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[Study of thrombus resistance of materials using the prothrombin consumption test].

The work presents a simple and informative method of the assessment of thromboresistivity of opaque materials by the test of determination of prothrombin consumption in vitro. The average time of prothrombin consumption in the blood after its contact with a glass was 136 +/- 13,3 sec., after the contact with a siliconized glass it was 62 +/- 3,45 sec. which suggests higher thromboresistivity of silicon. The difference of the indices is highly significant (P less than 0,001). A conclusion is made that the method concerned is a reliable one.