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US 8,252,059 B2Granted
Full-metal dampening intervertebral implant
AssigneeSynthes USA, LLC
InventorsThomas Overes, Cyril Voisard, Robert Frigg, Silas Zurschmiede, Beat Lechmann
Life of this patent
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Abstract
A flexible element that may be configured, among various uses, as an intervertebral implant for insertion into an intervertebral disc space between adjacent vertebral bodies or between two bone portions. The flexible element includes one or more struts extending from superior and inferior endplates and bending towards one another for connection with one or more internal beams.
Claims15
An intervertebral implant for insertion into an intervertebral disc space between first and second vertebral bodies, the implant comprising:
- a superior implant portion having a superior top surface for contacting the first vertebral body, a superior outer surface, and a superior inner surface, the superior implant portion including a first superior strut and a second superior strut each connected at a first end to an opposing side of the superior implant portion near the superior outer surface, and extending away superior inner surface in a substantially perpendicular direction, the first and second superior struts each having a curved portion extending inwardly towards one another;
- a hanging beam positioned substantially parallel to the first and second superior struts and connected at a first end to each of the curved portions of the first and second superior struts;
- and
- an inferior implant portion having an inferior top surface for contacting the second vertebral body, an inferior outer surface, and an inferior inner surface, the inferior implant portion including a first inferior strut and a second inferior strut each connected at a first end to an opposing side of the inferior implant portion near the inferior outer surface, and extending away from the inferior inner surface in a substantially perpendicular direction, the first and second inferior struts each having a curved portion extending inwardly towards one another and connecting with a second end of the hanging beam;
- wherein the superior inner surface and the inferior inner surface are in an opposing relationship, and the first and second superior struts of the superior implant portion and the first and second inferior struts of the inferior implant portion are positioned substantially within a plane of the superior and inferior outer surfaces.
2 more elements
Dependencies are inferred from the claim text.