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:
Oct. 04, 2022

Filed:

Nov. 13, 2020
Applicant:

California Institute of Technology, Pasadena, CA (US);

Inventors:

Saransh Sharma, Pasadena, CA (US);

Mikhail Shapiro, Los Angeles, CA (US);

Azita Emami, Pasadena, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 33/00 (2006.01); A61B 5/07 (2006.01); A61B 5/00 (2006.01); A61B 5/05 (2021.01); G01B 7/31 (2006.01); G01R 33/022 (2006.01); G01R 33/385 (2006.01);
U.S. Cl.
CPC ...
A61B 5/073 (2013.01); A61B 5/05 (2013.01); A61B 5/076 (2013.01); A61B 5/6861 (2013.01); G01B 7/31 (2013.01); G01R 33/022 (2013.01); G01R 33/385 (2013.01); A61B 2562/0223 (2013.01);
Abstract

An apparatus for producing magnetic field gradients includes (a) a first planar electromagnet coil set configured to produce a first magnetic field gradient with respect to a first axis, (b) a second planar electromagnet coil set configured to produce a second magnetic field gradient with respect to a second axis that is orthogonal to the first axis, (c) a third planar electromagnet coil set configured to produce a third magnetic field gradient with respect to a third axis that is orthogonal to the first and second axes, and (d) a controller configured to selectively provide power to the first, second, and/or third electromagnet coil sets to sequentially produce a localization magnetic field gradient with respect to each of the first, second, and third axes, at least a portion of each localization magnetic field gradient having a monotonically-varying magnetic field magnitude along a respective axis.


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