Syringe and needle guard assembly

Claim 1

An additive-type syringe and needle guard assembly including a syringe housing having a front wall substantially closing one end of the housing and a needle hub extending forward from said front wall for securing a needle cannula, said needle cannula extending forward from the hub and terminating with a needle point, and a needle guard fixedly mounted coaxially with the needle hub on said front wall of the syringe housing to protect the needle cannula during use of the assembly in injecting fluids into I.V. administration sets including Y-sites, the syringe and needle guard assembly comprising: an outwardly flared surface defined by said front wall of said syringe housing; an elongated member defining said needle guard and having a cylindrical side wall extending forward beyond the needle point of the cannula a fixed distance and having a first open end at the front of the cylindrical side wall and a second outwardly flared open end at the rear of the cylindrical side wall and adjacent said outwardly flared surface defined by said front wall of said syringe housing; a circumferential flange disposed on and within said elongated member inwardly of the sidewall and intermediate the first open end and the second end of the cylindrical sidewall, said circumferential flange defining an open sized for said needle hub; and annular means disposed between said adjacent flared surfaces and joining the needle guard to the front wall of the syringe housing.