Back to results
US 2010/0249836 A1Published application
Alignment system with longitudinal support features
AssigneeKspine, Inc.
InventorSteven J. Seme
Life of this patent
Estimating the term…
Abstract
Some embodiments relate to systems, devices, and associated methods for correcting spinal column deformities that help minimize a number of attachment anchors utilized for correction, facilitate use of straight or contoured rods, and/or help promote a more natural, physiologic motion of the spinal column.
Claims24
A system for correcting a spinal deformity of a spinal column, the system comprising:
- a rod extending along a spine of a patient and adapted to change in length from a first length to a second length;
- a first rod anchor fixed to a first vertebra of the spine, the first rod anchor receiving the rod such that the rod extends through the first rod anchor and is secured against substantial lateral translation relative to the first rod anchor and the rod is able to change at least two of pitch, yaw, and roll at the first rod anchor;
- a second rod anchor fixed to a second vertebra, the second rod anchor receiving the rod such that the rod extends through the second rod anchor and is secured against substantial lateral translation relative to the second rod anchor and the rod is able to change in at least pitch and yaw at the second rod anchor;
- a first stop feature adapted to limit axial sliding of the rod and located adjacent the first rod anchor;
- and
- a second stop feature adapted to limit axial sliding of the rod and located adjacent the second rod anchor such that when the first and second rod anchors abut the first and second stop features the rod resists compressive load and the first and second rod anchors are configured to exert a distraction force on the spine.
3 more elements
A method of exerting a distraction force on a spine, the method comprising:
- securing a first rod anchor on a first side of a spine to a first vertebra and a second rod anchor on the first side of the spine to a second vertebra;
- receiving a first portion of a rod in the first rod anchor and a second portion of the rod in the second rod anchor such that the first portion is substantially constrained against lateral translation and the second portion is substantially constrained against lateral translation, the first and second portions being able to change in pitch and yaw at the first and second rod anchors, respectively, in response to movement of the spine;
- locating a first stop feature along the rod at a first position adjacent the first rod anchor and a second stop feature along the rod at a second position adjacent the second rod anchor;
- imposing a compressive force on the rod with the first second stops;
- and
- distracting the first side of the spine.
3 more elements
An implant for correcting a spinal deformity, the implant comprising:
- means for anchoring a first portion of a rod on a first side of a spine to a first vertebra such that the first portion of the rod is substantially constrained against lateral translation;
- means for anchoring a second portion of the rod on the first side of the spine to a second vertebra such that the second portion of the rod is substantially constrained against lateral translation;
- and
- means for imposing a distraction force on the first side of the spine with rod.
1 more element
An implant for correcting a spinal deformity, the implant comprising:
- means for anchoring a first portion of a rod on a first side of a spine to a first vertebra such that the first portion of the rod is substantially constrained against lateral translation;
- means for anchoring a second portion of the rod on the first side of the spine to a second vertebra such that the second portion of the rod is substantially constrained against lateral translation;
- and
- means for imposing a compressive force on the first side of the spine with rod.
1 more element
Dependencies are inferred from the claim text.