Hi - my name is Kirk and I'm a litigation
attorney. Thanks for your question, but I am sorry for your trouble with this. I'm sure going through something like this is a haunting experience.
I'll preface everything by recommending that you consult a local personal injury
or medical malpractice attorney in your area about suing the hospital and the medical providers (doctors, nurses, etc.). These cases are very complex, require expert medical witnesses, etc.
That said, the standard in these cases is to determine whether or not the medical provider fell below the applicable standard of care - - which is what a reasonable medical provider would have done in the same situation. IF your providers fell below that standard and didn't act as a reasonably prudent provider, then there would be negligence and grounds for you to sue.
Usually, before filing suit, you must have a physician or medical expert review the medical records to determine whether there is a violation or a breach of the standard of care that you can pursue before even filing the case.
Thus, it is really difficult to pursue a claim on your own. However, if you believe that the providers fell below the standard of care, then you should get your medical records and consult with a local attorney about getting this started.