| 摘要 |
This invention is a neonatal airway adapter ( 10 ) with a sliding internal passage ( 54 ), which virtually eliminates void volumes ( 112 ) within the bore ( 76 ) of the airways, such that mixing of the exhaled gases with void gases is reduced, and the waveform of the breath is maintained without undue distortion. Furthermore, the virtual elimination of void volumes reduces the level of re-breathing. The neonatal airway adapter connects to endotracheal tube adapters in such a way as to nullify the effect of the differing internal diameters ( 20 ) and internal lengths which are used in ET adapters currently available. The cross section of the internal bore of the airway through which the breath flows from the ET adapter to the connector of the ventilator is maintained almost constant, especially in the region of the gas sampling point ( 66 ), to ensure that reasonable conditions of laminar flow, and accurate sampling are maintained. |
