Endoscope suction connector assembly and endoscope

Abstract

The utility model provides an endoscope suction connector assembly and an endoscope. The endoscope suction connector assembly comprises a fixing base; the connector body is fixedly installed on the fixing base, a first inner cavity and an insertion cavity which communicate with each other are defined by the connector body, a first insertion head is arranged on the outer wall face, at least deviating from the fixing base, of the insertion cavity, and the first insertion head is used for being connected with an attraction device; the plug-in unit is used for being fixed with the plug-in cavity in a plug-in fit manner; a second inner cavity is defined by the second connecting plug, and the second connecting plug is used for being externally connected with a suction tube of an endoscope; and the connecting pipe is used for connecting the inner inserting piece and the outer inserting piece. The air tightness and the reliability of connection of the suction connector assembly of the endoscope are effectively improved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to an endoscope suction connector assembly. It also relates to an endoscope including the aforementioned endoscope suction connector assembly. Background Technology

[0002] The endoscopic suction connector is a key component of medical endoscopes, primarily used to connect suction devices to help remove fluids, blood, or tissue debris during surgery or examinations, ensuring a clear field of view. The airtightness and reliability of the suction connector are crucial factors affecting its performance and directly determining the success of the surgery. Therefore, improving the airtightness and reliability of the suction connector is a major research direction in the medical field. Utility Model Content

[0003] This application provides an endoscope suction connector assembly, which effectively improves the airtightness and reliability of the endoscope suction connector assembly connection.

[0004] In a first aspect, this application provides an endoscope suction connector assembly, including a fixing base, and further comprising:

[0005] The connector body is fixedly installed on the fixed base. The connector body encloses and forms a first inner cavity and a plug-in cavity that are connected. The plug-in cavity is provided with a first plug-in at least on the outer wall surface opposite to the fixed base. The first plug-in is used to connect to the suction device.

[0006] An inner insert, which is used to be inserted and fixed to the insertion cavity;

[0007] The second connector forms a second inner cavity, and the second connector is used to connect the suction tube of the endoscope.

[0008] A connecting tube is used to connect the inner plug and the second connector.

[0009] In some embodiments, the first connector includes a positioning head, a second conical head, and a first conical head arranged sequentially along a first direction and away from the second connector. The orthographic projection of the first conical head on the fixed base at least partially overlaps with the orthographic projection of the second conical head on the fixed base and the orthographic projection of the positioning head on the fixed base.

[0010] In some embodiments, the orthographic projection of the first conical head onto the fixed base is located within the orthographic projection of the second conical head onto the fixed base, and the orthographic projection of the second conical head onto the fixed base is located within the orthographic projection of the positioning head onto the fixed base.

[0011] In some embodiments, the fixing seat is provided with a sealing part, the sealing part is provided with a first sealing surface, and the positioning head is provided with a second sealing surface on the side facing the sealing part, the second sealing surface being used to seal and connect with the first sealing surface.

[0012] In some embodiments, the connector body further includes a wrench operating part disposed between the second conical head and the positioning head for wrench operation.

[0013] In some embodiments, a first end of the connecting tube extends through the inner insert, and the end face of the first end is flush with the end face of the inner insert.

[0014] In some embodiments, the bottom of the insertion cavity is provided with a placement groove, a sealing ring is provided inside the placement groove, and the end face of the inner plug facing the placement groove is provided with a clearance chamfer. The clearance chamfer and the side wall and bottom surface of the insertion cavity form a clearance space for clearance of the sealing ring.

[0015] In some embodiments, the end face is a circular end face, and the diameter of the end face is less than or equal to the inner diameter of the sealing ring.

[0016] In some embodiments, the outer peripheral surface of the second connector is provided with a tapered surface, the tapered surface gradually narrowing along a second direction and away from the direction of the connecting pipe, the second direction being intersecting the first direction.

[0017] Secondly, this application also provides an endoscope including the endoscope suction connector assembly described in any of the above claims. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of an endoscope suction connector assembly provided in some embodiments of this application;

[0020] Figure 2 Another structural schematic diagram of the endoscope suction connector assembly provided in some embodiments of this application (fixture not shown);

[0021] Figure 3 A structural schematic diagram of the endoscope suction connector assembly provided in some embodiments of this application from another perspective (fixture not shown).

[0022] Figure 4 for Figure 3 A sectional view;

[0023] Figure 5 An exploded view of an endoscope suction connector assembly provided in some embodiments of this application.

