This will be a relatively inexpensive tool in most countries. In the US though, the plastic bag will be $3,000 and will not be reusable. Doctors will begin having to use them on every birth or risk litigation. By the way, you can sue your OBGyn until you are 18 for malpractice reasons.

It's a cool story though, car mechanic has idea and is able to sell it to big-business. I like it.