US 8,262,735 B2Granted

Implantable spinal disk

AssigneeInternational Spinal Innovations, LLC

InventorsJoseph Aferzon, Jeffrey A. Bash

Life of this patent

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Abstract

Spinal disk including a shell, first endplate, second endplate and core. The shell includes sidewalls, back wall, front wall, top wall and bottom wall defining a compartment. The first endplate includes a first base, first top and first attachment. The first base is retained in the compartment. The first top is disposed in a first opening in the top wall forming a contact surface continuous with a surface of the top wall. The first attachment extends from the first top portion. The second endplate includes a second base, second top and second attachment. The second base is retained in the compartment. The second top is disposed in a second opening in the bottom wall forming a contact surface continuous with a surface of the bottom wall. The second attachment extends from the second top portion. The core is disposed in the compartment between the first endplate and the second endplate.

Claims24

Dependent claims

An implantable spinal disk comprising:

an external shell including a pair of sidewalls, back wall, front wall, top wall and bottom wall which define a compartment that extends therebetween in the shell, the top wall having a first opening from exterior of the shell into the compartment, the bottom wall having a second opening from exterior of the shell into the compartment;
a first endplate including a first base portion, first top portion and at least one first attachment device, the first base portion retained in the compartment by the top wall and extending from a first sidewall to a second sidewall of the pair of sidewalls, the first top portion disposed in the first opening and extending about the first opening to form a top contact surface continuous with an exterior surface of the top wall, the at least one first attachment device extending from the first top portion and configured to penetrate into a first vertebra;
a second endplate including a second base portion, second top portion and at least one second attachment device, the second base portion retained in the compartment by the bottom wall and extending from the first sidewall to the second sidewall, the second top portion disposed in the second opening and extending about the second opening to form a bottom contact surface continuous with an exterior surface of the bottom wall, the at least one second attachment device extending from the second top portion and configured to penetrate into a second vertebra;
and
a core internal component disposed in the compartment and extending from the first sidewall to the second sidewall between the first endplate and the second endplate.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/188,157Filed 21 Jul 2011 · continuation
Priority: 20 Nov 2006
Published: US 2011/0282458 A117 Nov 2011
Granted: 11 Sep 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A61F 2/4425
Intervertebral or spinal discs, e.g. resilient: made of articulated components
A61F 2/442
For the spine, e.g. vertebrae or spinal discs: intervertebral or spinal discs, e.g. resilient
A61F 2/441
For the spine, e.g. vertebrae or spinal discs: made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel
A61F 2002/30014
The prosthesis being made from materials having different values of a given property at different locations within the same prosthesis: differing…

Family

Application60/859,990Us provisional application · filed 20 Nov 2006
Application11/939,991Parent of this continuation · filed 14 Nov 2007
US 2011/0282458 A1Pre-grant publication · published 17 Nov 2011
US 8,029,569 B2Parent of this continuation
US 2008/0183295 A1Published application
US 8,262,735 B2This patent

From the US filing history. Foreign family members aren’t listed.