| 摘要 |
<p>A respiratory assistance apparatus consists of a tube (4) with a main channel (5), connected by its distal end (3) to the airway of the patient, and an auxiliary channel (8) connected by its proximal end to a source (25) of a breathable gas. The apparatus consists of a tube (4) with a main channel (5), connected by its distal end (3) to the airway of a patient, and an auxiliary channel (8) connected by its proximal end to a source (25) of a breathable gas. At the outlet end of the auxiliary channel the main channel is fitted with a deflector (14b) creating an elongated gas pressure zone (18) surrounded by a ring (36), the distance (d) between the ring and the deflector being approximately equal to the diameter of the main channel's distal end. Both the distance (d) and the diameter of the ring can be adjustable.</p> |
