US 12,133,654 B2
Powered surgical drill having rotating field bit identification
Steven J. Carusillo, Kalamazoo, MI (US); Rahul Sharma, Gurgaon (IN); Brendan Schneider, Portage, MI (US); and Trevor Jonathan Lambert, Portage, MI (US)
Assigned to Stryker Corporation, Portage, MI (US)
Appl. No. 17/611,481
Filed by Stryker Corporation, Kalamazoo, MI (US)
PCT Filed May 15, 2020, PCT No. PCT/US2020/033288
§ 371(c)(1), (2) Date Nov. 15, 2021,
PCT Pub. No. WO2020/232413, PCT Pub. Date Nov. 19, 2020.
Claims priority of provisional application 62/848,029, filed on May 15, 2019.
Claims priority of provisional application 62/848,038, filed on May 15, 2019.
Prior Publication US 2022/0241045 A1, Aug. 4, 2022
Int. Cl. A61B 17/16 (2006.01); A61B 90/00 (2016.01); A61B 90/98 (2016.01); A61B 17/00 (2006.01)
CPC A61B 17/1633 (2013.01) [A61B 17/1615 (2013.01); A61B 17/1626 (2013.01); A61B 17/1628 (2013.01); A61B 90/06 (2016.02); A61B 90/98 (2016.02); A61B 2017/00876 (2013.01); A61B 2090/062 (2016.02)] 19 Claims
OG exemplary drawing
 
1. A surgical handpiece system for use with a drill bit having an identification feature that includes a magnetic material, the surgical handpiece system comprising:
a handpiece for coupling and transferring torque to a drill bit to rotate the drill bit about an axis;
a measurement module configured to be coupled to the handpiece, the measurement module comprising:
a housing, and
a measurement cannula comprising a non-magnetic material, the measurement cannula configured to circumferentially surround the drill bit when the drill bit is coupled to the handpiece, and the measurement cannula being slidably mounted to the housing so as to extend forward or rearward relative to the housing between a fully distal position and a proximal position, the measurement cannula having a distal end adapted for placement against a workpiece;
a transducer assembly for generating a transducer signal based on a position of the distal end of the measurement cannula relative to the housing;
a sensor for generating an identification signal responsive to a magnetic field or magnetoresistance of the identification feature of the drill bit through the measurement cannula when the drill bit is coupled to the handpiece and rotating about the axis; and a controller configured to receive the identification signal and identify the coupled drill bit corresponding to the received identification signal.