Implant for anterior dorsolumbar spinal osteosynthesis, intended

Details Implant for anterior dorsolumbar spinal osteosynthesis, intended Implant for anterior dorsolumbar spinal osteosynthesis, intended

1990-09-18

1992-04-28

Hafer, Robert A.

Surgery

Instruments

Orthopedic instrumentation

606 71, 606 73, A61B 1756

Patent

active

051083957

ABSTRACT:
This implant has in combination a pair of clamps (2) provided with spikes (3) and with screws (5) for fixing to two corresponding vertebrae (V2, V4) and notches (23) to support the tips of the blades of a pair of distraction forceps, a rigid plate (6) for interconnecting the two clamps (2) and whose ends are pierced with orifices (17) in which may engage threaded pieces (12) of the camps (2) and whose length (L) corresponds to the distance between the posterior orifices (9) of the clamps (2) after distraction of the vertebrae, and lastly nuts (7) for rigidly connecting together the plate (6) and the clamps (2). This implant has, in particular, the advantage of permitting distraction by the forceps bearing against the clamps instead of against the vertebrae, which was not possible with the previously known plates; in addition, it is compact while at the same time being sufficiently solid, and thus prevents any risk of rubbing against the aorta.

REFERENCES:
patent: 3242922 (1966-03-01), Thomas
patent: 4382438 (1983-05-01), Jacobs
patent: 4411259 (1983-10-01), Drummond
patent: 4554914 (1985-11-01), Kapp
patent: 4582445 (1986-04-01), Warshawsky
patent: 4655199 (1987-04-01), Steffe
patent: 4657550 (1987-04-01), Daher
patent: 4805602 (1989-02-01), Puno
patent: 4827918 (1989-05-01), Olerud
patent: 4913134 (1990-04-01), Luque
patent: 4944743 (1990-07-01), Gotzen

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