US 12,268,453 B2
Navigation system and method
Brad Jacobsen, Erie, CO (US); Danail G. Danailov, Westminster, CO (US); Andrew Bzostek, Boulder, CO (US); and Andrew Wald, Fort Worth, TX (US)
Assigned to Medtronic Navigation, Inc., Lafayette, CO (US)
Filed by Medtronic Navigation, Inc., Louisville, CO (US)
Filed on Apr. 19, 2023, as Appl. No. 18/303,384.
Application 18/303,384 is a division of application No. 17/064,813, filed on Oct. 7, 2020, granted, now 11,660,146.
Application 17/064,813 is a continuation of application No. 15/957,539, filed on Apr. 19, 2018, granted, now 11,564,747, issued on Jan. 31, 2023.
Claims priority of provisional application 62/487,801, filed on Apr. 20, 2017.
Prior Publication US 2023/0270509 A1, Aug. 31, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/00 (2006.01); A61B 5/06 (2006.01); A61B 34/20 (2016.01); G01D 5/20 (2006.01); G01R 33/02 (2006.01); H01F 27/28 (2006.01); A61B 90/00 (2016.01)
CPC A61B 34/20 (2016.02) [A61B 5/062 (2013.01); G01D 5/204 (2013.01); G01R 33/02 (2013.01); H01F 27/28 (2013.01); A61B 5/066 (2013.01); A61B 2034/2051 (2016.02); A61B 90/361 (2016.02); A61B 2090/374 (2016.02); A61B 2090/3762 (2016.02)] 19 Claims
OG exemplary drawing
 
1. A system having a localizer, comprising:
a transmitting coil array operable to generate a transmitted magnetic field, the transmitting coil array including a first coil positioned along a first plane, a second coil positioned along a second plane, and a third coil positioned along a third plane;
a field shaping assembly, comprising:
a conductive member having a first surface extending along a fourth plane with a first surface area;
a first magnetic permeable member having a second surface with a second surface area; and
a structural component having a coil holding region, the coil holding region having,
a first coil pocket having a first bottom surface defining the first plane and a first raised outer wall configured to hold the first coil relative to the first plane,
a second coil pocket having a second bottom surface defining the second plane and a second raised outer wall configured to hold the second coil relative to the second plane, and
a third coil pocket having a third bottom surface defining the third plane and a third raised outer wall configured to hold the third coil relative to the third plane;
wherein the field shaping assembly and the transmitting coil array cooperate to generate a field;
wherein the first plane, the second plane, and the third plane are each at a non-zero angle relative to the fourth plane.