Are manufacturers automatically liable for any injury received by someone using their product?
No, there are certainly times when people are injured by a product that may be dangerous, but not defective. For example, if one were to accidently cut oneself with a sharp knife while peeling potatoes, there is not likely to be a claim against the manufacturer of the knife, unless there was something wrong with the knife. Knives must be sharp to accomplish their intended purpose. Similarly, the manufacturer is only responsible for injuries that might be received during a foreseeable use or application of the product.