In order to sue for medical malpractice, it must be demonatrated that a patient suffered harm due to negligence on the part of a medical professional. On that basis, it appears that you may have a legitimate claim. However, the harm imposed as the result of medical negligence must be proven and the standard of finding negligent behavior in such a suit is different than that necessary for other types of personal injury cases. Here, the standard of care is based on that a similarly trained physician in the same medical community would have given. Therefore, you would have to prove that the treatment that your father received did not meet such a standard.At this point, you should consult with an attorney who specializes in medical malpractice claims. They can best advise you on as to your rights and how to proceed.