Medical Devices Expert Witnesses: 21

Khalid Sorensen, PhD, is a highly accomplished technology leader in Automation, Mechatronics, Motion Control, Manufacturing, Machine Vision, and Human-Machine Interaction. He has over 20 years of experience developing and deploying world-class mechatronic, motion control, and automation solutions.

Dr. Sorensen has directed the development and implementation of 100s of complex, multi-disciplinary mechatronic systems for high-profile industry leaders including Toyota, Ford, Alcoa, Caterpillar, Boeing, NuScale, and many others, and high-profile facilities including Fukushima and Chernobyl.

Litigation Support - Dr. Sorensen has testified in numerous Product Liability and IP disputes – both at the Federal and District court levels, as well as the ITC, USPTO, and US Customs and Border Protection.

Areas of Expertise:

Career Highlights:

• Founded a technology company where he invented and was the Chief Architect of Expertoperator^TM, Safemove^TM, Automove^TM, and Cranevision^TM – technology known within the primary metals, automotive, and heavy-equipment sectors for enhancing crane safety, productivity, and ease-of-use; Developed state-of-the-art, on-line, time-optimal trajectory synthesis software for Cartesian machines - key drivers in the acquisition of his company 5 years after inception by a global leader in automation.
• Served as CTO at PaR Systems, a world-class supplier of large-scale robotic automation, control, advanced manufacturing, and nuclear-handling solutions.
• Founded Finity Engineering, which provides design, analysis, consulting, and litigation support services in the areas of robotics, automation, and mechatronics.
• Adjunct Professor of Mechanical Engineering at Georgia Tech. Teaches various engineering topics including Dynamics, Controls, Vibrations, Mechatronics, the Design Process, Product Development, Engineering IP, Product Liability, and others.
• Invited talks at premiere institutions globally including MIT, Kumoh National Univ. of Tech, Korea Atomic Energy Research Inst., Hyung Hee Univ., Huazhong Univ. of Science & Tech.

View Finity Engineering's Business Consulting Profile.

Divya Chander, MD, PhD, is a board-certified Anesthesiologist with a Neuroscience PhD and extensive teaching experience. Dr. Chander trained at Harvard, UCSF, UCSD, and the Salk Institute. She is currently the Chair of Neuroscience and Faculty in Medicine at Singularity University. She is also a Visiting Scholar in the Stanford Department of Medicine, Biomedical Informatics, and was a member of the Stanford Anesthesiology Faculty for 8 years.

Litigation Support - Dr. Chander offers expert witness services to attorneys representing plaintiff and defense. Services include medical record review, thorough reporting, depositions, and trial testimony as needed.

Areas of Expertise:

Background Information - Dr. Chander's postdoctoral training Stanford (Deisseroth/de Lecea Labs) allowed her to use light-activated ion channels inserted in DNA (optogenetics) to study sleep and consciousness switches in brains. In the operating room, she applies EEG technology to understand what human brains and the underlying networks look like when they lose and regain consciousness. Dr. Chander also has a precision medicine initiative focused on understanding genetic variability in responses to anesthetic drugs and brain oscillations. Her goal is to understand neural mechanisms of consciousness, as well as the evolution of human consciousness secondary to human augmentation.

Dr. Chander is working on devices that read and write the brain (brain mapping, neuromodulation) and link to brain machine interfaces for diagnostic and therapeutic purposes.

Dr. Chander also works in the field of space life sciences. A finalist for astronaut selection and an alumnus of the International Space University, she has performed remote simulations of trauma rescues, anesthesia and surgery in Mars analogue settings with physicians in the US, France, and the Concordia base in Antarctica. She has also been involved with a consortium that elaborated a road-map for studying the effect of microgravity and radiation on the nervous system, cardiovascular system, cognition and sleep.

View Dr. Divya Chander's Consulting Profile.

Dr. Glenn Prestwich  is a National Academy of Inventors fellow with over 45 years of experience as a professor, entrepreneur, and biotech startup C-suite executive. Dr. Prestwich specializes in Biomedical Intellectual Property. He has been a prolific inventor since 1977, and an expert witness in IP law cases since 2007. He is an inventor on over 95 patents and patent applications, including 48 issued patents.

