Styli used to position device for carrying out selective discetomy
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United States of America Patent
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Apr 9, 2013
Grant Date -
Jul 31, 2008
app pub date -
Aug 31, 2007
filing date -
Jan 26, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A set of styli comprised of a shaped memory or elastic metal are disclosed wherein each stylus has a different preformed curvatures for use with a cutting device for performing a selective discectomy. The device is inserted at a point chosen from contralateral, anterior or anterolateral relative to a herniation site. Once the cutting device is inserted its cutting window is moved to the desired position by inserting a first stylus having an appropriate curvature and moving the device, removing the stylus, inserting a second stylus with a different curvature relative to the first stylus before or after moving the device. By using a plurality of styli with different curvatures and using positioning movements the cutting window is positioned at the site of herniation and a selective discectomy is carried out.
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