US 12,064,189 B2
Navigated instrument for use in robotic guided surgery
Neil Crawford, Chandler, AZ (US)
Assigned to Globus Medical, Inc., Audubon, PA (US)
Filed by GLOBUS MEDICAL, INC., Audubon, PA (US)
Filed on Dec. 14, 2020, as Appl. No. 17/120,879.
Claims priority of provisional application 62/947,688, filed on Dec. 13, 2019.
Prior Publication US 2021/0177525 A1, Jun. 17, 2021
Int. Cl. A61B 34/20 (2016.01); A61B 34/30 (2016.01); A61B 90/00 (2016.01)
CPC A61B 34/20 (2016.02) [A61B 34/30 (2016.02); A61B 90/39 (2016.02); A61B 2034/2055 (2016.02)] 17 Claims
OG exemplary drawing
 
1. An instrument for use in a navigated surgical procedure, the instrument comprising:
a proximal portion, a distal portion and a shaft extending therebetween;
a first tracking array coupled to the proximal portion of the instrument;
an instrument tip at an end of the distal portion of the instrument; and
a cam mechanism coupled to the proximal portion of the instrument;
wherein the first tracking array includes a plurality of first tracking markers and is configured to rotate with respect to a central axis of the instrument, and
wherein the cam mechanism has a second tracking marker positioned on a spring loaded arm and is configured to move toward or away from the central axis of the instrument when the first tracking array is rotated about the shaft around the central axis of the instrument.