US 12,226,148 B2
Electrode assembly for improved electric field distribution
Karen Julie Gehl, Vanløse (DK); Faisal Mahmood, Ishøj (DK); and Juan Luis Vásquez, København N (DK)
Assigned to Region Hovedstaden v/Herlev Hospital, Herlev (DK)
Appl. No. 17/290,882
Filed by Region Hovedstaden v/Herlev Hospital, Herlev (DK)
PCT Filed Nov. 5, 2019, PCT No. PCT/EP2019/080198
§ 371(c)(1), (2) Date May 3, 2021,
PCT Pub. No. WO2020/094622, PCT Pub. Date May 14, 2020.
Claims priority of application No. 18204365 (EP), filed on Nov. 5, 2018.
Prior Publication US 2021/0386474 A1, Dec. 16, 2021
Int. Cl. A61N 1/32 (2006.01); A61B 18/12 (2006.01); A61B 18/14 (2006.01); A61N 1/04 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1482 (2013.01) [A61B 18/1206 (2013.01); A61N 1/0416 (2013.01); A61N 1/0424 (2013.01); A61N 1/327 (2013.01); A61B 2018/0016 (2013.01); A61B 2018/00488 (2013.01); A61B 2018/005 (2013.01); A61B 2018/00517 (2013.01); A61B 2018/00613 (2013.01); A61B 2018/00982 (2013.01); A61B 2018/126 (2013.01); A61B 2018/143 (2013.01); A61B 2018/1475 (2013.01)] 21 Claims
OG exemplary drawing
 
21. An electrode apparatus comprising:
an electrode assembly comprising a bipolar arrangement of an even number of arrays, wherein said even number of arrays comprises two or more arrays, wherein each one of said two or more arrays comprises one or more electrode elements; and
wherein said two or more arrays have opposite polarity, when in operation; and
wherein said electrode elements of each one of said two or more arrays are at least three electrode elements, and wherein said at least three electrode elements of each one of said two or more arrays comprises a first, one or more central and an ending electrode element, and said at least three electrode elements of each one of said two or more arrays are configured to produce an electric field having uniform intensity along an imaginary straight line between said first and said ending electrode element of said at least three electrode elements having the same polarity, said imaginary line connecting and crossing said first and said ending electrode element having the same polarity; wherein said bipolar arrangement is a circular arrangement and wherein said first, one or more central and ending electrode element of each one of said two or more arrays are arranged on opposite locations of said bipolar arrangement; and
wherein, when in operation, said at least three electrode elements of one of said two or more arrays have a positive polarity and said at least three electrode elements of one of said two or more arrays have a negative polarity and said at least three electrode elements having a positive polarity are arranged on the perimeter of a first half of said circular arrangement and said at least three electrode elements having a negative polarity are arranged on said perimeter of a second opposite half of said circular arrangement; and
wherein said one or more central electrode element are offset of said imaginary straight line, thereby, when in operation, producing an electric field region having a square or rectangular shape cross section avoiding cold spots along said imaginary line.