US 11,051,868 B2
Distal balloon impedance and temperature recording to monitor pulmonary vein ablation and occlusion
Boaz Avitall, Chicago, IL (US); and Catherine R. Condie, Shoreview, MN (US)
Assigned to Medtronic CryoCath LP
Filed by Medtronic CryoCath LP, Toronto (CA)
Filed on Jul. 19, 2019, as Appl. No. 16/517,150.
Application 16/517,150 is a continuation of application No. 15/688,107, filed on Aug. 28, 2017, granted, now 10,376,299.
Application 15/688,107 is a continuation of application No. 14/560,793, filed on Dec. 4, 2014, granted, now 9,993,279, issued on Jun. 12, 2018.
Claims priority of provisional application 61/912,991, filed on Dec. 6, 2013.
Prior Publication US 2019/0365452 A1, Dec. 5, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/02 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/02 (2013.01) [A61B 2018/0022 (2013.01); A61B 2018/00404 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00684 (2013.01); A61B 2018/00821 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/0268 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A cryoablation device, comprising:
an elongate body having a proximal portion and a distal portion opposite the proximal portion;
an expandable element coupled to the distal portion of the elongate body;
a first electrode disposed proximal to the expandable element, the first electrode being a reference electrode;
a shaft disposed distal to the expandable element;
a shaft disposed distal to the expandable element;
a plurality of discrete electrodes disposed circumferentially about the shaft, each of the plurality of discrete electrodes being spaced a distance apart; and
at least one thermocouple disposed distal to the first electrode.