US 11,737,679 B2
Localization systems and methods of use
Scott E. M. Frushour, Boulder, CO (US); and Evgeni Kopel, Barkan (IL)
Assigned to Covidien LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Dec. 16, 2019, as Appl. No. 16/715,072.
Claims priority of provisional application 62/800,665, filed on Feb. 4, 2019.
Claims priority of provisional application 62/789,604, filed on Jan. 8, 2019.
Prior Publication US 2020/0214769 A1, Jul. 9, 2020
Int. Cl. A61B 5/06 (2006.01); A61B 34/20 (2016.01); A61B 18/14 (2006.01); A61B 90/00 (2016.01); A61B 18/00 (2006.01)
CPC A61B 5/062 (2013.01) [A61B 18/14 (2013.01); A61B 34/20 (2016.02); A61B 2018/00541 (2013.01); A61B 2018/00595 (2013.01); A61B 2034/2051 (2016.02); A61B 2090/3958 (2016.02)] 13 Claims
OG exemplary drawing
 
1. A localization tool for localizing a nodule of a patient, comprising:
a housing;
an elongated body portion having a proximal end disposed proximal to the housing and a distal end terminating within the housing;
a magnetic core disposed within the housing and coupled to the distal end of the elongated body portion, the magnetic core configured to attract a magnetic fiducial associated with a position of the nodule;
an electrocautery element coupled to the elongated body portion and disposed within the housing, the electrocautery element configured to be coupled to a source of energy for delivering energy to tissue to mark the tissue;
a metal coil wrapped around the electrocautery element and the magnetic core, the metal coil configured to generate a magnetic field; and
a magnetic field sensor attached to the housing and configured to sense a magnetic attraction of the magnetic fiducial to the magnetic core, wherein the magnetic field sensor is in communication with a processor configured to determine a distance between the magnetic field sensor and the magnetic fiducial marker based on the sensed magnetic attraction for display of the determined distance on a display device.