US 2014/0194992 A1 · EXPANDABLE INTERBODY (LATERAL, POSTERIOR, ANTERIOR) MULTI-ACCESS CAGE FOR SPINAL SURGERY

Abstract

An interbody cage can be utilized in a multi-access approach. Such a device can be inserted in an MIS exposure and then can be expanded insitu. Such a multi access device can expand in width to cover a larger area for fusion to occur. Such device includes a unique feature that allows for the graft material to stay in place upon deployment. Such a cage device can be configured with four graft boxes that can be filled with allograft or autograft material to allow for fusion to occur. Along with the graft boxes, such a cage can also be configured with a unique feature in the posterior piece of the device that has small cut outs or ports to allow for moldable allograft material to be injected through the inserter device.

Claims15

Dependent claims

An implant apparatus for spinal fusion, said apparatus comprising:

an expandable implant cage positioned between endplates of upper and lower vertebra comprising a male and female screw arrangement and a cage expansion mechanism, wherein said cage expansion mechanism expands said cage size on tightening said male and female screw arrangement;
and
an inserter for inserting said cage in a spinal disc space that maintains a handle, a shaft, and a coupling arrangement, wherein said inserter is operated to engage said coupling arrangement with said male and female screw arrangement and to tighten said male and female screw arrangement.

Dependencies are inferred from the claim text.

Facts

Application

13/734,583Filed 4 Jan 2013

Published

10 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61F 2/4455
For the spine, e.g. vertebrae or spinal discs: for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion…
A61F 2/4611
For insertion or extraction of endoprosthetic joints or of accessories thereof: of spinal prostheses
A61F 2/447
For the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages: substantially parallelepipedal, e.g.…
A61F 2002/30471
Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements: connected by a hinged linkage mechanism, e.g.…

Expandable interbody (lateral, posterior, anterior) multi-access cage for spinal surgery

Life of this patent

Expandable interbody (lateral, posterior, anterior) multi-access cage for spinal surgery

Life of this patent

Abstract

Claims15