Consumable tube for use with a flow cytometry-based hematology system
USRE42143E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2007 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Mar 6, 2027 |
Classification
- Technology area (CPC —)General
Abstract
The present invention is a flow cytometry-based hematology system useful in the analysis of biological samples, particularly whole blood or blood-derived samples. The system is capable of determining at least a complete blood count (CBC), a five-part white blood cell differential, and a reticulocyte count from a whole blood sample. The system preferably uses a laser diode that emits a thin beam to illuminate cells in a flow cell and a lensless optical detection system to measure one or more of axial light loss, low-angle forward scattered light, high-angle forward scattered light, right angle scattered light, and time-of-flight measurements produced by the cells. The lensless optical detection system contains no optical components, other than photoreactive elements, and does not include any moving parts. Finally, the system uses a unique system of consumable reagent tubes that act as reaction chambers, mixing chambers, and waste chambers for the blood sample analyses. The consumable tubes incorporate reference particles, which act as internal standards to ensure that the dilutions made during processing of the samples have been carried out correctly, and to ensure that the instrume…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.