Osteotomy plate, plate driver and method for their use

摘要

An orthopedic plate is specifically configured for use in osteotomies, in which part of the plate extends into a portion of a first bone segment and part is external to the cortical surface of an adjacent bone segment to fix the segments to allow them to fuse. The plate has a first end and a second end where the end which is inserted into the bone has a chamfer and a through hole having a hole axis optionally at an oblique angle to the longitudinal axis of the plate, and which can receive a screw, peg or pin. The second end of the plate includes a locking screw hole and optionally including a compression slot extending in a direction toward a screw hole in the opposing end. Optionally, the non-locking hole has a shroud that forms an arc or portion of a cylinder over the hole. A plate driver having a recess that holds the plate is used to insert the plate into the bone.

主权项

1. A plate system for use in associated bone comprising:
a locking screw; a non-locking screw and a plate having a first end and a second end aligned along a longitudinal axis and a rectangular profile including two long sides and two short sides, the plate having first and second rails parallel to the longitudinal axis with a frustum-shaped tip adjacent the first end of the plate and a third rail along one of the short sides at the second end of the plate, such that the first and second rails extend along at least a portion of each of the two long sides with a web connecting the first and second rails, the web having a first surface configured to face bone, a second surface opposite the first surface, and a thickness direction extending from the first surface to the second surface, the first and second rails having a dimension in the thickness direction larger than a thickness of the web in the thickness direction,
the first end including a cutting edge on the web, and having a hole which receives the non-locking screw, and having a chamfer which tapers from a smaller thickness at the edge toward the hole,the second end having a locking hole which receives the locking screw,wherein the first hole and the second hole are aligned along the longitudinal axis.