Sidelined 1950s mountain-climbing technology resurrected to help patients
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in order to treat chronic obstructive pulmonary disease, Smiths Medical and University College London have resurrected the sidelined closed-circuit breathing system designed for a failed Everest expedition over 50 years ago. Closed-circuit devices, (also known as rebreathers), create a seal over the user’s mouth, retaining the exhaled air, scrubbing it of carbon dioxide, and allowing the user to inhale it again.
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Alexis Olson
- November 9, 2009 @ 21:08 UTC













