Patent ID: 7976542
Filing Date: 2011-07-12
Classification: A61B

Abstract:
1. An adjustable high frequency electrode system comprising: a rigid shaft adapted to be inserted into a target tissue of a living body, the rigid shaft having a distal end and a proximal end, the distal end comprising an uninsulated electrode tip; an insulating covering with a proximal end and a distal end that covers at least a portion of the rigid shaft and at least a portion of the insulating covering can be moved with respect to the rigid shaft so that the exposed surface of the uninsulated electrode tip can be adjusted; the electrode system being configured to be connected to a high frequency generator so that a high frequency signal output from the high frequency generator can be applied to the target tissue near the uninsulated electrode tip when the rigid shaft is inserted into the living body; and a spacer between and directly adjacent to a hub of the electrode tip and a hub of the insulating covering, wherein the spacer includes a distal end, a proximal end, and a length between the distal and proximal end of the spacer, wherein the length of the spacer determines the length of the uninsulated electrode tip.