Coagulation test device, system, and method of use
First Claim
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1. A device for processing a cartridge containing a whole blood sample, the device comprising:
- a recess for receiving the cartridge,a vacuum source coupled to the cartridge,an actuator linked to the cartridge to agitate the cartridge; and
a controller configured toactivate the vacuum source to move the whole blood sample from a container into a plurality of channels in the cartridge and subsequently into a plurality of reagent chambers where the blood mixes with a reagent, and then through a plurality of serpentine-shaped channels to a plurality of test chambers,activate the actuator to agitate the cartridge,receive signals from a plurality of sensors, each sensor associated with one of the test chambers, where the signals are based on the presence of a spherical member within a magnetic field generated by a magnet positioned adjacent to each of the test chambers,determine whether coagulopathy is present in the whole blood for each test chamber, andoutput an indicator whether coagulopathy is present in the whole blood for each test chamber on a display.
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Abstract
A coagulation test device for measuring clotting time and clot characteristics of a whole blood sample under different hemostatic conditions. Results of the test are used as an aid in management of patients with coagulopathy of unknown etiology in order to help the physician determine appropriate clinical action to arrest bleeding in a patient.
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Citations
22 Claims
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1. A device for processing a cartridge containing a whole blood sample, the device comprising:
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a recess for receiving the cartridge, a vacuum source coupled to the cartridge, an actuator linked to the cartridge to agitate the cartridge; and a controller configured to activate the vacuum source to move the whole blood sample from a container into a plurality of channels in the cartridge and subsequently into a plurality of reagent chambers where the blood mixes with a reagent, and then through a plurality of serpentine-shaped channels to a plurality of test chambers, activate the actuator to agitate the cartridge, receive signals from a plurality of sensors, each sensor associated with one of the test chambers, where the signals are based on the presence of a spherical member within a magnetic field generated by a magnet positioned adjacent to each of the test chambers, determine whether coagulopathy is present in the whole blood for each test chamber, and output an indicator whether coagulopathy is present in the whole blood for each test chamber on a display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification