Device null for lung ventilation while ventilating inside windpipe and

摘要

A method and apparatus for intratracheal ventilation (ITV) and intratracheal pulmonary ventilation (ITPV) in which a catheter (1) positioned in a patient's trachea at the carina (6) supplies a constant supply of fresh oxygen containing gas to flush anatomical dead space. By positioning the catheter (1) in the patient's trachea, the dead space of the trachea is bypassed and the trachea is only utilised for expiration. The catheter (1) includes a catheter tip (4) which directs the constant supply of fresh oxygen containing gas in a manner so as to create subatmospheric pressures near the carina (6) and thus allows control of intratracheal airway pressures during the entire respiratory cycle and prevents overinflation of the lungs.