Patent US6770095B2 successfully refreshed from Google Patents.
US6770095B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intervertebral disc
Assignee: DePuy Spine LLC
•
Filing: 2002-06-18
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Granted: 2004-08-03
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Expires: 2022-06-18
Abstract
Abstract This invention relates to an intervertebral motion disc having an articulation interface and a locking interface.
Inventors
- 👤 Alexander Grinberg
- 👤 Michael D. Sorrenti
- 👤 Andrew Dooris
- 👤 Melissa Grace
- 👤 Missoum Moumene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:59
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/4425; A61F2/30767; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30092; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30113; A61F2002/30125; A61F2002/30133; A61F2002/30138; A61F2002/30153; A61F2002/30154; A61F2002/30158; A61F2002/30182; A61F2002/30187; A61F2002/30199; A61F2002/30299; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30362; A61F2002/30364; A61F2002/30369; A61F2002/3037; A61F2002/30372; A61F2002/30405; A61F2002/30462; A61F2002/30476; A61F2002/305; A61F2002/30518; A61F2002/30528; A61F2002/30535; A61F2002/30563; A61F2002/30576; A61F2002/30578; A61F2002/30621; A61F2002/30649; A61F2002/30662; A61F2/30771; A61F2002/30841; A61F2002/30843; A61F2002/443; A61F2210/00; A61F2210/0014; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0006; A61F2230/0008; A61F2230/0015; A61F2230/0017; A61F2230/0019; A61F2230/0021; A61F2230/0026; A61F2230/0028; A61F2230/0034; A61F2230/0063; A61F2230/0093; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00029; A61F2310/00389; A61F2310/00574; A61F2310/0058; A61F2310/00592; A61F2310/00856; A61F2310/0088
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
236 words
A motion disc comprising: a) a first prosthetic vertebral endplate having i) an outer surface adapted to mate with a first vertebral body, ii) an inner surface comprising a first articulation surface, iii) a first body portion between the inner and outer surfaces of the first prosthetic vertebral endplate wherein the inner surface of the first prosthetic vertebral endplate has a recess extending therefrom into the first body portion and forming a first locking surface and a first articulation surface, and b) a second prosthetic vertebral endplate having i) an outer surface adapted to mate with a second vertebral body, ii) an inner surface comprising a second articulation surface, iii) a second body portion between the inner and outer surfaces of the second prosthetic vertebral endplate, wherein the inner surface of the second prosthetic vertebral endplate has a recess extending therefrom into the second body portion and forming a second locking surface and a second articulation surface, and c) a connector comprising a shank and first and second end portions, wherein the first end portion of the connector comprises a first locking surface and a first articulation surface, and wherein the second end portion of the connector comprises a second locking surface and a second articulation surface, wherein the first and second articulation surfaces are adapted to form an articulating interface, and wherein the first and second locking surfaces are adapted to form a locking interface.
Claim 2
Dependent Claim
236 words
A motion disc comprising: a) a first prosthetic vertebral endplate having i) an outer surface adapted to mate with a first vertebral body, ii) an inner surface comprising a first articulation surface, iii) a first body portion between the inner and outer surfaces of the first prosthetic vertebral endplate wherein the inner surface of the first prosthetic vertebral endplate has a recess extending therefrom into the first body portion and forming a first locking surface and a first articulation surface, and b) a second prosthetic vertebral endplate having i) an outer surface adapted to mate with a second vertebral body, ii) an inner surface comprising a second articulation surface, iii) a second body portion between the inner and outer surfaces of the second prosthetic vertebral endplate, wherein the inner surface of the second prosthetic vertebral endplate has a recess extending therefrom into the second body portion and forming a second locking surface and a second articulation surface, and c) a connector comprising a shank and first and second end portions, wherein the first end portion of the connector comprises a first locking surface and a first articulation surface, and wherein the second end portion of the connector comprises a second locking surface and a second articulation surface, wherein the first and second articulation surfaces are adapted to form an articulating interface, and wherein the first and second locking surfaces are adapted to form a locking interface.
Claim 3
Dependent Claim
35 words
The disc of claim 1 wherein the inner surface of the first prosthetic vertebral endplate has a projection extending therefrom, and the locking surface of the first prosthetic vertebral endplate is formed on the projection.
