Global Patent Index - EP 1848357 A1

EP 1848357 A1 2007-10-31 - DEVICE FOR PRODUCING HIGH-FREQUENCY VOLTAGE FOR AN ELECTROSURGICAL CUTTING INSTRUMENT

Title (en)

DEVICE FOR PRODUCING HIGH-FREQUENCY VOLTAGE FOR AN ELECTROSURGICAL CUTTING INSTRUMENT

Title (de)

VORRICHTUNG ZUR ERZEUGUNG VON HOCHFREQUENZSPANNUNG FÜR EIN ELEKTROCHIRURGISCHES SCHNEIDINSTRUMENT

Title (fr)

DISPOSITIF DESTINE A PRODUIRE UNE TENSION HAUTE FREQUENCE POUR UN INSTRUMENT DE COUPE ELECTROCHIRURGICAL

Publication

EP 1848357 A1 (DE)

Application

EP 06704270 A

Priority

  • EP 2006000529 W
  • DE 102005004662 A

Abstract (en)

[origin: WO2006081956A1] The invention relates to a device (1) which is used to produce high-frequency voltage which is supplied to an electrosurgical cutting instrument with high-frequency energy, whereby the cutting part thereof is surrounded by electrically conductive fluid when in use. Said device comprises a high-frequency generator (4) which is connected to a power supply which is provided with a direct-current voltage source (6), in addition to a control (9) which is provided with a measuring and control device which is used to control the high-frequency power of the high-frequency generator (4). Said high-frequency generator (4) comprises and electric connection (2) which is used to connect active or different electrodes of the cutting instrument, preferably, to the blades thereof, and an electric connection (3) which is connected to a neutral or indifferent electrode. Said device (1) also comprises an additional energy accumulator (5) which is mounted in a parallel manner with the actual power supply of the high-frequency generator (4) and is connected to the measuring and control device and said accumulator provides transiently additional high power which forms and ionises an evaporation layer on the active electrode in the electrically conductive fluid.

IPC 8 full level (invention and additional information)

A61B 18/12 (2006.01)

CPC (invention and additional information)

A61B 18/1206 (2013.01)

Citation (search report)

See references of WO 2006081956A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

EPO simple patent family

DE 102005004662 A1 20060810; DE 102005004662 B4 20081106; EP 1848357 A1 20071031; WO 2006081956 A1 20060810

INPADOC legal status


2010-03-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20090926

2009-06-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20090515

2008-05-07 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) DELETED

2007-10-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20070622

2007-10-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR