Method of detecting leukemia
US9310328B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2015 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Jun 17, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/012
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The method of detecting leukemia involves placing a suspension of red blood cells in a reservoir having a capillary tube partially immersed in the reservoir. An alternating current is applied to electrodes (one in the reservoir, the other in the capillary tube) at different frequencies. The electrical resistance is measured at the interface between the electrode and the suspension in the capillary tube. At the same time, CCD (charge coupled device) cameras take images, both top views and side views. The electrical resistance will show a peak at a characteristic resonant frequency, which is different for cancerous blood cells than for normal blood cells. The CCD images will show a pattern of maximum repulsion from the electrode at the resonant frequency in the top view, and minimum height of blood cells on the side of the electrode at the resonant frequency in the side view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.