Sample analyzing device and sample analyzing method
US9557326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2011 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Nov 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N35/0098
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention provides a sample analyzing device and sample analyzing method designed to suppress nonuniform capture of magnetic particles (10) and detect a desired substance with higher accuracy. The sample analyzing device includes a flow channel (15) that conducts thereinto a sample which contains the magnetic particles (10), and magnetic field generating means (12) that generates magnetic fields for capturing the magnetic particles (10) in a magnetic particles capturing region of the flow channel (15); wherein the flow channel has at least one of structural characteristics that a cross-sectional area of the flow channel, at a downstream end of the magnetic particles capturing region, is larger than a cross-sectional area of the flow channel, at an upstream end of the magnetic particles capturing region, and that the magnetic fields generated by the magnetic field generating means (12) have a greater magnitude at a downstream side of the magnetic particles capturing region than at an upstream side thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.