Spinous process fixation system and methods thereof

摘要

An implantable device may be provided. The implantable device may comprise an upper assembly comprising a ramped base and a pair of opposing windows. The pair of opposing windows may extend upward from either lateral side of the ramped base. A gripping assembly may be disposed in each window. The implantable device may further comprise a lower assembly comprising a ramped base and a pair of opposing windows. The pair of opposing windows may extend down from either lateral side of the ramped base. A gripping assembly is disposed in each window. The implantable device may further comprise a ramped actuator assembly disposed between the upper assembly and the lower assembly. The ramped actuator may be configured to transition the implantable device 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.

主权项

1. A surgical method comprising:
inserting an implantable device into an interspinous space, wherein the implantable device is in a collapsed form having a first height; and expanding the implantable device in the interspinous space, wherein the implantable device is expanded to an expanded form having a second height, wherein the implantable device comprises:
an upper assembly including a pair of upwardly facing extensions;a lower assembly including a pair of downwardly facing extensions; andan actuation assembly positioned between the upper assembly and the lower assembly for changing a distance of separation between the upper assembly and the lower assembly, wherein the actuation assembly comprises a first ramped actuator, a second ramped actuator and a central screw, wherein rotation of the central screw draws the first ramped actuator toward the second ramped actuator, thereby causing expansion of the implantable device.