Systems and methods for posterior dynamic stabilization of the spine
First Claim
1. An interspinous device for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the device comprising:
- a metal member having side portions, end portions and apexes defined between the side portions and the end portions, wherein the end portions are recessed to provide a narrowed central portion, wherein the metal member has a delivery configuration and a deployed configuration, wherein the metal member in the delivery configuration has a narrow, elongated generally cylindrical shape configured to be translated through a delivery cannula, and wherein the side portions of the metal member project from the central portion to have a substantially H-shaped configuration of a size and shape configured for positioning between and providing distraction of the first and second spinous processes in the deployed configuration.
1 Assignment
0 Petitions
Accused Products
Abstract
Devices, systems and methods for dynamically stabilizing the spine are provided. The devices include an expandable spacer or member having an unexpanded configuration and an expanded configuration, wherein the expandable member in an expanded configuration has a size, volume and/or shape configured for positioning between the spinous processes of adjacent vertebrae in order to distract the vertebrae relative to each other. The systems include one or more expandable members and an expansion medium for injection within or for filling the interior of the expandable member via the port. The methods involve the implantation of one or more devices or expandable spacers.
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Citations
9 Claims
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1. An interspinous device for stabilizing at least one spinal motion segment comprising a first vertebra having a first spinous process and a second vertebra having a second spinous process, the device comprising:
a metal member having side portions, end portions and apexes defined between the side portions and the end portions, wherein the end portions are recessed to provide a narrowed central portion, wherein the metal member has a delivery configuration and a deployed configuration, wherein the metal member in the delivery configuration has a narrow, elongated generally cylindrical shape configured to be translated through a delivery cannula, and wherein the side portions of the metal member project from the central portion to have a substantially H-shaped configuration of a size and shape configured for positioning between and providing distraction of the first and second spinous processes in the deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification