Single channel cartridge device for coagulation assays in fluid samples
First Claim
1. A method of analyzing a biological sample within a sample analysis cartridge, the method comprising:
- receiving a biological sample in an inlet chamber of the sample analysis cartridge;
moving, using a pump, the biological sample from the inlet chamber to a conduit of the sample analysis cartridge; and
pushing, using the pump, the biological sample in the conduit to a fluidic lock valve, such that at least a portion of the biological sample is positioned in the conduit over a portion of a sensor chip comprising a first micro-environment sensor and a second micro-environment sensor, each of the first micro-environment sensor and the second micro-environment sensor comprising at least one transducer coated with a polymer layer,wherein the conduit comprises a first reagent integrated within, coated over, positioned adjacent, or a combination thereof to the polymer layer of the first micro-environment sensor, and a second reagent integrated within, coated over, positioned adjacent, or a combination thereof to the polymer layer of the second micro-environment sensor, andwherein the first micro-environment sensor is a prothrombin time (PT) sensor, and the second micro-environment sensor is an activated partial thromboplastin time (aPTT) sensor.
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Accused Products
Abstract
The present invention relates to analytical testing devices comprising a single channel with micro-environment sensors and methods for assaying coagulation in a fluid sample applied to the micro-environment sensors, and in particular, to performing coagulation assays using a single channel with micro-environment sensors in a point of care test cartridge. For example, the present invention may be directed to a sample analysis cartridge including an inlet chamber configured to receive a biological sample and a conduit fluidically connected to the inlet chamber. The conduit includes a sensor chip including a first micro-environment sensor and a second microenvironment sensor, and a fluid lock valve. The sample analysis cartridge further includes a pump configured to push the biological sample over the first micro-environment sensor and the second microenvironment sensor to the fluidic lock valve such that the biological sample is positioned over the first micro-environment sensor and the second micro-environment sensor.
108 Citations
11 Claims
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1. A method of analyzing a biological sample within a sample analysis cartridge, the method comprising:
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receiving a biological sample in an inlet chamber of the sample analysis cartridge; moving, using a pump, the biological sample from the inlet chamber to a conduit of the sample analysis cartridge; and pushing, using the pump, the biological sample in the conduit to a fluidic lock valve, such that at least a portion of the biological sample is positioned in the conduit over a portion of a sensor chip comprising a first micro-environment sensor and a second micro-environment sensor, each of the first micro-environment sensor and the second micro-environment sensor comprising at least one transducer coated with a polymer layer, wherein the conduit comprises a first reagent integrated within, coated over, positioned adjacent, or a combination thereof to the polymer layer of the first micro-environment sensor, and a second reagent integrated within, coated over, positioned adjacent, or a combination thereof to the polymer layer of the second micro-environment sensor, and wherein the first micro-environment sensor is a prothrombin time (PT) sensor, and the second micro-environment sensor is an activated partial thromboplastin time (aPTT) sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification