A prefilled syringe comprises a barrel having at a distal end a needle-connecting portion and at the proximal end an open end, a plastic tubular container having a mouth and a flexible hollow cylindrical body and containing a liquid medicament previously charged therein, and a plunger inserted into the...http://www.google.ca/patents/US5899889?utm_source=gb-gplus-sharePatent US5899889 - Prefilled syringe
