Implantable device for straightening and fixing vertebrae

Details Implantable device for straightening and fixing vertebrae Implantable device for straightening and fixing vertebrae

1993-07-30

1995-01-10

Graysay, Tamara L.

Surgery

Instruments

Orthopedic instrumentation

A61B 1758

Patent

active

053803248

ABSTRACT:
An implant for the spinal column for fixing the vertebrae, especially the cervical vertebra, on the anterior side, i.e., on the side of the esophagus, wherein the implant has screw holes for screwing together with the vertebra and has a multi-component design, and has at least two mounting plates, which are provided with at least two screw holes. The mounting plates are connected by an articulated bearing each to a spindle having right-hand and left-hand, self-locking threads with an angular shaft piece for actuating the spindle, wherein the mounting plates have a ribbed area on the side facing the vertebral bone W. The articulated bearing includes a bearing bush extending outwardly from each mounting plate and a bearing pin which has a threaded hole for engaging the spindle. The bushing has a hole allowing the spindle to pass through the bearing bush wherein pin is moveable within the bearing bush.

REFERENCES:
patent: 4611581 (1986-09-01), Steffee
patent: 4771767 (1988-09-01), Steffee
patent: 4773402 (1988-09-01), Asher et al.
patent: 5057109 (1991-10-01), Olerud
"Vitallium Surgical Appliances", Bone Plates, Mar. 1948, p. 8.

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