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Apparatus and method for sequentially anchoring multiple graft ligaments in a bone tunnel
专利权人:
Stephen D. Fening
发明人:
Stephen D. Fening,Anthony Miniaci
申请号:
US12765444
公开号:
US08491652B2
申请日:
2010.04.22
申请国别(地区):
US
年份:
2013
代理人:
摘要:
An apparatus for anchoring at least two graft ligaments within a longitudinal bone tunnel includes a longitudinal sleeve having at least two radially spaced ligament-contacting surfaces located in lateral opposition to a sleeve inner lumen. The sleeve is configured for at least partial insertion into the bone tunnel with each graft ligament positioned laterally adjacent a different ligament-contacting surface. The graft ligaments are at least partially located between the bone tunnel and the sleeve. An actuating member has longitudinally separated proximal and distal actuating member ends. An asymmetrically offset profile is defined by at least one of the sleeve and the actuating member. The asymmetrically offset profile has a plurality of longitudinally spaced engagement thresholds. The actuating member is inserted longitudinally into the sleeve to cause frictional engagement of each graft ligament with both the bone tunnel and at least one ligament-contacting surface. The frictional engagement of each graft ligament is temporally spaced apart from the frictional engagement of at least one other graft ligament. The temporal spacing is provided by the plurality of engagement thresholds. A method of anchoring at least two longitudinally extending graft ligaments within a bone tunnel is also provided.
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中国工程科技知识中心
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