CN201235118Y - Disposable infusion device with float needle valve - Google Patents

Abstract

The utility model provides a disposal infusion apparatus with a float needle valve, which comprises a liquid inlet pipe, an air cleaner, a valve core and a liquid outlet pipe, wherein the liquid inlet pipe and the liquid outlet pipe are respectively arranged on the upper end and the lower end of the air cleaner, the valve core is arranged in the air cleaner, which is formed by a floating ball, a guiding fin and a valve needle, wherein the guiding fin is vertically arranged on the periphery of the floating ball, the valve needle is arranged at the bottom of the floating ball, and the tip of a conical valve needle is opposite to the upper hole of the liquid outlet pipe. Compared with the prior art, the utility model has the advantages of reasonable structure, simple structure, security, reliability and convenient employment, which can effectively prevent medical negligence from happening because that air gets into human bodies when fluid infusion is finished, and has excellent popularizing and use value.

Description

The disposable transfusion device of band float needle valve

Technical field

This utility model relates to the disposable transfusion device of being with float needle valve, is widely used on the medical gravity transfusion device of human body and animal.

Background technology

At present, liquid-transport pipe-line on the gravity transfusion device, the air purge device does not all have automatic safety device, one-man worker's control valve, visual going by the people observed, and can't resolve numerous people together or the safety in when transfusion late at night, and very easily to be totally lost and to take into account not then because of liquid, air just can enter in the body of people and animal and lead to malpractice.

Summary of the invention

In order to solve the defective on the transfusion device, this utility model provides the disposable transfusion device of band float needle valve, simple in structure, can keep last liquid to be retained in automatically and stop transfusion on the fluid pipeline of transfusion device, guarantee that air can not enter in the body of people and animal, prevent the generation of malpractice and the waste of medicine.

The disposable transfusion device of band float needle valve of the present utility model, as depicted in figs. 1 and 2, form by feed tube, air purge device, spool, drain pipe, feed tube and drain pipe are separately positioned on the two ends up and down of air purge device, spool is arranged among the air purge device, and spool is made up of ball float, guide fin and needle, and guide fin is vertically set on the periphery of ball float, needle is arranged on the bottom of ball float, and the tip of tapered needle valve and drain pipe are suitable for reading to right.

The beneficial effects of the utility model: transfusion system safety valve gear production cost is extremely low, the safety height, and use is simple, quick, gives user safety, prevents the malpractice that leads in the air admission human body automatically.

Description of drawings

Fig. 1 is the structural representation of transfusion device;

Fig. 2 is that the A-A of transfusion device is to the section structure sketch map.

Description of reference numerals: drain pipe 1, air purge device 2, feed tube 3, ball float 4, guide fin 5, tapered needle valve 6.

The specific embodiment

With reference to accompanying drawing the disposable transfusion device of band float needle valve of the present utility model is done following detailed explanation.

As shown in Figure 1 and Figure 2, the disposable transfusion device of band float needle valve of the present utility model, its structure is made up of feed tube 3, air purge device 2, spool, drain pipe 1, feed tube 3 and drain pipe 1 are separately positioned on the two ends up and down of air purge device 2, spool is arranged among the air purge device 2, spool is made up of ball float 4, guide fin 5 and needle 6, guide fin 5 is vertically set on the periphery of ball float 4, needle 6 is arranged on the bottom of ball float 4, and the tip of tapered needle valve 6 and drain pipe 1 are suitable for reading to right.

Embodiment

Transfusion device of the present utility model in use, the medicinal liquid that comes out from infusion bottle enters feed tube, splash into the air purge device from feed tube, when liquid level arrives certain altitude, ball float floats, it is suitable for reading that tapered needle valve is opened drain pipe, unit's medicinal liquid enters drain pipe, as long as medicinal liquid constantly splashes in the air purge device, ball float remains suspended state, and needle also just remains open mode, when feed tube does not have medicinal liquid to splash into the air purge device, ball float falls, and needle guarantees that with feed tube sealing suitable for reading air can not enter drain pipe.

Can pinch the movable needle of air purge device by hands when if desired the medicinal liquid in the feed tube being used up, medicinal liquid in the feed tube just can be totally lost medicinal liquid under monitored state, both can prevent to improve the utilization rate of medicine again in the air admission body, cause unnecessary waste.

Claims (1)

1, the disposable transfusion device of band float needle valve, it is characterized in that forming by feed tube, air purge device, spool, drain pipe, feed tube and drain pipe are separately positioned on the two ends up and down of air purge device, spool is arranged among the air purge device, spool is made up of ball float, guide fin and needle, guide fin is vertically set on the periphery of ball float, and needle is arranged on the bottom of ball float, and the tip of tapered needle valve and drain pipe are suitable for reading to right.

Images