US 12,329,465 B2
Surgical navigation systems and methods
James G. Walen, Portage, MI (US); Zachary Bolthouse, Kalamazoo, MI (US); Zachary Kemp, Naples, FL (US); and David Tallon, Shanagarry (IE)
Assigned to Stryker Corporation, Portage, MI (US)
Appl. No. 17/764,007
Filed by Stryker Corporation, Kalamazoo, MI (US)
PCT Filed Sep. 28, 2020, PCT No. PCT/US2020/053092
§ 371(c)(1), (2) Date Mar. 25, 2022,
PCT Pub. No. WO2021/062373, PCT Pub. Date Apr. 1, 2021.
Claims priority of provisional application 62/906,413, filed on Sep. 26, 2019.
Prior Publication US 2022/0338938 A1, Oct. 27, 2022
Int. Cl. A61B 17/16 (2006.01); A61B 34/00 (2016.01); A61B 34/10 (2016.01); A61B 34/20 (2016.01); A61B 17/00 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 17/1615 (2013.01); A61B 17/1626 (2013.01); A61B 17/1628 (2013.01); A61B 17/1671 (2013.01); A61B 34/10 (2016.02); A61B 34/25 (2016.02); A61B 34/76 (2016.02); A61B 2017/00123 (2013.01); A61B 2017/00128 (2013.01); A61B 2017/00199 (2013.01); A61B 2017/00973 (2013.01); A61B 2034/107 (2016.02); A61B 2034/254 (2016.02)] 19 Claims
OG exemplary drawing
 
1. A surgical system configured to allow a medical professional to define an alert zone relative to a critical structure on a patient in a known coordinate system to assist the medical professional in performing surgery on a patient, the surgical system comprising:
a navigation system;
a control console comprising a control processor in communication with the navigation system;
a high-speed surgical instrument including a bur, the high-speed surgical instrument comprising a variable speed motor in communication with the control processor, the variable speed motor configured to rotate the bur at a first cutting speed of greater than 70,000 rotations per minute and a second cutting speed of below 70,000 rotations per minute and above 60,000 rotations per minute; and
a footswitch for controlling operation of the variable speed motor of the high-speed surgical instrument in communication with the control processor;
wherein the navigation system is configured to actively determine a position of the bur relative to the alert zone in the known coordinate system;
wherein the navigation system is configured to send a signal to the control processor to manipulate the variable speed motor of the high-speed surgical instrument to transition the rotation of the bur from the first cutting speed to the second cutting speed when the navigation system determines the bur enters the alert zone; and
wherein the transition of the bur from the first cutting speed to the second cutting speed creates a perceptible change as the bur transitions from the first cutting speed to the second cutting speed to notify the medical professional that the bur has entered the alert zone.