Flexible multiarm catheter with diameters facing sensing electrodes

摘要

The medical instrument includes a shaft, a plurality of flexible spines and a plurality of electrodes.The shaft is inserted into the patient's body.The plurality of flexible spins have respective first ends connected to the distal end of the shaft and independent second and second ends.The spins are bent nearer so that the second end is closer to the first end.Each of the flexible spins comprises a tensile layer configured to bend the flexible spun closely.A plurality of electrodes are disposed on the flexible spins.