Ya it's called a lithotripsy. I had a fairly good sized kidney stone for which I had this procedure done. The procedure itself is really not bad. you are put under and sound waves are used to break the stone up. The only pain I felt was where they sent the sound waves through was a little sore afterwords, but nothing bad, especially compared to the pain of passing a stone. But just because the stone is broken does not mean that it still wont hurt when you pass the pieces.
I remember I was sitting at my girlfriends sisters house and all of a sudden i was getting a super sharp pain, so I went home. The whole ride home it felt like I was being stabbed repeatedly. Finally when I got home I took the most painful piss of my life and passed what looked like a star exploding. No lie this fucking thing looks like a bunch of salt crystals all put together. To this day I have no idea why it is called a stone, because it does not resemble any stone I have ever seen.
To the OP if you have any questions shoot me a pm.