Multilayer Flow Modulator for Thoracoabdominal Aortic Aneurysm: Interview With Yoshikatsu Saiki, MD

The Multilayer Flow Modulator (MFM; Cardiatis) is an uncovered, self-expanding stent for treatment of aneurysm, which has high radial force and flexibility. It is made of braided cobalt-alloy wire (Phynox) that is biocompatible and resistant to fatigue and corrosion. The design of the MFM features multiple interconnecting layers of alloy wire, which give the device a porosity of about 65%. The 3-dimensional wire layering of the MFM alters blood flow within the aneurysm sac, changing turbulent flow to laminar flow, which supports the formation of organized, stable thrombus inside the aneurysm sac. At the 2015 VEITH Symposium, Yoshikatsu Saiki, MD, from Tohoku University in Sendai, Japan, described the mechanism of the MFM for thoracoabdominal aortic aneurysm repair and shared some preliminary results. Dr. Saiki has performed 3 cases using the technology, and each patient had successful thrombus formation.