About Us

/About Us
About Us2024-03-14T14:14:32+00:00

Hemedex, Inc., was founded in 2000 to commercialize a proprietary platform technology conceived at the Massachusetts Institute of Technology to quantify tissue perfusion (i.e., blood flow at the capillary level).

This technology addresses the need for real-time prognostic data in complex medical and surgical procedures.

These complex procedures often involve compromised vasculature, delayed ischemia, or other serious pathophysiology, resulting in high rates of morbidity, delayed recuperation, poor patient outcome, and higher overall costs.

Hemedex’s patented technology can provide an early warning of impending tissue ischemia, help target appropriate therapies, and rapidly assess the effect of interventions on cerebral blood flow (CBF), thus providing clinicians with a powerful tool to enhance patient care.

All Hemedex products are FDA cleared. The Cranial Bolt Kit product line and the QFlow 500™ Perfusion Probe are CE Marked.

H. Frederick Bowman
H. Frederick BowmanPh.D., President, CEO & Chairman

Dr. Bowman is the inventor of the Company’s technology and the founder of Hemedex. He is also the founder of Thermal Technologies, Inc. and serves as Chairman and Chief Technology Officer. He concurrently served as the Senior Academic Administrator of the Harvard-MIT Division of Health Sciences and Technology for 40 years through September 2010. He served as a member of the Mechanical and Biomedical Engineering faculties at Northeastern University for 25 years, as a lecturer on Radiation Oncology at Harvard Medical School, and as Program Director for Biomedical Engineering at the National Science Foundation. His principal research interests include microprocessor-based instrumentation for the quantification of tissue perfusion, thermal properties, tissue water content, cardiac output, bioheat and mass transfer based problems in clinical research, thermal physics of clinical hyperthermia, and thermometry. Dr. Bowman has a B.S. degree in Mechanical Engineering from Pennsylvania State University and M.S. and Ph.D. degrees from MIT in Nuclear Engineering. He is the author of some 120 publications and abstracts, holds 20 patents and is a Fellow of the American Institute of Medical and Biological Engineers.

Charles J. Welch
Charles J. WelchPrincipal Electrical Engineer, MSEE

Mr. Welch joined the parent company of Hemedex, Inc. – Thermal Technologies Incorporated (TTI) – in 1991 and has served as a consultant to Hemedex since its inception in 2000. Along with Dr. Bowman, he is one of the principal developers of the Bowman Perfusion Monitoring (BPM) system and is currently responsible for Hardware Design and Software Testing. He is a significant contributor to the Customer Service and Clinical Support roles of the company. Since the inception of the Thermal Diffusion-based technology, he has been instrumental in the research and development of the QFlow500™ Perfusion Probe, the BPM, and the calibration and manufacturing processes. Mr. Welch is a major contributor to all Hemedex technology, including those in development for measuring Tissue Water Content. He has extensive experience in the development of medical and technical instrumentation having worked at Instrumentation Laboratories, Inc.; MIT’s Biomedical Engineering Center and the MIT Hyperthermia Center.

Timothé F. Martin
Timothé F. MartinDirector: QA/RA & Operations

Timothé Martin, Director of Operations & QA/RA, joined Hemedex in 2022. He effectively oversees manufacturing processes, manages facility and inventory records, and supports the management team in marketing and educating stakeholders/customers on the scientific aspects of Hemedex projects and products. With a track record of successfully developing and executing regulatory strategies for product and company registrations, Tim has demonstrated leadership in overseeing FDA, EU, and ISO surveillance audits without any findings. Prior to his current position, he served as QA/RA Manager. Before joining the Hemedex team, he worked Quality and Operations in the food industry and in medical device refurbishing. Timothé graduated cum laude from the University of Massachusetts – Lowell with a Bachelor of Science Degree in Biology, specializing in Biotechnology, and a minor in Business Administration.

