Bone fusion device
First Claim
1. A bone fusion device for insertion into a desired location comprising:
- a body having an interior cavity;
a tab configured to fit within the interior cavity and selectively move from a retracted position within interior cavity of the body to an extended position extending out of the body;
a first extension assembly coupled to a first portion of the tab and comprising a first threaded drive mechanism and a first drive screw configured to selectively move the first portion of the tab between the retracted position and the extended position; and
a second extension assembly coupled to a second portion of the tab and comprising a second threaded drive mechanism and a second drive screw, non-coaxial to the first drive screw, and configured to selectively move the second portion of the tab between the retracted position and the extended position;
wherein the first drive screw and the second drive screw are independently turned to selectively move the first portion of the tab and the second portion of the tab.
3 Assignments
0 Petitions
Accused Products
Abstract
A bone fusion device for insertion between bones that are to be fused together, such as, for example, the vertebrae of a spinal column. The bone fusion device comprises at least one extendable tab and one or more tab extension assemblies. Each tab extension assembly is able to be adjusted in order to individually control the extension or contraction of a side of the tab thereby enabling adjustment of the height and/or angle of the tab with respect to the body of the bone fusion device. Each tab extension assembly is able to be individually adjusted such that the side controlled by each assembly is raised or lowered until the desired tab angle is achieved. The tab is advantageously positioned and angled to correspond to the vertebrae to help brace the device until the bone has fused.
424 Citations
26 Claims
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1. A bone fusion device for insertion into a desired location comprising:
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a body having an interior cavity; a tab configured to fit within the interior cavity and selectively move from a retracted position within interior cavity of the body to an extended position extending out of the body; a first extension assembly coupled to a first portion of the tab and comprising a first threaded drive mechanism and a first drive screw configured to selectively move the first portion of the tab between the retracted position and the extended position; and a second extension assembly coupled to a second portion of the tab and comprising a second threaded drive mechanism and a second drive screw, non-coaxial to the first drive screw, and configured to selectively move the second portion of the tab between the retracted position and the extended position; wherein the first drive screw and the second drive screw are independently turned to selectively move the first portion of the tab and the second portion of the tab. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A bone fusion device for insertion into a desired location comprising:
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a body having an interior cavity; a tab configured to fit within the interior cavity and selectively move from a retracted position within interior cavity of the body to an extended position extending out of the body; a first extension assembly coupled to a first portion of the tab and comprising a first threaded drive mechanism and a first drive screw having a first longitudinal axis, configured to selectively move the first portion of the tab between the retracted position and the extended position; a second extension assembly coupled to a second portion of the tab and comprising a second threaded drive mechanism and a second drive screw having a second longitudinal axis different from the first longitudinal axis, configured to selectively move the second portion of the tab between the retracted position and the extended position; and a position locking mechanism operably coupled with each of the first and second extension assemblies and configured to provide a plurality of locking positions that the first and second extension assemblies are biased to stay in by the position locking mechanism. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A bone fusion device for insertion into a desired location comprising:
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a body having an interior cavity; a tab having a first portion and a second portion, the tab configured to fit within the interior cavity and selectively move from a retracted position within interior cavity of the body to an extended position extending out of the body; a first extension assembly coupled to the first portion of the tab and configured to move the first portion of the tab between the retracted position and the extended position, the first extension assembly comprising a first drive screw having a first longitudinal axis to control extension of the first extension assembly; and a second extension assembly coupled to the second portion of the tab and configured to move the second portion of the tab between the retracted position and the extended position, the second extension assembly comprising a second drive screw having a second longitudinal axis different from the first longitudinal axis, to control extension of the second extension assembly; wherein the first drive screw and the second drive screw are independently turned to selectively move the first portion of the tab and the second portion of the tab. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification