Expandable vertebral body replacement device and method
First Claim
Patent Images
1. A vertebral body device, comprising:
- a body with a first end and a second end, wherein the body further comprises;
an opening extending from the first end to the second end;
at least one first channel recessed into an interior surface of the body and extending from the first end toward the second end and positioned adjacent to the opening; and
at least one second channel recessed into the interior surface of the body and extending from the second end toward the first end and positioned adjacent to the opening;
a first rotating member rotatably coupled directly to an exterior surface of the first end;
a second rotating member rotatably coupled directly to an exterior surface of the second end;
a first extension member moveably coupled to the first end and engaging an interior surface of the body; and
a second extension member moveably coupled to the second end and engaging the interior surface of the body.
2 Assignments
0 Petitions
Accused Products
Abstract
An expandable vertebral body device, system, instrument, and methods of assembly and using the device, system, and instrument are disclosed. The vertebral body device includes a body with a first end and a second end, a first rotating member rotatably coupled to the first end, a second rotating member rotatably coupled to the second end, a first extension member moveably coupled to the first end, and a second extension member moveably coupled to the second end. The expandable cage system comprises a vertebral body device and an insertion instrument. Methods for assembling and using the vertebral body device and instrument are also disclosed.
42 Citations
15 Claims
-
1. A vertebral body device, comprising:
-
a body with a first end and a second end, wherein the body further comprises; an opening extending from the first end to the second end; at least one first channel recessed into an interior surface of the body and extending from the first end toward the second end and positioned adjacent to the opening; and at least one second channel recessed into the interior surface of the body and extending from the second end toward the first end and positioned adjacent to the opening; a first rotating member rotatably coupled directly to an exterior surface of the first end; a second rotating member rotatably coupled directly to an exterior surface of the second end; a first extension member moveably coupled to the first end and engaging an interior surface of the body; and a second extension member moveably coupled to the second end and engaging the interior surface of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A vertebral body device, comprising:
-
a body with a first end and a second end, wherein the body comprises; an opening extending from the first end to the second end; at least one first channel recessed into an interior surface of the body and extending from the first end toward the second end and positioned adjacent to the opening; and at least one second channel recessed into the interior surface of the body and extending from the second end toward the first end and positioned adjacent to the opening; a first rotating member rotatably coupled to an exterior surface of the first end; a second rotating member rotatably coupled to an exterior surface of the second end; a first extension member moveably coupled to the first end; and a second extension member moveably coupled to the second end; wherein the at least one first channel is three channels, the at least one second channel is three channels, and the first channels are each positioned adjacent to the second channels.
-
-
12. A vertebral body device, comprising:
-
a body with a first end and a second end; a first rotating member rotatably coupled to the first end, wherein the first rotating member comprises; a center opening forming an interior surface, wherein the interior surface comprises; threads positioned on the interior surface; a plurality of grooves positioned around an exterior surface, wherein the plurality of grooves are undercut toward the interior surface forming a locking surface extending from an exterior surface of each of the grooves to the exterior surface of the first rotating member; and at least one first angled slot positioned on the interior surface and intersecting the threads on the first rotating member; a first extension member moveably coupled to the first end; a second rotating member rotatably coupled to the second end, wherein the second rotating member comprises; a center opening forming an interior surface, wherein the interior surface comprises; threads positioned on the interior surface; a plurality of grooves positioned around an exterior surface, wherein the plurality of grooves are undercut toward the interior surface forming a locking surface extending from an exterior surface of each of the grooves to the exterior surface of the second rotating member; and at least one second angled slot positioned on the interior surface and intersecting the threads on the second rotating member; a second extension member moveably coupled to the second end.
-
-
13. A vertebral body device, comprising:
-
a body with a first end and a second end; a first rotating member rotatably coupled to the first end, wherein the first rotating member comprises; a center opening forming an interior surface, wherein the interior surface comprises; threads positioned on the interior surface; and a plurality of grooves positioned around an exterior surface, wherein the plurality of grooves are undercut toward the interior surface forming a locking surface extending from an exterior surface of each of the grooves to the exterior surface of the first rotating member; and a first extension member moveably coupled to the first end, wherein the first extension member comprises; a top portion; at least one first leg member extending away from the top portion, wherein the at least one first leg member comprises; threads positioned on an exterior surface of the at least one first leg member and configured to engage the threads on the interior surface of the first rotating member; and a tab positioned on a second end of the at least one first leg member and configured to engage at least one first angled slot of the first rotating member; and at least one first support member positioned between and coupled to the at least one first leg member; a second rotating member rotatably coupled to the second end, wherein the second rotating member comprises; a center opening forming an interior surface, wherein the interior surface comprises; threads positioned on the interior surface; and a plurality of grooves positioned around an exterior surface, wherein the plurality of grooves are undercut toward the interior surface forming a locking surface extending from an exterior surface of each of the grooves to the exterior surface of the second rotating member; and a second extension member moveably coupled to the second end; wherein the body further comprises; an opening extending from the first end to the second end; at least one first channel extending from the first end toward the second end and positioned adjacent to the opening; at least one second channel extending from the second end toward the first end and positioned adjacent to the opening; a first groove positioned near the first end for receiving the first rotating member; a second groove positioned near the second end for receiving the second rotating member; and at least one aperture positioned at a midpoint between the first groove and the second groove. - View Dependent Claims (14, 15)
-
Specification