US6485518B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facet screw and bone allograft intervertebral support and fusion system
Assignee: Nuvasive Inc
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Filing: 2000-12-11
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Granted: 2002-11-26
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Expires: 2020-12-11
Abstract
Abstract An intervertebral support assembly, comprising a pair of bone allografts positioned between two adjacent vertebrae, the bone allografts being positioned towards the anterior portion of the adjacent vertebrae; and a pair of facet screws, each facet screw securing together a facet joint between the two adjacent vertebrae. A method of providing support between two adjacent vertebrae, comprising positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the front of the adjacent vertebrae; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws.
Inventors
- 👤 Bryan Cornwall
- 👤 James F. Marino
- 👤 Dan Ahlgren
- 👤 Troy Wooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:52
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7062; A61B17/7064; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/44; A61F2/4455; A61F2/46; A61F2/4603; A61F2/4611; A61F2/442; A61F2002/2835; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30057; A61F2/30767; A61F2/30771; A61F2002/3082; A61F2002/30827; A61F2002/30828; A61F2002/448; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/909
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
63 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws, wherein said facet screws are positioned in at least one of a transfacet and translaminar approach.
Claim 2
Independent Claim
63 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws, wherein said facet screws are positioned in at least one of a transfacet and translaminar approach.
Claim 3
Dependent Claim
25 words
The method of claim 1 , wherein each of the bone allografts are positioned adjacent to a curved outer perimeter of the two adjacent vertebrae.
Claim 4
Dependent Claim
18 words
The method of claim 1 , wherein the bone allografts are positioned at an angle to one another.
Claim 5
Dependent Claim
13 words
The method of claim 3 , wherein the angle is 30° to 160°.
Claim 6
Dependent Claim
14 words
The method of claim 3 , wherein the angle is approximately 90° to 120°.
Claim 7
Dependent Claim
18 words
The method of claim 1 , further comprising: positioning autologous bone graft material posterolaterally behind the bone allografts.
Claim 8
Dependent Claim
23 words
The method of claim 1 , further comprising: positioning autologous bone graft material positioned between and to the rear of the bone allografts.
Claim 9
Dependent Claim
17 words
The method of claim 1 , further comprising: harvesting autologous bone graft material from an iliac crest.
Claim 10
Dependent Claim
25 words
The method of claim 1 , wherein each of the bone allografts are advanced into position between the two adjacent vertebrae through a percutaneous cannula.
Claim 11
Dependent Claim
16 words
The method of claim 9 , wherein the percutaneous cannula is disposed in a posterolateral approach.
Claim 12
Dependent Claim
16 words
The method of claim 9 , wherein the percutaneous cannula is positioned by a surgical guideframe.
Claim 13
Dependent Claim
24 words
The method of claim 1 , wherein each of the bone allografts are rotated by about 90° after insertion into the patient's intervertebral space.
Claim 14
Dependent Claim
44 words
The method of claim 1 , wherein a first bone allograft is advanced into position between the two adjacent vertebrae through a first percutaneous cannula and the second bone allograft is advanced into position between the two adjacent vertebrae through a second percutaneous cannula.
Claim 15
Dependent Claim
19 words
The method of claim 13 , wherein the first and second percutaneous cannulae are disposed in opposite posterolateral approaches.
Claim 16
Dependent Claim
22 words
The method of claim 1 , wherein the facet screws are advanced into contact with the facet joints through a percutaneous cannula.
Claim 17
Dependent Claim
16 words
The method of claim 15 , wherein the percutaneous cannula is positioned by a surgical guideframe.
Claim 18
Independent Claim
55 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae and at an angle to one another; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws.
Claim 19
Independent Claim
55 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae and at an angle to one another; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws.
Claim 20
Dependent Claim
13 words
The method of claim 17 , wherein the angle is 30° to 160°.
Claim 21
Dependent Claim
14 words
The method of claim 17 , wherein the angle is approximately 90° to 120°.
Claim 22
Independent Claim
58 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; securing together facet joints between the two adjacent vertebrae with a pair of facet screws; and positioning autologous bone graft material posterolaterally behind the bone allografts.
Claim 23
Independent Claim
58 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; securing together facet joints between the two adjacent vertebrae with a pair of facet screws; and positioning autologous bone graft material posterolaterally behind the bone allografts.
Claim 24
Independent Claim
63 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; securing together facet joints between the two adjacent vertebrae with a pair of facet screws; and positioning autologous bone graft material positioned between and to the rear of the bone allografts.
Claim 25
Independent Claim
63 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; securing together facet joints between the two adjacent vertebrae with a pair of facet screws; and positioning autologous bone graft material positioned between and to the rear of the bone allografts.
Claim 26
Independent Claim
57 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; securing together facet joints between the two adjacent vertebrae with a pair of facet screws; and harvesting autologous bone graft material from an iliac crest.
Claim 27
Independent Claim
57 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae; securing together facet joints between the two adjacent vertebrae with a pair of facet screws; and harvesting autologous bone graft material from an iliac crest.
Claim 28
Independent Claim
86 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae, wherein a first bone allograft is advanced into position between the two adjacent vertebrae through a first percutaneous cannula and the second bone allograft is advanced into position between the two adjacent vertebrae through a second percutaneous cannula; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws.
Claim 29
Independent Claim
86 words
A method of providing support between two adjacent vertebrae, comprising: positioning a pair of bone allografts between the two adjacent vertebrae at a location towards the anterior portion of the adjacent vertebrae, wherein a first bone allograft is advanced into position between the two adjacent vertebrae through a first percutaneous cannula and the second bone allograft is advanced into position between the two adjacent vertebrae through a second percutaneous cannula; and securing together facet joints between the two adjacent vertebrae with a pair of facet screws.
Claim 30
Dependent Claim
19 words
The method of claim 23 , wherein the first and second percutaneous cannulae are disposed in opposite posterolateral approaches.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-11-25 | 2006-05-27 | 2006-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-11-25 | 2010-05-27 | 2010-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-11-25 | 2014-05-27 | 2014-11-26 | $7700.00 | Window Closed / Lapsed |