Capillary tube

摘要

The invention relates to a capillary tube 1 made of glass or plastic for pipetting capillary blood with an anticoagulant inside the capillary tube 1 in order to carry out, for example, coagulation tests. So as to distribute the anticoagulant at a predetermined dose uniformly over the length of the capillary tube 1, a thread 2 of absorbent material that extends over the level of the blood sample is arranged inside the capillary tube 1 as carrier for the anticoagulant, it being possible for the thread 2 to consist of pure wool or cotton or a blend thereof.