Negative pressure drainage device

Abstract

The utility model discloses a negative pressure drainage device which comprises a negative pressure ball body and a sealing connector arranged on the negative pressure ball body, an upper connecting face is arranged on the upper portion of the negative pressure ball body, an upper opening is formed in the middle of the upper connecting face, one end of the sealing connector extends into the upper opening, and the sealing connector comprises an inner connecting portion, an outer connecting portion and a wrapping portion. One end of the inner connecting part is embedded into the upper connecting surface, and the other end of the inner connecting part extends out of the upper connecting surface to be connected with the outer connecting part. A clamping column is arranged on the inner connecting portion, a clamping block is arranged on the clamping column, a groove is formed in one side of the clamping column and used for containing the clamping block, a through hole is formed in the upper connecting face, and the clamping column penetrates through the through hole and is limited through the clamping block. The negative pressure drainage device is compact in structure and convenient to install, through the clamping structure of the inner connecting part and the outer connecting part, connection between the sealing connector and the negative pressure ball body is firmer, the assembling process is simple, operation is convenient, and cost is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure drainage equipment, specifically a negative pressure drainage device. Background Technology

[0002] A negative pressure drainage ball is an external container connected to a drainage catheter inserted into the body, used to drain and collect bodily fluids. It uses negative pressure to aspirate pus, exudate, effusion, and tissue fluid, and is a commonly used medical device in hospitals. After surgery, using a negative pressure drainage ball can reduce tissue damage, prevent bacterial infection caused by large amounts of fluid accumulation, effectively improve wound healing efficiency, and facilitate respiratory movements.

[0003] Currently, the sealing heads of negative pressure drainage balls mainly use threaded connections or special processing of the ball body to create grooves inside the ball. Due to its complex structure, the manufacturing cost is increased, which in turn increases the cost of use. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure drainage device that solves the problems of complex structure and high cost of existing negative pressure drainage devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a negative pressure drainage device, comprising a negative pressure ball and a sealing joint disposed on the negative pressure ball, wherein the upper part of the negative pressure ball is provided with an upper connecting surface, the upper connecting surface is provided with an upper opening in the middle, one end of the sealing joint extends into the upper opening, the sealing joint includes an inner connecting part, an outer connecting part and a wrapping part, one end of the inner connecting part is embedded in the upper connecting surface, and the other end extends out of the upper connecting surface and is connected to the outer connecting part, and the wrapping part is disposed on the outside of the outer connecting part.

[0006] As a further improvement to the above technical solution:

[0007] The inner connecting part is provided with a snap-fit ​​post, the snap-fit ​​post is provided with a snap-fit ​​block, and a groove is provided on one side of the snap-fit ​​post for accommodating the snap-fit ​​block. A through hole is provided on the upper connecting surface, the snap-fit ​​post passes through the through hole and is limited by the snap-fit ​​block.

[0008] The inner connecting portion is provided with a recess for accommodating the upper connecting surface.

[0009] The outer connecting part and the wrapping part are interference-fitted, and an adhesive layer is provided between them. The wrapping part also wraps around the upper part of the negative pressure ball, meaning that the upper part of the negative pressure ball is also coated with sealant, further increasing the sealing performance.

[0010] The upper part of the external connection part is provided with a liquid inlet pipe and a gas pipe.

[0011] The negative pressure sphere is equipped with a liquid outlet pipe at its lower part.

[0012] The package section is provided with a hook, and the hook is provided with a tube clamp.

[0013] A sealing clamp is provided on the liquid outlet pipe.

[0014] The negative pressure sphere is equipped with a scale.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] Compact structure and easy installation: The snap-fit ​​structure of the inner and outer connecting parts ensures a more secure connection between the sealing joint and the negative pressure ball, and the assembly process is simple and easy to operate. The simple assembly process effectively reduces costs. It solves the problems of complex structure and high cost in negative pressure drainage devices. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the guide pin structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the end cap structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom mounting base structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the guide pin assembly structure of this utility model;

[0021] Figure 5 This is one of the structural schematic diagrams of the negative pressure drainage device of this utility model.

[0022] Reference numerals: 1. Negative pressure sphere; 11. Upper connecting surface; 12. Liquid outlet pipe; 121. Sealing clamp; 2. Sealing joint; 21. Inner connecting part; 211. Snap-fit ​​post; 212. Snap-fit ​​block; 22. Outer connecting part; 221. Liquid inlet pipe; 222. Air pipe; 23. Wrapping part; 231. Hook; 232. Pipe clamp; 13. Scale. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating orientation or position, are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1 to 3 As shown, the negative pressure drainage device of this embodiment includes a negative pressure ball 1 and a sealing joint 2 disposed on the negative pressure ball 1. The upper part of the negative pressure ball 1 is provided with an upper connecting surface 11, and the upper connecting surface 11 is provided with an upper opening in the middle. One end of the sealing joint 2 extends into the upper opening. The sealing joint 2 includes an inner connecting part 21, an outer connecting part 22 and a wrapping part 23. One end of the inner connecting part 21 is embedded in the upper connecting surface 11, and the other end extends out of the upper connecting surface 11 and is connected to the outer connecting part 22. The wrapping part 23 is disposed on the outside of the outer connecting part 22.

