After nearly losing his mother to breast cancer, a Mexican teen decided to invent something to help women detect the disease during its early stages.

“When I was 13 years old, my mother was diagnosed for the second time with breast cancer,” Julián Ríos Cantú said in a company video for his new invention. “The tumor went from having the dimensions of a grain of rice to that of a golf ball in less than six months. The diagnosis came too late and my mother lost both of her breasts and, almost, her life.”