EXPANDING INTERVERTEBRAL DEVICE AND METHODS OF USE
First Claim
1. A spinal stabilization device, the device comprising:
- a plurality of elongate arms having a distal end portion and a proximal end portion, wherein the elongate arms define an interior volume between the distal end portion and the proximal end portion;
a limit band coupled circumferentially to the plurality of elongate arms; and
a tensioning element positioned within the interior volume;
wherein the plurality of elongate arms passively transition from a constrained, delivery configuration that is radially contracted and axially elongated to a relaxed, deployment configuration that is radially expanded and axially shortened and configured to be released within an intervertebral disc space.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a spinal stabilization device having a plurality of elongate arms having a distal end portion and a proximal end portion, wherein the elongate arms define an interior volume between the distal end portion and the proximal end portion; at least one limit band coupled circumferentially to one or more of the plurality of elongate arms; and a tensioning element positioned within the interior volume. The plurality of elongate arms can transition from a constrained, delivery configuration that is radially contracted and axially elongated to a relaxed, deployment configuration that is radially expanded and axially shortened.
216 Citations
50 Claims
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1. A spinal stabilization device, the device comprising:
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a plurality of elongate arms having a distal end portion and a proximal end portion, wherein the elongate arms define an interior volume between the distal end portion and the proximal end portion; a limit band coupled circumferentially to the plurality of elongate arms; and a tensioning element positioned within the interior volume; wherein the plurality of elongate arms passively transition from a constrained, delivery configuration that is radially contracted and axially elongated to a relaxed, deployment configuration that is radially expanded and axially shortened and configured to be released within an intervertebral disc space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A vertebral interbody fusion system comprising:
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an interbody device comprising a plurality of elongate arms having a distal end portion and a proximal end portion, wherein the elongate arms define an interior volume between the distal end portion and the proximal end portion of the interbody device, and at least one limit band coupled circumferentially to one or more of the plurality of elongate arms, the interbody device capable of transitioning from a constrained, delivery configuration that is radially contracted and axially elongated to a relaxed, deployed configuration that is radially expanded and axially shortened; a tensioning element positioned within the interior volume, the tensioning element comprising a linkage rod and a locking end cap; and a cannula assembly configured to couple to the interbody device, the cannula assembly comprising a slidable containment sleeve having a lumen sized to contain the interbody device in the delivery configuration, a control sleeve having a distal coupling element that couples to the proximal end portion of the interbody device, and a locking driver element; wherein the interbody device transitions from the delivery configuration to the deployed configuration upon proximal withdrawal of the containment sleeve. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A method of manufacturing a spinal stabilization device, comprising:
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providing a tubular element having an inner passageway and an axial length, the tubular element being made of a shape memory material; providing a laser system; removing portions of the tubular element with the laser system using cut lines parallel to the axial length of the tubular element, wherein removing portions defines openings through the element and creates a plurality of elongate, axially-aligned flexible arms surrounding the inner passageway having a first thickness and a plurality of spaces between the arms; removing a layer of material from the arms with the laser system using cut lines transverse to the axial length of the tubular element, wherein removing the layer of material creates regions of the arms having a second thickness that is thinner than the first thickness; setting the shape memory of the tubular element in a radially expanded, axially foreshortened configuration; coupling a flexible, limit band circumferentially to the plurality of arms to the regions of the arms having the second thickness; and compressing the tubular element into a radially contracted, axially elongated configuration. - View Dependent Claims (47, 48, 49, 50)
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Specification