EP 3220840 A1 20170927 - RADIOFREQUENCY GENERATOR FOR CONNECTING A PROBE FOR INSERTION INTO BODY MEDIA
Title (en)
RADIOFREQUENCY GENERATOR FOR CONNECTING A PROBE FOR INSERTION INTO BODY MEDIA
Title (de)
HOCHFREQUENZGENERATOR ZUM ANSCHLUSS EINER SONDE ZUM EINFÜHREN IN KÖRPERMEDIEN
Title (fr)
GÉNÉRATEUR À HAUTE FRÉQUENCE POUR LE RACCORDEMENT D'UNE SONDE DESTINÉE À ÊTRE INTRODUITE DANS DES MILIEUX CORPORELS
Publication
Application
Priority
- DE 102014223558 A 20141118
- EP 2015077022 W 20151118
Abstract (en)
[origin: WO2016079207A1] The invention relates to a radiofrequency generator (12) for connecting a probe (10) for insertion into body media. The probe (10) to be connected has an elongate shaft (16) with a proximal end and a distal end (16.2, 16.1) and an electrical conductor (42, 44), extending along the shaft (16), with an inductive conduction layer and a capacitive conduction layer which determine a respective local wave impedance of the electrical conductor (42, 44). The radiofrequency generator (12) has a connector for a respective probe (10) to be connected to the radiofrequency generator (12), which connector is embodied, together with a connector of a respective probe (10), to feed an electrical signal into the electrical conductor of the probe (10) and decouple reflected signal portions of the electrical signal from the electrical conductor (42, 44). Moreover, the radiofrequency generator (12) has a measurement signal generator (24) and an evaluation unit (28), of which the measurement signal generator (24) is embodied to generate an electrical measurement signal to be fed to a probe (10) connected to the radiofrequency generator (12) during operation and the evaluation unit (28) is embodied to evaluate signal portions of the electrical measurement signal reflected by the probe (10) connected to the radiofrequency generator (12) during operation and supply a distance signal which identifies the location on the shaft of a probe (10) connected to the radiofrequency generator (12) during operation at which the permittivity of the immediate surroundings along the shaft changes as a result of a transition between the media surrounding the shaft.
IPC 8 full level
A61B 18/12 (2006.01); A61B 18/14 (2006.01)
CPC (source: EP)
A61B 18/1206 (2013.01); A61B 18/1492 (2013.01); A61B 2017/00039 (2013.01); A61B 2018/00785 (2013.01); A61B 2018/00869 (2013.01); A61B 2090/062 (2016.02)
Citation (search report)
See references of WO 2016079207A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102014223558 A1 20160519; EP 3220840 A1 20170927; WO 2016079207 A1 20160526
DOCDB simple family (application)
DE 102014223558 A 20141118; EP 15797320 A 20151118; EP 2015077022 W 20151118