Patent ID: 7341576
Filing Date: 2008-03-11
Classification: A61M

Abstract:
1. An injection or extraction system, comprising: a syringe having a body with a connection joint at first end thereof and at least one assembly indicator mark proximate thereto and having a central longitudinal axis; a needle assembly, comprising a luer connection and a needle partially disposable therein, with a channel therethrough; and the luer connection comprising a hub formed therein, the hub having a first end for engaging the needle and a second end for mating with the connection joint of the syringe, the first end of the syringe body at least partially disposable within the luer connection and a hollow sheath assembly operatively and removably connected to the needle assembly, the sheath assembly including a lever arm attached thereto, the needle assembly insertable therein, the needle movable parallel to the longitudinal axis and rotationally fixed about the longitudinal axis in relation to the sheath, a viewing region positioned in the luer connection of the needle assembly and positionable over the first end of the syringe for viewing at least one of the assembly indicator mark indicating whether the needle assembly is securely fastened to the syringe; and wherein the sheath is rotatable about the longitudinal axis by actuation of the lever arm, rotation of the sheath also rotating the needle to secure the needle assembly to the syringe without the use of external tools.