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A syringe is essentially a device used in medicine to inject fluid into or withdraw fluid from the body. Medical syringes consist of a needle attached to a hollow cylinder that is fitted with a sliding plunger. The downward movement of the plunger injects fluid; upward movement withdraws fluid. A prefilled syringe is a single-dose packet of vaccine to which a needle has been fixed by the manufacturer. A prefilled syringe is not positioned as a high technology product such as needle free injectors which involves pioneering drug delivery technologies. Neither is it a simple technology (for example tabulating). Instead it is positioned in the middle, being on the border line of simple to advance.
The growth rate is to be expected to remain at a high level of more than 10% annually. This is due to a number of factors such as greater medication safety and increased convenience from using a prefillable device.
Prefilled syringes accommodate volumes that typically range from 0.25 to 5.0 ml. They are therefore best suited to products administered by subcutaneous or intramuscular injection. The categories account for the bulk of prefilled syringes: vaccines, blood stimulants, therapeutic proteins, erythroproteins, interferons and rheumatoid arthritis