Patent ID: 8532749

Claim:
An angioplasty device, comprising a combination catheter with proximal and distal ends and at least two lumens within the catheter, a guide wire of a size to fit through one of the lumens, an inflatable angioplasty balloon disposed along a distal portion of the combination catheter, and connected to on the other of the lumens for inflation of the balloon, a series of exit holes disposed around the periphery of the combination catheter and located adjacent to the inflatable angioplasty balloon and spaced away from the distal end of the catheter, the exit holes connecting said one lumen with the exterior of the catheter, a liquid contrast agent within said one lumen connected to the exit holes, and the guide wire passing through said one lumen connected to the exit holes and out through an end opening at the distal end of the catheter, the guide wire being smaller than said one lumen through which it passes so that the liquid contrast agent can flow through to the exit holes, whereby the contrast agent is delivered out through the exit holes to the exterior of the catheter close to the position of the balloon, while the guide is present, and whereby diagnostic angiography, angioplasty, and further angiography and angioplasty can be performed with the combination catheter while the catheter remains in a blood vessel.