Universal transverse connector device
View Patent ↗A connecting apparatus includes a first grasping member adapted to hold a first elongated member and a second grasping member adapted to hold a second elongated member. The second grasping member is operatively connected to the first grasping member so that the first and second grasping members are movable relative to each other. The apparatus further includes a first rotatable rod disposed in mechanical cooperation with the first grasping member, a second rotatable rod disposed in mechanical cooperation with the second grasping member, a first engaging member operatively connected to the first rotatable rod, and a second engaging member operatively connected to the second rotatable rod. The first engaging member is adapted to engage at least a portion of a first pedicle screw. The second engaging member is adapted to engage at least a portion of a second pedicle screw.
1. A connection system, comprising:
a first spinal fixation rod;
a second spinal fixation rod;
a first pedicle screw having a first screw head, the first screw head defining a first saddle, wherein the first spinal fixation rod is supported in the first saddle;
a second pedicle screw having a second screw head, the second screw head defining a second saddle, wherein the second spinal fixation rod is supported in the second saddle;
a first grasping member holding the first spinal fixation rod;
a second grasping member holding the second spinal fixation rod, wherein the second grasping member is operatively connected to the first grasping member;
a first rotatable rod disposed in mechanical cooperation with the first grasping member;
a second rotatable rod disposed in mechanical cooperation with the second grasping member;
a first engaging member operatively connected to the first rotatable rod, the first engaging member being adapted to engage the first screw head, wherein the first engaging member is configured to translate upon rotation of the first rotatable rod; and
a second engaging member operatively connected to the second rotatable rod, the second engaging member being adapted to engage the second screw head, wherein the second engaging member is configured to translate upon rotation of the second rotatable rod,
wherein the first engaging member includes a locking plate configured to advance toward the first screw head upon rotation of the first rotatable rod and the first engaging member includes a dual rack operatively connected to the locking plate, the dual rack being configured to move the locking plate upon rotation of the first rotatable rod.
2. The connection system according to claim 1 , wherein the first and second grasping members are configured to move with respect to each other.
3. The connection system according to claim 2 , further comprising a locking screw configured for fixing first and second grasping members in place.
4. The connection system according to claim 1 , wherein the first rotatable rod includes locking members adapted to engage the dual rack.
5. The connection system according to claim 4 , wherein the dual rack includes teeth configured to engage the locking members.
6. The connection system according to claim 1 , wherein the first engaging member is an integral part of first rotatable rod.
7. The connection system according to claim 6 , wherein the first engaging member is a blunt end of the first rotatable rod.