?:definition
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Humidifiers designed to add moisture and heat to the gases that are insufflated into the abdominal cavity during laparoscopic procedures. The humidifying devices (e.g., cassettes) are usually inserted in the tubes running from the insufflator to the port that provides access to the patient\'s abdomen (e.g., a trocar or insufflation needle). These humidifiers typically include a control module that houses the control and safety circuits for the humidifier and appropriate tubing, in addition to the cassette containing the heating elements, humidifying media, and filters. Heated humidifiers are used as accessories of laparoscopic insufflators; they are typically intended to increase the humidity of the gas over 90% and also to warm the gas to a temperature close to the normal body temperature (i.e., close to 36.5 degrees C/98 degrees F).
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