My doctor is currently using 10cc bands. What are the differences in bands and why is there a difference? Is it just newer bands come out with different sizes?

This link might answer your question:

http://www.lapbandtalk.com/f73/technical-lap-band-reference-15216/

Thanks for the Link. I have an Advanced Platform Band (Large) that is pretty new, so I am learning that there are different bands, different sizes, and the amount of fill from person to person is totally not a indicator of correct fill quantities. Everyone seems to respond uniquely. It is sooooo interesting.