Fig. 2From: High-flow oxygen therapy in tracheostomized patients at high risk of weaning failureGas flows through the specific interface for the tracheostomy tube (OPT870, Fisher and Paykel, Healthcare, Auckland, New Zealand) tested in the present study. The interface (a) is composed of a connector (length = 38 mm) equipped with a side stream gas delivery tube (diameter 12 mm). The angle between the axes of the connector and the delivery tube is 60° (b)Back to article page