Fastener for external fixation device wires and pins

Details Fastener for external fixation device wires and pins Fastener for external fixation device wires and pins

1995-06-02

1997-05-20

Tucker, Guy V.

Surgery

Instruments

Orthopedic instrumentation

606 56, A61B 1762

Patent

active

056308140

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.

REFERENCES:
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patent: 4244360 (1981-01-01), Dohogne
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patent: 4978348 (1990-12-01), Ilizarov
patent: 4988349 (1991-01-01), Pennig
patent: 5015205 (1991-05-01), Franks, Jr.
patent: 5129388 (1992-07-01), Vignaud et al.

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