| 摘要 |
A naso-oral device (10) for use in medical procedures such as endoscopy includes a bite block (12) and a gas manifold or nasal cannula (14) which are releasably engageable. When engaged, gas supplied to the gas manifold passes, in use, (a) towards a patient's nostrils, through openings (58) in the gas manifold; and (b) into the patient's mouth via a passageway (28) through the bite block. Exhaled air is sampled for CO2 monitoring via a coupling on the bite block and via nasal probes (74) on the gas manifold. The gas manifold can be detached from the bite block and still serve for both administering gas and sampling CO2 in exhaled air. |
