In VitroComparison of Two Ballistic Systems for Endoscopic Stone Disintegration

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