A first ultrasound medical instrument includes a medical ultrasonic blade having first, second and third blade portions. The second blade portion is more bendable than either of the first and third blade portions. A second ultrasound medical instrument includes a medical ultrasonic blade having a proximal...http://www.google.de/patents/US7621930?utm_source=gb-gplus-sharePatent US7621930 - Ultrasound medical instrument having a medical ultrasonic blade
