US 12,357,337 B2
System and method for driving an ultrasonic handpiece as a function of the mechanical impedance of the handpiece
Adam Downey, Kalamazoo, MI (US); and Matthew Owen, Vicksburg, MI (US)
Assigned to Stryker Corporation, Portage, MI (US)
Filed by Stryker Corporation, Kalamazoo, MI (US)
Filed on Jul. 28, 2023, as Appl. No. 18/227,412.
Application 18/227,412 is a continuation of application No. 17/096,293, filed on Nov. 12, 2020, granted, now 11,712,260.
Application 17/096,293 is a continuation of application No. 15/981,986, filed on May 17, 2018, granted, now 10,864,011, issued on Dec. 15, 2020.
Application 15/981,986 is a continuation of application No. 15/014,412, filed on Feb. 3, 2016, granted, now 10,016,209, issued on Jul. 10, 2018.
Application 15/014,412 is a continuation of application No. PCT/US2014/050034, filed on Aug. 7, 2014.
Claims priority of provisional application 61/863,152, filed on Aug. 7, 2013.
Prior Publication US 2023/0363784 A1, Nov. 16, 2023
Int. Cl. A61B 17/32 (2006.01); A61B 17/14 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 17/320068 (2013.01) [A61B 17/142 (2016.11); A61B 2017/0003 (2013.01); A61B 2017/00977 (2013.01); A61B 2017/320069 (2017.08); A61B 2017/32007 (2017.08); A61B 2018/00648 (2013.01); A61B 2018/0072 (2013.01); A61B 2018/00732 (2013.01); A61B 2018/00833 (2013.01); A61B 2018/00892 (2013.01); A61B 2018/00988 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for vibrating a tip of an ultrasonic instrument, the ultrasonic instrument having at least one driver to which an AC drive signal is applied to vibrate the tip and at least one memory device storing data indicative of a maximum equivalent of current that should be applied to mechanical components of the instrument, the system comprising:
a control console for generating the AC drive signal that is applied to the at least one driver of the ultrasonic instrument; and
a foot pedal connected to the control console,
wherein the control console is configured to:
read the maximum equivalent of current data from the at least one memory device of the ultrasonic instrument;
responsive to the foot pedal being depressed, determine an extent of the depression of the foot pedal;
calculate a target equivalent of current to be applied to the mechanical components of the instrument based on the read maximum equivalent of current data and the extent of the depression of the foot pedal; and
set a characteristic of the AC drive signal based on the calculated target equivalent of current.