Claim 4
Dependent Claim
14 words
The disc of claim 2 wherein the projection extends from the first articulation surface.
Claim 5
Dependent Claim
28 words
The disc of claim 2 wherein the inner surface of the first prosthetic vertebral endplate further comprises a non-articulating surface, and the projection extends from the non-articulating surface.
Claim 6
Dependent Claim
20 words
The disc of claim 4 wherein the non-articulating surface is disposed upon the inner surface peripherally to the articulating surface.
Claim 7
Dependent Claim
38 words
The disc of claim 2 wherein the projection comprises a shank having a diameter and an enlarged end portion having a diameter, and the diameter of the enlarged end portion is greater than the diameter of the shank.
Claim 8
Dependent Claim
25 words
The disc of claim 6 wherein the articulation surface of the first prosthetic vertebral endplate is formed on the enlarged end portion of the projection.
Claim 9
Dependent Claim
19 words
The disc of claim 7 wherein the articulation surface forms an arc of between 5 degrees and 15 degrees.
Claim 10
Dependent Claim
52 words
The disc of claim 1 further comprising a sidewall disposed between the inner and outer surfaces of the first prosthetic vertebral endplate, and wherein the sidewall of the first prosthetic vertebral endplate has a projection extending therefrom, and the locking surface of the first prosthetic vertebral endplate is formed on the projection.
Claim 11
Dependent Claim
29 words
The disc of claim 2 wherein the first prosthetic vertebral endplate is an upper prosthetic vertebral endplate, and the second prosthetic vertebral endplate is a lower prosthetic vertebral endplate.
Claim 12
Dependent Claim
12 words
The disc of claim 10 wherein the first articulation surface is convex.
Claim 13
Dependent Claim
12 words
The disc of claim 10 wherein the first articulation surface is concave.
Claim 14
Dependent Claim
29 words
The disc of claim 2 wherein the first prosthetic vertebral endplate is a lower prosthetic vertebral endplate, and the second prosthetic vertebral endplate is an upper prosthetic vertebral endplate.
Claim 15
Dependent Claim
12 words
The disc of claim 13 wherein the first articulation surface is convex.
Claim 16
Dependent Claim
12 words
The disc of claim 13 wherein the first articulation surface is concave.
Claim 17
Dependent Claim
56 words
The disc of claim 1 further comprising a body portion between the inner and outer surfaces of the first prosthetic vertebral endplate, wherein the inner surface of the second prosthetic vertebral endplate has a recess extending therefrom into the body portion, and the locking surface of the second prosthetic vertebral endplate is formed in the recess.
Claim 18
Dependent Claim
14 words
The disc of claim 16 wherein the recess extends from the second articulation surface.
Claim 19
Dependent Claim
28 words
The disc of claim 16 wherein the inner surface of the second prosthetic vertebral endplate further comprises a non-articulating surface, and the recess extends from the non-articulating surface.
Claim 20
Dependent Claim
20 words
The disc of claim 18 wherein the non-articulating surface is disposed upon the inner surface peripherally to the articulating surface.
Claim 21
Dependent Claim
38 words
The disc of claim 16 wherein the recess comprises a shallow portion having a diameter and a deep portion having a diameter, and the diameter of the deep portion is greater than the diameter of the shallow portion.
Claim 22
Dependent Claim
24 words
The disc of claim 20 wherein the articulation surface of the second prosthetic vertebral endplate is formed on the deep portion of the recess.
Claim 23
Dependent Claim
25 words
The disc of claim 21 wherein the articulation surface of the second prosthetic vertebral endplate forms an arc of between 5 degrees and 15 degrees.
Claim 24
Dependent Claim
56 words
The disc of claim 16 further comprising a sidewall disposed between the inner and outer surfaces of the second prosthetic vertebral endplate, and wherein the sidewall of the second prosthetic vertebral endplate has a recess extending therefrom into the body portion, and the locking surface of the second prosthetic vertebral endplate is formed in the recess.
Claim 25
Dependent Claim
87 words
The disc of claim 1 further comprising a body portion between the inner and outer surfaces of the second prosthetic vertebral endplate, wherein the inner surface of the second prosthetic vertebral endplate has a recess extending therefrom into the body portion, and the locking surface of the second prosthetic vertebral endplate is formed in the recess, and wherein the inner surface of the first prosthetic vertebral endplate has a projection extending therefrom, and the locking surface of the first prosthetic vertebral endplate is formed on the projection.
