US 11,701,159 B2
MRI-compatible cryocatheters and system
Nicolas Coulombe, Anjou (CA); Ioana Deac, Vaudreuil-Dorion (CA); John B. Horrigan, Beverly, MA (US); Jean-Pierre Lalonde, Candiac (CA); and Dan Wittenberger, L'lle Bizard (CA)
Assigned to Medtronic CryoCath LP, Toronto (CA)
Filed by Medtronic CryoCath LP, Toronto (CA)
Filed on Apr. 24, 2017, as Appl. No. 15/495,281.
Claims priority of provisional application 62/383,028, filed on Sep. 2, 2016.
Prior Publication US 2018/0064481 A1, Mar. 8, 2018
Int. Cl. A61B 18/02 (2006.01); A61B 5/01 (2006.01); A61B 5/0215 (2006.01); A61M 25/01 (2006.01); A61B 18/00 (2006.01); A61B 5/0205 (2006.01); A61B 17/00 (2006.01); A61M 25/00 (2006.01)
CPC A61B 18/02 (2013.01) [A61B 5/01 (2013.01); A61B 5/02154 (2013.01); A61B 5/02055 (2013.01); A61B 2017/00911 (2013.01); A61B 2018/00255 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00791 (2013.01); A61B 2018/0212 (2013.01); A61B 2018/0262 (2013.01); A61B 2505/05 (2013.01); A61B 2562/0233 (2013.01); A61M 25/0074 (2013.01); A61M 25/0147 (2013.01); A61M 2205/05 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An MRI-compatible medical system, the medical system comprising:
a medical device including:
an elongate body including a proximal portion, a distal portion, and a distal end, the elongate body further including a first pull fiber lumen, a second pull fiber lumen, a main lumen, and a connecting lumen disposed within the distal portion of the elongate body, the connecting lumen being in communication with the first and second pull fiber lumens, the first and second pull fiber lumens each having a proximal end and a distal end opposite the proximal end, the connecting lumen being curved around the main lumen and defining a loop encircling the main lumen;
a treatment element disposed at the distal end of the elongate body, the treatment element being distal to the connecting lumen;
a non-ferromagnetic pull fiber, at least a portion of the pull fiber being disposed within the first pull fiber lumen, the connecting lumen, and the second pull fiber;
a deflection mechanism coupled to an end of the non-ferromagnetic pull fiber; and
a console, the console being in fluid communication with the medical device, the medical device not being in electrical communication with the console.