Array and method for dosing a hormone regulating blood sugar in a patient

US7806853B2 · kind B2 · utility

Assignee

• Roche Diagnostics Operations, Inc. · US

Inventors

• Uwe Wittmann · Worms, DE
• Helmut Rinne · Lübeck, DE
• Ralf Gessler · Weingarten, DE
• Hans-Joerg Pfleiderer

Key dates

• Filing date: May 22, 2009
• Grant date: Oct 5, 2010
• Expiry date: May 22, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/62
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention concerns an array and a method for dosing a hormone regulating the blood glucose, especially insulin, of a diabetic patient. In order to improve the administration of the hormone, the invention provides the following characteristic combination: a first sensor for measuring tissue glucose level; a controller having as an input the measured tissue glucose level from the first sensor, the controller having a control algorithm to determine an amount of hormone to be dosed based upon the measured tissue glucose level; a hormone dosing unit connected to the controller and automatically administering a hormone dose based upon a signal received from the controller; a second sensor for measuring an influencing patient variable; a pilot control device connected to the second sensor, the pilot control device connected to and forming a circuit with the controller, the pilot control device acting on the controller in accordance with the influencing patient variable that is measured by the second sensor, whereby the pilot control device reduces dead time of the controller.