Arterial plaque removal with an electrostatic microactuator

The advent of microtechnology based on potentially simple fabrication techniques has given rise to the possibility of using electrostatic microactuators for removing arterial plaque found in diseased arteries. One of the main disadvantage of using active microdevices is the relatively low power output achieved. However, the measurements presented may be sufficient to provide a sound basis for a more effective actuator design. Further experiments are continuing with the aim of evolving more accurate descriptions of the mechanical properties of plaque so that optimal cutting strategies can be devised resulting in lower torque requirements, lower power requirements, and debris size consistent with an acceptable removal rate.