US 11,980,708 B2
Sinus dilation catheter
John R. Drontle, Buffalo, MN (US); Anthony J. Hanson, Chaska, MN (US); and Paul Lesch, Lino Lakes, MN (US)
Assigned to Entellus Medical, Inc., Maple Grove, MN (US)
Filed by Entellus Medical, Inc., Maple Grove, MN (US)
Filed on Sep. 20, 2021, as Appl. No. 17/479,580.
Application 17/479,580 is a continuation of application No. 16/393,594, filed on Apr. 24, 2019, granted, now 11,147,908.
Application 16/393,594 is a continuation of application No. 15/290,930, filed on Oct. 11, 2016, granted, now 10,307,519, issued on Jun. 4, 2019.
Application 15/290,930 is a continuation of application No. 13/535,076, filed on Jun. 27, 2012, granted, now 9,486,614, issued on Nov. 8, 2016.
Claims priority of provisional application 61/502,699, filed on Jun. 29, 2011.
Prior Publication US 2022/0001093 A1, Jan. 6, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 1/00 (2006.01); A61B 17/24 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01); A61M 29/02 (2006.01)
CPC A61M 1/76 (2021.05) [A61B 17/24 (2013.01); A61M 25/01 (2013.01); A61M 29/02 (2013.01); A61M 25/0032 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A balloon dilation catheter, comprising:
a handle having a proximal end and a distal end;
an inner guide member that extends distally from the distal end of the handle;
a shaft slidably arranged with respect to the inner guide member, wherein a distal portion of the shaft includes an inflatable balloon;
a shaft advancing member configured to move the shaft and the inflatable balloon along the inner guide member from a retracted state to an extended state; and
an inflation lumen that defines a fluid channel between an inflation port on the handle and an interior of the inflatable balloon,
wherein the inflation lumen comprises a looped portion that is configured to provide slack to the inflation lumen such that the inflatable balloon is movable between the retracted state and the extended state while maintaining the inflatable balloon in fluid communication with the inflation port, and
wherein the inflation lumen is folded back upon itself at the looped portion.