A wheelchair provided by for customer shopping convenience was equipped with a wire basket. A woman said she was injured when the basked fell and hit her eye as she was exiting the chair.

Our initial analysis showed that a person of the plaintiff's height could injure her eye on the hook that locked the basket in place when it was lowered.

Further analysis showed that the mechanism holding the basket in the up position had no positive stop to keep it upright as a person slid forward and from side to side as he or she was exiting the chair.

The simple design change we proposed eliminated the hook entirely. Computer models let the jury see exactly what we were talking about.