Designed From Experience
Born out of firsthand clinical experience with the limitations of conventional snare retrieval, the company was built by interventional cardiologists and cardiovascular surgeons who understood the problem from both sides of the table. The result is the ŌNŌ Retrieval System — an FDA 510(k)-cleared catheter-based device that gives physicians a reliable, percutaneous option when a cardiac implant migrates, embolizes, or fails to seat correctly.
Meet the Experts
Matthew J. Gillespie, M.D.
Co-Founder
Dr. Matthew J. Gillespie is a renowned interventional cardiologist, innovator, and co-founder of ŌNŌCOR Vascular. Throughout his career, he has been dedicated to advancing minimally invasive cardiovascular therapies and developing technologies that improve procedural safety and patient outcomes.
Mark Piper
Co-Founder, Chief Executive Officer
Mark Piper is the Co-Founder and Chief Executive Officer of ŌNŌCOR Vascular, where he leads the company’s strategic direction, commercialization efforts, and operational growth. He brings extensive experience in the medical device industry, with a focus on bringing innovative cardiovascular technologies from development to market.
Robert C. Gorman, M.D.
Co-Founder
Dr. Robert C. Gorman is a cardiac surgeon, researcher, and co-founder of ŌNŌCOR Vascular. His career has focused on advancing cardiovascular surgery through innovative device development, translational research, and the application of engineering to solve complex clinical problems.
Joseph H. Gorman III, M.D.
Co-Founder
Dr. Joseph H. Gorman III is a cardiac surgeon, inventor, and co-founder of ŌNŌCOR Vascular. His clinical and research career has centered on developing innovative technologies that improve the treatment of structural heart disease and support the continued evolution of minimally invasive cardiovascular therapies.