The Shockwave intravascular lithotripsy system produces a flash of light as it releases a sonic shockwave, as seen here as it is about to shatter a gypsum bead during a TCT 2019 demonstration at the vendor's booth. You can see the cracks forming as the bead breaks apart in the right bead. The technology combines a miniaturized lithotripsy system with a low-pressure balloon catheter to expand peripheral or coronary arteries without causing vessel trauma. Photo by Dave Fornell