Patent ID: 7507237
Filing Date: 2009-03-24
Classification: A61B

Abstract:
1. A catheter for intravascular application, with a proximal and a distal end and a catheter longitudinal axis, the catheter comprising: a shaft extending along the catheter longitudinal axis from the proximal end to the distal end and having a fluid-tight shaft wall and at least one lumen which is adapted to guide a fluid, which extends from the proximal end at least into the proximity of the distal end of the catheter and which is enclosed by the shaft, at least one electrically conductive wire which extends from the proximal end at least into the proximity of the distal end of the catheter along the catheter longitudinal axis, wherein at least one portion of the length of the catheter which is adapted for introduction into a body and is further adapted to provide a lower level of heat-transmission resistance obtains between a fluid in the lumen and the electrically conductive wire than between the wire and the shaft wall so that heat produced in the wire can be effectively dissipated to the fluid flowing in the lumen, wherein the catheter includes at least one temperature sensor which is arranged to detect a temperature which, in the case of heating of the wire, depends at least predominantly on the heating of the wire.