Method to remove a tumor using a percutaneous surgical instrument

摘要

The present invention relates to a method of removing a tumor by radiofrequency ablation, comprising providing a guiding device (6) having at least two first concentric through holes (8, 81, 82) and a plurality of second through holes (10, 11) at a periphery of the guiding device (6). The method further comprising placing the guiding device against the skin of a patient and inserting two first electrodes (3, 4, 5) into the first through holes (8, 81, 82) of the guiding device and into a patient's skin and then applying a first radiofrequency current between the two first electrodes (3, 4, 5). The method further comprising inserting a second electrode (5) through a second through hole (10, 11) and into the patient's skin and then applying a second radiofrequency current between a first electrode (3, 4) and the second electrode (5).

主权项

1. A method of removing a tumor by radiofrequency ablation, comprising:
providing a guiding device comprising a body extending between a front side and a back side, the body comprising at least two first through holes extending between the front side and the back side, wherein at least one of the first therethrough holes is configured for passing a helical electrode through, wherein the at least two first through holes are concentric, and wherein the body comprises a plurality of second through holes extending between the front side and the back side, the second through holes being disposed at a periphery of the body; placing the guiding device with the front side against a patient's skin; inserting at least two first electrodes for radiofrequency ablation, at least one of which is helical, into the first through holes, wherein the first through holes guide the at least two first electrodes penetrating through the skin; applying a first radiofrequency current between the at least two first electrodes; inserting a second electrode for radiofrequency ablation through at least one of the second through holes, wherein the at least one of the second through holes guides the second electrode penetrating through the skin; and applying a second radiofrequency current between either one of the at least two first electrodes and the second electrode.