In at least one embodiment of the present invention, a method for making embolization particles for occluding fluid flow through a body vessel is provided. The method comprises positioning an elongated body of biocompatible material relative to a cutting device. The elongated body is defined by extrusion of a body cross-section along a longitudinal axis. The elongated body is cut with a cutting device at a plurality of locations along the longitudinal axis to form the embolization particles such that each of the embolization particles has a particle cross-section that corresponds to the body cross-section.