Abstract: A device for injecting medication into a vessel wall includes a plurality of flexible tubes mounted between a multi-lumen catheter and a grommet. A push-pull wire is connected to the grommet and passed through a lumen of the multi-lumen catheter. A plurality of injectors are mounted on each of the flexible tubes. During use, the device is first positioned in a vessel. The push-pull wire is then partially withdrawn forcing the grommet to advance towards the multi-lumen catheter. The advancing grommet forces the flexible tubes to bow outwardly, embedding the injectors into the vessel wall. A fluid medication is then introduced through the multi-lumen catheter, into the flexible tubes and out of the injectors for infusion into the vessel wall.

Abstract: A device and method for dilation or recanalization of a diseased vessel by use of a balloon catheter with cutting edges to make longitudinal cuts in the vessel wall is described. The diameter of the vessel increased without the subsequent secondary cellular proliferation or restenosis in the vessel caused by conventional angioplasty methods.