Patent ID: 8328833

Claim:
An end effector of an ultrasonic surgical instrument, the end effector comprising: a first resonant member operatively connected to a first transducer and a second resonant member operatively connected to a second transducer, each transducer effecting vibrations along the length of the corresponding resonant member; wherein each resonant member includes a body portion and a resonant structure, the resonant structure extending longitudinally and distally from the corresponding body portion, the resonant structure including a linear blade having an operative surface, and each transducer being directly attached to a body portion of the corresponding resonant member; wherein the first transducer is staggered longitudinally with respect to the second transducer resulting in a relative distance between the transducers along a longitudinal axis of the end effector, the relative distance remaining substantially the same during vibrations of the resonant members.