US Patent No: 6,814,734
Number of patents in Portfolio can not be more than 2000
Surgical instrumentation and method for forming a passage in bone having an enlarged cross-sectional portion
Stats
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Nov 9, 2004
Issued date -
Jan 17, 2002
filing date -
10/052,096
serial no -
In Force
status
Importance
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Abstract
A surgical instrument and method for forming a passage in bone having an enlarged cross-sectional portion is provided. The instrument includes an elongate member and a cutting element engaged thereto and transitionable between a retracted configuration for extending through a first portion of the passage and an expanded configuration for forming a second portion of the passage having an enlarged cross-section. In one embodiment, the cutting element is transitioned between the retracted and expanded configurations by axially displacing the cutting element relative to the elongate member. In another embodiment, the elongate member includes a tapping thread configured to cut threads along the first portion of the passage, and the cutting element is a blade configured to form the enlarged cross-section when transitioned to the expanded configuration. In another embodiment, the cutting element is arranged in an axial orientation when in the retracted configuration and an angular orientation when in the expanded configuration.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,571,189 Expandable fabric implant for stabilizing the spinal motion segment | 496 | 1994 | |
| 5,549,679 Expandable fabric implant for stabilizing the spinal motion segment | 525 | 1995 | |
| 6,383,188 Expandable reamer | 114 | 2001 | |
| 6,575,978 Circumferential resecting reamer tool | 24 | 2001 | |
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| 5,015,255 Spinal stabilization method | 404 | 1989 | |
| 5,445,639 Intervertebral reamer construction | 249 | 1991 | |
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| 4,586,497 Drill fixation device and method for vertebra cutting | 37 | 1983 | |
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| 5,954,722 Polyaxial locking plate | 332 | 1997 | |
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| 5,591,170 Intramedullary bone cutting saw | 111 | 1994 | |
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| 5,306,284 Surgical instrument | 19 | 1992 | |
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| 5,062,845 Method of making an intervertebral reamer | 267 | 1989 | |
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| 6,440,138 Structures and methods for creating cavities in interior body regions | 146 | 1998 | |
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| 4,646,738 Rotary surgical tool | 198 | 1985 | |
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| 5,620,456 Trocar assembly | 42 | 1995 | |
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| 6,679,886 Tools and methods for creating cavities in bone | 78 | 2001 | |
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| 5,928,239 Percutaneous surgical cavitation device and method | 119 | 1998 | |
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| 5,431,671 Surgical knife with retractable and angularly adjustable blade | 42 | 1993 | |
| 5,562,665 Method for reaming an intramedullary canal | 12 | 1995 | |
| 6,224,604 Expandable orthopedic drill for vertebral interbody fusion techniques | 44 | 1999 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 9, 2016 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |