US Patent 11998244 Minimally invasive surgery add on screw system

A system, medical devices, and methods for use in surgical procedures, such as spinal surgeries. The system, medical devices, and methods are designed to provide a surgeon the ability to add a screw connector, or screw head such as a tulip, to pre-existing implanted bone, such as pedicle, facet, lateral mass, etc., screw system without having to remove the previously implanted screws and/or rods already existing in a patient.