Patent ID: 7338472
Filing Date: 2008-03-04
Classification: A61M

Abstract:
1. A syringe for use in a fluid delivery apparatus having a threaded shaft, said syringe comprising: a syringe body; a plunger stem having a distal end and a proximal end; a stopper positioned at the distal end of the stem, the stopper sized to fit within the syringe body; and a flange positioned at the proximal end of the stem and outside of the syringe body, the flange extending radially outwardly from the stem and having a threaded portion sized to engage the threaded shaft, wherein the flange has radially outwardly facing edges, the threaded portion being adjacent the edges, the edges formed to guide the threaded portion onto the threaded shaft; wherein the plunger stem comprises an open area in the area extending from the threaded portion to the stopper to receive the threaded shaft.