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Multifunctional liquid medicine filter for infusion

A filter, multi-functional technology, applied in the field of medical devices, to reduce the risk of entering the human body, prevent blood return, and improve the position of the assembly

Active Publication Date: 2014-02-12
魏颖德
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the entry of air bubbles undoubtedly poses certain risks to the human body.

Method used

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  • Multifunctional liquid medicine filter for infusion
  • Multifunctional liquid medicine filter for infusion
  • Multifunctional liquid medicine filter for infusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1 to Figure 3 As shown, a multifunctional liquid medicine filter for infusion of the present invention comprises an upper casing 1, a lower casing 2 and a filter membrane 3, the upper casing 1 is connected to the lower casing 2, and the filter The membrane 3 is arranged inside the lower casing 2, and the inside of the upper casing 1 is connected with a drip platform 4, and a cavity is formed between the drip platform 4 and the inside of the upper casing 1, and the cavity An anti-blood return device is arranged inside the cavity.

[0038] The anti-bleeding device is a single-layer or multi-layered anti-bleeding film 51, and the anti-bleeding film 51 is fixed on the drip table 4, and the anti-bleeding film 51 is a paper film, an ionic film or a fiber film. The upper casing 1 and the lower casing 2 are connected in the form of thermocompression connection, ultrasonic connection, screw connection or plug-in connection.

[0039] The liquid inlet 11 of the m...

Embodiment 2

[0043] Such as Figure 4 to Figure 6As shown, the difference between this embodiment and Embodiment 1 is that the anti-bleeding device includes a fixed ring 52, the fixed ring 52 is fixed on the drip table 4, and the inner ring at the upper end of the fixed ring 52 is connected with The anti-bleeding film 51, the connection between the inner ring and the anti-bleeding film 51 is evenly arranged with a leakage port 53, the lower end of the fixed ring 52 is connected with an anti-bleeding film 51, and the anti-bleeding film 51 is a paper film, ion film or fibrous film. The medicinal liquid enters the upper housing 1 from the liquid inlet 11, passes through the anti-bleeding device, and enters the inside of the fixed ring 52 through the liquid leakage port 53, and the medicinal liquid penetrates through the anti-bleeding film 51 connected to the lower end of the fixed ring 52, and then Flow into the lower casing 2 through the drip port 41 of the drip table 4, and the filter memb...

Embodiment 3

[0047] Such as Figure 7 to Figure 8 As shown, the difference between this embodiment and Embodiment 1 is that the anti-bleeding device is a soft rubber film ring that can float on the liquid surface, and the soft rubber film ring is composed of a floating ring 54 and a soft rubber film 55. The soft rubber film 55 is fixedly laid on the floating ring 54 . Before the filter enters the medicinal liquid, the upper end surface of the soft rubber film ring and the drip port 41 is in a bonded and sealed state. When the medicinal liquid enters the upper housing 1 from the liquid inlet 11, the soft rubber film circle will float up after the medicinal liquid reaches a certain amount, and the upper end surface of the soft rubber film circle and the dripping port 41 changes from the original bonding and sealing state. In the open state, the liquid medicine flows into the lower case 2 from the drip port 41, and the filter membrane 3 inside the lower case 2 filters the liquid medicine aga...

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PUM

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Abstract

The invention relates to the technical field of medical instruments, in particular to a multifunctional liquid medicine filter for infusion. The multifunctional liquid medicine filter comprises an upper shell, a lower shell and a filter membrane. The upper shell is connected with the lower shell, the filter membrane is arranged inside the lower shell, a drop step is connected to the inside of the upper shell, a chamber is formed between the drop step and the inside of the upper shell, and a blood-return preventer is arranged inside the chamber. The liquid medicine filter has functions of blood return preventing, quick exhausting and air bubble preventing, and is directly connected to the lower side of a dropper of an infusion apparatus or a catheter close to the dropper so that assembling height is increased and the risk that residual air bubbles enter the human body after the liquid medicine filter is empty is lowered.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a multifunctional liquid medicine filter for infusion. Background technique [0002] The existing liquid medicine filter is generally composed of an upper shell, a lower shell and a filter membrane. The filter membrane is installed between the upper and lower shells to filter the liquid medicine. The liquid medicine filter has a single function and does not prevent blood return. It does not have the function of quick exhaust and anti-bubble. In the prior art, in order to achieve the above functions at the same time, the infusion set needs to be connected in series with different devices that realize the above functions. Such an infusion set has a complex structure and changes greatly. If it is to be launched on the market, it needs to be re-evaluated and verified, and apply for relevant certificates. Time-consuming, not convenient for manufacturers to produce. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/165
Inventor 魏颖德
Owner 魏颖德