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:
Aug. 11, 2020

Filed:

Dec. 28, 2015
Applicants:

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

University of California Los Angeles, Los Angeles, CA (US);

University of Southern California, Los Angeles, CA (US);

Inventors:

Yu-Chong Tai, Pasadena, CA (US);

Tzung Hsiai, Santa Monica, CA (US);

Yu Zhao, Shenhen, CN;

Xiaoxiao Zhang, Los Angeles, CA (US);

Fei Yu, Chatsworth, CA (US);

Assignees:

CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US);

UNIVERSITY OF CALIFORNIA LOS ANGELES, Los Angeles, CA (US);

UNIVERSITY OF SOUTHERN CALIFORNIA, Los Angeles, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/053 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/0538 (2013.01); A61B 5/6853 (2013.01);
Abstract

A portion of a concentric bipolar microelectrode sensor is attached to an inflatable balloon of a catheter. Another portion of the concentric bipolar microelectrode sensor is also attached to a body of the catheter. The inflatable balloon is guided to become in proximity of a tissue. The inflatable balloon is then inflated. The inflation increases the likelihood of contact between microelectrodes of the concentric bipolar microelectrode sensor with the tissue. A voltage is supplied to the microelectrodes. The tissue's impedance is accordingly measured over a frequency range. A disease of the tissue, such as a lesion, is diagnosed based on the measured impedance.


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