[0024] The attached figures are labeled as follows:

[0025] 1-Fixed base; 2-Connector body; 3-Inner insert; 4-Second connector; 5-Connecting tube;

[0026] 11-Sealing part; 21-First inner cavity; 22-Insertion cavity; 23-First insertion connector; 41-Second inner cavity; 42-Conical surface;

[0027] 221-Placement groove; 222-Sealing ring; 223-Alignment chamfer; 231-First conical head; 232-Second conical head; 233-Positioning head; 234-Wrench operating part;

[0028] 2331 - Second sealing surface;

[0029] X, the first direction; Y, the second direction. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0032] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0035] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0036] In this application, "multiple" means two or more (including two).

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of an endoscope suction connector assembly provided in some embodiments of this application. Figure 2 This is a structural schematic diagram from another perspective of the endoscope suction connector assembly provided in some embodiments of this application. Figure 3 This is a structural schematic diagram from another perspective of the endoscope suction connector assembly provided in some embodiments of this application.

[0038] This application provides an endoscope suction connector assembly, mainly comprising: a mounting base 1, a connector body 2, an inner insert 3, a second connector 4, and a connecting tube 5. The connector body 2 is mounted on the mounting base 1, optionally externally. The connector body 2 encloses a first inner cavity 21 and a insertion cavity 22, which are connected and can communicate along a first direction, are coaxially distributed, and penetrate the connector body 2 and the mounting base 1 to form a channel for fluid or object passage. A first connector 23 is disposed externally on the insertion cavity 22, at least partially disposed on the outer wall surface of the insertion cavity 22 opposite to the mounting base 1. The first connector 23 is fixedly connected to the outer wall surface of the insertion cavity 22, or integrally formed therefrom.

[0039] The inner plug 3 is inserted into and connected to the connector body 2 to secure the two. Specifically, one end of the inner plug 3 is connected to the connector body 2, and the other end of the inner plug 3 is connected to the connecting tube 5. The first end of the connecting tube 5 passes through the hollow inner plug 3, and the end face of the first end of the connecting tube 5 is flush with the end face of the inner plug 3. The inner plug 3 is inserted into the insertion cavity 22 of the connector body 2.

[0040] refer to Figure 4 To facilitate cleaning of the connecting pipe 5, the connecting pipe 5 can be designed as an integral pipe structure. Compared with the current connecting pipe 5, the length of the connecting pipe 5 can be effectively extended. On the one hand, by extending the design of the connecting pipe 5, it is possible to effectively avoid the occurrence of discontinuities and gaps at the connection point during processing and due to short-circuiting of the sleeve, so that the cleaning brush can pass through the connecting pipe 5 more smoothly, ensuring that the cleaning brush passes through smoothly, thereby avoiding the cleaning brush getting stuck during cleaning and affecting the passage of the cleaning brush, and improving the stability and reliability of the suction joint.

[0041] Optionally, the inner insert 3 and the connector body 2 are airtightly connected, for example, by a sealing ring 222 or a metal seal. The inner insert 3 enables an airtight connection between the connecting pipe 5 and the connector body 2.

[0042] The second connector 4 encloses and forms a second inner cavity 41. The second inner cavity 41 can be a cavity extending through the second connector 4. The second inner cavity 41 is connected to the first inner cavity 21, the inner cavity of the inner plug 3, and the pipe of the connecting tube 5, thereby forming a channel for fluid or objects to pass through. The suction tube of the endoscope is externally connected to the second connector 4.

[0043] Optionally, the connector body 2 is externally connected to a suction device such as a pump body to facilitate suction operations during surgery. The first connector 23 of the connector body 2 is externally connected to an endoscopic suction tube. The suction device may include a pump body to provide suction, thereby extracting liquids, blood, or tissue fragments during surgery or examination, facilitating removal operations during surgery or examination.

[0044] The operation process of using the endoscopic suction connector assembly of this application is as follows:

[0045] First, an endoscope is inserted into the patient's body for examination and treatment;

[0046] Secondly, by connecting the suction connector to the suction device, negative pressure is generated at the suction port to suction secretions, tissue fragments, etc.

[0047] Next, the cleaning brush passes through the suction connector assembly to clean the internal area.

[0048] The endoscope suction connector assembly provided in this application embodiment connects the second connector 4 of the endoscope suction connector assembly to the endoscope suction tube, and the connector body 2 of the endoscope suction connector assembly is connected to the suction device. The suction device is used to perform suction operation. Through the plug-in connection of each component, the reliability of the endoscope suction connector assembly connection is significantly improved.

