Intellex Acquires Expert by Big Village

We're thrilled to announce that Intellex has acquired Expert by Big Village, effective March 22, 2024. This strategic move enhances our capabilities and strengthens our commitment to delivering exceptional solutions to our customers.

Stay tuned for more updates on how this acquisition will benefit our clients and experts.

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Expert Details

Injury Biomechanics (head and spine), Medical Device Design, Structural Analysis, Patents

ID: 726312 Maryland, USA

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Expert has over 30 years of experience in structural analysis, including experience porting finite element codes to specialized architectures, developing special-purpose mesh generation tools, and assessing the correspondence of structural models with experimental measurements. Expert has developed de novo programs to simulate bone remodeling around orthopedic devices, and has broad experience in structural nonlinearities such as contact, plasticity, NiTinol alloys, and fracture mechanics. Expert has used structural analyses in expert witness testimony and has reviewed the testimony of opposing experts. Based on a doctorate in mechanical engineering from MIT, years of university teaching experience in mechanics and biomechanics, and on over 30 refereed journal articles, Expert has the appropriate background for a range of engagements in mechanics and structural analysis.

Expert passed the patent bar in 2002, and has testified in a number of patent disputes.

Expert has been working in biomechanics since his BS degree in mechanical engineering from MIT in 1980, and worked building instrumentation while an undergraduate as well. His initial position, between undergraduate and graduate school, was at the orthopedic biomechanics lab at the Mayo Clinic from 1980 to 1981, when he returned to graduate school. Expert has published on bone mechanics, cartilage mechanics, injury mechanics, and circulatory control over the space of the last 30 years. He engaged in research on traumatic brain injury due to blast loading at the Johns Hopkins University Applied Physics Laboratory, where he is able to consult for non-government-related issues. Expert has given deposition testimony in over 20 cases regarding injury mechanics and the mechanical factors that are associated with injuries.

Expert has taught biomechanics and mechanical design at Rice University and at three medical schools (to residents in preparation for professional exams).

Expert has a broad background in medical device analysis and consulting, including projects involving stents, endoscopic surgical tools, bone plates, pacemaker leads, catheters, total joint replacements, inhalers, vena cava filters, wound therapy devices, exercise equipment, in vitro fertilization equipment, and insulin pumps. Expert has published papers on failure processes in total joint replacements, testing methods for interfaces, and elastography. Since passing the patent bar in 2002, Expert has consulted on several patent actions involving medical devices as well as actions involving paintball guns, children's furniture, and other devices.

Expert is currently developing finite element computer models of the head, neck and thorax for the analysis of injury in military applications. In the past several years, Expert has developed computer models for mechanisms of mild traumatic brain injury, blast-related head trauma, and blast-resistant crew seating in military vehicles. In the past several years, Expert has also given expert witness testimony on injuries in automobile accidents and industrial accidents, including cases involving construction and offshore oil platforms.

Oil Rig Injury Cases: Testified in court and deposition on claims involving back and neck injuries during duties on oil rigs: Pulling slips, Nippling Down. Developed measurements and mathematical models for fluid pumping due to loose tolerances in orthopedic implants under load. Measured strains in a deep water repair device for 20 inch pipelines to assess the accuracy needed for proper sealing at depth. Developed an ultrasonic indentation gauge for measuring cartilage material stiffness in situ. Developed a measurement technique and measured strains within tissue expanders for reconstruction after mastectomy: Showed that the local curvature of the tissue expander was responsible for strain differences within the envelope of the expander.


Computational mechanics and Fluid dynamics
• LS-Dyna (expert), Abaqus (expert), Ansys (proficient), CTH (proficient), Fluent (proficient)
• Truegrid (expert), LS-Prepost (expert), Cubit (proficient), OASYS (proficient), Hypermesh (proficient)
• Extensive interfaces to Matlab, Python

Computational Electrodynamics
• Sim4Life (expert), Comsol (proficient), Maxwell (proficient)

Technical Areas of Practice
• Blast Physics and Injury
o Extensive modeling with LS-Dyna and CTH
o Applications to air and underwater explosives and coal mine explosions
o Supervised younger colleagues.
• Nonlethal Weapons
o Kinetic – injury profiles
o Electric Incapacitation – models for physiologic reactions
• Medical Devices:
o Joint Replacement – Extensive experience (dating to 1988) in analysis and measurements
o Orthopedic Instrumentation – Surgical tools and plates
o Pacemakers – Modeling and measurement experience on leads
o Infusion pumps – analyses of seals
• Railroad applications
o Project work on locomotive cab design and crashworthiness
o Patent on collision damper
• Accidents
o Injury analysis in falls, automotive accidents, blast, and impact
o Consulting expert in litigation on automotive, industrial, maritime, and petrochemical settings
• Intellectual property
o Passed the patent bar in 2002
o Consulting expert in litigation on medical devices, bicycle seats, children’s furniture


