PASSIVE MICROFLUIDIC METERING DEVICE
First Claim
1. An integrated fluidic device comprising:
- a sample fluid input chamber that provides an input of a sample fluid;
a first overspill chamber in fluid communication with the fluid input chamber;
a metering conduit in fluid communication with the fluid input chamber and the first overspill chamber, wherein the metering conduit meters a first metered volume of fluid from the sample fluid, and the first overspill chamber receives fluid from the sample fluid in excess of the first metered volume of fluid; and
a second overspill chamber in fluid communication with the metering conduit, wherein the metering conduit meters a second metered volume of fluid from the first metered volume of fluid, and the second overspill chamber receives fluid from the first metered volume of fluid in excess of the second metered volume of fluid.
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0 Petitions
Accused Products
Abstract
An integrated fluidic device comprising includes an input chamber that provides an input of a sample fluid, and a first overspill chamber in fluid communication with the input chamber. A metering conduit is in fluid communication with the fluid input chamber and the first overspill chamber. The metering conduit meters a first metered volume of fluid from the sample fluid, and the first overspill chamber receives fluid in excess of the first metered volume of fluid. A second overspill chamber is in fluid communication with the metering conduit. The metering conduit meters a second metered volume of fluid from the first metered volume of fluid, and the second overspill chamber receives fluid from the first metered volume of fluid in excess of the second metered volume of fluid. The second overspill chamber has a fluid actuated closable valve for controlling the metering of the second metered volume of fluid.
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Citations
20 Claims
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1. An integrated fluidic device comprising:
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a sample fluid input chamber that provides an input of a sample fluid; a first overspill chamber in fluid communication with the fluid input chamber; a metering conduit in fluid communication with the fluid input chamber and the first overspill chamber, wherein the metering conduit meters a first metered volume of fluid from the sample fluid, and the first overspill chamber receives fluid from the sample fluid in excess of the first metered volume of fluid; and a second overspill chamber in fluid communication with the metering conduit, wherein the metering conduit meters a second metered volume of fluid from the first metered volume of fluid, and the second overspill chamber receives fluid from the first metered volume of fluid in excess of the second metered volume of fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of metering a fluid in an integrated fluidic device comprising the steps of:
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inputting a sample fluid from an input fluid sample chamber into a metering conduit; providing a first overspill chamber in fluid communication with the sample fluid input chamber and the metering conduit; passively metering a first metered volume of fluid with the metering conduit from the sample fluid, wherein the first overspill chamber receives fluid from the sample fluid in excess of the first metered volume of fluid; providing a second overspill chamber in fluid communication with the metering conduit; and passively metering a second metered volume of fluid with the metering conduit, wherein the second overspill chamber receives fluid from the first metered volume of fluid in excess of the second metered volume of fluid. - View Dependent Claims (17, 18, 19, 20)
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Specification