Spinal rod link reducer

Patent metadata

Field	Value
Publication number	US-9579126-B2
Application number	US-201213410035-A
Country	US
Kind code	B2
Filing date	Mar 1, 2012
Priority date	Feb 2, 2008
Publication date	Feb 28, 2017
Grant date	Feb 28, 2017

Abstract

The present invention includes a rod link reducer of a spinal fixation system that includes a first and a second spinal rod manipulator; a first spinal rod manipulator joint connected to the first spinal rod manipulator and a second spinal rod manipulator joint connected to the second spinal rod manipulator; a first and a second translatable transverse shaft connected to the first and second joints, respectively; and a universal reducer connected to both the first and second translatable transverse shafts, wherein the universal reducer, the shafts and the linkers provide movement and temporary fixation of a spine that has been manipulated into a final position during spinal surgery.

First claim

What is claimed is:

1. A spinal rod manipulator system for spinal fixation comprising:
a spinal rod manipulator shaft connected to a spinal rod manipulator head, wherein the spinal rod manipulator head comprises:
a first jaw comprising a first upper jaw positioned opposite a first lower jaw to form a first rod coupling aperture, a first threaded bore that extends from the first upper jaw into the first rod coupling aperture and a first screw that extends through the threaded bore into the first rod coupling aperture,
a second jaw comprising a second upper jaw positioned opposite a second lower jaw to form a second rod coupling aperture, a second threaded bore that extends from the second upper jaw into the second rod coupling aperture and a second screw that extends through the second threaded bore into the second rod coupling aperture; and
a pedicle screw aperture separating the first jaw from the second jaw, wherein the pedicle screw aperture accommodates a pedicle screw, the pedicle screw having an upper rod opening to receive a rod and a lateral rod opening to receive a permanent rod,
wherein the spinal rod manipulator head is engaged with the rod, the spinal rod manipulator shaft is oriented substantially perpendicular to the rod.

2. The spinal rod manipulator system of claim 1 , wherein the first screw and the second screw are accessible from the top.

3. The spinal rod manipulator system of claim 1 , wherein the spinal rod manipulator shaft comprises a head junction that accepts the spinal rod manipulator head and a head screw in the head junction to secure the spinal rod manipulator head to the spinal rod manipulator shaft.

4. The spinal rod manipulator system of claim 1 , further comprising a first bar clamp attached to the spinal rod manipulator shaft.

5. The spinal rod manipulator system of claim 4 , further comprising a transverse shaft attached to the first bar clamp transverse to the spinal rod manipulator shaft.

6. The spinal rod manipulator system of claim 5 , wherein the transverse shaft slides in the first bar clamp to increase or decrease a distance from the first bar clamp to an end of the transverse shaft.

7. The spinal rod manipulator system of claim 1 , wherein the first jaw and the second jaw receive the rod.

8. The spinal rod manipulator system of claim 1 , wherein the spinal rod manipulator comprises titanium, stainless steel, spring steel, aluminum, Niobium and alloys thereof, carbon fiber, ceramics, polymers, composites or combinations thereof.

9. The spinal rod manipulator system of claim 1 , wherein the spinal rod manipulator shaft is generally aligned with the pedicle screw aperture.

10. The spinal rod manipulator system of claim 1 , wherein the first threaded bore has a central longitudinal axis, and when the rod is received in the first rod coupling aperture, the central longitudinal axis intersects the rod.

