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.
Claims16
A method for implanting a medical device in a patient, comprising:
- inserting a medical device including:
- a barrel having an upper portion and a lower portion;
- an actuator assembly disposed in the barrel, the actuator assembly including 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;
- and
- a first plate having a first portion that extends from the upper portion, a second portion that extends from the lower portion, and a first pivoting spike assembly disposed in the first plate and adapted to pivot relative to the first plate, the first pivoting spike assembly including one or more spikes extending from a first side of the first plate;
- rotating the central screw disposed in the barrel to cause the barrel to transition from a collapsed form having a first height to an expanded form having a second height;
- inserting onto the central screw a second plate having multiple spikes extending from a first side of the second plate;
- and
- pivotally attaching the first pivoting spike assembly to the first plate with a fastener,
- wherein the first pivoting spike assembly includes a spring disposed to face the fastener such that when the spring is in an uncompressed state, the first pivoting spike assembly is free to move about the fastener.
A method for implanting a medical device in a patient, comprising:
- inserting a medical device including:
- a barrel, the barrel having an upper portion and a lower portion;
- an actuator assembly disposed in the barrel;
- a first plate, formed integrally with the barrel, including a first portion that extends from the upper portion, a second portion that extends form the lower portion, and a first pivoting spike assembly disposed in the first plate and adapted to pivot relative to the first plate, the first pivoting spike assembly including one or more spikes extending from a first side of the first plate;
- and
- a locking plate having multiple spikes extending from a first side of the locking plate, the locking plate configured to be received on a central screw disposed in the actuator assembly;
- rotating the central screw disposed in the barrel to cause the barrel to transition from a collapsed form having a first height to an expanded form having a second height;
- inserting onto the central screw the locking plate;
- and
- pivotally attaching the first pivoting spike assembly to the first plate with a fastener,
- wherein the first pivoting spike assembly includes a spring disposed to face the fastener such that when the spring is in an uncompressed state, the first pivoting spike assembly is free to move about the fastener.
Dependencies are inferred from the claim text.