Patent US5941880A successfully refreshed from Google Patents.
US5941880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling member for cross-linking intervertebral cage devices
Assignee: K2M Inc
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Filing: 1998-01-02
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Granted: 1999-08-24
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Expires: 2018-01-02
Abstract
Abstract A cross-linking member for rigidly coupling interbody fusion devices such that they have reduced tendencies to dislocate subsequent to implantation as well as an interbody fusion assembly which includes at least two interbody fusion devices rigidly coupled together by a cross-linking member.
Inventors
- 👤 Joseph P. Errico
- 👤 Thomas J. Errico
- 👤 James D. Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/446; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7059; A61F2/30721; A61F2/30744; A61F2/442; A61F2/28; A61F2002/2835; A61F2002/30001; A61F2002/30316; A61F2002/30329; A61F2002/30433; A61F2002/30476; A61F2002/30507; A61F2002/30535; A61F2002/30593; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/3085; A61F2002/448; A61F2220/00; A61F2220/0025; A61F2220/0041
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
108 words
An interbody fusion assembly comprising: at least two interbody fusion implant devices having first and second axial ends, said first axial ends of each including an axial hole therein which hole is threaded and an axially curvate engaging contour; a flat elongate member having at least two corresponding through holes for coupling said member to corresponding interbody fusion implant devices at said through holes, and a surface thereof having a corresponding nesting curvate engaging contour suited to engage said engaging contour of said at least two interbody fusion implant devices; and means for coupling said member to said at least two interbody fusion devices at said through holes.
Claim 2
Dependent Claim
108 words
An interbody fusion assembly comprising: at least two interbody fusion implant devices having first and second axial ends, said first axial ends of each including an axial hole therein which hole is threaded and an axially curvate engaging contour; a flat elongate member having at least two corresponding through holes for coupling said member to corresponding interbody fusion implant devices at said through holes, and a surface thereof having a corresponding nesting curvate engaging contour suited to engage said engaging contour of said at least two interbody fusion implant devices; and means for coupling said member to said at least two interbody fusion devices at said through holes.
Claim 3
Dependent Claim
36 words
The interbody fusion assembly as set forth in claim 1, wherein said means for coupling said member to said at least two interbody fusion devices at said trough holes comprises at least two corresponding set screws.
Claim 4
Dependent Claim
22 words
The interbody fusion assembly as set forth in claim 1, wherein said axially curvate contour of said coupling member is axially concave.
Claim 5
Dependent Claim
22 words
The interbody fusion assembly as set forth in claim 1, wherein said axially curvate contour of said coupling member is axially convex.
Claim 6
Dependent Claim
48 words
The interbody fusion assembly as set forth in claim 1, wherein said engaging contour of said coupling member comprises axially aligned ridges and the engaging contour of said first ends of said at least two interbody fusion devices comprises a linear recess formed in said first ends contour.
Claim 7
Dependent Claim
38 words
The interbody fusion assembly as set forth in claim 1, wherein said means for rigidly coupling said coupling member to said at least two interbody fusion devices at said through holes comprises at least two corresponding set screws.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-23 | 2003-02-22 | 2003-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-23 | 2007-02-22 | 2007-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-23 | 2011-02-22 | 2011-08-24 | $7700.00 | Window Closed / Lapsed |