US 12,029,438 B2
Measurement module of a surgical system for determining drill breakthrough
Rahul Sharma, Gurgaon (IN)
Assigned to Stryker Corporation, Kalamazoo, MI (US)
Filed by Stryker Corporation, Kalamazoo, MI (US)
Filed on Dec. 2, 2022, as Appl. No. 18/074,352.
Application 18/074,352 is a continuation of application No. 16/784,878, filed on Feb. 7, 2020, granted, now 11,517,326.
Claims priority of provisional application 62/802,285, filed on Feb. 7, 2019.
Prior Publication US 2023/0120811 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/16 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/1626 (2013.01) [A61B 17/1615 (2013.01); A61B 17/1628 (2013.01); A61B 2017/00132 (2013.01); A61B 2017/00221 (2013.01); A61B 2560/0431 (2013.01); A61B 2560/0462 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A measurement module comprising:
a displacement sensor configured to provide a displacement signal over a first time interval, the first time interval being bounded by an initial time and a final time, the first time interval corresponding to a drilling process;
a controller operably connected to the displacement sensor to receive the displacement signal; and
a memory device operably connected to the controller, where the memory device is configured to store data;
wherein the controller is configured to:
determine a preceding velocity-related signal from the displacement signal over a second time interval, where the second time interval is at least a portion of the first time interval;
determine a first acceleration-related signal over a third time interval based on the displacement signal, the third time interval being within the first time interval, where the third time interval is after the second time interval;
determine a preceding velocity factored acceleration-related signal for the third time interval based on the first acceleration-related signal and the preceding velocity-related signal; and
determine a breakthrough time of a drill bit through a cortical wall of a bone within the first time interval based on the preceding velocity factored acceleration-related signal.