Oh god, that's an incredibly disturbing picture. I've sliced my finger while user a Plane (a tool to slice wood), so I can imagine the initial shock and pain she must have felt.
It looks more to me like the damage that would happen, if someone had their hand caught in one of the meat tenderizing machines that butchers and meat-cutters use in the meat markets.
yep. it's called a jaccard. I worked as a meat cutter for awhile, and we used them all the time.