Apparatus is provided for ablating tissue of a patient by applying ultrasound energy to the tissue. The apparatus is typically delivered to the targeted tissue via a catheter and includes an ultrasound array, which is adapted to be driven as a phased array to concentrate the ultrasound energy on the...http://www.google.es/patents/US7854733?utm_source=gb-gplus-sharePatente US7854733 - Phased-array for tissue treatment
