Electrosurgical instrument

摘要

An electrosurgical instrument is provided. The electrosurgical instrument includes a housing. An outer shaft extends from the housing. The outer shaft includes a bifurcated distal end having a pair of first spaced-apart members with an elongated slot extending therebetween. The pair of first spaced-apart members configured to receive tissue therebetween. An inner shaft is disposed within the outer shaft and includes a bifurcated distal end having a pair of second spaced-apart members with an elongated slot extending therebetween. The pair of second spaced-apart members is configured to receive tissue therebetween. Each of the pairs of the first and second spaced apart members includes one or more electrodes thereon. The inner shaft is rotatable from an initial configuration for positioning tissue between the pairs of first and second spaced-apart members to a subsequent configuration for compressing the tissue disposed between the pairs of first and second spaced-apart members.

主权项

1. A method for electrosurgically treating tissue, comprising:
positioning tissue between pairs of first and second spaced-apart members of respective bifurcated distal ends of inner and outer shafts of an electrosurgical instrument, the pairs of first and second spaced-apart members each including at least one respective first and second electrode thereon, each of the at least one first and second electrodes adapted to connect to an electrosurgical energy source configured to supply electrosurgical energy thereto; rotating the inner shaft from an initial configuration to a subsequent configuration to compress the tissue between the pairs of first and second spaced-apart members; controlling a gap between the pairs of first and second spaced-apart members with a sensor when the inner shaft is in the subsequent configuration; regulating pressure applied to tissue positioned between the pairs of first and second spaced-apart members with a ratchet mechanism when the inner shaft is in the subsequent configuration; transmitting electrosurgical energy to the at least one first and second electrodes to seal tissue; and rotating the inner shaft to its initial configuration.