Blood coagulation time test apparatus and method

Details Blood coagulation time test apparatus and method Blood coagulation time test apparatus and method

G - Physics

01

N

G01N 33/86 (2006.01) G01N 21/03 (2006.01) G01N 21/85 (2006.01) G01N 33/49 (2006.01)

Patent

CA 2124462

The present invention is an apparatus and method for performing a coagulation time test on a sample of blood wherein the blood (16) is deposited in a fluid reservoir (18) and disposable cuvette (12). Within the cuvette (12) is formed a capillary conduit (30) having at least one restricted region (44). The cuvette (12) is inserted into a testing machine (14) which engages the cuvette (12) and draws blood (16) from the fluid reservoir (18) into the capillary conduit (30). The blood in then caused to reciprocally move within the capillary conduit (30) whereby the blood (16) is forced to traverse the restricted region (44). The testing machine (14) measures the time required each time the blood (16) is caused to traverse the restricted region (44). When a measured time is a predetermined percentage longer than an immediately preceding time, coagulation is considered to have occurred and the overall coagulation time is displayed to the operator.

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