Transverse vertebral connector
A transconnector is adapted to connect first and second spinal rods that are positioned longitudinally along a spine. The transconnector includes a first member and a second member that clamp onto first and second spinal rods.
1 . A transconnector for connecting first and second spinal rods that are positioned longitudinally along a spine, comprising:
a first member having a first clamp member adapted to clamp onto a first spinal rod, the first member having a first connecting region extending away from the clamp member;
a second member having a second clamp member adapted to clamp onto a second spinal rod, the second member having a second connecting region extending away from the second clamp member toward the first member, wherein the second member and first member are slidably interconnected along the first and second connecting regions;
a first interference pin coupled to the first clamp member and adapted to provide an interfering engagement with the first spinal rod to lock the first spinal rod in the first clamp member;
a second interference pin coupled to the second clamp member and adapted to provide an interfering engagement with the second spinal rod to lock the second spinal rod in the second clamp member; and
a third interference pin coupled to the first and second connecting regions and adapted to provide an interfering engagement between the first and second connecting regions to lock the first and second members in a fixed position relative to one another.
2 . A transconnector as in claim 1 , wherein the first clamp member is removably attached to the first member.
3 . A transconnector as in claim 2 , wherein the first interference pin removably attaches the first clamp member to the first member.
4 . A transconnector as in claim 1 , wherein the first connecting region comprises a pair of forked arms, and wherein the second connecting region comprises a pair of forked arms, and wherein the forked arms of the first connecting region are oriented at about 90 degrees relative to the forked arms of the second connection region.
5 . A transconnector as in claim 1 , wherein the third interference pin clamps the forked arms of the first connecting region around the forked arms of the second connecting region.
6 . A transconnector as in claim 1 , wherein at least one of the first, second, and third interfering pins is threaded.
7 . A transconnector as in claim 1 , wherein the first connecting member has a limited range of sliding motion relative to the second connecting member.
8 . A transconnector as in claim 1 , wherein the first member can rotate relative to the second member.
9 . A transconnector as in claim 1 , wherein the first connecting member and the second connecting member can rotate relative to one another about two separate axes of rotation.