Back to results
US 2012/0071885 A1Published application
Surgical instrument support system and method
AssigneeZimmer Spine, Inc.
InventorsCharles R. Forton, Larry T. Khoo, Peter Thomas Miller
Life of this patent
Estimating the term…
Abstract
Embodiments include a system for manipulating a portion of the spine. A support body provides support for extender sleeves that are coupled to bone screws implanted in bone. The extender sleeves are coupled to the support body in a manner that allows translation and rotation of the extender sleeves relative to the support body. Movement and rotation of the extender sleeves in selected directions can be allowed while movement and rotation in other directions can be inhibited. The extender sleeves can be manipulated to move the bone.
Claims22
A system for positioning components in surgical procedures comprising;
- a surgical instrument support having a support body comprising a first member and second member having parallel portions extending in a first direction;
- a support body collar mounted to the first member and translatable along the first member;
- a support body collar locking mechanism to selectively inhibit translation of the support body collar;
- a linkage coupled to the support body collar translatable relative to the support body collar perpendicular to the first direction;
- a linkage locking mechanism to selectively inhibit translation of the linkage relative to the support body collar;
- a sleeve collar coupled to the linkage by a connection that allows polyaxial rotation of the sleeve collar relative to the linkage, wherein the sleeve collar is sized to receive an extender sleeve for installing bone anchors and allow the extender sleeve to translate in the sleeve collar;
- a sleeve collar locking mechanism to inhibit rotation of the sleeve collar;
- an extender sleeve locking mechanism to inhibit translation of the extender sleeve in the sleeve collar.
5 more elements
A surgical instrument support system for correcting deformities in the spine, comprising:
- a support body for supporting components external to a patient's body;
- a set of support body collars, wherein each support body collar has a first passage with an inner surface profile complementary to the outer surface profile of the support body to allow translation of the support body collar relative to the support body;
- a set of linkages, wherein each support body collar has a second passage with an inner surface profile complementary to the outer surface profile of a linkage of the set of linkages to allow rotation and translation of the linkage relative to the support body collar;
- a set of crossbars, wherein each support body collar comprises a third passage with an inner surface profile complementary to the outer surface profile of one crossbar of the set of crossbars to allow rotation and translation of the crossbar relative to the support body collar, wherein at least one of the crossbars is coupled to two support body collars;
- a set of sleeve collars, wherein each sleeve collar is coupled to a linkage by a connection that allows polyaxial rotation of the sleeve collar relative to a corresponding linkage;
- a set of sleeves, wherein each sleeve collar has a sleeve passage having an inner surface complementary to the outer surface profile of one sleeve in the set of sleeves to allow translation of the sleeve relative to the sleeve collar;
- and
- a set of bone screws, wherein each bone screw has a threaded end for advancement into bony tissue, wherein each sleeve is coupled to a bone screw in the set of bone screws.
5 more elements
A method of treating spinal injuries:
- providing a support body coupled to a set of extender sleeves, wherein the extender sleeves can translate and rotate relative the support body and wherein the support body provides support for the extender sleeves outside of a human body;
- determining a desired longitudinal position and orientation for each of the set of extender sleeves;
- locking each of the set of extender sleeves in the desired longitudinal position and orientation;
- advancing a set of bone anchors into vertebrae using the set of extender sleeves;
- after the set of bone anchors are installed into the vertebrae, allowing selected translation and rotation of each extender sleeve relative to the support body;
- manipulating the set of extender sleeves to move selected vertebrae;
- locking the position and orientation of each of the set of extender sleeves when the selected vertebrae are in desired positions.
4 more elements
Dependencies are inferred from the claim text.