System and method for detection of contact with a test strip using capacitive sensing

An analyte test meter that detects contact between a user and an electrochemical test strip includes a test strip port, a capacitive sensor positioned proximate to the test strip port, and a controller connected to the test strip port and the capacitive sensor. The controller is configured to identi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Celentano, Michael J
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	An analyte test meter that detects contact between a user and an electrochemical test strip includes a test strip port, a capacitive sensor positioned proximate to the test strip port, and a controller connected to the test strip port and the capacitive sensor. The controller is configured to identify insertion of the electrochemical test strip into the test strip port, apply a drive signal to the capacitive sensor, measure a first response to the drive signal from the capacitive sensor, identify dosing of a fluid sample on the electrochemical test strip, apply the drive signal to the capacitive sensor after the dosing, measure a second response to the drive signal from the capacitive sensor, and detect contact between a body of a user and at least one electrode in the electrochemical test strip in response to a difference between the first and second responses exceeding a predetermined threshold.