Sidelined 1950s mountain-climbing technology resurrected to help patients

The reason for Bourdilon and Evans' efficiency in their Everest climb was the closed-circuit breathing system they were pioneering, a design created by Bourdilon and his father (Image credit: Royal Geographical Society)

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Sidelined 1950s mountain-climbing technology resurrected to help patients

Evans and Bourdilon (Image credit: Royal Geographical Society)

Article Summary

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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