Back to results
US 2012/0095561 A1Published application
Intervertebral implant
AssigneeSynthes USA, LLC
InventorsCyril Voisard, Markus Kraft, Beat Lechmann
Life of this patent
Estimating the term…
Abstract
A method for fixation of an intervertebral implant includes the steps of: a) applying a spreading force to a first and second adjacent vertebral bodies; b) removing the intervertebral disc between the adjacent first and second vertebral bodies; c) inserting a shaft of the bone anchors into the vertebral bodies, and fixing a head of the bone anchors to an intervertebral implant.
Claims40
An implant assembly comprising:
- an implant body defining a first bone contacting surface and a second bone contacting surface, the first bone contacting surface spaced apart from the second bone contacting surface, at least one of the first or second bone contacting surfaces defining at least one recess that extends into a first side of the implant body but not through the implant body, such that the at least one recess is configured to receive a head of a bone anchor so that a shaft of the bone anchor extends out from the first side.
An implant assembly comprising:
- an implant body sized to be received in an intervertebral space, the implant body defining a first bone contacting surface and a second contacting surface, the first contacting surface spaced apart from the second contacting surface, the implant body defining a first recess extending into the first contacting surface, the first recess extending into a first side of the implant body but not through the implant body, implant body defining a second recess extending into the second contacting surface, the second recess extending into a second side of the implant body but not through the implant body;
- a first bone anchor comprising a first head and a first shaft, the first head configured to be received inside the first recess, wherein the first recess is configured to receive the first head of the first bone anchor so that the first shaft of the first bone anchor extends out from the first side;
- and
- a second bone anchor comprising a second head and a second shaft, the second head configured to be received inside the second recess, wherein the second recess is configured to receive the second head of the second bone anchor so that the second shaft of the second bone anchor extends out from the second side.
1 more element
A method for fixing an intervertebral implant in an intervertebral space, the method comprising the steps of:
- a) applying a spreading force to first and second vertebral bodies that define the intervertebral space so as to distract the first and second vertebral bodies;
- b) inserting at least one bone anchor into the first and second vertebral bodies;
- c) inserting an implant body into the intervertebral cavity such that an engagement member is aligned with the inserted bone anchors;
- and
- d) releasing the spreading force so that the bone anchors are secured to the engagement member of the implant body.
2 more elements
An implant assembly comprising:
- an implant body defining a first bone contacting surface and a second bone contacting surface, the first bone contacting surface spaced apart from the second bone contacting surface, wherein the implant body comprises at least one projection extending from at least one of the first or second bone contacting surfaces in a transverse direction, the at least one projection configured to be received in a cavity of a head of at least one bone anchor.
Dependencies are inferred from the claim text.