Device for measuring an analyte in an eye fluid

Inventors

MUELLER ACHIM, null • Müller, Achim • Herbrechtsmeier, Peter • Haberstroh, Klaus • Gruler, Roman

Assignees

Eyesense AG

Abstract

The invention proposes a manual measuring appliance (112) and an analytical measuring system (110) which can be used to measure at least one analyte in an eye fluid of an eye (114). The handheld measuring appliance (112) comprises a measuring system (120) and a positioning system (122). The measuring system (120) can measure at least one property of the at least one analyte and/or at least one analyte-dependent change of property of at least one ocular sensor (116) in the eye fluid, and this can be used to infer a concentration of the analyte in the eye fluid. The positioning system (122) is set up to measure a spatial positioning, wherein the spatial positioning comprises a distance between at least one measurement location in the eye (114) and the handheld measuring appliance (112) and also furthermore at least one further positioning co-ordinate. Furthermore, the handheld measuring appliance comprises a calibration system (128), wherein the calibration system (128) is set up to perform a comparison measurement of at least one analyte concentration in a body fluid and/or to adopt measurement data from a comparison measurement performed using a separate measuring appliance and to take them into account when determining the concentration of the at least one analyte.

Core Innovation

The invention relates to a handheld measuring appliance for measuring at least one analyte in an eye fluid in an eye. The appliance comprises a measuring system set up to measure at least one property of the analyte and/or at least one analyte-dependent change of property in at least one ocular sensor in the eye fluid, together with a positioning system set up to measure a spatial positioning of the measurement location and the handheld measuring appliance.

The spatial positioning comprises a distance between at least one measurement location in the eye and the handheld measuring appliance and at least one further positioning co-ordinate. The positioning is used in the overall determination of concentration, including triggering or conditioning the measurement when the positioning reaches a prescribed nominal positioning or a prescribed nominal positioning range.

The handheld measuring appliance further comprises an integrated calibration system set up to perform a comparison measurement of at least one analyte concentration in a body fluid and to take the comparison measurement into account when determining the concentration of the analyte. The comparison measurement is performed using a separate measuring appliance or, in the alternative independent claim, using an electrochemical or optical test strip, and the handheld measuring appliance is set up to ask a patient to perform a calibration measurement.

Claims Coverage

The document provides two independent claim scopes for a handheld measuring appliance. Across the claims, three inventive features are present: analyte measurement in eye fluid using an ocular sensor, spatial positioning measurement including distance and at least one further positioning co-ordinate, and integrated calibration based on a comparison measurement with patient prompting.

The independent claims cover the combination of analyte measurement in eye fluid with an ocular sensor, spatial positioning defined by distance and at least one further positioning co-ordinate, and integrated calibration that uses a comparison measurement when determining analyte concentration and prompts the patient to perform calibration.

Stated Advantages

Documented Applications