Surgery – Instruments – Orthopedic instrumentation
Patent
1996-07-11
1999-03-23
Tucker, Guy V.
Surgery
Instruments
Orthopedic instrumentation
606 72, A61B 1770
Patent
active
058852840
ABSTRACT:
A compression locking variable length cross-link device having a pair of rod hooking elements, each having coupling ends which are attachable to a rod. The opposing ends of the first of these elements includes a pair of extending members each having a hole; the holes being mutually co-linear. The opposing element of the second element includes a single extending member which has an elongated hole, such that when it is disposed between the pair of extending members of the first element, a linear passage is defined through the three holes. A hinge post is disposed in the co-linear passage; the post having a threaded top portion. The elongated hole permits the first and second elements to be translated relative to one another with the hinge post in place. A nut is engageable with the threaded top of the post, such that if tightened, the pair of extending members deflect inwardly into contact with the single extending member of the second element to crush lock the elements together. Various embodiments include features which permit enhanced rotationalability.
REFERENCES:
patent: 5261907 (1993-11-01), Vignaud et al.
patent: 5306275 (1994-04-01), Bryan
patent: 5312405 (1994-05-01), Korotko et al.
patent: 5368984 (1994-11-01), Martin et al.
Errico Thomas J.
Ralph James D.
Tatar Steven
Shai Daphna
Third Millennium Engineering, L.L.C.
Tucker Guy V.
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