US 12,239,367 B2
Methods and devices for generating and delivering shaped microwave fields
Ketan Shroff, Pleasanton, CA (US); Dinesh I. Mody, San Jose, CA (US); and Michael Dobrowski, San Francisco, CA (US)
Assigned to MicroCube, LLC, Fremont, CA (US)
Filed by MicroCube, LLC, Fremont, CA (US)
Filed on Jun. 25, 2020, as Appl. No. 16/912,607.
Claims priority of provisional application 62/866,609, filed on Jun. 25, 2019.
Prior Publication US 2020/0405389 A1, Dec. 31, 2020
Int. Cl. A61B 18/18 (2006.01); H01Q 3/01 (2006.01); H01Q 21/06 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1815 (2013.01) [H01Q 3/01 (2013.01); H01Q 21/061 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/1823 (2013.01); A61B 2018/1861 (2013.01); A61B 2018/1884 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A medical device for treating tissue by applying a microwave energy from a transmission line coupled to a power supply, the medical device comprising:
an antenna comprising a radiating element, a shaping element and a dielectric piece;
the shaping element being electrically grounded using the power supply;
the dielectric piece having a distal end portion extending along a center of the antenna on a longitudinal axis of the antenna; and
the radiating element having a first portion and a second portion, and a middle portion therebetween which collectively form a working profile, the radiating element being flexible to have a delivery profile when constrained and to assume the working profile when unconstrained, directly coupled to the dielectric piece, wherein the first portion and the second portion that are located in the dielectric piece are spaced apart and extend in opposite directions longitudinally along the longitudinal axis of the antenna, and where a distal end of the distal end portion of the dielectric piece is directly coupled to a center of the middle portion along the longitudinal axis of the antenna; and
wherein application of microwave energy to the antenna generates a microwave field having a volumetric shape.