Patent US6524341B2 successfully refreshed from Google Patents.
US6524341B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescopic vertebral prosthesis
Assignee: Synthes USA LLC
•
Filing: 2001-04-13
•
Granted: 2003-02-25
•
Expires: 2021-04-13
Abstract
Abstract The present invention is directed to a vertebral bone prosthetic device comprising an interior body, provided with an outer surface and a first coupling element thereon, and an exterior hollow body with a bore therein extending along a central axis, with the interior body being configured and dimensioned to be slidably received by the exterior body along the central axis, and provided with an interior surface and an exterior surface, the interior surface having a groove. The device also comprises a fixation ring having inner and outer surfaces, with the inner surface having a second coupling element thereon. The fixation ring is configured and dimensioned to be received within the groove of the exterior body for rotational movement about the central axis of the exterior body. Rotation of the fixation ring results in engagement of the first and second coupling elements to thereby prevent relative sliding movement between the interior and exterior bodies. Also, the fixation ring is rotatable between first second positions, the first position disengaging the coupling elements and allowing relative sliding movement and the second position engaging the coupling elements and blocking relative sliding movement.
Inventors
- 👤 Bruno Läng
- 👤 Alfred Benoit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:36
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/4455; A61F2/4465; A61F2/46; A61F2/4637; A61F2002/30001; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30146; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30354; A61F2002/30362; A61F2002/30364; A61F2002/30365; A61F2002/30367; A61F2002/3037; A61F2002/30373; A61F2002/30476; A61F2002/30487; A61F2002/30494; A61F2002/30495; A61F2002/30535; A61F2002/30537; A61F2002/3055; A61F2002/30574; A61F2002/30593; A61F2002/30601; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30841; A61F2002/30843; A61F2002/30878; A61F2002/30891; A61F2002/30892; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0063; A61F2230/0069
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
139 words
A vertebral bone prosthetic device comprising: an interior body, provided with an outer surface and a first coupling element thereon; an exterior hollow body with a bore therein extending along a central axis, with the exterior body being configured and dimensioned to be slidably received by the interior body along the central axis, and provided with an interior surface and an exterior surface, the interior surface having a groove; and a fixation ring having inner and outer surfaces, with the inner surface having a second coupling element thereon, the fixation ring configured and dimensioned to be received within the groove for rotational movement about the central axis of the exterior body, wherein rotation of the fixation ring results in engagement of the first and second coupling elements to thereby prevent relative sliding movement between the interior and exterior bodies.
Claim 2
Dependent Claim
139 words
A vertebral bone prosthetic device comprising: an interior body, provided with an outer surface and a first coupling element thereon; an exterior hollow body with a bore therein extending along a central axis, with the exterior body being configured and dimensioned to be slidably received by the interior body along the central axis, and provided with an interior surface and an exterior surface, the interior surface having a groove; and a fixation ring having inner and outer surfaces, with the inner surface having a second coupling element thereon, the fixation ring configured and dimensioned to be received within the groove for rotational movement about the central axis of the exterior body, wherein rotation of the fixation ring results in engagement of the first and second coupling elements to thereby prevent relative sliding movement between the interior and exterior bodies.
Claim 3
Dependent Claim
41 words
The device of claim 1 , wherein the fixation ring is rotatable between first second positions, the first position disengaging the coupling elements and allowing relative sliding movement and the second position engaging the coupling elements and blocking relative sliding movement.
Claim 4
Dependent Claim
29 words
The device of claim 2 , wherein the first coupling elements consist of elevations and the second coupling elements consist of recesses configured and dimensioned to match the elevations.
Claim 5
Dependent Claim
53 words
The device of claim 3 , wherein the elevations are restricted to a number of sectors, each of the sectors subtending a first angle and the recesses are restricted to a number of sectors, each of the sectors subtending a first angle, wherein the first and second angles are each less than 360°.
Claim 6
Dependent Claim
14 words
The device of claim 4 , wherein the first angle equals the second angle.
Claim 7
Dependent Claim
16 words
The device of claim 4 , wherein the sectors with elevations alternate with substantially smooth sectors.
Claim 8
Dependent Claim
16 words
The device of claim 4 , wherein the sectors with recesses alternate with substantially smooth sectors.
Claim 9
Dependent Claim
14 words
The device of claim 1 , wherein the interior body is a hollow-cylindrical body.
Claim 10
Dependent Claim
19 words
The device of claim 1 , wherein a superior end plate is located on the interior body free end.
Claim 11
Dependent Claim
18 words
The device of claim 1 , wherein an inferior endplate is located on the exterior body free end.
Claim 12
Dependent Claim
25 words
The device of claim 10 , wherein each of the end plates has a bone contacting surface configured and dimensioned to rest against a vertebra.
Claim 13
Dependent Claim
15 words
The device of claim 11 , wherein each bone-contacting surface perforations to enhance bone-in growth.
Claim 14
Dependent Claim
21 words
The device of claim 11 , wherein each bone-contacting surface has a plurality of projections to enhance interlocking with the vertebrae.
Claim 15
Dependent Claim
19 words
The device of claim 1 , wherein the exterior body further comprises a channel running along the central axis.
Claim 16
Dependent Claim
28 words
The device of claim 14 , wherein the inner body further comprises a tab engaging the channel to thereby prevent relative rotation between the inner and outer bodies.
Claim 17
Dependent Claim
31 words
The device of claim 1 , wherein at least a portion of the groove extends from the interior surface to the exterior surface to form a clearance in the exterior body.
Claim 18
Dependent Claim
26 words
The device of claim 16 , wherein the fixation ring comprises an offset engaging the clearance and configured and dimensioned for rotation of the fixation ring.
Claim 19
Dependent Claim
35 words
The device of claim 17 , wherein the offset comprises an axially projecting V-shaped elevation, which detents into matching fluting on the clearance, detachably locking the fixation ring into either the first or second position.
References Cited (Backward Citations)
DE2750648A1
Cited
DE3023942A1
Cited
US4554914A
Cited
US4657550A
Cited
EP0290767A1
Cited
US4892546A
Cited
US5330535A
Cited
US5571192A
Cited
US5702453A
Cited
WO1996017564A1
Cited
US5776198A
Cited
DE19604246A1
Cited
US5723013A
Cited
DE19622827A1
Cited
US6015436A
Cited
US5702455A
Cited
US6176881B1
Cited
US6086613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-02-24 | 2006-08-26 | 2007-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-24 | 2010-08-26 | 2011-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-24 | 2014-08-26 | 2015-02-25 | $7700.00 | Window Closed / Lapsed |