Blood-viscosity measurement method

A blood-viscosity measurement method, the method comprising:

• providing a blood-viscosity measurement blood collection tube, wherein the blood-viscosity measurement blood collection tube comprises (i) a bottomed tube, the bottomed tube comprising an opening at one end in a length direction, a bottom at the other end in the length direction, and an inner space, the inner space being in a negative pressure state, and (ii) a sealing plug, the sealing plug comprising a sealing part being fitted in the opening of the bottomed tube in a hermetically sealed state, a cap part, and a thin connecting part connecting the cap part and the sealing part;
• the sealing part comprising a vertically penetrated insertion hole, the sealing part being fitted in the opening of the bottomed tube in a hermetically sealed state;
• wherein a guide tube communicated with the vertically penetrated insertion hole is secured to the sealing part in a downwardly extended manner;
• and wherein the guide tube comprises one or a plurality of apertures or slits formed on a side surface of the guide tube;
• collecting blood into the inner space of the bottomed tube by using the negative pressure state of the inner space;
• applying an external force to the cap part of the sealing plug of the blood collection tube to break the connecting part;
• removing the cap part to expose the insertion hole at an upper surface of the sealing part;
• inserting a viscosity-measurement falling body into the insertion hole and allowing it to fall through the blood in the inner space of the bottomed tube;
• and
• measuring a blood viscosity by measuring a fall terminal velocity or fall acceleration of the viscosity-measurement falling body falling through the blood in the inner space of the bottomed tube.

A blood-viscosity measurement method, the method comprising:

• providing a blood-viscosity measurement blood collection tube, wherein the blood-viscosity measurement blood collection tube comprises (i) a bottomed tube, the bottomed tube comprising an opening at one end in a length direction, a bottom at the other end in the length direction, and an inner space, the inner space being in a negative pressure state, and (ii) a sealing plug, the sealing plug comprising a sealing part being fitted in the opening of the bottomed tube in a hermetically sealed state, a cap part, and a thin connecting part connecting the cap part and the sealing part;
• the sealing part comprising a vertically penetrated insertion hole comprising a length, the sealing part being fitted in the opening of the bottomed tube in a hermetically sealed state;
• and a guide tube secured to the sealing part in a downwardly extended manner, the guide tube being communicated with the vertically penetrated insertion hole along an entirety of the length of the vertically penetrated insertion hole;
• collecting blood into the inner space of the bottomed tube by using the negative pressure state of the inner space;
• applying an external force to the cap part of the sealing plug of the blood collection tube to break the connecting part;
• removing the cap part to expose the insertion hole at an upper surface of the sealing part;
• inserting a viscosity-measurement falling body into the insertion hole and allowing it to fall through the blood in the inner space of the bottomed tube;
• and
• measuring a blood viscosity by measuring a fall terminal velocity or fall acceleration of the viscosity-measurement falling body falling through the blood in the inner space of the bottomed tube.