Expiratory positive airway pressure for sleep apnea goes from humble beginnings to devices with expanded features such as reusability.
When physician and engineer Rajiv Doshi’s wife complained about his snoring and asked if he could do something about it, he thought about it for a moment.
“Well, maybe that is a reasonable request; maybe I can do something about it,” Doshi recalls thinking. Maybe he could invent a solution.
An adjunct professor of medicine at Stanford University, Doshi, MD, thought back to his days in medical school in the ’90s, when he had watched a patient with emphysema do an exercise called pursed lip breathing.
The exercise of breathing in through the nose and slowly breathing out through pursed lips helped that patient create backpressure to keep the airways open.
When that memory floated back to him, he knew he could invent a device to create that same backpressure to keep his airways open during the night, and hopefully prevent his snoring. It worked.
After months of developing and testing a homemade anti-snoring device made from an…