Back to results
US 8,226,690 B2Granted
Systems and methods for stabilization of bone structures
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsMoti Altarac, Joey Reglos, Stanley Kyle Hayes, Daniel H. Kim, J. Christopher Flaherty
Life of this patent
Estimating the term…
Abstract
Methods, systems, devices and tools for placing bone stabilization components in a patient are provided. The systems and devices have a reduced number of discrete components that allow placement through small incisions and tubes. More particularly, the present invention is directed to systems and methods of treating the spine, which eliminate pain and enable spinal motion, which effectively mimics that of a normally functioning spine. Methods are also provided for stabilizing the spine and for implanting the subject systems.
Claims60
A spinal stabilization system, comprising:
- a first bone anchor configured for spinal engagement into a first vertebra during use, wherein the first bone anchor comprises a seat;
- an arm member having a proximal end and a distal end;
- wherein the proximal end of the arm member comprises a seat engagement feature configured to couple to the seat of the first bone anchor via pivot connection during use, wherein the pivot connection is configured to secure the proximal end of the arm member to the seat of the first bone anchor, and wherein the pivot connection is configured to facilitate pivoting of the distal end of the first arm with respect to the seat to position the distal end of the arm member into a cradle of a second bone anchor;
- wherein the pivot connection is configured to facilitate pivoting the arm member between a first orientation and a second orientation, wherein the first orientation comprises a longitudinal axis of the arm member substantially parallel to a longitudinal axis of the seat, and wherein the second orientation comprises the longitudinal axis of the arm member substantially orthogonal to the longitudinal axis of the seat;
- and
- wherein the pivot connection is configured to inhibit removal of the arm member in a longitudinal direction substantially parallel to the longitudinal axis of the seat.
3 more elements
A spinal stabilization system, comprising:
- a first arm having a proximal end and a distal end;
- a hinged assembly configured for spinal engagement into a first vertebra;
- the hinged assembly comprising a bone screw connected to a seat, the hinged assembly further including a securing means to lock the first arm in the hinged assembly;
- and
- a receiving assembly configured for spinal engagement into a second vertebra;
- the receiving assembly comprising a bone screw connected to a cradle configured to accept the distal end of the first arm, the receiving assembly further including a securing means to lock the first arm in the receiving assembly;
- wherein the proximal end of the first arm is configured to pivotably couple to the seat of the hinged assembly via a pivot connection between the proximal end of the first arm and the seat of the hinged assembly, wherein the pivot connection is configured to secure the proximal end of the first arm to the seat, and wherein the pivot connection is configured to facilitate pivoting of the distal end of the first arm with respect to the seat to position the distal end of the first arm in the cradle;
- wherein the first arm is configured to be pivotably coupled to the seat such that a rotatable hinge is formed upon connection;
- wherein the pivot connection is configured to facilitate pivoting the first arm between a first orientation and a second orientation, wherein the first orientation comprises a longitudinal axis of the first arm substantially parallel to a longitudinal axis of the seat, and wherein the second orientation comprises the longitudinal axis of the first arm substantially orthogonal to the longitudinal axis of the seat;
- and
- wherein the pivot connection is configured to inhibit removal of the first arm in a longitudinal direction substantially parallel to the longitudinal axis of the seat.
8 more elements
A spinal stabilization system, comprising:
- a first bone anchor configured for spinal engagement into a first vertebra during use;
- a second bone anchor configured for spinal engagement into a second vertebra during use;
- an arm member having a proximal end and a distal end;
- a seat coupled to the first bone fastener during use;
- and
- a receiving cradle coupled to the second bone anchor during use, wherein the distal portion of the arm member is configured to be rotated into engagement with the receiving cradle during use;
- wherein the proximal end of the arm member is configured to pivotably couple to the seat via a pivot connection between the proximal end of the arm member and the seat of the hinged assembly, wherein the pivot connection is configured to secure the proximal end of the arm member to the seat, and wherein the pivot connection is configured to facilitate pivoting of the distal end of the arm member with respect to the seat to position the distal end of the arm member in the receiving cradle;
- and
- wherein a proximal end of the arm member is pivotably coupled to and retained within the hinge seat via a snap fit during use.
6 more elements
Dependencies are inferred from the claim text.