US 12,082,874 B2
Irrigated ablation electrode assembly having off-center irrigation passageway
Huisun Wang, Maple Grove, MN (US); and Christopher J. Geurkink, Minnetonka, MN (US)
Assigned to St. Jude Medical, Atrial Fibrillation Division, Inc., St. Paul, MN (US)
Filed by St Jude Medical, Atrial Fibrillation Division, Inc, St. Paul, MN (US)
Filed on Apr. 14, 2020, as Appl. No. 16/848,599.
Application 16/848,599 is a continuation of application No. 16/134,503, filed on Sep. 18, 2018, granted, now 10,653,481.
Application 16/134,503 is a continuation of application No. 12/347,270, filed on Dec. 31, 2008, granted, now 10,105,177, issued on Oct. 23, 2018.
Prior Publication US 2020/0305971 A1, Oct. 1, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61M 25/00 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61M 25/0069 (2013.01); A61M 25/007 (2013.01); A61B 2017/00084 (2013.01); A61B 2017/00088 (2013.01); A61B 2017/00092 (2013.01); A61B 2018/00011 (2013.01); A61B 2018/00029 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00702 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/00797 (2013.01); A61B 2018/00809 (2013.01); A61B 2018/00815 (2013.01); A61B 2018/00821 (2013.01); A61B 2218/002 (2013.01); Y10T 29/49826 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A distal assembly of an irrigated ablation catheter, comprising:
a manifold extending along a central axis;
an electrode coupled to a distal end of the manifold;
the manifold comprising a distribution cavity, wherein the manifold is configured for connection to a distal end of a shaft of the catheter, wherein a longitudinal axis of a distal end portion of the distribution cavity is offset in distance from the central axis by a first amount of offset, and wherein the distal end portion of the distribution cavity extends through the electrode along a direction parallel to the central axis; and
the electrode comprising a first irrigation outlet, the first irrigation outlet offset in distance from the central axis by the first amount of offset, wherein the first irrigation outlet of the electrode aligns with the distal end portion of the distribution cavity.