Apparatus for placing object in syringe body

Abstract

An object, e.g. a piston or a fluid medicament, is inserted into a tubular syringe body centered on a syringe axis and having a pair of ends by an apparatus having a support movable axially forward toward and axially rearward away from the body and a tube extending along a sleeve axis generally parallel to the syringe axis, having a rear end fixed in the support and a front end fittable inside the syringe. A centering sleeve is formed centered on the sleeve axis with a generally frustoconical centering surface engageable with the rear body end surrounding the tube. This sleeve is displaceable axially on the support between a front position with the centering surface projecting axially forward past the tube front end and a rear position with the tube front end projecting axially forward past the centering surface. The support is displaced axially forward toward the body and thereby engages the centering surface coaxially with the body rear end. Thereafter the tube is pressed coaxially through the centering sleeve into the syringe body and the object is expelled from its front end.

Dependencies are inferred from the claim text.