US20040143334A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial disc replacements (ADRS) with features to enhance longevity and prevent extrusion
Assignee: Individual
•
Filing: 2004-01-08
•
Granted: —
•
Expires: 2024-01-08
Abstract
Abstract Artificial disc replacement (ADR) components allow the use of thicker spacer components, with the goal being to extend the life of the ADR. Various embodiments also tether components within the disc space to prevent extrusion.
Inventors
- 👤 Bret Ferree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:57
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/4425; A61F2002/30001; A61F2002/30108; A61F2002/30199; A61F2002/302; A61F2002/30316; A61F2002/30329; A61F2002/30462; A61F2002/30476; A61F2002/30514; A61F2002/30535; A61F2002/30563; A61F2002/30576; A61F2002/30581; A61F2002/30584; A61F2/30767; A61F2/30771; A61F2002/30841; A61F2002/3085; A61F2002/443; A61F2220/00; A61F2220/0025; A61F2220/0075; A61F2230/00; A61F2230/0063; A61F2230/0065
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
61 words
1 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: an endplate affixed to one of the vertebral bodies; a disc spacer situated between the endplate and the other one of the vertebral bodies; and wherein the endplate includes a central region which is thinned or perforated to permit the use of a thicker disc spacer.
Claim 2
Dependent Claim
61 words
1 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: an endplate affixed to one of the vertebral bodies; a disc spacer situated between the endplate and the other one of the vertebral bodies; and wherein the endplate includes a central region which is thinned or perforated to permit the use of a thicker disc spacer.
Claim 3
Dependent Claim
14 words
2 . The ADR of claim 1 , wherein the disc spacer is compressible.
Claim 4
Dependent Claim
20 words
3 . The ADR of claim 1 , further including a member coupling the disc spacer to an annulus fibrosis.
Claim 5
Dependent Claim
20 words
4 . The ADR of claim 1 , further including a member coupling the disc spacer to a vertebral body.
Claim 6
Dependent Claim
19 words
5 . The ADR of claim 1 , further including a member coupling the disc spacer to the endplate.
Claim 7
Dependent Claim
29 words
6 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: a disc spacer; and a member coupling the disc spacer to an annulus fibrosis.
Claim 8
Dependent Claim
29 words
6 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: a disc spacer; and a member coupling the disc spacer to an annulus fibrosis.
Claim 9
Dependent Claim
31 words
7 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: a disc spacer; and a member coupling the disc spacer to one of the vertebral bodies.
Claim 10
Dependent Claim
31 words
7 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: a disc spacer; and a member coupling the disc spacer to one of the vertebral bodies.
Claim 11
Dependent Claim
37 words
8 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: a disc spacer; an endplate affixed to one of the vertebral bodies; and a member coupling the disc spacer to the endplate.
Claim 12
Dependent Claim
37 words
8 . An artificial disc replacement (ADR) situated between upper and lower vertebral bodies, comprising: a disc spacer; an endplate affixed to one of the vertebral bodies; and a member coupling the disc spacer to the endplate.
References Cited (Backward Citations)
US4759766A
Cited
US5314477A
Cited
US5192326A
Cited
US5507816A
Cited
US5258031A
Cited
US5425773A
Cited
US5562738A
Cited
US5401269A
Cited
US5556431A
Cited
US5534029A
Cited
US5676701A
Cited
US6001130A
Cited
US5865846A
Cited
US6156067A
Cited
US5674296A
Cited
US5574295A
Cited
US5895428A
Cited
US5800549A
Cited
US6146421A
Cited
US6228118B1
Cited
US5888226A
Cited
US5899941A
Cited
US6113637A
Cited
US6368350B1
Cited
US6416551B1
Cited
US6881228B2
Cited
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