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The suction catheter or nozzle is the terminal piece for a suction machine or unit which is used to draw up blood, mucus or vomit from operation sites or the airways. These are often transparent or have a transparent section so that the aspirated material can be seen passing up the tube to the reservoir. Often the nozzle section has a hole in the side which reduces the suction pressure (i.e. provides less vacuum) at the end of the nozzle, but allows the suction to be raised to a maximum simply by placing a finger over the end. They are often tapered at the end, allowing the main length of the catheter to be wider in diameter to prevent obstruction as debris passes along it.
Content and Design Copyright 2000 Dr. Malcolm C Brown. See Title Page for more details