US6336928B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for securing at least two vertebrae
Assignee: DePuy France SAS
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Filing: 1997-10-17
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Granted: 2002-01-08
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Expires: 2017-10-17
Abstract
Abstract Device for joining at least two vertebral bodies, which comprises at least one plate ( 1 ) equipped at each end with anchoring parts ( 1 a ) ( 1 b ) which can be introduced substantially vertically into seats previously established in the vertebral bodies to be joined, and then, after introduction, can be folded back at an angle towards one another in order to exert a constant compression of the vertebral bodies and to ensure perfect anchoring, wherein each anchoring part ( 1 a ) and ( 1 b ) is connected to the ends of the corresponding plate via a central connection zone ( 1 c) ( 1 d ) delimiting two profiled notches ( 1 c 1 ) ( 1 d 1 ) ( 1 c 2 ( 1 d 2 ) in order to permit deformation of the zone, in such a way that each pair of anchoring parts permits a compression, both at the level of the plate and at the level of its ends, and in such a way that the anchoring parts at each end of the plate permit a clamping which prevents any extraction.
Inventors
- 👤 Jean Guerin
- 👤 Roger Robert
- 👤 Michel Tremoulet
- 👤 Philippe Jourdan
- 👤 François San Galli
- 👤 Bertrand Gauneau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/809; A61B17/70; A61B17/7059; A61B17/8004; A61B17/064; A61B17/0642; A61B2017/00831; A61B2017/00867; A61B2017/0641
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
195 words
Device for joining at least two vertebral bodies, which comprises at least one plate ( 1 ) equipped at each end with anchoring parts ( 1 a ) ( 1 b ) which can be introduced substantially vertically into seats previously established in the vertebral bodies to be joined, and then, after introduction, can be folded back at an angle towards one another in order to exert a constant compression of the vertebral bodies and to ensure perfect anchoring, wherein each anchoring part ( 1 a ) and ( 1 b ) is connected to the ends of the corresponding plate via a central connection zone ( 1 c ) ( 1 d ) delimiting two profiled notches ( 1 c 1 ) ( 1 d 1 ) ( 1 c 2 ( 1 d 2 ) in order to permit deformation of the said zone, in such a way that each pair of anchoring parts permits a compression, both at the level of the plate and at the level of its ends, and in such a way that the anchoring parts at each end of the plate permit a clamping which prevents any extraction.
Claim 2
Dependent Claim
195 words
Device for joining at least two vertebral bodies, which comprises at least one plate ( 1 ) equipped at each end with anchoring parts ( 1 a ) ( 1 b ) which can be introduced substantially vertically into seats previously established in the vertebral bodies to be joined, and then, after introduction, can be folded back at an angle towards one another in order to exert a constant compression of the vertebral bodies and to ensure perfect anchoring, wherein each anchoring part ( 1 a ) and ( 1 b ) is connected to the ends of the corresponding plate via a central connection zone ( 1 c ) ( 1 d ) delimiting two profiled notches ( 1 c 1 ) ( 1 d 1 ) ( 1 c 2 ( 1 d 2 ) in order to permit deformation of the said zone, in such a way that each pair of anchoring parts permits a compression, both at the level of the plate and at the level of its ends, and in such a way that the anchoring parts at each end of the plate permit a clamping which prevents any extraction.
Claim 3
Dependent Claim
57 words
Device according to claim 1 , wherein each plate ( 1 ) and its anchoring parts ( 1 a ) and ( 1 b ) are made from a shape-memory material, which shape corresponds to a defined and stable geometric shape at body temperature and to another geometric shape at a temperature substantially lower than body temperature.
Claim 4
Dependent Claim
42 words
Device according to claim 2 , wherein at said lower temperature the anchoring parts ( 1 a ) and ( 1 b ) are arranged in a substantially vertical plane, whereas at body temperature the said parts are folded back and in.
Claim 5
Dependent Claim
25 words
Device according to claim 2 , which is made in one piece by being cut out from a metal plate and then treated shape memory.