Year Degree Subject Institution
Year: 1999 Degree: MBA Subject: Marketing and Entrepreneurship Institution: University of Houston
Year: 1985 Degree: ScD Subject: Mechanical Engineering Institution: MIT
Year: 1980 Degree: BS Subject: Mechanical Engineering Institution: MIT

Work History

Years Employer Title Department
Years: 2022 to Present Employer: Undisclosed Title: Principal Clinical Research Analyst Department:
Project Manager and Subject Matter Expert on Blast Injuries
• Provided scientific review and summaries of injury and biomechanical literature on injuries due to explosive blast exposure
• Led a 5 person team tasked with generating reports to upper-level command on the status of the science, reviewing proceedings of scientific meetings run by BIRCO, and supporting responses to requests for information from DoD. Supported administrative requirements.
Years Employer Title Department
Years: 2018 to 2022 Employer: Johns Hopkins Medical School Title: Faculty Department: Department of Radiology
• Developed low-cost instrumentation system for diagnosis and status evaluation in Parkinson’s disease in a cross-functional team including neurologists, engineers, and radiologists. The system develops remote diagnosis technology using standard evaluation methods augmented by wavelet transforms. We are currently developing a product vision, roadmap, and customer interface for this digital product. Machine learning methods are being applied.
• Published two journal articles and delivered five podium presentations at national meetings
Years Employer Title Department
Years: 2009 to 2022 Employer: Johns Hopkins University Applied Physics Laboratory Title: Senior Professional Staff Department: National Security Technology Division
• Led a team developing computational models for analysis of injuries to human anatomical structures due to IED and projectile threats. Participated in sponsor engagement and project planning, adjusting the scope and deliverables for projects funded by DoD organizations.
• Conducted computational model validation against measurements from explosive and shock-tube tests on phantoms and Post-Mortem Human Subjects
• Led the Development of anatomically accurate computational models for analysis of nonlethal weapons, working with the sponsor to adapt to changes in support from prior participants. Gained sponsor buy-in for a revised tool to allow users to develop nonlethal weapons that are effective without causing serious injury The tool, consisting of analysis codes and numerical models, will be available on user machines or over the web. Characterized the existing software (based on Java and MATLAB) for re-coding in Python, and supervised the younger developers on the implementation. Advised on product development, contributed to the technical development, and led a technical team.
• Provided mentorship to analysis staff in computational analyses using large-scale computing hardware and advanced analysis codes, including LS-Dyna, Abaqus, and Sandia CTH.
Years Employer Title Department
Years: 2005 to 2009 Employer: Foster-Miller Inc Title: Senior Engineer Department: Structures and Transportation
• Developed a technology plan for a measurement of Traumatic Brain Injury severity, involving several stakeholders and developers. Achieved $4m in funding in collaboration with trauma surgeons in New York, the Department of Defense, and developers at Qinetiq (Great Britain). The two-year effort involved proposal preparation and technology planning, along with hiring staff and developing measurement protocols to satisfy DoD Technology Readiness standards.
• Developed new capabilities for analysis of railroad crashes involving fuel spills and the risk of fires or explosions. Worked in a cross-functional team of experimentalists and analysts to deliver a prediction of fire risk in derailments
• Developed nonlinear suspension capability for locomotive cabs that stabilized the ride, resulting in a team-developed prototype for sponsor testing.
• Led a cross-functional analysis team for the development of seat suspension systems for injury prevention in military vehicles, which resulted in a fielded product, used by a NATO country.
• Participated in Medical Device Research and Development Teams aimed at deployable heart valves, insulin pumps, and related devices.
Years Employer Title Department
Years: 2000 to 2005 Employer: Exponent Failure Analysis Associates Title: Senior Engineer Department: Biomechanics
• Initiated Biomechanics services in the Boston-area office, developing team projects with electrical and fire/explosive groups.
• Medical Device Analysis: Materials selection, Stress analysis, Patent infringement. Includes total joint replacements, stents, intravenous tubing, dialysis machines, catheters, vascular occlusion devices.
• Injury Analysis: Biomechanics, force and stress analysis of biological structures. Includes industrial injuries (oil rigs, construction sites) and accident analysis (automobile, bus, industrial equipment)
Years Employer Title Department
Years: 1999 to 1999 Employer: Resmed Title: Director Department: Business Development
• Manufacturer of Continuous positive Airway Pressure Devices. Tasked with developing applications in cardiology and stroke rehabilitation. Visited surgical and medical staff to structure project plans for 510(k) applications.
Years Employer Title Department
Years: 1993 to 1999 Employer: UT Medical School at Houston Title: Assistant Professor Department: Orthopedics
