David A Locke

US Patent:

20210138207, May 13, 2021

Filed:

Oct 1, 2020

Appl. No.:

17/060129

Inventors:

- Irvine CA, US
Fatemeh Akbarian - Rancho Palos Verdes CA, US
David M. Locke - Springboro OH, US
Athanasios Papadakis - Newport Beach CA, US
Madison K. Vanosdoll - Irvine CA, US

International Classification:

A61M 25/10

Abstract:

A method of dilating a target anatomical structure of an ear, a nose, or a throat of a patient includes inserting a distal end of a balloon catheter into the ear, the nose, or the throat. The balloon catheter includes a balloon assembly coaxially disposed along a proximally extending shaft. The balloon assembly includes at least first and second dilation balloons that at least partially overlap one another. The method also includes distally advancing the distal end until the balloon assembly is disposed in the target anatomical structure. The method also includes selectively dilating the target anatomical structure based on a diameter of the target anatomical structure by inflating the first dilation balloon to a first diameter or inflating the second dilation balloon to a second diameter that is greater than the first diameter. The second inflation lumen is not in fluid communication with the first inflation lumen.