Final answer:
Lithotripsy is a noninvasive surgical technique that uses high-intensity ultrasound pulses to crush kidney stones.
Step-by-step explanation:
Lithotripsy is a noninvasive surgical technique that crushes kidney stones into smaller pieces using high-intensity ultrasound pulses. The fragmented stones are then able to pass easily through the urinary tract. This procedure is performed to treat kidney stones that cause pain or blockage in the urinary system.