A method for therapeutic treatment 37 wherein the shaft has a lumen and the intervention site is treated by introducing a balloon dilitation catheter distally through the lumen until {TAIL ~ the balloon} lies across {HEAD ~ the treatment site} and then inflating the balloon 
A method for therapeutic treatment 37 wherein the shaft has a lumen and the intervention site is treated by introducing a balloon dilitation catheter distally through the lumen until { TAIL ~ the balloon } lies across { HEAD ~ the treatment site } and then inflating the balloon
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH