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Catheters designed to be introduced into the nostrils that are long enough to keep the distal tip inside the nasal cavities, including the nasal sinuses. These devices are typically a soft plastic or rubber tube that may include a balloon attached to its distal tip. Dedicated nasal catheters are available to control nose bleeding, to supply oxygen, and to dilate the nasal sinus passages (usually introduced through nasal endoscopes).
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