Patent ID: 8512337

Claim:
A system for treatment of tachyarrhythmias, comprising: a set of bipolar electrosurgical ablation devices, comprising: a first ablation device having first mechanically coupled elongated opposing jaws extending distally with a first straight segment having a fixed first length, the first opposing jaws having first ablation elements extending along the length of the first straight segment of each of the opposing jaws; a second ablation device having second handle members defining a plane of the second ablation device, and second mechanically coupled elongated opposing jaws extending distally with a first curved segment having a fixed first radius of curvature and a second straight segment having a fixed second length, the second straight segment extending distally from the first curved segment, the second opposing jaws having second ablation elements extending along the first curved segment and the second straight segment of each of the second opposing jaws; a third ablation device having third handle members defining a plane of the second ablation device, and third mechanically coupled elongated opposing jaws extending distally with a second curved segment having a fixed second radius of curvature and a third straight segment having a fixed third length, the third straight segment extending distally from the second curved segment, the third opposing jaws having third ablation elements extending along the second curved segment and the third straight segment of each of the third opposing jaws; wherein the second opposing jaws extend out of the plane of the second ablation device and third opposing jaws extend out of the plane of the third ablation device, wherein the second radius of curvature is greater than the first radius of curvature and the first length is greater than the third length which is greater than the second length, and wherein the lengths and the radii of curvature are selected to allow arrangement of the opposing jaws of the first ablation device, the second ablation device and the third ablation device along opposite sides of walls of a patient's atrium such that by applying ablation energy to the walls with the electrodes, lines of lesion corresponding generally to incisions employed in a Maze type procedure may be produced.