Spinal fixation devices and methods of use
OwnerSamy Abdouinventor
Life of this patent
Estimating the term…
Abstract
Placement apparatus and methods of use for impanation of spacers within an inter-vertebral disc space. In one embodiment, the load-bearing superstructure of the implant is subdivided and the bone forming material is positioned within an internal space of the placement instrument but external to the load bearing elements themselves. At least a portion of the bone graft material is freely contained within the disc space. A method of using the device is also described. In one embodiment, the placement device is used to place the implantable spacers at opposing ends of the disc space using a directly lateral surgical approach.
Claims56
An orthopedic device assembly configured to deliver an implantable device into an intervertebral disc space that is positioned between a first and a second vertebral bone, comprising:
- an implantable device sized and shaped for implantation into said intervertebral disc space and comprising:
- a first member;
- and
- a second member, said second member not being integrally formed with said first member;
- and
- a non-implantable placement instrument configured to deliver said implantable device to said intervertebral disc space, and comprising a cavity that is at least partially contained therein and configured to contain a bone forming material;
- wherein, when said implantable device is coupled to said non-implantable placement instrument, said cavity is configured to separate said first and said second member and is bordered on all sides by at least a segment of said placement instrument or segments of said implantable device;
- and
- wherein at least one side of said cavity is bordered by said placement instrument alone.
An orthopedic device assembly for concurrent placement of a first implantable spacer and a second implantable spacer into an intervertebral disc space between a superior vertebral bone and an inferior vertebral bone, said orthopedic device assembly comprising:
- said first implantable spacer comprising a superior surface that abuts said superior vertebral bone and an inferior surface that abuts said inferior vertebral bone;
- said second implantable spacer comprising a superior surface that abuts said superior vertebral bone and an inferior surface that abuts said inferior vertebral bone, said second implantable spacer being non-integrally formed with said first implantable spacer;
- and
- a non-implantable placement instrument that extends along a longitudinal axis from a proximal end to a distal end and comprising an intermediate surface therebetween;
- wherein said proximal end of said non-implantable placement instrument comprises a handle, said first implantable spacer affixes to a first surface of said distal end and said second implantable spacer affixes to said intermediate surface, and
- wherein, when coupled to said non-implantable placement instrument, a first side of said first implantable spacer is aligned to face a first side of said second implantable spacer.
An orthopedic device assembly configured to deliver an implantable device into an intervertebral disc space between a superior vertebral bone and an inferior vertebral bone, said orthopedic device assembly comprising:
- said implantable device comprising a first member and a second member that are not integrally formed, said first member comprising a superior surface and an inferior surface configured to abut said superior vertebral bone and said inferior vertebral bone, respectively, and said second member comprising a superior surface and an inferior surface configured to abut said superior vertebral bone and said inferior vertebral bone, respectively;
- and
- a non-implantable placement instrument that extends along a longitudinal axis from a proximal end to a distal segment, said non-implantable placement instrument comprising an intermediate surface between said proximal end and said distal segment which affixes to said second member, said proximal end comprising a handle, said distal segment comprising a first surface that affixes to said first member;
- wherein rotational movement is prevented between members of said implantable device while said implantable device is coupled to said non-implantable placement instrument.
A system for placement of an implant into a target intervertebral disc space between a superior and an inferior vertebral bone, comprising:
- a first implantable spacer having a superior surface and an inferior surface configured to abut said superior vertebral bone and said inferior vertebral bone respectively;
- a second implantable spacer having a superior surface and an inferior surface configured to abut said superior vertebral bone and said inferior vertebral bone respectively, said second implantable spacer being non-integrally formed with said first implantable spacer;
- and
- a non-implantable placement instrument that extends along a longitudinal axis from a proximal end to a distal segment and that concurrently delivers both said first and second implantable spacers into said target intervertebral disc space;
- wherein, when coupled to said non-implantable placement instrument, a first side of said first implantable spacer is aligned to face and to be separated by a first distance from a first side of said second implantable spacer;
- and
- wherein said non-implantable placement instrument comprises a feature configured to be actuated to alter a value of said first distance.
Dependencies are inferred from the claim text.