Pioneering Precision inCardiac Monitoring
Saving lives through purposeful innovation, accuracy-led design, and clinical excellence.
Since 2017 • Carlsbad, California
Innovation Born from
Clinical Need
Where emergency medicine expertise meets cardiac monitoring innovation
At C-Booth Innovations, innovation meets expertise. Our roots lie in San Diego, where a team of dedicated Emergency Physicians embarked on a mission to transform cardiac care.
We are not just a medical device company; we are innovators and caregivers committed to one crucial goal: to revolutionize the diagnostic quality and consistency of ECG performance. This commitment drives us towards one outcome — ensuring the right intervention is delivered at the right time, for every patient.
Our breakthrough: a state-of-the-art wearable ECG portfolio line designed for continuous 12-lead monitoring, with the capability to expand up to 18-lead for improved STEMI detection. Our technology is crafted to seamlessly integrate across the continuum of care, from prehospital to acute care settings.
Our Mission
Empowering Clinicians, Improving Outcomes
With EXG™, clinicians are empowered with enhanced speed, accurate electrode placement, and efficiency in cardiac diagnostics, paving the way for improved patient outcomes and streamlined care processes.
The Principles That
Guide Our Innovation
Every cardiac monitoring solution we develop is rooted in these core values shaping how we serve emergency medicine and critical care
Experience Our Values in Action
See how these principles translate into superior cardiac monitoring technology that emergency physicians trust every day.
Explore EXG™ PlatformYour Premier
Cardiac Diagnostic Experience
Emergency physicians, engineers, and industry leaders dedicated to revolutionizing cardiac monitoring

Christian McClung, MD
Co-Founder & CMO
Practicing board-certified emergency physician at Palomar Health and Assistant Professor of Molecular Microbiology and Immunology at USC's Keck School of Medicine. Graduate from Cambridge University with a degree in Epidemiology, MPhil. Biostatistical Editor and Reviewer for several peer-reviewed journals. Areas of expertise include non-invasive hemodynamic monitoring, cardiac arrest physiology, and inter-disciplinary simulations.
Expertise

Sean Ronan
Co-Founder & Chairman
R&D Leader • Operations Leader • Quality Leader
Sean is a serial entrepreneur and successful business developer who has founded nearly a dozen companies across a range of industries, including software, personal health, hospitality, wave pool development, craft brewing, and other beverage ventures. In his founding role at CBi, he has returned to the medical device field for the second time. Sean is passionate about building companies and is especially motivated by the opportunity to help create products that can genuinely improve and even potentially save people's lives.
Expertise

Stephen Dunphy, MD
Co-Founder & CTO
Attended medical school at the University of California-Davis and completed his board-certified training in Emergency Medicine at LAC+USC Medical Center. Now practices Emergency Medicine in San Diego. Studied economics at the University of Virginia where he competed at the 1992 Olympic Trials in the decathlon and was a two-time decathlete All-American and 3-time ACC champion. Has served in various roles including assistant medical director, trauma journal review editor, and several hospital-based committees.
Expertise

Jeff Colton
Board Advisor
President of The Walters Group - responsible for planning, operations, and administration across a wide range of holdings and activities including residential/commercial real estate, golf course ownership, auto dealerships, philanthropy, and a mix of public and private investments. Previous back-to-back stints as CEO of two different consumer products companies, leading them each through restructuring, revitalization, and successful exits on behalf of their private equity owners. Began career at Callaway Golf, working initially as a Research Analyst within the R&D & Testing function and finishing as SVP Global Brand & Product 18 years later. Holds a Bachelor of Science degree in Physics from Harvey Mudd College and has completed executive education programs at both the Stanford Graduate School of Business and The Kellogg School of Management.
Expertise

