Intervertebral fusing device

Details Intervertebral fusing device Intervertebral fusing device

1994-11-25

1995-06-13

Graysay, Tamara L.

Surgery

Instruments

Orthopedic instrumentation

623 17, A61B 1770

Patent

active

054238170

ABSTRACT:
An intervertebral fusing device having a spring body portion interconnecting a first spiral ring mount and a second spiral ring mount. Each spiral ring mount having a spiralling projection on the outer surface. The spring body portion is defined by a plurality of spiral loops. The plurality of spiral loops and spiralling projection of the spiral ring mounts have a constant pitch. A mount cover and a head member are threaded into an internally threaded portion of a respective spiral ring mount thereby forming a chamber in which bone grafts affinitive to the cells and tissues of a vertebra may be housed. The spring body portion is similar in elasticity to the vertebra.

REFERENCES:
patent: 843827 (1907-02-01), Knudsen
patent: 3068666 (1962-12-01), Sabadash
patent: 4501269 (1985-02-01), Bagby
patent: 4961740 (1990-10-01), Ray et al.
patent: 5015247 (1991-05-01), Michelson
patent: 5026373 (1991-06-01), Ray et al.

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