The purpose of the present invention is to provide a free thrombus trapping equipment, which can trap the free thrombus surely and extend the available time by inhibiting the blood clotting reactions in the primary hemostasis stage concerns with blood platelet and the coagulation thrombus forming stage concerns with blood coagulation factor. The present invention provides a free thrombus trapping equipment, that immobilized a compound which is having ability of antithrombin to the surface, and provides a trapping method, which is including trapping the free thrombus using the free thrombus trapping equipment in blood of a living body.本發明之目的係提供一種游離血栓捕獲器具,其係藉由阻礙在血小板參與的一次止血階段或血液凝固因子參與的凝固血栓形成階段之血液凝固反應,而確實地將游離的血栓捕獲,且能夠將其能夠使用的時間延長。本發明係提供一種游離血栓捕獲器具,其係將具有抗凝血酶(antithrombin)能力的化合物固定化在表面而成,以及一種游離血栓的捕獲方法,其係包含使用該游離血栓捕獲器具將在活體內之血液中的游離血栓捕獲。
