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US 2016/0256292 A1Published application
Intervertebral implant having mechanical securement
AssigneeJWD Products, LLC
InventorJill Donaldson
Life of this patent
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Abstract
An intervertebral implant for implantation between an upper vertebral body and a lower vertebral body is disclosed. The intervertebral implant includes a body portion through which a first and a second pathway pass. A first straight anchor is movable in a straight path through the first pathway and a second straight anchor is movable in a straight path through the second pathway. A locking member is movable between an open position and a closed position to either block or allow the withdrawal of the first and second straight anchors.
Claims21
An intervertebral implant for implantation between an upper vertebral body and a lower vertebral body, comprising:
- a body portion having a top side for contact with the upper vertebral body and a bottom side for contact with the lower vertebral body and an anterior side between said top and bottom sides, wherein said body portion defines in space a Z-axis generally in a cranial-caudal orientation therethrough and a Y-axis perpendicular to said Z-axis and passing through said anterior side;
- a first pathway through said body portion, said first pathway extending from said anterior side of said body portion to said top side of said body portion;
- a first straight anchor movable in a straight path through said first pathway to penetrate into the upper vertebral body;
- a second pathway through said body portion, said second pathway extending from said anterior side to said bottom side of said body portion;
- a second straight anchor movable in a straight path through said second pathway to penetrate into the lower vertebral body;
- a locking member, said locking member selectively movable between an open position and a closed position in a movement path that is generally transverse to said Y-axis, wherein upon said transverse movement to said closed position said locking member is located anteriorly of said first straight anchor and said second straight anchor blocking their withdrawal from said anterior side of body portion;
- and,
- wherein said locking member is selectively movable along said generally transverse movement path from said closed position to said open position to allow withdrawal of said first straight anchor and said second straight anchor from said anterior side of body portion to facilitate removal of the body portion from between the upper and lower vertebral bodies.
5 more elements
An intervertebral implant for implantation between an upper vertebral body and a lower vertebral body, comprising:
- a body portion having a top side for contact with the upper vertebral body and a bottom side for contact with the lower vertebral body and an anterior side between said top and bottom sides;
- a plate removably attachable to said body portion, said plate including a top side for contact with the upper vertebral body and a bottom side for contact with the lower vertebral body and a posterior side and an anterior side between said top and bottom sides, wherein said plate defines in space a Z-axis generally in a cranial-caudal orientation therethrough and a Y-axis perpendicular to said Z-axis and passing through said anterior side of said plate;
- a first pathway through said plate, said first pathway extending from said anterior side of said plate to said top side of said plate;
- a first straight anchor movable in an straight path through said first pathway to penetrate into the upper vertebral body;
- a second pathway through said plate, said second pathway extending from said anterior side of said plate to said bottom side of said plate;
- a second straight anchor movable in an straight path through said second pathway to penetrate into the lower vertebral body;
- wherein said first straight anchor includes a first front edge that extends anteriorly of a front surface along said anterior side of said plate when said first straight anchor is implanted and penetrating into the upper vertebral body, and wherein said first straight anchor comprises a first hole located near said first front edge for being grabbed by a tool for anterior withdrawal from said plate;
- and,
- wherein said second straight anchor includes a second front edge that extends anteriorly of a front surface along said anterior side of said plate when said second straight anchor is implanted and penetrating into the upper vertebral body, and wherein said second straight anchor comprises a second hole located near said second front edge for being grabbed by a tool for anterior withdrawal from said plate.
6 more elements
Dependencies are inferred from the claim text.