US 12,290,297 B2
Systems and methods for three dimensional reconstruction of a bent rod used in surgery
David Leff, Philadelphia, PA (US); and Samuel Paster, Jamaica Plain, MA (US)
Assigned to Globus Medical, Inc., Audubon, PA (US)
Filed by GLOBUS MEDICAL, INC., Audubon, PA (US)
Filed on May 3, 2022, as Appl. No. 17/735,467.
Prior Publication US 2023/0355289 A1, Nov. 9, 2023
Int. Cl. A61B 17/00 (2006.01); A61B 17/88 (2006.01); A61B 34/20 (2016.01)
CPC A61B 17/8863 (2013.01) [A61B 2034/2055 (2016.02); A61B 2034/2068 (2016.02)] 20 Claims
OG exemplary drawing
 
1. A rod bender system comprising:
a first handle arm and a second handle arm coupled to a first pivot point; and
a body portion coupled to the first handle arm at a second pivot point and the second handle arm coupled to the body portion at a third pivot point,
a navigated tracing instrument having a navigated instrument that includes an array and a through hole;
wherein the body portion includes a first distal arm and a second distal arm, the first distal arm having a first rolling element and a first navigation array with one or more optical markers, the second distal arm having a second rolling element and a second navigation array with one or more optical markers, and the body portion configured with a barrel positioned on a center portion of the body portion,
wherein a spinal rod having a third navigation array having one or more optical markers is positioned between the first and second rolling elements and the barrel, and
wherein a shape of the rod as it is being bent is trackable by a camera system using the optical markers and a three dimensional reconstruction of the rod is created using tracked positions of the optical markers,
wherein the navigated instrument is configured to receive the spinal rod within the through hole, the through hole being configured to have a curved or toroidal internal surface to accommodate bent spinal rods.