Bone blocks and methods for inserting bone blocks into intervertebral spaces
AssigneeNuVasive, Inc.
InventorsJames T. McKinley, James F. Marino, Corbett W. Stone
Life of this patent
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Abstract
A method for inserting a bone block into a patient's intervertebral space, comprising: supporting the bone block in an inserter; advancing the inserter into the intervertebral space; rotating the inserter, thereby separating adjacent vertebrae; separating the bone block and the inserter with a push rod; and removing the inserter from the intervertebral space.
Claims41
A method for inserting a bone block into a patient's intervertebral space, comprising:
- supporting the bone block in an inserter;
- advancing the inserter into the intervertebral space;
- rotating the inserter by 90°, thereby separating the adjacent vertebrae by camming action;
- and
- removing the inserter from the intervertebral space.
A method for positioning interlocking first and second bone blocks in a patient's intervertebral space, comprising:
- supporting a first the bone block in a first inserter;
- advancing the first inserter into the intervertebral space;
- rotating the first inserter, thereby separating adjacent vertebrae;
- removing the first inserter;
- supporting a second the bone block in a second inserter;
- advancing the second inserter into the intervertebral space;
- rotating the second inserter;
- removing the second inserter;
- interlocking the first and second bone blocks;
- and
- removing the first and second inserters from the intervertebral space.
A system for introducing a bone block into the intervertebral space of a patient, comprising:
- an rotatable inserter having two prongs at a distal end;
- and
- a bone block received between the two prongs.
A bone block having opposite vertebral contact surfaces and opposite sides spanning between the opposite vertebral contact surfaces, wherein,
- the opposite vertebral contact surfaces each have a width which is about 20% to 60% of the height of the opposite sides spanning between the opposite vertebral contact surfaces.
A method for inserting a plurality of bone blocks in a patient's intervertebral space, comprising:
- supporting a first bone block in a first inserter;
- advancing the first inserter through a first cannula into the intervertebral space;
- rotating the first inserter, thereby positioning the first bone block between adjacent vertebrae;
- removing the first inserter;
- advancing a first push rod through a second cannula to move the first bone block away from the distal end of the first cannula;
- supporting a second the bone block in a second inserter;
- advancing the second inserter through the second inserter into the intervertebral space;
- rotating the second inserter;
- removing the second inserter;
- and
- advancing a second push rod through the first cannula to move the second bone block in an direction away from a distal end of the second cannula.
A bone block intervertebral insert comprising:
- an electrical transducer within the body of the insert, the transducer adapted to produce electrical current of a type and in an amount sufficient to induce osteogenesis in adjacent vertebrae as the result of relative spinal loading of the insert.
Dependencies are inferred from the claim text.