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Humidifiers designed to add moisture 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, appropriate tubing, humidifying media, and filters. Humidifiers are used as accessories of laparoscopic insufflators; they are typically intended to increase the humidity of the gas over 90 percent. Laparoscopic insufflation humidifiers that also provide heat to the gas to reach a temperature close to the normal body temperature are also available.
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