Sorry to hear that! I hope your get it healed up and have full use of it soon!
I was in a hurry and sawing with a cordlesss circlesaw, and i hit my finger about a year ago. It went pretty deep, but other than a scar, and no feeling in that spot, it healed fine,
Then again, it wasn't near as bad as what you have described...
It made me a lot more careful when i'm using that little saw!!
DM