Patent ID: 7753907

Claim:
A system, comprising: a catheter; an expandable medical device at least partially surrounding a portion of the catheter, the expandable medical device having a wall that at least partially defines an expandable region of the expandable medical device, the wall having an inner surface and an outer surface; first and second blades carried by the medical device and extending in a direction along a longitudinal length of the expandable medical device, wherein each blade includes a first portion having a positively charged pole and a second portion having a negatively charged pole; an energy source; and an energy transmitter extending through the wall in the expandable region of the expandable medical device such that the energy transmitter passes from the inner surface of the wall to the outer surface of the wall, the energy transmitter configured so that energy emitted by the energy source can be transmitted to at least one of the blades via the energy transmitter.