US20080004707A1
Active / In Force
US
⏱️ 0.9 years remaining
Prosthetic nucleus apparatus and method
Assignee: Individual
•
Filing: 2007-09-07
•
Granted: —
•
Expires: 2027-09-07
Abstract
Abstract Prosthetic nucleus apparatus and methods for treating an intervertebral disc are disclosed. Prosthetic nucleus apparatus may include a barrier sealant membrane and a prosthetic nucleus material. The barrier sealant membrane forms a chamber which can receive the prosthetic nucleus material. The barrier sealant membrane can be formed by depositing a layer of material on a tissue surface within a de-nucleated space within an intervertebral disc. The prosthetic nucleus material may be positioned within the chamber of the barrier sealant membrane after the barrier sealant membrane is deposited within the de-nucleated space. The barrier sealant membrane and the prosthetic nucleus material may be positioned within a patient through an axial trans-sacral bore. A plug may also be included to prevent expulsion of the barrier sealant membrane and prosthetic nucleus material.
Inventors
- 👤 Andrew Cragg
- 👤 Robert Assell
- 👤 Bradley Wessman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:08
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/441; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61B17/8802; A61B17/8805; A61B17/8811; A61F2/442; A61F2/46; A61F2/4603; A61F2/4611; A61F2/28; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30069; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30535; A61F2002/30581; A61F2002/30583; A61F2002/30588; A61F2/30767; A61F2/30771; A61F2002/3085; A61F2002/444; A61F2002/4625; A61F2002/4627; A61F2210/00; A61F2210/0004; A61F2210/0085; A61F2230/00; A61F2230/0063; A61F2230/0069; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00359; A61F2310/00365; A61F2310/00377; A61F2310/00383
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
87 words
1 . A method for treating an at least partially de-nucleated intervertebral disc, comprising: boring a hole axially through a vertebral body using a trans sacral approach to access a nucleus pulposus of an intervertebral disc; removing at least a portion of the nucleus pulposus to define a de-nucleated space within the intervertebral disc space; depositing a barrier sealant membrane onto a tissue surface defining the de-nucleated space within an intervertebral disc; and deploying a prosthetic nucleus material into the chamber defined by the barrier sealant membrane.
Claim 2
Dependent Claim
87 words
1 . A method for treating an at least partially de-nucleated intervertebral disc, comprising: boring a hole axially through a vertebral body using a trans sacral approach to access a nucleus pulposus of an intervertebral disc; removing at least a portion of the nucleus pulposus to define a de-nucleated space within the intervertebral disc space; depositing a barrier sealant membrane onto a tissue surface defining the de-nucleated space within an intervertebral disc; and deploying a prosthetic nucleus material into the chamber defined by the barrier sealant membrane.
Claim 3
Dependent Claim
20 words
2 . A method, as in claim 1 , further comprising curing the barrier sealant membrane on the tissue surface.
Claim 4
Dependent Claim
20 words
3 . A method, as in claim 1 , further comprising bonding the barrier sealant membrane to the tissue surface.
Claim 5
Dependent Claim
34 words
4 . A method, as in claim 3 , further comprising the barrier sealant membrane including an agent to contact the tissue surface and to bond the barrier sealant membrane to the tissue surface.
Claim 6
Dependent Claim
26 words
5 . A method, as in claim 1 , further comprising, the barrier sealant membrane and prosthetic nucleus material comprise materials which are insoluble and non-degradable.
Claim 7
Dependent Claim
19 words
6 . A method, as in claim 1 , wherein said barrier sealant membrane comprises materials which are bioabsorbable.
Claim 8
Dependent Claim
19 words
7 . A method, as in claim 1 , wherein said barrier sealant membrane comprises materials which are non-degradable.
Claim 9
Dependent Claim
21 words
8 . A method, as in claim 1 , wherein said prosthetic nucleus material comprises materials which are insoluble and non-degradable.
Claim 10
Dependent Claim
23 words
9 . A method, as in claim 1 , wherein said barrier sealant membrane and said prosthetic nucleus material comprises the same materials.
Claim 11
Dependent Claim
21 words
10 . A method, as in claim 1 , wherein said barrier sealant membrane and said prosthetic nucleus material comprises silicone.
Claim 12
Dependent Claim
30 words
11 . A method, as in claim 1 , wherein said barrier sealant membrane is deposited within the de-nucleated space through an axial bore through one or more inferior vertebrae.
Claim 13
Dependent Claim
17 words
12 . A method, as in claim 1 , wherein the barrier sealant membrane comprises a hydrogel.
Claim 14
Dependent Claim
18 words
13 . A method, as in claim 12 , wherein said hydrogel comprises polyvinyl alcohol and polyvinyl pyrrolidone.
Claim 15
Dependent Claim
15 words
14 . A method, as in claim 12 , wherein said hydrogel comprises polyethylene glycol.
Claim 16
Dependent Claim
15 words
15 . A method, as in claim 12 , wherein said hydrogel comprises polyvinyl pyrrolidone.
Claim 17
Dependent Claim
18 words
16 . A method, as in claim 1 , wherein said barrier sealant membrane comprises an elastomeric material.
Claim 18
Dependent Claim
16 words
17 . A method, as in claim 16 , wherein said elastomeric material comprises a silicone.
Claim 19
Dependent Claim
16 words
18 . A method, as in claim 16 , wherein said elastomeric material comprises a polyurethane.
Claim 20
Dependent Claim
24 words
19 . A method, as in claim 1 , wherein said barrier sealant membrane comprises a blend of an elastomeric material and a hydrogel.
Claim 21
Dependent Claim
18 words
20 . A method, as in claim 1 , wherein said prosthetic nucleus material comprises an elastomeric material.
Claim 22
Dependent Claim
16 words
21 . A method, as in claim 20 , wherein said elastomeric material comprises a silicone.
Claim 23
Dependent Claim
16 words
22 . A method, as in claim 20 , wherein said elastomeric material comprises a polyurethane.
Claim 24
Dependent Claim
17 words
23 . A method, as in claim 1 , wherein said prosthetic nucleus material comprises a hydrogel.
Claim 25
Dependent Claim
18 words
24 . A method, as in claim 23 , wherein said hydrogel comprises polyvinyl alcohol and polyvinyl pyrrolidone.
Claim 26
Dependent Claim
15 words
25 . A method, as in claim 23 , wherein said hydrogel comprises polyethylene glycol.
Claim 27
Dependent Claim
15 words
26 . A method, as in claim 23 , wherein said hydrogel comprises polyvinyl pyrrolidone.
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