Fracture fixation assembly with selectively removable protrusion

Details Fracture fixation assembly with selectively removable protrusion Fracture fixation assembly with selectively removable protrusion

1993-02-10

1994-06-28

Pellegrino, Stephen C.

Surgery

Instruments

Orthopedic instrumentation

606 62, 606 66, 606 67, A61F 504, A61F 232

Patent

active

053242920

ABSTRACT:
A fracture fixation system comprising an elongated inner member 20 and a hollow barrel 14 adapted to receive the inner member 20. The barrel 14 includes an integral protrusion portion 15 for mating with a corresponding recess 24 on the inner member 20. The protrusion portion 15 is selectively removable by separation from the barrel 14, so that if the protrusion 15 is not removed, the protrusion 15 and corresponding recess 24 prevent rotation between the barrel 14 and the inner member 20, or alternatively, if the protrusion 15 is removed, this allows rotation between the inner member 20 and the barrel 14.

REFERENCES:
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patent: 2834342 (1958-05-01), Yost
patent: 3489143 (1970-01-01), Halloran
patent: 4095591 (1978-06-01), Graham, Jr. et al.
patent: 4172452 (1979-10-01), Forte et al.
patent: 4432358 (1984-02-01), Fixel
patent: 4530355 (1985-07-01), Griggs
patent: 4612920 (1986-09-01), Lower
patent: 4657001 (1987-04-01), Fixel
patent: 4759352 (1988-07-01), Lozier
Key-Free.TM. Compression Hip Screw-Zimmer-1978.

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