Figure 1: Models and Inlet waveform velocity.
From: Improvement of hemodynamic performance using novel helical flow vena cava filter design
I: Diagram of five filters with five typical different thread pitches for helical flow inducers (A,B,C,D,E); Model F is a con-shaped filter of the same size without an inducer, and “p” represents the thread pitch of the inducer. The diagram also shows the filter in the vena cava used in the computations. II: Inlet IVC waveform velocity used in the pulsatile flow computations. III: Six filter models used in vitro experiment.
