US 12,279,786 B2
Retractable shaver bur
John K. Sieh, Safety Harbor, FL (US); Ronald D. Woodring, Dunedin, FL (US); Steven T. Helak, Tampa, FL (US); and John F. Collins, Tampa, FL (US)
Assigned to Conmed Corporation, Utica, NY (US)
Appl. No. 17/413,320
Filed by Conmed Corporation, Utica, NY (US)
PCT Filed Dec. 9, 2019, PCT No. PCT/US2019/065143
§ 371(c)(1), (2) Date Jun. 11, 2021,
PCT Pub. No. WO2020/123335, PCT Pub. Date Jun. 18, 2020.
Claims priority of provisional application 62/779,031, filed on Dec. 13, 2018.
Prior Publication US 2022/0039819 A1, Feb. 10, 2022
Int. Cl. A61B 17/16 (2006.01); A61B 17/32 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/32002 (2013.01) [A61B 17/1604 (2013.01); A61B 2017/00876 (2013.01); A61B 2017/320028 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A shaver bur, comprising:
an inner assembly having an inner hub with an inner tube extending distally therefrom, the inner tube terminating in a distal bur tip;
an outer assembly having an outer hub with an outer tube extending distally therefrom;
wherein the inner tube is moveable within the outer tube between a retracted position and an extended position;
a magnet retainer connected between the inner hub and the outer hub;
a deployment mechanism connected to the outer hub, the deployment mechanism movable in a first direction and a second direction;
wherein moving the deployment mechanism in the first direction moves the inner tube to the extended position and moving the deployment mechanism in the second direction moves the inner tube to the retracted position; and
wherein moving the deployment mechanism in the second direction moves the deployment mechanism against the magnet retainer.