Abstract: A vascular lesion model including a blood vessel portion and a lesion portion divided into a plurality of lesion regions having different hardness. The lesion portion including at least one type of lesion region among a first lesion region contacting a part of an inner periphery of the blood vessel portion in a cross section perpendicular to a longitudinal direction and having a shape extending from the part of the inner periphery toward a center of the lesion portion, a second lesion region having a solid shape separated from an outer periphery of the lesion portion, a third lesion region separated from both ends of the lesion portion in the longitudinal direction and occluding the blood vessel portion, and a plurality of fourth lesion regions separated from the inner periphery of the blood vessel portion in a cross section perpendicular to the longitudinal direction, and arranged separately from one another.

Abstract: A blood vessel model having a simulated blood vessel body formed of an elastic material. The simulated blood vessel body has a communication hole that penetrates the vessel wall of the simulated blood vessel body. The communication hole opens when the periphery of the communication hole undergoes elastic deformation in response to the intravascular pressure of the simulated blood vessel body.

Abstract: A vascular model that includes a flow path forming portion, and a diffusion portion formed with a porous body fluidly connected to the fluid flow path.