ELECTROSURGICAL INSTRUMENT AND METHOD FOR INSERTING AN APPLICATOR INTO BODY LUMINA

摘要

An electrosurgical instrument, a guiding catheter and a method for inserting an applicator into body lumina along a direction of insertion. The electrosurgical instrument includes a guiding catheter for inserting an applicator into body lumina along a direction of insertion and a counter sleeve, wherein the counter sleeve and the guiding catheter are arranged axially displaceably in relation to one another, and the guiding catheter in a distal region has at least one radial suction opening and the electrosurgical instrument is designed to produce a negative pressure in the guiding catheter, and wherein, furthermore, a cutting element is arranged on the suction opening and/or a distal end of the counter sleeve.

主权项

1. An electrosurgical instrument comprising
a guide catheter for inserting an applicator into a body lumen along an insertion direction and a counter sleeve, wherein the counter sleeve and the guide catheter are arranged axially displaceably with respect to one another, and the guide catheter has at least one radial suction opening in a distal region, and the electrosurgical instrument is configured in order to generate a reduced pressure in the guide catheter, and wherein a cutting element is furthermore arranged at the suction opening and/or at a distal end of the counter sleeve.