Patent ID: 8474447
Filing Date: 2013-07-02
Classification: A61M,G06M

Abstract:
1. Hand-held device ( 1 ) for metered dispensing of sprayable substances that are medicaments for inhalation, having a cartridge ( 3 ) that during an opening stroke is movable into a dispensing position in a housing ( 2 ) by pressing and a step-by-step indexing mechanism ( 11 ) that is also moved by the cartridge ( 3 ) during the opening stroke of said cartridge ( 3 ), for registering and displaying the number of dispensing actuations carried out, said step-by-step indexing mechanism ( 11 ) having a graduated collar ( 26 ) arranged circumferentially, concentrically with respect to a valve tube ( 5 ), in front of an inspection window ( 36 , 47 , 48 ) and a disc ( 15 ) with teeth on its underside into which two step-by-step indexing pawls ( 28 ) engage as a housing ( 34 ) of the step-by-step indexing mechanism is axially moved, which is forced into a rotary movement by guide pins ( 33 ) movable in diagonal slots ( 19 ), characterised in that the diagonal path of the slots ( 19 ) extends over only part of the stroke height of the step-by-step indexing mechanism housing ( 34 ) and the guide pins ( 33 ) move over the remaining travel of the step-by-step indexing mechanism ( 11 ) parallel to the longitudinal axis (x-x) of the step-by-step indexing mechanism, wherein the disc (