Blood plasma collecting method and tool, and simplified blood testing method and tool

A blood plasma collecting tool to collect separate corpuscles from blood and collect plasma, comprising:

• a tool body within whose substrate a micro space which is at least one long space formed in the horizontal direction, measuring 10 μm to 1 mm in depth in the direction of gravity, a collection channel which communicates with the micro space upward in the direction of gravity and is smaller than the micro space in equivalent diameter, a liquid reservoir which, formed at one lengthwise end of the micro space, communicates with the atmosphere, an air escape which, formed at the other lengthwise end of the micro space, communicates with the atmosphere, and a sucking part which, formed at the tip of the collection channel, communicates with the atmosphere are formed;
• a filling device which fills the inside of the micro space with blood via the liquid reservoir;
• and
• a sucking device connected to the sucking part.

A blood plasma collecting method to separate corpuscles from blood and collect plasma, comprising:

• a filling step of filling with blood a container having a micro space of an extremely thin rectangular shape measuring 50 μm to 2 mm in thickness;
• an inclining step of inclining the container to an inclination angle of 30 to 60° to the vertical direction before or after the filling step;
• a solid/liquid separation step of subjecting blood to solid/liquid separation by gravity into plasma and corpuscles by allowing the blood to stand still for a prescribed length of time in the inclined container;
• and
• a collection step of collecting the plasma having undergone solid/liquid separation by sucking from the container.

A simplified blood testing method for testing blood in a simplified way, comprising:

• a filling step of filling with blood a container having a micro space of an extremely thin rectangular shape measuring 50 μm to 2 mm in thickness;
• an inclining step of inclining the container to an inclination angle of 30 to 60° to the vertical direction before or after the filling step;
• a solid/liquid separation step of subjecting blood in the inclined container to solid/liquid separation by gravity into plasma and corpuscles by allowing the blood to stand still for a prescribed length of time;
• and
• a testing step of bringing a substance to be tested in the plasma having undergone the solid/liquid separation into contact with a testing reagent fastened in advance to the upper part of the upper face of the opposing faces of the micro space in the thickness direction in the inclined state, and thereby conducting a test.

A plasma collecting tool which separates corpuscles from blood and collects plasma, comprising:

• a container having inside a micro space of an extremely thin rectangular shape measuring 50 μm to 2 mm in thickness, and a blood filling port and a plasma collecting port both communicating with the micro space;
• a filling device which fills the micro space of the container with blood via the blood filling port;
• an inclining device which inclines the container to achieve a prescribed angle of inclination relative to the vertical direction;
• and
• a sucking device which collects plasma by sucking the same through the plasma collecting port.

A simplified blood testing tool for simplified testing of blood, comprising:

• a container having inside a micro space of an extremely thin rectangular shape measuring 50 μm to 2 mm in thickness, wherein a testing reagent is fastened in advance to one of the opposite faces of the micro space opposing in the thickness direction, and a blood filling port and an air escape both communicating with the micro space;
• a filling device which fills the micro space of the container with blood via the blood filling port;
• and
• an inclining device which inclines the container to achieve a prescribed angle of inclination relative to the vertical direction and to position upward the one face to which the testing reagent is fastened.