My wife's in a come, can I knock you up?

It's the 1800's.Charles wants a kid. His wife is in a coma. He pays sophie marceau to let him knock her up and then takes the baby. She comes back to find the baby, and I'm sure you can guess what happens from there.
My biggest problem with the movie is this: It's the 1800's. This man's wife is in a COMA for 10 YEARS. She's just lying in bed 24/7. She has NO tubes hooked up to her. How the heck is she alive?????

6/10