US Patent 11553963 Phrenic nerve stimulation

The disclosure notably relates to a system for phrenic nerve stimulation. The stimulation system comprises a catheter including one or more intravascular electrodes each arranged on a distal portion of the catheter. The catheter is configured to be introduced in the superior vena cava of a human patient. The stimulation system also comprises an extracorporeal electrode patch configured to be affixed to the patient opposite to the distal portion relative to the phrenic nerve. The extracorporeal electrode patch is operable in a bipolar mode with the one or more intravascular electrodes. Such a system forms an improved solution for phrenic nerve stimulation, in particular during a cryoablation procedure.