US 10,376,387 B2Granted

Apparatus for use in spinal interbody fusion

AssigneeSpine Wave, Inc.

InventorsScott McLean, Fabio Amaral Pinto, Peter Barreiro, David Boisvert

Life of this patent

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Abstract

An expandable interbody fusion device includes superior and inferior endplates that are configured to receive a sequentially inserted stack of expansion members or wafers in interlocking engagement. The expansion members are formed to each have a generally U-shaped rearward facing opening. The superior and inferior endplates have openings through their outer surfaces in at least partial alignment and communication with the rearward facing openings of the expansion members. The inferior endplate has a fully bounded cavity for telescoping receipt of the superior endplate. The inferior endplate also has a fully bounded channel extending through the rear endwall thereof in direct communication with the rearward facing opening of at least one expansion member for the receipt of bone graft material into the device to promote fusion between opposing vertebral bodies of the spine.

Claims18

Dependent claims

An apparatus for use in spinal interbody fusion, comprising:

an expandable device including a first outer surface for contacting one vertebral body in a spine and a second outer surface for contacting a second opposing vertebral body in said spine, a front end, a rear end, and a channel extending into said expandable device;
an inserter including a track assembly having a distal end and a proximal end, said inserter being releasably attached to said expandable device;
an insert supported by said track assembly for insertion into said expandable device through said channel, said insert including an angled lifting surface configured and oriented to cause expansion of said expandable device during insertion of said insert;
and
a guide pin releasably connected to said expandable device and detachably connected to said track assembly, said guide pin being supported by said track assembly and being detachable therefrom, said guide pin remaining releasably connected to said expandable device upon detachment of said inserter from said expandable device and said guide pin, said guide pin being configured to serve as a locator for subsequent attachment to another apparatus, including an apparatus for introducing bone graft material into said expandable device through said channel.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/031,526Filed 10 Jul 2018 · continuation
Priority: 12 Mar 2013
Published: US 2018/0140432 A18 Nov 2018
Granted: 13 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

A61F 2/4611
For insertion or extraction of endoprosthetic joints or of accessories thereof: of spinal prostheses
A61F 2/442
For the spine, e.g. vertebrae or spinal discs: intervertebral or spinal discs, e.g. resilient
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 2/447
For the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages: substantially parallelepipedal, e.g.…

Family

Application13/795,054Parent of this division · filed 12 Mar 2013
Application14/550,258Parent of this continuation · filed 21 Nov 2014
US 8,900,312 B2Parent of this division · filed 2 Dec 2014
Application15/373,587Parent of this continuation · filed 9 Dec 2016
US 9,517,141 B2Parent of this continuation · filed 13 Dec 2016
Application15/864,267Parent of this continuation · filed 8 Jan 2018
US 9,949,844 B2Parent of this continuation · filed 24 Apr 2018
US 2018/0318104 A1Pre-grant publication · published 8 Nov 2018
US 10,022,242 B2Parent of this continuation
Application14/550,258Parent of this division
US 2014/0277476 A1Published application
US 2015/0081025 A1Published application
US 2017/0095347 A1Published application
US 2018/0140432 A1Published application
US 10,376,387 B2This patent

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