Obstructive sleep apnea (OSA) is a common sleep disorder in which the throat repeatedly closes during sleep, interrupts breathing and then sleep, and can contribute to morbidity such as daytime sleepiness, cardiovascular consequences, and premature death. Standard treatment with a continuous positive airway pressure (CPAP) machine delivers positive pressure through a mask to splint the airway open. However, CPAP is expensive, noisy, and requires electricity, all of which can limit access and nightly adherence. A concept for a mechanical CPAP device designed to be powered by the natural work of breathing rather than an external electrical source is presented in this Design Innovation paper.

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