You should always seek medical help first if you've been injured from a defective medical device. To recover compensation for your injuries you must provide proof that they happened. By the time you're in court, your injuries may have healed, so it's important to have a medical doctor back you up. You must be able to prove the medical device was defective and caused your injuries. After the injury occurs collect all evidence that provides proof of what caused the injury. Contact a personal injury lawyer who has experience dealing with similar cases for the best chance of receiving full compensation.