US7201776B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial intervertebral disc replacements with endplates
Assignee: RIVERBEND DESIGN LLC
•
Filing: 2002-11-25
•
Granted: 2007-04-10
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Expires: 2022-11-25
Abstract
Abstract An artificial disc replacement (ADR) includes a pair of opposing endplate components, each attached to one of the upper and lower vertebrae, a cushioning component disposed between the endplate components; and a filler material contained within the cushioning component. The filler material may be a gas, liquid, foam, or gel, including a hydrogel. In a preferred embodiment, the ADR may further include one or more opposing, spaced-apart projections configured to impinge if the endplate components are subjected to an excessive force. Such projections may allow for unrestricted motion between the endplates until impingement, or may restrict translation between the endplates until a greater excessive force is reached. One or both of the endplate components may include a modified surface to increase adherence to the respective vertebral endplates.
Inventors
- 👤 Bret A. Ferree
- 👤 David Tompkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:41
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/44; A61F2/441; A61F2/442; A61F2/4455; A61F2/446; A61F2/30767; A61F2/30771; A61F2/3094; A61F2/30965; A61F2/4465; A61F2/447; A61F2002/2835; A61F2002/2839; A61F2002/30001; A61F2002/30003; A61F2002/30004; A61F2002/30014; A61F2002/3006; A61F2002/30062; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30133; A61F2002/30199; A61F2002/30224; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30354; A61F2002/30357; A61F2002/30383; A61F2002/30405; A61F2002/30462; A61F2002/30476; A61F2002/30507; A61F2002/30535; A61F2002/30537; A61F2002/30546; A61F2002/30581; A61F2002/30584; A61F2002/30593; A61F2002/30621; A61F2002/30622; A61F2002/30772; A61F2002/30774; A61F2002/30777; A61F2002/30784; A61F2002/30785; A61F2002/3082; A61F2002/30827; A61F2002/30828; A61F2002/30841; A61F2002/3085; A61F2002/30878; A61F2002/30879; A61F2002/4435; A61F2002/448; A61F2210/00; A61F2210/0004; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2220/0075; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0015; A61F2230/0063; A61F2230/0069; A61F2250/00; A61F2250/0004; A61F2250/0012; A61F2250/0014; A61F2250/0018; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61L; A61L2430/00; A61L2430/38
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
55 words
An artificial disc replacement (ADR) configured for placement between upper and lower vertebrae, the ADR comprising: a pair of opposing endplate components, each attached to a respective one of the upper and lower vertebrae; a cushioning component disposed between the endplate components without being attached thereto; and a filler material contained within the cushioning component.
Claim 2
Dependent Claim
55 words
An artificial disc replacement (ADR) configured for placement between upper and lower vertebrae, the ADR comprising: a pair of opposing endplate components, each attached to a respective one of the upper and lower vertebrae; a cushioning component disposed between the endplate components without being attached thereto; and a filler material contained within the cushioning component.
Claim 3
Dependent Claim
17 words
The ADR of claim 1 , wherein the filler material is a gas, liquid, gel or foam.
Claim 4
Dependent Claim
13 words
The ADR of claim 1 , wherein the filler material is a hydrogel.
Claim 5
Dependent Claim
25 words
The ADR of claim 1 , wherein one or both of the endplate components include a modified surface to increase adherence to respective vertebral endplates.
Claim 6
Dependent Claim
15 words
The ADR of claim 4 , wherein the modified surface includes spikes or other projections.
Claim 7
Dependent Claim
29 words
The ADR of claim 4 , wherein the modified surface includes a projection that may be introduced externally and advanced to penetrate at least a portion of a vertebra.
Claim 8
Dependent Claim
20 words
The ADR of claim 4 , wherein the modified surface includes barbs that resist extrusion from the direction of insertion.
Claim 9
Dependent Claim
34 words
The ADR of claim 4 , wherein the modified surface includes deployable projections with retaining rings used to hold the projections together until forced into the vertebrae, at which time the projections spread apart.
Claim 10
Dependent Claim
34 words
The ADR of claim 4 , wherein the modified surface includes deployable projections with retaining rings used to hold the projections together until forced into the vertebrae, at which time the projections spread apart.
Claim 11
Dependent Claim
15 words
The ADR of claim 4 , wherein the modified surface is conducive to bony ingrowth.
Claim 12
Dependent Claim
27 words
The ADR of claim 1 , further including one or more opposing, spaced-apart projections configured to impinge if the endplate components are subjected to an excessive force.
Claim 13
Dependent Claim
17 words
The ADR of claim 11 , wherein the projections allow unrestricted motion between the endplates until impingement.
Claim 14
Dependent Claim
21 words
The ADR of claim 1 , wherein the projections restrict translation between the endplates until a greater excessive force is reached.
Claim 15
Dependent Claim
71 words
An artificial disc replacement (ADR) configured for placement between upper and lower vertebrae, the ADR comprising: a pair of opposing endplate components, each attached to one of the upper and lower vertebrae; a cushioning component disposed between the endplate components; a filler material contained within the cushioning component; and a rounded, centrally located projection on each endplate component configured to impinge if the endplate components are subjected to an excessive force.