11. A method of correcting a spinal deformity comprising the steps of:
providing one or more pedicle screws interconnected with a rod, each of the one or more pedicle screws having an upper rod opening to receive the rod and a lateral rod opening to receive a permanent rod;
providing a spinal rod manipulator comprising a spinal rod manipulator shaft connected to a spinal rod manipulator head, wherein the spinal rod manipulator head comprises a first jaw comprising a first upper jaw positioned opposite a first lower jaw to form a first rod coupling aperture that is adapted to receive the rod, a first threaded bore that extends from the first upper jaw into the first rod coupling aperture and a first screw that extends through the threaded bore into the first rod coupling aperture, a second jaw comprising a second upper jaw positioned opposite a second lower jaw to form a second rod coupling aperture that is adapted to receive the rod, a second threaded bore that extends from the second upper jaw into the second rod coupling aperture and a second screw that extends through the second threaded bore into the second rod coupling aperture, and a pedicle screw aperture separating the first jaw from the second jaw, wherein the pedicle screw aperture accommodates a one of the one of more pedicle screws;
positioning the spinal rod manipulator head on each side of the one of the one or more pedicle screws wherein the pedicle screw is within the one of the one of more pedicle screws aperture;
positioning the rod in the first rod coupling aperture and the second rod coupling aperture; and
tightening the first screw and the second screw to secure the rod to the first rod coupling aperture and to the second rod coupling aperture, wherein, when tightened, the spinal rod manipulator shaft is oriented substantially perpendicular to the rod.

12. The method of claim 11 , wherein the first screw and the second screw are accessible from the top.

13. The method of claim 11 , further comprising the step of attaching a first bar clamp to the spinal rod manipulator shaft.

14. The method of claim 13 , further comprising the step of attaching a transverse shaft to the first bar clamp transverse to the spinal rod manipulator shaft.

15. The method of claim 14 , wherein the transverse shaft is positioned in the first bar clamp to increase or decrease a distance from the first bar clamp to an end of transverse shaft.

16. The method of claim 11 , further comprising the step of connecting a second spinal rod manipulator to the rod.

17. The method of claim 16 , further comprising the step of connecting a first bar clamp to the spinal rod manipulator shaft and a second bar clamp to the second spinal rod manipulator shaft; and inserting a transverse shaft in the first bar clamp and the second bar clamp.

18. The method of claim 11 , wherein the spinal rod manipulator comprises titanium, stainless steel, spring steel, aluminum, Niobium and alloys thereof, carbon fiber, ceramics, polymers, composites or combinations thereof.

19. The method of claim 11 , wherein when tightened, a lower most surface of the first screw contacts the rod.

20. A kit comprising:
a first and a second spinal rod manipulator each comprising a spinal rod manipulator shaft connected to a spinal rod manipulator head, wherein the spinal rod manipulator head comprises a first jaw comprising a first upper jaw positioned opposite a first lower jaw to form a first rod coupling aperture, a first threaded bore that extends from the first upper jaw into the first rod coupling aperture and a first screw that extends through the threaded bore into the first rod coupling aperture, a second jaw comprising a second upper jaw positioned opposite a second lower jaw to form a second rod coupling aperture, a second threaded bore that extends from the second upper jaw into the second rod coupling aperture and a second screw that extends through the second threaded bore into the second rod coupling aperture, and a pedicle screw aperture separating the first jaw from the second jaw, wherein the pedicle screw aperture accommodates a pedicle screw, the pedicle screw having an upper rod opening to receive a rod and a lateral rod opening to receive a permanent rod, wherein, when the first and second spinal rod manipulators are engaged with the rod and each of the spinal rod manipulator shafts is oriented substantially perpendicular to the rod; and
a first and a second translatable transverse shaft attached to the first and second spinal rod manipulator shafts at a first joint and a second joint, respectively.

21. The kit of claim 20 , further comprising t

Assignees

• Zhang Hong
• Sucato Dan
• Ross Jr John David
• Globus Medical Inc

Inventors

• Zhang Hong
• Sucato Dan
• Ross Jr John David

Classifications

• A61B2090/037

  with a frangible part, e.g. by reduced diameter · CPC title

• A61B90/03

  Automatic limiting or abutting means, e.g. for safety · CPC title

• A61B17/7079

  Tools requiring anchors to be already mounted on an implanted longitudinal or transverse element, e.g. where said element guides the anchor motion · CPC title

• A61B17/7052

  of variable angle or length · CPC title

• A61B17/705 Primary

  for linking adjacent ends of longitudinal elements · CPC title