Blood sampling tool/device comprising blood sampler and blood container

A blood sampling device, comprising;

• a pipette tip-shaped blood sampler having upper and lower openings at an upper part and a lower part thereof, respectively, the blood sampler having an interior space that is configured and sized to aspirate and retain blood, wherein the lower opening and the upper opening communicate with one another in the interior space of the blood sampler, wherein a lower portion of the interior space defines a blood retaining portion having a first hydrophilically-treated inner wall, wherein the lower portion has a tapered shape extending from a tip of the lower opening toward the upper opening, and wherein, when the lower opening is brought into contact with blood, the blood is caused by the blood sampler to be aspirated into the interior space by a capillary action;
• a blood container configured and structured to accommodate the blood collected by the blood sampler, wherein the blood container includes a space therein into which the blood sampler is insertable, and has a second hydrophilically-treated inner wall and a bottom;
• a sealing lid configured to seal the blood container;
• and
• a protrusion provided at the bottom of the blood container, wherein, when the blood retained in the blood retaining portion is brought into contact with the protrusion, the blood sampling device is configured to discharge the blood into the blood container.

A blood sampling device comprising;

• a pipette tip-shaped blood sampler having upper and lower openings at an upper part and a lower part thereof, respectively, the blood sampler having an interior space that is configured and sized to aspirate and retain blood, wherein the lower opening and the upper opening communicate with one another in the interior space of the blood sampler, wherein a lower portion of the interior space defines a blood retaining portion having a first hydrophilically-treated inner wall, wherein the lower portion has a tapered shape extending from a tip of the lower opening toward the upper opening, and wherein, when the lower opening is brought into contact with blood, the blood is caused by the blood sampler to be aspirated into the interior space by a capillary action;
• a blood container configured and structured to accommodate the blood collected by the blood sampler, wherein the blood container includes a space therein into which the blood sampler is insertable, and has a second hydrophilically-treated inner wall and a bottom;
• a sealing lid configured to seal the blood container, wherein, when the lower opening of the blood sampler is provided in a state such that the blood is retained in the blood retaining portion is brought into contact with the inner wall or the bottom of the blood container, a blood aspirating force (X) based on the capillary action of the blood sampler and a blood discharging force (Y) based on a gravity of the blood and a hydrophilic treatment of the blood container satisfy the following relation:
• X<Y:
• and
• a protrusion provided at the bottom of the blood container, wherein, when the blood retained in the blood retaining portion is brought into contact with the protrusion, the blood sampling device is configured to discharge the blood into the blood container