:Thanks! Thanks also for tweaking the wording a bit. Apologies for taking so long to get those changes done; I had to learn about the procedure and everything before I could write about it and that takes time. I think there's still more to say about the catheter and its development, use, and reception (including the company he founded to manufacture it). I've seen some reports on problems with the catheter (apparently the tip can sometimes break off) but I think that information would belong in an article on the catheter itself, if one exists.