Patent US6669732B2 successfully refreshed from Google Patents.
US6669732B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinal disc
Assignee: TLIF LLC
•
Filing: 2001-08-02
•
Granted: 2003-12-30
•
Expires: 2021-08-02
Abstract
Abstract A spinal disc prosthesis ( 10 ) to replace a damaged spinal disc in a spinal column ( 16 ) of a human, includes an elastomeric core ( 200 ) having upper and lower surfaces ( 202, 212 ) which are parallel to each other. An upper rigid plate ( 20 ) has opposed first and second surfaces ( 42, 52 ). The first surface ( 42 ) is affixed to the upper surface ( 202 ) of the elastomeric core. The second surface ( 52 ) is inclined relative to the first surface ( 42 ). A lower rigid plate ( 120 ) has opposed third and fourth surfaces ( 142, 152 ). The third surface ( 142 ) is affixed to the lower surface ( 212 ) of the elastomeric core ( 200 ) and extends parallel to the first surface ( 42 ). The fourth surface ( 152 ) is inclined relative to the third surface ( 142 ). The second and fourth surfaces ( 52, 152 ) are inclined relative to each other.
Inventors
- 👤 Hassan Serhan
- 👤 James Kuras
- 👤 Carl McMillin
- 👤 Maarten Persenaire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:15
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/3094; A61F2/30942; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30069; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30131; A61F2002/30182; A61F2002/30187; A61F2002/30199; A61F2002/30224; A61F2002/3023; A61F2002/30316; A61F2002/30535; A61F2002/30563; A61F2002/30574; A61F2/30767; A61F2002/30769; A61F2/30771; A61F2002/30795; A61F2002/30805; A61F2002/30878; A61F2002/30879; A61F2002/30884; A61F2002/30957; A61F2002/30967; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2230/0028; A61F2230/0034; A61F2230/0063; A61F2230/0069; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00389; A61F2310/00395; A61F2310/00407
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
153 words
A spinal disc prosthesis, comprising: a first plate having a superior surface and an inferior surface; a second plate; and an elastomeric core interposed between said first plate and said second plate, wherein said first plate has an outer peripheral edge portion, wherein said outer peripheral edge portion includes (i) a first rim extending from said superior surface and configured to define a first recess on said superior surface, (ii) a second rim extending from said inferior surface and configured to define a second recess on said inferior surface, and (iii) a flange interposed between a first plane defined by said superior surface and a second plane defined by said inferior surface, and wherein said flange has (i) an upper surface which is parallel to said first plane, (ii) a lower surface which is parallel to said upper surface, and (iii) a curved surface which connects said upper surface and said lower surface.
Claim 2
Dependent Claim
153 words
A spinal disc prosthesis, comprising: a first plate having a superior surface and an inferior surface; a second plate; and an elastomeric core interposed between said first plate and said second plate, wherein said first plate has an outer peripheral edge portion, wherein said outer peripheral edge portion includes (i) a first rim extending from said superior surface and configured to define a first recess on said superior surface, (ii) a second rim extending from said inferior surface and configured to define a second recess on said inferior surface, and (iii) a flange interposed between a first plane defined by said superior surface and a second plane defined by said inferior surface, and wherein said flange has (i) an upper surface which is parallel to said first plane, (ii) a lower surface which is parallel to said upper surface, and (iii) a curved surface which connects said upper surface and said lower surface.
Claim 3
Dependent Claim
47 words
The spinal disc prosthesis of claim 1 , wherein: said first rim is configured so that said first recess possesses a first depth, said second rim is configured so that said second recess possesses a second depth, and said second depth is greater than said first depth.
Claim 4
Dependent Claim
29 words
The spinal disc prosthesis of claim 1 , further comprising: a first porous coating located within said first recess, and a second porous coating located within said second recess.
Claim 5
Dependent Claim
31 words
The spinal disc prosthesis of claim 3 , wherein: said second porous coating is contained entirely within said second recess, and said first porous coating extends out of said first recess.
Claim 6
Dependent Claim
32 words
The spinal disc prosthesis of claim 1 , wherein said elastomeric core is positioned in contact with each of said lower surface of said flange and said curved surface of said flange.
Claim 7
Dependent Claim
19 words
The spinal disc prosthesis of claim 1 , wherein said second rim is spaced apart from said first rim.
Claim 8
Dependent Claim
18 words
The spinal disc prosthesis of claim 1 , wherein said first rim is spaced apart from said flange.
Claim 9
Dependent Claim
20 words
The spinal prosthesis of claim 1 , wherein said second plate possesses the same physical configuration as said first plate.
Claim 10
Dependent Claim
113 words
A spinal disc prosthesis, comprising: a first plate having a superior surface and an inferior surface; a second plate; and an elastomeric core interposed between said first plate and said second plate, wherein said first plate has an outer peripheral edge portion, and wherein said outer peripheral edge portion includes (i) a first rim extending from said superior surface and configured to define a first recess on said superior surface, (ii) a second rim extending from said inferior surface and configured to define a second recess on said inferior surface, and (iii) a flange interposed between a first plane defined by said superior surface and a second plane defined by said inferior surface.
