The invention relates to an electro-surgical treatment instrument comprising a holder connectable to a high frequency generator with at least two electrodes provided at the proximal end of the holder which can be brought into contact with the tissue of a patient.
In a known treatment instrument of this kind, (DE 34 23 352 C2) the two electrodes are arranged alongside one another with respect to the axis of the treatment instrument and formed as the branches of a pair of tweezers. In this way, tissue regions of a patient which can be grasped in a tweezer-like manner with the electrodes can be subjected to bi-polar coagulation.
If, however, tissue regions are to be coagulated which cannot simply be grasped in a simple tweezer-like manner, then coagulation requires very much attention and skill on behalf of the operator. This is because he must then select the electrode spacing necessary for bi-polar coagulation by pressing the tweezer-like electrodes together and adapt it as necessary to the resulting coagulation.