Systems and methods for posterior dynamic stabilization of the spine
First Claim
1. A method for stabilizing a superior vertebra having a superior spinous process relative to an inferior vertebra having an inferior spinous process, wherein the superior and inferior spinous processes define an interspinous space, the method comprising:
- inserting an interspinous device into the interspinous space by moving the interspinous device anteriorly substantially along a midline relative to the superior and inferior spinous processes through an incision located posterior of the interspinous space;
moving a superior strut unit of the interspinous device by radial expansion to extend superiorly such that the superior spinous process is seated between first and second superior struts of the superior strut unit, wherein the superior strut unit is moved after implanting the interspinous device; and
moving an inferior strut unit of the interspinous device by radial expansion to extend inferiorly such that the inferior spinous process is seated between first and second inferior struts of the inferior strut unit, wherein the inferior strut unit is moved after implanting the interspinous device.
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Accused Products
Abstract
Devices, systems and methods for dynamically stabilizing the spine are provided. The devices include a radially expandable spacer having an undeployed configuration and a deployed configuration, wherein the spacer has axial and radial dimensions for positioning between the spinous processes of adjacent vertebrae. The systems include one or more spacers and a mechanical actuation means for delivering and deploying the spacer. The methods involve the implantation of one or more spacers within the interspinous space.
561 Citations
22 Claims
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1. A method for stabilizing a superior vertebra having a superior spinous process relative to an inferior vertebra having an inferior spinous process, wherein the superior and inferior spinous processes define an interspinous space, the method comprising:
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inserting an interspinous device into the interspinous space by moving the interspinous device anteriorly substantially along a midline relative to the superior and inferior spinous processes through an incision located posterior of the interspinous space; moving a superior strut unit of the interspinous device by radial expansion to extend superiorly such that the superior spinous process is seated between first and second superior struts of the superior strut unit, wherein the superior strut unit is moved after implanting the interspinous device; and moving an inferior strut unit of the interspinous device by radial expansion to extend inferiorly such that the inferior spinous process is seated between first and second inferior struts of the inferior strut unit, wherein the inferior strut unit is moved after implanting the interspinous device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for stabilizing a superior vertebra having a superior spinous process relative to an inferior vertebra having an inferior spinous process, comprising:
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creating an incision at a midline located posterior of the interspinous space; inserting an interspinous device into the interspinous space by moving the interspinous device anteriorly relative to the incision; and changing the interspinous device from an undeployed configuration to a deployed configuration by radial expansion, wherein the interspinous device includes a pair of inferior struts and a pair of superior struts which are configured to have a low profile in the undeployed configuration relative to the deployed configuration, and wherein the inferior struts of the interspinous device are configured to seat the inferior spinous processes in the deployed configuration and the superior struts of the interspinous device are configured to seat the superior spinous processes in the deployed configuration, and thereby relieve pain. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification