Patent ID: 8323307

Claim:
A balloon catheter for dilation of a vessel wall, comprising: a shaft having a distal end and a proximal end; a balloon mounted on the distal end of the shaft, the balloon having a distal portion, a proximal portion, wherein at least a length of an outer surface of the balloon comprises a working diameter adapted to dilate the vessel wall, the shaft having an inflation lumen extending therethrough in fluid communication with an interior region of the balloon, the balloon thereby being expandable between a deflated state and an inflated state; and a plurality of separate dilation elements each comprising a proximal coil, a distal coil, and a single dilation wire, the dilation wire having a proximal end, a distal end, and a middle portion, the middle portion of the dilation wire extending along the working diameter on the outer surface of the balloon, the proximal end of the dilation wire affixed to the proximal coil at a proximal joint where a diameter of the proximal end extends a predetermined distance into the proximal coil, wherein the proximal coil proximally extends from the working diameter of the balloon to the shaft, the distal end of the dilation wire affixed to the distal coil at a distal joint where a diameter of the distal end extends a predetermined distance into the distal coil, wherein the distal coil distally extends from the working diameter of the balloon to the shaft, the proximal and the distal coils being affixed to the shaft.