The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 1997
Filed:
May. 03, 1994
Gerhard Poss, Schriesheim, DE;
Jurgen Wittekind, Frankfurt am Main, DE;
Andreas Kuhnel, Oberursel, DE;
Boehringer Ingelheim KG, , DE;
Abstract
The invention relates to a propellant-free inhaler which has a storage chamber (6) for a powdered substance to be inhaled, which is associated with a metering device (8), which is manually operated by means of a button, having a metering chamber (7) for receiving a given dose of the powdered substance. The device also has a lateral mouth piece (11) for active breathing in, with an air channel (7) for distributing the particular dose of the powdered substance in the air stream. To ensure that the dosage provided is highly reproducible, a high proportion of this dose leaves the inhaler and the medicinal substance is reproducibly dispersed, a trigger operated pump (12,19,20) is provided which can be manually primed before the inhalation process by means of a button (1,42) and which can be actuated in synchronism with the breathing, thereby generating a current of foreign air which disperses the metered substance.