US 12,226,109 B2
Powered surgical drill having transducer assembly including at least two rotation sensor devices for use in determining bore depth of a drilled hole
Steve Carusillo, Kalamazoo, MI (US)
Assigned to Stryker Corporation, Portage, MI (US)
Filed by Stryker Corporation, Kalamazoo, MI (US)
Filed on Dec. 22, 2022, as Appl. No. 18/087,297.
Application 18/087,297 is a continuation of application No. 17/052,177, granted, now 11,540,841, previously published as PCT/US2019/030180, filed on May 1, 2019.
Claims priority of provisional application 62/665,024, filed on May 1, 2018.
Prior Publication US 2023/0130042 A1, Apr. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/16 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/1626 (2013.01) [A61B 17/1624 (2013.01); A61B 90/06 (2016.02); A61B 2090/062 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A surgical drill for actuating a drill bit, the surgical drill including:
a housing;
a probe moveably mounted to the housing and adapted for placement against a workpiece; and
a transducer assembly including:
a gear coupled to the probe and configured to rotate more than 360 degrees about a gear axis upon movement of the probe relative to the housing; and
a transducer comprising at least two potentiometers, each of the at least two potentiometers coupled to the gear.