Device and method for completing a fluidic circuit

US5620657A · kind A · utility

Assignee

• Behringwerke Aktiengesellschaft · DE

Inventors

• N. Chung Sizto · Palo Alto, US
• Nurith Kurn · Palo Alto, US
• Rajesh D. Patel · Redwood City, US
• Martin Becker · West Hollywood, US
• Edwin F. Ullman · Atherton, US

Key dates

• Filing date: May 30, 1995
• Grant date: Apr 15, 1997
• Expiry date: May 30, 2015

Classification

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

Abstract

Disclosed are assay apparatus, devices and methods that permit longitudinal capillary flow of liquid between two pieces of bibulous material which, prior to actuation, are in a non-capillary flow relationship to each other. In particular, the devices utilize a distortable member which when distorted, actuates the device by creating a capillary flow relationship between the two pieces of bibulous material. In an alternative embodiment the apparatus, devices, and methods include at least one additional piece of bibulous material.