Analyte meter and method of operation

Patent metadata

Field	Value
Publication number	US-2016299097-A1
Application number	US-201615184133-A
Country	US
Kind code	A1
Filing date	Jun 16, 2016
Priority date	Apr 5, 2013
Publication date	Oct 13, 2016
Grant date	—

Abstract

An analyte meter having a test strip port is configured to transmit an electric signal through a received test strip with a sample. A pair of electrodes apply the electric signal and receive an electrical response from the test strip. A processing unit analyzes the electrical response and uses the response to determine an analyte level of the sample.

First claim

1 .- 27 . (canceled)

28 . A portable analyte test meter for use with an associated analytical test strip in the determination of a hematocrit concentration of a blood sample applied to the test strip through finger contact, said test meter comprising:
a housing; a port for receiving the associated analytical test strip; a low pass filter circuit block disposed in the housing; a square wave generator circuit block disposed in the housing and connected to the low pass filter circuit block, the square wave generator configured to generate a square wave at a frequency in the range of about 70 kHz to about 80 kHz and to transmit the generated square wave signal to the associated analytical test strip in the port via the low pass filter circuit block; and a processing block configured to calculate a magnitude of a signal received from the associated analytical test strip, wherein the signal received from the associated analytical test strip originated from the generated square wave.

29 . The portable analyte test meter of claim 28 , wherein the port comprises electrodes for electrically connecting to the associated analytical test strip.

30 . The portable analyte test meter of claim 29 , wherein the magnitude of the signal received from the associated analytical test strip indicates the hematocrit concentration and wherein the processing block calculates the hematocrit concentration based on the magnitude of the signal.

31 . The portable analyte test meter of claim 28 , wherein the associated analytical test strip comprises a chamber having a sample therein.

32 . The portable analyte test meter of claim 28 , wherein the low pass filter block is configured to transform the square wave signal into a sinusoidal signal.

33 .- 36 . (canceled)

Assignees

• Lifescan Scotland Ltd

Inventors

• Lloyd Timothy
• Mccoll David
• Smith Antony
• Guthrie Brian
• Elder David
• Massari Rossano
• Forlani Christian

Classifications

• G01N27/3275

  Sensing specific biomolecules, e.g. nucleic acid strands, based on an electrode surface reaction · CPC title

• G01N27/3273 Primary

  Devices therefor, e.g. test element readers, circuitry (details not specific to biochemical electrodes G01N33/4875) · CPC title

• G01N27/3274

  Corrective measures, e.g. error detection, compensation for temperature or hematocrit, calibration (coding of calibration information G01N33/48771) · CPC title