Patent ID: 8177767
Filing Date: 2012-05-15
Classification: A61J,A61M

Abstract:
1. A medication delivery system for delivering medication from a cartridge, the medication delivery system comprising: a medication delivery device that is calibrated and designed for a specific concentration of a medication and wherein the medication delivery device has a cartridge receiving portion with a shape and diameter so that the medication delivery device is structured to accept only cartridges having a specific mechanical coding that corresponds to the concentration for which the device is designed and calibrated, or a lower concentration; a cartridge containing one of a plurality of different concentrations of medication, the cartridge containing at least one mechanical coding selected from a plurality of mechanical codings, the mechanical coding(s) comprising at least one circular element(s) shaped as a substantially continuous circumferential protrusion having a circular cross section when viewed in a cross section transverse to the longitudinal axis of the cartridge and the protrusion extending radially outward from a cylindrical portion of the cartridge and having a diameter with a predetermined value and a predetermined shape that allows the cartridge to fit into the cartridge receiving portion of the medication delivery device and wherein the cartridge is structured to be axially insertable into a medication delivery device in any rotational orientation; and wherein the selected mechanical coding(s) allow(s) the cartridge to be used only in a delivery device designed and calibrated for the concentration indicated by the selected mechanical coding(s), or a lower concentration, wherein the mechanical coding(s) comprise protrusion(s) having different diameter(s) and/or different length L from a distal surface, and wherein cartridges having a higher concentration of medication than which the device is designed and calibrated for are not insertable into the medication delivery device.