CN202366243U - Disposable anti-reflowing air purifying precision filtering infusion set - Google Patents

Abstract

The utility model discloses a disposable anti-reflowing air purifying precision filtering infusion set, which comprises a precision vein transfusion device and an anti-reflowing air purifying device, wherein the precision vein transfusion device is connected with the anti-reflowing air purifying device, and is communicated with an internal pipeline; the air outlet of the anti-reflowing air purifying device is communicated with the air inlet of the precision vein transfusion device; the precision vein transfusion device is provided with a transfusion tube, a precision filtering micro-pore filtering film, a flow adjusting valve and a needle head; the anti-reflowing air purifying device is tubular or circular, and is provided with an air outlet, an anti-reflowing chamber, an air purifying chamber and an air inlet; two small chambers are formed in the anti-reflowing chamber; Y-shaped hard plastic and a plastic gasket form the first anti-reflowing chamber; a plastic floating ball and the other Y-shaped hard plastic form the second anti-reflowing chamber; and the air-purifying chamber is communicated with the air inlet of the infusion tube.

Description

Disposable use anti-return air cleaning precision filter infusion set

Technical field

This utility model relates to a kind of medical venous transfusion device, specifically is meant disposable use anti-return air cleaning precision filter infusion set.Go into technical field and describe paragraph.

Background technology

Infusion treatment is one of treatment means at present commonly used, has rapid-actionly, damages little advantage, is easy to accepted by the patient.In the venous transfusion art, liquid because of action of gravity through tube for transfusion and injection needle, splash among the vein; Simultaneously, air leans on atmospheric pressure constantly to get in the bottle same liquid mixing; If the air of transfusion environment is unholiness; Just body be possibly endanger, pyrogen reaction, antigenicity or carcinogenecity reaction, pulmonary arteritis, lung granuloma and blood capillary thromboembolism caused, so sepsis, septicemia and death.Venous transfusion is a kind of semi-open system, makes because of exhaustor that liquid communicates with outside air in the bottle, though have filter membrane to exist at the exhaust pipe mouth place, is not enough to contacting of air-isolation and liquid.All the time, make airborne particulate matter get into this problem of transfusion liquid through transfusion device, people have had more understanding and research; Also produced corresponding product; Like precision filter infusion set, disposable use precision filter infusion set is equipped with 0.3 micron medical micro porouse filter membrane of a slice at air inlet band air filter in the YYO286.1-2007 standard in the filter; Can reduce the pollution of air particle to a certain extent to transfusion liquid; But can not remove the poisonous metal chemical compound in airborne sulfur dioxide, nitrogen dioxide and the floating dust, therefore in use still exist deficiency, patent CN200820136306.X discloses a kind of disposable use air cleaning precision filter infusion set; Handle to gasiform harmful components sulfur dioxide, nitrogen dioxide in the air; But it in use still exists wretched insufficiency, and the carbonate of its use and glycerin, triethanolamine, sulfamic acid all are the reagent of solution soluble in water, when transfusion device inserts the medicinal liquid bottle, produces the negative pressure medicinal liquid and is back to air purifying room; Thereby be dissolved in the medicinal liquid, cause the medicinal liquid secondary pollution; Glycerin, triethanolamine also have certain volatility simultaneously, also are easy to cause the medicinal liquid secondary pollution.Therefore the applicant has developed following new technique.

The utility model content

The purpose of this utility model is to provide a kind of disposable use anti-return air cleaning precision filter infusion set; This disposable use air anti-return purifies precision filter infusion set can prevent effectively that the floating dust granule gets into transfusion device in the air; This disposable use air cleaning precision filter infusion set can filter removal with airborne sulfur dioxide and nitrogen dioxide simultaneously; Can prevent effectively that also medicinal liquid from flowing backward to air purifier, guarantee the pure of input human body medicinal liquid.To achieve these goals; The technical solution of this utility model is: a kind of disposable use anti-return air cleaning precision filter infusion set; Comprise by accurate vein infusion set and anti-return air cleaner and forming; Accurate vein infusion set is connected with the anti-return air cleaner, and the gas outlet of anti-return air cleaner is connected with the air inlet of accurate vein infusion set, and described accurate vein infusion set is provided with

Tube for transfusion, secondary filter device, Mohs burette, flow control valve and syringe needle, described anti-return air cleaner is provided with gas outlet, anti-return chamber, air purifying room, air inlet; Be provided with two cells successively in air inlet to gas outlet, be respectively air purifying room, anti-return chamber, air purifying room communicates with air inlet, and the anti-return chamber communicates with the gas outlet, and anti-return chamber, air purifying room, place, gas outlet are provided with the PES microporous filter membrane.This utility model thrusts syringe needle by transfusion person's vein in use, and air flows into the air inlet of accurate vein infusion set through after purifying at air cleaner through the gas outlet of anti-return chamber.After adopting such scheme, airborne various harmful components are removed fully, have guaranteed the safety of transfusion.This utility model invention, simple in structure, assembling is easy, and volume is little, and is in light weight, safe and convenient to use.

