Monitoring and Controlling Energy Delivery of an Electrosurgical Device

摘要

A method is disclosed for delivering energy to a region of tissue within a patient's body using a medical treatment system. The medical treatment system comprises an energy delivery device coupled to an energy source and the method includes steps of delivering energy, measuring an energy delivery parameter, determining distance of the energy delivery device from a conductive object and optionally adjusting a position of the energy delivery device based on the determined distance.

主权项

1. A method is disclosed for delivering energy to a region of tissue within a patient's body using a medical treatment system, the medical treatment system comprising a medical device coupled to an energy delivery source, the method comprising the steps of:
(1) delivering energy from the medical device; (2) advancing the medical device while delivering the energy; (3) measuring an energy delivery parameter while advancing the medical device; (4) detecting whether or not a value of the energy delivery parameter crosses a threshold; (5) if the threshold is crossed, thereby indicating proximity of the medical device to a conductive object, determining a relative distance between the medical device and the conductive object based on one or more detected values of the energy delivery parameter; (6) comparing the relative distance determined as the device is being advanced to determine if the distance between the medical device and metal object is decreasing; and (7) upon determining that the distance between the medical device and the conductive object is decreasing, adjusting a position of the medical device and repeating steps (3)-(7) until the medical device is positioned at a desired distance from the conductive object.