Abstract: An introducer for an endotracheal tube (50) has a bendable rod (10) with a video camera (15) and light source (16) mounted at its patient end (12) and connected by a cable (17) to an electrical connector (2) fixed at the machine end of the rod. The connector (2) has a narrow profile to allow the endotracheal tube (50) to be slid over it. In use, the camera (15) is connected to a video display (4) via a cable (5) and a mating connector (6), the rod (10) is bent to the desired shape and inserted into the trachea. The mating connector (6) is then disconnected to enable the endotracheal tube (50) to be slid to the correct position in the trachea along the rod (10) and over the connector (2) mounted at the machine end of the rod. The rod (10) is then removed to leave the tube (50) in position.

Abstract: Sleep apnoea treatment equipment has a housing containing a blower connected to the housing outlet via a duct. A length of flexible breathing tubing connects the housing outlet with a face mask worn by the patient so that he receives a flow of air at elevated pressure. An acoustic sensor is mounted in the duct close to the blower and supplies an output to a processor. The processor supplies an output to a loudspeaker or other acoustic source mounted downstream of the sensor, between it and the outlet. The processor drives the source to produce anti-noise in anti-phase with the blower-generated noise so as to reduce the noise level outside the equipment.