Reduced area thread profile for an open architecture anchor
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United States of America Patent
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Aug 30, 2016
Grant Date -
Sep 18, 2014
app pub date -
Mar 14, 2013
filing date -
Mar 14, 2013
priority date (Note) -
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Abstract
The disclosure provides examples of an open architecture anchor for securing soft tissue to bone, for example, to repair a torn rotor cuff. The anchor includes a helical screw thread having a base and two sidewalls that are non-linear. The non-linear sidewalls extend from opposing ends of the base and meet at a peak. The non-linear sidewalls are circumscribed within a triangle defined by the peak and ends of the base. Compared to the standard triangle profile, the helical screw thread profile has a smaller cross-sectional surface area and, consequently, removes less bone. The helical screw thread having the reduced cross-sectional area preserves bone stock and enhances the holding strength of the anchor in bone.
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