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:
Dec. 25, 2018
Filed:
Feb. 18, 2015
Roche Diabetes Care, Inc., Indianapolis, IN (US);
David Teutsch, Schupfen, CH;
Peter Kettenmann, Waghaeusel, DE;
Roche Diabetes Care, Inc., Indianapolis, IN (US);
Abstract
Disclosed is a method for initializing a dosing unit () of an ambulatory infusion system, the method including carrying out a first priming routine. The first priming routine includes: providing the dosing unit () with a dosing chamber () having a minimal dosing chamber volume, a draining valve () being closed and a filling valve () being open. The first priming routine further includes measuring an initial reservoir fluid pressure pand computing, a first priming volume v. The method further includes increasing the dosing chamber volume by the first priming volume v, with the first priming volume vbeing computed such that a reservoir coupling conduit is filled with liquid drug substantially completely at the end of the dosing chamber volume increasing. The first priming routine further includes closing the filling valve () and opening the draining valve () and emptying the dosing unit () by decreasing the dosing chamber volume to the minimal dosing chamber volume. Disclosed are further a control unit for controlling operation of a dosing unit as well as an ambulatory infusion device.