MCA Bifurcation Model

Create a watertight, smooth, solid 3D vascular bifurcation model representing a human Middle Cerebral Artery (MCA) for computational fluid dynamics (CFD) analysis. The parent vessel is a smooth cylinder with an outer diameter of 3.0 mm and a length of 15.0 mm. At the distal end, the parent vessel splits into two symmetric daughter branches at a total bifurcation angle of 45 degrees (22.5 degrees off-axis per branch). Each daughter branch has a uniform diameter of 2.1 mm and a length of 10.0 mm. The bifurcation junction apex must feature a smooth, rounded fillet radius of 0.8 mm to eliminate sharp inner corners. Ensure all wall surfaces are continuous, non-self-intersecting, manifold, and completely hollowed with a uniform vessel wall thickness of 0.3 mm. Both daughter outlets and the parent inlet must be flat, planar face openings perpendicular to their flow axes. Output as a clean, high-precision STEP (.step) solid model file.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.