Fastener for external fixation device wires and pins
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United States of America Patent
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Sep 19, 1995
Issued Date -
N/A
app pub date -
Feb 2, 1994
filing date -
Jun 10, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A fastener for wires or pins used with an external fixation device to rigidly immobilize bone fragments during linear or angular distraction thereof includes a fixation bolt with either a transverse asymmetrical shank bore, or a transversely slotted bolthead for providing multiple contact surfaces to secure the wires or pins, regardless of their diameters. Alternatively, the fastener can include a washer or a threaded washer-like member having nonparallel opposing planar surfaces with a transverse slot in one. The transverse slots in the bolthead, washer and/or threaded washer-like member preferably include multiple cavities so as to increase the number of surfaces for contacting the wires or pins.
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