Daniel J. DeRienzo
Daniel J. DeRienzoQuality & Operations Engineer

Daniel DeRienzo joined Hemedex in 2022. As a Quality and Operations Engineer, he works to maximize quality and efficiency of manufacturing processes, promote quality system improvements, manage customer relations, and drive sales and marketing efforts to reach new audiences. Before joining Hemedex, Daniel worked in business management at Enterprise Holdings where he was responsible for overseeing and optimizing operations as well as implementing business strategy that aligned with the organization’s overall goals. Daniel attended the University of New Hampshire where he earned his Bachelor’s degree in Business Communication.

Tracey M. Berlin
Tracey M. Berlin MSN-Ed, RN, CNRN, CCRN; Consultant, Clinical Applications Specialist

Mrs. Berlin has 29 years of experience in neuroscience nursing, serving in roles of staff nurse, management, education, and research. Prior to joining the Hemedex team, she was employed as the Unit Educator and Neuroscience Technology Specialist in a 24 bed Neuro ICU in a University-based Level I Trauma Center/Primary Stroke Center. Ms. Berlin currently works as a Neuroscience Nursing Education Consultant and Clinical Applications Specialist for several companies focusing on advanced neuromonitoring technologies. She is considered a nursing expert on multimodal monitoring in neurocritical care, teaching on topics of brain tissue oxygen monitoring, cerebral blood flow monitoring, cerebral microdialysis, automated pupil assessment, data integration systems, and others. She has authored textbook chapters and publications on these and other neuro related topics. Her clinical experience and unique skill set enable her to assist hospitals with expansion of neurocritical care programs and integration of neuromonitoring technologies.

Rick Tardiff
Rick TardiffBoard of Directors

Rick Tardiff served as Gray, Gray & Gray’s International Business Partner, leading our efforts to collaborate and coordinate with chartered accountants and CPA firms in Latin America. This offered our clients who do business outside the United States global reach, and provided individuals and foreign-owned companies with representation in the U.S.

Rick served the audit and tax needs of a wide range of businesses and their owners for over 30 years.  He also provided consulting services to these entities and shared his first-hand knowledge of the accounting issues related to various industries. Throughout his career, Rick was very proficient in directing large engagements and in delivering the final product in a quality manner, particularly on engagements with strict reporting deadlines.

Rick’s practice also focused on accounting for non-profit organizations. His non-profit clients encompassed various activities including community services, study abroad programs and environmental research, with both private and governmental funding sources.

Rick is a graduate of New Mexico State University with a degree in accounting. He is a member of the American Institute of Certified Public Accountants and the Massachusetts Society of Certified Public Accountants.

Mack Lund
Mack LundBoard of Directors

Mack has held various technology and business leadership roles in the electronics industry. At Analog Devices (ADI), he was  Product and Technology Director for the Interface and Isolation Technology Group and held other roles leading technology strategy, system engineering, engineering management, and product marketing. Prior to ADI, Mack worked at the Westinghouse Science and Technology Center in Pittsburgh, PA, where he developed high power electronics and control systems for utility applications. Mack holds MBA and MSEE degrees from the Massachusetts Institute of Technology, a MEng in Electric Power Engineering from Rensselaer Polytechnic Institute, and a BSEE from Brigham Young University. Mack is a Senior Member of the IEEE, past chair of the Atlanta chapter of the IEEE Power Electronics Society, and a registered professional engineer. 

James L. Neal, J.D., Chief Legal Counsel

Mr. Neal is an experienced attorney in corporate, commercial and patent law. He has 15 years of experience serving as Chief Legal Counsel for a major technology company and 8 years of experience in private practice. He has also served as Patent Counsel for several US companies. Mr. Neal is a co-founder of Hemedex where he oversees the development of intellectual property and legal affairs. Prior to Hemedex, he served as Corporate Counsel at Thermo Electron Corporation, a multinational provider of products and services in the energy, environmental and biomedical fields. He was also formerly a patent attorney at Westvaco and Polaroid Corporations. Mr. Neal has a B.S. degree in Civil Engineering from North Carolina State University and a Juris Doctorate (Law) from American University in Washington, D.C.

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