AUTOMATED PIPETTING APPARATUS HAVING A COMBINED LIQUID PUMP AND PIPETTE HEAD SYSTEM
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Abstract
The technology described herein generally relates to systems for extracting polynucleotides from multiple samples, particularly from biological samples, and additionally to systems that subsequently amplify and detect the extracted polynucleotides. The technology more particularly relates to microfluidic systems that carry out PCR on multiple samples of nucleotides of interest within microfluidic channels, and detect those nucleotides. The technology still more particularly relates to automated devices for carrying out pipetting operations, particularly on samples in parallel, consistent with sample preparation and delivery of PCR-ready nucleotide extracts to a cartridge wherein PCR is run.
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Citations
37 Claims
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1-17. -17. (canceled)
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18. A liquid dispenser comprising:
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a plurality of dispense heads, each having one pipette tip connection configured to accept one pipette tip extending along a vertical direction when mounted; and an air handler comprising; a manifold configured to connect to a pump, wherein the manifold comprises a gas-line which splits into one or more lines within the manifold, each line to supply a separate dispense head of the plurality of dispense heads with gas; and a plurality of independently controllable valves configured to selectively divert gas between the pump and the plurality of dispense heads; wherein the plurality of dispense heads are movable in a vertical direction. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A liquid dispenser comprising:
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a plurality of dispense heads, each dispense head configured to connect to a pipette tip extending along a vertical direction when mounted; a plurality of valves, each valve of the plurality of valves associated with a corresponding dispense head of the plurality of dispense heads and configured to control the operation of the corresponding dispense head of the plurality of dispense heads including controlling when to reduce pressure, thereby causing a sucking operation, or to increase pressure, thereby causing a dispense operation; and a manifold configured to divert gas from a gas source to the plurality of valves, each valve of the plurality of valves configured to be in communication with the manifold, wherein the manifold comprises a gas-line which splits into one or more lines within the manifold, each line to supply gas to a separate valve of the plurality of valves. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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Specification