System for nucleic acid based diagnostic assay
First Claim
1. An automated system for carrying out reactions on a plurality of liquid samples, comprising:
- a plurality of reaction devices in which said liquid samples are receivable, each of said reaction devices including a sample area for receiving a liquid sample, a reaction area separate from said sample area into which said liquid sample is movable from said sample area to carry out a reaction on said sample, and a pneumatic port for allowing air to be aspirated from and dispensed into said reaction device to move said liquid sample between said sample area and said reaction area;
a reaction station adapted to hold said plurality of reaction devices;
a robotically controlled aspiration and dispensing head adapted to move into contact with said pneumatic ports of said reaction devices, and to aspirate air from and dispense air into said pneumatic ports in order to move the liquid samples in said reaction devices between said sample areas and said reaction areas; and
a programmable control device for causing said robotically controlled aspiration and dispensing head to move into contact with said pneumatic ports of said reaction devices, and to withdraw air from and dispense air into said reaction devices in order to move said liquid samples between said sample areas and said reaction areas.
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Accused Products
Abstract
An automated system is provided for carrying out nucleic acid based assays on a plurality of liquid samples with little or no intervention by a human operator. The system includes at least one reaction station adapted to hold and apply controlled amounts of heat to a plurality of reaction devices in which the liquid samples are receivable. Each of the reaction devices includes a sample area for receiving a liquid sample, a reaction area into which the liquid sample is movable to carry out a nucleic acid decontamination or amplification reaction on the sample, and a pneumatic port for allowing air to be aspirated from and dispensed into the reaction device to move the sample between the sample area and the reaction area. A robotically controlled aspiration and dispensing head is adapted to move into contact with the pneumatic ports of the reaction devices, and to aspirate air from and dispense air into the pneumatic ports of the reaction devices in order to move the liquid samples between the sample and reaction areas of the reaction devices. A programmable control system is provided for causing the robotically controlled aspiration and dispensing head to move into contact with the pneumatic ports of the reaction devices, and to aspirate air from and dispense air into the reaction devices in order to cause the desired movement of the liquid samples within the reaction devices. The robotically controlled aspiration and dispensing head is also adapted to transfer the liquid samples to and from the reaction devices using disposable pipettes, and to introduce liquid reagents into the reacted samples after the samples have been transferred from the reaction devices to separate assay devices. A robotically controlled wash head is also provided to aspirate and dispense wash fluids and reagent fluids from the assay devices.
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Citations
21 Claims
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1. An automated system for carrying out reactions on a plurality of liquid samples, comprising:
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a plurality of reaction devices in which said liquid samples are receivable, each of said reaction devices including a sample area for receiving a liquid sample, a reaction area separate from said sample area into which said liquid sample is movable from said sample area to carry out a reaction on said sample, and a pneumatic port for allowing air to be aspirated from and dispensed into said reaction device to move said liquid sample between said sample area and said reaction area; a reaction station adapted to hold said plurality of reaction devices; a robotically controlled aspiration and dispensing head adapted to move into contact with said pneumatic ports of said reaction devices, and to aspirate air from and dispense air into said pneumatic ports in order to move the liquid samples in said reaction devices between said sample areas and said reaction areas; and a programmable control device for causing said robotically controlled aspiration and dispensing head to move into contact with said pneumatic ports of said reaction devices, and to withdraw air from and dispense air into said reaction devices in order to move said liquid samples between said sample areas and said reaction areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification