Surgical handpiece for providing transverse and longitudinal motion to a surgical tip

A surgical instrument comprising:

• an ultrasonic horn having an emulsifying needle at a distal end thereof;
• a plurality of piezoelements about a proximal end of the ultrasonic horn;
• a plurality of flexible electrode segments comprising first sets of the electrode segments atop each of the plurality of piezoelements and second sets of the electrode segments below each of the plurality of piezoelements, and comprising at least pairs of the electrode segments in which each pair comprises an electrode segment atop a one of the plurality of piezoelements and a paired electrode segment below that one of the plurality of piezoelements;
• a plurality of flexible electrically conductive interconnections that electrically interconnect at least the first sets and second sets, and the pairs, flexibly about each of the plurality of piezoelements;
• and
• a power source applied via a controlled double-pole, double-throw (DPDT) switch,
• wherein a first oscillating uniform excitation of the first sets with a first uniform opposing excitation of the second sets by the power source via the plurality of flexible electrically conductive interconnections effectuates a longitudinal ultrasonic vibration of the ultrasonic horn,
• wherein a second oscillating uniform excitation of first ones of the pairs with a second uniform opposing excitation of other ones of the pairs via the plurality of flexible interconnections effectuates a transversal ultrasonic vibration of the ultrasonic horn,
• wherein the plurality of flexible electrode segments and the plurality of flexible electrically conductive interconnections are formed together on a single flexible substrate,
• wherein each of the piezoelements is cylindrically shaped with a curved lateral surface, and wherein the flexible substrate is arranged on alternating sides of respective curved lateral surfaces of the piezoelements.