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Tapered threaded orthopedic fastener engaging predetermined radial preloads
专利权人:
T. Hall Griffin
发明人:
T. Hall Griffin
申请号:
US12902513
公开号:
US08771325B2
申请日:
2010.10.12
申请国别(地区):
US
年份:
2014
代理人:
摘要:
An orthopedic fastener rated to be received into a corresponding bone specimen. The corresponding bone specimen has an overall outer thickness from near cortex to far cortex. Preferably, but optionally, the corresponding bone specimen also has a predetermined bone hole preparation which includes a pilot hole through the near cortex and into the far cortex. The fastener itself comprises a plurality of cutting flutes on one end. The cutting flutes transition into a tapered male threaded portion. The tapered male threaded portion provides a plurality of self-tapping threads. The self-tapping threads taper from a minimum thread crest diameter Dmin proximal to the cutting flutes to a maximum thread crest diameter Dmax distal from the cutting flutes. The cutting flutes are further rated to ream the pilot hole, when provided, to a diameter of about Dmin.
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