US20020022888A1
Expired / Lapsed
US
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Spinal disc
Assignee: TLIF LLC
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Filing: 2001-08-02
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Granted: —
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Expires: 2021-08-02
Abstract
Abstract A spinal disc prosthesis ( 10 ) to replace a damaged spinal disc in a spinal column ( 16 ) of a human, includes an elastomeric core ( 200 ) having upper and lower surfaces ( 202, 212 ) which are parallel to each other. An upper rigid plate ( 20 ) has opposed first and second surfaces ( 42, 52 ). The first surface ( 42 ) is affixed to the upper surface ( 202 ) of the elastomeric core. The second surface ( 52 ) is inclined relative to the first surface ( 42 ). A lower rigid plate ( 120 ) has opposed third and fourth surfaces ( 142, 152 ). The third surface ( 142 ) is affixed to the lower surface ( 212 ) of the elastomeric core ( 200 ) and extends parallel to the first surface ( 42 ). The fourth surface ( 152 ) is inclined relative to the third surface ( 142 ). The second and fourth surfaces ( 52, 152 ) are inclined relative to each other.
Inventors
- 👤 Hassan Serhan
- 👤 James Kuras
- 👤 Carl McMillin
- 👤 Maarten Persenaire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:52
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/3094; A61F2/30942; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30069; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30131; A61F2002/30182; A61F2002/30187; A61F2002/30199; A61F2002/30224; A61F2002/3023; A61F2002/30316; A61F2002/30535; A61F2002/30563; A61F2002/30574; A61F2/30767; A61F2002/30769; A61F2/30771; A61F2002/30795; A61F2002/30805; A61F2002/30878; A61F2002/30879; A61F2002/30884; A61F2002/30957; A61F2002/30967; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0013; A61F2230/0028; A61F2230/0034; A61F2230/0063; A61F2230/0069; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00023; A61F2310/00389; A61F2310/00395; A61F2310/00407
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
121 words
1 . A spinal disc prosthesis for replacing a damaged spinal disc in a spinal column of a human, the prosthesis comprising an elastomeric core having generally parallel superior and inferior surfaces, a superior plate having a inferior surface coupled to the superior surface of the core and a superior surface, and an inferior plate having a superior surface coupled to the inferior surface of the core and an inferior surface, the inferior surface of the superior plate and the superior surface of the inferior plate are generally parallel relative to one another and the superior surface of the superior plate and the inferior surface of the inferior plate are angled relative to the superior and inferior surfaces of the core.
Claim 2
Dependent Claim
121 words
1 . A spinal disc prosthesis for replacing a damaged spinal disc in a spinal column of a human, the prosthesis comprising an elastomeric core having generally parallel superior and inferior surfaces, a superior plate having a inferior surface coupled to the superior surface of the core and a superior surface, and an inferior plate having a superior surface coupled to the inferior surface of the core and an inferior surface, the inferior surface of the superior plate and the superior surface of the inferior plate are generally parallel relative to one another and the superior surface of the superior plate and the inferior surface of the inferior plate are angled relative to the superior and inferior surfaces of the core.
Claim 3
Dependent Claim
41 words
2 . The prosthesis of claim 1 , wherein the core has anterior and posterior portions and the superior surface of the superior plate and the inferior surface of the inferior plate diverge from the posterior portion to the anterior portion.
Claim 4
Dependent Claim
26 words
3 . The prosthesis of claim 2 , wherein the superior and inferior plates each include a rim extending about the respective superior and inferior surface.
Claim 5
Dependent Claim
26 words
4 . The prosthesis of claim 1 , wherein the superior and inferior plates each include a rim extending about the respective inferior and superior surface.
Claim 6
Dependent Claim
16 words
5 . The prosthesis of claim 4 , wherein the rim is generally semi-cylindrical in shape.
Claim 7
Dependent Claim
25 words
6 . The prosthesis of claim 4 , wherein each of the rims cooperate with the respective inferior and superior surface to define a cavity.
Claim 8
Dependent Claim
93 words
7 . A spinal disc prosthesis for replacing a damaged spinal disc in a spinal column of a human, the prosthesis comprising an elastomeric core having superior and inferior surfaces positioned to lie generally parallel to one another, a superior plate coupled to the superior surface of the core, the superior plate having a superior surface inclined relative to the superior surface of the core, and an inferior plate coupled to the inferior surface of the core, the inferior plate having an inferior surface inclined relative to the inferior surface of the core.
