We are dedicated to the treatment of Venous Sinus Stenosis and are the first company to conceive, design, and market a stent designed for stenting venous sinus in Idiopathic Intracranial Hypertension (IIH).

Y. Pierre Gobin, MD

Founder, CEO, Director of Medical Affairs

Y. Pierre Gobin, MD is an Interventional Neuroradiologist with over 30 years of experience. He is a co-inventor of the Merci retriever, Cooling catheter, and IA chemotherapy for retinoblastoma. Pierre is also Co-founder for Concentric Medical and Lazarus Effect.

Martin Dieck


Over the past 30 years, Martin has founded and managed a number of successful companies that develop devices to treat various disorders of the brain. He has worked as a venture investor and is currently a founding director of Neurotechnology investors.  Martin is still founding companies and serves on a number of boards where he can continue to help drive innovation in brain health.

Gary Castro

President, CFO

Gary is a 20-year veteran of the medical device industry. He specializes in top-to-bottom corporate administration—finance, accounting, IT, and HR. He has held senior management positions of VP Finance, CFO, and CEO at start-ups, early revenue stage, and mature companies (ranging from 14 to 300+ employees).

Jeff Callister

VP of Engineering

Jeff has built several successful medical device companies from the ground floor and holds over 50 + Domestic and international patents along with multiple PMA approvals and 510K clearances.

Brian Martin

Board Member

Brian is a seasoned engineer, inventor, and entrepreneur, with over 30 years of experience in the medical device space.   Brian has focused on designing disruptive first-in-class technologies and has brought many new devices to both the cardiac and neurovascular fields.   Brian has co-founded several neurointerventional and cardiac companies, and is currently an inventor on over 100 issued patents or published patent applications.