You were injured through no fault of your own. You totally have a case and a right to be compensated for your pain and suffering. It was not unforseeablen and you shouldn't waste your time trying to get them to respond to your concerns. What gets them to jump into action is a pending court case. If you want to claim, get a lawyer you're comfortable with and they will take it from there. The first consultation is usually free, just ask. They will tell you exactly the steps you need to go through including who to talk to. They will also give you an idea of payout figure. It may take up to a year and will probably be settled out of court. Lawyers will tell you up front what percentage they get of your settlement fee. You may get several letters from the hospital or health dept saying they are not going to pay, they may even say you are at fault. Pay them no mind as this is standard procedure. Once they know there is a claim pending they will make sure to replace the drain as a court case costs more than a drain. Hope you feel better soon.