Robotic rod benders and related mechanical and motor housings
AssigneeGlobus Medical, Inc.
InventorsSritam Parashar Rout, Norbert Johnson, David Cleary
Life of this patent
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Abstract
A robotic rod bender is disclosed. The robotic rod bender includes an autoclavable top assembly that includes a rod feeding subassembly, a brake subassembly, and a bending subassembly. The rod bending subassembly, the bending subassembly, and the brake assembly are disposed on a top plate. The robotic rod bender also includes a motor housing that includes one or more motors, a spline shaft, and a linear actuated elevator assembly. The linear actuated elevator assembly includes a linear actuator, a movable plate, and a mid-plate. The spine shaft extends from the moveable plate. The autoclavable top assembly is removably disposed atop the mid-plate.
Claims20
A robotic rod bender comprising:
- an autoclavable top assembly comprising a rod feeding subassembly configured to feed a surgical rod, a brake subassembly configured to receive the rod from the rod feeding subassembly and fix the surgical rod in place, and a bending subassembly configured to bend the surgical rod while the surgical rod is fixed in place by the brake subassembly;
- wherein the rod bending subassembly, the bending subassembly, and the brake subassembly are disposed on a top plate;
- and
- a motor housing comprising one or more motors configured to drive the autoclavable top assembly, a spline shaft, and an actuated elevator assembly, wherein the actuator elevator assembly comprises an actuator, a movable plate driven by the movable plate, and a mid-plate above movable plate, wherein the spline shaft extends from the moveable plate and wherein at least one of the motors is connected to the moveable plate.
The robotic rod bender of claim 6 wherein the cam has a third configuration, wherein the roller moves along the longitudinal axis to facilitate engagement with the spline shaft.
A motor housing for a robotic rod bender comprising:
- a motor;
- a spline shaft;
- an actuated elevator assembly comprising:
- a mid-plate;
- a movable plate below the mid-plate, wherein the motor is connected to the moveable plate, and wherein the spline shaft extends from the moveable plate;
- a cam assembly comprising a cam, a roller, and a cam engagement bar, wherein the roller is connected to the movable pate, wherein the cam engagement bar is connected to a top plate, wherein the roller is configured to move in conjunction with the movable plate, wherein the roller is further configured to contact and rotate the cam, thereby causing the cam to engage with and lock onto the cam engagement bar, and wherein the roller is further configured to continue to move in a straight line along the longitudinal axis, and wherein the roller facilitates automatic piercing of a drape and engaging the spline shaft through the mid-plate,
- at least one pair of rails positioned in alignment with one another, wherein the rails are disposed along the longitudinal axis of the motor housing, wherein the rails are configured to facilitate movement of the moveable plate in an upward and a downward direction;
- and
- an actuator removably attached to the movable plate, wherein activation of the actuator is configured to lift the movable plate upward along the longitudinal axis.
Dependencies are inferred from the claim text.