Transverse connector
The present disclosure provides a transverse connector having first and second spinal rod connecting members disposed on opposing ends of a cross member. Each spinal rod connecting member is configured to connect to a spinal rod. The first and second spinal rod connecting members are configured for multidirectional articulation relative to the cross member.
1. A transverse connector for connecting spinal rods, the transverse connector comprising:
a first cross member connecting element including a linking arm and a first ball joint extending from the linking arm, the first cross member connecting element defining a first cross member receptacle;
a first spinal rod connecting member defining a first ball joint receptacle, the first ball joint receivable within the first ball joint receptacle;
a second cross member connecting element including a linking arm and a second ball joint extending from the linking arm, the second cross member connecting element defining a second cross member receptacle, the first and second cross member receptacles being in alignment and defining a first axis;
a second spinal rod connecting member defining a second ball joint receptacle, the second ball joint receivable within the second ball joint receptacle, the first and second ball joints defining a second axis therethrough, wherein the first axis exists in a first plane and the second axis exists in a second plane, the first and second planes being parallel and laterally offset from one another; and
a cross member coupled to the first and second cross member connecting elements.
2. The transverse connector of claim 1 , wherein each cross member receptacle is configured to receive the cross member.
3. The transverse connector of claim 1 , wherein each cross member connecting element of the first and second cross member connecting elements defines a locking screw receptacle, each of the locking screw receptacles is configured to secure the cross member to the first and second cross member connecting elements.
4. The transverse connector of claim 3 , wherein each cross member connecting element of the first and second cross member connecting elements includes a top portion, a bottom portion, and a compression slot defined between the top and bottom portions of the respective first and second cross member connecting elements.
5. The transverse connector of claim 4 , wherein the compression slots of the first and second cross member connecting elements are in communication with the locking screw receptacles of the first and second cross member connecting elements, respectively.
6. The transverse connector of claim 5 , further including cross member locking screws configured to be received within the locking screw receptacles of the first and second cross member connecting elements, wherein the cross member locking screws are rotatable to compress the top and bottom portions of the respective first and second cross member connecting elements toward each other and to secure the cross member to the first and second cross member connecting elements.
7. The transverse connector of claim 1 , wherein the cross member is a rod.
8. The transverse connector of claim 1 , wherein the first and second cross member connecting elements are selectively movable along a length of the cross member to accommodate different distances between spinal rods coupled to the first and second spinal rod connecting members.
9. The transverse connector of claim 1 , wherein each spinal rod connecting member of the first and second spinal rod connecting members defines a spinal rod locking screw receptacle, the spinal rod locking screw receptacles configured to receive spinal rod locking screws to secure spinal rods to the first and second spinal rod connecting members, respectively.
10. The transverse connector of claim 9 , further including spinal rod locking screws that are rotatable in a first direction to fix the first and second spinal rod connecting members relative to respective first and second cross member connecting elements, the spinal rod locking screws rotatable in a second direction to enable the respective first and second spinal rod connecting members to move relative to the first and second cross member connecting elements, respectively.
11. The transverse connector of claim 1 , wherein the first cross member connecting element defines a locking screw receptacle, the locking screw receptacle configured to secure the cross member in the first cross member connecting element.
12. The transverse connector of claim 11 , wherein the first cross member connecting element includes a top portion, a bottom portion, and a compression slot defined between the top and bottom portions of the first cross member connecting element.
13. The transverse connector of claim 12 , wherein the compression slot of the first cross member connecting element is in communication with the locking screw receptacle of the first cross member connecting element.
14. The transverse connector of claim 13 , further including a cross member locking screw configured to be received within the locking screw receptacle of the first cross member connecting element, wherein the cross member locking screw is rotatable to compress the top and bottom portions of the first cross member connecting element toward each other and to secure the cross member with the cross member receptacle of the first cross member connecting element.
15. The transverse connector of claim 1 , wherein the first spinal rod connecting member defines a spinal rod locking screw receptacle, the spinal rod locking screw receptacle configured to secure a spinal rod in the first spinal rod connecting member.
16. The transverse connector of claim 15 , further including a spinal rod locking screw configured to be received within the spinal rod locking screw receptacle of the first spinal rod connecting member, wherein the spinal rod locking screw is rotatable in a first direction to fix the first spinal rod connecting member to the first cross member connecting element, the spinal rod locking screw rotatable in a second direction to enable the first spinal rod connecting member to move relative to the first cross member connecting element.
17. The transverse connector of claim 1 , wherein in a second configuration of the transverse connector, the first spinal rod connecting member and the second spinal rod connecting member are out of alignment.
18. The transverse connector of claim 1 , wherein each of the first and second spinal rod connecting members defines a U-shaped spinal rod connecting passage.