Systems and methods for posterior dynamic stabilization of the spine
First Claim
Patent Images
1. A method for treating a subject, comprising:
- forming an opening at a location posterior to the subject'"'"'s supraspinous ligament;
moving a cannula through the opening;
positioning the cannula directly between adjacent spinous processes;
moving a treatment apparatus in a posterior-anterior direction relative to the subject such that at least a portion of the treatment apparatus moves out an end portion of the cannula and into an interspinous space between the adjacent spinous processes; and
performing at least a portion of a spinal procedure using the treatment apparatus while the treatment apparatus is positioned in the cannula located in the opening, a mid-sagittal plane of the subject extends through the end portion of the cannula, and the treatment apparatus is positioned directly between the adjacent spinous processes, wherein the spinal procedure is a nerve decompression procedure.
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Abstract
Devices, systems and methods for dynamically stabilizing the spine are provided. The devices include an 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.
579 Citations
34 Claims
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1. A method for treating a subject, comprising:
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forming an opening at a location posterior to the subject'"'"'s supraspinous ligament; moving a cannula through the opening; positioning the cannula directly between adjacent spinous processes; moving a treatment apparatus in a posterior-anterior direction relative to the subject such that at least a portion of the treatment apparatus moves out an end portion of the cannula and into an interspinous space between the adjacent spinous processes; and performing at least a portion of a spinal procedure using the treatment apparatus while the treatment apparatus is positioned in the cannula located in the opening, a mid-sagittal plane of the subject extends through the end portion of the cannula, and the treatment apparatus is positioned directly between the adjacent spinous processes, wherein the spinal procedure is a nerve decompression procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16, 17, 18)
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14. A method for treating a subject comprising:
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forming an opening at a location posterior to the subject'"'"'s supraspinous ligament; moving a cannula through the opening; positioning the cannula directly between adjacent spinous processes; moving a treatment apparatus in a posterior-anterior direction relative to the subject such that at least a portion of the treatment apparatus moves out an end portion of the cannula and into an interspinous space between the adjacent spinous processes; and performing at least a portion of a spinal procedure using the treatment apparatus while the treatment apparatus is positioned in the cannula located in the opening and a mid-sagittal plane of the subject extends through the end portion of the cannula positioned directly between the adjacent spinous processes, wherein performing the portion of the spinal procedure includes deploying an interspinous spacer device of the treatment apparatus to distract and/or stabilize adjacent vertebrae. - View Dependent Claims (15)
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19. A method for treating a subject, comprising:
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forming an opening at a location posterior to the subject'"'"'s supraspinous ligament; moving a cannula through the opening; positioning the cannula directly between adjacent spinous processes; moving a treatment apparatus in a posterior-anterior direction relative to the subject such that at least a portion of the treatment apparatus moves out an end portion of the cannula and into an interspinous space between the adjacent spinous processes, wherein the treatment apparatus includes an interspinous spacer device and a delivery instrument, and wherein the delivery instrument is configured to mechanically expand the interspinous spacer device and is configured to release the interspinous spacer device; and performing at least a portion of a spinal procedure using the treatment apparatus while the treatment apparatus is positioned in the cannula located in the opening, a mid-sagittal plane of the subject extends through the end portion of the cannula, and the treatment apparatus is positioned directly between the adjacent spinous processes.
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20. A method for treating a subject, comprising:
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moving a tissue-penetrating instrument through the subject'"'"'s skin and supraspinous ligament; positioning a cannula through the supraspinous ligament; removing the tissue-penetrating instrument from the cannula while the cannula extends through the supraspinous ligament; and delivering a treatment apparatus through the cannula to move the treatment apparatus toward a space between adjacent vertebrae while at least a portion of the cannula is positioned directly between the adjacent vertebrae and along the subject'"'"'s mid-sagittal plane; and performing at least a portion of a nerve decompression procedure using the treatment apparatus while the treatment apparatus is positioned in the cannula that extends through the supraspinous ligament. - View Dependent Claims (21, 22, 23, 24)
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25. A method for treating a subject, comprising:
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moving a tissue-penetrating instrument through the subject'"'"'s skin and supraspinous ligament; positioning a cannula through the supraspinous ligament; removing the tissue-penetrating instrument from the cannula while the cannula extends through the supraspinous ligament; delivering a treatment apparatus through the cannula to move the treatment apparatus toward a space between adjacent vertebrae while at least a portion of the cannula is positioned directly between the adjacent vertebrae and along the subject'"'"'s mid-sagittal plane, wherein the treatment apparatus includes a delivery instrument and an interspinous device; expanding the interspinous device using the delivery instrument; releasing the interspinous device from the delivery instrument; and removing the delivery instrument from the cannula after releasing the interspinous device within the subject.
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26. A method for treating a subject, comprising:
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moving a cannula into the subject using a midline approach; moving a deployable device through the cannula while an end of the cannula is positioned directly between midplanes of two spinous processes; positioning the deployable device at an interspinous space; expanding the deployable device after positioning the deployable device at the interspinous space to distract and/or stabilize adjacent vertebrae with the two spinous processes; releasing the deployable device from a delivery instrument positioned in the cannula; and removing the delivery instrument from the cannula after releasing the deployable device within the subject. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A method for treating a subject, comprising:
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forming a midline opening; moving a cannula through the midline opening to separate tissue positioned directly between adjacent spinous processes; delivering a cutting instrument through the cannula to cut tissue while the cannula is positioned in the midline opening and the subject'"'"'s mid-sagittal plane extends through an end portion of the cannula and is located directly between the adjacent spinous processes; removing the cutting instrument from the cannula; delivering an interspinous spacer device through the cannula after removing the cutting instrument; and deploying the interspinous spacer device using a delivery instrument positioned in a lumen of the cannula. - View Dependent Claims (34)
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Specification