Plasma Separation Apparatus, Method and System

A process for fractionating a blood sample into a plasma component and a corpuscle component and storing the fractionated components;

• said process comprising the following steps:
• providing a blood fractionating apparatus comprising:
• a centrifuge tube defined by at least three chambers separated by constricted sealable passages:
• an open operative upper end chamber, a closed operative lower end chamber and a middle chamber defined between said upper end chamber and said lower end chamber and connected via said sealable passages;
• and a stopper with a flapper valve provided at the opening of said upper end chamber, said flapper valve adapted to control flow of fluid to and from said chambers;
• evacuating air from said tube to maintain a predetermined pressure inside said tube;
• injecting the blood sample into said tube via said stopper;
• filling said tube with the blood sample up to a predetermined level;
• centrifuging said tube at a predetermined speed for a predetermined time period to drive the corpuscle component into said lower end chamber leaving the plasma component in said middle chamber;
• and
• sealing said sealable passages to separate said chambers to obtain a hermetically sealed operative lower chamber containing the corpuscle component and a hermitically sealed middle chamber containing the plasma component.