CN2461569Y - Disposable double-filtering transfusion system - Google Patents

Abstract

The utility model belongs to a medical appliance which mainly comprises a puncture device of the upper end, a Murphy drip tube, a transfusion tube and a venous needle of the lower end, wherein, the back end of the puncture device is provided with a filter which is provided with a micro hole filtration film. A venous puncture needle head section and the transfusion tube are connected by a separable splicing structure, and the venous needle head section is provided with the filter which is provided with the micro hole filtration film. The structural design of the utility model can have favorable filtration functions for venous drop and venous injection. Meanwhile, the utility model is convenient for hands holding when a liquid bottle (bag) is replaced, and a needle head is avoided being contaminated.

Description

Disposable two filter infusion apparatus of crossing

This utility model belongs to medical apparatus and instruments, mainly proposes a kind of disposable two filter infusion apparatus of crossing.

Venous transfusion is a kind of clinical main Therapeutic Method, and effectively administration rapidly can be regulated body fluid balance again.But the particle contamination and the harm thereof of injection can not be ignored.Though injection carries out strict detection before dispatching from the factory, but when intravenous administration except the microgranule in microgranule in the glucose solution and the antibiotic (is many with the powder), beyond the ampoule drug microparticles, add to open and dissolve, the microgranule that produces in the compatibility medicinal liquid process, the particle number of vein input is greatly increased, and the small particle 1-50 μ that is invisible to the naked eye can easily cause venous thrombosis with a large amount of intravasations of injection, causes very big harm to human body.The disposable transfusion device standard of using is now: GB8368-1998, GB8368-1995 etc., its structural design does not make when the upper end syringe needle inserts easy to operate and easily pollute, though the transfusion device lower end connects the syringe needle place filter is arranged, in intravenous drip liquid, play the effect of filter liquide, but when needing intravenous injection, medicinal liquid does not pass through this filter, easily causes microgranule invasion blood vessel harmful to human.

The purpose of this utility model promptly is to propose a kind of disposable two filter infusion apparatus of crossing, and makes it have filtration preferably when intravenous drip and intravenous injection medicine, thereby solves existing existing the problems referred to above of disposable transfusion device.

This utility model is finished the technical scheme that common invention task taked: it includes the venipuncture needle of upper end perforator, Murphy's burette, speed regulator and lower end; Rear end at the upper end perforator is provided with the filter with micropore filtering film; Venipuncture syringe needle section adopts separable connected structure to be connected with tube for transfusion, and has the filter of micropore filtering film in the setting of venous needle section.

Structural design of the present utility model can play the double filtration effect to the intravenous drip medicine, also can have good filtration when the intravenous injection medicine, and is hand-held when also being convenient to change liquid bottles (bag) simultaneously, avoids contaminated pinhead.

This utility model disposable two cross filter infusion apparatus and the obviously differences of nothing in the use operation of existing transfusion device, check that promptly the transfusion device packing has or not breakage, gas leakage, the taking-up transfusion device opens the package, hand-held transfusion device upper end perforator syringe needle, the sheath that takes off on the syringe needle thrusts liquid bottles (bag), open the air in the air inlet emptying tube for transfusion as required, close actuator and can carry out venipuncture.In the drop process, from the dropper dosing, close air inlet earlier as need, open exhaust hole again and the dosing aperture gets final product dosing,, close actuator as the need injection liquid, the venous needle section is separated from splicing position with tube for transfusion, and syringe nipple is connected with the syringe needle section gets final product injection liquid.

Embodiment:

Accompanying drawing 1 is this utility model structural representation.

Accompanying drawing 2 is the perforator structural representation.

Accompanying drawing 3 is a venous needle segment structure sketch map.

The embodiment that provides with reference to accompanying drawing is further specified its structure:

As shown in Figure 1, this utility model transfusion device comprises upper end perforator 1, Murphy's burette 2, speed regulator 3 and intravenous needle 4; Transfusion device upper end perforator syringe needle inserts in the pharmaceutical liquid bottle (bag) during use, and medicinal liquid instils in patient's vein by upper end perforator syringe needle, tube for transfusion, venous needle, and the venous needle section adopts separable inserting mode to be connected with the tube for transfusion of front end.

As shown in Figure 2, perforator 1 comprises syringe needle 10, inlet opening 11, air inlet 12 and connection tube 15, and the perforator rear end is provided with the filter 14 with micropore filtering film 13.

As shown in Figure 3, the venous needle section adopts separable connected structure to be connected with tube for transfusion, and promptly it has pipe socket 16, and the filter 14 with micropore filtering film 13 is set.Omitted intravenous needle 4 in the accompanying drawing 3.

Claims (1)

1, a kind of disposable two filter infusion apparatus of crossing, the intravenous needle (4) of perforator (1), Murphy's burette (2), speed regulator (3) and lower end on mainly comprising; It is characterized in that: the rear end at perforator (1) is provided with the filter (14) with micropore filtering film (13); Venipuncture syringe needle section adopts separable connected structure to be connected with tube for transfusion, and on the venous needle section filter (14) with micropore filtering film (13) is set.

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