Catheter and medical assembly

A - Human Necessities – 61 – B

Patent

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Details

A61B 5/055 (2006.01) A61B 5/042 (2006.01) A61B 5/0428 (2006.01)

Patent

CA 2662845

The present invention relates to a catheter (6) comprising: a connector (65, 66) at a proximal side of the catheter for connecting the catheter to an external signal transmission/receiving unit (10) for transmitting and/or receiving signals, an electrode (63, 64) at a distal side of the catheter, and an electrical connection including an electrical wire (61, 62) for electrically connecting the electrode and the connector for the transmission of signals between the electrode and the connector, wherein the electrical connection has a high electrical resistance of at least 1 k.OMEGA., in particular of at least 5 k.OMEGA.. Thus, the present invention provides a solution to prevent excessive heating during EP interventions under MR guidance by using by using highly resistive wires and or lumped resistors as connections within catheters.

La présente invention concerne un cathéter (6) comprenant : un connecteur (65, 66) en un côté proximal du cathéter permettant de connecter le cathéter à une unité d'émission/réception de signal externe (10) permettant de transmettre et/ou de recevoir des signaux, une électrode (63, 64) en un côté distal du cathéter, et une connexion électrique englobant un fil électrique (61, 62) permettant de raccorder électriquement l'électrode et le connecteur pour la transmission de signaux entre l'électrode et le connecteur, caractérisé en ce que la connexion électrique possède une résistance électrique élevée d'au moins 1 k.OMEGA., en particulier d'au moins 5 k.OMEGA.. Ainsi, la présente invention offre une solution pour empêcher tout chauffage excessif pendant les interventions EP sous guidage MR en utilisant des fils extrêmement résistifs et/ou des résistances localisées comme connexions dans des cathéters.

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