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:
Feb. 15, 2000
Filed:
Apr. 17, 1998
Michael Fritz, Biblis, DE;
Heinz Macho, Furth, DE;
Helmut Rinkel, Lampertheim, DE;
Jurgen Schwab, Ketsch, DE;
Georg Arras, Reichelsheim, DE;
Klaus Oswald, Riedstadt-Crumstadt, DE;
Alfred Schaffner, Brensbach-Hollerbach, DE;
Roche Diagnostics GmbH, Mannheim, DE;
Abstract
Dispensing device for dispensing small quantities of fluid comprising a compressible balloon with an end-to-end capillary inserted within the walls of the balloon in such a way that the one end of the capillary communicates with the interior of the balloon and the other end of the capillary communicates with the exterior space. The balloon has at least one opening through which the interior space of the balloon communicates with the exterior space. The at least one opening has a flow resistance that is designed so that a fluid contained in the capillary is expelled when the balloon is compressed. The present invention also comprises a system and method for the metered dispensing of fluids.