| 摘要 |
A process is disclosed for filling with a fluid and closing disposable plastic syringes that are to be sterilised. The disposable syringes have an injection cylinder (11) with a shaped front nozzle part (20), a piston or piston plug (30) in at least one piece and a piston stop element (40) arranged in the area of the cylinder gripping plate (12). After inserting the piston (30) into the empty injection cylinder (11), together or not with its own piston rod, the piston is fully pushed up to the front end of the cylinder. The fluid medium is then fed under pressure into the injection cylinder (11) through the nozzle part (20) and pushes the piston (30) in the direction of the piston rod up to the piston stop element (40). After the syringe is filled, the front area (25) of the nozzle part (20) is closed by plastic deformation. This process allows a previously filled disposable syringe to be sterilised in a standard autoclave without any risk of the syringe inner pressure plastically deforming parts of the syringe.
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