US 12,268,399 B2
Rotary surgical instrument assembly
Rod G. Cameron, Jr., Raynham, MA (US); John Cuneo, Raynham, MA (US); Chad McAlexander, Warsaw, IN (US); and Prasenjit Saha, Warsaw, IN (US)
Assigned to DEPUY IRELAND UNLIMITED COMPANY, Ringaskiddy (IE)
Filed by DEPUY IRELAND UNLIMITED COMPANY, County Cork (IE)
Filed on Oct. 24, 2022, as Appl. No. 18/048,966.
Application 18/048,966 is a division of application No. 16/652,207, granted, now 11,504,138, previously published as PCT/US2018/053754, filed on Oct. 1, 2018.
Claims priority of provisional application 62/567,806, filed on Oct. 4, 2017.
Prior Publication US 2023/0087331 A1, Mar. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/16 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/1666 (2013.01) [A61B 17/1615 (2013.01); A61B 2017/00526 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A rotary surgical assembly attachable to a driver, the assembly comprising:
a plurality of cutting teeth;
a hollow dome comprising
a pole having a pole axis, and
a cutting surface on which is provided at least some of said plurality of cutting teeth, said cutting surface including a curved part and a substantially flat part proximal the pole, the substantially flat part having an elongated slot extending therethrough; and
a spindle having a proximal end for connection to the driver and a distal end including a spindle mounting element, in which a part of the spindle mounting element is secured to an internal surface of the dome beneath the substantially flat part of the cutting surface, and in which said spindle mounting element comprises a pedestal which is received in a snug fit relationship within the elongated slot such that a flat distal surface of the pedestal is flush with the substantially flat part of the hollow dome's cutting surface, the flat distal surface of the pedestal has a polar cutting tooth formed thereon to form one of the said plurality of cutting teeth, a first end of the polar cutting tooth is positioned on the pole axis and a second end of the polar cutting tooth is positioned proximate a border of the flat part of the hollow dome's cutting surface.