Claim 6
Dependent Claim
34 words
Device according to claim 1 , wherein the plate ( 1 ) has a transverse curvature corresponding to a face of a vertebral body and a longitudinal curvature for adapting to a cervical lordoses.
Claim 7
Dependent Claim
21 words
Device according to claim 1 , wherein the plate ( 1 ) has at least one slot ( 1 h ).
Claim 8
Dependent Claim
20 words
Device according to claim 6 , wherein the said slot is designed or threaded for securing to a positioning ancillary.
Claim 9
Dependent Claim
25 words
Device according to claim 1 , wherein the plate ( 1 ) has intersomatic reliefs ( 1 i ) between the pairs of anchoring parts.
Claim 10
Dependent Claim
263 words
Device for joining at least two vertebral bodies, which comprises at least one plate ( 1 ) equipped at each end with anchoring parts ( 1 a ) ( 1 b ) which can be introduced substantially vertically into seats previously established in the vertebral bodies to be joined, and then, after introduction, can be folded back at an angle towards one another in order to exert a constant compression of the vertebral bodies and to ensure perfect anchoring, wherein each anchoring part ( 1 a ) and ( 1 b ) is connected to the ends of the corresponding plate via a central connection zone ( 1 c ) ( 1 d ) delimiting two profiled notches ( 1 c 1 ) ( 1 d ) ( 1 c 2 ( 1 d 2 ) in order to permit deformation of the said zone, in such a way that each pair of anchoring parts permits a compression, both at the level of the plate and at the level of its ends, and in such a way that the anchoring parts at each end of the plate permit a clamping which prevents any extraction, and wherein the anchoring parts ( 1 a ) ( 1 b ) comprise tabs ( 1 a 1 ) ( 1 a 2 ) ( 1 b 1 ) ( 1 b 2 ) which are connected at one of their ends via a common branch ( 1 e ) ( 1 f ) which comprise a central connection zone ( 1 c ) ( 1 d ).
Claim 11
Dependent Claim
263 words
Device for joining at least two vertebral bodies, which comprises at least one plate ( 1 ) equipped at each end with anchoring parts ( 1 a ) ( 1 b ) which can be introduced substantially vertically into seats previously established in the vertebral bodies to be joined, and then, after introduction, can be folded back at an angle towards one another in order to exert a constant compression of the vertebral bodies and to ensure perfect anchoring, wherein each anchoring part ( 1 a ) and ( 1 b ) is connected to the ends of the corresponding plate via a central connection zone ( 1 c ) ( 1 d ) delimiting two profiled notches ( 1 c 1 ) ( 1 d ) ( 1 c 2 ( 1 d 2 ) in order to permit deformation of the said zone, in such a way that each pair of anchoring parts permits a compression, both at the level of the plate and at the level of its ends, and in such a way that the anchoring parts at each end of the plate permit a clamping which prevents any extraction, and wherein the anchoring parts ( 1 a ) ( 1 b ) comprise tabs ( 1 a 1 ) ( 1 a 2 ) ( 1 b 1 ) ( 1 b 2 ) which are connected at one of their ends via a common branch ( 1 e ) ( 1 f ) which comprise a central connection zone ( 1 c ) ( 1 d ).
Claim 12
Dependent Claim
42 words
Device according to claim 9 , wherein each tab ( 1 a 1 ) ( 1 a 2 ) ( 1 b 1 ) ( 1 b 2 ) has on the inside a series of toothed spikes ( 1 g ).
Claim 13
Dependent Claim
37 words
Device according to claim 9 , the tabs each having a series of toothed spikes thereon, said spikes of each tab of each pair extending toward said spikes of the other tab of said pair of tabs.
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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) | 2005-01-07 | 2005-07-09 | 2006-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-01-07 | 2009-07-09 | 2010-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-01-07 | 2013-07-09 | 2014-01-08 | $7700.00 | Window Closed / Lapsed |