• Led a cross-functional Biomechanics Research group through departmental transitions from University to private organization and back to University organization. Developed outside funding, and shared resources from cardiology and anatomy labs.
• Supervised orthopedic resident research projects with several stakeholders and with industrial support
• Developed methods to measure pacemaker lead flexure for design by a sponsoring Texas manufacturer. Led a cross-functional team to develop the protocol, achieved $50k funding and developed measurements in collaboration with cardiologists, engineers, and data scientists.
• Developed experimental and computational models for orthopedic implants, including new methods to model bone adaptation to stress.
• Developed experimental and computational models for bone circulation in a team with orthopedic surgeons and engineers
• Did research on cement pressurization around total hip implants, resulting in a student master’s thesis and a publication in collaboration with a local orthopedic surgeon.
Years Employer Title Department
Years: 1993 to 1999 Employer: Rice University Title: Visiting Associate Professor Department: Mechanical Engineering
• Developed and Taught courses in biomechanics, mechanical design, and stress analysis
• Supervised Graduate Students
• Was part of a team that got $5M funding from the Whitaker foundation for the start-up of an Undergraduate Bioengineering Curriculum
Years Employer Title Department
Years: 1993 to 1999 Employer: University of Houston Title: Adjunct Professor Department: Mechanical Engineering
• Supervised Graduate Students
• Collaborated in research on elastography and was part of a thesis committee resulting in a student Doctoral thesis. (The student is currently tenured at Columbia.)
Years Employer Title Department
Years: 1990 to 1993 Employer: University of Missouri- Kansas City Medical School Title: Director of Research Department: Department of Orthopedics
• Initiated a Biomechanics lab in collaboration with the Chairman, and got support and buy-in for facilities and space.
• Won a three-year $180k Whitaker foundation grant to study high-precision methods for preparing bones for orthopedic implants, in collaboration with medical and dental school staff.
• Supervised orthopedic resident research projects including surgical techniques and materiel development for interface strength. Got buy-in and cooperation from Orthopedic Faculty.
• Developed computational bone remodeling simulations that led to several team publications and podium presentations
Years Employer Title Department
Years: 1985 to 1990 Employer: Massachusetts General Hospital Title: Assistant in Orthopedics Department: Biomechanics
• Conducted research on cemented and un-cemented total hip replacements as part of a cross-functional team. Developed methods to quantify ingrowth of bone into orthopedic implants using Scanning Electron microscopy. Co-Investigator on a $2M NIH grant for study of bony ingrowth fixation
• Developed software to quantify bone cement porosity, and participated in studies to minimize pores in bone cement which could decrease durability. These techniques are widely used today.
Years Employer Title Department
Years: 1985 to 1990 Employer: Massachusetts Institute of Technology Title: Research Associate Department: Department of Mechanical Engineering
• Supervised graduate and undergraduate student research, resulting in several completed theses. Collaborated on research with MIT professors on interface fracture.
Years Employer Title Department
Years: 1982 to 1985 Employer: Massachusetts Institute of Technology Title: Research Assistant Department: Department of Mechanical Engineering
• Thesis research on the MIT hip project, sponsored by a Whitaker Health Sciences Fund fellowship (three years, including tuition and stipend).
Years Employer Title Department
Years: 1981 to 1985 Employer: Massachusetts Institute of Technology Title: Teaching Assistant Department: Department of Mechanical Engineering
• Supervised labs, instructed students on the use of testing machines
Years Employer Title Department
Years: 1980 to 1981 Employer: Mayo Clinic Title: Research Engineer Department: Orthopedic Biomechanics Lab
• Did experimental and computational research on the mechanics of the elbow. Wrote data acquisition and analysis code, including determination of moment arms for muscles and constrained optimization for force analysis

Government Experience

Years Agency Role Description
Years: 2008 to 2009 Agency: USAMRMC Role: Reviewer Description: Reviewed Proposals for funding in Traumatic Brain Injury

Career Accomplishments

Associations / Societies
- Orthopedic Research Society
- American Society of Mechanical Engineers
Licenses / Certifications
PE Texas
Registered Patent Agent, USPTO
Publications and Patents Summary
- Refereed scientific papers: 42
- Letters to the editor: 3
- Meeting presentations (partial list): 75

Additional Experience

Expert Witness Experience
Approximately 20 depositions on injury, patent cases, and medical devices.
Six in-court appearances in injury, product liability, and patent cases.
Passed the Patent bar (as an agent), 2002.
Training / Seminars
Biomechanics courses for orthopedic residents.
Biomechanics courses for undergraduate and graduate students at Rice University.
Marketing Experience
Long-term exposure (over 25 years) to orthopedic devices and technology.

Language Skills

Language Proficiency
Russian Mid-intermediate level - can read scientific papers and web sites.

Fields of Expertise

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