Crit-Line

Crit-Line In-Line Monitor

The Crit-Line In-Line Monitor has been used in hemodialysis patients and other fluid-overloaded patients to measure hematocrit levels and oxygen saturation.

Crit-Line In-Line Monitor optically measures hematocrit and oxygen saturation as blood passes through the dialysis tubing while a patient is undergoing dialysis treatment.

The Crit-Line graphically displays and records the hematocrit, the percent blood volume change (which is derived from the hematocrit), and the oxygen saturation. The hematocrit and oxygen saturation are measured by an optical sensor attached to a sterile disposable blood chamber that is placed in-line between the arterial blood tubing set and the dialyzer. The Crit-Line determines the hematocrit based on both the absorption properties of hemoglobin and the scattering properties of red blood cells passing through the blood chamber.