Method of testing adequacy of cells in a specimen
US6939687B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jan 13, 2003 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Nov 7, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a device and method for determining the adequacy of squamous (ectocervical) cells, columnar (endocervical) cells, neutrophils, and noncellular material in a liquid based cytology specimen. The invention first analyzes a liquid based cytology specimen using light scatter to create a light scatter characteristic representing a predetermined cell. Next the invention determines the presence of squamous (ectocervical) cells versus columnar (endocervical) cells versus neutrophils versus noncellular material using the results of the light scatter. The light scatter characteristic that may be used may be forward light scatter, side light scatter, or both side and forward light scatter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.