Method for measuring analyte concentration in a liquid sample
US8691075B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 2009 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Sep 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/3273
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The blood glucose analysis technique and system described herein address the issue of hematocrit interference when rapidly detecting glucose concentrations. It addresses this issue by using a differential pulse voltammetry technique in which short high, frequency voltage pulses are applied to keep the diffusion layer within the reagent of the working electrode, and the pulses are applied in a limited voltage window (or range) that is below the peak, diffusion-limited current. The readings below the peak are then used to determine glucose concentrations. With this technique, glucose concentrations can be determined relatively fast (e.g., within 5 seconds) and independently of the hematocrit levels of the fluid being analyzed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.