Claim 26
Dependent Claim
71 words
The disc of claim 24 wherein the projection comprises a shank having a diameter and an enlarged end portion having a diameter, and the diameter of the enlarged end portion is greater than the diameter of the shank, and the recess comprises a shallow portion having a diameter and a deep portion having a diameter, and the diameter of the deep portion is greater than the diameter of the shallow portion.
Claim 27
Dependent Claim
31 words
The disc of claim 25 wherein the diameter of the enlarged end portion of the projection is between 25% and 75% of the diameter of the deep portion of the recess.
Claim 28
Dependent Claim
29 words
The disc of claim 25 wherein the diameter of the shank of the projection is between 25% and 75% of the diameter of the shallow portion of the recess.
Claim 29
Dependent Claim
32 words
The disc of claim 25 wherein the diameter of the deep portion of the recess is between 1.1 and 3 times greater than the diameter of the shallow portion of the recess.
Claim 30
Dependent Claim
29 words
The disc of claim 25 wherein the diameter of the shank of the projection is 25% to 99% of the diameter of the enlarged end portion of the projection.
Claim 31
Dependent Claim
17 words
The disc of claim 24 wherein the projection is integrally connected to the first prosthetic vertebral endplate.
Claim 32
Dependent Claim
51 words
The disc of claim 24 wherein the projection extends from the first articulation surface, and wherein the inner surface of the first prosthetic vertebral endplate has a surface area, and the first articulation surface comprises at least 80% of the surface area of a footprint of the first prosthetic vertebral endplate.
Claim 33
Dependent Claim
17 words
The disc of claim 24 wherein the enlarged end portion of the projection forms a rectangular shape.
Claim 34
Dependent Claim
17 words
The disc of claim 24 wherein the enlarged end portion of the projection comprises a threaded portion.
Claim 35
Dependent Claim
16 words
The disc of claim 24 wherein the enlarged end portion of the projection forms an anchor.
Claim 36
Dependent Claim
17 words
The disc of claim 24 wherein the enlarged end portion of the projection comprises a flexible tab.
Claim 37
Dependent Claim
17 words
The disc of claim 24 wherein the enlarged end portion of the projection comprises a memory metal.
Claim 38
Dependent Claim
105 words
The disc of claim 1 further comprising a first sidewall disposed between the inner and outer surfaces of the first prosthetic vertebral endplate, and wherein the first sidewall of the first prosthetic vertebral endplate has a first projection extending therefrom, and the locking surface of the first prosthetic vertebral endplate is formed on the first projection, and a second sidewall disposed between the inner and outer surfaces of the second prosthetic vertebral endplate, and wherein the second sidewall of the second prosthetic vertebral endplate has a projection extending therefrom, and the locking surface of the second prosthetic vertebral endplate is formed on the second projection.
Claim 39
Dependent Claim
44 words
The disc of claim 1 wherein the locking surface of the first prosthetic vertebral endplate faces a first direction, and the articulation surface of the first prosthetic vertebral endplate faces in a second direction, and the first direction is substantially opposite the second direction.
Claim 40
Dependent Claim
46 words
The disc of claim 1 wherein the first prosthetic vertebral endplate further comprises a tab extending therefrom and forming a vertically-disposed distal portion forming a pair of tongues, each tongue having a hole therethrough for reception of a fastener, wherein the tongues form a nest therebetween.
Claim 41
Dependent Claim
27 words
The disc of claim 1 wherein the outer surface of the first prosthetic vertebral endplate comprises at least one projection extending therefrom and having a pyramid shape.
References Cited (Backward Citations)
EP0282161A1
Cited
US5507816A
Cited
US5370697A
Cited
US5676701A
Cited
US5881802A
Cited
US5683465A
Cited
US5895428A
Cited
US6679915B1
Cited
US6063121A
Cited
US6113637A
Cited
US6039763A
Cited
US6527804B1
Cited
US6368350B1
Cited
US6669730B2
Cited
US20030216810A1
Cited
US6645249B2
Cited
US20030135278A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-08-03 | 2008-02-02 | 2008-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-08-03 | 2012-02-02 | 2012-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-08-03 | 2016-02-02 | 2016-08-03 | $7700.00 | Window Closed / Lapsed |