Devices and methods for the restoration of a spinal disc
First Claim
Patent Images
1. A method for injecting a fluent material into a disc space comprising the steps of:
- creating a portal in the annulus fibrosis in communication with the intradiscal space;
impacting a cannulated distractor into the portal, the distractor configured to distract the vertebrae adjacent the intradiscal space and to establish a disc space height between the adjacent vertebrae; and
introducing the fluent material into the intradiscal space through a lumen of the cannulated distractor while the distractor maintains the established disc space height.
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Abstract
A system and method is provided for maintaining a proper intervertebral disc height during the replacement or augmentation of the spinal disc. In one embodiment, a cannulated distractor is used to distract the adjacent vertebrae and maintain a proper disc space height. The cannulated distractor is fluidly connected to a source of fluent material for injection into the disc space. The distraction includes a distraction tip resident within the disc space that includes a central lumen and a number of openings communicating with the lumen to dispense the fluent material within the disc space.
389 Citations
42 Claims
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1. A method for injecting a fluent material into a disc space comprising the steps of:
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creating a portal in the annulus fibrosis in communication with the intradiscal space; impacting a cannulated distractor into the portal, the distractor configured to distract the vertebrae adjacent the intradiscal space and to establish a disc space height between the adjacent vertebrae; and introducing the fluent material into the intradiscal space through a lumen of the cannulated distractor while the distractor maintains the established disc space height. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for injecting a fluent material into a disc space comprising the steps of:
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creating a portal in the annulus fibrosis in communication with the intradiscal space; placing a cannulated distractor into the portal, the distractor configured after placement to distract the vertebrae adjacent the intradiscal space and to establish a disc space height between the adjacent vertebrae; and introducing the fluent material into the intradiscal space through a lumen of the cannulated distractor while the distractor maintains the established disc space height. - View Dependent Claims (18, 19, 20, 21)
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22. A device for injecting a fluent material into a disc space comprising:
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a distraction member having opposite surfaces configured to distract adjacent vertebrae to the disc space, the distraction member having a proximal end and a distal end portion, at least the distal end portion configured to be disposed within the disc space; a fluid passageway defined between said proximal end and said distal end portion, said fluid passageway defining an opening at said proximal end and at said distal end portion; and said proximal end of said distraction member being configured for fluidly connecting said distraction member to a source of the fluent material. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification