Patent ID: 7494467

Claim:
An ultrasound medical system comprising an ultrasound transducer assembly having a longitudinal axis, having a distal end, and having: a) a first ultrasound transducer disposed proximate the distal end and having a substantially-fully-cylindrical ultrasound-emitting outer exposed surface which is substantially coaxially aligned with, and outwardly-facing from, the longitudinal axis, wherein the first ultrasound transducer is an ultrasound-medical-treatment-only ultrasound transducer; b) a second ultrasound transducer having a substantially-fully-cylindrical ultrasound-emitting outer exposed surface which is substantially coaxially aligned with, and outwardly-facing from, the longitudinal axis, wherein the second ultrasound transducer is an ultrasound-medical-treatment-only ultrasound transducer; and c) a third ultrasound transducer disposed longitudinally between the first and second ultrasound transducers and having a plurality of planar transducer elements arranged to provide the third ultrasound transducer with an ultrasound-emitting outer exposed surface which is substantially-entirely planar or includes at least a concave surface portion.