In-situ formed intervertebral fusion device and method
AssigneeDePuy Synthes Products, Inc.
InventorsThomas M. DiMauro, Michael Andrew Slivka
Life of this patent
Estimating the term…
Abstract
An orthopedic device for implanting between adjacent vertebrae comprising: an arcuate balloon and a hardenable material within said balloon. In some embodiments, the balloon has a footprint that substantially corresponds to a perimeter of a vertebral endplate. An inflatable device is inserted through a cannula into an intervertebral space and oriented so that, upon expansion, a natural angle between vertebrae will be at least partially restored. At least one component selected from the group consisting of a load-bearing component and an osteobiologic component is directed into the inflatable device through a fluid communication means.
Claims20
(canceled)
An intervertebral fusion device, comprising:
- a first sidewall having cranial and caudal margins that define a first height dimension therebetween, wherein the first sidewall comprises titanium;
- a second sidewall opposite the first sidewall and having cranial and caudal margins that define a second height dimension therebetween, wherein the second sidewall comprises titanium;
- a load-bearing polymeric body disposed between the first and second sidewalls;
- and
- a cavity disposed within the polymeric body;
- wherein the device is positionable within an intervertebral disc space such that the first and second height dimensions are oriented along a height dimension between cranial and caudal vertebrae that define the disc space.
An intervertebral fusion device, comprising:
- an upper bone contacting surface comprising teeth;
- a lower bone contacting surface comprising teeth, the upper and lower surfaces defining a height dimension therebetween;
- first and second sidewalls extending along the height dimension, the first and second sidewalls comprising titanium;
- and
- a polymeric core disposed between the first and second sidewalls and defining a cavity configured to receive bone graft.
An intervertebral fusion device, comprising:
- a first sidewall having an upper surface, a lower surface, an inner side surface, and an outer side surface, the first sidewall comprising titanium;
- a second sidewall having an upper surface, a lower surface, an inner side surface, and an outer side surface, the second sidewall comprising titanium;
- a load-bearing polymeric body disposed between the first and second sidewalls and in contact with the inner side surfaces of the first and second sidewalls;
- and
- a cavity formed in the polymeric body and having bone graft disposed therein;
- wherein, when positioned within an intervertebral disc space, the upper surfaces of the first and second sidewalls face an upper vertebra of the disc space and the lower surfaces of the first and second sidewalls face a lower vertebra of the disc space.
A method of forming an intervertebral fusion device, comprising:
- accessing an intervertebral disc space defined between a cranial vertebra and a caudal vertebra;
- inserting a device having first and second sidewalls into the disc space such that cranial margins of the first and second sidewalls face an endplate of the cranial vertebra and such that caudal margins of the first and second sidewalls face an endplate of the caudal vertebra, wherein the first and second sidewalls include titanium;
- and
- positioning bone graft material within a cavity disposed within a polymeric body, the polymeric body being situated between the first and second sidewalls.
Dependencies are inferred from the claim text.