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US 10,705,072 B1Granted
Coagulation test device, system, and method of use
AssigneeCoagulation Sciences LLC
InventorsSheldon Goldstein, Michael Kagan, Nicholas Lauder, Maury D. Cosman
Life of this patent
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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.
Claims20
A method of determining clotting characteristics of a whole blood sample, the method comprising:
- introducing the whole blood sample into a cartridge having a plurality of test channels, wherein each test channel includes a reagent chamber, a test chamber, and a metal sphere in each test chamber;
- in at least one of the test channels
- moving a portion of the whole blood sample into the reagent chamber of the at least one test channel;
- mixing the portion of the whole blood sample with a reagent in the reagent chamber of the at least one test channel;
- moving the portion of the whole blood sample from the reagent chamber to the test chamber of the at least one test channel;
- agitating the cartridge to move the metal sphere in the test chamber of the at least one test channel;
- while the cartridge is agitated, detecting movement of the metal sphere in the test chamber of the at least one test channel using two sensors positioned adjacent to the test chamber;
- determining, with a controller, one or more clot characteristics of the portion of the whole blood sample based on detection of movement of the metal sphere in the test chamber of the at least one test channel as the metal sphere passes the two sensors;
- and
- generating an indicator of the one or more clot characteristics for display to a user.
7 more elements
Dependencies are inferred from the claim text.