3 during the actual cleaning process.

[0126] Reference Figure 7 The syringe 3 is connected to one of the cleaning ports 1b of the first auxiliary connector via the connector 2. The cleaning port 1b is connected to the air-water channel control port 210b of the mirror body 210. When the syringe 3 is pushed, the cleaning fluid in the syringe 3 will flow into the air-water channel control port 210b through the first auxiliary connector. Then, part of the cleaning fluid flows into the conduit 212, and the other part of the cleaning fluid flows through the connecting tube 222 to the air channel port 220c and the water channel port 220b of the connector 220, and finally flows out through the cleaning port 1b of the second auxiliary connector.

[0127] Reference Figure 8The syringe 3 is connected to another cleaning port 1b of the first auxiliary connector via the connector 2. The cleaning port 1b is connected to the negative pressure channel control port 210a of the endoscope 210. When the syringe 3 is pushed, the cleaning fluid in the syringe 3 will flow into the negative pressure channel control port 210a through the first auxiliary connector, and then flow to the connector 221 through the connecting tube 222 and flow out through the negative pressure channel port 220a.

[0128] Reference Figure 9 The syringe 3 is directly connected to the auxiliary water inlet 220d of the connector 220. When the syringe 3 is pushed, the cleaning fluid flows from the auxiliary water inlet 220d into the connector 221, and then flows through the connecting tube 222 to the conduit 212 and then out.

[0129] In the description of this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine different embodiments or examples described in this application, as well as features of different embodiments or examples.

[0130] The above description is merely a preferred embodiment of this application and is not intended to limit the 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 principles of this application should be included within the scope of protection of this application.

Claims

1. An endoscope cleaning assembly, characterized in that, The endoscope cleaning assembly includes at least one auxiliary connector, the auxiliary connector comprising: The body has at least one endoscope interface and at least one cleaning interface, the endoscope interface being in fluid communication with the cleaning interface, the endoscope interface being for detachable connection to an endoscope, and the cleaning interface being for introducing or removing cleaning fluid; and A limiting structure is provided on the body, and the limiting structure is used to restrict the relative movement between the body and the endoscope.

2. The endoscope cleaning assembly according to claim 1, characterized in that, The endoscope interface and the cleaning interface are configured in a one-to-one correspondence; and / or At least one of the auxiliary connectors has at least two endoscope interfaces; and / or At least one of the auxiliary connectors includes a handle structure connected to the body; and / or At least one of the auxiliary connectors includes a sealing structure for sealing the endoscope interface.

3. The endoscope cleaning assembly according to claim 1, characterized in that, The body includes: Adapter board; The first tube and the second tube are respectively disposed on opposite sides of the adapter plate along the thickness direction and are in fluid communication. The opening of the first tube is formed as the endoscope interface, and the opening of the second tube is formed as the cleaning interface.

4. The endoscope cleaning assembly according to claim 3, characterized in that, The limiting structure includes at least one snap-fit ​​component disposed on the side of the adapter plate facing the first tube body, the snap-fit ​​component being used to connect with the endoscope.

5. The endoscope cleaning assembly according to claim 3, characterized in that, The first tube has an expandable section for accommodating a portion of the endoscope's structure; the expandable section has an expanded state and a contracted state. The limiting structure includes a limiting member, which is movably connected to the first tube body to allow the expandable section to switch between the expanded state and the contracted state.

6. The endoscope cleaning assembly according to claim 5, characterized in that, The limiting member includes a limiting plate with a limiting through hole. The outer surface of the expandable section forms a limiting groove. In the contracted state, the expandable section passes through the limiting through hole and the limiting plate is constrained in the limiting groove along the axial direction of the first tube.

7. The endoscope cleaning assembly according to claim 3, characterized in that, The auxiliary connector also includes a sealing structure, which includes a flexible sealing tube that is nested inside the first tube body.

8. The endoscope cleaning assembly according to any one of claims 1-7, characterized in that, The endoscope cleaning assembly also includes: A connector is used to connect the cleaning interface to the cleaning fluid source. The connector includes a pipe and a valve body disposed within the pipe. The pipe has a first interface, a second interface, and a third interface. The first interface is used to communicate with the cleaning interface, the second interface is used to communicate with the cleaning fluid source, and the third interface is a backflow port. The valve body can switch between a first state and a second state under pressure. In the first state, the valve body blocks the third interface and connects the first interface and the second interface. In the second state, the valve body blocks the second interface and connects the first interface and the third interface.

9. The endoscope cleaning assembly according to any one of claims 1-7, characterized in that, The endoscope cleaning assembly includes at least two auxiliary connectors, wherein at least one auxiliary connector is used to connect to the endoscope body, and at least one auxiliary connector is used to connect to the endoscope connector, the connector being used to connect the endoscope body to an external structure and the connector being in fluid communication with the endoscope body.

10. The endoscope cleaning assembly according to any one of claims 1-7, characterized in that, The endoscope cleaning assembly includes: A syringe for connecting to the cleaning port to introduce cleaning fluid; and / or A cleaning container for holding the cleaning fluid flowing from the endoscope; and / or A cleaning bracket for supporting the endoscope; and / or A sealing element includes a plug and a flexible connector, the plug being used to seal one or more interfaces of the endoscope, and the flexible connector connecting the plug and the auxiliary connector.

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