The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 21, 2021

Filed:

Oct. 09, 2018
Applicant:

Vanderbilt University, Nashville, TN (US);

Inventors:

Pietro Valdastri, Leeds, GB;

Piotr R. Slawinski, Lincoln, NE (US);

Addisu Z. Taddese, Nashville, TN (US);

Keith L. Obstein, Nashville, TN (US);

Assignee:

Vanderbilt University, Nashville, TN (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/00 (2006.01); A61B 5/00 (2006.01); A61B 1/04 (2006.01); A61B 5/06 (2006.01); A61B 34/00 (2016.01); A61B 34/20 (2016.01); A61B 1/018 (2006.01);
U.S. Cl.
CPC ...
A61B 1/00158 (2013.01); A61B 1/0008 (2013.01); A61B 1/00149 (2013.01); A61B 1/018 (2013.01); A61B 1/041 (2013.01); A61B 5/062 (2013.01); A61B 5/6861 (2013.01); A61B 34/73 (2016.02); A61B 2034/2048 (2016.02); A61B 2034/2051 (2016.02); A61B 2034/731 (2016.02);
Abstract

Systems and methods are presented for localization of a capsule based on magnetic fields. The capsule is positioned in a magnetic field generated by a first magnet and an electromagnetic coil is operated to generate a sinusoidal magnetic field with a magnetic moment orthogonal to the magnetic moment of the first magnet. An average signal measurement calculated for each magnetic field sensor is defined as the magnetic field applied to the magnetic field sensor by the first magnet and used as an offset to determine the magnetic field applied by the electromagnetic coil. The pose of the capsule is then determined based at least in part on a combination of magnetic field signals applied by the electromagnetic coil to each of the magnetic field sensors.


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