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US 7,731,737 B2Granted
Methods and apparatuses for fixation of the spine through an access device
AssigneeZimmer Spine, Inc.
InventorGene DiPoto
Life of this patent
Estimating the term…
Abstract
In a method of treating the spine of a patient, an access device is inserted into the patient with the access device in a first configuration having a first cross-sectional area at a distal portion thereof. The access device is actuated to a second configuration having an enlarged cross-sectional area at the distal portion thereof such that the distal portion extends across at least a portion of each of two adjacent vertebrae. A stabilization of the vertebrae is then achieved using either translaminar facet screw fixation or transfacet pedicle screw fixation.
Claims26
A method of fixing adjoining vertebrae of the spine of a patient, comprising:
- inserting into said patient a single access device to a surgical location adjacent the spine with said access device in a first configuration having a first cross-sectional area at a distal portion thereof, said access device having a proximal portion pivotably attached to a distal portion;
- actuating said access device to a second configuration having an enlarged cross-sectional area at said distal portion thereof, such that said distal portion provides access to two or more facet joints;
- delivering a first fastener through the access device to the surgical location;
- advancing said first fastener through a first vertebra and into a second vertebra through a first facet joint;
- pivoting the proximal portion of said access device relative to the distal portion to change the angle of the access device to facilitate insertion of a second fastener;
- delivering said second fastener through said access device to the surgical location;
- and
- advancing said second fastener through said first vertebra and into said second vertebra through a second facet joint.
5 more elements
A method of treating a spine of a patient, comprising:
- inserting a first access device into said patient to a surgical location adjacent the spine with said first access device positioned on a first side of spinous processes of first and second vertebrae, said first access device in a first configuration having a first cross-sectional area at a distal portion thereof, said first access device having a proximal portion pivotably attached to a distal portion;
- actuating said first access device to a second configuration having an enlarged cross-sectional area at said distal portion thereof;
- pivoting the proximal portion of said first access device relative to the distal portion to provide access to at least a first facet joint;
- inserting a second access device into said patient to a second surgical location adjacent the spine with said second access device positioned on a second side of spinous processes of said first and second vertebrae, said second access device in a first configuration having a first cross-sectional area at a distal portion thereof, said second access device having a proximal portion pivotably attached to a distal portion;
- actuating said second access device to a second configuration having an enlarged cross-sectional area at said distal portion thereof;
- pivoting the proximal portion of said second access device relative to the distal portion to provide access to at least a second facet joint;
- fastening a first fastener through the first vertebra and into the second vertebra through the first facet joint, said first fastener delivered through said first access device;
- and
- fastening a second fastener though the first vertebra and into the second vertebra though the second facet joint, said second fastener delivered though said second access device, said first and second fasteners providing a transfacet fixation method substantially preventing movement of the first vertebra relative to the second vertebra.
6 more elements
A method of fixing adjoining vertebrae of the spine of a patient, comprising:
- inserting into said patient a single access device with said access device in a first configuration having a first cross-sectional area at a distal portion thereof, said access device having a proximal portion pivotably attached to a distal portion;
- actuating said access device to a second configuration having an enlarged cross-sectional area at said distal portion thereof exposing a first surgical location adjacent the spine and a second surgical location adjacent the spine, wherein said access device is positioned such that a spinous process of at least a first vertebra is within or adjacent a working space defined by the distal end of the access device in the second configuration;
- delivering a first fastener through the access device to the first surgical location at a first facet joint;
- advancing said first fastener through a first vertebra and into a second vertebra at the first facet joint;
- pivoting the proximal portion of the access device relative to the distal portion to provide access to a second facet joint;
- delivering a second fastener to the second surgical location at the second facet joint through the access device;
- and
- advancing the second fastener through the first vertebra and into the second vertebra at the second facet joint, said first and second fasteners substantially preventing movement of the first vertebra relative to the second vertebra.
5 more elements
A method of performing a translaminar fixation of adjoining vertebrae of the spine of a patient, comprising:
- inserting into said patient an access device having a medial side to a first surgical location on a first side of the spine, the access device having a first cross-sectional area at a distal portion thereof during insertion, the first access device having a proximal portion pivotably attached to the distal portion;
- actuating said access device such that said distal portion has an enlarged cross-sectional area, wherein during said actuating said medial side of the access device moves toward the spinous process of a first vertebra;
- pivoting the proximal portion of the access device relative to the distal portion to provide access along a line extending through the spinous process and through the facet joint on a second side of the spine;
- delivering a first fastener through the access device to the surgical location;
- and
- advancing said first fastener through the spinous process of the first vertebra and into a second vertebra through a first facet joint.
3 more elements
Dependencies are inferred from the claim text.