Claim 11
Dependent Claim
113 words
A spinal disc prosthesis, comprising: a first plate having a superior surface and an inferior surface; a second plate; and an elastomeric core interposed between said first plate and said second plate, wherein said first plate has an outer peripheral edge portion, and wherein said outer peripheral edge portion includes (i) a first rim extending from said superior surface and configured to define a first recess on said superior surface, (ii) a second rim extending from said inferior surface and configured to define a second recess on said inferior surface, and (iii) a flange interposed between a first plane defined by said superior surface and a second plane defined by said inferior surface.
Claim 12
Dependent Claim
47 words
The spinal disc prosthesis of claim 9 , wherein: said first rim is configured so that said first recess possesses a first depth, said second rim is configured so that said second recess possesses a second depth, and said second depth is greater than said first depth.
Claim 13
Dependent Claim
29 words
The spinal disc prosthesis of claim 9 , further comprising: a first porous coating located within said first recess, and a second porous coating located within said second recess.
Claim 14
Dependent Claim
31 words
The spinal disc prosthesis of claim 11 , wherein: said second porous coating is contained entirely within said second recess, and said first porous coating extends out of said first recess.
Claim 15
Dependent Claim
48 words
The spinal disc prosthesis of claim 9 , wherein said flange has (i) an upper surface which is parallel to said first plane, (ii) a lower surface which is parallel to said upper surface, and (iii) a curved surface which connects said upper surface and said lower surface.
Claim 16
Dependent Claim
32 words
The spinal disc prosthesis of claim 13 , wherein said elastomeric core is positioned in contact with each of said lower surface of said flange and said curved surface of said flange.
Claim 17
Dependent Claim
20 words
The spinal prosthesis of claim 9 , wherein said second plate possesses the same physical configuration as said first plate.
Claim 18
Dependent Claim
150 words
A spinal disc prosthesis, comprising: a first plate having a superior surface and an inferior surface; a second plate; and an elastomeric core interposed between said first plate and said second plate, wherein said first plate has an outer peripheral edge portion, wherein said outer peripheral edge portion includes (i) a first rim extending from said superior surface and configured to define a first recess on said superior surface, (ii) a second rim extending from said inferior surface and configured to define a second recess on said inferior surface, and (iii) a flange interposed between a first plane defined by said superior surface and a second plane defined by said inferior surface, said first rim is configured so that said first recess possesses a first depth, said second rim is configured so that said second recess possesses a second depth, and said second depth is greater than said first depth.
Claim 19
Dependent Claim
150 words
A spinal disc prosthesis, comprising: a first plate having a superior surface and an inferior surface; a second plate; and an elastomeric core interposed between said first plate and said second plate, wherein said first plate has an outer peripheral edge portion, wherein said outer peripheral edge portion includes (i) a first rim extending from said superior surface and configured to define a first recess on said superior surface, (ii) a second rim extending from said inferior surface and configured to define a second recess on said inferior surface, and (iii) a flange interposed between a first plane defined by said superior surface and a second plane defined by said inferior surface, said first rim is configured so that said first recess possesses a first depth, said second rim is configured so that said second recess possesses a second depth, and said second depth is greater than said first depth.
Claim 20
Dependent Claim
29 words
The spinal disc prosthesis of claim 16 , further comprising: a first porous coating located within said first recess, and a second porous coating located within said second recess.
Claim 21
Dependent Claim
31 words
The spinal disc prosthesis of claim 17 , wherein: said second porous coating is contained entirely within said second recess, and said first porous coating extends out of said first recess.
Claim 22
Dependent Claim
29 words
The spinal disc prosthesis of claim 16 , wherein: said second rim is spaced apart from said first rim, and said first rim is spaced apart from said flange.
Claim 23
Dependent Claim
20 words
The spinal prosthesis of claim 16 , wherein said second plate possesses the same physical configuration as said first plate.
References Cited (Backward Citations)
US4932969A
Cited
US4714469A
Cited
US4863477A
Cited
US4917704A
Cited
US5258043A
Cited
US4997432A
Cited
US4911718A
Cited
US5522899A
Cited
US5545229A
Cited
US5071437A
Cited
WO1990011740A1
Cited
US5306308A
Cited
WO1991005521A1
Cited
US5458643A
Cited
EP0538183A1
Cited
US5320644A
Cited
US5556431A
Cited
EP0566810A1
Cited
US5370697A
Cited
US5683464A
Cited
US5306309A
Cited
EP0577178A1
Cited
WO1994012123A1
Cited
EP0599419A2
Cited
US5534029A
Cited
US5534030A
Cited
EP0610837A1
Cited
FR2703580A1
Cited
WO1995000082A1
Cited
US5702450A
Cited
US5716415A
Cited
US5397364A
Cited
US5514180A
Cited
US5480444A
Cited
WO1997020526A1
Cited
US5683465A
Cited
US5824094A
Cited
US6139579A
Cited
US6348071B1
Cited
US6162252A
Cited
US20010016773A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-12-29 | 2007-06-30 | 2007-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-29 | 2011-06-30 | 2011-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-29 | 2015-06-30 | 2015-12-30 | $7700.00 | Window Closed / Lapsed |