Claim 16
Dependent Claim
71 words
An artificial disc replacement (ADR) configured for placement between upper and lower vertebrae, the ADR comprising: a pair of opposing endplate components, each attached to one of the upper and lower vertebrae; a cushioning component disposed between the endplate components; a filler material contained within the cushioning component; and a rounded, centrally located projection on each endplate component configured to impinge if the endplate components are subjected to an excessive force.
Claim 17
Dependent Claim
17 words
The ADR of claim 14 , wherein the projections allow unrestricted motion between the endplates until impingement.
Claim 18
Dependent Claim
21 words
The ADR of claim 14 , wherein the projections restrict translation between the endplates until a greater excessive force is reached.
Claim 19
Dependent Claim
17 words
The ADR of claim 14 , wherein the filler material is a gas, liquid, gel or foam.
Claim 20
Dependent Claim
13 words
The ADR of claim 14 , wherein the filler material is a hydrogel.
Claim 21
Dependent Claim
21 words
The ADR of claim 14 , wherein the endplate components include a modified surface to increase adherence to the respective vertebrae.
Claim 22
Dependent Claim
15 words
The ADR of claim 19 , wherein the modified surface includes spikes or other projections.
Claim 23
Dependent Claim
15 words
The ADR of claim 19 , wherein the modified surface is conducive to bony ingrowth.
Claim 24
Dependent Claim
29 words
The ADR of claim 19 , wherein the modified surface includes a projection that may be introduced externally and advanced to penetrate at least a portion of a vertebra.
Claim 25
Dependent Claim
20 words
The ADR of claim 19 , wherein the modified surface includes barbs that resist extrusion from the direction of insertion.
Claim 26
Dependent Claim
34 words
The ADR of claim 19 , wherein the modified surface includes deployable projections with retaining rings used to hold the projections together until forced into the vertebrae, at which time the projections spread apart.
Claim 27
Dependent Claim
34 words
The ADR of claim 19 , wherein the modified surface includes deployable projections with retaining rings used to hold the projections together until forced into the vertebrae, at which time the projections spread apart.
References Cited (Backward Citations)
US2677369A
Cited
US3366975A
Cited
US3426364A
Cited
US3551560A
Cited
US3593342A
Cited
US3648294A
Cited
US3855638A
Cited
US3867728A
Cited
US3883902A
Cited
US3875595A
Cited
US4229839A
Cited
US4349921A
Cited
US4309777A
Cited
US4707872A
Cited
US4759766A
Cited
US4657550A
Cited
US4663358A
Cited
US4932969A
Cited
US4878915A
Cited
US4714469A
Cited
US4863477A
Cited
US4917704A
Cited
US5258043A
Cited
US4772287A
Cited
US4904260A
Cited
US4946378A
Cited
US4874389A
Cited
US5035716A
Cited
US5002576A
Cited
US4911718A
Cited
US5015247A
Cited
US5609635A
Cited
US5171281A
Cited
US5545229A
Cited
US5026373A
Cited
US5071437A
Cited
US5108438A
Cited
US5314477A
Cited
US5171280A
Cited
US5192326A
Cited
US5047055A
Cited
US5693100A
Cited
US5123926A
Cited
US5192327A
Cited
US5464421A
Cited
US5320644A
Cited
US5258031A
Cited
US5425773A
Cited
US5401269A
Cited
US5556431A
Cited
US5370697A
Cited
US5375823A
Cited
US5292332A
Cited
US5246458A
Cited
US5336223A
Cited
US5534030A
Cited
US5534028A
Cited
US5702450A
Cited
US5645596A
Cited
US5674294A
Cited
US5711960A
Cited
US5514180A
Cited
US5458642A
Cited
US6187048B1
Cited
US5571192A
Cited
US5976186A
Cited
US5906616A
Cited
US5824093A
Cited
US5674296A
Cited
US5865846A
Cited
US6245072B1
Cited
US5645565A
Cited
US5645597A
Cited
US5814084A
Cited
US5865845A
Cited
US5683465A
Cited
US5702455A
Cited
US6045554A
Cited
US5964807A
Cited
US5716416A
Cited
US6090112A
Cited
US5800549A
Cited
US6022376A
Cited
US6261586B1
Cited
US5893889A
Cited
US5824094A
Cited
US5888226A
Cited
US5899941A
Cited
US6146420A
Cited
US6132465A
Cited
US5928284A
Cited
US6270528B1
Cited
US6200347B1
Cited
US6113639A
Cited
US6110210A
Cited
US6214050B1
Cited
US6402785B1
Cited
US20010020186A1
Cited
US6419704B1
Cited
US20010034553A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2010-04-09 | 2010-10-09 | 2011-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-04-09 | 2014-10-09 | 2015-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-04-09 | 2018-10-09 | 2019-04-10 | $7700.00 | Window Closed / Lapsed |