[0049] like Figure 3 As shown. In one specific embodiment, the first connector 23 includes a positioning head 233, a second conical head 232, and a first conical head 231 arranged sequentially along a first direction and away from the second connector 4. The orthographic projection of the first conical head 231 onto the fixed base 1 at least partially overlaps with the orthographic projection of the second conical head 232 onto the fixed base 1 and the orthographic projection of the positioning head 233 onto the fixed base 1.

[0050] When the first connector 23 is inserted into the hose of the suction device, the first conical head 231 guides and positions the connector with the hose. After insertion, it is pushed further into the hose, and the second conical head 232 achieves a sealed connection with the hose. This allows for precise, rapid, and smooth insertion of the first connector 23 into the suction device, while ensuring the airtightness and reliability of the connection between the first connector 23 and the hose. After insertion using the first conical head 231 and the second conical head 232, the positioning head 233 positions the connector with the fixed base 1.

[0051] Furthermore, the top of the fixed base 1 is provided with a sealing cavity, and a sealing element is provided inside the sealing cavity. The positioning head 233 cooperates with the top of the sealing cavity to seal the sealing element, thereby ensuring a tight connection between the connector body 2 and the fixed base 1 and preventing leakage.

[0052] To ensure the reliability of the seal between the fixed seat 1 and the connector body 2, the positioning head 233 is provided with a second sealing surface 2331 on the side facing the fixed seat 1. Correspondingly, the fixed seat 1 is provided with a sealing part 11. The outer surface of the sealing part 11 is provided with a first sealing surface. After the connector body 2 and the fixed seat 1 are inserted and fixed, the second sealing surface 2331 fits against the first sealing surface to ensure the sealed connection between the fixed seat 1 and the connector body 2.

[0053] The second sealing surface 2331 of the positioning head 233 can be a plane. Correspondingly, the first sealing surface of the sealing part 11 can be a plane. In addition, the first sealing surface and the second sealing surface 2331 can also be a V-shaped surface, a U-shaped surface, a trapezoidal surface, a rectangular surface, an arc surface, etc. The embodiments of this application are not limited in this respect.

[0054] When the fixed seat 1 is connected to the connector body 2, an end face sealing scheme is adopted. By fully fitting the connecting surfaces, the sealing element in the sealing cavity at the top of the fixed seat 1 is pressed and sealed to improve the reliability of the sealing connection between the fixed seat 1 and the connector body 2.

[0055] A wrench operating part 234 is also provided on the connector body 2 between the second conical head 232 and the positioning head 233. This wrench operating part 234 is compatible with a wrench for wrench operation, facilitating the installation of the connector body 2 onto the fixing base 1. Specifically, the wrench operating part 234 can be two opposing planar areas on the connector body 2 located between the second conical head 232 and the positioning head 233 and vertically distributed along a first direction. The two clamping surfaces of the wrench operating part 234 act on the two planar areas respectively for installation, making the installation operation more labor-saving.

[0056] To ensure a reliable connection between the connector body 2 and the inner plug 3, the inner plug 3 and the connector body 2 can be connected by threaded connection, magnetic connection, interference fit connection, or snap-fit ​​connection, etc., to improve the tightness of the connection between the two.

[0057] like Figure 4 and Figure 5 As shown. Further, the bottom of the insertion cavity 22 is provided with a placement groove 221, and a sealing ring 222 is provided inside the placement groove 221. The end face of the inner plug 3 facing the placement groove 221 is provided with an avoidance chamfer 223. The avoidance chamfer 223 forms an avoidance space with the side wall and bottom surface of the insertion cavity 22, so as to avoid the sealing ring 222.

[0058] Compared to the chamferless structure of the inner plug-in 3, during the assembly process of the inner plug-in 3, the sealing ring 222 is flattened and squeezed towards the center of the insertion cavity 22, which will cause the channel to become smaller, resulting in unstable sealing effect and inability to achieve reliable sealing function. In addition, it occupies channel space, making the effective channel smaller.

[0059] In this embodiment, by setting an avoidance chamfer 223 on the insertion end face of the inner plug 3, after assembly, the sealing ring 222 will not be squeezed towards the middle but will apply the squeezing force to the inclined surface. This can protect the middle channel of the insertion cavity 22 from being blocked, and at the same time enhance the reliability of the seal, combining the effects of radial sealing and end face sealing.

