Electrosurgical device

Abstract

An electrosurgical device includes a high dielectric material and at least one conductor arranged relative to the high dielectric material such that, in use, the high dielectric material is disposed between the conductor and target tissue. A second conductor is arranged relative to the high dielectric material such that, in use, the high dielectric material is disposed between the second conductor and target tissue. Each conductor includes a plurality of conductive fingers interleaved, e.g. in a comb-like fashion or as concentric circles. A method for performing electrosurgery includes delivering energy to a target tissue through a high dielectric material. The electrosurgery includes, e.g., ablation, coagulation, or the treatment of skin lesions.

1 . An electrosurgical device comprising: 
 a high dielectric material;    means for delivering energy to a target tissue through the high dielectric material; and    means for adjusting a penetration depth of the delivered energy.    
   
   
       2 . An electrosurgical device comprising: 
 means for providing electrical energy;    means for distributing the electrical energy so as to obtain a substantially uniform field distribution, wherein, in use, the substantially uniform field distribution is applied to a target tissue; and    means for adjusting a penetration depth of the electrical energy.    
   
   
       3 . An electrosurgical device comprising: 
 means for providing electrical energy;    means for applying the electrical energy to a target tissue such that electric current does not flow through tissue immediately adjacent to the target tissue; and    means for adjusting a penetration depth of the applied electrical energy.