Surgically implantable spinal correction system

Details Surgically implantable spinal correction system Surgically implantable spinal correction system

1988-01-11

1989-06-06

Hafer, Robert A.

Surgery

Truss

Perineal

128 92YJ, A61F 504

Patent

active

048361968

ABSTRACT:
An apparatus for connecting a structure with a vertebral body of a spinal column and for transmitting a load between the structure and the vertebral body. The apparatus includes a fastener with a threaded portion for threaded engagement with a surface defining an opening in the vertebral body to connect the vertebral body with the structure. A spacer is adapted to be located between the fastener and the structure for transmitting load therebetween. The spacer is made of a material which plastically deforms as a function of time and load applied thereto to decrease the load transmitted between the vertebral body and the structure.

REFERENCES:
patent: 2219423 (1940-10-01), Kurtz
patent: 3648691 (1972-03-01), Lumb et al.
patent: 3659595 (1972-05-01), Haboush
patent: 4322193 (1982-03-01), Stahl
patent: 4594026 (1986-06-01), Hauer et al.
patent: 4611581 (1986-09-01), Steffee
patent: 4653481 (1987-03-01), Howland et al.
DuPont Bulletin, 4/1954, pp. 1-3, "The Properties of DuPont Nylon Resin".

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