Open Question: Where can I suggest an invention for scientists?

I really need help, so do not with other people's depression. The problem is, most of us do not want to open, because it focused on the difficult part. I have a scientist to create a vacuum device, you will attach it to your brain and bad things will get you to suppress your system, but the thought of people using it can tell what had happened, and then they can be further to help depressed people. This is a good idea, but I can where a proposal?