ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up to receive our biggest stories as soon as they’re published. This story was co-published with the Pittsburgh Post-Gazette. Interested in learning more about this investigation? Join us for an upcoming virtual conversation. Register today to save your spot. The first complaints landed at the offices of Philips Respironics in 2010, soon after the company made a fateful decision to redesign its bestselling breathing machi...