Patent ID: 9451994
Filing Date: 2016-09-27
CPC Classification: A61B

Claim Text:
1. A spinal implant revision device comprising: a revision connector for attachment to a pre-existing rod in a patient, the revision connector having a slotted opening configured to receive a first or a pre-existing rod; and a tulip member pivotally connected to the revision connector and movable in angularity within predetermined ranges in a first plane, the first plane being parallel to a rod to which the revision connector is attached, the tulip configured to receive a second or new rod wherein the tulip member can rotate within the first plane in a predetermined angular range α− to α+, wherein the angular range of α− to α+ is between −15 degrees to 15 degrees wherein 0 degrees is parallel to a longitudinal axis of the pre-existing rod, the range of angles α− to α+ allows the second or new rod to be tilted either upwardly or downwardly relative to the first or pre-existing rod to permit installation at different levels relative to the spine, and wherein the tulip member has a lower rod receiving portion and an elongated detachable tower portion connected integral to the lower rod receiving portion by a breakaway groove positioned therebetween, the lower rod receiving portion of the tulip is formed as a second or new rod receiving slot or channel extending to a closed end, a pair of legs extend from the closed end defining the second or new rod receiving slot or channel to the breakaway groove, the elongated detachable tower portion has a pair of detachable leg extensions, one leg extension extending from the breakaway groove and aligned with one of the legs further extending the receiving slot or channel toward a proximal end wherein the second or new rod receiving slot or channel extends open through and between legs and leg extension to receive the second or new rod therethrough external of a patient and configured to deliver said rod internal an incision to the closed end of the tulip, and wherein the tulip has a side with a projection interposed between the connector and the inner surface of the connector, the projection fits into a complimentary truncated “V” shaped recessed slot configured to limit the angularity of the connector relative to the tulip within the predetermined range α− to α+ when the tulip and revision connector are assembled the tulip can pivot limited by the projection abutting sides of the truncated “V” shaped recessed slot.