US 12,329,553 B2
Filter system and method for imaging a subject
David A. Garlow, Lynnfield, MA (US); Robert P. Cloutier, Lancaster, MA (US); and Elizabeth A. Levasseur, New Boston, NH (US)
Assigned to Medtronic Navigation, Inc., Lafayette, CO (US)
Filed by Medtronic Navigation, Inc., Louisville, CO (US)
Filed on Oct. 13, 2023, as Appl. No. 18/486,418.
Application 16/893,003 is a division of application No. 15/498,921, filed on Apr. 27, 2017, granted, now 10,682,103.
Application 18/486,418 is a continuation of application No. 17/836,281, filed on Jun. 9, 2022, granted, now 11,786,192.
Application 17/836,281 is a continuation of application No. 16/893,003, filed on Jun. 4, 2020, granted, now 11,369,324, issued on Jun. 28, 2022.
Prior Publication US 2024/0041413 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 6/00 (2024.01); A61B 6/06 (2006.01); A61B 6/12 (2006.01); A61B 6/40 (2024.01); A61B 34/20 (2016.01); A61M 5/00 (2006.01); A61B 90/00 (2016.01)
CPC A61B 6/4035 (2013.01) [A61B 6/06 (2013.01); A61B 6/12 (2013.01); A61B 6/4405 (2013.01); A61B 6/481 (2013.01); A61B 6/482 (2013.01); A61B 6/5205 (2013.01); A61B 6/56 (2013.01); A61B 34/20 (2016.02); A61M 5/007 (2013.01); A61B 2034/2051 (2016.02); A61B 2034/2055 (2016.02); A61B 2034/2059 (2016.02); A61B 2090/3762 (2016.02)] 20 Claims
OG exemplary drawing
 
1. An assembly for an imaging system, comprising:
a collimator assembly having an exposure opening;
a multiple filter position carrier having a plurality of filter positions;
a first filter medium positioned in a first filter position of the plurality of filter positions;
a drive system having a drive motor connected to the multiple filter position carrier to selectively move the multiple filter position carrier to at least one of the first filter position or a second filter position to be aligned with the exposure opening;
a first leaf configured to move relative to the exposure opening with a first linear drive mechanism; and
a second leaf configured to move relative to the exposure opening with a second linear motor drive mechanism;
wherein the movable first and second leafs are configured to change the size and shape of the exposure opening.