An ultrasound examination system, including an ultrasound probe detachably connected at its proximal end to a probe operating unit and having an ultrasound transducer rotatably mounted on the tip end of a flexible insert member and a rotation transmitting means passed through the insert member to rotate...http://www.google.fr/patents/US5211176?utm_source=gb-gplus-shareBrevet US5211176 - Ultrasound examination system
