Patent ID: 9005197
Filing Date: 2015-04-14
Classification: A61B

Abstract:
1. A medical instrument for ablating tissue, comprising: first and second electrical poles extending around a loop configuration, said first and second poles being spaced apart from each other at least a first distance around said loop configuration, said first and second poles being capable of providing a first electrical charge across said first distance; third and fourth electrical poles extending around said loop configuration, said third and fourth poles being spaced apart from each other at least a second distance around said loop configuration, said third and fourth poles being capable of providing a second electrical charge across said second distance; an insulation layer separating said first and second poles from said third and fourth poles, said first and second poles facing toward an exterior of said loop configuration and said third and fourth poles facing toward an inner region of said loop configuration; wherein said loop configuration is rotatable around a tissue portion to ablate tissue circumferentially around said tissue portion to thereby isolate said tissue portion from adjacent tissue, said first and second electrical charges being independent of each other.