Spinal joint

Details Spinal joint Spinal joint

1990-10-26

1991-10-01

Apley, Richard J.

Surgery

Instruments

Orthopedic instrumentation

606 54, 606 59, 606 60, 606 72, A61F 244, A61F 230

Patent

active

050530348

ABSTRACT:
A spinal joint for use in spinal surgery includes two blocks pivotally connected to each other. One block is secured to a vertebrae with a bone screw, which the other block connects to another spinal joint. The blocks rotate relative to one another, and can be locked relative to one another in various angular positions. Serrations on one block engage with corresponding serrations in the pivotal connection portion of the second block at a selected angle, and are locked in place by a locking screw.

REFERENCES:
patent: 2391537 (1945-12-01), Anderson
patent: 2439995 (1948-04-01), Thrailkill
patent: 4483334 (1984-11-01), Murray
patent: 4484570 (1984-11-01), Sutter et al.
patent: 4946458 (1990-08-01), Harms et al.

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