The appearance requirements of bromobutyl rubber piston […]
The appearance requirements of bromobutyl rubber pistons for prefilled syringes: the color should be uniform, and the product should not have stains, impurities, bubbles, cracks, lack of glue, roughness, glue threads, glue chips, sponges, and burrs; The phenomenon of incompleteness or sawtooth caused by the edge; cannot have obvious marks caused by the mold. If there is a sprue opening, it should not protrude from the surface of the piston
Place the prefilled syringe with a bromobutyl rubber stopper in a test tube, acidify with nitric acid, and add silver nitrate test solution, which should produce a yellow precipitate. Compatibility of piston and push rod, piston lubricity, piston sliding performance, body tightness, testing according to the standard of prefilled syringe assembly shall meet the specified requirements.
The infusion device is generally made of polypropylene, and its structure is mainly composed of a pipe sleeve, a push rod, a piston, a positioning ring and a protective cap. The perfusion device is mainly sterilized by ethylene oxide sterilization equipment, which is sterile and pyrogen-free. This type of syringe can be filled with liquid medicine in advance, which is convenient and quick to operate. The pharmaceutical market continues to increase its demand!
The following points need to be paid attention to when using a perfusion device for drug delivery:
First, before using the infusion device, you should pay attention to whether the infusion device is clean and whether the packaging is damaged;
Second, whether the pre-loaded medicine in the perfusion device has deteriorated, and whether the liquid medicine has exceeded the expiration date;
Third, whether the part where the syringe is used is disinfected a few days before the injection and after the injection;
Fourth, take corresponding measures according to the situation;