US Patent 10123842 Surgical robotic cart immobilizer

A mobile surgical robotic cart assembly used for minimally invasive surgery includes a vertical column supporting a robotic arm thereon and a base portion having at least three casters adapted to allow the surgical robotic assembly to move. The surgical robotic cart assembly further includes an immobilization assembly coupled to the base portion, the immobilization assembly being configured to move between an unlocked position and a locked position. The surgical robotic cart assembly is mobile when the immobilization assembly is in the unlocked position and immobile when the when the immobilization assembly is in the locked position.