A modular safety needle cannula device that can be stored independently from the syringe that it will be used with, wherein when it is to be used the modular safety needle cannula device is attached or fixed to a suitable syringe, used to inject medicament into a body and than the used needle cannula...http://www.google.ca/patents/US5935113?utm_source=gb-gplus-sharePatent US5935113 - Modular one handed safety retractable needle cannula