[0060] Furthermore, taking the end face of the inner plug-in 3 as a circular end face as an example, the diameter of the end face of the inner plug-in 3 can be less than or equal to the inner diameter of the sealing ring 222 in order to reduce the contact during the insertion process. The sealing ring 222 seals the external space of the inner plug-in 3, thereby further improving the effectiveness of the seal.

[0061] refer to Figure 4 Furthermore, to improve the sealing performance of the connection between the second connector 4 and the suction tube, the outer circumferential surface of the second connector 4 is provided with a tapered surface 42. The tapered surface 42 is gradually tapered along the second direction and away from the direction of the connecting tube 5, and the second direction intersects with the first direction. During insertion, the tapered surface 42 can guide the second connector 4 to quickly connect to the suction tube, and the large-diameter end of the second connector 4 cooperates with the wall of the suction tube to achieve a seal.

[0062] This application aims to improve the connection of the endoscope suction connector and provides a new suction connector assembly. The connecting tube 5 is connected to the connector body 2 by an inner plug 3. The connector body 2 is connected to the suction device. The connecting tube 5 is connected to the endoscope suction tube by a second plug 4, which improves the sealing and reliability of the connector connection.

[0063] In addition, this application also provides an endoscope, including the endoscope suction connector assembly provided in the above embodiments of this application, which has stable and reliable performance and a long service life.

[0064] The endoscopic suction connector assembly and endoscope provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. An endoscope suction connector assembly, comprising a fixing base (1), characterized in that, Also includes: The connector body (2) is fixedly installed on the fixed base (1). The connector body (2) forms a first inner cavity (21) and a plug cavity (22) that are connected. The plug cavity (22) has a first plug (23) on its outer wall surface that is at least away from the fixed base (1). The first plug (23) is used to connect the suction device. An inner insert (3) is used to be inserted and fixed with the insertion cavity (22); The second connector (4) forms a second inner cavity (41), and the second connector (4) is used to connect the suction tube of the endoscope. Connecting tube (5) is used to connect the inner plug (3) to the second connector (4).

2. The endoscope suction connector assembly according to claim 1, characterized in that, The first connector (23) includes a positioning head (233), a second conical head (232) and a first conical head (231) arranged sequentially along a first direction and away from the second connector (4). The orthographic projection of the first conical head (231) on the fixed base (1) is at least partially coincident with the orthographic projection of the second conical head (232) on the fixed base (1) and the orthographic projection of the positioning head (233) on the fixed base (1).

3. The endoscope suction connector assembly according to claim 2, characterized in that, The first conical head (231) is projected onto the fixed base (1), and the second conical head (232) is projected onto the fixed base (1).

4. The endoscope suction connector assembly according to claim 3, characterized in that, The fixed base (1) is provided with a sealing part (11), the sealing part (11) is provided with a first sealing surface, and the positioning head (233) is provided with a second sealing surface (2331) on the side facing the sealing part (11), the second sealing surface (2331) is used to seal and connect with the first sealing surface.

5. The endoscope suction connector assembly according to claim 2, characterized in that, The connector body (2) also includes a wrench operating part (234) disposed between the second conical head (232) and the positioning head (233) for wrench operation.

6. The endoscope suction connector assembly according to claim 1, characterized in that, The first end of the connecting tube (5) passes through the inner plug (3), and the end face of the first end is flush with the end face of the inner plug (3).

7. The endoscope suction connector assembly according to any one of claims 1 to 6, characterized in that, The bottom of the insertion cavity (22) is provided with a placement groove (221), and a sealing ring (222) is provided inside the placement groove (221). The end face of the inner plug (3) facing the placement groove (221) is provided with a chamfer (223). The chamfer (223) and the side wall and bottom surface of the insertion cavity (22) form a clearance space for avoiding the sealing ring (222).

8. The endoscope suction connector assembly according to claim 7, characterized in that, The end face is a circular end face, and the diameter of the end face is less than or equal to the inner diameter of the sealing ring (222).

9. The endoscope suction connector assembly according to claim 2, characterized in that, The outer peripheral surface of the second connector (4) is provided with a tapered surface (42), which gradually tapers along the second direction and away from the connecting pipe (5), and the second direction is intersecting with the first direction.

10. An endoscope, characterized in that, Includes the endoscope suction connector assembly as described in any one of claims 1 to 9 above.

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