US 12,290,642 B2
Guide extension catheter
Jeffrey Steven Fuller, Brooklyn Park, MN (US); Soo-Young Yoon, Maple Grove, MN (US); Louis Warner Stefanich, Minneapolis, MN (US); and John E. Uschold, North Branch, MN (US)
Assigned to BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed on Oct. 17, 2023, as Appl. No. 18/380,705.
Application 18/380,705 is a continuation of application No. 16/723,519, filed on Dec. 20, 2019, granted, now 11,826,517.
Application 16/723,519 is a continuation of application No. 15/787,678, filed on Oct. 18, 2017, granted, now 10,537,709, issued on Jan. 21, 2020.
Claims priority of provisional application 62/409,603, filed on Oct. 18, 2016.
Prior Publication US 2024/0042169 A1, Feb. 8, 2024
Int. Cl. A61M 25/00 (2006.01); A61M 25/01 (2006.01); A61M 25/06 (2006.01); A61M 25/10 (2013.01)
CPC A61M 25/0023 (2013.01) [A61M 25/0014 (2013.01); A61M 25/0045 (2013.01); A61M 25/0662 (2013.01); A61M 25/10 (2013.01); A61M 2025/0004 (2013.01); A61M 2025/0046 (2013.01); A61M 25/0108 (2013.01); A61M 2025/0175 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A guide extension catheter, comprising:
a proximal member having a rounded proximal portion with a proximal outer diameter, a flattened distal portion, and a transition portion extending from the rounded proximal portion to the flattened distal portion;
a collar member attached to the flattened distal portion; and
a distal sheath member attached to the collar member, the distal sheath member having a lumen and a distal outer diameter larger than the proximal outer diameter, and
wherein the flattened distal portion has a length longer than the transition portion and has a constant width along the length of the flattened distal portion that is greater than the proximal outer diameter.