1
Timothy J Ohara, Maria Teodorczyk, Mahyar Z Kermani: Sample detection to initiate timing of an electrochemical assay. Lifescan, James Riesenfeld, February 27, 2001: US06193873 (386 worldwide citation)

An electrochemical assay includes a method for determining with great accuracy the time at which an applied sample bridges a gap between the electrodes of an electrochemical cell. The method involves applying a constant small current across the gap, while monitoring the potential difference between ...


2
Borzu Sohrab: Protective shield for a blood glucose strip. Lifescan, James Riesenfeld, February 3, 1998: US05714123 (277 worldwide citation)

A modified blood glucose test strip reduces the risk of contamination when it is used with a blood glucose meter. The modified strip has adhered to its top surface a protective shield that is preferably cut from a sheet of transparent plastic. The shield permits access to the sample-receiving surfac ...


3
William C Taylor, Richard Wayne LeVaughn, John M Purlee, Christopher John Ruf: Lancing device causing reduced pain. Lifescan, James Riesenfeld, April 4, 2000: US06045567 (261 worldwide citation)

A lancing device has a spring-loaded lancet holder slidably mounted within a housing for carrying a disposable lancet and needle. A knob on the back of the device has forward-extending fingers that stop the lancet holder at an adjustable predetermined point after the device has been fired. The finge ...


4
Richard Wayne LeVaughn, John M Purlee, Christopher John Ruf, William C Taylor: Lancing device having a releasable connector. Lifescan, James Riesenfeld, March 6, 2001: US06197040 (216 worldwide citation)

A lancing device has a spring-loaded lancet holder slidably mounted within a housing for carrying a disposable lancet and needle. A slider mounted in a slot in the housing is moved back for cocking the device and, after the lancet is fired, is moved forward to eject the used lancet. A releasable con ...


5
David P Matzinger, George M Daffern: Analyte detection device having a serpentine passageway for indicator strips. LifeScan, James Riesenfeld, May 7, 1996: US05515170 (200 worldwide citation)

An apparatus comprising a passageway for accepting a strip for determining the presence or quantity of an analyte is provided. The passageway has a serpentine shape to maintain the strip against an optical aperture in the passageway wall, insuring that a constant optical reading is obtained.


6
David Matzinger, Ian Harding, Michael O&apos Neil: Diagnostic test strip having on-strip calibration. Lifescan, James Riesenfeld, January 2, 2001: US06168957 (200 worldwide citation)

A dry phase reagent test strip for measuring the concentration of an analyte in a biological fluid includes a colored indicator whose hue indicates a calibration of the strip. Preferably, the test strip measures the concentration of glucose in whole blood.


7
Joel Douglas, Ernest Kiser, Michael F Tomasco, Remedios Dato, Edward G Rice, Deborah P Tuohy, Mark Maxson, Zbigniew Witko, Scott Segelke: Visually-readable reagent test strip. Lifescan, James Riesenfeld, December 1, 1998: US05843691 (196 worldwide citation)

A multilayer reagent test strip measures the concentration of analyte in a liquid sample that is applied to it. The sample is guided to a number of assay areas arrayed along the strip, where the analyte can react with a reagent to cause a color change. Each assay area also includes an inhibitor for ...


8
Saker A Karimi, Geoffrey McGarraugh, Yeung S Yu: Control solution for a blood glucose monitor. LifeScan, James Riesenfeld, February 25, 1997: US05605837 (193 worldwide citation)

A control solution for use with a photometric blood glucose strip contains glucose in an aqueous suspension of carbon black. The control solution mimics blood when applied to a whole blood glucose test strip, which is then inserted into a meter. A meter reading within a predetermined range indicates ...


9
Michael F Tomasco, Maria Teodorczyk, Remedios Dato, Edward G Rice: Blood glucose strip having reduced side reactions. LifeScan, James Riesenfeld, April 15, 1997: US05620863 (172 worldwide citation)

A reagent strip for measuring glucose concentration in a biological fluid containing red blood cells has reduced interference of hematocrit with the glucose measurement. When a biological fluid contacts the strip, it causes, in a reagent impregnated in the strip, a color change which is a measure of ...


10
Yeung S Yu: Blood glucose strip having reduced sensitivity to hematocrit. Lifescan, James Riesenfeld, August 4, 1998: US05789255 (172 worldwide citation)

A reagent strip for measuring glucose concentration in whole blood has reduced interference of hematocrit with the glucose measurement. When a biological fluid contacts the strip, it causes, in a reagent impregnated in the strip, a color change that is a measure of the glucose concentration in the f ...



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