Description of drawings:

Fig. 1 is the primary structure sketch map of this utility model;

Fig. 2 is this utility model anti-return air cleaner structural representation;

Fig. 3 is this utility model anti-return air cleaner utilization structure cutaway view.

The figure number explanation:

A, accurate vein infusion set B, anti-return air cleaner

1, rigid plastics bend pipe 2, Y type rigid plastics 3,7,9 microporous filter membrane 4, be with foraminous plastic sheet 5, plastic spacer 6, plastics ball float 8, granule air purifier 10, plastic spacer.

The specific embodiment

Like Fig. 1, Fig. 2, shown in Figure 3; Disposable use anti-return air cleaning precision filter infusion set; Comprise by accurate vein infusion set A and anti-return air cleaner B and forming that accurate vein infusion set A is connected with anti-return air cleaner B, and internal pipeline is connected; The gas outlet of anti-return air cleaner B is connected with the air inlet of accurate vein infusion set A; Wherein said accurate vein infusion set A is provided with tube for transfusion, secondary filter microporous filter membrane, flow control valve and syringe needle, and described accurate vein infusion set A is identical with existing common accurate vein infusion set, so this utility model no longer details at this; Described anti-return air cleaner is tubular or circular configuration, and it is provided with gas outlet, anti-return chamber, air purifying room, air inlet, and wherein there are two cells the anti-return chamber, and Y type rigid plastics and plastic spacer are formed the first anti-return chamber; The plastics ball float is formed the second anti-return chamber with another Y type rigid plastics; Air purifying room communicates with air inlet, and the place is equipped with microporous filter membrane near air inlet/outlet.Said air purifying room, be provided with 0.2 μ mPVDF microporous filter membrane can effectively purify air in antibacterial in suspended particulates and the filtered air; The solid particle cleanser that sour gas such as not filtrable harmful nitrogen dioxide, sulfur dioxide are made up of metallic oxides such as containing aluminum, ferrum, copper in the air is adsorbed and decompose.When this utility model used in intravenous injection, when the nurse squeezed emptying gas, the liquid in the infusion bottle got into B anti-return air cleaner by bottle through 1 rigid plastics bend pipe under pressure; Under 2 stopping, there is part to get into the first anti-return chamber, further stop by 5 plastic spacers; When liquid was full of the first anti-return chamber, plastic spacer sealed to prevent that medicinal liquid from further infiltrating automatically, when very big as if squeezing pressure; The medicinal liquid that has part is when the automatic sealing of plastic spacer advances into the second anti-return chamber, and 6 plastics ball floats in the second anti-return chamber float automatically, seal 2Y type rigid plastics automatically; Stop medicinal liquid to enter into air purifying room fully to reach, thereby make medicinal liquid enter into tube for transfusion by 1 smoothly, medicinal liquid is back in the tube for transfusion this moment again; Open again the gas passage, and 6 plastics ball floats fall automatically, and 5 plastic spacers are opened automatically; Air is through after purifying at air cleaner; Flow into the air inlet of venous transfusion device through the gas outlet that is provided with microporous filter membrane, effectively guaranteed the pure of air, also prevented medicinal liquid secondary pollution in use simultaneously.The disposable use anti-return of this utility model air cleaning precision filter infusion set air cleaning employing and sulfur dioxide, nitrogen dioxide are prone to the metal oxide in form of particles of effect, sulfur dioxide in the air of can degrading rapidly, nitrogen dioxide pollutant.0.2 the coupling of μ mPVDF microporous filter membrane, the floating dust in can traps air, pathogen, mycete etc.This utility model is simple in structure, and assembling is easy, and volume is little, and is in light weight, safe and convenient to use.Above embodiment only supplies to explain the usefulness of this utility model, but not to the restriction of this utility model, the technical staff in relevant technologies field under the situation of spirit that does not break away from this utility model and scope, can also make various conversion or variation.Therefore, all technical schemes that are equal to also should belong to the category of this utility model, should be limited each claim.

Claims (1)

1. disposable use anti-return air cleaning precision filter infusion set; Comprise by accurate vein infusion set and anti-return air cleaner and forming; Accurate vein infusion set is connected with the anti-return air cleaner; And internal pipeline is connected, and the gas outlet of anti-return air cleaner is connected with the air inlet of accurate vein infusion set, and wherein said accurate vein infusion set is provided with tube for transfusion, secondary filter microporous filter membrane, flow control valve and syringe needle; Described anti-return air cleaner is tubular or round structure; It is provided with gas outlet, anti-return chamber, air purifying room, air inlet, and wherein there are two cells the anti-return chamber, and Y type rigid plastics and plastic spacer are formed the first anti-return chamber; The plastics ball float is formed the second anti-return chamber with another Y type rigid plastics; Air purifying room communicates with the tube for transfusion air inlet, and the place is equipped with microporous filter membrane near air inlet/outlet.

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