Patent ID: 9161802
Filing Date: 2015-10-20
Classification: A61B

Abstract:
1. A treatment apparatus comprising: a treatment tip including a treatment electrode and a dielectric layer, the treatment electrode comprising a conductive layer with an outer perimeter, a plurality of first openings extending through the conductive layer, and a plurality of second openings extending through the conductive layer, and the first openings being smaller in size than the second openings, wherein the second openings are located between the outer perimeter and the first openings, and wherein the second openings increase in size closer to the outer perimeter, wherein the conductive layer is in contact with the dielectric layer, and the conductive layer includes a conductive island inside at least some of the second openings, with the conductive islands increasing in size closer to the outer perimeter such that for each of the second openings including a conductive island, a constant ratio of conductive surface area to dielectric opening surface area is maintained; a handpiece configured to removably receive the treatment tip; and a generator configured to generate electromagnetic energy, wherein the conductive layer of the treatment electrode is electrically connected with the generator.