INJECTION CLICKER ASSEMBLY, DOSE INDICATOR, DOSEABLE QUANTITY IDENTIFIER, DOSE DISPLAYING METHOD, AND MEDICATION INJECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To especially improve a portable medication discharger such as an injection pen.;SOLUTION: An injection pen includes an injection clicker assembly, wherein the injection clicker assembly have a collar arranged coaxially on a drive sleeve, and which oscillates axially on the drive sleeve that rotates during medication dispensing to provide an audible clicking sound that indicates injecting use of the pen. The injection pen also may include a doseable quantity identifier that uses a rotational matrix and a sensor for electrically sensing the arrangement of the dose setting mechanism of the pen, which identifier may be part of a therapeutic dose indicating system that utilizes a cartridge recognizer to recognize a concentration of medication so as to allow an automatic determination of a therapeutic dose. The injection pen further may include an assembly for selectively rotating a drive sleeve of the pen, which assembly has a dial that rotates out during dose setting and which translates in without rotation during dose injecting.;COPYRIGHT: (C)2009,JPO&INPIT