A transcendent step beyond the permanent metal stent: a bioresorbable vascular scaffold props a diseased coronary artery open just long enough for the vessel to heal, then dissolves away entirely, leaving nothing behind. This simulator models the two competing timelines that decide the outcome — first-order hydrolytic decay of the polymer struts' radial strength against saturating growth of the native vessel's own healed support — and renders both in a real 3D artery: watch the scaffold lattice visibly thin and fade as it resorbs, the vessel wall tint from raw to healed, and blood cells flow through a lumen whose patency is computed live from the combined-support formula, not animated by hand. Tune the polymer's degradation half-life and the patient's healing rate to see when the "scaffold discontinuity window" — the real clinical risk period after early bioresorbable-scaffold trials — opens and closes.