Regeneration of biosensors
US6812031B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 2000 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | May 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/117497
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention comprises a method of regenerating a biosensor. It involves passing a background flow of fluid without reactive components through the flow passage. At a selected point in time a sample aliquot is injected into said background flow. At a point in time when a signal from said sensor is obtained the flow rate of the background fluid is increased. The invention also comprises a system for continuous monitoring of analytes in a biological fluid, the system having increased life by virtue of inherent regeneration of sensors employed. It comprises a biosensor (26, 30, 32), a sampling device (4) for providing a sample of said biological fluid, and means (10, 15, 18, 24) for passing a flow of a background fluid through said flow passage at selectable flow rates, means (20, 50, 55) for injecting said sample into said flow of background fluid, and means (50, 55) for increasing the flow rate of said combined flow. Means for achieving a washing action at the signal generating portion are provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.