Managing Principal


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The managing principal of BME Systems Inc. is Mark Longerbeam

Mr. Longerbeam holds a Bachelor of Science degree in Biology from Hampden-Sydney College and a Master of Engineering degree from the Department of Biomedical Engineering of the University of Virginia with a concentration in instrumentation and computing in medicine. His graduate research involved statistical modeling for optimization of complex radiotherapy/chemotherapy cancer treatment protocols. Mr. Longerbeam was employed as a programmer and consultant to the American Red Cross Blood Services Laboratories (Bethesda, MD) for the development of a national database for blood center collection statistics. In 1982 he joined the Bard Laboratories of Neurophysiology at the Johns Hopkins School of Medicine where he was responsible for the design and development of analog and microprocessor-based instrumentation for neurophysiological recording and stimulus control. His work there included the programming and electronics design of a real-time visual stimulator providing temporal and spatial disparity for the study of depth perception, a microprocessor-based, multi-channel recording system involving the controlled movement of a matrix of extracellular recording electrodes and a modular, data-compressing buffer specialized for interfacing large numbers of active neural recording channels to minicomputers using a high-speed bus.

Other work has included:

High-speed servomechanism design and control

Creation of graphical programs for the visualization and statistical modeling of postsynaptic responses

Client-server database development for applications in several fields of biology

Implementation of high-performance programmable logic controllers and integration of supervisory control and data acquisition system for varied commercial processes in biotechnology

Design and construction of controlled and semi-automated imaging systems to capture and parameterize of biological systems and processes

Mr. Longerbeam has worked with researchers at Johns Hopkins many other institutions and companies on development projects as varied as an interface for the control and data acquisition of an intracranial pressure implant device, a scleral suction device, cell culture in artificial organ applications, imaging applications for automated quantification of genetic mutations in plants and mechanisms for automating selective protein capture in smart membranes.

Mr. Longerbeam has been President and CEO of BME Systems Inc. since its inception in 1987.