Injection molding a plastic assay cuvette having low birefringence

US5376313A · kind A · utility

Assignee

• Abbott Laboratories · US

Inventors

• William J. Kanewske, III · Dallas, US
• James A. Vaught · Euless, US
• Richard L. Vickstrom · Algonquin, US
• Frederic L. Clark · Plano, US
• Gilbert Clift · Mesquite, US
• Kendall B. Hendrick · Tucson, US
• Peter A. Lagocki · Paddy Lane, US
• Richard R. Martin · Tulsa, US
• James E. Mitchell · Lake Barrington, US
• Larry E. Moore · Plano, US
• Charles D. Pennington · Lake Zurich, US
• Edna S. Walker · Chicago, US
• B. Jane Smith · Vernon Hills, US
• Apparao Tayi · Grayslake, US
• David Arthur Yost · Los Altos, US

Key dates

• Filing date: Jul 20, 1992
• Grant date: Dec 27, 1994
• Expiry date: Jul 20, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/2575
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A plastic assay cuvette having the desired optical properties for the analysis of a test sample or reaction mixture thereof, and a method for making such plastic assay cuvette, are described. The optical properties of the plastic assay cuvette are substantially the same as the optical properties of glass wherein low birefringence throughout the optical read region thereof is provided. When used for the analysis of a test sample or reaction mixture thereof, such as in fluorescence polarization assays and absorbance assays, the plastic assay cuvette provides accurate and reproducible results while, at the same time, provides a low-cost disposable assay cuvette which can be used in place of conventional glass assay cuvettes.