CN2203880Y

CN2203880Y - Air filtering device for transfusion

Info

Publication number: CN2203880Y
Application number: CN 94218039
Authority: CN
Inventors: 王崇秀
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-03
Filing date: 1994-08-03
Publication date: 1995-07-26
Anticipated expiration: 2004-08-03

Abstract

The utility model relates to an air filtering device for transfusion, which is an auxiliary device of a closed transfusion device. The lower end of a housing (1) is provided with an air inlet (6) and a liquid inlet (4); clean, aseptic, and no medicine filtering liquid (3) is contained in the housing; a pipe-shaped clean air outlet (2) arranged in the housing extends above liquid level, and the lower end of the clean air outlet (2) extends out of the housing; the clean air outlet (2) is connected with a transfusion bottle through a latex pipe and a needle nozzle; the air not filtered enters the transfusion bottle through the clean air outlet after filtered by the aseptic and no medicine filtering liquid. The utility model can effectively filter dust, exiguous harmful substances, and bacteria which are in the air.

Description

Air filtering device for transfusion

This utility model relates to a kind of transfusion air filter, is the auxiliary equipment of closed transfusion device.

In clinical care, air more and more causes the sandstorm weather of the concern, particularly northwest of relevant scholar and healthcare workers both at home and abroad to the harm that pollution caused of injection, often will a large amount of dusts be rolled onto in the air with a lot of harmful substances.People take many measures for this reason.Several different methods such as the employing micropore filter paper filtering air of on Chinese patent literature, announcing, employing activated carbon filtration air.For example " disposable infusion air purifier " is that the reuse active carbon carries out adsorption cleaning to air after adopting the medicinal cotton balls of viscosity to carry out disposable purification (CN2089181U)." pocket type filter for transfusion " (CN2094997U) carries out filtering with microporous filter membrane.And " air disposable filter " is to adopt medicinal liquid to come filtered air (CN2122641U)." transfusion use air filter " (CN2120589U) has solid particle to be deposited in concave bottom place under the filtrate kettle in main part filtrate kettle.Above-mentioned these measures are all undesirable.Can not be with harmful substances in air and microgranule filtering effectively.

The purpose of this utility model be at above-mentioned shortcoming design a kind of new filtration result good, install simple air filter.

Scheme of the present utility model is as follows: no medicine, the aseptic filtrate of the built-in cleaning of housing of defecator account for more than 1/2 of device case inner volume, and the filtrate import is set on the shell of defecator, seal sealing with living.Air intlet is established in lower end at housing.A tubulose pure air outlet is set simultaneously, and the upper end of this pure air outlet is in device case and stretch out the liquid level of filtrate, and the lower end reaches outside the housing.During use, air intlet is connected with latex tubing, makes the air admission defecator of filtered.The pure air outlet also is connected with latex tubing with infusion bottle, so that in the clean air admission infusion bottle.That this utility model adopts is clean, no medicine, bacteria-free filtrate purpose are to utilize water to make sand dust obtain filtering to the absorption of sand dust with settlement action, and while no medicine, the bacteria-free filtrate of cleaning also can dissolve airborne imperceptible solubility harmful substance in filtrate.Medicinal liquid and solubility harmful substance chemically react when having avoided the use medical filtration, cause secondary harm.The filtrate of this cleaning also has certain filtration to antibacterial, and effect is greater than using microporous filter membrane.This utility model is simple in structure, and is easy to use, and device is reliable.

Below in conjunction with accompanying drawing this utility model is illustrated:

Fig. 1-Fig. 3 is use of the present utility model and structural map.Fig. 1 is the connection layout of this utility model and infusion set, and Fig. 2 is embodiment of the present utility model, and Fig. 3 is another embodiment of the present utility model.

Pure air outlet (2) on the housing (1) of device is connected with infusion bottle (9) by latex tubing (8) and pin mouth, and (10) are the fluid latex tubing.

Be built-in with clean no medicine, sterile liquid at housing (1), highly account for getting final product more than 1/2 of whole housing.Liquid inlet (4) is arranged on the housing (1), and have activity to seal (5), liquid inlet (4) is sealed at the filtrate inlet port.Other is provided with air intlet (6).Piped pure air outlet (2) is set in housing (1), and stretch on filtrate (3) liquid level the upper end, and stretch outside housing its lower end.Piped pure air outlet (2) is fixedlyed connected with housing (1).The available glass bulb manufacturing of whole device, also available plastics manufacturing.Air intlet (6) can connect latex tubing (7) makes air easily in the access to plant, and pure air outlet (2) enters infusion bottle by latex tubing (8) and pin mouth.

Device shown in Figure 3 is another embodiment of the present utility model, and this device is simpler.Shell (1) can adopt the infusion bottle repacking.Mouth of infusion bottle is inlet (4), and the available syringe needle of air intlet (6) connects latex tubing and constitutes, and the available lumbar puncture needle head of pure air outlet (2) replaces, and the upper end is arranged in the housing and reaches above the filtrate (3), and the lower end connects the pin mouth by latex tubing.

Claims

1, the transfusion air filter, comprise air inlet (6), housing (1), pure air outlet (2) is interior, it is characterized in that the filtrate (3) in the housing (1) is clean, aseptic, no drug filtrate, on housing (1), there are inlet (4) and activity to seal (5), air intlet (6) is arranged in the lower end of housing, filtrate in the housing (1) accounts for more than 1/2 of cumulative volume of housing (1), tubulose pure air outlet (2) lower end is located at the outer end of the bottom of housing (1), and fixedly connected with the lower end of housing (1), stretch more than the liquid level (3) of filtrate in housing (1) upper end, and the lower end is connected with infusion bottle (9) by latex tubing (8).