catheter such as treatment tip similarly the term u201c distally u201d refers to a direction that is generally away from the operator along the apparatus during use and the term u201c proximally u201d refers to a direction that is generally toward the operator along the apparatus fig2 illustrates an embodiment of a multi stage balloon catheter 200 having multiple balloons inflated the multi stage balloon catheter 200 is comprised of a catheter body 204 having a distal end 202 and a proximal end not shown the proximal end would typically extend out of a patient body during use and may terminate in a hub or other typical component the catheter body 204 has a lumen 206 for delivering inflation fluid to a first inflation port 208 and a second inflation port 222 in some embodiments including the embodiment of fig2 the catheter body 204 has an additional lumen 210 for receipt of a wire guide not shown the wire guide may be guided to a treatment site and then the catheter body 204 is advanced over the wire guide to position the distal end 202 of the catheter body 204 proximate the treatment site the first balloon 214 has a first volume 218 and the second balloon 216 has a second volume 220 introduction of an inflation fluid into either of the volumes 218 220 will inflate the respective balloon 214 216 associated with that volume 216 220 the first port 208 provides fluid communication between the lumen 206 and the first volume 218 and the second port 222 provides fluid communication between the lumen 206 and the second volume 220 a stent 224 is shown on the exterior of.