Particle sorter with neutralized collection wells and method of using same
US4538733A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1983 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Oct 14, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/149
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for sorting particles comprises a nozzle or the like for forming discrete droplets of particles from a flowing liquid stream containing those particles. A detector is provided for detecting particles in the stream. A charging electrode, responsive to the detector, charges some droplets of selective interest with a positive electrical charge and some with a negative electrical charge. Electrical deflecting plates deflect charged droplets of selective interest. Droplets of selective interest, charged with opposite polarities, are collected in a collection well inside which the electrical charge is substantially neutralized. A method for sorting particles, such as cells or the like, substantially in accordance with the above-described apparatus is another aspect of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.