PLASMA-SURGICAL APPARATUS COMPRISING A SPACER

摘要

The disclosure relates to a spacer in the form of an attachment (15) to be mounted to an endoscope (1), said attachment being formed like a cap, enclosing a spatial volume (16) and being made of an insulating material. The attachment (15) is further equipped with a mounting device/adapter (6) designed to be coupled to a distal end of the endoscope (1). The attachment (15) comprises an area (11) designed to be in contact with a target tissue and further forms an aperture (12) enclosing a surface area (12a). Within the spatial volume, there is arranged an electrode (9) comprising a distal (9b) and a proximal (9a) end, the distal (9b) end of the electrode (9) having a predetermined minimum distance to the closest point of the surface area (12a).

主权项

1. A spacer of a plasma-surgical instrument of the minimally invasive type, a distal end of the instrument being provided with an electrode which, when supplied with electrical energy, is adapted to generate an electric arc in a specific gaseous atmosphere and with a specific distance to a target tissue, characterized by
an attachment which is formed like a cap at least in sections, is made of an electrically insulating material, encloses a spatial volume and further comprises a mounting device designed to get coupled or be coupled to a distal end of an endoscopic feeding device for the plasma-surgical instrument, the attachment comprising a wall area which is designed to come into contact with the target tissue and forms a treatment aperture comprising a defined aperture area which is positioned and/or oriented such that the electrode protruding into the spatial volume and in particular its electrode tip has a predetermined minimum distance to the closest point, preferably the central point of the aperture area for the generation of the electric arc.