Expandable vertebral body replacement device and method
First Claim
Patent Images
1. An expandable cage system, comprising:
- a vertebral body device, comprising;
a body with a first end and a second end, the body comprising;
a plurality of apertures positioned around the body along a midpoint between the first end and the second end, each of the plurality of apertures spaced apart from the adjacent apertures;
a plurality of first positioning holes positioned superior to each of the plurality of apertures; and
a plurality of second positioning holes positioned inferior to each of the plurality of apertures;
a first rotating member coupled to the first end;
a second rotating member 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; and
an insertion instrument, wherein the plurality of apertures, the plurality of first positioning holes, and the plurality of second positioning holes are sized to receive the insertion instrument, the insertion instrument comprising;
a deployment handle;
a position selector member rotatably coupled to the deployment handle;
a rod extending through an opening in the position selector member, the rod comprising;
a threaded section configured to couple to an opening in the body of the vertebral body device;
an implant attachment member coupled to a portion of the rod; and
a tension adjustment member rotatably coupled to the rod at a second end.
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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.
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Citations
13 Claims
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1. An expandable cage system, comprising:
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a vertebral body device, comprising; a body with a first end and a second end, the body comprising; a plurality of apertures positioned around the body along a midpoint between the first end and the second end, each of the plurality of apertures spaced apart from the adjacent apertures; a plurality of first positioning holes positioned superior to each of the plurality of apertures; and a plurality of second positioning holes positioned inferior to each of the plurality of apertures; a first rotating member coupled to the first end; a second rotating member 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; and an insertion instrument, wherein the plurality of apertures, the plurality of first positioning holes, and the plurality of second positioning holes are sized to receive the insertion instrument, the insertion instrument comprising; a deployment handle; a position selector member rotatably coupled to the deployment handle; a rod extending through an opening in the position selector member, the rod comprising; a threaded section configured to couple to an opening in the body of the vertebral body device; an implant attachment member coupled to a portion of the rod; and a tension adjustment member rotatably coupled to the rod at a second end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of using an expandable cage system, comprising:
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obtaining a vertebral body device, the vertebral body comprising; 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; obtaining an insertion instrument, the insertion instrument comprising; a deployment handle; a position selector member rotatably coupled to the deployment handle; a rod extending through an opening in the position selector member; an attachment member coupled to a portion of the rod; and an adjustment member rotatably coupled to the rod at a second end; coupling the vertebral body device to the insertion instrument, comprising; aligning a first end of the rod with an opening in the body of the vertebral body device; rotating the implant attachment member to couple the rod to the body of the vertebral body device; and rotating the adjustment member to position the deployment handle for engagement with the first rotating member; inserting the vertebral body device into a patient between two vertebral bodies; expanding the vertebral body device; removing the insertion instrument; and closing the patient. - View Dependent Claims (13)
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Specification