摘要
This study investigates the cutting and removal of blood clots inside blood vessels using a high-speed rotary miniature cutting tool, which is inside and near the tip of a catheter with vacuum suction to deform and draw the soft clot inside the catheter tip for cutting and chip removal. The cutting forces at rotational speeds of 60,000, 90,000, and 120,000 rpm were measured to be 0.74, 0.59, and 0.36 N, respectively. A smooth particle Galerkin model was established, and the predicted cutting forces matched the experiment measurements with errors from 3% to 20%.