US 11,832,869 B2
Resistive heat ablation for treatment of the anatomy
Nikhil M. Murdeshwar, Maple Grove, MN (US); and Timothy Ozell, Maple Grove, MN (US)
Assigned to Gyrus ACMI, Inc., Westborough, MA (US)
Filed by GYRUS ACMI, INC., Southborough, MA (US)
Filed on Mar. 4, 2019, as Appl. No. 16/291,140.
Prior Publication US 2020/0281639 A1, Sep. 10, 2020
Int. Cl. A61B 18/00 (2006.01); A61B 18/04 (2006.01); A61B 18/08 (2006.01)
CPC A61B 18/082 (2013.01) [A61B 2018/00232 (2013.01); A61B 2018/00559 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/046 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A medical device comprising:
an expandable member comprising an inner expandable member having an outer surface and an outer expandable member having an inner surface;
a first fluid cavity located between the inner expandable member and the outer expandable member, wherein the first fluid cavity includes walls that are fluid impermeable;
a second fluid cavity, in an interior region defined within an inner surface of the inner expandable member and separated therefrom by a fluid impermeable wall of the walls of the first fluid cavity, the second fluid cavity in fluid communication with an inflation fluid source;
a first resistive heating element impregnated into the inner expandable member outer surface to resistively heat a fluid confined within the first fluid impermeable fluid cavity; and
a second resistive heating element impregnated into the outer expandable member inner surface to resistively heat the fluid confined within the first fluid impermeable fluid cavity.