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:
Jul. 21, 2026

Filed:

Jul. 18, 2022
Applicant:

Otsuka Medical Devices Co., Ltd., Tokyo, JP;

Inventors:

Liang Zhai, Belmont, CA (US);

Eric Dailey, San Jose, CA (US);

James D. Mazzone, San Jose, CA (US);

Desmond Cheung, San Jose, CA (US);

Shruthi Thirumalai, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 18/14 (2006.01); A61B 18/00 (2006.01);
U.S. Cl.
CPC ...
A61B 18/1492 (2013.01); A61B 2018/00261 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00732 (2013.01);
Abstract

A catheter comprising a transducer located in an interior of a balloon, the transducer configured to transmit an acoustic signal at an operational frequency that provides an acoustic field with multiple lobes along a longitudinal axis of the transducer. Each of the lobes has a spatial intensity distribution at a surface of the balloon and parallel to a surface of the transducer which comprises a spatial intensity maximum and one or more reduced spatial acoustic intensity locations where the spatial intensity of the acoustic field of the transducer is 50% or less of a value of one of the spatial intensity maxima, where the reduced locations are between the spatial intensity maxima and adjacent to one another along the longitudinal axis of then transducer. The catheter further comprises at least an electrode configured to transmit an electromagnetic signal, the electrode being positioned on the balloon at one of the reduced spatial acoustic intensity locations of the transducer.


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