Human orthopedic vertebra implant

Details Human orthopedic vertebra implant Human orthopedic vertebra implant

1990-09-04

1992-03-03

Isabella, David J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

606 60, 606 61, A61F 200

Patent

active

050928937

ABSTRACT:
A vertebra structural implant for connecting two or more vertebral bodies in axial and lateral directions having implant plates attached to opposed sides of the spinal column by studs with a cross brace between the implant plates to prevent slipping or rotating of the vertebrae being stabilized. The implant has openings with curved lips and the studs have spherical surfaces and fit freely through the openings to prevent angular misalignment between the studs and the plates to lessen stress on the studs. The implant has grooved lock washers and the cross brace has grooves which mate with grooves in the implant plates to lock the plates in position relative to the studs and to each other.

REFERENCES:
patent: 3693616 (1972-09-01), Roaf et al.
patent: 4003376 (1977-01-01), McKay et al.
patent: 4448191 (1984-05-01), Rodnyansky et al.
patent: 4759769 (1988-07-01), Hedman et al.
patent: 4836196 (1989-06-01), Park et al.
patent: 4946458 (1990-08-01), Harms et al.

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