Extracorporeal circulation management device and extracorporeal circulation device having it

An extracorporeal circulation system, comprising:

• an oxygenator unit;
• a first tube part for providing blood from an output of the oxygenator unit to a target person;
• a second tube part for providing blood from the target person to an input of the oxygenator unit;
• first oxygenation sensors measuring first oxygenation-related parameters values in the first tube part;
• second oxygenation sensors measuring second oxygenation-related parameters values in the second tube part;
• and
• an extracorporeal circulation management device comprising first controller means programmed for determining in-body passing time information defining a time period for blood supplied from the output of the oxygenator unit to the target person to be discharged from the target person according to a bloodstream volume of the target person and a flow rate of the supplied blood, and second controller means programmed for selecting first oxygenation-related parameter values separated by the determined in-body passing time information and for selecting second oxygenation-related parameter values separated by the determined in-body passing time information as comparison targets to evaluate oxygenation consumption of the target person, wherein the in-body passing time information is corrected according to locations on the target person where the blood is introduced from the oxygenator unit into the target person and where the blood is discharged from the target person.

A method of managing extracorporeal circulation in a target patient using an oxygenation unit, the method comprising the steps of:

• determining a plurality of first oxygenation-related parameter values of blood supplied from an output of the oxygenator unit that carries out gas exchange of blood to the target person with time-course information;
• determining a plurality of second oxygenation-related parameter values of blood introduced from the target person into an input of the oxygenator unit with time-course information;
• determining in-body passing time information defining a time period for blood supplied from the output of the oxygenator unit to the target person to be discharged from the target person according to a bloodstream volume of the target person and a flow rate of the supplied blood;
• selecting first oxygenation-related parameter values separated by the determined in-body passing time information and for selecting second oxygenation-related parameter values separated by the determined in-body passing time information as comparison targets to evaluate oxygenation consumption of the target person;
• and
• correcting the in-body passing time information according to locations on the target person where the blood is introduced from the oxygenator unit into the target person and where the blood is discharged from the target person.