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. 09, 2002
Filed:
Aug. 03, 1999
Applicant:
Inventor:
Stefan Käfer, Eigeltingen, DE;
Assignee:
Ing. Erich Pfeiffer GmbH, Radolfzell, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/500 ;
U.S. Cl.
CPC ...
A61M 1/500 ;
Abstract
For discharging a medium, such as a powder, a film/foil seal ( ) of a reservoir chamber ( ) is pierced by a tool ( ) in a first axial movement, after which the medium is suctioned via an orifice ( ) in feeding a delivery flow via passageways ( ) from the chamber ( ). On completion of a return stroke and twisting the tool ( ) relative to the reservoir body ( ) a further chamber ( ) may be emptied in the same way, thus enabling e.g. a pharmaceutical active substance to be administered in two individual doses as expedient for nasal treatment.