Expandable Intervertebral Spacers and Methods of Use
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Abstract
An intervertebral spacer for positioning between vertebral members. The spacer may include contact surfaces that are configured to contact against the vertebral members. A fluid cylinder may be positioned between the first and second contact surfaces and configured to contain a fluid. The fluid cylinder may include an outer cylinder with an open first end that telescopingly receives an inner cylinder. The spacer is configured to maintain the distance between the contact surfaces at a desired amount.
22 Citations
40 Claims
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1-20. -20. (canceled)
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21. An intervertebral spacer comprising:
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a first contact surface; a second contact surface; a fluid chamber positioned between the first and second contact surfaces and configured to contain a fluid, the fluid chamber including an outer member with an open end, a sidewall, and a closed end, the outer member telescopingly receives an inner member; a slot in the sidewall of the outer member that extends inward from the open end; and a seal positioned in the slot to prevent the fluid from leaking from the fluid chamber. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. An intervertebral spacer comprising:
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a first contact surface; a second contact surface; a fluid chamber positioned between the first and second contact surfaces and configured to contain a fluid, the fluid chamber including an outer member with an open end that telescopingly receives an inner member; a slot that extends through the outer member and intersects with the fluid chamber; and an elongated retaining mechanism that extends across the slot and includes longitudinal first and second sections, the first section of the retaining mechanism positioned in the outer member on a first side of the slot and the second section of the retaining mechanism positioned in the outer member on an opposing second side of the slot, the outer member being movable relative to the outer member to adjust a width of the slot. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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35. An intervertebral spacer comprising:
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a first contact surface; a second contact surface; a fluid chamber positioned between the first and second contact surfaces and configured to contain a fluid, the fluid chamber including an outer member with an open first end that telescopingly receives an inner member; a slot that extends through the outer member at the open first end and intersects with the fluid chamber; and a seal positioned in the slot to prevent the fluid from leaking from the fluid chamber. - View Dependent Claims (36, 37, 38, 39, 40)
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Specification