METHOD OF MANUFACTURING NEEDLES

摘要

A method for manufacturing an integral one-piece needle, the method comprisi ng feeding a polymeric resin into a mould cavity and injecting a fluid under pressure into at least a portion of the cavity t o eject therefrom the central region of the polymeric resin. This creates an annulus of polymeric resin having an orifice therethrough, the annulus of polymeric resin forming die cannula of the needle, the mounting hub being provided by the remaining portion of the cavity.