The victim was bound upon this wheel, on his knees, with his hands behind his back.
A continuous positive airway pressure (CPAP) machine was initially used mainly by patients for the treatment of sleep apnea at home, but now is in widespread use across intensive care units as a form of ventilation.
CPAP (continuous positive airway pressure) therapy is the most common and effective treatment for sleep apnea. Learn about the different types of sleep apnea, how CPAP therapy can help you, and how to choose the right CPAP mask for your sleep needs.