A medical injection device including a shield system and a syringe coupled to the shield system. The shield system includes a syringe holder, a shield telescopically received in the holder and slidably coupled to the holder and an end fitting which isolates the syringe flange from the holder, preventing...http://www.google.es/patents/US6616639?utm_source=gb-gplus-sharePatente US6616639 - Safety shield system for syringes
