The disclosure herein describes a needle assembly for use with a syringe which includes a needle device having a holder and a needle, and a needle guard which is defined by a hollow cylindrical sheath that partially surrounds the needle; the guard has a first end mounted to the needle holder and an opposite...http://www.google.com/patents/US5462534?utm_source=gb-gplus-sharePatent US5462534 - Needle assembly for use with a syringe
