US 12,233,261 B2
Expandable electroporation devices and methods of use
Sarah M. Gruba, Vadnais Heights, MN (US); James A. Klos, Bay City, WI (US); James P. Rohl, Prescott, WI (US); Sandra L. Weeda, Scandia, MN (US); and Troy A. Giese, Blaine, MN (US)
Assigned to Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed by Boston Scientific Scimed, Inc., Maple Grove, MN (US)
Filed on Aug. 27, 2021, as Appl. No. 17/459,592.
Claims priority of provisional application 63/072,565, filed on Aug. 31, 2020.
Prior Publication US 2022/0062632 A1, Mar. 3, 2022
Int. Cl. A61N 1/32 (2006.01); A61M 25/10 (2013.01); A61N 1/05 (2006.01)
CPC A61N 1/327 (2013.01) [A61M 25/10 (2013.01); A61N 1/05 (2013.01); A61M 2025/105 (2013.01); A61M 2205/054 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A medical system, comprising:
a shaft having a proximal end and a distal end;
a balloon attached to the distal end of the shaft, the balloon configured to move between an expanded state and a deflated state, wherein a maximum diameter of the balloon is greater in the expanded state than in the deflated state, and wherein the balloon is further configured to receive a fluid from the proximal end of the shaft;
a first electrode attached to the shaft distal of the balloon;
a second electrode attached to the shaft proximal to the first electrode and disposed within the balloon; and
an electrical generator configured to supply a direct current to the first electrode and the second electrode,
wherein a portion of the balloon includes a fluid permeable region having a plurality of apertures fluidly connecting an interior of the balloon to an exterior of the balloon, and
wherein, in response to receiving the direct current, an electrical pathway is formed between the first electrode and the fluid permeable region, and an electrical signal is transmitted from the second electrode to an environment exterior of the balloon via the fluid received by the balloon and expelled through the plurality of apertures.