Medical Device & Product Liability Expert Witnesses

Medical device litigation is technically dense in ways that generic clinical or engineering testimony cannot adequately address. A device case often requires the jury to understand concepts from multiple disciplines simultaneously: the biomechanical environment in which the device operates, the regulatory pathway the manufacturer used to bring it to market, the post-market surveillance obligations that attach after clearance or approval, and the clinical consequences when something in that chain fails. Jurors do not arrive in the courtroom with that background, and judges evaluating admissibility under Daubert or analogous standards look for experts whose methodology traces to those specific technical domains rather than to general clinical inference.

An expert with direct experience in the device category — whether as a surgeon who implanted hundreds of the same construct, an engineer who ran design verification protocols, or a regulatory scientist who managed an FDA submission — brings a foundation that is both harder to exclude and more credible to a fact-finder. The investment in a qualified device expert is also a risk-management decision: an excluded or impeached expert can leave a case without the technical bridge between the evidence and the jury's understanding that the theory of liability requires.

The most frequently litigated device categories include orthopedic implants — spinal fusion hardware, total joint replacements, and fixation plates — where corrosion, fretting, malpositioning, or design geometry failures are contested. Cardiovascular devices including pacemakers, defibrillators, stents, and vascular grafts appear regularly, particularly in cases involving premature failure, lead fracture, or inadequate post-market surveillance by the manufacturer. Surgical instruments and powered equipment generate both product liability and surgical error claims when malfunction or misuse causes intraoperative injury.

Diagnostic and monitoring equipment — infusion pumps, ventilators, patient monitors — is implicated in cases where alarm fatigue, software error, or inadequate user interface design contributed to patient harm. Combination products, which include drug-device combinations such as drug-eluting stents or prefilled injection systems, present hybrid regulatory questions that require expertise spanning both FDA's Center for Devices and Radiological Health and Center for Drug Evaluation and Research. Class action and mass tort postures arise when a device failure pattern is widespread and plaintiffs share common questions of design or regulatory conduct across thousands of cases.

Every expert listed in this directory undergoes a structured verification process before the profile is made available. Board certification is confirmed against issuing board records at the time of onboarding and reviewed on a rolling basis. State medical or engineering licensure is checked in each jurisdiction the expert identifies as active, and any lapse, restriction, or disciplinary action in those license records is flagged and disclosed on the profile.

CVs are reviewed for accuracy and currency. Experts are asked to disclose prior testimony history, including any instance in which a court has excluded or limited their opinions. Sanctions, FDA warning letters, and debarment records are screened as part of initial intake. None of this process eliminates the attorney's obligation to conduct independent due diligence — particularly reviewing prior deposition transcripts and any published opinions from cases in which the expert testified — but it means the baseline credentialing work has been completed before you invest time in a candidate review.

A typical engagement begins with a preliminary case evaluation: the expert reviews a defined set of core materials — operative records, device labeling, FDA adverse event data, and the plaintiff's medical records — and provides an initial assessment of whether the theory of liability is supportable on current evidence. This scoping phase can save significant time and cost before full retention is formalized.

Once retained, the expert moves into comprehensive document review. In a device case, that corpus commonly includes the design history file, failure mode and effects analysis records, post-market surveillance reports, complaint files, FDA Form 483 observations and responses, and the peer-reviewed literature on the device category. The written expert report must connect those materials to the applicable standard — whether that is an FDA regulatory requirement, an industry consensus standard such as an ISO or ASTM specification, or the clinical standard of care for the procedure involved. Deposition preparation typically involves several hours of working through anticipated lines of cross-examination, and trial testimony requires coordination with counsel on demonstrative exhibits that translate complex engineering or regulatory concepts into language accessible to a jury without sacrificing accuracy.

Medical device expert testimony is a recurring target for exclusion motions because the field sits at the intersection of clinical medicine, engineering, and regulatory science — and courts have discretion to examine each dimension of an expert's methodology independently. An opinion on design defect that relies on engineering principles must trace to a methodology that is testable, peer-reviewed where applicable, and widely accepted in the relevant engineering discipline. An opinion on causation that bridges device failure to patient harm must satisfy the same reliability standards the court applies to clinical causation testimony generally.

Regulatory opinions present a distinct challenge. FDA regulatory requirements and guidance documents are not automatically admissible as the standard of care, and an expert who equates regulatory compliance with adequate design — or regulatory noncompliance with per se defect — may face a limitation ruling. The stronger approach is an expert who can articulate the engineering rationale underlying the regulatory requirement and explain why deviation from that standard, independent of its regulatory status, created an unreasonable risk. Attorneys should discuss methodology framing with a prospective expert early in retention to identify and address any soft points before the opposing motion cycle begins.