Hewlett-packard Development Company, L.P.

Robert Moline

Manish Giri

Chantelle Domingue

Jeffrey Allen Nielsen

Christie Dudenhoefer

James D Hankins

Kenneth Joseph Duda

Matthew C Still

Darrel E Pozzesi

Mark W Woodruff

Jeremy Sells

Chantelle E Domingue

Examples herein provide a device. The device includes a sample delivery component, which includes: a reagent chamber to contain at least one reagent; a sample chamber to contain a fluid sample; and a delivery channel extending from the reagent chamber and in fluid communication with the sample chamber and an output port, wherein the delivery channel is conducive mixing the at least one reagent and the fluid sample to form a mixture before the mixture reaches the output port and be discharged therefrom. The device includes a testing cassette detachable from the delivery component, which includes: an input port in fluid communication with a microfluidic reservoir, the input port to receive the discharged fluid sample from the output port; and a micro-fabricated integrated sensor in a microfluidic channel extending from the microfluidic reservoir.

Devices having a sample delivery component

Vented microfluidic reservoirs can include a housing and a vent coupled to the housing to vent air associated with a fluid sample communicated into the housing to an environment surrounding a microfluidic device coupled to the housing.

Vented microfluidic reservoirs

A fluid testing cassette may comprise a microfluidic channel having a constriction and a micro-fabricated integrated sensor within the constriction. In one implementation, the constriction is less than or equal to 30 &#x3bc;m. In one implementation, the cassette further comprises a nozzle connecting the microfluidic channel to the discharge reservoir, wherein a thermal resistor expels fluid within the microfluidic channel into the discharge reservoir.

Fluid testing chip and cassette

Fluidic dispense device

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Corvallis, OR, United States of America

Robert Moline