Patent SU1454423A1 successfully refreshed from Google Patents.
US20030074076A1
Expired / Lapsed
US
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Artificial intervertebral disc replacements with endplates
Assignee: RIVERBEND DESIGN LLC
•
Filing: 2002-11-25
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Granted: —
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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 Ferree
- 👤 David Tompkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:54
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
51 words
1 . 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; and a filler material contained within the cushioning component.
Claim 2
Dependent Claim
51 words
1 . 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; and a filler material contained within the cushioning component.
Claim 3
Dependent Claim
19 words
2 . The ADR of claim 1 , wherein the filler material is a gas, liquid, gel or foam.
Claim 4
Dependent Claim
15 words
3 . The ADR of claim 1 , wherein the filler material is a hydrogel.
Claim 5
Dependent Claim
27 words
4 . 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
17 words
5 . The ADR of claim 4 , wherein the modified surface includes spikes or other projections.
Claim 7
Dependent Claim
17 words
6 . The ADR of claim 4 , wherein the modified surface is conducive to bony ingrowth.
Claim 8
Dependent Claim
31 words
7 . 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 9
Dependent Claim
22 words
8 . The ADR of claim 4 , wherein the modified surface includes barbs that resist extrusion from the direction of insertion.
Claim 10
Dependent Claim
36 words
9 . 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
36 words
10 . 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 12
Dependent Claim
29 words
11 . 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
19 words
12 . The ADR of claim 11 , wherein the projections allow unrestricted motion between the endplates until impingement.
Claim 14
Dependent Claim
23 words
13 . The ADR of claim 1 , wherein the projections restrict translation between the endplates until a greater excessive force is reached.
Claim 15
Dependent Claim
70 words
14 . 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 one or more opposing, spaced-apart projections configured to impinge if the endplate components are subjected to an excessive force.
Claim 16
Dependent Claim
70 words
14 . 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 one or more opposing, spaced-apart projections configured to impinge if the endplate components are subjected to an excessive force.
Claim 17
Dependent Claim
19 words
15 . The ADR of claim 14 , wherein the projections allow unrestricted motion between the endplates until impingement.
Claim 18
Dependent Claim
23 words
16 . The ADR of claim 14 , wherein the projections restrict translation between the endplates until a greater excessive force is reached.
Claim 19
Dependent Claim
19 words
17 . The ADR of claim 14 , wherein the filler material is a gas, liquid, gel or foam.
Claim 20
Dependent Claim
15 words
18 . The ADR of claim 14 , wherein the filler material is a hydrogel.
Claim 21
Dependent Claim
23 words
19 . The ADR of claim 14 , wherein the endplate components include a modified surface to increase adherence to the respective vertebrae.
Claim 22
Dependent Claim
17 words
20 . The ADR of claim 19 , wherein the modified surface includes spikes or other projections.
Claim 23
Dependent Claim
17 words
21 . The ADR of claim 19 , wherein the modified surface is conducive to bony ingrowth.
Claim 24
Dependent Claim
31 words
22 . 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
22 words
23 . The ADR of claim 19 , wherein the modified surface includes barbs that resist extrusion from the direction of insertion.
Claim 26
Dependent Claim
36 words
24 . 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
36 words
25 . 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.
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