Dale Whipple,Jason Hayes Tillett,John G. Keating,Jon Potter Kimball,Ralph Arthur Liebelt
申请号：
US14856879
公开号：
US09943340B2
申请日:
2015.09.17
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An improved joint fusion screw for transiliac fixation has a screw head and extending therefrom an elongate hollow shaft. The hollow shaft has an externally threaded end portion extending to a tip end and a non-externally threaded shank portion having a plurality of window openings. At or near the tip end is a start of a thread with a bone cutting flute. The bone cutting flute has a cutting edge on a circumferential exterior of the threaded tip to cut bone and directs the cut bone internally into a bone receiving opening in the hollow shaft directly in front of the cutting flute. The cutting edge lies at the start of the thread extending radially above the bone receiving opening at least partially overhanging the opening configured to cut bone.
