ELECTROSURGICAL SEAL AND DISSECTION SYSTEMS

摘要

A bipolar electrosurgical fusion/sealer and dissector is provided that is arranged to simultaneously fuse and cut tissue captured between jaws of the instrument. The jaws include particularly positioned, shaped and/or oriented electrodes along with a compressible landing pad to perform the simultaneous fusion and cutting of tissue. An electrosurgical generator is arranged to supply RF energy through the instrument and monitors a phase angle of the supplied RF energy and adjusts or terminates the supplied RF energy based on the monitored phase angle to optimally fuse and dissect the tissue.

主权项

1. An electrosurgical system comprising:
an electrosurgical generator arranged to supply radio frequency (RF) energy through an electrosurgical instrument removably connectable thereto; the electrosurgical instrument comprising:
a first jaw;a second jaw opposing the first jaw, the first and second jaws pivotably arranged to grasp tissue between the first and second jaws;a first electrode disposed on the first jaw; anda second electrode disposed on the second jaw, the first and second electrodes of the first and second jaws being arranged to transmit radio frequency energy between the first and second electrodes to fuse and cut tissue between the first and second jaws with a center portion of the first jaw comprising a landing pad facing a center portion of the second jaw, the center portion of the second jaw comprising an insulator having a height with the height at the center portion of the jaw being the highest portion of the second jaw.