Adjustable negative pressure anti-reflux drainage device
By introducing an anti-counterflow valve into the adjustable negative pressure drainage device, the problem of infection caused by the drainage liquid is solved, and safe drainage under the negative pressure state is achieved.
Patent Information
- Application Number
- CN202421711511.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-19
AI Technical Summary
The existing adjustable negative pressure drainers lack anti-counterflow devices, which leads to the drainage fluid that may reverse flow under no negative pressure, causing infection.
An adjustable negative pressure anti-counter-current drainage device including a negative pressure drainage bottle, a negative pressure regulator and an anti-counter-current valve is designed. The anti-counter-current valve is a duckbill valve, which is connected to the negative pressure regulator through a pressure regulating chamber connection pipe, and is equipped with a manual negative pressure source to control the negative pressure state.
It effectively avoids the countercurrent of drainage fluid under no negative pressure and reduces the risk of infection.
Smart Images
Figure CN223158638U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical devices, in particular to a disposable adjustable negative pressure anti-reflux drainage device. Background Art
[0002] Adjustable negative pressure drainage devices are applied to drain residual fluid and exudate from the wounds of patients after clinical surgery. However, there is no anti-reflux device in the current adjustable negative pressure drainage devices, which may cause infections due to reflux when the drainage bottle has no pressure during clinical use. Summary of the Invention
[0003] The purpose of the utility model is to provide a disposable adjustable negative pressure anti-reflux drainage device that can be set with negative pressure and prevent reflux.
[0004] To solve these problems in the prior art, the technical solution provided by the utility model is an adjustable negative pressure anti-reflux drainage device, which includes a negative pressure drainage bottle and a negative pressure regulator. The adjustable negative pressure anti-reflux drainage device is provided with an anti-reflux valve.
[0005] In a preferred implementation state, a pressure regulating chamber connecting pipe is arranged inside the negative pressure drainage bottle body. The pressure regulating chamber connecting pipe connects the pressure regulating chamber in the negative pressure regulator with the external joint of the drainage bottle. An anti-reflux valve is arranged at the liquid inlet of the inner cavity of the pressure regulating chamber connecting pipe.
[0006] In a preferred implementation state, the anti-reflux valve is a duckbill valve.
[0007] In a preferred implementation state, the adjustable negative pressure anti-reflux drainage device further includes a manual negative pressure source.
[0008] In a preferred implementation state, the manual negative pressure source is provided with a lifting or pressing or / and clamping and squeezing air extraction handle.
[0009] All the above spatial orientations are described according to the normal upright state of the product.
[0010] Compared with the solutions in the prior art, the advantages of the utility model are:
[0011] Avoid the occurrence of infections caused by the reverse flow of drainage fluid that may occur when the adjustable negative pressure anti-reflux drainage device has no negative pressure. Brief Description of the Drawings
[0012] The structures, proportions, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.
[0013] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.
[0014] The digital markings shown in the figure represent:
[0015] 1. Manual negative pressure source; 2. Negative pressure regulator; 3. Duckbill valve; 4. Pressure regulating chamber connecting pipe. Specific embodiments
[0016] The above solutions will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are used to illustrate the present utility model rather than to limit the scope of the present utility model. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional production. Embodiment 1
[0017] As Figure 1 shown, this embodiment includes a negative pressure drainage bottle and a negative pressure regulator 2. The adjustable negative pressure anti-backflow drainage device is provided with an anti-backflow valve.
[0018] In this example, the anti-backflow valve can also be placed on the liquid inlet pipeline of the negative pressure drainage bottle, which can prevent the backflow of the drainage liquid. Embodiment 2
[0019] As Figure 1 shown, this embodiment includes a negative pressure drainage bottle and a negative pressure regulator 2. The negative pressure drainage bottle body is internally provided with a pressure regulating chamber connecting pipe 4 to connect the pressure regulating chamber in the negative pressure regulator 2 with the external joint or pipeline of the drainage bottle. An anti-backflow valve is arranged at the liquid inlet of the inner cavity of the pressure regulating chamber connecting pipe 4, and the anti-backflow valve is a duckbill valve 3; it also includes a manual negative pressure source 1; the manual negative pressure source 1 is provided with a pulling or pressing or / and clamping and squeezing air extraction handle.
[0020] In this example, the anti-backflow valve is a duckbill valve 3 placed inside the cover pipeline, with a simpler structure and better anti-backflow effect.
[0021] The above has introduced in detail the adjustable negative-pressure anti-backflow drainage device provided by the present utility model. The principle and implementation manner of the present utility model have been expounded herein. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.
Claims
1. An adjustable negative pressure anti-reflux drainage device, comprising a negative pressure drainage bottle and a negative pressure regulator, characterized in that, The adjustable negative pressure anti-reflux drainage device is provided with an anti-reflux valve; an adjustable pressure chamber connecting pipe is arranged inside the negative pressure drainage bottle, and the adjustable pressure chamber connecting pipe connects the adjustable pressure chamber in the negative pressure regulator and the external joint of the drainage bottle. An anti-reflux valve is arranged at the liquid inlet of the inner cavity of the adjustable pressure chamber connecting pipe, and the anti-reflux valve is a duckbill valve.
2. The adjustable negative-pressure anti-reflux drainage device according to claim 1, wherein The adjustable negative pressure anti-reflux drainage device further includes a manual negative pressure source.
3. The adjustable negative pressure anti-reflux drainage device according to claim 2, wherein, The manual negative pressure source is provided with a lifting or pressing or / and clamping and squeezing air extraction handle.