Claim 9
Dependent Claim
93 words
7 . A spinal disc prosthesis for replacing a damaged spinal disc in a spinal column of a human, the prosthesis comprising an elastomeric core having superior and inferior surfaces positioned to lie generally parallel to one another, a superior plate coupled to the superior surface of the core, the superior plate having a superior surface inclined relative to the superior surface of the core, and an inferior plate coupled to the inferior surface of the core, the inferior plate having an inferior surface inclined relative to the inferior surface of the core.
Claim 10
Dependent Claim
41 words
8 . The prosthesis of claim 7 , wherein the core has anterior and posterior portions and the superior surface of the superior plate and the inferior surface of the inferior plate diverge from the posterior portion to the anterior portion.
Claim 11
Dependent Claim
33 words
9 . The prosthesis of claim 7 , wherein the superior surface of the superior plate is inclined relative to the superior surface of the core by about 1.5 to about 7.5 degrees.
Claim 12
Dependent Claim
33 words
10 . The prosthesis of claim 9 , wherein the superior surface of the superior plate is inclined relative to the superior surface of the core by about 2.5 to about 5 degrees.
Claim 13
Dependent Claim
33 words
11 . The prosthesis of claim 9 , wherein the inferior surface of the inferior plate is inclined relative to the inferior surface of the core by about 1.5 to about 7.5 degrees.
Claim 14
Dependent Claim
33 words
12 . The prosthesis of claim 11 , wherein the inferior surface of the inferior plate is inclined relative to the inferior surface of the core by about 2.5 to about 5 degrees.
Claim 15
Dependent Claim
32 words
13 . The prosthesis of claim 7 , wherein the superior surface of the superior plate and the inferior surface of the inferior plate are formed to include bone ingrowth material thereon.
Claim 16
Dependent Claim
112 words
14 . A spinal disc prosthesis for replacing a damaged spinal disc in a spinal column of a human, the prosthesis comprising an elastomeric core having an anterior portion, a posterior portion, a superior surface and an inferior surface and the superior and inferior surfaces are positioned to lie generally parallel to one another, a superior plate coupled to the superior surface of the core and having a superior surface, and an inferior plate coupled to the inferior surface of the core and having a inferior surface, and the superior surface of the superior plate and the inferior surface of the inferior plate diverge from the posterior portion to the anterior portion.
Claim 17
Dependent Claim
112 words
14 . A spinal disc prosthesis for replacing a damaged spinal disc in a spinal column of a human, the prosthesis comprising an elastomeric core having an anterior portion, a posterior portion, a superior surface and an inferior surface and the superior and inferior surfaces are positioned to lie generally parallel to one another, a superior plate coupled to the superior surface of the core and having a superior surface, and an inferior plate coupled to the inferior surface of the core and having a inferior surface, and the superior surface of the superior plate and the inferior surface of the inferior plate diverge from the posterior portion to the anterior portion.
Claim 18
Dependent Claim
26 words
15 . The prosthesis of claim 14 , wherein the superior and inferior plates each include a rim extending about the respective superior and inferior surface.
Claim 19
Dependent Claim
26 words
16 . The prosthesis of claim 15 , wherein the superior and inferior plates each include a rim extending about respective the inferior and superior surface.
Claim 20
Dependent Claim
16 words
17 . The prosthesis of claim 16 , wherein the rim is generally semi-cylindrical in shape.
Claim 21
Dependent Claim
32 words
18 . The prosthesis of claim 14 , wherein the superior surface of the superior plate and the inferior surface of the inferior plate are formed to include bone ingrowth material thereon.
Claim 22
Dependent Claim
33 words
19 . The prosthesis of claim 14 , wherein the superior surface of the superior plate is inclined relative to the superior surface of the core by about 1.5 to about 7.5 degrees.
Claim 23
Dependent Claim
33 words
20 . The prosthesis of claim 14 , wherein the inferior surface of the inferior plate is inclined relative to the inferior surface of the core by about 1.5 to about 7.5 degrees.
References Cited (Backward Citations)
No citation records indexed.
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