Spinous process fixation system and methods thereof
AssigneeGlobus Medical, Inc.
InventorsJason Zappacosta, Darren Clutter, Robert Rightler
Life of this patent
Estimating the term…
Abstract
An implantable device may comprise a barrel, the barrel having an upper portion and a lower portion. The barrel may be configured to transition from a collapsed form having a first height to an expanded form having a second height and wherein the second height is greater than the first height. The implantable device may further include an actuator assembly disposed in the barrel, the actuator assembly comprising a front ramped actuator in engagement with the barrel, a rear ramped actuator in engagement with the barrel, and a central screw that extends from the rear ramped actuator through the front ramped actuator. The implantable device may further comprise a first plate and a second plate.
Claims20
A method for implanting a medical device in a patient, the method comprising:
- inserting a barrel of the device between adjacent spinous processes, the medical device comprising a first plate disposed on one end of the barrel;
- rotating a central screw disposed in the barrel to cause the barrel to expand from a collapsed form having a first height to an expanded form having a second height;
- and
- inserting a second plate onto the central screw such that the first plate and the second plate engage the adjacent spinous processes;
- wherein at least one of the first plate or the second plate comprises a pivoting spike assembly that is allowed to freely articulate until engagement with the adjacent spinous process compresses the pivoting spike assembly locking the pivoting spike assembly in place.
A method of assembling a medical device comprising:
- providing a medical device comprising a first plate extending from at least one side of a central barrel;
- inserting a spike assembly into an opening in the first plate such that a hole in the spike assembly is aligned with a hole in the first plate;
- inserting a fastener through the hole in the spike assembly and the hole in the first plate such that a lobe of the fastener engages the spike assembly;
- rotating the fastener while disposed in the hole of the spike assembly and the hole in the first plate such that the fastener causes a leaf spring feature of the spike assembly to expand;
- and
- further inserting the fastener through the hole in the spike assembly and the hole in the first plate to push the lobe below the leaf spring feature and into a groove in the spike assembly.
Dependencies are inferred from the claim text.