US 11,944,518 B2
System and method for treatment of eustachian tube from middle ear approach
Randy S. Chan, San Jose, CA (US); Ketan P. Muni, San Jose, CA (US); Hung V. Ha, San Jose, CA (US); Andy Nguyen, San Jose, CA (US); Holger Sudhoff, Bielefeld (DE); Sivette Lam, Milpitas, CA (US); Marc Dean, Fort Worth, TX (US); and Dennis S. Poe, Chestnut Hill, MA (US)
Assigned to Acclarent, Inc., Irvine, CA (US)
Filed by Acclarent, Inc., Irvine, CA (US)
Filed on Nov. 30, 2020, as Appl. No. 17/106,318.
Application 17/106,318 is a continuation of application No. 16/053,925, filed on Aug. 3, 2018, granted, now 10,898,384.
Application 16/053,925 is a continuation of application No. 14/928,221, filed on Oct. 30, 2015, granted, now 10,070,993, issued on Sep. 11, 2018.
Prior Publication US 2021/0161719 A1, Jun. 3, 2021
Int. Cl. A61F 11/00 (2022.01); A61B 1/002 (2006.01); A61B 1/07 (2006.01); A61B 1/227 (2006.01); A61B 17/24 (2006.01); A61B 17/32 (2006.01); A61F 11/20 (2022.01); A61M 25/00 (2006.01); A61M 25/10 (2013.01); A61M 29/02 (2006.01); A61B 17/22 (2006.01); A61M 25/01 (2006.01)
CPC A61F 11/202 (2022.01) [A61B 1/002 (2013.01); A61B 1/07 (2013.01); A61B 1/227 (2013.01); A61B 17/24 (2013.01); A61B 17/32 (2013.01); A61M 25/0041 (2013.01); A61M 25/10 (2013.01); A61M 29/02 (2013.01); A61B 17/22032 (2013.01); A61B 2017/22082 (2013.01); A61M 2025/0004 (2013.01); A61M 25/0054 (2013.01); A61M 25/0097 (2013.01); A61M 25/0113 (2013.01); A61M 2025/1093 (2013.01); A61M 2210/0675 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A dilation catheter, comprising:
(a) a rigid proximal body, the rigid proximal body comprising:
(i) an inflation port, and
(ii) an elongate portion extending distally from the inflation port along a longitudinal axis, the elongate portion defining a first section of an inflation lumen, the first section of the inflation lumen being in fluid communication with the inflation port, the elongate portion further defining a first portion of an injection lumen;
(b) an inflatable balloon configurated to transition between a deflated state and an inflated state; and
(c) a distal shaft extending distally from the elongate portion of the rigid proximal body, the distal shaft being coupled with the inflatable balloon, the distal shaft defining a second section of the inflation lumen, the second section of the inflation lumen being in fluid communication with the first section of the inflation lumen and the inflatable balloon, the distal shaft being configured to transition from an initial angle relative to the longitudinal axis to a selected angle relative to the longitudinal axis, the distal shaft being configured to access a targeted anatomical passageway of a patient without buckling in the selected angle,
the rigid proximal body further comprising an injection port located proximally relative to the elongate portion, the injection lumen being in communication with the injection port.