Anil Patel , from The Royal National Throat Nose and Ear Hospital, London, UK, in 2015 described the use of technique to prolong the apnoea time during difficult airways management. His paper, published on Anaesthesia, can be downloaded here:
Transnasal Humidified Rapid-Insufflation Ventilatory Exchange
https://doi.org/10.1111/anae.12923