Veuillez attendre...
Donnez-nous votre avis au sujet de PATENTSCOPE ou dites-nous ce qui pourrait être ajouté ou comment nous pourrions améliorer l'interface.
The application arrangement according to the invention for applying a high frequency current for thermal sclerosing of body tissue, includes:
The application arrangement according to the invention is distinguished in that the portion of the trocar 5 intended to be introduced into body tissue is electrically insulating and, in particular when the electrode needle or shaft 3 is passed through the lumen, forms the casing body 7 for the shaft 3 of the electrode needle 1.
The trocar 5 performs two functions. On the one hand it performs the conventional tasks of a trocar 5, more specifically for example permitting accurately targeted feed of drugs or removal of tissue and the introduction of electrode needles 1 without having to make a fresh puncture each time. On the other hand the part of the trocar 5 which is in the body serves as an insulating casing body 7 displaceable relative to the shaft 3 of the electrode needle 1 for adjusting the length of the active region of the shaft 3, that is to say that region which projects out of the insulating casing body 7 and is in electrically conductive contact with the body tissue when the electrode needle 1 is inserted into the body.