US 12,076,079 B2
Irrigated high density electrode catheter
Andrew R. Oliverius, Eagan, MN (US); Ryan Kenneth Buesseler, Delano, MN (US); John Hong, Prior Lake, MN (US); Jodee Wakefield, Minneapolis, MN (US); and Brent Ford, Minneapolis, MN (US)
Assigned to St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Filed by St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Filed on Dec. 16, 2022, as Appl. No. 18/083,008.
Application 18/083,008 is a continuation of application No. 15/585,859, filed on May 3, 2017, granted, now 11,540,876.
Claims priority of provisional application 62/331,292, filed on May 3, 2016.
Prior Publication US 2023/0121397 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 34/20 (2016.01); A61M 25/00 (2006.01); A61M 39/12 (2006.01); A61B 18/00 (2006.01); A61M 5/14 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 34/20 (2016.02); A61M 25/0043 (2013.01); A61M 25/0068 (2013.01); A61M 39/12 (2013.01); A61B 2018/0016 (2013.01); A61B 2018/00214 (2013.01); A61B 2018/00351 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00839 (2013.01); A61B 2018/1407 (2013.01); A61B 2018/1467 (2013.01); A61B 2034/2051 (2016.02); A61B 2217/007 (2013.01); A61B 2218/002 (2013.01); A61M 5/14 (2013.01); A61M 2205/3317 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A catheter, comprising:
an elongate shaft comprising a proximal end and a distal end, wherein the elongate shaft defines a shaft longitudinal axis;
an electrode assembly comprising microelectrodes;
a connective stem comprising a first connective stem member and a second connective stem member, wherein the first connective stem member and the second connective stem member are separate components that can be physically separated and assembled to form the connective stem, wherein the first connective stem member and the second connective stem member are configured to be assembled together with a proximal end portion of the electrode assembly to house the proximal end portion of the electrode assembly prior to insertion of the connective stem and the proximal end portion of the electrode assembly into the distal end of the elongate shaft, wherein the connective stem defines a first sensor receptacle and a second sensor receptacle in an exterior surface of the connective stem;
a coupler configured for coupling with the connective stem after the first connective stem member and the second connective stem member are assembled together with the proximal end portion of the electrode assembly;
a first five degree of freedom magnetic position sensor disposed in the first sensor receptacle that is elongated along a first sensor longitudinal axis; and
a second five degree of freedom magnetic position sensor disposed in the second sensor receptacle that is elongated along a second sensor longitudinal axis that is not parallel to the first sensor longitudinal axis, wherein a first signal generated by the first five degree of freedom magnetic position sensor and a second signal generated by the second five degree of freedom magnetic position sensor can be analyzed to determine a position and orientation of the connective stem with six degrees of freedom.