US 9,808,289 B2
External fixator ring
John D. Ross, Ovilla, TX (US); Mikhail L. Samchukov, Coppell, TX (US); Alexander M. Cherkashin, Flower Mound, TX (US); and John G. Birch, Dallas, TX (US)
Assigned to TEXAS SCOTTISH RITE HOSPITAL FOR CHILDREN, Dallas, TX (US)
Filed by TEXAS SCOTTISH RITE HOSPITAL FOR CHILDREN, Dallas, TX (US)
Filed on Mar. 28, 2016, as Appl. No. 15/82,704.
Application 15/082,704 is a continuation of application No. 12/864,534, granted, now 9,295,493, previously published as PCT/US2009/033258, filed on Feb. 5, 2009.
Claims priority of provisional application 61/026,396, filed on Feb. 5, 2008.
Prior Publication US 2016/0206349 A1, Jul. 21, 2016
Int. Cl. A61B 17/62 (2006.01); A61B 17/56 (2006.01)
CPC A61B 17/62 (2013.01) [A61B 2017/564 (2013.01); Y10T 29/49963 (2015.01)] 26 Claims
OG exemplary drawing
 
1. An external fixator ring comprising:
a ring with a central opening defined therethrough, the ring having inner and outer ring surfaces and upper and lower ring surfaces, and an outer longitudinal edge in the outer ring surface perpendicular to the upper and lower ring surfaces;
one or more apertures extending through the upper ring surface to the lower ring surface;
one or more angled flanges extending radially from said inner or outer ring surface, each angled flange comprising a first mounting surface, a second mounting surface, and a securing surface positioned between the first and second mounting surfaces;
each of said angled flanges comprising two strut connection apertures extending at least partially into the first and second mounting surfaces and having a smooth inner surface operable to receive studs providing attachment to a ring connection strut; and,
each of said angled flanges comprising a receiving aperture extending at least partially into the securing surface so as to intersect with the two strut connection apertures, said receiving aperture operable to receive a locking screw to lock the studs into the adjacent strut connection apertures.