IN-VITRO COMPARISON OF 2 BALLISTIC SYSTEMS FOR ENDOSCOPIC STONE DISINTEGRATION

Endoscopic stone disintegration can be performed with various lithotri psy techniques. We compared two ballistic systems in vitro: the Swiss Lithoclast and the Combilith (Olympus), Measurements of the probe move ment; i.e., maximum velocity and displacement, were performed using an optical high-speed technique based on a frame transfer camera. The Li thoclast and Combilith both achieve excellent probe velocities. Howeve r, the Lithoclast achieves equal velocity with less probe displacement .