Abstract: An electronic surgical probe including an axially elongated member adapted to receive ultrasonic vibrations from an ultrasonic motor or transducer and having a circular cross-section, has a coaxially positioned cannula or sheath and outer layer of TEFLON surrounding the elongated member, the cannula or sheath defining an aperture adjacent the distal end portion of the elongated member, wherein fluid adjacent the distal end portion of the elongated member is activated or cavitated by ultrasonic vibrations from the distal end of the elongated member and passing through the aperture of the cannula acts upon tissue and/or other matter.