A catheter and stent delivery system for alleviating a blockage within a vessel of a patient, allowing for the precise placement of a non-sliding balloon catheter assembly in a single step. The catheter assembly comprises a guide wire, a balloon wrapped around the distal end of the guide wire, and an inflation lumen running the length of the-guide wire, temporarily attached to said guide wire in a non-sliding means, and embodying an adapter to accommodate an inflation syringe, the inflation lumen and the guide wire. A stent can be utilized around the inflation balloon to further alleviate the stenosis.