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 electrode segments (106a-d) comprising first sets of the electrode segments (106a-b) atop each of the piezoelements and second sets of the electrode segments (106c-d) below each of the piezoelements, and comprising at least pairs of the electrode segments (106a-d) in which each pair comprises an electrode segment (106a-b) atop a one of the piezoelements and a paired electrode segment (106c-d) below that one of the piezoelements; a plurality of 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, 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 interconnections effectuates a longitudinal ultrasonic vibration of the ultrasonic horn, and 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, characterized in that: the plurality of electrode segments (106a-d) and the plurality of interconnections are flexible and comprise additive and/or subtractive manufacturing printing on a flexible substrate, and the power source is applied via a controlled double pole, double throw, DPDT, switch. 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 electrode segments (106a-d) comprising first sets of the electrode segments (106a-b) atop each of the piezoelements and second sets of the electrode segments (106c-d) below each of the piezoelements, and comprising at least pairs of the electrode segments (106a-d) in which each pair comprises an electrode segment (106a-b) atop a one of the piezoelements and a paired electrode segment (106c-d) below that one of the piezoelements; a plurality of 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, 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 interconnections effectuates a longitudinal ultrasonic vibration of the ultrasonic horn, and 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, characterized in that: the plurality of electrode segments (106a-d) and the plurality of interconnections are flexible and comprise additive and/or subtractive manufacturing printing on a flexible substrate, and the power source is applied via a controlled double pole, double throw, DPDT, switch. the plurality of electrode segments (106a-d) and the plurality of interconnections are flexible and comprise additive and/or subtractive manufacturing printing on a flexible substrate, and the power source is applied via a controlled double pole, double throw, DPDT, switch.