Jason Topolosky
CEO / Board Advisor
Over 24 years of corporate development and strategy experience, delivering above-segment revenue and profit growth in highly competitive business markets through global market entry and expansion and differentiated product and services. Brings experience in market intelligence, strategic planning, portfolio analysis, buy- and sell-side M&A, and operational integration. Formerly Global Vice President of Strategy & Portfolio Management for Olympus Corporation, a $7B leading endoscopic and therapeutic solutions provider. Prior to Olympus, served as Vice President of Business Development & Strategy at Stryker Corporation, where he led global M&A and strategic planning for Stryker's largest implant businesses — Trauma, Foot & Ankle, and Upper Extremity — representing a combined revenue of ~$4B. Sits on the Boards of Happe Spine and VisageX.
Expertise

Andy Palmer
Board Advisor
Andy brings over 25 years of experience in technology leadership. He is currently the Director of Technology for AWS Strategic Accounts, where he leads a team of technologists helping the world's most advanced organizations stay on the frontier of AI. He previously served as Vice President of Engineering at Intuit, leading the technology stack powering TurboTax Live and QuickBooks Live, and led Intuit's 100% migration to AWS as Head of Cloud Platform Engineering and Architecture. He has also held leadership roles at eBay and Shutterfly.
Expertise

Oxana Pantchenko, PhD
VP Research and Development/Engineering
Holds a Ph.D. degree in Electrical Engineering with emphasis on medical devices. Extensive experience in research and development, verification and validation, and manufacturing of Class I, II, and III medical devices. Has working experience at the US FDA, Center for Devices and Radiological Health where she conducted regulatory reviews and contributed to regulatory science. Led and managed teams through clinical trials and commercialization.
Expertise

Richard Kimes
VP of Operations
Over 30 years of consulting and industry experience in the life sciences industry. Extensive experience leading manufacturing operations, development, engineering and supply chain teams to substantially improve profitability, quality and customer service. Previously SVP of Operations at Acutus Medical, SVP of Operations at Volcano Corporation (Philips), and Director of Operations at Guidant Corporation (Abbott). Graduated from University of Utah with a BS in Mechanical Engineering.
Expertise

Martin Sellers
VP of Quality
Quality engineer with over 30 years of experience in Class II and III medical devices. Has had experience in multiple facets of the design process and control including systems engineering, manufacturing, quality, and software DevOps. Integrally involved in the international medical device product launch across cardiovascular space.
Expertise

Mark Deaver, MD, MBA
Senior Medical Advisor, Clinical and Market Strategy
Attended medical and business school at the University of California-Irvine, where he completed a joint MD / MBA program. Completed his Emergency Medicine residency and Ultrasound Fellowship at Harbor-UCLA. Now practices Emergency Medicine in San Diego and a critical access hospital in Northern California. Studied psychology at the University of Redlands and played quarterback on the football team. Currently serves on multiple hospital-based committees focusing on quality and patient safety.
Expertise

Kellen Culver
Director of Marketing
Founder of Medi-Edge Marketing. Background in digital marketing and healthcare growth, Kellen has led initiatives spanning brand positioning, provider adoption, and patient acquisition, particularly for private practice healthcare providers and emerging medical technologies. His approach combines data-driven strategy with a deep understanding of how providers and users make purchasing and clinical decisions. Kellen is known for translating complex medical innovations into clear, compelling messaging that drives adoption across EMS systems, clinics, and healthcare organizations.
Expertise

AJ Naja
West Coast Sales Manager
AJ graduated from Occidental College in Los Angeles, where he studied pre-med and played NCAA baseball throughout his time at the school. During his youth, he also gained experience in the hospitality industry. Since graduating, AJ has been with EXG for over two years, progressing from an inside sales role to his current position managing accounts, onboarding new customers, and leading conference initiatives.
Expertise

2023 ACEP Award Winners
Recognized by the American College of Emergency Physicians for innovation in cardiac care
Based in Carlsbad, California
Our team combines decades of emergency medicine experience with cutting-edge biomedical engineering expertise and proven medical device manufacturing leadership to deliver cardiac monitoring solutions trusted by healthcare professionals nationwide.
FDA Registered & ISO 13485 Certified
5835 Avenida Encinas Suite 118, Carlsbad CA, 92008
Partner with Cardiac Monitoring Experts
Discover how our emergency physician-founded company is revolutionizing ECG diagnostics
