Disposable sterile particulate-retaining syringe

Abstract

The invention discloses a disposable sterile particulate-retaining syringe, which comprises a barrel, a plunger, a needle holder and a filter, the plunger is arranged in the barrel, the needle holder is arranged on one side of the front end of the barrel and is used for holding a needle, the barrel is communicated with the needle holder through a liquid outlet, and the filter is provided with a filter membrane, which is attached on the liquid outlet and can be closed toward the front end and opened toward the rear end. According to the structure design, the thickened interlayer-wrapped round unilaterally hung filter is only arranged in the tip of a conventional and ordinary syringe, the syringe can be automatically opened and closed and suck dissolved medicine during the microflow of the liquid, and can retain particulates in the injection in one step, so that particulates which are 0.45Mu m or bigger cannot be produced in the discharged liquid any more, and thereby the safety of injection is guaranteed.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to a syringe, in particular to a disposable aseptic microparticle retention syringe. Background technique [0002] Infusion therapy is an important treatment method, especially intravenous infusion and intravenous injection are widely used because the medicinal liquid directly enters the blood circulation system, and the drug effect is quickly exerted. However, in recent years, the harm caused by foreign matter and particle pollution in injection fluid, especially infusion, has aroused widespread concern, and it is urgent to solve particle pollution. [0003] Intravenous drip and intravenous injection. Particles refer to unintentionally added mobile and insoluble foreign substances and soluble and undissolved drugs in the liquid. Insoluble particles include rubber particles, polyester flakes, flakes, and color spots. , insoluble inorganic salts, activated carbon particles, fibers, an...

AI Technical Summary

Problems solved by technology

[0006] 2. Improper operation during the drug preparation process, such as when multiple drugs are compatible, there may be drug particles of 1 to 50 μm or more in the drug solution

[0007] 3. Glass shards inhaled when the glass ampoule is opened

However, so far there is no filter device of any kind that can be safely used in syringes, and the filter devices used in infusion sets cannot be transferred to syringes due to their different interception principles. An all-in-one, single-use sterile particulate-retaining syringe product is not yet available

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