US 12,144,688 B2
Cannulated screw length measurement gauge
Brian Conley, Portland, OR (US)
Assigned to Acumed LLC, Hillsboro, OR (US)
Filed by Acumed LLC, Hillsboro, OR (US)
Filed on Sep. 24, 2021, as Appl. No. 17/483,979.
Claims priority of provisional application 63/086,773, filed on Oct. 2, 2020.
Prior Publication US 2022/0104902 A1, Apr. 7, 2022
Int. Cl. A61B 90/00 (2016.01); A61B 17/86 (2006.01)
CPC A61B 90/06 (2016.02) [A61B 17/864 (2013.01); A61B 2090/062 (2016.02)] 7 Claims
OG exemplary drawing
 
1. A screw length determination system comprising:
a set of guidewires; and
a depth gauge device including:
a tube having (i) a guidewire channel configured to receive the set of guidewires and (ii) a measurement rod channel, the measurement rod channel having a greater cross sectional area than the guidewire channel; and
a measurement rod positioned within the measurement rod channel, wherein a positioning of the measurement rod is adjustable in response to applied force via the guidewires, and wherein the measurement rod includes a plurality of indicators along its length,
wherein an interface between the measurement rod channel and the measurement rod maintains a set positioning of the measurement rod in the absence of applied force, wherein each guidewire in the set has a different size diameter,
wherein the guidewire channel is sized to accommodate each of the guidewires in the set.