| 摘要 |
A nasal cannula 1 for inclusion in medical apparatus that delivers a breathable gas mixture of helium and oxygen to a patient comprises a length 12 of high pressure narrow bore tubing having a proximal end region for connection to a high pressure source, a cylinder 2 , of the breathable gas mixture at a junction 8 . The length 12 of tubing has a distal end region connected to at least one nasal administration device 10 . The distal end region of the length 12 of tubing has an orifice for the expansion of the breathable gas mixture. |
