What's the deal with Obsidian Scalpels?

Ok so I work for a surgeon, and I had heard that there are modern day surgeons using obsidian scalpels because they are much sharper and therefore produce a cleaner incision that results in less scaring. We’ve started doing procedures on varicose veins and reducing scars in these cases is obviously a good thing. So I tried looking up if obsidian scalpels are approved by the FDA for use on people and if so where to buy them. I hear all kinds of anecdotal examples of various surgeons using them, but I can’t find out where to buy them and if they are allowed by the FDA.

I found the ones at finescience.com, but they said that their products are not designed for use on humans, but for animals and research only. I also called the FDA’s division of medical devices and the lady was very nice, but she couldn’t tell me one way or the other without a manufacturer. I’m running out of ideas here and was hoping the “collective” could give me a hand by steering me in the right direction.