Roche Diabetes Care, Inc.

Roche Diagnostics Operations, Inc.

Jenoptik Polymer Systems Gmbh

F. Hoffmann-la Roche Ag

Jenoptik Optical Systems Gmbh

Sebastian Trick

Jochen Schulat

Stefan Kalveram

Jan Buchwald

Susanne Baldus

Susanne Gaumitz

Methods are provided for correcting an analyte concentration measurement that may be influenced by hematocrit (HCT), especially a glucose concentration measurement. The methods include determining by means of a reference instrument a HCT reference value of a reference blood sample taken from a specific user, applying a fresh blood sample of the user on a disposable analytical test element, measuring the glucose value of the fresh blood sample by single use of the test element in a glucose meter, determining a HCT correction value using at least the HCT reference value, and adjusting the measured glucose value using the HCT correction value to receive an adjusted glucose value. Also provided are devices and system incorporating or for performing the methods.

Methods of hematocrit correction as well as glucose meters and systems adapted therefor

Devices and methods are provided for determining concentration of at least one analyte in a body fluid sample such as blood, especially a blood glucose concentration. In the methods, a test element is provided that has at least one reagent element configured so as to carry out at least one optically detectable detection reaction in the presence of the analyte. The body fluid sample is applied to the test element and a time course of at least one optical measurement variable of the reagent element is detected. At least one first time interval of the time course of the optical measurement variable is used to determine at least one disturbance variable value in the body fluid sample, in particular a concentration of a disturbance variable such as hematocrit. At least one second time interval of the time course is used to determine analyte concentration. The at least one disturbance variable value can be used to correct/compensate the analyte concentration.

Devices and methods of determining disturbance variable-corrected analyte concentrations

A measuring module for remission photometric analysis of one or a plurality of specimens is provided with the following features: a transmitter with a transmission channel for transmitting a measuring radiation to location of the specimen; a first focusing device for focusing the measuring radiation on the specimen; a receiver with a receiving channel to receive the radiation reflected by the specimen; a second focusing device made of plastic for focusing the measuring radiation reflected by the specimen onto the receiver, whereby the second focusing device further comprises a filter which is designed to filter a fluorescence radiation from the specimen excited by the measuring radiation.

Measuring module for remission photometric analysis and method for the production thereof

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Mannheim, Germany

Sebastian Trick