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Aliso Viejo, CA. - February 22, 2022 - MicroVention, Inc., a subsidiary of Terumo and a global neurovascular company, announced the first U.S. clinical case of its next generation Flow Diverter, the FRED X device, at Thomas Jefferson University Hospital located in Philadelphia. MicroVention received FDA PMA approval for the FRED X device in September of last year. The FRED X Flow Diverter features MicroVention X Technology, a proprietary nano-polymer surface modification designed to reduce material thrombogenicity, or tendency for clot formation on the device surface.

Building on the original FRED device, which received FDA PMA approval in 2019, the FRED X device uses a self-expanding braided nitinol mesh to help re-direct blood flow and promote aneurysm occlusion. With the addition of X Technology, FRED X is designed to reduce thrombogenicity of the device material and enhance blood vessel healing. FRED X offers both the smallest and largest flow diversion systems available in the U.S., providing physicians with the broadest range of options for treating their patients.

"FRED X represents an important advancement in flow diversion therapy. The X Technology surface treatment applied to the FRED X Device is designed to reduce material thrombogenicity and has further increased the deliverability of the FRED X," said Dr. Stavropoula Tjoumakaris, Director, Endovascular Surgery and Cerebrovascular Neurosurgery Fellowship at Thomas Jefferson University Hospital, and principal investigator of the FRED X [post approval] study. "We are excited to be the first center in the U.S. to have clinical experience using the FRED X device and look forward to a clinical study on the benefits of X Technology."

An estimated 6.5 million people [or 1 in 50 people] in the U.S. have an unruptured brain aneurysm, approximately 300,000 of which will rupture, potentially leading to disability or death. Since it received the CE Mark in 2013, the FRED device has been used to treat tens of thousands of patients and its safety and effectiveness have been shown in dozens of clinical publications.

"At MicroVention, we continue to enhance our product portfolio to make meaningful improvements in patient care," said Carsten Schroeder, President and CEO of MicroVention. "Surface treatment technologies, such as the FRED X device, represent the next frontier in neurovascular therapy, and MicroVention is proud to be able to offer the first of several devices incorporating our X Technology to physicians and patients in the U.S."

For more information regarding the FRED X Flow Diversion Device, please visit MicroVention's website at


About the FRED X Device

The FRED X device is indicated for use in the internal carotid artery from the petrous segment to the terminus for the endovascular treatment of adult patients (22 years of age or older) with wide-necked (neck width ≥ 4 mm or dome-to-neck ratio < 2) saccular or fusiform intracranial aneurysms arising from a parent vessel with a diameter ≥ 2.0 mm and ≤ 5.0 mm.

About MicroVention, Inc.

Founded in 1997, MicroVention develops and markets medical devices that enable or significantly improve treatment of cerebrovascular diseases. In 2006, Terumo Corporation, a major worldwide medical device company headquartered in Tokyo, Japan, acquired MicroVention into their family of Companies. Terumo's acquisition of MicroVention allowed both Companies to leverage their unique, proprietary technologies toward an increased focus on treating cerebrovascular diseases. Headquartered in California, MicroVention products are sold in more than 75 nations through a direct sales organization alongside strategic distribution partnerships.

About Terumo

Terumo (TSE: 4543) is a global leader in medical technology and has been committed to “Contributing to Society through Healthcare” for 100 years. Based in Tokyo and operating globally, Terumo employs more than 30,000 associates worldwide to provide innovative medical solutions in more than 160 countries and regions. The company started as a Japanese thermometer manufacturer, and has been supporting healthcare ever since. Now, its extensive business portfolio ranges from vascular intervention and cardio-surgical solutions, blood transfusion and cell therapy technology, to medical products essential for daily clinical practice such as transfusion systems, diabetes care, and peritoneal dialysis treatments. Terumo will further strive to be of value to patients, medical professionals, and society at large.

Among the information that Terumo discloses, the forward-looking statements including financial projections are based upon our assumptions using information available to us at the time and are not intended to be guarantees of future events or performance. Accordingly, it should be noted that actual results may differ from those forecasts or projections due to various factors. Factors affecting to actual results include, but are not limited to, changes in economic conditions surrounding Terumo, fluctuations of foreign exchange rates, and state of competition.


Information about products (including products currently in development) included in this material is not intended to constitute an advertisement or medical advice.