Device for electrosurgically destroying body tissue

US8216219B2 · kind B2 · utility

Assignee

• Celon AG · DE

Inventors

• Kai Desinger · Berlin, DE
• Thomas Stein · Berlin, DE
• Andre Roggan · Berlin, DE
• Thomas Prezewowsky · Teltow, DE

Key dates

• Filing date: May 23, 2003
• Grant date: Jul 10, 2012
• Expiry date: Aug 8, 2029

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2018/143
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electrode array is used for the thermal schlerosing of body tissue. The electrode array has at least three active electrodes that, during use, are placed in electrical-conducting connection with body tissue. A high frequency generator is electrically connected for selective application of current to the active electrodes for producing a high frequency voltage. A measuring device measures impedance of the tissue between the active electrodes. In addition, a selector device selects a sub-array including at least two active electrodes from the electrode array, the selecting being effected on the basis of the measured impedance. Further, a control device is configured such that a high frequency voltage is respectively applied between the active electrodes of the selected sub-array in such a way that a high frequency current flows between the selected active electrodes through the body tissue.