We are a team of passionate engineers, scientists, clinicians, and entrepreneurs dedicated to developing innovative medical technology that addresses today’s most pressing clinical needs.


Matthew Nojoomi, MSE

CEO & Co-Founder

Matthew is a biomedical engineer and entrepreneur with more than six years of medical device innovation and design experience. He holds a Master’s degree in Bioengineering Innovation and Design from Johns Hopkins University, where he learned the methodologies and skills necessary to translate unmet clinical needs into commercial products. More recently, Matthew has worked as a product development engineer at Abbott’s Cardiac Rhythm Management division designing core cardiac leads for pacemakers and ICD’s. Matthew has previous experience with medical device startups, particularly with driving early-stage growth and technology development. At Ictero, Matthew leverages his experience to help bridge the gap between the engineering, business, and clinical worlds. In addition, he draws upon his engineering experience to design and manufacturer prototypes internally, helping drive significant value while minimizing resource utilization. He recently graduated from the TMC Biodesign fellowship program and is a founding member of Ictero.


David Waters, MD

COO & Co-Founder

David worked with the tech transfer office as a biomedical engineering undergrad at UT-Austin to help physician inventors license and commercialize their medical technologies. He continued his education at McGovern Medical School at UTHealth-Houston where he experienced firsthand the challenge of managing high-risk patients with gallstone disease. Following medical school, he joined the Fannin Innovation Studio as an Entrepreneurship Fellow. There he led the implementation of a partnership with Texas Children’s Hospital to perform early stage development and commercialization of medical devices designed specifically for children. He gained experience in early stage R&D, market research, non-dilutive funding, intellectual property analysis, regulatory path, and reimbursement strategy working on a portfolio of pediatric devices. David joined Ictero to leverage his experience with medical device development and non-dilutive funding to help bring the CholeSafe System to market.


Kovi Bessoff, MD, PhD

Clinical Research Lead & Co-Founder

Kovi is a general surgery resident at Stanford University where he has cared for numerous patients with gallstone disease.  This affords him an intimate knowledge of nearly every aspect of the care pathway including pain points in pre- and postoperative care, complicating factors, and a deep understanding of biliary anatomy.  He has also cared for a number of patients who have had significant complications associated with their cholecystectomies, and is passionate about preventing these complications in the future. In addition to his surgical expertise, Kovi brings years of experience in the lab with various cell culture, microscopy, and other molecular science techniques, which have been useful for full characterization and testing of early prototypes. He recently graduated from the TMC Biodesign fellowship program and is a founding member of Ictero.



Raymond Kirk, MD, FACR


Ray completed his Interventional Radiology fellowship at the University of TX. MD Anderson Cancer Center followed by a Neuroradiology fellowship at Baylor College of Medicine. He served on the IR staff of Hermann Hospital and University of TX Medical School before practicing as an Interventional Radiologist within the Christus hospitals in the greater Houston community for 20 years. He actively developed minimally invasive IR suites at both St. Joseph and St. John hospitals offering the full spectrum of subspecialty vascular and interventional services in both tertiary care and community settings. At Ictero, Ray shares a common understanding of the clinical need surrounding high risk patients with gallstone disease and works with the team to develop a refined product that can easily integrate into current care pathways.