US 8,617,243 B2Granted

Spinal disc prosthesis and associated methods

AssigneeWarsaw Orthopedic, Inc.

InventorsLukas Eisermann, Eddie F. Ray, III, Hallett Mathews, Tai Friesem, Jean-Charles LeHuec

Life of this patent

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Abstract

A prosthetic device for insertion into a spondylosed intervertebral space is provided. The prosthetic device includes a first component having a first flange for longitudinally engaging a first vertebra during longitudinal insertion therein, and a second component having a second flange for longitudinally engaging a second vertebra during longitudinal insertion therein. One of the first and second components comprises a projection and the other of the first and second components comprises a recess, the projection and recess being adapted to engage one another. One of the projection and the recess are offset relative to the other of the projection and the recess to accommodate the spondylosed relationship between the first and second vertebrae.

Claims20

Dependent claims

A spinal prosthetic device, comprising:

a first support plate having a first engagement surface for engaging a first vertebra and a first articulation surface opposite the first engagement surface;
a first elongated keel member extending from the first engagement surface, the first elongated keel member configured to engage a slot in the first vertebra;
a second elongated keel member extending from the first engagement surface spaced from the first elongated keel member and coaxial with the first elongated keel member such that the second elongated keel member is further configured to engage the slot in the first vertebra;
and
a second support plate having a second engagement surface for engaging a second vertebra and a second articulation surface, the second support plate having a projection extending from the articulation surface of the second support plate configured for articulatingly engaging the first engagement surface of the first support plate.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/942,774Filed 9 Nov 2010 · continuation
Priority: 12 Feb 2003
Published: US 2011/0106263 A15 May 2011
Granted: 31 Dec 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification47 codes

A61F 2/4611
For insertion or extraction of endoprosthetic joints or of accessories thereof: of spinal prostheses
A61B 17/1642
Instruments for performing osteoclasis; Drills or chisels for bones; Trepans: for producing a curved bore
A61B 17/1671
For particular parts of the body: for the spine
A61B 17/1757
Specially adapted for particular parts of the body: for the spine

Family

Application60/446,963Us provisional application · filed 12 Feb 2003
Application10/774,135Parent of this continuation · filed 6 Feb 2004
US 2011/0106263 A1Pre-grant publication · published 5 May 2011
US 7,850,735 B2Parent of this continuation
US 2004/0220670 A1Published application
US 8,617,243 B2This patent

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