3M Company Missouri Cases

Katherine O'Haver sued 3M Company, alleging negligent and defective design, manufacturing, and marketing of its Bair Hugger patient warming system, which she claimed caused a periprosthetic joint infection after knee surgery. Following a jury verdict for 3M, O'Haver appealed, raising nine points concerning evidentiary and discovery rulings. The appellate court affirmed the trial court's judgment, finding no error, primarily due to O'Haver's failure to preserve issues through offers of proof or demonstrate prejudice, and upholding the trial court's discretion regarding discovery and expert testimony limitations.