US 12,226,596 B2
Magnetic field direction detection
Robin Scott Urry, Layton, UT (US)
Assigned to Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed by Bard Access Systems, Inc., Salt Lake City, UT (US)
Filed on Aug. 30, 2021, as Appl. No. 17/461,416.
Claims priority of provisional application 63/072,697, filed on Aug. 31, 2020.
Prior Publication US 2022/0062586 A1, Mar. 3, 2022
Int. Cl. A61M 25/01 (2006.01)
CPC A61M 25/0127 (2013.01) [A61M 2025/0166 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3561 (2013.01); A61M 2205/583 (2013.01); A61M 2205/6054 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for magnetic field direction detection when placing a medical device comprising:
a sensor configured to track the medical device, the sensor including a magnetic sensor printed circuit board (PCB) including a plurality of magnetometers arranged in a magnetometer array; and
a console coupled to the sensor, the console including a processor and non-transitory computer-readable medium having stored thereon a plurality of logic modules that, when executed by the processor, are configured to perform operations including:
receiving magnetic field strength values detected by the plurality of magnetometers;
determining a position of each of the plurality of magnetometers on the sensor based on a magnetometer ID of each of the plurality of magnetometers arranged in the magnetometer array;
determining a direction of a magnetic field source relative to the sensor based on the magnetic field strength values detected by the plurality of magnetometers and the position on the sensor of each of the plurality of magnetometers;
generating a graphic configured to illustrate the direction of the magnetic field source on a display; and
correlating each magnetometer ID with the magnetic field strength values measured at each of the plurality of magnetometers within the magnetometer array.