Patent ID: 8182446

Claim:
A balloon intraluminal drug delivery catheter assembly, comprising: a catheter shaft extending from a proximal end to a distal end and comprising an inflation lumen and a fluid delivery lumen extending through at least a portion of the catheter shaft, the catheter shaft further comprising a thermoformable polymer disposed around the inflation lumen and fluid delivery lumen; a first balloon mounted on a distal region of the catheter shaft in communication with the inflation lumen; and a second balloon disposed around the first balloon and defining an annular balloon fluid delivery lumen between the first balloon and the second balloon in communication with the fluid delivery lumen, the second balloon including a plurality of apertures in communication with the annular balloon fluid delivery lumen, the plurality of apertures being disposed along a longitudinal portion of the second balloon; wherein the catheter shaft further comprises an intermediate region interposed between a proximal region and a distal region and a wire guide port disposed along the intermediate region, the catheter shaft comprising a guide wire lumen extending through at least a portion of the distal region and being adjacent the inflation lumen and fluid delivery lumen, and the guide wire lumen being in communication with the wire guide port; and wherein the catheter shaft further comprises a first portion having the inflation lumen and the fluid delivery lumen in a coaxial configuration and a second portion having the inflation lumen and the fluid delivery lumen in a side-by-side configuration, the second portion extending from the second balloon to at least a portion of the proximal region, and the first portion extending from the second portion to a manifold comprising an inflation port in communication with the inflation lumen and an injection port in communication with the fluid delivery lumen.