APPARATUS AND METHOD FOR TREATMENT OF ETHMOID SINUSITIS
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United States of America Patent
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app pub date -
Sep 27, 2013
filing date -
Mar 15, 2013
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Abandoned
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Abstract
An apparatus may be used to form an opening in a sinus wall. The apparatus comprises a first cutting member and a second cutting member. The first cutting member comprises a sharp tip and a helical blade. The second cutting member is slidably disposed about the first cutting member. The second cutting member comprises a sharp distal edge. An outer sheath is slidably disposed about the first and second cutting member. The sheath may be retracted to uncover the helical blade. The sharp tip may be used to pierce the sinus wall and the helical blade may be used to drive the first cutting member through the sinus wall. The second cutting member may be advanced over the first cutting member to form a circular opening in the sinus wall.
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