I think someone like Elon Musk is capable of doing such a thing. But the complexities of the law around the medical industry definitely don't make it easy and even after you're up and running, infiltrating a lobbyist dominated niche is the next hurdle.

I'm not sure if you've heard the story but there is an American inventor by the name of Thomas Shaw. He invented the first safe, retractable syringe that was more reliable than any existing solution. Companies tried copying his design and managed only to produce sub-par copies, it's an interesting read. http://www.washingtonmonthly.com/features/2010/1007.blake.ht...