Spinal fixation

Details Spinal fixation Spinal fixation

1986-03-25

1988-08-16

Sewell, Paul T.

Surgery

Truss

Perineal

128 78, A61B 1756

Patent

active

047636440

ABSTRACT:
A spinal scoliosis fixation implant comprises a plurality of devices which are associated with respective vertebrae and which are interconnected by a single semi-rigid wire, or by a cable with abutment ferrules. Each device may comprise a bone screw or hook with a slotted, externally threaded head into which is inserted the wire or cable and thereon a clamping element which projects slightly from the mouth of the slot, and a nut which is screwed onto the head to press the clamping element onto the wire or cable. The wire or cable can be unclamped, to permit adjustment of the device along the wire or cable, by simply untightening the nut.

REFERENCES:
patent: 4047523 (1987-01-01), Hall
patent: 4611581 (1987-01-01), Steffee
patent: 4648388 (1987-03-01), Steffee
patent: 4653481 (1987-03-01), Howland et al.
EPO Publication 0 128058 A1, published Dec. 12, 1984, Inventor: Cotrel.
EPO Publication 0 140 790 A2, published May 8, 1985, Inventor: William Peze.
U.K. Patent Application 2 131 300 A, published June 20, 1984 for Spinal Compression/Distraction Hooks, Inventor:*.

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