Methods and systems for repairing an intervertebral disc using a transcorporal approach
First Claim
1. A method for accessing and repairing an intervertebral disc in the spine comprising:
- engaging a trajectory control apparatus to a non-endplate surface of a vertebral body;
forming a transcorporal channel in a vertebral body with a trajectory that extends from a non end-plate surface to an end plate where a channel opening communicates into an intervertebral space;
implanting into the transcorporal channel a spinal repair device sized and configured to occupy at least a portion of the channel, the implanted spinal repair device comprising an internal lumen and a back flow control element located in the lumen;
evacuating substantially all gas from the intravertebral space; and
injecting a disc replacement material through the implanted spinal repair device and directly into a void within a space formerly occupied by at least a portion of the intervertebral disc and allowing gas from within the intervertebral space to escape through the spinal repair device during the injecting step, such that the void is substantially entirely filled with disc replacement material.
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Accused Products
Abstract
The invention includes a system and methods for performing surgery on a spinal disc. The system includes an implantable bone plate with an access port to accommodate a bone cutting device, a spinal repair device insertable through the access port of the bone plate configured to occupy a surgically-formed vertebral channel from an anterior surface of the host vertebral body to a site central to an end plate of the host vertebral body, a trajectory control sleeve engageable to the bone plate to direct the trajectory of a cutting device, and a cutting device engageable within the trajectory control sleeve. Methods are directed to forming a vertebral channel and restoring the vertebral body and disc with devices that both repair the bone and the disc.
124 Citations
21 Claims
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1. A method for accessing and repairing an intervertebral disc in the spine comprising:
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engaging a trajectory control apparatus to a non-endplate surface of a vertebral body; forming a transcorporal channel in a vertebral body with a trajectory that extends from a non end-plate surface to an end plate where a channel opening communicates into an intervertebral space; implanting into the transcorporal channel a spinal repair device sized and configured to occupy at least a portion of the channel, the implanted spinal repair device comprising an internal lumen and a back flow control element located in the lumen; evacuating substantially all gas from the intravertebral space; and injecting a disc replacement material through the implanted spinal repair device and directly into a void within a space formerly occupied by at least a portion of the intervertebral disc and allowing gas from within the intervertebral space to escape through the spinal repair device during the injecting step, such that the void is substantially entirely filled with disc replacement material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for accessing and repairing an intervertebral disc in the spine comprising:
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engaging a trajectory control apparatus to a surface of a host vertebral body; forming a transcorporal channel within a host vertebral body, the channel extending from a surface of the host vertebral body on a trajectory toward an intervertebral disc between the host vertebral body and an adjacent vertebral body, and extending at least as far as the end plate of the host vertebral body; implanting a spinal repair device configured to fit into the channel and extending into the intervertebral space, the implanted spinal repair device comprising an internal lumen and a back flow control element located in the lumen; evacuating substantially all gas from the intravertebral space; and injecting a disc replacement material through the implanted spinal repair device and directly into a void within a space formerly occupied by at least a portion of the intervertebral disc and allowing gas from within the intervertebral space to escape through the spinal repair device during the injecting step, such that the void is substantially entirely filled with disc replacement material. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification