Nowadays, there are many kinds of prefilled syringe pro […]
Nowadays, there are many kinds of prefilled syringe products on the market, and the quality is different. So how can we correctly distinguish the product quality of prefilled syringes?
Now make the following brief analysis based on some of its characteristics:
First of all, the current prefilled syringes are mainly made of glass and plastic materials. Plastic syringes are gradually replacing glass syringes. They mainly have lower cost, higher safety than glass syringes, and are not easy to break. Prefilled syringes The production process itself is relatively advanced, generally speaking, it is produced by injection molding process. The products produced by the injection molding process are molded at one time, with no waste, accurate product size and uniform weight.
Second, the prefilled syringes have high requirements on the sealing performance. When selecting the syringes, the sealing performance should be tested. Inject half of the water into the syringe, insert the piston into the syringe, remove the protective cap, and remove the remaining air. Use a protective cap to block, apply an axial pressure of 30N on the push rod rubber plug inside the syringe through the push rod, and keep it for 30 seconds. There should be no leakage at the sealing part of the protective cap and the piston seal.
Thirdly, prefilled syringes must be in direct contact with drugs, so their sterility must be guaranteed. Generally, they should be produced in a clean workshop that meets national standards. In addition, in order to ensure their sterility, if the manufacturer has higher requirements for sterility , Can additionally carry out ethylene oxide sterilization or cobalt 60 irradiation sterilization.