Raymond Dunn,Kristen Billiar,Janice Lalikos,Alexander Christakis,John Dieselman
申请号：
US13071155
公开号：
US20120253407A1
申请日:
2011.03.24
申请国别(地区):
US
年份:
2012
代理人:
摘要：
An assembly for rigid bone fixation includes a plate and a screw. The screw can be rotated freely within the plate in a non-locking configuration to secure the plate against the bone. A locking mechanism is engaged to prevent the screw from moving relative the plate. In one embodiment, the plate includes a threaded portion and a non-threaded portion. The screw head rotates within the non-threaded portion to tighten the screw and pull the plate against the bone. The locking mechanism can include a moveable nut that rotates within the threaded portion of the plate to lock the screw and plate in a locking mode. The locking mechanism can include a second screw to actuate and expansion portion of screw inserted into the bone. The assembly can be used for rigid fixation of bones that experience cyclic loads, such as the sternum and mandible. Methods of rigid bone fixation are also described.
