Kidney stones can be extremely painful and often caused by the growth of waste products in the blood. While smaller ones may be filled with urine, larger kidney stones can become stuck inside the kidneys. In some cases, invasive surgery is the only answer to removing them. Now, a team of scientists from the University of Washington in Seattle has developed a new, high-tech removal approach best defined as “ultrasound tweezers.” This would allow ultrasound beams to get rid of kidney stones in patients by completely driving them out of the body. The next step of the scientists is to conclude the work for actual kidney stones that are different in shape, structure, and composition, and to perform the manipulation in the kidney.