Device for setting up a dilution measurement site

Method of carrying out thermodilution measurements on the cardiovascular system of a dialysis patient, said method including the steps of

• setting up a dilution measurement site on a hemodialyzer by connecting an arterial connection piece to a hemodialyzer input, connecting said arterial connection piece to an arterial blood vessel access, installing a sensor for measuring the temperature of blood to be dialyzed, connecting a venous connection piece, having an injection channel for injecting a bolus into dialyzed blood that flows through the venous connection piece, to a hemodialyzer output, and connecting said venous connection piece to a venous blood vessel access,
• injecting said bolus into said dialyzed blood through said injection channel, wherein said bolus has a temperature different from said dialyzed blood,
• acquiring at least one variable characterizing said bolus injection, said at least one variable including at least one of temperature of said bolus injected, amount of said bolus injected and duration of said injection of said bolus,
• measuring, using said sensor, the temperature of the blood to be dialyzed over time,
• evaluating a transpulmonary diffusion measurement, in that at least one hemodynamic parameter is determined proceeding from the measured temperature of the blood to be dialyzed over time and the at least one variable characterizing said bolus injection.