Executive Summary: Key Legal and Evidentiary Issues

• Scope of medical record disclosure required for certification in a class action alleging defective medical devices.

• Relevance of co-morbidities and pre-existing conditions to the alleged device-related injuries.

• Determination of whether plaintiffs or the court decide the relevance of medical evidence at the certification stage.

• Impact of changes to the Class Proceedings Act on the predominance of common versus individual issues.

• Necessity of full medical records to assess claims of failure to warn and causation.

• Appropriateness of ordering production of sensitive medical information before full merits analysis.

Facts of the case

Paul Pedersen, the proposed representative plaintiff, initiated a class action against Advanced Bionics LLC and related defendants, alleging that certain cochlear implants designed for hearing-impaired individuals were defective. The claim centers on the assertion that these implants allowed bodily fluids to leak into the device, resulting in a range of harmful effects, including device malfunction, pain, vertigo, and the need for surgical replacement. Both Pedersen and another putative class member, Patric Boon, had their implants surgically replaced and provided affidavits describing their symptoms and experiences. The plaintiffs produced only partial medical records, withholding information they deemed irrelevant to the device’s performance or failure.

Discussion of policy terms and legal framework

The defendants sought an order compelling the production of complete medical records for both Pedersen and Boon, including records related to the implants, all pre-existing conditions for a five-year period prior to implantation, and all subsequent medical care. The defendants argued that recent amendments to the Class Proceedings Act require that common issues must predominate over individual issues, necessitating a more comprehensive evidentiary record at the certification stage. They contended that without full disclosure, it would be impossible to distinguish between harms caused by the device and those resulting from unrelated health conditions.

The plaintiffs resisted full disclosure, asserting that only relevant and necessary records should be produced and that they should determine what is relevant. However, Justice Morgan emphasized that the court, not the affiants, must decide relevance, particularly where the plaintiffs themselves acknowledged other health issues that could explain their symptoms. The court noted that claims of failure to warn require disclosure of all medical advice received, especially when there is disagreement between a plaintiff and their physician about the cause of symptoms.

Analysis and reasoning

Justice Morgan found that the plaintiffs’ limited disclosure was insufficient for the court to conduct a meaningful screening of the certification criteria. The court highlighted the need for an objective assessment of whether the alleged harms were caused by the implants or by other medical conditions. The decision referenced prior case law, emphasizing that certification cannot proceed on a limited record and that the court must have access to all potentially relevant information to determine the appropriateness of class proceedings.

While acknowledging that certification is not a full merits trial, the court held that it is a “meaningful screening device” and that the defendants are entitled to test the plaintiffs’ allegations by exploring alternative explanations for their symptoms.

Ruling and outcome

The court ordered the plaintiffs to produce the specified medical records for both Pedersen and Boon, as detailed in the defendants’ motion. The decision allows for written submissions on costs, with a process set for both parties to make their submissions within specified timeframes. The successful party in this motion was the defendants, who obtained the order for production. The exact amount of costs or monetary award has not yet been determined, as it will depend on subsequent submissions and the court’s decision on costs.