CN201692443U

CN201692443U - Automatic vent safe infusion device

Info

Publication number: CN201692443U
Application number: CN2009202447508U
Authority: CN
Inventors: 罗勇; 吴其玉; ***
Original assignee: WUHAN ZHIXUN CHUANGYUAN SCI-TECH DEVELOPMENT Co Ltd
Current assignee: Wuhan W.E.O. Science & Technology Development Co., Ltd.
Priority date: 2009-10-13
Filing date: 2009-10-13
Publication date: 2011-01-05
Anticipated expiration: 2019-10-13

Abstract

Disclosed is an automatic vent safe infusion device, which belongs to the field of medical appliances, and comprises a bottle stopper puncture device (1), a bucket core (2), a dropping bucket (3), an infusion pipeline (4), a flow regulator (5), a self-venting filter (6), a pinchcock (7), and an intravenous infusion needle (8). The utility model can simplify venting the operation, reduce the labor intensity, and can also prevent air bubbles from generating and entering blood vessels, and the transfusion is safer, the utility model adopts the technical scheme of designing the automatic vent safe infusion device, compared with the common infusion device, the structure of the dropping bucket is improved on the one hand, the dropping bucket with automatic vent and air bubble prevention is arranged, the bucket core designed uniquely is arranged in the dropping bucket, under the action of gravity and the communicating vessel principle, venting operations of inverting the dropping bucket and pinching the dropping bucket of the common infusion device are avoided, and air bubble generation and failed exhaust can also be effectively prevented; and on the other hand, the structure of the filter is improved, a hydrophilic liquid medicine filtration membrane is arranged, an air hole and a breathable film are disposed on an upper cover of the filter, under the action of the principle of surface tension, the air bubbles can be prevented from entering a lower cavity of the filter and the blood vessel, the air bubbles entering the infusion pipeline is accumulated in an upper cavity of the filter, the air bubbles accumulated in the upper cavity of the filter can also be drained out of the filter and the liquid does not seep out, the problem of air bubbles entering the infusion pipeline caused by untimely bottle change or other error operations can be solved, failed venting or accidental entrance of air bubbles in the blood vessel can be avoided, and the transfusion is more safe.

Description

A kind of automatic exhaust safety infusion device

One, technical field

This utility model belongs to medical instruments field, specially refers to a kind of automatic exhaust safety infusion device.

Two, background technology

General infusion set product (comprising precision infusion set and non-precision infusion set) following problem of ubiquity in nursing procedure commonly used clinically at present:

1, bleeding is loaded down with trivial details, and the operating time is longer, and clinical transfusion device aerofluxus failure often has generation, precision filter infusion set particularly, one causes the transfusion device waste, and two cause liquid waste, make and are easy to generate unnecessary dispute between manufacturer, hospital and the patient three.

2, the bleeding process need is inverted and the extruding dropping funnel, and for the little nursing staff of strength, operation is inconvenience very.

3, the season of weather cold, very easily cause bubble to be adsorbed on pipe inner wall during medicinal liquid conversion environment, be difficult to get rid of, bring potential hazard to patient health.

4, since the nursing staff to change medicine bottle untimely, be easy to generate the empty phenomenon of dropping funnel medicinal liquid stream, the air admission infusion pipeline may enter human vas and form blood vessel embolism when serious.

There are the problems referred to above during in view of the clinical use of general infusion set, though present patent applied for addressing the above problem in various degree, but there is not a patent thoroughly to address the above problem, some patent can't be used especially in practice, Given this, wish to invent a kind of infusion device, solve loaded down with trivial details, the uneasy congruent problem of infusing of above-mentioned bleeding.

Three, summary of the invention

This utility model can be simplified bleeding, reduce labor intensity, and can prevent bubble to produce, stops bubble and enter human vas, and in order to achieve this end, the technical scheme that is adopted is:

This utility model has designed a kind of automatic exhaust safety infusion device, with reference to Fig. 1, this device is compared with general infusion set, on the one hand the dropping funnel structure is improved, but disposed the dropping funnel of automatic vent and prevention bubble, with reference to Fig. 3, this dropping funnel internal configurations the bucket core of a particular design, with reference to Fig. 2, form by core body (24) and core cap (25) two parts, there are similar " U " type or " H " type channel connection in inside as fluid path, and bucket core inlet (21) is higher than liquid outlet (22), and bucket core liquid outlet (22) is communicated with dropping funnel liquid outlet (31), side or end face at the bucket core have steam vent (23), under gravity and law of connected vessels effect, both can exempt the bleeding that general infusion set need be inverted dropping funnel and pinch dropping funnel, can also effectively prevent the generation of bubble and the generation of aerofluxus failure; On the other hand structure of filter is improved, with reference to Fig. 4, form by loam cake, base, liquid medicine filtering membrane and ventilated membrane, liquid medicine filtering membrane is placed between filter cover and the base, adopt the hydrophilic film material, make the bubble that enters infusion pipeline accumulate in the filter epicoele, stop bubble to enter filter cavity of resorption and human vas; Filter cover has air-vent, upper interior surface under air-vent is welded with ventilated membrane, can the bubble discharge filter that the filter epicoele gathers will be entered and liquid that can not oozes out, can solve like this owing to changing the air bubble problem that untimely or other maloperations of bottle enter infusion pipeline, avoid aerofluxus failure or bubble to be strayed into human vas, make transfusion safer.

