US 12,245,785 B2
Balloon dilation catheter for use in sinus drainage pathways
Ryan Cerepak, Champlin, MN (US); Tony Hanson, Plymouth, MN (US); Alexander Houck, Hopkins, MN (US); and John Drontle, Buffalo, MN (US)
Assigned to Stryker Corporation, Portage, MI (US)
Appl. No. 17/772,462
Filed by Entellus Medical, Inc., Maple Grove, MN (US)
PCT Filed Oct. 29, 2020, PCT No. PCT/US2020/057931
§ 371(c)(1), (2) Date Apr. 27, 2022,
PCT Pub. No. WO2021/087094, PCT Pub. Date May 6, 2021.
Claims priority of provisional application 62/928,324, filed on Oct. 30, 2019.
Prior Publication US 2022/0378454 A1, Dec. 1, 2022
Int. Cl. A61B 17/24 (2006.01); A61B 17/00 (2006.01); A61B 90/30 (2016.01); A61M 29/02 (2006.01); B29C 65/04 (2006.01); B29K 705/12 (2006.01); B29L 31/00 (2006.01)
CPC A61B 17/24 (2013.01) [A61B 90/30 (2016.02); A61M 29/02 (2013.01); B29C 65/04 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/00557 (2013.01); A61B 2017/246 (2013.01); A61B 2090/306 (2016.02); A61M 2210/0618 (2013.01); A61M 2210/0681 (2013.01); B29K 2705/12 (2013.01); B29L 2031/7543 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A balloon dilation catheter for dilating sinus drainage pathways comprising:
a handle having a proximal end and a distal end, the handle configured to be gripped by an operator;
a substantially rigid inner guide member having a distal end and a proximal end, wherein the substantially rigid inner guide member includes a lumen extending between the distal end and the proximal end of the substantially rigid inner guide member, wherein the substantially rigid inner guide member extends longitudinally from the distal end of the handle, and wherein the distal end of the substantially rigid inner guide member includes a curved portion with a radius of curvature greater than zero;
a shaft arranged over the substantially rigid inner guide member;
a balloon coupled to the shaft such that the balloon is fixed relative to the shaft, wherein the balloon is positioned over the curved portion of the substantially rigid inner guide member; and
a polymer ball tip positioned at a distal end of the balloon, wherein the polymer ball tip is formed from excess balloon material such that the polymer ball tip is directly coupled to the distal end of the balloon, and wherein the polymer ball tip is distal of the distal end of the substantially rigid inner guide member.