John Porterfield co-founded BridgeSource Medical with the goal of applying innovative engineering solutions to long-standing medical problems, specifically in the fields of cardio-pulmonary monitoring and therapy, implanted devices, and robotics. As the former CTO, cofounder, and first paid employee of Admittance Technologies, Inc., he was involved in all aspects of clinical design, fundraising, regulatory navigation, intellectual property management, project management, and team building.  

Dr. Porterfield received his BS in Electrical Engineering from Oklahoma State University and his MSE and PhD both in Electrical Engineering from The University of Texas at Austin.

Dr. Anil Kottam previously worked at Admittance Technologies in 2013, after several years of experience designing systems for pre-clinical research in the biomedical industry. He has co-authored multiple papers on the measurement of electrical properties of tissue and has designed and developed instrumentation and algorithms for in vivo heart volume measurements. Dr. Kottam has many years of experience in using conductance catheter technology to determine volumes and pressures in both large and small animals and has a profound understanding of the benefits and flaws of hemodynamic measurement techniques. He is actively involved in implementing more accurate algorithms, experimental techniques and instrumentation to quantify disease states, and allow for new therapies.

Dr. Kottam received his MSE and PhD in biomedical engineering from the University of Texas at Austin.

Austin McElroy has been a research scientist for over 15 years in almost all aspects of Electrical Engineering: circuit design, embedded systems, high speed parallel computing, system architecture, high speed data acquisition, and machine learning. Though his work has mainly focused around biomedical optics and imaging, Austin is expanding his expertise to other bio-signals such as EEG and EKG data acquisition and wireless transmission. Austin’s latest projects have focused on hardware and software for an emergency ventilator to help with COVID-19 (University of Texas, Austin Automated Bridge Breathing Unit, or ABBU), semantic segmentation of medical images using deep neural networks, and Bluetooth based bio-signal “smart devices”.

Austin received a BS and MSE in Electrical Engineering from The University of Texas at Austin.

Dr. John Walmsley joined BridgeSource Medical in 2021. He brings over ten years’ experience in translational academic research in cardiology based on combining patient data with system level computational modelling. His expertise is grounded in cardiac pacemaker and mechanical device therapies, cardiac imaging, and hemodynamic interactions within the cardiovascular system. He has also served as a consultant to a Medtronic plc on novel device development. Dr. Walmsley is actively involved in both design of novel devices and determining optimal application areas for new technologies. A list of research publications can be found here.
Dr. Walmsley received his M.Math in Mathematics and D.Phil. (PhD) in Computational Cardiac Electrophysiology from the University of Oxford, Oxford, UK.