Interactive Rotating Cup Thromboelastography (TEG) Simulation

Webpage created 8/27/26, last updated 8/27/26, checked for accessibility 8/27/26

Discover how blood clots form and stabilize with our interactive, rotating-cup (cup-and-pin mechanism) thromboelastography (TEG) simulation, such as the Haemonetics TEG 5000. This free medical laboratory tool visualizes the mechanical shear stress between a rotating sample cup and an internal torsion pin, replicating real-time hemostasis and viscoelastic properties. Ideal for medical students and clinicians, our online simulator breaks down critical TEG parameters—including R-time, K-time, alpha angle, and maximum amplitude (MA)—to provide a hands-on understanding of coagulation kinetics and fibrinolysis.

We recommend the Google Chrome web browser to use the rotating cup thromboelastography simulator.

A Rotating Cup TEG Simulation for Interactive Thromboelastography showing the Cup-and-Pin Mechanism. On the left, an 'Analyzer' view depicts a rotating cup containing a red blood clot with a pin following the rotation. On the right, a 'Thromboelastogram' graph plots pin deflection amplitude in mm over 60 minutes, showing a blue clot-strength tracing with labeled parameters: R, K, Ang, MA, and LY30. Numerical values for these parameters are listed in boxes below the graph.