US 12,465,422 B2
Cycling of ablation devices
Daniel Kollmann, Andover, MN (US); Charles Houtz, Minneapolis, MN (US); Catherine Condie, Shoreview, MN (US); Oleg Mosesov, Maple Grove, MN (US); Szymon Rzeszowski, Minneapolis, MN (US); and Sean Morgan, Camberley (GB)
Assigned to Biocompatibles UK Limited, Camberley (GB)
Filed by Biocompatibles UK Limited, Camberley (GB)
Filed on Mar. 12, 2021, as Appl. No. 17/200,086.
Claims priority of provisional application 62/989,284, filed on Mar. 13, 2020.
Prior Publication US 2021/0282850 A1, Sep. 16, 2021
Int. Cl. A61B 18/18 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1815 (2013.01) [A61B 2018/00577 (2013.01); A61B 2018/00708 (2013.01); A61B 2018/1823 (2013.01); A61B 2018/1869 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of tissue ablation, comprising:
providing a plurality of ablation devices for placing at or near a target area of a patient's anatomy, each ablation device having a microwave antenna, and each ablation device being configured to provide ablation energy in an ablation zone proximate to such ablation device when receiving ablation power;
positioning three or more of the plurality of ablation devices sufficiently close to each other such that the ablation zone of each one of the three or more ablation devices at least partially overlaps with the ablation zone of another one of the three or more ablation devices when the three or more ablation devices receive ablation power; and
repeatedly cycling through activation of each one of a plurality of ablation states via the causing of the selective receipt and non-receipt of ablation power for particular ablation devices, each ablation state corresponding to a respective unique subset of the plurality of ablation devices, wherein, when one of the plurality of ablation states is active, the corresponding subset of the plurality of ablation devices receive ablation power, wherein two of the three or more ablation devices are activated at any given time, wherein the two of the three or more ablation devices are adjacent to one another, and wherein the repeat cycling through activation of each one of the plurality of ablation states ablates low energy spots resulting from interference between the plurality of ablation devices.