Expandable support device and method of use
First Claim
1. An expandable support device for placement within or between spinal vertebral bodies, comprising:
- a radially non-expandable near end portion, a radially non-expandable far end portion and a longitudinal axis extending therebetween;
backbone struts parallel to the longitudinal axis, the backbone struts each having a near end integral with the near end portion and a far end integral with the far end portion;
deformable support struts located between each adjacent backbone strut, wherein the support struts have a support strut width perpendicular to the longitudinal axis, and wherein the support struts have a support strut thickness parallel to the longitudinal axis, and wherein the support strut width is greater than the support strut thickness; and
where each support strut is deformable such that, upon longitudinal expansion of the expandable support device from a radially expanded configuration, the adjacent backbone struts approach each other while the support struts deform;
wherein a support strut comprises a bend when the device is in a radially contracted configuration, and wherein the bend defines an edge having a surface that is coincidental with the outer surface of the expandable support device;
wherein when the device is in a radially contracted configuration a first length of the backbone struts is the same shape as the first length of the backbone struts when the device is in a radially expanded configuration;
wherein when the device is in a radially expanded configuration, the device has a lumen along the longitudinal axis, and wherein the lumen is at least partially filled with a filler;
wherein an outer cross section of the device perpendicular to the longitudinal axis when the device is in a radially expanded configuration is quadrilateral; and
wherein lengths of at least two backbone struts are parallel with each other when the device is in a radially expanded configuration.
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Accused Products
Abstract
An expandable support device for tissue repair is disclosed. The device can be used to repair hard or soft tissue, such as bone or vertebral discs. The device can have multiple flat sides that remain flat during expansion. A method of repairing tissue is also disclosed. Devices and methods for adjusting (e.g., removing, repositioning, resizing) deployed orthopedic expandable support devices are also disclosed. The expandable support devices can be engaged by an engagement device. The engagement device can longitudinally expand the expandable support device. The expandable support device can be longitudinally expanded until the expandable support device is substantially in a pre-deployed configuration. The expandable support device can be then be physically translated and/or rotated.
577 Citations
22 Claims
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1. An expandable support device for placement within or between spinal vertebral bodies, comprising:
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a radially non-expandable near end portion, a radially non-expandable far end portion and a longitudinal axis extending therebetween; backbone struts parallel to the longitudinal axis, the backbone struts each having a near end integral with the near end portion and a far end integral with the far end portion; deformable support struts located between each adjacent backbone strut, wherein the support struts have a support strut width perpendicular to the longitudinal axis, and wherein the support struts have a support strut thickness parallel to the longitudinal axis, and wherein the support strut width is greater than the support strut thickness; and where each support strut is deformable such that, upon longitudinal expansion of the expandable support device from a radially expanded configuration, the adjacent backbone struts approach each other while the support struts deform; wherein a support strut comprises a bend when the device is in a radially contracted configuration, and wherein the bend defines an edge having a surface that is coincidental with the outer surface of the expandable support device; wherein when the device is in a radially contracted configuration a first length of the backbone struts is the same shape as the first length of the backbone struts when the device is in a radially expanded configuration; wherein when the device is in a radially expanded configuration, the device has a lumen along the longitudinal axis, and wherein the lumen is at least partially filled with a filler; wherein an outer cross section of the device perpendicular to the longitudinal axis when the device is in a radially expanded configuration is quadrilateral; and wherein lengths of at least two backbone struts are parallel with each other when the device is in a radially expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 20)
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12. An expandable support device for placement within or between spinal vertebral bodies, comprising:
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a radially non-expandable near end portion, a radially non-expandable far end portion and a longitudinal axis extending therebetween; backbone struts parallel to the longitudinal axis, the backbone struts each having a near end integral with the near end portion and a far end integral with the far end portion; deformable support struts located between each adjacent backbone strut; and where each support strut is deformable such that, upon longitudinal expansion of the expandable support device from a radially expanded configuration, the adjacent backbone struts approach each other while the support struts deform; and wherein when the device is in a radially expanded configuration, the device has a lumen along the longitudinal axis, and wherein the lumen is at least partially filled with a filler; and wherein an outer cross section of the device perpendicular to the longitudinal axis when the device is in a radially expanded configuration is quadrilateral, and wherein at least one support strut comprises a bend when the device is in a radially contracted configuration, and wherein the bend defines an edge having a surface that is coincidental with the outer surface of the expandable support device. - View Dependent Claims (13, 14, 15, 21)
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16. An expandable support device for placement within or between spinal vertebral bodies, comprising:
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a radially non-expandable near end portion, a radially non-expandable far end portion and a longitudinal axis extending therebetween; backbone struts parallel to the longitudinal axis, the backbone struts each having a near end integral with the near end portion and a far end integral with the far end portion; deformable support struts located between each adjacent backbone strut, wherein at least a first support strut and a second support strut located between an adjacent pair of backbone struts are flat when the device is in a radially expanded configuration; and where each support strut is deformable such that, upon longitudinal expansion of the expandable support device from a radially expanded configuration, the adjacent backbone struts approach each other while the support struts deform; wherein when the device is in a radially contracted configuration a first length of the backbone struts is the same shape as the first length of the backbone struts when the device is in a radially expanded configuration; wherein when the device is in a radially expandable configuration, the device has a lumen along the longitudinal axis, and wherein the lumen is at least partially filled with a filler; wherein an outer cross section of the device perpendicular to the longitudinal axis when the device is in a radially expanded configuration is quadrilateral; wherein at least one support strut comprises a bend when the device is in a radially contracted configuration, and wherein the bend defines an edge having a surface that is coincidental with the outer surface of the expandable support device; and wherein a flat plane is defined by the outer surfaces of the support struts between a first backbone strut and a second backbone strut adjacent to the first backbone strut. - View Dependent Claims (17, 18, 19, 22)
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Specification