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US 8,801,757 B2Granted
Spinal stabilization systems and methods of use
AssigneeNuVasive, Inc.
InventorSamy Abdou
Life of this patent
Estimating the term…
Abstract
Devices and methods are adapted to permit fixation and stabilization of the bony elements of the skeleton. The devices permit adjustment and maintenance of the spatial relationship between neighboring bones. The motion between adjacent skeletal segments may be maintained, limited or completely eliminated.
Claims16
An orthopedic assembly, comprising:
- a first bone screw having a head and a threaded distal portion, said threaded distal portion configured to fixate into a first vertebral bone;
- a second bone screw having a head and a threaded distal portion, said threaded distal portion configured to fixate into said first vertebral bone;
- a bone fixation assembly comprising a first bone plate and a second bone plate separate from and independently positionable relative to said first bone plate, said first and second bone plates substantially aligned to face one another and configured to fixate onto opposing sides of a spinous process of a second vertebral bone, said first bone plate configured to be coupled to said head of said first bone screw, said second bone plate configured to be coupled to said head of said second bone screw, a first locking mechanism configured to rigidly immobilize said first bone screw relative to said first bone plate, and a second locking mechanism configured to rigidly immobilize said second bone screw relative to said second bone plate,
- wherein said bone fixation assembly further comprises a connecting member configured to attach said first bone plate to said second bone plate, and
- wherein said first bone screw comprises a bone screw assembly configured to fixate onto a first vertebral bone, said bone screw assembly further comprising a housing member having a first seat configured to contain at least a segment of said first bone screw, a second seat configured to contain at least a first segment of a connecting rod, and a third locking mechanism configured to rigidly immobilize said first bone screw and connecting rod.
2 more elements
An orthopedic assembly configured to stabilize a first vertebral bone relative to a second vertebral bone, comprising
- a bone fixation assembly comprising a first and a second bone plate and a connecting rod, said first and second bone plate disposed so as to substantially face one another, and configured to fixate onto opposing sides of a spinous process of a first vertebral bone, said first bone plate comprising a seat configured to receive a first segment of said connecting rod, and a first locking mechanism configured to rigidly immobilize said first bone plate and said first segment of the connecting rod;
- and
- a bone screw assembly configured to fixate onto a second vertebral bone comprising a bone screw and a housing member, said housing member comprising a first seat configured to contain at least a segment of said bone screw, a second seat configured to contain at least a second segment of said connecting rod, and a second locking mechanism configured to rigidly immobilize said bone screw and said connecting rod;
- wherein said first bone plate has a longitudinal axis that may be positioned in one of a plurality of different angular orientations relative to a longitudinal axis of said connecting rod.
1 more element
An orthopedic assembly configured to stabilize a first vertebral bone relative to a second vertebral bone, comprising
- a bone fixation assembly comprising a first and a second bone plate, a plate connecting member and a connecting rod, said first and second bone plate disposed so as to substantially face one another, and configured to fixate onto opposing sides of a spinous process of a first vertebral bone, said plate connecting member configured to attach said first bone plate to said second bone plate, said first bone plate comprising a seat configured to receive a first segment of said connecting rod, and a first locking mechanism configured to rigidly immobilize said first bone plate and said first segment of the connecting;
- and
- a bone screw assembly configured to fixate onto a second vertebral bone comprising a bone screw and a housing member, said housing member comprising a first seat configured to contain at least a segment of said bone screw, a second seat configured to contain at least a second segment of said connecting rod, and a second locking mechanism configured to rigidly immobilize said bone screw and said connecting rod;
- wherein said first bone plate has a longitudinal axis that may be positioned in one of a plurality of different angular orientations relative to a longitudinal axis of said plate connecting member.
1 more element
Dependencies are inferred from the claim text.