There are many types of pre-filled syringes on the mark […]
There are many types of pre-filled syringes on the market, and the quality is different. So how can we correctly identify the quality of pre-filled syringes?
Now do the following brief analysis based on some of its characteristics:
First of all, currently pre-filled syringes are mainly made of glass and plastic materials. Plastic syringes are gradually replacing glass syringes, which mainly have lower cost, higher safety than glass syringes, and are not easy to break. Pre-filled syringes The production process itself is relatively advanced, generally speaking, it is produced by injection molding. The products produced by the injection molding process are formed at one time, without scraps, the products have accurate dimensions and uniform weight.
Second, the sealing requirements of pre-filled syringes are relatively high. When selecting syringes, they should be tested for sealing. Infuse half of the water into the injector, insert the piston into the syringe, remove the protective cap, remove the residual air, and then Block with a protective cap, and apply an axial pressure of 30N on the plunger plug inside the syringe through the push rod for 30 seconds. There should be no leakage at the seal of the protective cap and the seal of the piston.
Third, pre-filled syringes must ensure their sterility because they are in direct contact with drugs. They should generally be produced in clean workshops that meet national standards. In addition, in order to ensure their sterility, if the veterinary drug manufacturer has a high sterility On request, additional ethylene oxide sterilization or cobalt 60 irradiation sterilization can be performed.
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