US 12,446,900 B2
Protective resection guide for robotically assisted arthroplasty
David Miller, Warsaw, IN (US); and Kaitlyn Lasko, Warsaw, IN (US)
Assigned to Zimmer, Inc., Warsaw, IN (US)
Filed by Zimmer, Inc., Warsaw, IN (US)
Filed on Oct. 26, 2022, as Appl. No. 17/974,038.
Claims priority of provisional application 63/272,534, filed on Oct. 27, 2021.
Prior Publication US 2023/0127066 A1, Apr. 27, 2023
Int. Cl. A61B 17/17 (2006.01); A61B 34/30 (2016.01)
CPC A61B 17/175 (2013.01) [A61B 34/30 (2016.02); A61B 17/17 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cutting guide for a robotic surgical system, the cutting guide comprising:
a cutting block defining a guide surface to guide a cutting instrument along a trajectory and a distal surface into which the guide surface extends;
an arm connected to the cutting block to couple the cutting guide to the robotic surgical system; and
a first retractable shield configured to extend from a first retracted position clear of the trajectory to a second deployed position within the trajectory;
wherein in the second deployed position the first retractable shield defines an encirclement zone between the distal surface and the first retractable shield configured to at least partially surround a bone structure to limit translation of the cutting instrument along the guide surface with respect to the bone structure.