APPARATUS AND METHOD FOR ACCESSING A SINUS CAVITY
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United States of America Patent
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app pub date -
Aug 31, 2016
filing date -
Feb 27, 2008
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Abandoned
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Abstract
A system for accessing a sinus cavity of a subject includes an access tool configured to penetrate into the sinus cavity from a location external the subject. The system further includes an access sheath having a distal tubular portion, a lumen extending through the access sheath and the distal tubular portion and dimensioned to receive the access tool, the distal tubular portion comprising one or more cutting surfaces disposed about an external surface thereof. The one or more cutting surfaces may include a plurality of longitudinally oriented grooves for flutes disposed about the periphery of the distal tubular member.
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