Board of Directors

Kirk Zeller, DBA

Kirk Zeller, DBA is a 27-year veteran of the medical device industry with experience in sales and marketing, market development, and business development. Kirk has led and executed the launch of medical devices for neuro, cardiac, vascular, spine, and pulmonary.

Kirk has spent much of his career launching devices developed by Silicon Valley start-ups. Kirk has returned to his native Nebraska and leveraged his Silicon Valley experience to build the Silicon Prairie Center. He continues to channel his passion to make a difference in healthcare into the start-ups that the Silicon Prairie Center incubates.

Kirk spent much of his adult life living, working, and studying outside of the United States. He has studied in seven countries and traveled to more than 50 countries.

He is very passionate about US-Japan relations and in 2020 he was appointed as a Council Leader of the U.S.-Japan Council. He is also on the board of US-Japan MedTech Frontiers, and on the US Japan MedTech Council as well as the founder of two market access firms.

Kirk has a Doctorate of Business Administration from the International School of Management (Paris) and an MBA from Imperial College London (London) focused on Health Technology Entrepreneurship. His doctoral dissertation and masters thesis were focused on the medical device industry and the topics were respectively, “European Market Entry Strategies for Venture Capital Financed Medical Device Companies” and “Financing and Beyond: The Role of Venture Capital in Silicon Valley Based Medical Device Companies.” Kirk completed his undergraduate studies at Nanzan University (Nagoya), Senshu University (Tokyo), and University of Nebraska-Lincoln (Lincoln, Nebraska – US).


Dr. Greg Gordon, MD, Founder/Chief Medical Officer

Originally from Chicago, Dr. Gordon received his undergraduate training at the University of Illinois Champaign-Urbana, with a B.S degree in biochemistry. He performed his medical school training at the University of Illinois Medical School at Chicago. His post doctorate training, including an internship in internal medicine, residency in diagnostic radiology, and fellowship in vascular and interventional radiology, were all completed at Northwestern University. Dr. Gordon has 20 years experience in both private and academic practices, including five years as division head of interventional radiology at Saint Luke’s Hospital/ UMKC medical school Kansas City, Missouri. More recently, Dr. Gordon served as Division Head of Interventional Radiology at the University of Nebraska Medical Center. Soon after starting Radux Devices, Dr. Gordon refocused his attention to the Omaha Veterans Hospital as Director of Interventional Radiology, and in private practice devoted more energy towards his entrepreneurial passions, focusing and promoting standardized occupational and radiation risk management strategies throughout national health care systems.

In addition to his career as a physician, Dr. Gordon has published multiple peer review articles and is a frequent speaker at educational symposiums and continuing medical education venues. His interests in innovation, intellectual property and practice development have provided Dr. Gordon the opportunity to be primary investigator in multiple clinical medical device trials. Through his partnership with UNeMed, Dr. Gordon founded and developed the first two product concepts of Radux Devices, the StandTall and Steradian Shield (Formerly LockBlock).


Kevin Wiersma, Chief Executive Officer

Kevin Wiersma is a proven executive with over 25 years of experience driving strategic, financial, and operating results. Kevin has provided leadership to companies through various phases from turnaround situations to successful sales and exits. Prior to Radux Devices, Kevin held positions as Chief Financial Officer, Chief Operating Officer, and Chief Administrative Officer at MEDTOX Scientific, Inc. and Chief Financial Officer at Therapak Corporation.

Kevin has a B.A. degree from Dordt College.


Robert Rudell, MBA

Robert Rudell was formerly a director of MEDTOX Scientific, Inc. from April 2002 until the sale of MEDTOX in July 2012(NASDAQ: MTOX). In 1996, Mr. Rudell joined Zurich Scudder Retirement Services as President, and from 1998 to 2002 held the positions of Chief Operating Officer and Chairman of the management committee of Zurich Scudder Investments, a New York City-based asset management firm that is part of Deutsche Asset Management. From 1990 to 1996, he served as President of American Express Institutional Services. Prior to 1990, Mr. Rudell served in a variety of research, marketing and senior management positions with American Express Financial Advisors. Mr. Rudell received his Master of Business Administration degree from the University of Minnesota. Mr. Rudell serves on the boards of the Optimum Mutual Funds, Chairman, The Heartland Group Inc. and American Investors Bank Mortgage.


Andrew Ubel, JD

Andrew Ubel was formerly Deputy General Counsel, Chief Intellectual Property Counsel for Valspar Corporation from January 2000 until the sale of Valspar to Sherwin William in 2018. His responsibilities include managing Valspar’s worldwide patent, trademark, copyright and trade secret legal matters. Prior to joining Valspar, Andy worked for 3M Company, initially as a product development research scientist (where he was named as an inventor on over 25 U.S. patents) and later as a patent attorney. Andy received a B.S. Chem Eng. from MIT; a M.S. Material Science from the University of Minnesota; and a Juris Doc. from William Mitchell College of Law.