US 11,871,986 B2
Irrigated ablation electrode having smooth edges to minimize tissue char
Huisun Wang, Maple Grove, MN (US); and Sacha C. Hall, Westborough, MA (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 Jul. 19, 2021, as Appl. No. 17/379,801.
Application 17/379,801 is a continuation of application No. 16/195,575, filed on Nov. 19, 2018, granted, now 11,096,742.
Application 16/195,575 is a continuation of application No. 12/346,634, filed on Dec. 30, 2008, granted, now 10,130,418, issued on Nov. 20, 2018.
Application 12/346,634 is a continuation in part of application No. PCT/US2007/080920, filed on Oct. 10, 2007.
Claims priority of provisional application 60/828,955, filed on Oct. 10, 2006.
Prior Publication US 2022/0000549 A1, Jan. 6, 2022
Int. Cl. A61B 18/14 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 2018/00035 (2013.01); A61B 2018/00101 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/1472 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An irrigated ablation electrode assembly comprising:
an inner lumen;
a distal member constructed from an electrically conductive material, the distal member comprising:
an inner cavity at a distal end;
an outer surface at a proximal end, the outer surface configured for delivery of ablative energy; and
a plurality of longitudinally extending component cavities positioned between the distal end and the proximal end, wherein the plurality of longitudinally extending component cavities comprises a first component cavity and a second component cavity;
a proximal member configured for connection to the distal member and positioned at the distal end of the distal member, a portion of the proximal member received in the inner cavity, the proximal member comprising:
an outer surface; and
a proximal fluid passageway extending from the inner lumen to the outer surface of the distal member; and
a plurality of temperature sensors terminating in the plurality of longitudinally extending component cavities in the distal member, wherein the plurality of temperature sensors comprises a first temperature sensor terminating in the first component cavity, and a second temperature sensor terminating in the second component cavity.