Ultrasonic medical device operating in a transverse mode

An ultrasonic medical device consisting of an ultrasonic generator (15) whose function is to produce ultrasonic vibration in the direction of the longitudinal axis of the ultrasonic generator; type connector ultrasonic horn (16); and at least one transformer section (18, 20) connected ultrasonically to supply ultrasonic energy (15) by the concha type connector (16), the transformer section (18, 20) modifies the amplitude of the ultrasonic vibration; and a flexible member (22) driven by the transformer section (18, 20), the flexible member (22) is characterized by operation in transverse mode ultrasonic vibration to produce a plurality of nodes and anti-nodes to lard of at least a portion of the flexible member (22), and wherein when in operation, said portion located along the length of the flexible member can be in communication with biological material.