Auxiliary apparatus for sampling blood serum

An auxiliary apparatus for sampling blood serum, comprising:

• a disklike flattening member having a flat surface and capable of flattening a separation surface of a blood serum separating medium contained in a sample container by urging the flat surface against the separation surface;
• a mounting member having a cylindrical shaft for lowering the flattening member through the blood serum contained in the sample container to thereby mount the flattening member in the sample container such that the flat surface of the flattening member horizontally urges the separation surface of the blood serum separating medium;
• and
• means for securing a space which permits a sampling/dispensing tip capable of sampling and dispensing the blood serum, to be inserted into the sample container, by detaching the cylindrical shaft from the flattening member and taking the cylindrical shaft out of the sample container, after the flattening member is mounted in the sample container by the mounting member,
• wherein the disklike flattening member has a rotation stopper projection on the flat surface to be brought into contact with the separating medium and the disklike flattening member and the cylindrical shaft are engaged with each other such that the cylindrical shaft can be disengaged from the disklike flattening member by rotating the cylindrical shaft about an axis of the sample container.