US 12,274,490 B2
Irrigated ablation electrode assemblies
Steven C. Christian, New Brighton, 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 Mar. 29, 2021, as Appl. No. 17/216,309.
Application 14/326,823 is a division of application No. 12/971,645, filed on Dec. 17, 2010, granted, now 8,814,857, issued on Aug. 26, 2014.
Application 17/216,309 is a continuation of application No. 15/873,574, filed on Jan. 17, 2018, granted, now 10,987,162.
Application 15/873,574 is a continuation of application No. 14/326,823, filed on Jul. 9, 2014, granted, now 9,901,397, issued on Feb. 27, 2018.
Prior Publication US 2021/0282846 A1, Sep. 16, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01); A61B 18/02 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 2018/00029 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00714 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/00815 (2013.01); A61B 2018/00821 (2013.01); A61B 2018/00863 (2013.01); A61B 2018/00875 (2013.01); A61B 18/02 (2013.01); A61B 2217/007 (2013.01); A61B 2218/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An irrigated ablation electrode assembly of an irrigation catheter, the assembly comprising:
a body having a proximal end coupled to a shaft of the irrigation catheter, the body including a longitudinal axis, a distal portion, and a proximal portion, the distal portion defining:
i) at least one irrigation port, and
ii) at least one axially extending passageway positioned off-axis from the longitudinal axis of the body, the at least one axially extending passageway configured to direct irrigation fluid from the proximal portion of the body to the distal portion of the body,
wherein the at least one irrigation port is configured to direct the irrigation fluid proximally from the at least one axially extending passageway.