Quidel Cardiovascular Inc.

Alere San Diego, Inc.

Austin Matthew Derfus

Paul Crivelli

Armando R Tovar

Emily Parker

Tuan Do

Remus Anders Brix Haupt

Gregory Reneff

William Patrick Coffey

Paul Michael Crivelli

Tuan Hoang Do

Armando Raul Tovar

A combination of capillary forces and gas pressure is used to control the movement of liquid samples within a microfluidic device. A liquid sample introduced to a proximal portion of a capillary channel of a microfluidic device moves by capillary action partway along the capillary channel. As the liquid sample moves, a pressure of a gas acting upon a distal gas-liquid interface of the liquid sample increases by an amount sufficient to stop further movement of the liquid sample. To initiate further movement of the liquid sample, a pump connected to a distal portion of the capillary channel decreases the pressure of the gas acting upon the distal gas-liquid interface of the liquid sample by an amount sufficient to permit the liquid sample to move by capillary action further along the capillary channel of the microfluidic device.

Microfluidic device, system and method

Growing community of inventors

Carlsbad, CA, United States of America

Austin Matthew Derfus