US6520992B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Utilization of an autopolymerizing organosiloxane-based compound
Assignee: Clariance SAS
•
Filing: 1999-04-21
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Granted: 2003-02-18
•
Expires: 2019-04-21
Abstract
Abstract The invention relates to a liquid or pasty organosiloxane based composition autopolymerizing into a permanently elastic silicon at ambient temperature. This composition is used for producing intervertebral disc implants that restore to a large extent the physiological range of movement of the intervertebral discs.
Inventors
- 👤 Jan Zollner
- 👤 Peer Eysel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:03
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/14; A61L27/18; A61L2430/00; A61L2430/38; Y; Y10; Y10S; Y10S606/00; Y10S606/907; Y10S606/91; Y10S623/00; Y10S623/901
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
87 words
A method for producing an intervertebral disc implant for improving the physiological amount of movement in an intervertebral disc damaged by degenerative changes, the method comprising: removing the gel-like inner zone from the annulus fibrosus of the intervertebral disc to form a space, introducing a hydrophobic, noble metal catalyst selected from Group VIII containing self-polymerizable fluid or pasty organosiloxane-based composition into the space; and permitting at ambient temperature the composition to self-polymerize to a permanently elastic silicone which completely fills the hollow space within the annulus fibrosus.
Claim 2
Independent Claim
87 words
A method for producing an intervertebral disc implant for improving the physiological amount of movement in an intervertebral disc damaged by degenerative changes, the method comprising: removing the gel-like inner zone from the annulus fibrosus of the intervertebral disc to form a space, introducing a hydrophobic, noble metal catalyst selected from Group VIII containing self-polymerizable fluid or pasty organosiloxane-based composition into the space; and permitting at ambient temperature the composition to self-polymerize to a permanently elastic silicone which completely fills the hollow space within the annulus fibrosus.
Claim 3
Dependent Claim
17 words
A method according to claim 1 , wherein the intervertebral disc implant is a nucleus pulposus implant.
Claim 4
Dependent Claim
14 words
A method according to claim 1 , wherein the composition is based on dimethylsiloxane.
Claim 5
Dependent Claim
14 words
A method according to claim 1 , wherein the composition includes a platinum catalyst.
Claim 6
Dependent Claim
14 words
A method according to claim 2 , wherein the composition includes a platinum catalyst.
Claim 7
Dependent Claim
14 words
A method according to claim 3 , wherein the composition includes a platinum catalyst.
Claim 8
Dependent Claim
18 words
A method according to claim 4 , wherein the composition is based on hydride-functional siloxanes and vinyl-functional siloxanes.
Claim 9
Dependent Claim
18 words
A method according to claim 5 , wherein the composition is based on hydride-functional siloxanes and vinyl-functional siloxanes.
Claim 10
Dependent Claim
19 words
A method according to claim 6 , wherein the composition is based on hydride-functional siloxanes and vinyl functional siloxanes.
Claim 11
Dependent Claim
12 words
A method according to claim 2 , further comprising sterilizing the composition.
Claim 12
Dependent Claim
12 words
A method according to claim 3 , further comprising sterilizing the composition.
Claim 13
Dependent Claim
12 words
A method according to claim 4 , further comprising sterilizing the composition.
Claim 14
Dependent Claim
12 words
A method according to claim 5 , further comprising sterilizing the composition.
Claim 15
Dependent Claim
12 words
A method according to claim 6 , further comprising sterilizing the composition.
Claim 16
Dependent Claim
12 words
A method according to claim 7 , further comprising sterilizing the composition.
Claim 17
Dependent Claim
12 words
A method according to claim 8 , further comprising sterilizing the composition.
Claim 18
Dependent Claim
12 words
A method according to claim 9 , further comprising sterilizing the composition.
Claim 19
Dependent Claim
12 words
A method according to claim 1 , wherein the composition is sterile.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-02-17 | 2006-08-19 | 2007-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-17 | 2010-08-19 | 2011-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-17 | 2014-08-19 | 2015-02-18 | $7700.00 | Window Closed / Lapsed |