Implant assembly and method for use in an internal structure stabilization system
First Claim
1. An assembly for use in spinal stabilization procedures, comprising:
- a first bone anchor assembly comprising;
a first anchora first poly-axial head mated with the anchor such that the anchor is movable in relation to the poly-axial head, the first poly-axial head including a cavity; and
a second bone anchor assembly comprising;
a second anchor;
a second poly-axial head mated with the second anchor such that the second anchor is movable in relation to said second poly-axial head;
a slide ring rotatably mated in the second poly-axial head;
a connector slidably mated in the slide ring along a distal end, and having a proximal end having an enlarged portion;
wherein the connector is movable from a first position axially inline with the second bone anchor to a second position wherein the enlarged portion of the connector rests in the cavity of the first poly-axial head, and wherein the first position is used to implant the first bone anchor assembly, and the second position used to hold the assembly in a fixed orientation; and
a snap ring in the first poly-axial head, the snap ring holding the enlarged portion of the connector in the cavity.
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Accused Products
Abstract
An assembly for use in spinal stabilization procedures having first and second bone anchor assemblies. Embodiments of the first bone anchor assembly may include an anchor, a poly-axial head, including a cavity, mated with the anchor such that the anchor is movable relative to the poly-axial head. Embodiments of the second bone anchor assembly may include an anchor, a poly-axial head mated with the second anchor such that the anchor is movable relative to the poly-axial head, a slide ring rotatably mated in the second poly-axial head, and a connector slideably mated in the slide ring along a distal end, and having a proximal end having an enlarged portion. The connector may be movable from a first position axially inline with the second bone anchor to a second position wherein the enlarged portion of the connector rests in the cavity of the first poly-axial head.
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Citations
18 Claims
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1. An assembly for use in spinal stabilization procedures, comprising:
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a first bone anchor assembly comprising; a first anchor a first poly-axial head mated with the anchor such that the anchor is movable in relation to the poly-axial head, the first poly-axial head including a cavity; and a second bone anchor assembly comprising; a second anchor; a second poly-axial head mated with the second anchor such that the second anchor is movable in relation to said second poly-axial head; a slide ring rotatably mated in the second poly-axial head; a connector slidably mated in the slide ring along a distal end, and having a proximal end having an enlarged portion; wherein the connector is movable from a first position axially inline with the second bone anchor to a second position wherein the enlarged portion of the connector rests in the cavity of the first poly-axial head, and wherein the first position is used to implant the first bone anchor assembly, and the second position used to hold the assembly in a fixed orientation; and a snap ring in the first poly-axial head, the snap ring holding the enlarged portion of the connector in the cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An assembly for use in spinal stabilization procedures, comprising:
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a first bone anchor assembly comprising; a first anchor a first poly-axial head mated with the anchor such that the anchor is movable in relation to the poly-axial head, the first poly-axial head including a cavity; and a second bone anchor assembly comprising; a second anchor; a second poly-axial head mated with the second anchor such that the second anchor is movable in relation to said second poly-axial head; a slide ring rotatably mated in the second poly-axial head; a connector slidably mated in the slide ring along a distal end, and having a proximal end having an enlarged portion; wherein the connector is movable from a first position axially inline with the second bone anchor to a second position wherein the enlarged portion of the connector rests in the cavity of the first poly-axial head, and wherein the first position is used to implant the first bone anchor assembly, and the second position used to hold the assembly in a fixed orientation; and wherein the connector includes a drive mechanism mated to a drive mechanism of the second anchor when the connector is in the first position, the connector operable in the first position to transfer torque from a tool to the second anchor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification