Polyaxial pedicle screw system
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United States of America Patent
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Issued Date -
Aug 12, 2004
app pub date -
Feb 4, 2004
filing date -
Feb 7, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A spinal fixation system for use in the mobilization of a sequence of spinal bones includes a unique pedicle screw assembly. The pedicle screw assembly includes a pedicle screw having a head portion pivotally secured within a base of a body and a threaded shaft portion extending therefrom for insertion into the spinal bone. The body includes a rod passageway adapted to receive a rod extending between two or more pedicle screw assemblies. The body includes oppositely threaded internal and external threads. A set screw having exterior threads engages the internal threads of the body so as to be selectively disposed therein and in contact with the rod. A nut having internal threads engages the external threads of the body. The set screw and nut are preferably simultaneously fastened by turning in opposite directions to counteract the forces applied to the assembly and spinal bones.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SITISO ARTHIT | UNIT B 12067 FOOTHILL BLVD LAKEVIEW TERRACE CA 91342 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bailly, Frank | San Pedro, CA | 2 | 330 |
Sitiso, Arthit | Arleta, CA | 1 | 330 |
Wagner, John | Chatsworth, CA | 63 | 1293 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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