[0028] The inner connecting part 21 is provided with a snap-fit ​​post 211, and a snap-fit ​​block 212 is provided on the snap-fit ​​post 211. A groove is provided on one side of the snap-fit ​​post 211 for accommodating the snap-fit ​​block 212. A through hole is provided on the upper connecting surface 11. The snap-fit ​​post 211 passes through the through hole and is limited by the snap-fit ​​block 212.

[0029] The inner connecting part 21 is provided with a recess for accommodating the upper connecting surface 11.

[0030] The outer connecting part 22 and the wrapping part 23 are interference fit, and an adhesive layer is provided between the outer connecting part 22 and the wrapping part 23.

[0031] During assembly, four mounting holes are first made on the upper connecting surface 11 of the negative pressure sphere 1, corresponding to the number of locking posts 211 on the inner connecting part 21. The inner connecting part 21 is then inserted into the holes and pressed against it. The outer connecting part 22 is then installed above the inner connecting part 21. At this point, the upper connecting surface 11 is compressed, causing the locking posts 211 to extend into the outer connecting part 22 until the locking block 212 protrudes from the surface. The assembly of the inner connecting part 21 and the outer connecting part 22 is completed by the locking block 212 extending. Next, sealant is applied to the surface of the outer connecting part 22, and the wrapping part 23 is pressed onto the outer connecting part 22.

[0032] The upper part of the external connection part 22 is provided with a liquid inlet pipe 221 and an air pipe 222. The lower part of the liquid inlet pipe 221 is provided with a one-way valve, which only allows liquid to enter and prevents gas from being discharged. The air pipe 222 is used for air discharge. After the negative pressure ball 1 is squeezed, the gas is discharged from the air pipe 222. The air pipe 222 is provided with an air cap. When the air pipe is closed, a negative pressure is formed inside the negative pressure ball 1, which allows liquid to enter from the liquid inlet pipe 221.

[0033] The negative pressure drainage device of this invention has high structural reliability and simple assembly process. It can be assembled manually or mechanically and is suitable for small factory processing.

[0034] like Figure 4 and Figure 5 As shown, a liquid outlet pipe 12 is provided at the lower part of the negative pressure sphere 1. When there is excess liquid in the negative pressure sphere 1, it is discharged through the liquid outlet pipe 12.

[0035] The wrapping part 23 is provided with a hook 231, and a pipe clamp is provided on the hook 231. The pipe clamp is used to clamp the liquid inlet pipe 221 and stop the liquid inlet.

[0036] A sealing clip 121 is provided on the liquid outlet pipe 12. The sealing clip 121 is used to prevent the liquid outlet pipe 12 from being open.

[0037] A scale 13 is provided on the negative pressure sphere 1. The scale 13 is designed to facilitate observation of the liquid volume.

[0038] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A negative pressure drainage device, comprising a negative pressure ball (1) and a sealing joint (2) disposed on the negative pressure ball (1), characterized in that: The negative pressure ball (1) has an upper connecting surface (11) on its upper part. The upper connecting surface (11) has an upper opening in the middle. One end of the sealing joint (2) extends into the upper opening. The sealing joint (2) includes an inner connecting part (21), an outer connecting part (22), and a wrapping part (23). One end of the inner connecting part (21) is embedded in the upper connecting surface (11), and the other end extends out of the upper connecting surface (11) and connects with the outer connecting part (22). The wrapping part (23) is located outside the outer connecting part (22).

2. The negative pressure drainage device according to claim 1, characterized in that: The inner connecting part (21) is provided with a snap-fit ​​post (211), and a snap-fit ​​block (212) is provided on the snap-fit ​​post (211). A groove is provided on one side of the snap-fit ​​post (211) for accommodating the snap-fit ​​block (212). A through hole is provided on the upper connecting surface (11). The snap-fit ​​post (211) passes through the through hole and is limited by the snap-fit ​​block (212).

3. The negative pressure drainage device according to claim 1 or 2, characterized in that: The inner connecting part (21) is provided with a recess for accommodating the upper connecting surface (11).

4. The negative pressure drainage device according to claim 3, characterized in that: The outer connecting part (22) and the wrapping part (23) are interference fit, and an adhesive layer is provided between the outer connecting part (22) and the wrapping part (23).

5. The negative pressure drainage device according to claim 4, characterized in that: The upper part of the external connection part (22) is provided with a liquid inlet pipe (221) and an air pipe (222).

6. The negative pressure drainage device according to claim 3, characterized in that: The negative pressure sphere (1) is provided with a liquid outlet pipe (12) at its lower part.

7. The negative pressure drainage device according to claim 3, characterized in that: The package part (23) is provided with a hook (231), and the hook (231) is provided with a tube clamp (232).

8. The negative pressure drainage device according to claim 6, characterized in that: A sealing clamp (121) is provided on the liquid outlet pipe (12).

9. The negative pressure drainage device according to claim 3, characterized in that: The negative pressure sphere (1) is equipped with a scale (13).

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