Surgery – Instruments – Orthopedic instrumentation
Patent
1992-07-07
1994-11-29
Brown, Michael A.
Surgery
Instruments
Orthopedic instrumentation
606 72, A61B 1756
Patent
active
053685938
ABSTRACT:
The present invention relates to apparatus and methods for attaching devices to bones. In particular, structure is provided for attaching spine fixation devices to individual vertebra. A screw is threadably attached to the vertebra, and a spacer is provided for receipt on the screw. The spacer is positioned to engage an exterior surface of the vertebra. The hardware, such as a nut, or saddle assembly, engages a second surface of the spacer. Various structure on the spacer may be provided to engage the bone surface. A conical, curved, or flat surface may be provided. One or more teeth may be provided for engaging the bone surface. A porous wafer may be used in combination with the spacer to permit bone ingrowth into the porous wafer following attachment. Porous material may also be used in connection with the spacer surface which engages the bone surface. Additional spacers may be provided to further position the hardware away from the surface of the bone. By tightening down the hardware on the second surface of the spacer, a secure attachment of the hardware and screw to the bone is provided.
REFERENCES:
patent: Re27085 (1971-03-01), Weidner
patent: 1105105 (1914-07-01), Sherman
patent: 2242003 (1941-05-01), Lorenzo
patent: 2414882 (1947-01-01), Longfellow
patent: 2494229 (1950-01-01), Collison
patent: 2511051 (1950-06-01), Dzus
patent: 2532296 (1950-12-01), Giesen
patent: 2570465 (1951-10-01), Lundholm
patent: 2631584 (1953-03-01), Purificato
patent: 3164418 (1965-01-01), Biesecker
patent: 3202033 (1965-08-01), Weidner
patent: 3744488 (1973-07-01), Cox
patent: 3896504 (1975-07-01), Fischer
patent: 4059102 (1977-11-01), Devas
patent: 4493317 (1985-01-01), Klaue
patent: 4524765 (1985-06-01), de Zbikowski
patent: 4564007 (1986-01-01), Coombs et al.
patent: 4569338 (1986-02-01), Edwards
patent: 4611581 (1986-09-01), Steffee
patent: 4648388 (1987-03-01), Steffee
patent: 4653481 (1987-03-01), Howland et al.
patent: 4696290 (1987-09-01), Steffee
patent: 4714469 (1987-12-01), Kenna
patent: 4716893 (1988-01-01), Fischer et al.
patent: 4793335 (1988-12-01), Frey et al.
patent: 4887595 (1989-12-01), Heinig et al.
patent: 4907577 (1990-03-01), Wu
patent: 4913134 (1990-04-01), Luque
patent: 4963144 (1990-10-01), Huene
patent: 4973333 (1990-11-01), Treharne
patent: 5030220 (1991-07-01), Howland
patent: 5034011 (1991-07-01), Howland
patent: 5084049 (1992-01-01), Asher et al.
patent: 5098434 (1992-03-01), Serbousek
patent: 5108395 (1992-04-01), Laurain
patent: 5108397 (1992-04-01), White
patent: 5108399 (1992-04-01), Eitenmuller et al.
patent: 5180393 (1993-01-01), Commarmond
patent: 5207678 (1993-05-01), Harms
Amset R-F document, entitled "Reduction-Fixation System Surgical Technique", dated 1991, Exhibit A.
"Mechanical Stability of the Pedicle Screw Fixation Systems for the Lumbar Spine", SPINE, Asian Edition, vol. 17-No. 3S, pp. S51-S54, dated Mar. 1992, Exhibit B.
"Human Lumbar Vertebrae-Quantitative Three-Dimensional Anatomy", SPINE, vol. 17-No. 3, pp. 299-306, dated Mar. 1992, Exhibit C.
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