An ultrasound cavital probe suitable for transrectal or other usage, includes an ultrasound probe, having an outer housing, a pair of motors within one end of the housing, a first shaft operatively associated with one of the motors to provide longitudinal movement to the ultrasound transducer, while...http://www.google.es/patents/US8137279?utm_source=gb-gplus-sharePatente US8137279 - Scanning probe