Four, description of drawings

Fig. 1 is this utility model structural representation;

Fig. 2 is bucket cored structure sketch map;

Fig. 3 is the dropping funnel half-sectional view;

Fig. 4 is a filter structure schematic representation;

Five, the specific embodiment

With reference to Fig. 1, (1) bottle plug puncture unit, (2) bucket core, (3) dropping funnel, (4) infusion pipeline, (5) flow regulator, (6) from discharge filter, (7) tongs, (8) venoclysis needle.

With reference to Fig. 2, (21) inlet, (22) liquid outlet, (23) steam vent, (24) core body, (25) core cap.

With reference to Fig. 3, (31) dropping funnel liquid outlet, (32) dropper.

With reference to Fig. 4, (61) air-vent, (62) loam cake, (63) base.

By Fig. 1, before transfusion, bottle plug puncture unit (1) is inserted in the medicine bottle, open flow regulator (5), need not be inverted dropping funnel (3), medicinal liquid is under the self gravitation effect, can flow to dropping funnel (3) automatically, the interior liquid level of dropping funnel (3) can slowly raise, according to law of connected vessels, medicinal liquid is submergence bucket core inlet (21) and continue to raise at first, and steam vent (23) can the exclusive segment air, make liquid level reach the top of similar " U " type or " H " type passage, medicinal liquid enters the dropping funnel liquid outlet (31) that is communicated with it along bucket core liquid outlet (22) in the whereabouts automatically then, enters infusion pipeline (4) again, pushed by medicinal liquid, air is discharged from automatically in bucket core and the infusion pipeline, exempts to pinch dropping funnel thereby reach, automatic vent; And because the whole bucket core of medicinal liquid submergence (2), medicinal liquid is lower from the height that dropper (32) falls, avoid producing bubble because of medicinal liquid violent bump each other, even produce the first half that a small amount of bubble also only rests on the dropping funnel liquid level, be difficult to arrive bucket core inlet (21), therefore can prevent the generation of bubble.And if general infusion set is not taked the bleeding of being inverted dropping funnel and pinching dropping funnel, bubble or gas column promptly can enter infusion pipeline together along with medicinal liquid, cause the aerofluxus failure.

In infusion process; also untimely or other maloperations of bottle occur changing and cause the air admission infusion pipeline through regular meeting; do not discharge meeting life threatening safety; and discharging operation is loaded down with trivial details and difficult; this utility model can solve the problem of above-mentioned existence; from the hydrophilic liquid medicine filtering membrane of discharge filter (6) configuration under capillary effect; can stop bubble to see through; make bubble accumulate in the epicoele of filter; when bubble accumulates to a certain size or rocks filter gently; bubble can be by being welded on the hydrophobicity ventilated membrane discharge filter under the loam cake air-vent; prevent that bleeding failure or bubble are strayed into human vas; ventilated membrane also can stop medicinal liquid to ooze out, and makes transfusion safer.

Claims

1. automatic exhaust safety infusion device, comprised bottle plug puncture unit (1), bucket core (2), dropping funnel (3), infusion pipeline (4), flow regulator (5), from discharge filter (6), tongs (7), venoclysis needle (8), the bucket core (2) of a particular design that it is characterized in that dropping funnel (3) internal configurations, be made up of core body and core cap two parts, there are similar " U " type or " H " type channel connection in bucket core (2) inside as fluid path, and bucket core inlet is higher than liquid outlet, bucket core liquid outlet is communicated with the dropping funnel liquid outlet, has steam vent at the side or the end face of the core that struggles against;

From discharge filter (6), to form by loam cake, base, liquid medicine filtering membrane and ventilated membrane, loam cake has air-vent, and the upper interior surface under air-vent is welded with the hydrophobicity ventilated membrane, can get rid of the gas that enters the filter epicoele and stop liquid to ooze out; Liquid medicine filtering membrane adopts the hydrophilic film material, can stop bubble to pass through but does not influence the medicinal liquid infusion.

2. automatic exhaust safety infusion device according to claim 1 is characterized in that bottle plug puncture unit (1) can adopt metal puncture device or plastics perforator.

3. automatic exhaust safety infusion device according to claim 1 is characterized in that dropping funnel (3) adopts plastic injection-moulded or blowing forms.