IRRIGATED ABLATION CATHETER WITH MULTIPLE SENSORS

摘要

Systems and methods are disclosed for providing and using an irrigated ablation catheter. The catheter may include a distal shell electrode having irrigation apertures. An insert disposed within the electrode has protrusions that mate with orifices in the shell of the electrode. Each protrusion has a port communicating with at least one interior lumen in the insert and a sensor is disposed in each port. A support seals the proximal end of the electrode and engages the insert. The plurality of sensors may be used to measure electrical and thermal characteristics surrounding the electrode and may help assess contact between the electrode and tissue and/or determine movement of the electrode during ablation.