||cuvette with blood sample
||fibrin strands & platelet aggregates
||light beam from LED
||heated cuvette holder
||detector (electr. camera)
||data processing unit
ROTEMÂ® is derived from "rotational thromboelastometry",
a powerful technique for the assessment of blood
- Blood is added into a disposable cuvette
(measuring cell) in a heated cuvette holder
- Disposable pin (sensor) is fixed on the tip of a
rotating shaft (axis).
- The rotating shaft is stabilized by a high precision
ball bearing system
- Shaft rotates back and forth 4.75 degrees
- Shaft is connected to a spring to measure elasticity
- Exact position of the shaft is detected by reflection
of light on small mirror on the shaft.
- Data obtained from the reflected light is then
computer processed into a graphical output.