US 11,712,548 B2
Eustachian tube dilation catheter with depth indicia
Fatemeh Akbarian, Rancho Palos Verdes, CA (US); and Jetmir Palushi, Irvine, CA (US)
Assigned to Acclarent, Inc., Irvine, CA (US)
Filed by Acclarent, Inc., Irvine, CA (US)
Filed on Jan. 16, 2020, as Appl. No. 16/744,599.
Claims priority of provisional application 62/825,854, filed on Mar. 29, 2019.
Prior Publication US 2020/0306513 A1, Oct. 1, 2020
Int. Cl. A61M 29/02 (2006.01); A61M 25/09 (2006.01); A61M 25/10 (2013.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01)
CPC A61M 29/02 (2013.01) [A61M 25/09 (2013.01); A61M 2025/0008 (2013.01); A61M 2025/0166 (2013.01); A61M 2025/1061 (2013.01); A61M 2029/025 (2013.01); A61M 2205/502 (2013.01); A61M 2210/0675 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical system, comprising:
(a) a guidewire including a guidewire body extending to a distal body end portion thereof, wherein the distal body end portion terminates into an atraumatic distal tip;
(b) a dilator secured on the distal body end portion and configured to expand from a contracted state to an expanded state, wherein the dilator, in the contracted state, and the atraumatic distal tip are configured to pass through an isthmus of a Eustachian tube from a middle ear, and wherein the dilator in the expanded state is configured to dilate the Eustachian tube;
(c) a reference feature secured relative to the guidewire; and
(d) a first marker positioned on the guidewire a first predetermined distance from the reference feature and configured to indicate the first predetermined distance to an operator for determining a depth of the reference feature in an anatomical passageway.