Patent · US Active

Method and apparatus for analyzing particles in a fluid

US7605919B2 · kind B2 · utility

15Cited by

18References

27Claims

0Family size

Assignee

Brightwell Technologies Inc. · CA

Inventors

Peter Oma · Ottawa, CA
Jarret A. Diggins · Ottawa, CA
Antonio Matias · Moissy-Cramayel, FR

Key dates

Filing date	Oct 28, 2007
Grant date	Oct 20, 2009
Priority date	—
Expiry date	May 22, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01N15/1433
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and apparatus for analyzing particles in a fluid, such as proteinaceous particles in a pharmaceutical formulation intended for parenteral delivery, are disclosed. The method comprises arranging a fluid to form a wide and shallow stream, acquiring a sequence of magnified still images of the stream, and processing said images, so as to highlight images of particles in the flowing fluid. The apparatus includes a light source, a flow cell, a lens with increased depth of view, a detector array, and a processor for acquiring and processing the images of particles in the fluid stream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.