Analyte monitor
AssigneeBayer HealthCare LLC
InventorsGerald H. Shaffer, Anurag Gupta
Life of this patent
Estimating the term…
Abstract
An analyte meter for an analyte test strip includes a light source configured to emit a light having a wavelength substantially similar to the maximum absorption band of Hb, an optics assembly configured to direct the light emitted by the light source to a test strip, and a photodetector configured to quantitatively detect light emanating from the test strip and to generate a signal correlating to an analyte concentration in the test strip.
Claims22
An analyte meter for an analyte test strip, comprising:
- a housing;
- a light source in the housing configured to emit a light having a wavelength substantially similar to the maximum absorption band of Hb;
- an optics assembly configured to direct the light emitted by the light source to a test strip;
- and
- a photodetector configured to quantitatively detect light emanating from the test strip and to generate a signal correlating to an analyte concentration in the test strip.
An analyte meter, comprising:
- a housing;
- a first light source in the housing configured to emit a first light;
- a second light source configured to emit a second light;
- an assay strip including first and second reaction zones, the first reaction zone being adapted for receiving a fluid sample containing a first analyte and a second analyte and including a first reagent capable of inducing an optical change in the fluid sample when reacted with the first analyte, the second reaction zone being adapted for receiving the fluid sample and including a second reagent capable of inducing an optical change in the fluid sample when reacted with the second analyte;
- an optics assembly configured to direct the first light to the first reaction zone and the second light to the second reaction zone;
- a first photodetector positioned to detect only optical radiation reflected from the first reaction zone and to generate a first signal indicative of an amount of analyte in the fluid sample positioned in the first reaction zone;
- a second photodetector positioned to detect only optical radiation reflected from the second reaction zone and to generate a second signal indicative of an amount of analyte in the fluid sample positioned in the second reaction zone.
An analyte meter for detecting an analyte concentration in a test strip having a reaction zone adapted for receiving a fluid sample containing an analyte and including a reagent capable of inducing an optical change in the fluid sample when reacted with the analyte, comprising:
- a light source configured to emit a light along an illumination path;
- an optics assembly configured to direct the light emitted by the light source to the reaction zone of the test strip, the optics assembly including an array of microlenses positioned along the illumination path;
- and
- a photodetector configured to quantitatively detect light reflected from the reaction zone and to generate a signal correlating to an amount of analyte in the fluid sample.
An optics assembly for an analyte meter system, comprising:
- a receiving portion adapted for receiving at least one test strip, the at least one test strip having a reaction zone adapted for receiving a fluid sample containing an analyte and including a reagent capable of inducing an optical change in the fluid sample when reacted with the analyte;
- a light source configured to emit a green light having a wavelength substantially similar to the maximum absorption band of Hb;
- at least one reflecting element configured to direct the light emitted by the light source to the reaction zone of the test strip placed in said receiving portion;
- a photodetector configured to quantitatively detect light emanating from the reaction zone of the test strip and to generate a signal correlating to an amount of analyte in the fluid sample.
Dependencies are inferred from the claim text.