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:
Apr. 02, 2024

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 ...
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

A method for in-vivo monitoring of a target internal volume of a mammal that includes: (a) placing the target internal volume proximal to a three-dimensional magnetic field generator; (b) generating first, second, and third magnetic field gradients along respective first, second, and third axes that are mutually orthogonal; (c) measuring first, second, and third magnetic fields with a three-dimensional magnetic sensor disposed in an ingestible capsule, the ingestible capsule disposed in the target internal volume; (d) with a controller in electrical communication with the three-dimensional magnetic sensor, generating a magnetic sensor output signal that encodes a measurement of the first, second, and third magnetic fields; (e) broadcasting the magnetic sensor output signal from an antenna disposed in the ingestible capsule, and (f) receiving the magnetic sensor output signal with a receiver. The received magnetic field data can be used to determine the three-dimensional position of the ingestible capsule.


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