Litigation Support - Dr. Prestwich brings to all legal and technical cases a deep appreciation for how chemistry informs the invention and development of products that offer solutions to problems in the life sciences and medicine, ranging from disease detection and treatment to tissue healing and regeneration. He’s been involved in intellectual property litigation that concern medical devices, diagnostics, new pharmaceuticals, drug delivery, agrochemicals, and consumer products.

As an expert witness, Dr. Prestwich enjoys the challenges of dissecting the validity (or invalidity) of patents in litigation. He appreciates the subtleties of claim construction and works collaboratively with attorneys to identify successful arguments based on sound science and legal principles. He has drafted over 40 expert reports, declarations, and affidavits in support of his attorney clients.  He has been deposed 18 times and testified in Court four times.

Glenn D. Prestwich on Accessible and Experienced Expert Witnesses

Areas of Expertise:

Publications - Dr. Prestwich is an organized, clear, and effective writer. He has co-authored  over 610 additional peer-reviewed articles in the scientific literature, and written over 50 single-author scientific publications, reviews and book chapters. His publications encompass areas such diverse topics as anti-cancer drugs, gels for wound repair, cell therapy, and regenerative medicine, insect and pest control agents, cholesterol-lowering agents, lipids and cell signaling tools, and anti-inflammatory agents.

Peter Crosby has over 45 years experience in the Medical Devices Industry. He has served as  CEO of six medical device companies (public and private) in four countries, and has been a member of the board (including chairman of the board) of 13 companies. Mr. Crosby is an accomplished entrepreneur and company builder, and has brought many medical device products to the world market from concept to market release through R&D, clinical trials and regulatory approval (CE Mark and FDA). He is an inventor on over 50 US patents and applications.

Education includes a Bachelor of Engineering (Electrical) and Master of Engineering Science (Biomedical Engineering).

Litigation Support - Mr. Crosby has served as an expert  in many cases including product liability, intellectual property (patent disputes including infringement, validity, IPR and ITC), alleged misappropriation of trade secrets, fiduciary duty of directors, and commercial contracts disputes (including commercially reasonable efforts"). 

Product Expertise:

View Peter Crosby's Consulting Profile.

Dr. Andersson, a Board Certified Neurologist and Associate Professor at UCLA, specializes in traumatic brain injury, multiple sclerosis, complex regional pain syndrome, capacity, headaches, memory disorders, and nursing home standard of care. Between 1992 and 1997, he completed an internal medicine internship and then neurology residency at the University of California, San Francisco where he also served as Chief Resident. He has completed fellowships in multiple sclerosis at UCSF and in neuromuscular disease at Stanford University. He served on the faculty at Stanford University in the neuromuscular division before moving to the Valley in 1999 and has served this community as both an outpatient and inpatient neurologist for over 20 years.

Areas of Expertise:

Selected Background Experience

Prior to beginning his residency, Dr. Andersson graduated cum laude in medicine from the University of Cape Town in 1986. In 1988, he earned an honors degree in medical biochemistry at the University of Cape Town. Between 1988 and 1991, Dr. Andersson obtained a D. Phil in neuroimmunology at Oxford University as a Rhodes Scholar. He was Yamanouchi Junior Research Fellow in Cell Biology at Wolfson 1991-2. Junior Research Fellowships are awarded to the top 2% of graduates at Oxford University.

Dr. Andersson has served his community as an outpatient and inpatient neurologist for over 20 years. He has been published in laboratory and clinical neurology. He has been an ad hoc reviewer for the journal Muscle & Nerve. He is the Medical Director of Stratus Neurodiagnostics, the leading outpatient EEG services company in the U.S. He has served as a Principal and Co-Investigator for dementia trials at The National Research Institute.

Dr Karthik Reddy Pammi, MBBS, MS (Orthopaedics)
Fellowship-trained orthopaedic surgeon performing 750+ robotic / computer-assisted knee and hip replacements and 300+ ACL / PCL/ shoulder arthroscopies each year at Apollo Hospitals, Chennai.

Expertise: 

Robotic TKA Alignment Errors, Early Loosening, Revision Arthroplasty, Tunnel Misplacement, Arthroscopy Complications, Implant Product Lability. Reports in =14 days; Zoom depositions U S-time; fees review $450/hr, depo $500/hr.