Devices and methods for contouring an intervertebral space between vertebral members
First Claim
1. A device to contour endplates of vertebral members comprising:
- an inner member with an elongated shaft and an enlarged section;
an outer member comprising first and second arms spaced a distance apart that is greater than the shaft and less than the distal section; and
teeth positioned on outer surfaces of the first and second arms;
the outer member movably positioned along the inner member between a first position with the teeth positioned over the shaft with the first and second arms being positioned a first distance apart, and a second position with the teeth positioned over the distal section with the first and second arms being positioned an expanded second distance apart.
2 Assignments
0 Petitions
Accused Products
Abstract
The present application is directed to devices and methods to shape an intervertebral space between vertebral members. In one embodiment, the device includes a guide with an elongated shaft and an enlarged distal section. An outer member may include first and second arms that are spaced a distance apart. Teeth may be positioned on outer surfaces of one or both of the first and second arms. The outer member may be movably positioned along the guide between first and second positions. The first position may include the teeth positioned over the shaft with the first and second arms being positioned a first distance apart. The second position may include the teeth positioned over the distal section with the first and second arms being positioned an expanded second distance apart.
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Citations
28 Claims
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1. A device to contour endplates of vertebral members comprising:
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an inner member with an elongated shaft and an enlarged section;
an outer member comprising first and second arms spaced a distance apart that is greater than the shaft and less than the distal section; and
teeth positioned on outer surfaces of the first and second arms;
the outer member movably positioned along the inner member between a first position with the teeth positioned over the shaft with the first and second arms being positioned a first distance apart, and a second position with the teeth positioned over the distal section with the first and second arms being positioned an expanded second distance apart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device to contour endplates of vertebral members comprising:
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an inner member with a proximal section and an enlarged distal section;
an outer member comprising an inner surface that faces towards the inner member and an outer surface including teeth that face towards one of the endplates;
the outer member movably positioned along the inner member between a first position with the inner member at a proximal position relative to the outer member with the teeth positioned away from the distal section and positioned a first distance from a centerline of the proximal section, and a second position with the inner member at a distal position relative to the outer member with the teeth positioned over the distal section and positioned a second greater distance from the centerline of the proximal section. - View Dependent Claims (11)
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12. A device to contour endplates of vertebral members comprising:
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a guide including an enlarged section with first and second angled surfaces;
a member movably engaged with the guide and including a first arm with a first inner surface that moves along the first angled surface and a second arm with a second inner surface that moves along the second angled surface; and
each of the first and second arms including teeth on an outer surface that contour the vertebral members during movement of the member along the enlarged section.
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13. A device to contour endplates of vertebral members comprising:
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a guide including first and second convex surfaces;
a member movably engaged with the guide and including a first arm with a first inner surface that moves along the first convex surface and a second arm with a second inner surface that moves along the second convex surface; and
each of the first and second arms including teeth on an outer surface that contour the vertebral members during movement of the member along the first and second convex surfaces. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A device to contour endplates of vertebral members comprising:
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a guide including a first convex surface positioned at a distal end of a shaft;
an elongated member positioned on an exterior of the guide and including an inner surface that moves along the first convex surface; and
teeth positioned on an outer surface of the arm to contour one of the vertebral members during movement of the elongated member along the guide. - View Dependent Claims (22, 23)
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24. A method of contouring an intervertebral space between vertebral members, the method comprising the steps of:
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inserting a distal section of a guide within a central section of the intervertebral space;
moving a member axially along a first section of the guide;
contacting an inner surface of the member against an enlarged distal section of the guide and moving the member outward away from the central section and into contact with one of the vertebral members; and
reciprocating the member within the intervertebral space and contouring the vertebral member with teeth positioned on an outer surface of the member. - View Dependent Claims (25, 26, 27, 28)
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Specification